2024
DOI: 10.1002/smll.202407787
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Ultrasensitive NIR‐II Surface‐Enhanced Resonance Raman Scattering Nanoprobes with Nonlinear Photothermal Effect for Optimized Phototheranostics

Laicui Song,
Jin Li

Abstract: Surface‐enhanced resonance Raman scattering (SERRS) in the second near‐infrared (NIR‐II) window has great potential for improved phototheranostics, but lacks nonfluorescent, resonant and high‐affinity Raman dyes. Herein, it is designed and synthesize a multi‐sulfur Raman reporter, NF1064, whose maximum absorption of 1064 nm rigidly resonates with NIR‐II excitation laser while possessing absolutely nonfluorescent backgrounds. Ultrafast spectroscopy suggests that the fluorescence quenching mechanism of NF1064 or… Show more

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