Versatile thin layer spectroelectrochemical cell employing specular reflectance

1987 ◽  
Vol 65 (5) ◽  
pp. 919-923 ◽  
Author(s):  
A. Scott Hinman ◽  
Brad J. Pavelich
Keyword(s):  
Thin Layer ◽  
Specular Reflection ◽  
Incident Light ◽  
Tetrabutylammonium Perchlorate ◽  
Specular Reflectance ◽  
Advantages And Disadvantages ◽  
Ftir Characterization ◽  
Sandwich Type

A versatile thin layer spectroelectrochemical cell employing specular reflection of the incident light beam from the electrode surface is described. Its application to in-situ uv–vis and FTIR characterization of the products of electrochemical reactions and to thin layer voltammetry and coulometry as well as conventional cyclic voltammetry is demonstrated for the oxidation of tetraphenylporphinatozinc in dichloroethane/tetrabutylammonium perchlorate solution. The advantages and disadvantages of this type of cell as compared to more conventional sandwich type optically transparent thin layer electrodes are discussed.

Synthesis of sandwich type acyclic tetra-nuclear silver(I)-N-heterocyclic carbene complexes for wound healing applications

2020 ◽  
Vol 75 (9-10) ◽  
pp. 369-376
Author(s):  
Ayesha Riaz ◽  
Muhammad Adnan Iqbal ◽  
Haq Nawaz Bhatti ◽  
Muhammad Shahid
Keyword(s):  
Alkyl Halides ◽  
Wound Contraction ◽  
Spectroscopic Techniques ◽  
Open Chain ◽  
Standard Drug ◽  
Sandwich Type ◽  
Benzimidazolium Salts ◽  
Multistep Reaction

AbstractTwo meta-xylyl linked tetrakis-benzimidazolium salts (L1-L2) as multidentate ligands and two respective silver complexes (C1 and C2) were synthesized. A multistep reaction was done at room temperature, starting with simple benzimidazole and alkyl halides, going through precursors and salt formation by reflux and finally in situ deprotonation of tetrabenzimidazolium salts with Ag2O to yield respective tetra-nuclear Ag(I)-N-heterocyclic Carbene (NHC) complexes. Propyl and butyl groups were bonded at the terminal positions of tetra-azolium open chain salts. Characterization of compounds was done by analytical and spectroscopic techniques. On the basis of spectroscopic data, a chemical structure with open chains having four Ag(I) ions sandwiched between NHC layers was established. Potential of synthesized complexes (C1 & C2) for wound contraction was evaluated and compared with standard wound contraction gel. Percentage wound contraction of both complexes was found very close to that of standard drug used in parallel.

In situ FTIR characterization of the adsorption of CO and its reaction with NO on Pd-based FCC low NOx combustion promoters

2007 ◽  
Vol 127 (1-4) ◽  
pp. 189-198 ◽  
Author(s):  
Oleg S. Alexeev ◽  
Sundaram Krishnamoorthy ◽  
Cody Jensen ◽  
Michael S. Ziebarth ◽  
George Yaluris ◽  
...  
Keyword(s):  
In Situ Ftir ◽  
Ftir Characterization ◽  
Low Nox Combustion ◽  
Adsorption Of Co ◽  
Combustion Promoters

In situ and ex situ FTIR characterization of a cyanate adlayer on Cu(111)

2004 ◽  
Vol 570 (1) ◽  
pp. 47-53 ◽  
Author(s):  
K Brandt ◽  
E Vogler ◽  
M Parthenopoulos ◽  
K Wandelt
Keyword(s):  
Ex Situ ◽  
Ftir Characterization

In situ CIR-FTIR characterization of salicylate complexes at the goethite/aqueous solution interface

1990 ◽  
Vol 24 (6) ◽  
pp. 822-828 ◽  
Author(s):  
Eric C. Yost ◽  
M. Isabel Tejedor-Tejedor ◽  
Marc A. Anderson
Keyword(s):  
Aqueous Solution ◽  
Solution Interface ◽  
Ftir Characterization

In situ ATR–FTIR characterization of primary cement interfaces of the barnacle Balanus amphitrite

Biofouling ◽  
2009 ◽  
Vol 25 (4) ◽  
pp. 359-366 ◽  
Author(s):  
D. E. Barlow ◽  
G. H. Dickinson ◽  
B. Orihuela ◽  
D. Rittschof ◽  
K. J. Wahl
Keyword(s):  
Balanus Amphitrite ◽  
Ftir Characterization

scholarly journals Intestinal Microbiota, the Advantages and Disadvantages of Different Methods Established for Assessing the Resident Bacterial Populations

2020 ◽  
Vol 77 (1) ◽  
pp. 1
Author(s):  
Maria Cătălina MATEI ◽  
Victoria BUZA ◽  
Laura Cristina ŞTEFĂNUŢ
Keyword(s):  
Intestinal Microbiota ◽  
Literature Study ◽  
Bacterial Populations ◽  
Advantages And Disadvantages ◽  
Cultural Methods ◽  
Golden Standard ◽  
The Right ◽  
Generation Sequencing

At the level of the gastrointestinal (GI) tract exists a consortium of living microorganisms like bacteria, fungi, protozoa and viruses, which represent the intestinal microbiota. This term, microbiota, comes from Greek, where ‘bios’ means ‘life’ and nowadays this is the right word to use, even if in the older literature the authors used the term microflora with the same meaning (Suchodolski, 2016). In order to describe the intestinal microbiota, there are more methods available, each of them having advantages and disadvantages. The aim of this literature study was to compare the data available regarding each method used for assessing the intestinal microbiota. Among the five methods available in the present to assess the intestinal microbiota, none of them is considered a gold standard. There are available cultural and non-cultural methods, each of them having the purpose to describe the intestinal resident bacterial populations. The most commonly used methods for characterization of the intestinal microbiota are represented by FISH- Fluorescence in situ hybridization, qPCR- quantitative real-time PCR, NGS- next-generation sequencing (e.g. 454- pyrosequencing, Illumine) and Metagenomics (shotgun sequencing of genomic DNA). In this review we made a comparison between the methods available for assessing the intestinal microbiota, showing that in the present there is not a golden standard for this and that the methods used have advantages and disadvantages.

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