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Near‐IR Photochemistry for Biology: Exploiting the Optical Window of Tissue
Author(s) -
Alabugin Alexander
Publication year - 2019
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/php.13068
Subject(s) - chromophore , nanotechnology , macromolecule , excited state , fluorescence , chemistry , biophysics , isomerization , photochemistry , materials science , biology , physics , organic chemistry , optics , biochemistry , nuclear physics , catalysis
Photoactive molecules enable much of modern biology and biochemistry—a vast library of fluorescent chromophores is used to track and label cellular structures and macromolecules. However, photochemistry is better known to the synthetic or physical organic chemist as a “light switch” that turns on unusual excited‐state reactivity, isomerization, or dynamic adjustment of structure. This review details a rapidly growing approach to biophotochemistry that uses low‐energy near‐ IR wavelengths not only for imaging, but also for close spatial control over chemical switching events in biosystems. Emphasis is placed on topics of biomedical interest: release of gaseous biological messengers, uncaging of drugs, nano‐therapeutics, and modification of biomaterials.

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