scholarly journals The Synthesis of Stable Platinum Nanoparticles in the Microreactor

2014 ◽  
Vol 59 (2) ◽  
pp. 509-512 ◽  
Author(s):  
M. Luty-Błocho ◽  
M. Wojnicki ◽  
J. Grzonka ◽  
K.J. Kurzydłowski
Keyword(s):  
Vitamin C ◽  
Platinum Nanoparticles ◽  
Redox Reaction ◽  
Batch Reactor ◽  
Environmentally Friendly ◽  
Biocompatible Polymers ◽  
Nucleation Stage ◽  
Alternative Method ◽  
Nanoparticles Synthesis ◽  
Platinum Recovery

Abstract In this work, the synthesis of the spherical clusters containing 3-4 nm platinum nanoparticles enclosed in a polymer capsule is described. The process of nanoparticles formation was intensified by using a microreactor. The application of microreactor enabled us to shorten the time of redox reaction and nucleation stage up to 6 seconds at 105°C in comparison with the process carried out in a batch reactor at 40°C. Using Vitamin C as a bio-reducer of platinum(IV) complexes and biocompatible polymers, the products non-toxic and environmentally friendly, stable for at least 9 months, were obtained. Presented procedure for nanoparticles synthesis seems to be an alternative method for platinum recovery from solutions containing platinum(IV) chloride complexions.

Review on platinum nanoparticles: synthesis, characterization, and applications

2021 ◽  
pp. 106840
Author(s):  
Md. Abu Rayhan Khan ◽  
Muhammad Shamim Al Mamun ◽  
Mosummath Hosna Ara
Keyword(s):  
Platinum Nanoparticles ◽  
Nanoparticles Synthesis

scholarly journals Small (<5 nm), Clean, and Well‐Structured Cubic Platinum Nanoparticles: Synthesis and Electrochemical Characterization

2020 ◽  
Vol 8 (1) ◽  
pp. 49-52
Author(s):  
Rodolfo M. Antoniassi ◽  
Heiki Erikson ◽  
Jose Solla‐Gullón ◽  
Roberto M. Torresi ◽  
Juan M. Feliu
Keyword(s):  
Platinum Nanoparticles ◽  
Electrochemical Characterization ◽  
Nanoparticles Synthesis

Periodate Titration of Fe(II) in Acid Aqueous Solutions: An Environmentally Friendly Redox Reaction for the Undergraduate Laboratory

1997 ◽  
Vol 2 (4) ◽  
pp. 1-7 ◽  
Author(s):  
THOMAS G. DRUMMOND ◽  
WILLIAM L. LOCKHART ◽  
SPENCER J. SLATTERY ◽  
FAROOQ A. KHAN ◽  
ANDREW J. LEAVITT
Keyword(s):  
Aqueous Solutions ◽  
Redox Reaction ◽  
Environmentally Friendly ◽  
Undergraduate Laboratory

Switching wormlike micelles of selenium-containing surfactant using redox reaction

Soft Matter ◽  
2015 ◽  
Vol 11 (38) ◽  
pp. 7469-7473 ◽  
Author(s):  
Yongmin Zhang ◽  
Weiwei Kong ◽  
Cheng Wang ◽  
Pengyun An ◽  
Yun Fang ◽  
...  
Keyword(s):  
Vitamin C ◽  
Anionic Surfactant ◽  
Redox Reaction ◽  
Wormlike Micelles ◽  
Aggregate Morphology

Wormlike micelles based on a selenium-containing surfactant and a commercially anionic surfactant reversibly respond to H2O2 and vitamin C, and show circulatory gel/sol transition, reflecting changes in aggregate morphology from entangled worms to vesicles.

Enhancement of the reduction efficiency of soluble starch for platinum nanoparticles synthesis

2012 ◽  
Vol 357 ◽  
pp. 90-97 ◽  
Author(s):  
Duangta Tongsakul ◽  
Kanet Wongravee ◽  
Chuchaat Thammacharoen ◽  
Sanong Ekgasit
Keyword(s):  
Platinum Nanoparticles ◽  
Soluble Starch ◽  
Nanoparticles Synthesis ◽  
Reduction Efficiency

scholarly journals Back Cover: Synthesis Mechanism and Influence of Light on Unprotected Platinum Nanoparticles Synthesis at Room Temperature (ChemNanoMat 2/2016)

ChemNanoMat ◽  
2016 ◽  
Vol 2 (2) ◽  
pp. 150-150
Author(s):  
Laura Kacenauskaite ◽  
Andreas Abildgaard Swane ◽  
Jacob Judas Kain Kirkensgaard ◽  
Michael Fleige ◽  
Sebastian Kunz ◽  
...  
Keyword(s):  
Platinum Nanoparticles ◽  
Room Temperature ◽  
Synthesis Mechanism ◽  
Back Cover ◽  
Nanoparticles Synthesis

scholarly journals One-electron oxidation of ergothioneine and analogues investigated by pulse radiolysis: redox reaction involving ergothioneine and vitamin C

1996 ◽  
Vol 315 (2) ◽  
pp. 625-629 ◽  
Author(s):  
Klaus-Dieter ASMUS ◽  
René V. BENSASSON ◽  
Jean-Luc BERNIER ◽  
Raymond HOUSSIN ◽  
Edward J. LAND
Keyword(s):  
Oxidative Stress ◽  
Vitamin E ◽  
Vitamin C ◽  
Redox Reaction ◽  
Redox Reactions ◽  
Pulse Radiolysis ◽  
Antioxidant Properties ◽  
Transient Species ◽  
Rapid Reduction ◽  
The One

Redox reactions of endogenous and exogenous sulphur-containing compounds are involved in protection against oxidative damage arising from the incidence and/or treatment of many diseases, including cancer. We have investigated, via pulse radiolysis, the one-electron oxidation of ergothioneine, a molecule with antioxidant properties which is detected at millimolar concentrations in certain tissues and fluids subject to oxidative stress, including erythrocytes and plasma. The spectrum of the transient species, assigned to the product of one-electron oxidation, observed after reaction of ergothioneine with the oxidizing radicals OH•, N3• and CCl3O2• has a maximum absorption at 520 nm and is very similar to that obtained by oxidation of analogous molecules such as 2-mercaptoimidazole, 1-methyl-2-mercaptoimidazole, S-methyl- and S,N-dimethyl-ergothioneine. In the presence of vitamin C, the oxidized form of ergothioneine is repaired by a rapid reduction (k = 6.3×108 M-1·s-1) producing ascorbyl radicals. This co-operative interaction between ergothionine and ascorbate, similar to that previously observed between vitamin E and ascorbate, may contribute to essential biological redox protection.

1.7 nm Platinum Nanoparticles: Synthesis with Glucose Starch, Characterization and Catalysis

ChemPhysChem ◽  
2010 ◽  
Vol 11 (13) ◽  
pp. 2844-2853 ◽  
Author(s):  
Christian Engelbrekt ◽  
Karsten Holm Sørensen ◽  
Teis Lübcke ◽  
Jingdong Zhang ◽  
Qingfeng Li ◽  
...  
Keyword(s):  
Platinum Nanoparticles ◽  
Nanoparticles Synthesis
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