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Light‐Harvesting Photosensitizers for Photodynamic Inactivation of Bacteria under Both Visible and Near‐Infrared Excitations
Author(s) -
Hu Bo,
Cao Xian,
Ahmadov Ms. Tevhide Ozkaya,
Ding Rui,
Tang Hong,
Zhang Peng
Publication year - 2016
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201600071
Subject(s) - singlet oxygen , photochemistry , photosensitizer , photodynamic therapy , visible spectrum , plasmon , chemistry , infrared , optoelectronics , surface plasmon resonance , near infrared spectroscopy , nanoparticle , materials science , oxygen , nanotechnology , optics , physics , organic chemistry
We report a hybrid singlet oxygen production system, where strong resonance coupling between plasmonic nanoparticles and photosensitizing molecules results in exceptionally high singlet oxygen production under both visible light and near‐infrared light excitation, even for the photosensitizing molecules without near‐infrared absorption. The light‐harvesting property of the plasmon‐photosensitizer hybrids leads to an enhanced, broad‐spectrum photodynamic inactivation of bacteria under a wide range of excitations, including that with near‐infrared light.