The influence of amphiphilic polymers on the photocatalytic activity of water-soluble porphyrin photosensitizers

2011 ◽  
Vol 85 (5) ◽  
pp. 871-875 ◽  
Author(s):  
Yu. A. Gorokh ◽  
N. A. Aksenova ◽  
A. B. Solov’eva ◽  
V. A. Ol’shevskaya ◽  
A. V. Zaitsev ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Amphiphilic Polymers ◽  
Water Soluble ◽  
Porphyrin Photosensitizers ◽  
Water Soluble Porphyrin

scholarly journals Effect of Chitosan on the Activity of Water-Soluble and Hydrophobic Porphyrin Photosensitizers Solubilized by Amphiphilic Polymers

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1007
Author(s):  
Valeriya V. Kardumyan ◽  
Nadejda A. Aksenova ◽  
Victoria A. Timofeeva ◽  
Alexey V. Krivandin ◽  
Olga V. Shatalova ◽  
...  
Keyword(s):  
Inhibitory Effect ◽  
Amphiphilic Polymers ◽  
Model Reaction ◽  
Amphiphilic Polymer ◽  
Water Soluble ◽  
Pluronic F127 ◽  
Polymer Systems ◽  
Photo Oxidation ◽  
Porphyrin Photosensitizers ◽  
Trisodium Salt

In this work, we studied the photocatalytic activity of photosensitizers (PSs) of various natures solubilized with polyvinylpyrrolidone (PVP) and ternary block copolymer ethylene and propylene oxide Pluronic F127 (F127) in a model reaction of tryptophan photo-oxidation in water in the presence of chitosan (CT). Water-soluble compounds (dimegin and trisodium salt of chlorin e6 (Ce6)) and hydrophobic porphyrins (tetraphenylporphyrin (TPP) and its fluorine derivative (TPPF20)) were used as PSs. It was shown that the use of chitosan (Mw ~100 kDa) makes it possible to obtain a system whose activity is comparable to that of the photosensitizer-amphiphilic polymer systems. Thus, the previously observed drop in the photosensitizing activity of PS in the presence of a polysaccharide and amphiphilic polymers (AP) was absent in this case. At the same time, chitosan had practically no inhibitory effect on hydrophobic porphyrins solubilized by Pluronic F127.

Effect of amino-containing polymers on the photocatalytic activity of water-soluble porphyrin sensitizers

2007 ◽  
Vol 416 (1) ◽  
pp. 205-206
Author(s):  
N. N. Glagolev ◽  
N. A. Aksenova ◽  
S. Z. Rogovina ◽  
A. B. Solov’eva
Keyword(s):  
Photocatalytic Activity ◽  
Water Soluble ◽  
Water Soluble Porphyrin

scholarly journals Self-assembly of porphyrin on graphene oxide in aqueous medium: fabrication, characterization, and photocatalytic studies

2019 ◽  
Vol 18 (8) ◽  
pp. 2071-2079 ◽  
Author(s):  
Nagi El-Shafai ◽  
Mohamed E. El-Khouly ◽  
Maged El-Kemary ◽  
Mohamed S. Ramadan ◽  
Mamdouh S. Masoud
Keyword(s):  
Photocatalytic Activity ◽  
Graphene Oxide ◽  
Visible Light ◽  
Aqueous Medium ◽  
Visible Light Irradiation ◽  
Self Assembly ◽  
High Photocatalytic Activity ◽  
Water Soluble ◽  
Dye Pollutants ◽  
Water Soluble Porphyrin

We reported herein the supramolecular self-assembly of a water soluble porphyrin TMPyP on the surface of graphene oxide and its high photocatalytic activity for degradation of mixed dye pollutants in water under visible light irradiation.

Heavy atom effect on water-soluble porphyrin photosensitizers for photodynamic therapy

2021 ◽  
Vol 784 ◽  
pp. 139091
Author(s):  
Yanyan Li ◽  
Guichen Li ◽  
Qian zhang ◽  
Yuxia Li ◽  
Qifan Jia ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Heavy Atom ◽  
Water Soluble ◽  
Heavy Atom Effect ◽  
Porphyrin Photosensitizers ◽  
Water Soluble Porphyrin ◽  
Atom Effect

Water-soluble porphyrin as temperature sensor based on fluorescent enhancement

2014 ◽  
Vol 30 (3) ◽  
pp. 379-382 ◽  
Author(s):  
Qiang Fei ◽  
Chunyu Wang ◽  
Baojun Wang ◽  
Hui Xu ◽  
Guanghua Li ◽  
...  
Keyword(s):  
Temperature Sensor ◽  
Water Soluble ◽  
Water Soluble Porphyrin

Excited-state properties of water-soluble porphyrin dimers

1986 ◽  
Vol 130 (6) ◽  
pp. 555-559 ◽  
Author(s):  
U. Hofstra ◽  
R.B.M. Koehorst ◽  
T.J. Schaafsma
Keyword(s):  
Excited State ◽  
Water Soluble ◽  
Water Soluble Porphyrin ◽  
Porphyrin Dimers

Hydrothermal Synthesis of Nanosized Titania Photocatalysts Using Novel Water-Soluble Titanium Complexes

2007 ◽  
Vol 124-126 ◽  
pp. 723-726 ◽  
Author(s):  
Makoto Kobayashi ◽  
Koji Tomita ◽  
Valery Petrykin ◽  
Shu Yin ◽  
Tsugio Sato ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Specific Surface ◽  
Single Phase ◽  
Visible Region ◽  
Water Soluble ◽  
No Oxidation ◽  
Nano Particles ◽  
Titanium Complexes ◽  
Uv Visible

Highly crystalline titania nano-particles were synthesized by hydrothermal method using novel stable water-soluble titanium complexes. It was confirmed that single phase anatase, rutile and brookite, which can be rarely synthesized as a single phase, can be obtained by varying the ligand in the complex and pH of the aqueous solution. TEM observations and BET specific surface area measurements had shown that these samples consisted of nanosized particles of 5~200 nm and had high specific surface areas of 25~150 m2/g. According to UV-visible diffuse reflectance spectra, these titania samples absorbed light in the visible region (λ > 400 nm). Photocatalytic activities in NO oxidation reaction exhibited by synthesized titania powders under the irradiation by UV- visible light were higher than the activity of the commercial TiO2 photocatalyst P25 (Degussa). Especially, under illumination by only visible light of above 510 nm wavelength, photocatalytic activity of the obtained specimens exceeded that of P25 more than four times. We also clearly demonstrated that single phase brookite had high photocatalytic activity for NO oxidation.

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