Effect of flavin compounds on uranium(VI) reduction- kinetic study using electrochemical methods with UV-vis spectroscopy

2017 ◽  
Vol 78 ◽  
pp. 279-286 ◽  
Author(s):  
Shinya Yamasaki ◽  
Kazuya Tanaka ◽  
Naofumi Kozai ◽  
Toshihiko Ohnuki
Keyword(s):  
Kinetic Study ◽  
Electrochemical Methods ◽  
Reduction Kinetic ◽  
Vis Spectroscopy

Expansion of the scope of alkylboryl-bridged N → B-ladder boranes: new substituents and alternative substrates

2019 ◽  
Vol 48 (27) ◽  
pp. 10298-10312 ◽  
Author(s):  
Frank Pammer ◽  
Jonas Schepper ◽  
Johannes Glöckler ◽  
Yu Sun ◽  
Andreas Orthaber
Keyword(s):  
Dft Calculations ◽  
Electrochemical Methods ◽  
Alternative Substrates ◽  
Vis Spectroscopy

A series of new boranes capable of forming intramolecular N → B-heterocycles has been prepared and their properties have been studied by electrochemical methods and UV-vis-spectroscopy complemented by DFT calculations.

Synthesis and properties of new N,N′-phenyltetrazole podand

2016 ◽  
Vol 70 (3) ◽  
Author(s):  
Agnieszka Pazik ◽  
Beata Kamińska ◽  
Anna Skwierawska ◽  
Sandra Nakonieczna ◽  
Tadeusz Ossowski
Keyword(s):  
Colour Change ◽  
Electrochemical Methods ◽  
Naked Eye ◽  
Vis Spectroscopy ◽  
Eye Colour

AbstractThe synthesis of a new chromogenic N,N′-phenyltetrazole receptor is reported here. The cationbinding properties of this receptor in solution were investigated by naked-eye colour change, electrochemical methods and UV-Vis spectroscopy in various solvents (CH

scholarly journals Stopped-Flow Kinetic Study on Intermediate of Theophylline Oxidation Reaction via Rapid-Scanning UV/VIS Spectroscopy.

1997 ◽  
Vol 13 (Supplement) ◽  
pp. 475-478 ◽  
Author(s):  
Ke ZHANG ◽  
Houping HUANG ◽  
Xinguo WU ◽  
Ruxiu CAI ◽  
Takashi KORENAGA
Keyword(s):  
Kinetic Study ◽  
Oxidation Reaction ◽  
Stopped Flow ◽  
Vis Spectroscopy ◽  
Rapid Scanning

Cell Attachment and Protein Adsorption to Polypyrrole thin Films

1992 ◽  
Vol 293 ◽  
Author(s):  
Joyce Y. Wong ◽  
Robert S. Langer ◽  
Donald E. Ingber
Keyword(s):  
Thin Films ◽  
Extracellular Matrix ◽  
Contact Angle ◽  
Protein Adsorption ◽  
Cell Attachment ◽  
Electrochemical Methods ◽  
Conductivity Measurements ◽  
Vis Spectroscopy ◽  
Extracellular Matrix Molecules

AbstractThin films of polypyrrole were synthesized using both chemical oxidative and electrochemical methods. The resulting oxidized films were characterized by UV/VIS spectroscopy, contact angle and conductivity measurements. In vitro studies suggest that extracellular matrix molecules, such as fibronectin, adsorb efficiently onto polypyrrole thin films and that 3T3 Balb/c mouse fibroblasts attach and spread normally on polypyrrole.

scholarly journals Electrochemical Methods for Evaluation of Antioxidant Properties of Propolis Extract Incorporated in Chitosan Nanoparticles

2021 ◽  
Vol 57 (4) ◽  
pp. 96-108
Author(s):  
Luminita Fritea ◽  
Paula Melania Pasca ◽  
Laurian Vlase ◽  
Ana-Maria Gheldiu ◽  
Liviu Moldovan ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
High Performance ◽  
Antioxidant Properties ◽  
Chitosan Nanoparticles ◽  
Differential Pulse ◽  
Electrochemical Methods ◽  
Propolis Extract ◽  
Vis Spectroscopy ◽  
Pulse Voltammetry ◽  
Nano Formulation

The main purpose of our study was to demonstrate the antioxidant properties of novel propolis nano-formulation, incorporated in spherical chitosan nanoparticles. The electrochemical methods (cyclic voltammetry and differential pulse voltammetry) were successfully applied to propolis extract and nanopropolis formulation, confirming that the content in phenolic acids and flavonoids is responsible for the antioxidant activity of propolis. The quantitative and qualitative results are also supported by high performance liquid chromatography (HPLC) and ultraviolet-visible (UV-Vis) spectroscopy.

Imaging molecules adsorbed onto electrodes under potential control by scanning probe microscopy

1991 ◽  
Vol 49 ◽  
pp. 376-377 ◽  
Author(s):  
N.J. Tao ◽  
J.A. DeRose ◽  
P.I. Oden ◽  
S.M. Lindsay
Keyword(s):  
Surface Charge ◽  
Environmental Effects ◽  
Scanning Probe Microscopy ◽  
Statistical Significance ◽  
Electrochemical Methods ◽  
Surface Structures ◽  
Scanning Probe ◽  
Potential Control ◽  
Afm Imaging ◽  
Special Circumstances

Clemmer and Beebe have pointed out that surface structures on graphite substrates can be misinterpreted as biopolymer images in STM experiments. We have been using electrochemical methods to react DNA fragments onto gold electrodes for STM and AFM imaging. The adsorbates produced in this way are only homogeneous in special circumstances. Searching an inhomogeneous substrate for ‘desired’ images limits the value of the data. Here, we report on a reversible method for imaging adsorbates. The molecules can be lifted onto and off the substrate during imaging. This leaves no doubt about the validity or statistical significance of the images. Furthermore, environmental effects (such as changes in electrolyte or surface charge) can be investigated easily.

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