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Volume 149, 2011
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Generic protease detection technology for monitoring periodontal disease

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Periodontal diseases are inflammatory conditions that affect the supporting tissues of teeth and can lead to destruction of the bone support and ultimately tooth loss if untreated. Progression of periodontitis is usually site specific but not uniform, and currently there are no accurate clinical methods for distinguishing sites where there is active disease progression from sites that are quiescent. Consequently, unnecessary and costly treatment of periodontal sites that are not progressing may occur. Three proteases have been identified as suitable markers for distinguishing sites with active disease progression and quiescent sites: human neutrophil elastase, cathepsin G and MMP8. Generic sensor materials for the detection of these three proteases have been developed based on thin dextran hydrogel films cross-linked with peptides. Degradation of the hydrogel films was monitored using impedance measurements. The target proteases were detected in the clinically relevant range within a time frame of 3 min. Good specificity for different proteases was achieved by choosing appropriate peptide cross-linkers.

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Publication details

The article was received on 18 May 2010, accepted on 21 Jul 2010 and first published on 11 Oct 2010

Article type: Paper
DOI: 10.1039/C005364C
Faraday Discuss., 2011,149, 37-47

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    Generic protease detection technology for monitoring periodontal disease

    X. Zheng, J. P. Cook, M. Watkinson, S. Yang, I. Douglas, A. Rawlinson and S. Krause, Faraday Discuss., 2011, 149, 37
    DOI: 10.1039/C005364C

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