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Title: Mechanical-Bending-Induced Fluorescence Enhancement in Plastically Flexible Crystals of a GFP Chromophore Analogue
Authors: Bhattacharya, B
Roy, D
Dey, S
Puthuvakkal, A
Bhunia, S
Mondal, S
Chowdhury, R
Bhattacharya, M
Manoj, K
Mandal, PK
Reddy, CM
Keywords: flexible crystals
fluorescence properties
green fluorescent protein chromophore
mechanical properties
pi-stacking interactions
Issue Date: 2-Nov-2020
Publisher: Wiley
Citation: Angewandte Chemie International Edition;59(45):19878-19883
Abstract: Single crystals of optoelectronic materials that respond to external stimuli, such as mechanical, light, or heat, are immensely attractive for next generation smart materials. Here we report single crystals of a green fluorescent protein (GFP) chromophore analogue with irreversible mechanical bending and associated unusual enhancement of the fluorescence, which is attributed to the strained molecular packing in the perturbed region. Soft crystalline materials with such fluorescence intensity modulations occurring in response to mechanical stimuli under ambient pressure conditions will have potential implications for the design of technologically relevant tunable fluorescent materials.
Appears in Collections:2020

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