Photochemical Reactions during Virus Inactivation of Human Plasma by Methylene Blue and Light

1995 ◽  
Vol 22 (1) ◽  
pp. 8-10
Author(s):  
K. Müller-Breitkreutz ◽  
H. Mohr
Keyword(s):  
Methylene Blue ◽  
Human Plasma ◽  
Photochemical Reactions ◽  
Virus Inactivation

Potential Involvement of Both Type I and Type II Mechanisms in M13 Virus Inactivation by Methylene Blue Photosensitization

1997 ◽  
Vol 66 (2) ◽  
pp. 204-208 ◽  
Author(s):  
H. Abe ◽  
K. Ikebuchi ◽  
S. J. Wagner ◽  
M. Kuwabara ◽  
N. Kamo ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Type I ◽  
Virus Inactivation ◽  
Type Ii ◽  
M13 Virus

scholarly journals A new type of microphotoreactor with integrated optofluidic waveguide based on solid-air nanoporous aerogels

2018 ◽  
Vol 5 (11) ◽  
pp. 180802 ◽  
Author(s):  
Yaprak Özbakır ◽  
Alexandr Jonáš ◽  
Alper Kiraz ◽  
Can Erkey
Keyword(s):  
Methylene Blue ◽  
Total Internal Reflection ◽  
Incident Light ◽  
Liquid Core ◽  
Photochemical Reactions ◽  
Point Of View ◽  
Blue Dye ◽  
New Type ◽  
Aqueous Core ◽  
Low Refractive Index

In this study, we developed a new type of microphotoreactor based on an optofluidic waveguide with aqueous liquid core fabricated inside a nanoporous aerogel. To this end, we synthesized a hydrophobic silica aerogel monolith with a density of 0.22 g cm −3 and a low refractive index of 1.06 that—from the optical point of view—effectively behaves like solid air. Subsequently, we drilled an L-shaped channel within the monolith that confined both the aqueous core liquid and the guided light, the latter property arising due to total internal reflection of light from the liquid–aerogel interface. We characterized the efficiency of light guiding in liquid-filled channel and—using the light delivered by waveguiding—we carried out photochemical reactions in the channel filled with aqueous solutions of methylene blue dye. We demonstrated that methylene blue could be efficiently degraded in the optofluidic photoreactor, with conversion increasing with increasing power of the incident light. The presented optofluidic microphotoreactor represents a versatile platform employing light guiding concept of conventional optical fibres for performing photochemical reactions.

A potentially improved approach to methylene blue virus inactivation of plasma: the Maco Pharma Maco-Tronic system

2001 ◽  
Vol 11 (1) ◽  
pp. 31-36 ◽  
Author(s):  
V. S. Hornsey ◽  
O. Drummond ◽  
D. Young ◽  
A. Docherty ◽  
C. V. Prowse
Keyword(s):  
Methylene Blue ◽  
Virus Inactivation

Photosensitized Delignification of Residual Lignin and Chemical Pulp from Eucalyptus grandis Wood

Holzforschung ◽  
2002 ◽  
Vol 56 (6) ◽  
pp. 595-600 ◽  
Author(s):  
D. Da Silva Perez ◽  
A. Castellan ◽  
A. Nourmamode ◽  
S. Grelier ◽  
R. Ruggiero ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Methylene Blue ◽  
Eucalyptus Grandis ◽  
Photochemical Reactions ◽  
Size Exclusion ◽  
Residual Lignin ◽  
Bleaching Process ◽  
Chemical Pulp ◽  
Exclusion Chromatography ◽  
Unbleached Pulp

Summary Bleached pulps were obtained from a Eucalyptus grandis peroxyformic/formic acid chemical pulp using oxygen, hydrogen peroxide, photosensitizers (methylene blue, Fe (II) 4,4′,4″,4‴-tetrasulfophthalocyanine, hemin, hematoporphyrin) and/or TiO2. Residual lignin of unbleached pulp, isolated and characterized by size exclusion chromatography, 31P NMR and thioacidolysis, was used to study the photochemical reactions occurring during the bleaching process. The main reactions were conversion of phenolic aromatic units into carboxylic acids and cleavage of the β-O-4 ether bonds leading to a depolymerization of the lignin framework into smaller fragments.

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