The Florida State University Research Foundation, Inc

Hanjing Peng

Binghe Wang

Shilong Zheng

Nanting Ni

Minyong Li

Junfeng Wang

Yunfeng Cheng

Chung-Dar Lu

Han-Ting Chou

Selective chemosensing agents for hydrogen sulfide are provided. The chemosensing agents can act fast under mild conditions, are chemically stable for long-term storage, are sensitive for detection under near physiological conditions, show a linear concentration-signal relationship within physiologically relevant hydrogen sulfide concentration ranges for easy quantitation, show minimal or no interference by other anions in the blood, and are functional in aqueous solutions and blood plasma.

Chemosensors for hydrogen sulfide

The present disclosure encompasses compounds and compositions that are useful as specific AI-2 antagonists for the control of bacterial quorum sensing. Although the AI-2 antagonists according to the present disclosure may not have bactericidal effect, their ability to attenuate virulence, drug resistance, and/or biofilm formation have therapeutic benefits. In addition, the AI-2 antagonists of the present disclosure can also be used as tools to probe bacterial AI-2 functions. The present disclosure also encompasses methods for inhibiting or attenuating microbial virulence, biofilm formation, and drug resistance. The methods are suitable for preventing bacteria from accruing and forming extensive biofilms that may be a health or hygiene hazard or a physical issue, such as in the blockage of water or fuel lines.

Compositions for regulating or modulating quorum sensing in bacteria, methods of using the compounds, and methods of regulating or modulating quorum sensing in bacteria

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Chamblee, GA, United States of America

Hanjing Peng