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Details of Grant 

EPSRC Reference: GR/R67446/01
Title: Bioactives materials through ultrathin surface modifications
Principal Investigator: Williams, Professor NH
Other Investigators:
Haycock, Professor JW
Researcher Co-Investigators:
Project Partners:
Department: Chemistry
Organisation: University of Sheffield
Scheme: Standard Research (Pre-FEC)
Starts: 13 August 2002 Ends: 12 January 2006 Value (£): 181,612
EPSRC Research Topic Classifications:
Biological & Medicinal Chem. Physical Organic Chemistry
Tissue Engineering
EPSRC Industrial Sector Classifications:
Manufacturing Healthcare
No relevance to Underpinning Sectors
Related Grants:
Panel History:  
Summary on Grant Application Form
The intimate contact between soft tissue and medical devices can cause an inflammation response with serious consequences, such as device failure. Current systemic or topical treatments do not provide a satisfactory solution, so we want to address this problem by modifying the contact surface of medical devices to make them biocompatible and to have their own localised therapeutic action. We will do this by attaching bioactive peptides to the surface of devices so inflammation is suppressed and cell adhesion encouraged. Our attachment strategy is to use calixarene derivatives that we know bind to and modify the surface properties of many materials. By virtue of low loading and simple application, this treatment has the potential to be very versatile, both for specialised devices and bulk, low cost materials. We shall establish a flexible synthetic route so that the effect of key structural features on surface attachment and bioactivity can be established and optimised. The effect of surface loading and attachment of these peptide sequences will be evaluated by assessing their impact on cell adhesion, and on the ability of cells to withstand inflammatory cytokines and oxidative stress. The ultimate aim will be to create a generic type of treatment for medical devices which encourages the selective adhesion of cells which have their inflammation response suppressed.
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Organisation Website: http://www.shef.ac.uk