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Enhancing the gas sensitivity of surface plasmon resonance with a nanoporous silica matrix.
Berrier A, et al.
Sens. Actuators, 160(1), 181-188 (2011)
Xiwen Li et al.
The journal of physical chemistry. B, 111(17), 4342-4348 (2007-04-06)
J-aggregates of the diacid form of tetra(p-hydroxyphenyl)porphyrin (THPP) were found to be stable in nonionic micellar solution in the presence of trace ionic surfactant with an oxyacid headgroup. The excitation energy of exciton coupling depends systematically on the headgroups of
Li-Ming Zhang et al.
Nucleic acids research, 47(6), 2727-2738 (2019-02-05)
Specific G-quadruplex-probing is crucial for both biological sciences and biosensing applications. Most reported probes are focused on fluorescent or colorimetric recognition of G-quadruplexes. Herein, for the first time, we reported a new specific G-quadruplex-probing technique-resonance light scattering (RLS)-based ratiometric recognition.
Yvette Niamien Konan et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 55(1), 115-124 (2003-01-29)
A photosensitizer, meso-tetra(4-hydroxyphenyl)porphyrin, was incorporated into sub-150 nm nanoparticles using the emulsification-diffusion technique in order to perform sterilization by filtration using 0.22 microm membranes. The three selected polyesters (poly(D,L-lactide-co-glycolide), (50:50 PLGA, 75:25 PLGA) and poly(D,L-lactide (PLA)) for the nanoparticle production
Iodinated hydroxyphenyl and hydroxynaphthyl porphyrins as tumour localisers.
G D Zanelli et al.
British journal of cancer, 61(5), 687-688 (1990-05-01)
R Bonnett et al.
The Biochemical journal, 261(1), 277-280 (1989-07-01)
Four new hydroporphyrins [the o, m and p isomers of 5,10,15,20-tetra(hydroxyphenyl)chlorin and 5,10,15,20-tetra(m-hydroxyphenyl)bacteriochlorin] related to the tetra(hydroxyphenyl)porphyrins have been prepared. They show the expected strong absorption bands in the red region of the visible spectrum and are found to be
Yanli Quan et al.
The Analyst, 137(4), 944-952 (2011-12-21)
A novel idea on the basis of 5,10,15,20-tetrakis(4-hydroxyphenyl)porphyrin (THPP) functionalized carbon nanotubes (CNTs) film was developed to simulate the chromatographic separation, which was able to rapidly and simultaneously detect dihydroxybenzene isomers based on their different oxidation potentials and corresponding currents.
P Ziółkowski et al.
Patologia polska, 41(4), 187-192 (1990-01-01)
Results of investigation of para-tetra-hydroxyphenyl-porphyrin and red light on treatment of kidney clear cell carcinoma in Wistar rats have been assessed. Positive influence of photodynamic therapy was confirmed.
M C Berenbaum et al.
British journal of cancer, 54(5), 717-725 (1986-11-01)
We compared para-, meta- and ortho-isomers of meso-tetra(hydroxyphenyl)porphyrin (p-, m- and o-THPP) and the potassium salt of the para compound (K-p-THPP) with haematoporphyrin derivative (HpD) and Photofrin II in their ability to sensitise tumours, skin and brain to light. HpD
F Fischer et al.
Clinica chimica acta; international journal of clinical chemistry, 274(1), 89-104 (1998-07-29)
Uric acid a known singlet oxygen scavenger, was investigated as a chemical dosimeter in physiological aqueous solution for use in photodynamic therapy. The uric acid test takes the decrease in uric acid (UA) absorbance at 293 nm after laser light
Chirality amplification of porphyrin assemblies exclusively constructed from achiral porphyrin derivatives.
Chen P, et al.
ChemPhysChem, 7(11), 2419-2423 (2006)
Kinga Nawalany et al.
International journal of pharmaceutics, 430(1-2), 129-140 (2012-04-25)
Photosensitizing properties of 5,10,15,20-tetrakis(4-hydroxyphenyl)porphyrin (p-THPP) functionalized by covalent attachment of one chain of poly(ethylene glycol) (PEG) with a molecular weight of 350, 2000, or 5000 Da (p-THPP-PEG(350), p-THPP-PEG(2000), p-THPP-PEG(5000)) were studied in vitro. Dark and photo cytotoxicity of these photosensitizers
Kinga Nawalany et al.
The journal of physical chemistry. B, 112(39), 12231-12239 (2008-09-09)
5,10,15,20-Tetrakis(4-hydroxyphenyl)porphyrin was functionalized by covalent attachment of poly(ethylene glycol) (PEG) chains of various molecular weights, 350, 2000, and 5000 Da. The properties of PEG-functionalized tetraarylporphyrins in aqueous solution and their interactions with liposomes have been studied. Electronic absorption spectroscopy, dynamic
Detection of water?soluble vitamins by matrix?assisted laser desorption/ionization time?of?flight mass spectrometry using porphyrin matrices.
Chen YT and Ling YC
Journal of Mass Spectrometry : Jms, 37(7), 716-730 (2002)
Sasivimon Pramual et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 149, 218-228 (2020-03-01)
Multidrug resistance (MDR) and the spread of cancer cells (metastasis) are major causes leading to failure of cancer treatment. MDR can develop in two main ways, with differences in their mechanisms for drug resistance, first drug-selected MDR developing after chemotherapeutic
Tingxiao Qin et al.
Chemistry, an Asian journal, 12(13), 1578-1586 (2017-05-10)
G-rich and C-rich DNA can fold into the tetrastranded helical structures G quadruplex or C quadruplex (i-motif), which are considered to be specific drug targets for cancer therapy. A large number of small molecules (so-called ligands), which can bind and
Prunier ML
Catalysis of Organic Reactions null
Yvette Niamien Konan et al.
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 18(3-4), 241-249 (2003-03-28)
A photosensitizer, meso-tetra(hydroxyphenyl)porphyrin (p-THPP) was incorporated into sterile submicronic nanoparticles of poly(D,L-lactide-co-glycolide) (50:50 and 75:25 PLGA) and poly(D,L-lactide) (PLA). With all polymers used, sub-130 nm p-THPP-loaded nanoparticles with similar drug loadings and entrapment efficiencies were produced using the emulsification-diffusion technique.
Giovanna De Luca et al.
The journal of physical chemistry. B, 110(29), 14135-14141 (2006-07-21)
Acidification of tetrakis(4-hydroxyphenyl)porphyrin (THPP) and tetrakis(3,5-dihydroxyphenyl)porphyrin (OHPP) in dichloromethane solutions has been investigated as a function of the nature of the counteranion. These porphyrins exhibit different patterns of behavior, and extended aggregates are formed displaying broad extinction features together with
Anna Synak et al.
The journal of physical chemistry. B, 114(49), 16567-16573 (2010-11-26)
The relaxation dynamics of 5,10,15,20-tetrakis(4-hydroxyphenyl)-porphyrin (p-THPP) in tetrahydrofuran (THF) and encapsulated within the human serum albumin (HSA) protein in water solution was investigated. The protein environment affects the B→Q(y) and Q(x)→Q(y) transition dynamics (from 80 and 140-200 fs in THF
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