1310562-48-1Relevant articles and documents
Polymeric Encapsulation of Novel Homoleptic Bis(dipyrrinato) Zinc(II) Complexes with Long Lifetimes for Applications as Photodynamic Therapy Photosensitisers
Karges, Johannes,Basu, Uttara,Blacque, Olivier,Chao, Hui,Gasser, Gilles
, p. 14334 - 14340 (2019)
The use of photodynamic therapy (PDT) to treat cancer has received increasing attention over the last years. However, the clinically used photosensitisers (PSs) have some limitations that include poor aqueous solubility, hepatotoxicity, photobleaching, aggregation, and slow clearance from the body, so the design of new classes of PSs is of great interest. We present the use of bis(dipyrrinato)zinc(II) complexes with exceptionally long lifetimes as efficient PDT PSs. Based on the heavy-atom effect, intersystem crossing of these complexes changes the excited state from singlet to a triplet state, thereby enabling singlet oxygen generation. To overcome the limitation of quenching effects in water and improve water solubility, the lead compound 3 was encapsulated in a polymer matrix. It showed impressive phototoxicity upon irradiation at 500 nm in various monolayer cancer cells as well as 3D multicellular tumour spheroids, without observed dark toxicity.
Highly efficient BODIPY-doped upconversion nanoparticles for deep-red luminescence bioimagingin vivo
Jia, Ti,Wang, Qiuhong,Xu, Ming,Yuan, Wei,Feng, Wei,Li, Fuyou
supporting information, p. 1518 - 1521 (2021/02/21)
We demonstrate a 3,5-di(p-oxethyl)styryl conjugated BODIPY showing deep-red upconversion luminescence with a high efficiency of 16.6%. Furthermore, water-soluble BODIPY-doped upconversion nanoparticles with efficiency up to 6.9% under low excitation power
Catalyst Halogenation Enables Rapid and Efficient Polymerizations with Visible to Far-Red Light
Stafford, Alex,Ahn, Dowon,Raulerson, Emily K.,Chung, Kun-You,Sun, Kaihong,Cadena, Danielle M.,Forrister, Elena M.,Yost, Shane R.,Roberts, Sean T.,Page, Zachariah A.
supporting information, p. 14733 - 14742 (2020/10/13)
The driving of rapid polymerizations with visible to near-infrared light will enable nascent technologies in the emerging fields of bio- and composite-printing. However, current photopolymerization strategies are limited by long reaction times, high light
Dipyrrin type rare earth metal complex, preparation method and application
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Paragraph 0120; 0122, (2018/05/16)
The invention relates to a dipyrrin type rare earth metal complex, a preparation method and application, and belongs to the technical field of catalysts. The dipyrrin type rare earth metal complex hashigher catalysis activity and selectivity, and fluoresc
A reaction-based chromogenic and fluorescent chemodosimeter for fluoride anions
Fu, Li,Jiang, Feng-Lei,Fortin, Daniel,Harvey, Pierre D.,Liu, Yi
supporting information; experimental part, p. 5503 - 5505 (2011/06/21)
An innovative trihexylsilylacetylene-containing BODIPY dye was designed and proved to be a highly selective, sensitive, and fast chromogenic and fluorescent chemodosimeter for fluorides.
Synthesis, photophysical, electrochemical, and electrogenerated chemiluminescence studies. multiple sequential electron transfers in BODIPY monomers, dimers, trimers, and polymer
Nepomnyashchii, Alexander B.,Broering, Martin,Ahrens, Johannes,Bard, Allen J.
experimental part, p. 8633 - 8645 (2011/07/29)
Synthesis of the C8 BODIPY monomers, dimers, and trimers, a C8 polymer, and N8 aza-BODIPY monomer and dimer was carried out. Methyl and mesityl C8-substituted monomers, dimers, and trimers were used. Dimers, trimers, and polymer were formed chemically through the β-β (2/6) positions by oxidative coupling using FeCl3. A red shift of the absorbance and fluorescence is observed with addition of monomer units from monomer to polymer for C8 dyes. The aza-BODIPY dye shows red-shifted absorbance and fluorescence compared with the C8 analogue. Cyclic voltammetry shows one, two, and three one-electron waves on both reduction and oxidation for the monomer, dimer, and trimer, respectively, for the C8 BODIPYs. The separation for the reduction peaks for the C8 dimers is 0.12 V compared with 0.22 V for the oxidation, while the trimers show separations of 0.09 V between reduction peaks and 0.13 V for oxidation peaks. The larger separations between the second and third peaks, 0.25 V for the oxidation and 0.2 V for the reduction, are consistent with a larger energy to remove or add a third electron compared with the second one. The BODIPY polymer shows the presence of many sequential one-electron waves with a small separation. These results provide evidence for significant electronic interactions between different monomer units. The aza-BODIPY dye shows a reduction peak 0.8 V more positive compared to the C8 compound. Aza-BODIPY dimer shows the appearance of four waves in dichloromethane. The separation between two consecutive waves is around 0.12 V for reduction compared with 0.2 V for oxidation, which is comparable with the results for the C 8 dyes. Electrogenerated chemiluminescence (ECL) of the different species was obtained, including weak ECL of the polymer.
