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Abstract:
Most photodynamic therapy (PDT) paradigms work through the highly O-2-dependent type II photoreaction to generate singlet oxygen (O-1(2)). The hypoxic microenvironment of solid tumors severely hampers therapeutic outcomes. Here, we present a novel design that could transfer the photo-physical and photo-chemical properties of traditional phthalocyanine-based photo-sensitizers from type II photoreaction to efficient type I photoreaction and vibrational relaxation-induced photothermal conversion. These features enable the obtained nanostructured phthalocyanine assemblies (e.g., NanoPcAF) to display excellent phototherapies under both normoxic and hypoxic conditions. Moreover, NanoPcAF has a high level of accumulation in tumor tissues after intravenous injection, and 94% of tumor growth is inhibited in a preclinical model at a NanoPcAF dose of 0.8 nmol g(-1) and light dose of 300 J cm(-2).
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JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
ISSN: 0002-7863
Year: 2021
Issue: 34
Volume: 143
Page: 13980-13989
1 6 . 3 8 3
JCR@2021
1 4 . 5 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
ESI HC Threshold:117
JCR Journal Grade:1
CAS Journal Grade:1
Cited Count:
WoS CC Cited Count: 166
SCOPUS Cited Count: 63
ESI Highly Cited Papers on the List: 9 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 0
Affiliated Colleges: