Abstract:Near-infrared photoacoustic (PA) imaging usually employs near-infrared light-absorbing agents to detect cancer cells/tissue by generating acoustic energy from optical energy. Here, a class of near-infrared dyes, pyrene derivatives with different substitutes, was characterized by PA technology. Interestingly, the click reagents F4-TCNQ could cause the redshift of peaks of the PA intensity of pyrene derivatives. Besides, the symmetric pyrene derivatives had a better PA effect, pyrene accumulation of benzene ring… Show more
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