Results 61 to 70 of about 5,745 (213)

Rapid and Direct Detection of Methamphetamine in Biofluids using a MXene‐Enabled Electrochemical Sensor

Advanced Science, Volume 13, Issue 21, 13 April 2026.
A MXene‐enhanced electrochemical sensor enables the rapid and direct detection of methamphetamine. Molecular simulations reveal that specific MXene surface functional groups act as key signal amplifiers by facilitating interfacial interactions. The sensor demonstrates high sensitivity and robust performance in complex biological matrices.
Ri Wang, Xiaofei Deng, Bo Chen, Jienan Shen, Wei Xu, Yingjie Zhu, Yi Zhang, Hui Yang   +7 more
wiley   +1 more source

Electrochemical oxidation pathway of the anti-cancer agent dasatinib using disposable pencil graphite electrode and its adsorptive stripping voltammetric determination in biological samples

Journal of the Turkish Chemical Society, Section A: Chemistry, 2018
The present study describes the use of pencil graphite electrode (PGE) for the investigation of electro-oxidation mechanism and voltammetric stripping determination of dasatinib (DST) in Britton-Robinson buffer solution (BR).
Dilek Eskiköy Bayraktepe, Kamran Polat, Zehra Yazan   +2 more
doaj   +1 more source

Piroxicam voltammetric determination by ultra low cost pencil graphite electrode

Brazilian Journal of Pharmaceutical Sciences, 2020
Piroxicam (PRX) was determined in pharmaceutical capsules with differential pulse voltammetry (DPV) in a three electrode system consisting of a pencil graphite electrode (PGE) as working electrode, a Pt wire and a reference electrode of Ag/AgCl/KCl 3 M ...
Isaac Yves Lopes de Macêdo, Morgana Fernandes Alecrim, Jerônimo Raimundo Oliveira Neto, Ieda Maria Sapateiro Torres, Douglas Vieira Thomaz, Eric de Souza Gil   +5 more
doaj   +1 more source

Electrical conductivity measured in atomic carbon chains

, 2013
The first electrical conductivity measurements of monoatomic carbon chains are reported in this study. The chains were obtained by unraveling carbon atoms from graphene ribbons while an electrical current flowed through the ribbon and, successively ...
Banhart, F., Botello-Mendez, A. R., Charlier, J. -C., Cretu, O., Janowska, I., Pham-Huu, C.   +5 more
core   +1 more source

A Synergistic Cetyltrimethylammonium Bromide (CTAB)/Multiwalled Carbon Nanotubes–β‐Cyclodextrin (MWCNT–β‐CD) Platform for Enhanced Electrochemical Detection of Bisphenol A

Advanced Sensor Research, Volume 5, Issue 3, March 2026.
CTAB/MWCNT–β‐CD/SPCE enables ultrasensitive and selective detection of BPA. Hydrophobic microdomains from CTAB tails, MWCNTs, and β‐cyclodextrin cavities preconcentrate BPA. Positively charged CTAB heads improve wettability and mass transport, allowing efficient electrochemical oxidation at 0.6 V with minimal interference from phenolic and biomolecular
Md Younus Ali, Matiar M. R. Howlader
wiley   +1 more source

Utility of Activated Glassy Carbon and Pencil Graphite Electrodes for Voltammetric Determination of Nalbuphine Hydrochloride in Pharmaceutical and Biological Fluids

International Journal of Electrochemistry, 2016
This work compares voltammetric response of nalbuphine hydrochloride (NP·HCl) at both activated glassy carbon and pencil graphite electrodes. The electrochemical oxidation of the drug was studied using cyclic voltammetry (CV), differential pulse ...
Hoda M. Elqudaby, Hassan A. M. Hendawy, Eglal R. Souaya, Gehad G. Mohamed, Ghada M. G. Eldin   +4 more
doaj   +1 more source

Pencil Lead as a Material for Microfluidic 3D-Electrode Assemblies

Sensors, 2018
We present an electrochemical, microfluidic system with a working electrode based on an ordered 3D array of pencil leads. The electrode array was integrated into a plexiglass/PDMS channel.
Emilia Witkowska Nery, Magdalena Kundys-Siedlecka, Yoshitaka Furuya, Martin Jönsson-Niedziółka   +3 more
doaj   +1 more source

Intriguing properties of graphite/polysiloxane composite-based pencil electrodes

Electrochimica Acta
Pencil leads can be considered well-defined and cheap graphite electrodes for a wide range of electrochemistry applications. These electrodes display many intriguing properties; however, the origin of these properties is not clear. Using various analytical approaches applied to two different commercially available Tombow (TO) and Staedtler (ST) pencils
Li, Xiaochun, Čechal, Jan, Spanhel, Lubomir, Toscani, Siro, Martiník, Jakub, Oborilova, Radka, Trnkova, Libuse   +6 more
openaire   +2 more sources

Poly(vinylferrocenium) coated disposable pencil graphite electrode for DNA hybridization

Electrochemistry Communications, 2009
Poly(vinylferrocenium) (PVF+) modified electrode was developed in this study for the electrochemical sensing of DNA based on the oxidation signals of polymer, adenine and guanine. Experimental parameters, such as; polymeric film thickness, DNA immobilization time and DNA concentration were examined in order to obtain more sensitive and selective ...
Kuralay, Filiz, Erdem, Arzum, Abaci, Serdar, Ozyoruk, Haluk, Yildiz, Attila   +4 more
openaire   +2 more sources

Top‐Down Fabricated Wood‐Derived Pressure and Strain Sensors: A Review

Advanced Science, Volume 13, Issue 15, 13 March 2026.
This review focuses on wood‐derived pressure/strain sensors fabricated via top‐down strategies. It analyzes wood's structural composition, examines processing techniques, discusses sensor types and sensing mechanisms, and reviews existing research. The article concludes with future directions for enhancing performance and scalability.
Yi Ren, Fuyao Liu, Yanan Zhong, Shengbo Ge, Zhipeng Shi, Siling Lin, Hongli Song, Yingying Zhang, Wei Fan   +8 more
wiley   +1 more source