Results 71 to 80 of about 176,662 (294)

Sustainable Poly(Lactic Acid)/Graphene Oxide Bioelectronic Platform for Neurotransmitters Sensing and Tunable Stimulation of Astrocytes

open access: yesAdvanced Materials, EarlyView.
This work introduces sustainable PLA/graphene oxide bioelectronic interfaces featuring electrodes with tunable conductivity and strong electrocatalytic performance. These platforms were used to implement a new method for tuning astrocyte Ca2+ signaling and for the efficient detection of key biomarkers.
Alessandra Scidà   +15 more
wiley   +1 more source

Pseudo-stir bar hollow fiber solid/liquid phase microextraction combined with anodic stripping voltammetry for determination of lead and cadmium in water samples

open access: yesJournal of Advanced Research, 2014
A new procedure is presented for the determination of low concentrations of lead and cadmium in water samples. Ligand assisted pseudo-stir bar hollow fiber solid/liquid phase microextraction using sol–gel sorbent reinforced with carbon nanotubes was ...
Zarrin Es’haghi   +3 more
doaj   +1 more source

High-Accuracy Differential-Pulse Anodic Stripping Voltammetry Using Indium as an Internal Standard

open access: yes, 1988
In(III) is employed as an internal standard for the determination of Cd, Cu, and Pb at the 20 micrograms/g level using differential pulse anodic stripping voltammetry.
Pratt, K W, Koch, W F
core  

Adsorption‐Engineered Hydrocarbon Ionomers for Durable Proton‐Exchange Membrane Fuel Cells

open access: yesAdvanced Materials, EarlyView.
Hydrocarbon ionomers suffer from oxidation‐driven interfacial degradation in PEM fuel cell cathodes, leading to catalyst instability. Here, adsorption‐engineered poly(fluorene) ionomers decouple interfacial anchoring from oxidative degradation, enabling strong catalyst–ionomer interactions while resisting electrochemical oxidation.
Heemin Park   +14 more
wiley   +1 more source

Orange peel essential oil as component of a metal sensor for lead (II) ion determination in aqueous solutions

open access: yesJournal of Applied Sciences and Environmental Management, 2005
Orange (Citrus sinensis) peel, a waste material was used as source of essential oil that served as component of a sensor that detects the presence of lead (II) ions in aqueous solutions. The prepared sensor was investigated in evaluating its potential as
Rolando O Elviña, Elmer-Rico E Mojica
doaj   +1 more source

Leveraging Data‐Driven and Fundamental Insights for Electrolyte Innovation in Lithium Metal Batteries

open access: yesAdvanced Materials, EarlyView.
Using 640 curated electrolyte formulations, we apply data‐driven analysis to reveal how molecular features govern coulombic efficiency (CE) in lithium metal batteries. Fluorine content correlates positively with CE, while oxygen, carbon, and higher boiling points correlate negatively.
Minh Van Duong   +6 more
wiley   +1 more source

Parâmetros físico-químicos das reações de Zn2+ e Cd2+ com 8-hidroxiquinolina acompanhado por espectrofluorimetria em meio micelar [PDF]

open access: yes, 2006
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em QuímicaO intenso uso dos metais pesados aliados as suas toxicidades, fazem com que novos métodos de análise sejam ...
Sapelli, Evandro
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Sub‐Nanometer Cobalt on Tungsten Titanium Carbide MXene (W2TiC2Tx): An Electrocatalyst for Highly Efficient and Stable Alkaline Hydrogen Evolution at Industrial‐Scale Current Density

open access: yesAdvanced Materials, EarlyView.
A novel W2TiC2Tx MXene prepared through a MAX‐phase route supports sub‐nanometer Co for highly efficient alkaline hydrogen evolution. Strong Co–W interfacial interactions optimize hydrogen adsorption and catalytic activity, enabling low overpotentials of 63 mV at 10 mA cm−2, small Tafel slope of 44.3 mV dec−1, and exceptional durability at industrially
Xiaopeng Liu   +15 more
wiley   +1 more source

Bismuth Nano-Flower Modified CPE for Anodic Stripping Voltammetry Detection of Cd(II)

open access: yesInternational Journal of Electrochemical Science, 2019
Bismuth (Bi) nano-needle, nano-rod, nano-sheet, and nano-flower were synthesized using a facile one- step solvothermal method by adjusting the volume of ethylenediamine (EDA).
Yuyuan Liu   +4 more
doaj   +1 more source

Anodic stripping voltammetry

open access: yes, 2017
PosterPoster exploring anodic stripping voltammetry using bismuth film electrodes (BiFEs) rather than mercury film electrodes (MFE) for trace metals analysis.https://viuspace.viu.ca/bitstream/handle/10613/3258/Guzman.Poster.pdf?sequence=4Chemistry 312 ...
Guzman, Sara
core  

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