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Research interests:

The research group has interests in aspects of bioinorganic chemistry and materials chemistry.

Current projects:

 

v     Studies of biosilicification, the role of proteins, carbohydrates and model compounds in structure control.

v     Studies of protein interactions with novel surfaces.

v     Studies of aluminium antiperspirant activity (fundamental studies of aluminium polycations).

v     Systematic studies of the effects of topography and chemistry on wetting.

v     Modelling and Experimental Studies of Peptide-Mineral Interactions.

v     A Novel Approach to nanoscale (bio)materials assembly using bioengineered spider silk fusion proteins.

v     Biomineralization for lithography and microelectronics.

Research includes fundamental studies of in vivo and in vitro silicon-biomolecule interactions (proteins including collagen and carbohydrates). Research in this area has been extended to encompass studies of the effect of silicon (in a variety of forms) on the crystallisation of hydroxyapatite and the bioactivity and osteoconductivity properties of novel biomaterials. The principle of structural control by biopolymers is being utilised in our studies of toughened structural ceramics and the principle of recognition is being exploited in our study of protein interactions on surfaces with defined chemistry and topography.

 

Biosilica

 

Superhydrophobic to superhydrophilic switching

 

Tailoring surfaces for biomaterials

Al containing clusters and proteins interactions

Our other main research area involves the preparation and characterisation of aqueous and non-aqueous sol-gel derived materials. Our particular interests lie in understanding the molecular and structural chemistry involved in the production of such materials. We are also trying to reach an understanding of the role of chemistry and morphology/ topography in the development of super-hydrophobic and super-hydrophilic surfaces. We have additional interests in the application of experimental design approaches to materials synthesis and in the application of correlation analysis methods in the study of material structures and in the application of theoretical/ computational methods in the prediction of reactivity.

 

The four areas currently being explored are; (1) Biosilica chemistry, with the goal being to understand some of the ‘tricks’ used by organisms to control the structural and physical chemistry of amorphous materials, (2) Biomaterials chemistry with the current emphasis on understanding the relationships between surface chemistry and topography on wetting and protein adsorption, (3) the chemistry of alumina with specific emphasis on developing new materials using specific Al containing clusters and proteins (a mimic of nacre) and on understanding how antiperspirant actives work, and (4) the chemistry of other oxides and oxide –polymer composites.