This work reports on the synthesis and amide bond linkage of carboxylic acid functionalized asymmetric zinc phthalocyanine (ZnPc) complexes to amino magnetic nanoparticles (AMNPs). The work further compares the photophysical and photochemical parameters of the Pc complexes alone with the linked to form ZnPc-AMNPs with further relation to the type of the spacer between the Pc and the AMNPs. Infrared
Encapsulating pH-Responsive Doxorubicin-Phthalocyanine Conjugates in Mesoporous Silica Nanoparticles for Combined Photodynamic Therapy and Controlled Chemotherapy
作者:Roy C. H. Wong、Dennis K. P. Ng、Wing-Ping Fong、Pui-Chi Lo
DOI:10.1002/chem.201703188
日期:2017.11.21
Doxorubicin (Dox) was conjugated to a zinc(II) phthalocyanine (ZnPc) and then anchored to mesoporous silica. The chemocytotoxic Dox released under acidic conditions together with singlet oxygen generated upon irradiation on the encapsulated ZnPc could killcancercellseffectively. The nanoparticles function as both nanophotosensitizers for photodynamic therapy and as nanoplatforms for pH-controlled drug release
Asymmetrically substituted metal-phthalocyanine compounds are disclosed. These compounds and other phthalo-cyanine-derivatives are used in bioimaging, bioanalysis, FRET and quenching techniques, photodynamic therapy, DNA analysis for cells, proteins, tissues and other biological entities, and other applications. Near-infrared fluorescence minimizes matrix effects typically seen in other methods of analyzing biochemical entities in cells, proteins, tissues and other biological entities.
Three novel asymmetrical substituted phthalocyaninecobalt with nitro and (4-butyl formate) phenoxy, (4-propenyl-2-methoxy) phenoxy or (4-methyl formate) phenoxy as different bulky peripheral groups (CoPcNO2-OBFPh, CoPcNO2-OPMPh, CoPcNO2-OMFPh) are successfully developed and applied as dopant-free hole-transporting materials (HTMs) in perovskite solar cells (PSCs). The impact of the different peripheral groups on properties of these phthalocyanines is also investigated. For the modification of bulky aroxy peripheral groups, all of the three metallophthalocyanines exhibit good solubility, suitable hole mobility, high thermal stability, and appropriate HOMO and LUMO energy levels. The most effective device based on CoPcNO2-OBFPh demonstrates an impressive power conversion efficiency (PCE) of 13.91% under AM 1.5G standard conditions, while CoPcNO2-OPMPh and CoPcNO2-OMFPh devices exhibit relative lower PCE of 11.81% and 9.47% respectively. In addition, CoPcNO2-OBFPh-based PSC shows the best stability after 1008 h in air with 50% relative humidity at room temperature.