Fabrication of an ultra-sensitive para-nitrophenol sensor based on facile Zn-doped Er2O3 nanocomposites via an electrochemical approach

2020 ◽  
Vol 12 (27) ◽  
pp. 3470-3483 ◽  
Author(s):  
Mohammed M. Rahman ◽  
Tahir Ali Sheikh ◽  
Abdullah M. Asiri ◽  
K. A. Alamry ◽  
M. A. Hasnat
Keyword(s):  
Composite Materials ◽  
Environmental Remediation ◽  
Single Step ◽  
Alkaline Ph ◽  
Nano Composite ◽  
Electrochemical Probe ◽  
Electrochemical Approach ◽  
Chemical Technique ◽  
Wet Chemical ◽  
Wet Chemical Technique

Semiconductor doped Zn-doped Er2O3 nano-composite materials were prepared via a wet-chemical technique in a single-step at alkaline pH to develop a selective and sensitive para-nitrophenol capturing electrochemical probe for environmental remediation.

scholarly journals Deposition of Cell Culture Coatings Using a Cold Plasma Deposition Method

2020 ◽  
Vol 10 (19) ◽  
pp. 6670
Author(s):  
Denis O’Sullivan ◽  
Hazel McArdle ◽  
Sing Wei Ng ◽  
Paula Bourke ◽  
Robert Forster ◽  
...  
Keyword(s):  
Thin Films ◽  
Cell Culture ◽  
Cold Plasma ◽  
Cell Activity ◽  
Single Step ◽  
Cell Culture Techniques ◽  
Culture Techniques ◽  
Chemical Technique ◽  
Wet Chemical ◽  
Wet Chemical Technique

Collagen coatings were applied onto polystyrene microplates using a cold atmospheric pressure plasma process. The coatings were compared to standard wet chemical collagen thin films using microscopy, surface energy, infra-red spectroscopy, electrophoresis, and cell culture techniques. Thin films were also deposited on gold electrodes using both coating methods and their structural and barrier properties probed using cyclic voltammetry. While the wet chemical technique produced a thicker deposit, both films appear equivalent in terms of coverage, porosity, structure, and chemistry. Significantly, the cold plasma method preserves both the primary and secondary structure of the protein and this results in high biocompatibility and cell activity that is at least equivalent to the standard wet chemical technique. The significance of these results is discussed in relation to the benefits of a single step plasma coating in comparison to the traditional multi-step aseptic coating technique.

scholarly journals d-Glucose sensor based on ZnO·V2O5 NRs by an enzyme-free electrochemical approach

RSC Advances ◽  
2019 ◽  
Vol 9 (54) ◽  
pp. 31670-31682 ◽  
Author(s):  
Mohammed M. Rahman ◽  
Mohammad Musarraf Hussain ◽  
Abdullah M. Asiri
Keyword(s):  
Zinc Oxide ◽  
Glucose Sensor ◽  
Alkaline Environment ◽  
Electrochemical Approach ◽  
Chemical Technique ◽  
Wet Chemical ◽  
Wet Chemical Technique ◽  
Vanadium Pentaoxide

A simple wet-chemical technique was used to prepare zinc oxide-doped vanadium pentaoxide nanorods (ZnO·V2O5 NRs) in an alkaline environment.

A non-enzymatic electrochemical approach for l-lactic acid sensor development based on CuO·MWCNT nanocomposites modified with a Nafion matrix

2020 ◽  
Vol 44 (23) ◽  
pp. 9775-9787 ◽  
Author(s):  
Mohammad Musarraf Hussain ◽  
Abdullah M. Asiri ◽  
Mohammed M. Rahman
Keyword(s):  
Lactic Acid ◽  
Carbon Nanotube ◽  
Copper Oxide ◽  
Basic Medium ◽  
Sensor Development ◽  
Multi Walled Carbon Nanotube ◽  
Electrochemical Approach ◽  
Chemical Technique ◽  
Wet Chemical ◽  
Wet Chemical Technique

Copper oxide decorated multi-walled carbon nanotube nanocomposites (CuO·MWCNT NCs) were prepared using a simple wet-chemical technique in basic medium.

A New Lithium Iron Phosphate LiFe2P3O10 Synthesized at 600 °C from Precursor Obtained by Wet Chemistry

2006 ◽  
Vol 972 ◽  
Author(s):  
Atmane Ait-Salah ◽  
Chintalapalle V Ramana ◽  
François Gendron ◽  
Jean-François Morhange ◽  
Alain Mauger ◽  
...  
Keyword(s):  
Lithium Iron Phosphate ◽  
Iron Phosphate ◽  
Voltage Range ◽  
Wet Chemistry ◽  
Cell Parameters ◽  
Antiferromagnetic Ordering ◽  
Chemical Technique ◽  
Wet Chemical ◽  
Wet Chemical Technique

AbstractWe present the synthesis and characterization of a novel lithium iron polyphosphate LiFe2P3O10 prepared by wet-chemical technique from nitrate precursors. The crystal system is shown to be monoclinic (P21/m space group) and the refined cell parameters are a=4.596 Å, b=8.566 Å, c=9.051 Å and β=97.46°. LiFe2P3O10 has a weak antiferromagnetic ordering below the Néel temperature TN=19 K. Electrochemical measurements carried out at 25 °C in lithium cell with LiPF6-EC-DEC electrolyte show a capacity 70 mAh/g in the voltage range 2.7-3.9 V.

Drop Solution Calorimetric Studies of Interface Enthalpy of Cubic Silver (I) Oxide (Ag2O) Nanocrystals

2021 ◽  
Vol 878 ◽  
pp. 73-80
Author(s):  
Khansaa Al-Essa ◽  
A V Radha ◽  
Alexandra Navrotsky
Keyword(s):  
Thermodynamic Cycle ◽  
Solution Calorimetry ◽  
X Ray Diffraction ◽  
X Ray ◽  
Surface Areas ◽  
Chemical Technique ◽  
Crystallite Sizes ◽  
Wet Chemical ◽  
Wet Chemical Technique ◽  
Calorimetric Studies

The nanoscale, cubic silver (I) oxide (Ag2O.nH2O) with different particles sizes and surface areas were synthesized by a wet chemical technique. The prepared crystallite size ranges were from (33.3±0.3 to 39.4±0.4 nm). Interface areas were estimated by comparing the surface areas measured by N2 adsorption to the crystallite sizes refined from X-ray diffraction data. The interface enthalpy of Ag2O.nH2O nanocrystal was measured using isothermal acid solution calorimetry in 25%HNO3 at 26°C. The interface enthalpy was verified by utilizing thermodynamic cycle. The enthalpies of drop solution (ΔHds) for Ag2O.nH2O are exothermic and range from (-62.228±0.197) to (-64.025±0.434 kJ/mol), while its interface enthalpy is (0.842±0.508 J/m2). This work provides the first calorimetric measurement of the interface enthalpy of nanocrystalline silver (I) oxide (Ag2O.nH2O).

DyCrxFe(1-x)O3 nanoparticles prepared by wet chemical technique for photocatalytic applications

2020 ◽  
Vol 46 (17) ◽  
pp. 26675-26681 ◽  
Author(s):  
Hira ◽  
Aysha Daud ◽  
Sonia Zulfiqar ◽  
Philips O. Agboola ◽  
Imran Shakir ◽  
...  
Keyword(s):  
Chemical Technique ◽  
Wet Chemical ◽  
Wet Chemical Technique ◽  
Photocatalytic Applications

The Determination of Iron in Used Lubricating Oil

1971 ◽  
Vol 25 (6) ◽  
pp. 668-671 ◽  
Author(s):  
Gerald S. Golden
Keyword(s):  
Internal Standard ◽  
Rotating Disk ◽  
Lubricating Oil ◽  
X Ray ◽  
Chemical Technique ◽  
Used Lubricating Oil ◽  
Wet Chemical ◽  
Wet Chemical Technique ◽  
Instrumental Methods

Iron analyses performed on used gas turbine lubricating oil samples by several variations of rotating disk–spark emission spectrography, atomic absorptiometry, and x-ray fluorescence spectrometry are compared with a quantitative wet chemical technique. The results indicate that emission spectrography with a cobalt internal standard, atomic absorptiometry with a nitrous oxide–acetylene flame, and x-ray fluorescence, both dispersive and nondispersive, are the most reliable instrumental methods. The iron contained in the samples exists primarily as particulates 1 µ or less in diameter.

A novel approach towards hydrazine sensor development using SrO·CNT nanocomposites

RSC Advances ◽  
2016 ◽  
Vol 6 (70) ◽  
pp. 65338-65348 ◽  
Author(s):  
Mohammed M. Rahman ◽  
Mohammad Musarraf Hussain ◽  
Abdullah M. Asiri
Keyword(s):  
Carbon Nanotube ◽  
Low Temperature ◽  
Strontium Oxide ◽  
Sensor Development ◽  
Novel Approach ◽  
Chemical Technique ◽  
Wet Chemical ◽  
Oxide Nanoparticle ◽  
Wet Chemical Technique ◽  
Hydrazine Sensor

Strontium oxide nanoparticle decorated carbon nanotube nanocomposites (SrO·CNT NCs) were prepared in alkaline medium using a wet-chemical technique at low temperature.

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