l-tryptophan adsorption differentially changes the optical behaviour of pseudo-enantiomeric cysteine-functionalized quantum dots: Towards chiral fluorescent biosensors

Water-soluble chiral graphene quantum dots (GQDs) with a strong blue emission were synthesized by covalently immobilizing l-cysteine or d-cysteine onto the GQDs. Either the amine or the thiol group of cysteine was used to make the bond through amide coupling or thiol-ene click chemistry respectively...

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Bibliographic Details
Main Authors: Faezeh Askari, Abbas Rahdar, John F. Trant
Format: Article
Language:English
Published: Elsevier 2019-02-01
Series:Sensing and Bio-Sensing Research
Online Access:http://www.sciencedirect.com/science/article/pii/S221418041830117X