Photo of Dr Sabeel Valappil

Dr Sabeel Valappil BSc, MSc, PhD,PGCertEd FHEA

Lecturer in Dental Sciences School of Dentistry

    Publications

    Selected Publications

    1. Potential use of gallium-doped phosphate-based glass material for periodontitis treatment (Journal article - 2015)
    2. Effect of Gallium on Growth of Streptococcus mutans NCTC10449 and Dental Tissues (Journal article - 2014)
    3. Effect of novel antibacterial gallium-carboxymethyl cellulose on Pseudomonas aeruginosa (Journal article - 2013)
    4. Antimicrobial gallium-doped phosphate-based glasses (Journal article - 2008)
    5. Role of gallium and silver from phosphate-based glasses on in vitro dual species oral biofilm models of Porphyromonas gingivalis and Streptococcus gordonii (Journal article - 2012)
    6. Antibacterial effect of titanium dioxide-doped phosphate glass microspheres filled total-etch dental adhesive on S. mutans biofilm (Journal article - 2021)
    7. Glass microparticle- versus microsphere-filled experimental dental adhesives (Journal article - 2019)
    8. Nanosystems and antibacterial applications (Chapter - 2018)

    2022

    Antibacterial, Remineralizing Zinc Oxide-Doped Phosphate-Based Glasses (Journal article)

    Valappil, S., Rajadorai, S., Harris, G., Robinson, A., Miles, E. J., Roberts, J., . . . Flannigan, N. L. (2022). Antibacterial, Remineralizing Zinc Oxide-Doped Phosphate-Based Glasses. Materials Letters. doi:10.1016/j.matlet.2021.130813

    DOI: 10.1016/j.matlet.2021.130813

    2021

    Antibacterial effect of titanium dioxide-doped phosphate glass microspheres filled total-etch dental adhesive on S. mutans biofilm (Journal article)

    Neel, E. A. A., Hossain, K. M. Z., Abuelenain, D. A., Abuhaimed, T., Ahmed, I., Valappil, S. P., & Knowles, J. C. (2021). Antibacterial effect of titanium dioxide-doped phosphate glass microspheres filled total-etch dental adhesive on S. mutans biofilm. INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES, 108. doi:10.1016/j.ijadhadh.2021.102886

    DOI: 10.1016/j.ijadhadh.2021.102886

    Advanced Plaque Biofilm Modelling with Constant Depth Film Fermentation (Conference Paper)

    Softley, R., Slomaka, V., Higham, S., Darby, A., & Valappil, S. (2021). Advanced Plaque Biofilm Modelling with Constant Depth Film Fermentation. In OMIG Prize meeting 2021.

    Comparing antimicrobial effects of endodontic irrigants on Enterococcus faecalis using various in-vitro models (Conference Paper)

    Hamza Aly, A. R., Jarad, F., & Valappil, S. (2021). Comparing antimicrobial effects of endodontic irrigants on Enterococcus faecalis using various in-vitro models. In OMIG Prize meeting 2021.

    Effects of endodontic irrigants on Enterococcus faecalis (Conference Paper)

    Hamza Aly, A. R., Jarad, F., & Valappil, S. (2021). Effects of endodontic irrigants on Enterococcus faecalis. In ANTIMICROBIAL CHEMOTHERAPY VIRTUAL CONFERENCE.

    2020

    Auto fluorescent properties of early plaque grown in a Constant Depth Film Fermenter (Conference Paper)

    Hyde, J., Desmons, S., Hope, C., Miles, E., Jackson, J., Cooper, L., . . . Valappil, S. (2020). Auto fluorescent properties of early plaque grown in a Constant Depth Film Fermenter. In https://iadr.abstractarchives.com/abstract/20iags-3318835/autofluorescent-properties-of-early-plaque-grown-in-a-cdff. Washington, D.C., USA.

    2019

    In vitro evaluation of zinc-doped glasses as anti-caries agent (Conference Paper)

    Valappil, S. P., Robinson, A., Harris, G., Cooper, L., Flannigan, N., Higham, S., & Rajadorai, S. (2019). In vitro evaluation of zinc-doped glasses as anti-caries agent. In IADR Conference. Vancouver, Canada.

    Glass microparticle- versus microsphere-filled experimental dental adhesives (Journal article)

    Abou Neel, E. A., Kiani, A., Valappil, S. P., Mordan, N. M., Baek, S. Y., Zakir Hossain, K. M., . . . Knowles, J. C. (2019). Glass microparticle- versus microsphere-filled experimental dental adhesives. Journal of Applied Polymer Science. doi:10.1002/app.47832

    DOI: 10.1002/app.47832

    2018

    Efficacy of an Enzyme and Protein Toothpaste on Oral Biofilms (Conference Paper)

    Miles, E. J., Hoptroff, M., Valappil, S. P., & Higham, S. M. (2018). Efficacy of an Enzyme and Protein Toothpaste on Oral Biofilms. In IADR PAN European Regional Congress. London, England.

    Investigating the Effect of Starch Within the Oral Environment via Constant Depth Film Fermenter (Conference Paper)

    Roberts, J. M., Valappil, S. P., Lynch, R. J. M., Bradshaw, D. J., & Higham, S. M. (2018). Investigating the Effect of Starch Within the Oral Environment via Constant Depth Film Fermenter. In 65th ORCA Congress. Copenhagen, Denmark.

    Photodynamic Therapy Using Gallium and Curcumin on Streptococcus mutans NCTC10449 (Conference Paper)

    Valappil, S. P., Paul, W., Brown, C., Hope, C. K., Higham, S. M., & Sharma, C. P. (2018). Photodynamic Therapy Using Gallium and Curcumin on Streptococcus mutans NCTC10449. In 65th ORCA Congress. Copenhagen, Denmark.

    Nanosystems and antibacterial applications (Chapter)

    Valappil, S. P. (2018). Nanosystems and antibacterial applications. In Drug Delivery Nanosystems for Biomedical Applications (pp. 75-90). Elsevier. doi:10.1016/b978-0-323-50922-0.00005-5

    DOI: 10.1016/b978-0-323-50922-0.00005-5

    2017

    Evaluation of Pseudomonas aeruginosa Strain Specific Antimicrobial Activity of Gallium-Doped Phosphate Based Glasses. (Conference Paper)

    Wenqing, H., Fothergill, J., & Valappil, S. P. (2017). Evaluation of Pseudomonas aeruginosa Strain Specific Antimicrobial Activity of Gallium-Doped Phosphate Based Glasses.. In 15th International Conference on Pseudomonas. Liverpool, UK..

    Effect of different concentrations of fluoride on bovine enamel within a controlled biological model. (Conference Paper)

    Roberts, J. M., Valappil, S. P., lynch, R. J., Bradshaw, D. J., & Higham, S. M. (2017). Effect of different concentrations of fluoride on bovine enamel within a controlled biological model.. In ISSN: 0008-6568. Oslo, Norway.

    Effect of different concentrations of fluoride on bovine enamel within a controlled biological model. (Conference Paper)

    Roberts, J. M., Valappil, S. P., Lynch, R. J., Bradshaw, D. J., & Higham, S. M. (2017). Effect of different concentrations of fluoride on bovine enamel within a controlled biological model.. In ISSN: 0008-6568. Oslo, Norway.

    Evidence of an in vitro Coupled Diffusion Mechanism of Lesion Formation within Microcosm Dental Plaque (Journal article)

    Owens, G. J., Lynch, R. J. M., Hope, C. K., Cooper, L., Higham, S. M., & Valappil, S. P. (2017). Evidence of an in vitro Coupled Diffusion Mechanism of Lesion Formation within Microcosm Dental Plaque. CARIES RESEARCH, 51(3), 188-197. doi:10.1159/000456015

    DOI: 10.1159/000456015

    Preparation of Novel Gallium-Curcumin Nanocomplex to treat Streptococcus mutans NCTC10449. (Conference Paper)

    Valappil, S. P., Paul, W., Higham, S. M., & Sharma, C. P. (2017). Preparation of Novel Gallium-Curcumin Nanocomplex to treat Streptococcus mutans NCTC10449.. In ISSN: 0008-6568. Oslo, Norway.

    Gallium Complex Formulations with Anti-biofilm Property: Fighting Antibiotic Resistance. (Conference Paper)

    Paul, W., Valappil, S. P., Higham, S. M., & Sharma, C. P. (2017). Gallium Complex Formulations with Anti-biofilm Property: Fighting Antibiotic Resistance.. In 7th Indo Australian Conference on Biomaterials. Canberra, Australia.

    2016

    Effect of Zinc on Bovine Enamel Under pH-Cycling Conditions (Conference Paper)

    Rajadorai, S., Robinson, A., Harris, G., Cooper, L., Higham, S. M., & Valappil, S. P. (2016). Effect of Zinc on Bovine Enamel Under pH-Cycling Conditions. In Caries Res Vol. 50 (pp. 1-91). Athens, Greece.

    Effect of zinc-doped phosphate-based glasses on Streptococcus mutans NCTC10449 (Conference Paper)

    Valappil, S. P., Rajadorai, S., Robinson, A., Harris, G., & Higham, S. M. (2016). Effect of zinc-doped phosphate-based glasses on Streptococcus mutans NCTC10449. In Caries Res Vol. 50 (pp. 1-91). Athens, Greece.

    Use of Zinc and Fluoride within an in vitro pH-Cycling Model of Post-Eruptive Enamel Maturation (Conference Paper)

    Miles, E. J., Valappil, S. P., Lynch, R. J. M., & Higham, S. M. (2016). Use of Zinc and Fluoride within an in vitro pH-Cycling Model of Post-Eruptive Enamel Maturation. In Caries Res Vol. 50 (pp. 1-91). Athens, Greece.

    In vitro Biofilm Formation: NaF Exposure within a Sucrose Pulsing Strategy (Conference Paper)

    Owens, G. J., Lynch, R. J., Higham, S. M., Valappil, S. P., & Hope, C. K. (2016). In vitro Biofilm Formation: NaF Exposure within a Sucrose Pulsing Strategy. In European Organisation for Caries Research (ORCA) Vol. 47 (pp. 433-531). Liverpool.

    Use of QLF-D, MSI and TMR to Test an in vitro Post-Eruptive Enamel Maturation Model (Conference Paper)

    Miles, E. J., Valappil, S. P., Lynch, R. J., & Higham, S. M. (2016). Use of QLF-D, MSI and TMR to Test an in vitro Post-Eruptive Enamel Maturation Model. In ICQ 2016. Seoul, Republic of Korea.

    Antibacterial Action of Novel Gallium-Lactoferrin Nanocomplex on Streptococcus mutans NCTC10449 (Conference Paper)

    Valappil, S. P., Paul, W., Cherukaraveedu, D., Wade, B., Higham, S. M., & Sharma, C. P. (2016). Antibacterial Action of Novel Gallium-Lactoferrin Nanocomplex on Streptococcus mutans NCTC10449. In 94th General Session & Exhibition of the International Association for Dental Research. Seoul, Republic of Korea.

    Effect of Strontium and Fluoride within a Plaque-Fluid-Representative pH-Cycling Model (Conference Paper)

    Miles, E. J., Valappil, S. P., Lynch, R. J. M., & Higham, S. M. (2016). Effect of Strontium and Fluoride within a Plaque-Fluid-Representative pH-Cycling Model. In 94th General Session & Exhibition of the International Association for Dental Research. Seoul, Republic of Korea.

    Effect of starch based snacks on enamel demineralisation in situ (Conference Paper)

    Komarov, G. N., Cooper, L., Hope, C. K., Flannigan, N. L., Valappil, S. P., Smith, P. W., . . . Higham, S. M. (2016). Effect of starch based snacks on enamel demineralisation in situ. In 94th General Session & Exhibition of the International Association for Dental Research. Seoul, Republic of Korea.

    Evaluation of the antibiofilm effect of novel gallium-lactoferrin nanocomplex on Pseudomonas aeruginosa biofilm (Conference Paper)

    Valappil, S. P., Paul, W., Cherukaraveedu, D., Hope, C. K., Higham, S. M., & Sharma, C. P. (n.d.). Evaluation of the antibiofilm effect of novel gallium-lactoferrin nanocomplex on Pseudomonas aeruginosa biofilm. In 10.3389/conf.FBIOE.2016.01.02806. Montreal, Canada.

    In silico analyses of heparin binding proteins expression in human periodontal tissues. (Journal article)

    Lackey, B., Nunes, Q. M., Higham, S. M., Fernig, D. G., & Valappil, S. P. (2016). In silico analyses of heparin binding proteins expression in human periodontal tissues.. BMC research notes, 9, 53. doi:10.1186/s13104-016-1857-1

    DOI: 10.1186/s13104-016-1857-1

    2015

    Antimicrobial interfaces (Journal article)

    Valappil, S. P. (2015). Antimicrobial interfaces. RSC Smart Materials, 2015-January(10), 399-423.

    Effect of Scandium on Bovine Enamel Under pH-Cycling Conditions (Journal article)

    Valappil, S., Burden, E., Miles, E., Cooper, L., & Higham, S. (2015). Effect of Scandium on Bovine Enamel Under pH-Cycling Conditions.

    Evaluation of the co-existence of the red fluorescent plaque bacteria P. gingivalis with S. gordonii and S. mutans in white spot lesion formation during orthodontic treatment (Journal article)

    Sadeq, A., Risk, J. M., Pender, N., Higham, S. M., & Valappil, S. P. (2015). Evaluation of the co-existence of the red fluorescent plaque bacteria P. gingivalis with S. gordonii and S. mutans in white spot lesion formation during orthodontic treatment. PHOTODIAGNOSIS AND PHOTODYNAMIC THERAPY, 12(2), 232-237. doi:10.1016/j.pdpdt.2015.03.001

    DOI: 10.1016/j.pdpdt.2015.03.001

    Gallium and silver nano-composites: Fighting antibiotic resistance and antibacterial medical device coatings (Journal article)

    Paul, W., Durgadas, C. V., Higham, S., Valappil, S., & Sharma, C. P. (2015). Gallium and silver nano-composites: Fighting antibiotic resistance and antibacterial medical device coatings.

    Potential use of gallium-doped phosphate-based glass material for periodontitis treatment (Journal article)

    Sahdev, R., Ansari, T. I., Higham, S. M., & Valappil, S. P. (2015). Potential use of gallium-doped phosphate-based glass material for periodontitis treatment. JOURNAL OF BIOMATERIALS APPLICATIONS, 30(1), 85-92. doi:10.1177/0885328215571952

    DOI: 10.1177/0885328215571952

    Use of Plaque-Fluid Representative pH-Cycling Conditions to Model Post-Eruptive Enamel Maturation In Vitro. (Journal article)

    Miles, E., Valappil, S., Lynch, R., & Higham, S. (2015). Use of Plaque-Fluid Representative pH-Cycling Conditions to Model Post-Eruptive Enamel Maturation In Vitro..

    2014

    Effect of Gallium on Growth of Streptococcus mutans NCTC10449 and Dental Tissues (Journal article)

    Valappil, S. P., Owens, G. J., Miles, E. J., Farmer, N. L., Cooper, L., Miller, G., . . . Higham, S. M. (2014). Effect of Gallium on Growth of Streptococcus mutans NCTC10449 and Dental Tissues. Caries Research, 48(2), 137-146. doi:10.1159/000354048

    DOI: 10.1159/000354048

    Antibacterial effect of gallium and silver on Pseudomonas aeruginosa treated with gallium-silver-phosphate-based glasses (Journal article)

    Valappil, S. P., & Higham, S. M. (2014). Antibacterial effect of gallium and silver on Pseudomonas aeruginosa treated with gallium-silver-phosphate-based glasses. BIO-MEDICAL MATERIALS AND ENGINEERING, 24(3), 1589-1594. doi:10.3233/BME-140963

    DOI: 10.3233/BME-140963

    Antimicrobial Interfaces (Chapter)

    Valappil, S. P. (2014). Antimicrobial Interfaces. In C. Hutmacher (Ed.), Biointerfaces : Where Material Meets Biology (pp. 240). London: Royal Society of Chemistry (RSC).

    Characterisation of phosphate coacervates for potential biomedical applications (Journal article)

    Pickup, D. M., Newport, R. J., Barney, E. R., Kim, J. -Y., Valappil, S. P., & Knowles, J. C. (2014). Characterisation of phosphate coacervates for potential biomedical applications. JOURNAL OF BIOMATERIALS APPLICATIONS, 28(8), 1226-1234. doi:10.1177/0885328213502586

    DOI: 10.1177/0885328213502586

    Effect of Exposure to Plaque-Fluid Representative pH-Cycling Conditions on Bovine Enamel Demineralisation (Journal article)

    Miles, E. J., Valappil, S. P., Lynch, R. J. M., & Higham, S. M. (2014). Effect of Exposure to Plaque-Fluid Representative pH-Cycling Conditions on Bovine Enamel Demineralisation. 61st Annual ORCA Conference, 1, 1.

    Effect of Sucrose on In Vitro Biofilm Formation and Acidogenic Capacity (Journal article)

    Owens, G. J., Lynch, R. J. M., Higham, S. M., & Valappil, S. P. (2014). Effect of Sucrose on In Vitro Biofilm Formation and Acidogenic Capacity. IADR Conference-Cape Town, South Africa, 1, 1.

    Role of Gallium doped phosphate-based glasses in the Management of Periodontitis (Journal article)

    Lackey, B., Sahdev, R., Nunes, Q., Ansari, T., Higham, S. M., Fernig, D., & Valappil, S. P. (2014). Role of Gallium doped phosphate-based glasses in the Management of Periodontitis. ESB 2014 - 26th European Conference on Biomaterials, 1, 1.

    Use of pH-cycling conditions to model post-eruptive maturation of dental enamel in vitro (Journal article)

    Miles, E. J., Lynch, R. J. M., Valappil, S. P., & Higham, S. M. (2014). Use of pH-cycling conditions to model post-eruptive maturation of dental enamel in vitro. 11th International Medical Postgraduate Conference, 1, 1.

    2013

    Effect of novel antibacterial gallium-carboxymethyl cellulose on Pseudomonas aeruginosa (Journal article)

    Valappil, S. P., Yiu, H. H. P., Bouffier, L., Hope, C. K., Evans, G., Claridge, J. B., . . . Rosseinsky, M. J. (2013). Effect of novel antibacterial gallium-carboxymethyl cellulose on Pseudomonas aeruginosa. DALTON TRANSACTIONS, 42(5), 1778-1786. doi:10.1039/c2dt32235h

    DOI: 10.1039/c2dt32235h

    Comparison of two methods in the early detection of in vitro chemical demineralisation: a pilot study (Journal article)

    Desmons, S., Adeyemi, A. A., Miles, E., Burnside, G., de Josselin de Jong, E., Valappil, S. P., . . . Higham, S. M. (2013). Comparison of two methods in the early detection of in vitro chemical demineralisation: a pilot study. Caries Research, 47, 21.

    Effect of Scandium on Streptococcus mutansNCTC10449 (Journal article)

    Valappil, S. P., Sahdev, R., & Higham, S. M. (2013). Effect of Scandium on Streptococcus mutansNCTC10449. Caries Research, 47, 6.

    The visual assessment of early in vitro chemical demineralisation using a multispectral imaging method. (Journal article)

    Adeyemi, A. A., Desmons, S., Miles, E., Burnside, G., Valappil, S. P., Lynch, R. J. M., . . . Higham, S. M. (2013). The visual assessment of early in vitro chemical demineralisation using a multispectral imaging method.. Caries Research, 47, 37.

    2012

    Role of gallium and silver from phosphate-based glasses on in vitro dual species oral biofilm models of Porphyromonas gingivalis and Streptococcus gordonii (Journal article)

    Valappil, S. P., Coombes, M., Wright, L., Owens, G. J., Lynch, R. J. M., Hope, C. K., & Higham, S. M. (2012). Role of gallium and silver from phosphate-based glasses on in vitro dual species oral biofilm models of Porphyromonas gingivalis and Streptococcus gordonii. ACTA BIOMATERIALIA, 8(5), 1957-1965. doi:10.1016/j.actbio.2012.01.017

    DOI: 10.1016/j.actbio.2012.01.017

    59th ORCA Congress. June 27?30, 2012, Cabo Frio, Brazil (Journal article)

    59th ORCA Congress. June 27?30, 2012, Cabo Frio, Brazil (2012). Caries Research, 46(3), 268-338. doi:10.1159/000338545

    DOI: 10.1159/000338545

    2011

    Photobleaching of red fluorescence in oral biofilms (Journal article)

    Hope, C. K., de Jong, E. D. J., Field, M. R. T., Valappil, S. P., & Higham, S. M. (2011). Photobleaching of red fluorescence in oral biofilms. JOURNAL OF PERIODONTAL RESEARCH, 46(2), 228-234. doi:10.1111/j.1600-0765.2010.01334.x

    DOI: 10.1111/j.1600-0765.2010.01334.x

    Artifical occlusal surface morphology and in virto enamel demineralisation (Journal article)

    Owens, G., Lynch, R., Valappil, S., & Higham, S. M. (2011). Artifical occlusal surface morphology and in virto enamel demineralisation. Caries Research ORCA Lithuania, 45(2), 197-8 abs 58.

    Effect of Antibacterial Phosphate Based Glasses on Oral Biofilm Models (Conference Paper)

    Valappil, S. P., Coombes, M., Wright, L., Owens, G., Lynch, R. J. M., Hope, C. K., & Higham, S. M. (2011). Effect of Antibacterial Phosphate Based Glasses on Oral Biofilm Models. In British Society for Oral and Dental Research, Sheffield Vol. Abs 00 (pp. IADR Abs 152784).

    Effect of Antibacterial Phosphate Based Glasses on Oral Biofilm Models (Journal article)

    Valappil, S. P., Coombes, M., Wright, L., Owens, G. J., Lynch, R. J. M., Hope, C. K., & Higham, S. M. (2011). Effect of Antibacterial Phosphate Based Glasses on Oral Biofilm Models. BSODR Sheffield J Dent Res, abs, 1.

    Effect of gallium on Streptococcus mutans NCTC10449 and dental mineralisation (Journal article)

    Valappil, S. P., Owens, G. J., & Higham, S. M. (2011). Effect of gallium on Streptococcus mutans NCTC10449 and dental mineralisation. Caries Research ORCA Lithuania, 45(2), 229 abs 133.

    Occlusal Surface Morphology and pH Cycling Effect on Enamel Demineralisation (Journal article)

    Owens, G. J., Lynch, R. J. M., Valappil, S. P., & Higham, S. M. (2011). Occlusal Surface Morphology and pH Cycling Effect on Enamel Demineralisation. BSODR Sheffield J Dent Res, abs, 45.

    Photobleaching of red fluorescence in oral biofilms (Journal article)

    Hope, C. K., de Josselin de Jong, E., Field, M. R., Valappil, S. P., & Higham, S. M. (2011). Photobleaching of red fluorescence in oral biofilms. J Periodontal Res, 46(2), 228-234. doi:10.1111/j.1600-0765.20120.01334.x

    DOI: 10.1111/j.1600-0765.20120.01334.x

    2010

    Poly(3-hydroxybutyrate) multifunctional composite scaffolds for tissue engineering applications (Journal article)

    Misra, S. K., Ansari, T. I., Valappil, S. P., Mohn, D., Philip, S. E., Stark, W. J., . . . Boccaccini, A. R. (2010). Poly(3-hydroxybutyrate) multifunctional composite scaffolds for tissue engineering applications. BIOMATERIALS, 31(10), 2806-2815. doi:10.1016/j.biomaterials.2009.12.045

    DOI: 10.1016/j.biomaterials.2009.12.045

    Effect of nanoparticulate bioactive glass particles on bioactivity and cytocompatibility of poly(3-hydroxybutyrate) composites (Journal article)

    Misra, S. K., Ansari, T., Mohn, D., Valappil, S. P., Brunner, T. J., Stark, W. J., . . . Salih, V. (2010). Effect of nanoparticulate bioactive glass particles on bioactivity and cytocompatibility of poly(3-hydroxybutyrate) composites. JOURNAL OF THE ROYAL SOCIETY INTERFACE, 7(44), 453-465. doi:10.1098/rsif.2009.0255

    DOI: 10.1098/rsif.2009.0255

    Characterization of carbon nanotube (MWCNT) containing P(3HB)/bioactive glass composites for tissue engineering applications (Journal article)

    Misra, S. K., Ohashi, F., Valappil, S. P., Knowles, J. C., Roy, I., Silva, S. R. P., . . . Boccaccini, A. R. (2010). Characterization of carbon nanotube (MWCNT) containing P(3HB)/bioactive glass composites for tissue engineering applications. ACTA BIOMATERIALIA, 6(3), 735-742. doi:10.1016/j.actbio.2009.09.023

    DOI: 10.1016/j.actbio.2009.09.023

    Impaired bacterial attachment to light activated Ni-Ti alloy (Journal article)

    Chrzanowski, W., Valappil, S. P., Dunnill, C. W., Abou Neel, E. A., Lee, K., Parkin, I. P., . . . Knowles, J. C. (2010). Impaired bacterial attachment to light activated Ni-Ti alloy. MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS, 30(2), 225-234. doi:10.1016/j.msec.2009.10.003

    DOI: 10.1016/j.msec.2009.10.003

    Effect of antibacterial phosphate based glasses on Streptococcus gordonii DL1 (Journal article)

    Valappil, S. P., Wright, L., & Higham, S. M. (2010). Effect of antibacterial phosphate based glasses on Streptococcus gordonii DL1. IADR July, Barcelona, Spain. J Dent Res, 39B, Abs 3359.

    Effect of hydrogel concentration and calcium activity on demineralisation (Journal article)

    Owens, G. J., Lynch, R. J. M., Cooper, L., Valappil, S. P., & Higham, S. M. (2010). Effect of hydrogel concentration and calcium activity on demineralisation. 57th ORCA 7-10 July. Montpellier, France. Caries Res, 44(3), 187 abs 43.

    Role of Gallium in Dental Mineralisation and Antibacterial Prophylaxis (Journal article)

    Owens, G. J., Wright, L., Coombes, M., Higham, S. M., & Valappil, S. P. (2010). Role of Gallium in Dental Mineralisation and Antibacterial Prophylaxis. In OMIG meeting, Gregynog Hall, Wales, UK., 1, 1.

    Role of gallium in dental mineralisation (Journal article)

    Owens, G. J., Lynch, R. J. M., Cooper, L., Clowes, R., Higham, S. M., & Valappil, S. P. (2010). Role of gallium in dental mineralisation. IADR, 14-17 July. Barcelona, Spain. J Dent Res, 89B, Abs 337.

    Tooth Surface Proximity and Orientation in Relation to Light-Induced Fluorescent Quantification (Journal article)

    Owens, G. J., Lynch, R. J. M., Cooper, L., Valappil, S. P., & Higham, S. M. (2010). Tooth Surface Proximity and Orientation in Relation to Light-Induced Fluorescent Quantification. In ICQ2010 conference, Liverpool, UK, 1, 1.

    2009

    Development of remineralizing, antibacterial dental materials (Journal article)

    Mehdawi, I., Abou Neel, E. A., Valappil, S. P., Palmer, G., Salih, V., Pratten, J., . . . Young, A. M. (2009). Development of remineralizing, antibacterial dental materials. ACTA BIOMATERIALIA, 5(7), 2525-2539. doi:10.1016/j.actbio.2009.03.030

    DOI: 10.1016/j.actbio.2009.03.030

    Doping of a high calcium oxide metaphosphate glass with titanium dioxide (Journal article)

    Abou Neel, E. A., Chrzanowski, W., Valappil, S. P., O'Dell, L. A., Pickup, D. M., Smith, M. E., . . . Knowles, J. C. (2009). Doping of a high calcium oxide metaphosphate glass with titanium dioxide. JOURNAL OF NON-CRYSTALLINE SOLIDS, 355(16-17), 991-1000. doi:10.1016/j.jnoncrysol.2009.04.016

    DOI: 10.1016/j.jnoncrysol.2009.04.016

    Controlled delivery of antimicrobial gallium ions from phosphate-based glasses (Journal article)

    Valappil, S. P., Ready, D., Abou Neel, E. A., Pickup, D. M., O'Dell, L. A., Chrzanowski, W., . . . Knowles, J. C. (2009). Controlled delivery of antimicrobial gallium ions from phosphate-based glasses. ACTA BIOMATERIALIA, 5(4), 1198-1210. doi:10.1016/j.actbio.2008.09.019

    DOI: 10.1016/j.actbio.2008.09.019

    Preparation, structural characterisation and antibacterial properties of Ga-doped sol-gel phosphate-based glass (Journal article)

    Pickup, D. M., Valappil, S. P., Moss, R. M., Twyman, H. L., Guerry, P., Smith, M. E., . . . Newport, R. J. (2009). Preparation, structural characterisation and antibacterial properties of Ga-doped sol-gel phosphate-based glass. JOURNAL OF MATERIALS SCIENCE, 44(7), 1858-1867. doi:10.1007/s10853-008-3237-2

    DOI: 10.1007/s10853-008-3237-2

    Structural characterization by x-ray methods of novel antimicrobial gallium-doped phosphate-based glasses (Journal article)

    Pickup, D. M., Moss, R. M., Qiu, D., Newport, R. J., Valappil, S. P., Knowles, J. C., & Smith, M. E. (2009). Structural characterization by x-ray methods of novel antimicrobial gallium-doped phosphate-based glasses. JOURNAL OF CHEMICAL PHYSICS, 130(6). doi:10.1063/1.3076057

    DOI: 10.1063/1.3076057

    Antimicrobial Activity of Metal-Doped Phosphate Based Glasses on the growth of Pseudomonas aeruginosa biofilms (Journal article)

    Valappil, S. P., & Higham, S. M. (2009). Antimicrobial Activity of Metal-Doped Phosphate Based Glasses on the growth of Pseudomonas aeruginosa biofilms. 5th ASM conference on Biofilms, Cancun, Mexico, 0, 0.

    Bioactive functional materials: a perspective on phosphate-based glasses (Journal article)

    Abou Neel, E. A., Pickup, D. M., Valappil, S. P., Newport, R. J., & Knowles, J. C. (2009). Bioactive functional materials: a perspective on phosphate-based glasses. JOURNAL OF MATERIALS CHEMISTRY, 19(6), 690-701. doi:10.1039/b810675d

    DOI: 10.1039/b810675d

    Effect of Novel Gallium-Silver- Phosphate Based Glasses on Porphyromonas gingivalis (Journal article)

    Valappil, S. P., Coombes, M., Humphrey, Y., Rossinskey, M. J., & Higham, S. M. (2009). Effect of Novel Gallium-Silver- Phosphate Based Glasses on Porphyromonas gingivalis. BSDR, Glasgow, UK, 0, 0.

    Effect of novel gallium-silver-phosphate based glasses on Porphyromonas gingivalis (Journal article)

    Valappil, S. P., Coombes, M., Yiu, H. H. P., Rosseinsky, M., & Higham, S. M. (2009). Effect of novel gallium-silver-phosphate based glasses on Porphyromonas gingivalis. BSDR Glasgow J Dent Res, 88B, abs 220.

    2008

    Effect of silver-doped phosphate-based glasses on bacterial biofilm growth (Journal article)

    Valappil, S. P., Knowles, J. C., & Wilson, M. (2008). Effect of silver-doped phosphate-based glasses on bacterial biofilm growth. APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 74(16), 5228-5230. doi:10.1128/AEM.00086-08

    DOI: 10.1128/AEM.00086-08

    Polyhydroxyalkanoate biosynthesis in Bacillus cereus SPV under varied limiting conditions and an insight into the biosynthetic genes involved (Journal article)

    Valappil, S. P., Rai, R., Bucke, C., & Roy, I. (2008). Polyhydroxyalkanoate biosynthesis in Bacillus cereus SPV under varied limiting conditions and an insight into the biosynthetic genes involved. JOURNAL OF APPLIED MICROBIOLOGY, 104(6), 1624-1635. doi:10.1111/j.1365-2672.2007.03678.x

    DOI: 10.1111/j.1365-2672.2007.03678.x

    Antimicrobial gallium-doped phosphate-based glasses (Journal article)

    Valappil, S. P., Ready, D., Abou Neel, E. A., Pickup, D. M., Chrzanowski, W., O'Dell, L. A., . . . Knowles, J. C. (2008). Antimicrobial gallium-doped phosphate-based glasses. ADVANCED FUNCTIONAL MATERIALS, 18(5), 732-741. doi:10.1002/adfm.200700931

    DOI: 10.1002/adfm.200700931

    Antimicrobial Activity of Metal-Doped Phosphate Based Glasses on Periodontal Pathogens (Journal article)

    Valappil, S. P., Ready, D., Wilson, M., & Knowles, J. C. (2008). Antimicrobial Activity of Metal-Doped Phosphate Based Glasses on Periodontal Pathogens. PEF IADR London J Dent Res, 87, 171.

    Antimicrobial activity of metal-doped phosphate based glasses on periodontal pathogens (Journal article)

    Valappil, S., Ready, D., Wilson, M., & Knowles, J. C. (2008). Antimicrobial activity of metal-doped phosphate based glasses on periodontal pathogens. 3rd PEF/IADR Sept London J Dent Res, 87, 0588.

    Calcium phosphate and antibacterial agent releasing methacrylate dental composite (Journal article)

    Mehdawi, I., Pratten, J., Spratt, D., Valappil, S., Palmer, G., & Young, A. (2008). Calcium phosphate and antibacterial agent releasing methacrylate dental composite. 3rd PEF/IADR, Sept, London. J Dent Res, 87, 0584.

    Calcium phosphate and antibacterial agent releasing methacrylate dental composite (Journal article)

    Mehdawi, I., Pratten, J., Spratt, D., Valappil, S. P., Palmer, G., & Young, A. (2008). Calcium phosphate and antibacterial agent releasing methacrylate dental composite. PEF IADR London J Dent Res, 87, 170.

    Effect of increasing calcium content in gallium doped-phosphate based glass compositions on bacterial biofilms (Journal article)

    Valappil, S. P., Wilson, M., & Knowles, J. C. (2008). Effect of increasing calcium content in gallium doped-phosphate based glass compositions on bacterial biofilms. 8th World Biomaterials Congress, Amsterdam, Netherlands, 0(0), 1.

    Effect of surface modification of nickel titanium alloy on bacterial attachment (Journal article)

    Chrzanowski, W., Valappil, S. P., Pratten, J., Armitage, D. A., & Knowles, J. C. (2008). Effect of surface modification of nickel titanium alloy on bacterial attachment. 8th World Biomaterials Congress, Amsterdam, Netherlands, 0(0), 1.

    Microbial PHA biosynthesis and its applications (Journal article)

    Roy, I., Philip, S. E., Francis, L., Rai, R., Valappil, S. P., Markiv, A., . . . Boccaccini, A. R. (2008). Microbial PHA biosynthesis and its applications. 11th International Symposium on Biodegradable Polyesters, Auckland, New Zealand, 0, 0.

    Microbial PHA biosynthesis using Gram positive and Gram negative bacteria and its applications (Journal article)

    Philp, S., Francis, L., Rai, R., Valappil, S. P., Keshavarz, T., & Roy, I. (2008). Microbial PHA biosynthesis using Gram positive and Gram negative bacteria and its applications. COST Action 868, Bratislava, Slovak Republic, 0, 0.

    Microbial biosynthesis of PHAs and its application (Journal article)

    Roy, I., Philip, S. E., Francis, L., Rai, R., Valappil, S. P., Markiv, A., . . . Boccaccini, A. R. (2008). Microbial biosynthesis of PHAs and its application. COST Action 868: Varna, Bulgaria, 0, 0.

    Nanoscale investigation of the effect of silver doped-phosphate based glasses on bacterial biofilms (Journal article)

    Valappil, S. P., Chrzanowski, W., Wilson, M., & Knowles, J. C. (2008). Nanoscale investigation of the effect of silver doped-phosphate based glasses on bacterial biofilms. 8th World Biomaterials Congress, Amsterdam,Netherlands, 0(0), 1.

    2007

    Effect of silver content on the structure and antibacterial activity of silver-doped phosphate-based glasses (Journal article)

    Valappil, S. P., Pickup, D. M., Carroll, D. L., Hope, C. K., Pratten, J., Newport, R. J., . . . Knowles, J. C. (2007). Effect of silver content on the structure and antibacterial activity of silver-doped phosphate-based glasses. ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 51(12), 4453-4461. doi:10.1128/AAC.00605-07

    DOI: 10.1128/AAC.00605-07

    Large-scale production and efficient recovery of PHB with desirable material properties, from the newly characterised Bacillus cereus SPV (Journal article)

    Valappil, S. P., Misra, S. K., Boccaccini, A. R., Keshavarz, I., Bucke, C., & Roy, I. (2007). Large-scale production and efficient recovery of PHB with desirable material properties, from the newly characterised Bacillus cereus SPV. JOURNAL OF BIOTECHNOLOGY, 132(3), 251-258. doi:10.1016/j.jbiotec.2007.03.013

    DOI: 10.1016/j.jbiotec.2007.03.013

    The structure and properties of silver-doped phosphate-based glasses (Journal article)

    Ahmed, I., Abou Neel, E. A., Valappil, S. P., Nazhat, S. N., Pickup, D. M., Carta, D., . . . Knowles, J. C. (2007). The structure and properties of silver-doped phosphate-based glasses. JOURNAL OF MATERIALS SCIENCE, 42(23), 9827-9835. doi:10.1007/s10853-007-2008-9

    DOI: 10.1007/s10853-007-2008-9

    Effect of ternary phosphate-based glass compositions on osteoblast and osteoblast-like proliferation, differentiation and death in vitro (Journal article)

    Skelton, K. L., Glenn, J. V., Clarke, S. A., Georgiou, G., Valappil, S. P., Knowles, C., . . . Jordan, G. R. (2007). Effect of ternary phosphate-based glass compositions on osteoblast and osteoblast-like proliferation, differentiation and death in vitro. ACTA BIOMATERIALIA, 3(4), 563-572. doi:10.1016/j.actbio.2006.11.008

    DOI: 10.1016/j.actbio.2006.11.008

    Fabrication and characterization of biodegradable poly(3-hydroxybutyrate) composite containing bioglass (Journal article)

    Misra, S. K., Nazhat, S. N., Valappil, S. P., Moshrefi-Torbati, M., Wood, R. J. K., Roy, I., & Boccaccini, A. R. (2007). Fabrication and characterization of biodegradable poly(3-hydroxybutyrate) composite containing bioglass. BIOMACROMOLECULES, 8(7), 2112-2119. doi:10.1021/bm0701954

    DOI: 10.1021/bm0701954

    Poly(3-hydroxybutyrate)/Bioglass (R) composite films containing carbon nanotubes (Journal article)

    Misra, S. K., Watts, P. C. P., Valappil, S. P., Silva, S. R. P., Roy, I., & Boccaccini, A. R. (2007). Poly(3-hydroxybutyrate)/Bioglass (R) composite films containing carbon nanotubes. NANOTECHNOLOGY, 18(7). doi:10.1088/0957-4484/18/7/075701

    DOI: 10.1088/0957-4484/18/7/075701

    Polyhydroxyalkanoate (PHA) biosynthesis from structurally unrelated carbon sources by a newly characterized Bacillus spp. (Journal article)

    Valappil, S. P., Peiris, D., Langley, G. J., Hemiman, J. M., Boccaccini, A. R., Bucke, C., & Roy, I. (2007). Polyhydroxyalkanoate (PHA) biosynthesis from structurally unrelated carbon sources by a newly characterized Bacillus spp.. JOURNAL OF BIOTECHNOLOGY, 127(3), 475-487. doi:10.1016/j.jbiotec.2006.07.015

    DOI: 10.1016/j.jbiotec.2006.07.015

    Effect of increasing silver content in ternary phosphate based glass compositions on biofilms of Staphylococcus aureus (Journal article)

    Valappil, S. P., Wilson, M., & Knowles, J. C. (2007). Effect of increasing silver content in ternary phosphate based glass compositions on biofilms of Staphylococcus aureus. 4th ASM conference on Biofilms, Qubec city, Canada, 0(0), 162.

    Nanoindentation testing of biodegradabale polymers (Journal article)

    Torbati, M. M., Wood, R. J. K., Misra, S. K., Valappil, S. P., Boccaccini, A. R., & Roy, I. (2007). Nanoindentation testing of biodegradabale polymers. 3rd International intendation workshop, Cambridge,UK, 0(0), 1.

    PHA biosynthesis by Bacillus cereus SPV under varied nutrient conditions (Journal article)

    Rai, R., Valappil, S. P., Keshavarz, T., & Roy, I. (2007). PHA biosynthesis by Bacillus cereus SPV under varied nutrient conditions. 1st annual workshop Biotechnical functionalisation of renewable polymeric materials, COST Action 868, Graz, Austria, 0(0), 1.

    2006

    Polyhydroxyalkanoates in Gram-positive bacteria: insights from the genera Bacillus and Streptomyces (Journal article)

    Valappil, S. P., Boccaccini, A. R., Bucke, C., & Roy, I. (2007). Polyhydroxyalkanoates in Gram-positive bacteria: insights from the genera Bacillus and Streptomyces. ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY, 91(1), 1-17. doi:10.1007/s10482-006-9095-5

    DOI: 10.1007/s10482-006-9095-5

    Biomedical applications of polyhydroxyalkanoates, an overview of animal testing and in vivo responses (Journal article)

    Valappil, S. P., Misra, S. K., Boccaccini, A. R., & Roy, I. (2006). Biomedical applications of polyhydroxyalkanoates, an overview of animal testing and in vivo responses. EXPERT REVIEW OF MEDICAL DEVICES, 3(6), 853-868. doi:10.1586/17434440.3.6.853

    DOI: 10.1586/17434440.3.6.853

    Polyhydroxyalkanoate (PHA)/inorganic phase composites for tissue engineering applications (Journal article)

    Misra, S. K., Valappil, S. P., Roy, I., & Boccaccini, A. R. (2006). Polyhydroxyalkanoate (PHA)/inorganic phase composites for tissue engineering applications. BIOMACROMOLECULES, 7(8), 2249-2258. doi:10.1021/bm060317c

    DOI: 10.1021/bm060317c

    Development of novel Polyhydroxyalkanoate/Bioglass® composite scaffolds for tissue engineering applications (Journal article)

    Misra, S. K., Valappil, S. P., Nazhat, S. N., Torbati, M. M., Roy, I., & Boccaccini, A. R. (2006). Development of novel Polyhydroxyalkanoate/Bioglass® composite scaffolds for tissue engineering applications. 20th European Conference on Biomaterials,Nantes, France, 0(0), 1.

    Nanoindentation testing of biodegradabale polymers (Journal article)

    Wood, R. J. K., Dan, S., Torbati, M. M., Misra, S. K., Valappil, S. P., Boccaccini, A. R., & Roy, I. (2006). Nanoindentation testing of biodegradabale polymers. CAMTEC Workshop, Cambridge, UK, 0(0), 1.

    Polyhydroxyalkanoates biosynthesis in Bacillus cereus SPV and its applications (Journal article)

    Roy, I., Valappil, S. P., Misra, S. K., & Boccaccini, A. R. (2006). Polyhydroxyalkanoates biosynthesis in Bacillus cereus SPV and its applications. International Symposium on Biological Polyesters, ISBP, Minnesota, USA., 0(0), 1.

    2005

    Effect of recovery process on the physical and mechanical properties of Polyhydroxybutyrate (PHB) extracted from a newly isolated Bacillus sp (Journal article)

    Valappil, S. P., Misra, S. K., Boccaccini, A. R., Bucke, C., & Roy, I. (2005). Effect of recovery process on the physical and mechanical properties of Polyhydroxybutyrate (PHB) extracted from a newly isolated Bacillus sp. UKSB annual meeting, Nottingham, UK., 0(0), 1.

    Effect of various carbon sources on the production of PHAs from the newly isolated Bacillus sp (Journal article)

    Valappil, S. P., Bucke, C., & Roy, I. (2005). Effect of various carbon sources on the production of PHAs from the newly isolated Bacillus sp. International Union of Microbiological Societies Congress, IUMS, San Fransisco, USA, 0(0), 1.

    Large scale production of P (3HB) from newly isolated Bacillus sp (Journal article)

    Valappil, S. P., Keshavarz, T., Bucke, C., & Roy, I. (2005). Large scale production of P (3HB) from newly isolated Bacillus sp. BioMicroWorld, Badajoz, Spain, 0(0), 1.

    Natural biodegradable polymers from the Polyhydroxyalkanoate family emerging as a promising material for Biomedical Applications (Journal article)

    Misra, S. K., Valappil, S. P., Nazhat, S. N., Roy, I., & Boccaccini, A. R. (2005). Natural biodegradable polymers from the Polyhydroxyalkanoate family emerging as a promising material for Biomedical Applications. A Forecast of the Future for Biomaterials-Professor Larry L. Hench Retirement Symposium,Imperial College London, UK, 0(0), 1.

    Novel PHA/Bioglass® composites for soft-tissue and hard-tissue engineering scaffolds (Journal article)

    Valappil, S. P., Misra, S. K., Boccaccini, A. R., Bucke, C., & Roy, I. (2005). Novel PHA/Bioglass® composites for soft-tissue and hard-tissue engineering scaffolds. EPSRC Workshop, Swansea, UK, 0(0), 1.

    Polyhydroxyalkanoate synthases-the enzymes involved in biodegradable polymer biosynthesis (Journal article)

    Valappil, S. P., Philip, S., Odell, M., Keshavarz, T., & Roy, I. (2005). Polyhydroxyalkanoate synthases-the enzymes involved in biodegradable polymer biosynthesis. Frontiers in Chemical Biology: Mechanistic Enzymology and Biocatalysis, Exeter, UK., 0(0), 1.

    Production of polyhydroxyalkanoates (PHAs) by Gram-positive bacteria (Thesis / Dissertation)

    Valappil, S. P. (2005). Production of polyhydroxyalkanoates (PHAs) by Gram-positive bacteria. (PhD Thesis, Westminster College).

    2004

    Biosynthesis of polyhydroxyalkanoic acid by S. coelicolor (Journal article)

    Valappil, S. P., Bhatia, Y., Bucke, C., & Roy, I. (2004). Biosynthesis of polyhydroxyalkanoic acid by S. coelicolor. , e-polymers, The Scientific e-only polymer journal, 0(0), P_049. Retrieved from http://www.e-polymers.org/journal/abstract.cfm?abstract_Id=784

    Identification and Isolation of polyhydroxyalkanoic acids and cloning of the PHA biosynthetic genes from Bacillus cereus SPV (Journal article)

    Valappil, S. P., Bucke, C., & Roy, I. (2004). Identification and Isolation of polyhydroxyalkanoic acids and cloning of the PHA biosynthetic genes from Bacillus cereus SPV. International Symposium on Biological Polyesters, ISBP, Beijing, China, 0(0), 1.

    2003

    Production of different PHAs by S. coelicolor (Journal article)

    Valappil, S. P., Bhatia, Y., Bucke, C., & Roy, I. (2003). Production of different PHAs by S. coelicolor. International Conference on Biopolyesters, ICBP, Tokyo, Japan, 0(0), 1.

    2002

    A possible role of poly-3-hydroxybuiyric acid in antibiotic production inStreptomyces (Journal article)

    Verma, S., Bhatia, Y., Valappil, S. P., & Roy, I. (2002). A possible role of poly-3-hydroxybuiyric acid in antibiotic production inStreptomyces. Archives of Microbiology, 179(1), 66-69. doi:10.1007/s00203-002-0500-9

    DOI: 10.1007/s00203-002-0500-9

    Biosynthesis of polyhydroxyalkanoic acid by S. coelicolor A3(2) M145 (Journal article)

    Valappil, S. P., Bhatia, Y., Bucke, C., & Roy, I. (2002). Biosynthesis of polyhydroxyalkanoic acid by S. coelicolor A3(2) M145. International Symposium on Biological Polyesters, ISBP, Munster, Germany, 0(0), 1.