Results 31 to 40 of about 148,723 (351)

Evaluation of the correlation between porphyrin accumulation in cancer cells and functional positions for application as a drug carrier

Scientific Reports, 2021
Porphyrin derivatives accumulate selectively in cancer cells and are can be used as carriers of drugs. Until now, the substituents that bind to porphyrins (mainly at the meso-position) have been actively investigated, but the effect of the functional ...
Koshi Nishida, Toshifumi Tojo, Takeshi Kondo, Makoto Yuasa   +3 more
doaj   +1 more source

Porphyrin Hetero-Trimer Involving a Hydrophilic and a Hydrophobic Structure with Application in the Fluorescent Detection of Toluidine Blue

Chemosensors, 2022
The combination of a metallated porphyrin, Pt(II)-5,10,15,20-tetrakis-(4-allyloxyphenyl)-porphyrin (Pt-allyloxyPP), and a water-soluble porphyrin, 5,10,15,20-tetrakis(4-sulfonatophenyl)-porphyrin (TSPP), leads to the formation of a porphyrin hetero ...
Anca Lascu, Camelia Epuran, Ion Fratilescu, Mihaela Birdeanu, Liliana Halip, Eugenia Fagadar-Cosma   +5 more
doaj   +1 more source

Thermodynamic Self Assembly of Two-Dimensional pi-Conjugated Metal-Porphyrin Covalent Organic Frameworks by On-Site Equilibrium Polymerization [PDF]

Journal of Nanoscience and Nanotechnology, Volume 14, Number 3, March 2014 , pp. 2211-2216(6), 2013
Two dimensional pi conjugated metal porphyrin covalent organic frameworks were produced in aqueous solution on an iodine-modified Au(111) surface by on site azomethine coupling of Fe(III) 5,10,15,20 tetrakis(4 aminophenyl)porphyrin (FeTAPP) with terephthal dicarboxaldehyde and investigated in detail using in-situ scanning tunneling microscopy.
arxiv   +1 more source

Electron-transport properties of ethyne-bridged diphenyl zinc-porphyrin molecules [PDF]

Jpn. J. Appl. Phys. 54 055201 (2015), 2015
We investigate the electron-transport properties of ethyne-bridged diphenyl zinc-porphyrin molecules suspended between gold (111) electrodes by first-principles calculations within the framework of density functional theory. It is found that the conductance of a molecular junction in which phenyl and porphyrin rings are perpendicular is reduced by ...
arxiv   +1 more source

Excited-State Dynamics Leading Either to Triplet Formation or Coordinative Expansion following Photolysis of Cu(II)-Porphyrins: A DFT, TD-DFT, Luminescence and Femtosecond Time-Resolved Absorbance Study

Molecules, 2023
The photophysical properties of Cu(II) complexes with 5,10,15,20-meso-tetrakis(phenyl)porphyrin and 5,10,15,20-meso-tetrakis(N-methylpyridium-4-yl)porphyrin are examined via the luminescence and femtosecond time-resolved absorbance methods, respectively.
Ross J. McGarry, Lazaros Varvarezos, Mary T. Pryce, Conor Long   +3 more
doaj   +1 more source

Recent Advances in Porphyrin-Based Materials for Metal Ions Detection

International Journal of Molecular Sciences, 2020
Porphyrins have planar and conjugated structures, good optical properties, and other special functional properties. Owing to these excellent properties, in recent years, porphyrins and their analogues have emerged as a multifunctional platform for ...
Zhenghua Qi, Yunhui Cheng, Zhou Xu, Maolong Chen   +3 more
semanticscholar   +1 more source

Porphyrin-Based Nanomaterials for the Photocatalytic Remediation of Wastewater: Recent Advances and Perspectives

Molecules
Self-organized, well-defined porphyrin-based nanostructures with controllable sizes and morphologies are in high demand for the photodegradation of hazardous contaminants under sunlight.
Nirmal Kumar Shee, Hee-Joon Kim
doaj   +1 more source

Synthesis and Spectroscopic Characterization of Some New Axially Ligated Indium(III) Macrocyclic Complexes and Their Biological Activities

Bioinorganic Chemistry and Applications, 2014
The synthesis and spectroscopic characterization of new axially ligated indium(III) porphyrin complexes were reported. Chloroindium(III) porphyrin (TPPIn-Cl) was obtained in good yield by treating the corresponding free base with indium trichloride. The
Gauri D. Bajju, Altaf Ahmed, Deepmala Gupta, Ashu Kapahi, Gita Devi   +4 more
doaj   +1 more source

ANTIPHAGE ACTIVITY OF ASYMMETRICALLYSUBSTITUTED PYRIDYLPORPHYRINS

Mìkrobìologìâ ì Bìotehnologìâ, 2013
Aim. Study of the new synthetic asymmetrically-substituted porphyrins antiviral properties with the use of bacteriophages as model viruses. Materials and methods.
Н. С. Водзінська, Б. М. Галкін, С. В. Водзінський, Т. О. Філіпова   +3 more
doaj   +1 more source

meso-5,15-Bis[3-(isopropylidenegalactopyranoxy)phenyl]-10,20-bis(4-methylphenyl)porphyrin

IUCrData
The crystal structure of a glycosylated porphyrin (P_Gal2) system, C70H70N4O12, where two isopropylidene protected galactose moieties are attached to the meso position of a substituted tetraaryl porphyrin is reported.
Mickey Vinodh, Fatemeh H. Alipour, Talal F. Al-Azemi   +2 more
doaj   +1 more source