85857-14-3Relevant academic research and scientific papers
Phosphoniumyl cationic porphyrins Self-aggregation origin from π-π and cation-π interactions
Jin, Ren-Hua,Aoki, Shinya,Shima, Kensuke
, p. 3945 - 3953 (1997)
The electrospectroscopic properties of four cationic porphyrins possessing phosphoniums residues in the periphery of the porphyrin plane are investigated in aqueous and organic solvent phases. The electronic spectra of the phosphoniumyl porphyrins in pure
Highly luminescent, biocompatible ytterbium(iii) complexes as near-infrared fluorophores for living cell imaging
Ning, Yingying,Tang, Juan,Liu, Yi-Wei,Jing, Jing,Sun, Yuansheng,Zhang, Jun-Long
, p. 3742 - 3753 (2018)
Herein, we report the design and synthesis of biocompatible Yb3+ complexes for near-infrared (NIR) living cell imaging. Upon excitation at either the visible (Soret band) or red region (Q band), these β-fluorinated Yb3+ complexes display high NIR luminescence (quantum yields up to 23% and 13% in dimethyl sulfoxide and water, respectively) and have higher stabilities and prolonged decay lifetimes (up to 249 μs) compared to the β-non-fluorinated counterparts. This renders the β-fluorinated Yb3+ complexes as a new class of biological optical probes in both steady-state imaging and time-resolved fluorescence lifetime imaging (FLIM). NIR confocal fluorescence images showed strong and specific intracellular Yb3+ luminescence signals when the biocompatible Yb3+ complexes were uptaken into the living cells. Importantly, FLIM measurements showed an intracellular lifetime distribution between 100 and 200 μs, allowing an effective discrimination from cell autofluorescence, and afforded high signal-to-noise ratios as firstly demonstrated in the NIR region. These results demonstrated the prospects of NIR lanthanide complexes as biological probes for NIR steady-state fluorescence and time-resolved fluorescence lifetime imaging.
Absorption and fluorescence properties of aryl substituted porphyrins in different media
Bozkurt, Serap Seyhan,Merdivan, Melek,Ayata, Sevda
experimental part, p. 574 - 577 (2010/03/25)
Absorption and fluorescence properties of aryl substituted porphyrins, 5,10,15,20-tetra-4-oxy(aceticacid)phenylporphyrin (TAPP), 5,10,15,20-tetra-(4-phenoxyphenyl) porphyrin (TPPP), 5,10,15,20-tetra-(3-bromo-4-hydroxyphenyl) porphyrin (TBHPP), and 5,10,15
A new route to water soluble porphyrins: Phosphonium and ammonium type cationic porphyrins and self-assembly
Jin, Ren-Hua,Aoki, Shinya,Shima, Kensuke
, p. 1939 - 1940 (2007/10/03)
From a precursor porphyrin, tetrakis(p-chloromethylphenyl)porphyrin, the novel phosphoniumyl and ammoniumyl cationic porphyrins are synthesized, and the unusual spontaneous assembly for the two cationic porphyrins is discussed.
Synthesis and preliminary DNA-interaction studies of a new cationic porphyrin
Robic,Bied-Charreton,Perree-Fauvet,Verchere-Beaur,Salmon,Gaudemer,Pasternak
, p. 4739 - 4742 (2007/10/02)
A new water-soluble porphyrin containing benzyl-trimethylammonium groups was synthesized in a two-step sequence from tetraphenylporphyrin and preliminary studies show that it binds strongly to DNA in an outside manner and gives fairly stable complexes with nucleotides and nucleosides.
