Results 41 to 50 of about 5,671 (212)

Controlled Electrokinetic Particle Manipulation using Paper-and-Pencil Microfluidics

, 2018
Dielectrophoresis is a very promising technique for particle manipulation on a chip. In this study, we demonstrate a controlled mannuvering of polystryrene particles on a simple paper-and-pencil based device by exploiting the underlying electrokinetics ...
Chakraborty, Suman, Das, Sankha Shuvra, Dawn, Sayantan, Kar, Shantimoy, Saha, Partha   +4 more
core   +1 more source

A Simple Green Synthesis of Palladium Nanoparticles with Sargassum Alga and Their Electrocatalytic Activities Towards Hydrogen Peroxide [PDF]

, 2015
This study presents the synthesis of palladium nanoparticles (PdNPs) using the extract derived from the marine alga, Sargassum bovinum, collected from Persian Gulf area. Water-soluble compounds that exist in the marine alga extract were the main cause of
momeni, safieh, nabipor, l
core   +1 more source

Graphite Based Electrode for ECG Monitoring: Evaluation under Freshwater and Saltwater Conditions

Sensors, 2016
We proposed new electrodes that are applicable for electrocardiogram (ECG) monitoring under freshwater- and saltwater-immersion conditions. Our proposed electrodes are made of graphite pencil lead (GPL), a general-purpose writing pencil.
Tharoeun Thap, Kwon-Ha Yoon, Jinseok Lee
doaj   +1 more source

Pre-Anodized Graphite Pencil Electrode Coated with a Poly(Thionine) Film for Simultaneous Sensing of 3-Nitrophenol and 4-Nitrophenol in Environmental Water Samples

Sensors, 2022
A very simple, as well as sensitive and selective, sensing protocol was developed on a pre-anodized graphite pencil electrode surface coated using poly(thionine) (APGE/PTH). The poly(thionine) coated graphite pencil was then used for simultaneous sensing
Vijaya Gopalan Sree, Jung Inn Sohn, Hyunsik Im   +2 more
doaj   +1 more source

Electroanalysis of urinary L-dopa using tyrosinase immobilized on gold nanoelectrode ensembles [PDF]

, 2012
The performance of an amperometric biosensor constructed by associating tyrosinase (Tyr) enzyme with the advantages of a 3D gold nanoelectrode ensemble (GNEE) is evaluated in a flow-injection analysis (FIA) system for the analysis of l-dopa.
Delerue-Matos, Cristina, Oliveira, M. Beatriz P. P., Pinho, Ana, Ribeiro, Susana, Viswanathan, Subramanian   +4 more
core   +1 more source

The Use of Digital Image Processing in Analysis of Boron, Cadmium in Thorium Oxide Without Carrier Distilation with Emission Spectrograph Method [PDF]

, 2012
THE USE OF DIGITAL IMAGE PROCESSING IN ANALYSIS OF BORON, CADMIUM IN THORIUM OXIDEWITHOUT CARRIER DISTILLATION EMISSION SPECTROGRAPH METHOD. The use of digital imageprocessing in direct determination elements of highly absorption cross-section of thermal
Aryadi, A. (Aryadi), Muhtadan, M. (Muhtadan), Simbolon, S. (Sahat)   +2 more
core   +2 more sources

Electrochemical detection of lead and cadmium in UHT-processed milk using bismuth nanoparticles/Nafion®-modified pencil graphite electrode

Sensing and Bio-Sensing Research, 2019
Pencil graphite electrodes (PGEs) were modified with bismuth nanoparticles and Nafion® using the drop-coating method. Simultaneous detection of trace cadmium (Cd2+) and lead (Pb2+) in ultrahigh-temperature-processed milk samples were done via anodic ...
Shirley Palisoc, Annathea Jane Gonzales, Alyson Pardilla, Lotis Racines, Michelle Natividad   +4 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

Determination of Dipyridamole Using a MIP-Modified Disposable Pencil Graphite Electrode

Chemosensors, 2023
A new method for the determination of the antiplatelet drug dipyridamole (DIP) in pharmaceuticals using a molecularly imprinted polymer (MIP)-modified pencil graphite electrode (PGE) is proposed.
Daniel Preda, Maria Lorena Jinga, Iulia Gabriela David, Gabriel Lucian Radu   +3 more
doaj   +1 more source

Nanomaterial-Enhanced Electrochemical Sensors for Clinical Monitoring of Acyclovir: Integration Into Molecular Diagnostics. [PDF]

J Clin Lab Anal
Schematic illustration of biosensor technology for detection of ACV. ABSTRACT Objective This study investigates the innovative application of nanomaterial‐based micro‐devices aimed at enhancing the diagnosis and management of acyclovir (ACV) for herpes virus infections, specifically those caused by HSV‐1, HSV‐2, CMV, and VZV.
Darvishi M, Heidari MM, Kheradmand R, Niaki NM, Tabean M, Mobed A.   +5 more
europepmc   +2 more sources