A Polymer/Peptide Complex‐Based Sensor Array That Discriminates Bacteria in Urine. (26th October 2017)

• Record Type: Journal Article
• Authors: Han, Jinsong; Cheng, Haoran; Wang, Benhua; Braun, Markus Santhosh; Fan, Xiaobo; Bender, Markus; Huang, Wei; Domhan, Cornelius; Mier, Walter; Lindner, Thomas; Seehafer, Kai; Wink, Michael; Bunz, Uwe H. F.
• Is Part Of: Angewandte Chemie. Volume 129:Number 48(2017)
• Page Start: 15448
• Page End: 15453
• Publication Date: 2017-10-26
• Subjects: Bakterien -- Biosensoren -- Fluoreszenz -- Konjugierte Polymere -- Lineare Diskriminanzanalyse; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201706101
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: A negatively charged poly( para ‐phenyleneethynylene) (PPE) forms electrostatic complexes with four positively charged antimicrobial peptides (AMP). The AMPs partially quench the fluorescence of the PPE and discriminate fourteen different bacteria in water and in human urine by pattern‐based fluorescence recognition; the AMP‐PPE complexes bind differentially to the components of bacterial surfaces. The bacterial species and strains form clusters according to staining properties (Gram‐positive and Gram‐negative) or genetic similarity (genus, species, and strain). The identification and data treatment is performed by pattern evaluation with linear discriminant analysis (LDA) of the collected fluorescence intensity data.