Low-cost screen-printed sensors on-demand: Instantly prepared sparked gold nanoparticles from eutectic Au/Si alloy for the determination of arsenic at the sub-ppb level

2019 ◽  
Vol 281 ◽  
pp. 273-280 ◽  
Author(s):  
Maria G. Trachioti ◽  
Alexandros E. Karantzalis ◽  
Jan Hrbac ◽  
Mamas I. Prodromidis
Keyword(s):  
Gold Nanoparticles ◽  
Low Cost ◽  
On Demand ◽  
Printed Sensors ◽  
Screen Printed

Design of screen-printed bulk modified electrodes using anthraquinone–cysteamine functionalized gold nanoparticles and their application to the detection of dissolved oxygen

2015 ◽  
Vol 7 (5) ◽  
pp. 2020-2027 ◽  
Author(s):  
Ida Tiwari ◽  
Monali Singh ◽  
Mandakini Gupta ◽  
Jonathan P. Metters ◽  
Craig E. Banks
Keyword(s):  
Gold Nanoparticles ◽  
Dissolved Oxygen ◽  
Low Cost ◽  
Modified Electrodes ◽  
Functionalized Gold Nanoparticles ◽  
Screen Printed

We investigated the electroanalytical determination of dissolved oxygen using low-cost disposable screen-printed bulk modified electrodes based on nanostructures.

scholarly journals Application of screen-printed sensors for the determination of painkillers

2019 ◽  
Vol 73 (1) ◽  
pp. 111
Author(s):  
Agnieszka Sasal ◽  
Katarzyna Tyszczuk-Rotko
Keyword(s):  
Pharmaceutical Preparations ◽  
New Methods ◽  
Printed Sensors ◽  
Water Ecosystems ◽  
Trace Concentrations ◽  
Intensive Development ◽  
Active Substances ◽  
Routine Quality Control ◽  
Screen Printed

<p>This paper addresses the problem of the intensive development of the pharmaceutical industry and its consequences for the natural environment. The characteristics of the most commonly consumed pharmaceutical preparations and the ways of these substances penetrating into water ecosystems are presented. Attention was paid to the need to monitor environmental contamination and to search for new methods that would enable routine quality control of natural water samples. The application of modern, miniature screen-printed sensors for the determination of trace concentrations of selected active substances of pharmaceutical preparations are presented.</p>

scholarly journals Reduced Graphene Oxide/Gold Nanoparticles Modified Screen-Printed Electrode for the Determination of Palmitic Acid

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Chin Boon Ching ◽  
Jaafar Abdullah ◽  
Nor Azah Yusof
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Palmitic Acid ◽  
Reduced Graphene Oxide ◽  
Palm Oil ◽  
Water Mixture ◽  
Reduced Graphene ◽  
Electrochemical Approach ◽  
Screen Printed

Palm oil is one of the major oils and fats produced in the world today. The quality of palm oil is crucial to be investigated, and one of the quality indices is free fatty acid (FFA) content. Therefore, in this study, an electrochemical approach for the determination of FFA has been explored as an alternative to replace the conventional method (titration method). The electrochemical method was developed based on electrochemically reduced graphene oxide (rGO) coupled with gold nanoparticles (AuNPs) deposited onto a screen-printed carbon electrode (SPCE) via drop-casting technique. The voltammetric behaviour of 2-methyl-1,4-naphthoquinone (VK3) in the presence of palmitic acid at the modified electrode was investigated in an acetonitrile/water mixture containing lithium perchlorate (LiClO4). The electrochemical detection of palmitic acid was based on the voltammetric reduction of VK3 to form the corresponding hydroquinone which is proportional to the concentration of palmitic acid. Under optimum conditions, the developed method showed a good linear relationship towards palmitic acid in the concentration ranging from 0.192 mM to 0.833 mM with the detection limit of 0.015 mM. The exploration of the developed system is expected to achieve high sensitivity and excellent selectivity towards the determination of FFA content in palm oil.

Electrochemical Sensor for Determination of Pb2+ Based on Gold Nanoparticles

2020 ◽  
Vol 20 (6) ◽  
pp. 3356-3360
Author(s):  
Hao Yong Yin ◽  
Yi Fan Zheng ◽  
Ling Wang
Keyword(s):  
Gold Nanoparticles ◽  
Electrochemical Sensor ◽  
Electrochemical Detection ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Room Temperature ◽  
Low Cost ◽  
Differential Pulse ◽  
Practical Application

We report the formation of gold nanoparticles on indium tin oxide conducting glass (ITO) surface via electrodeposition method at room temperature. The prepared nano-Au electrodes has been fabricated for sensitive detection of Pb2+, and showed highly selective response toward Pb2+. The electrochemical detection of Pb2+ were determined by differential pulse stripping voltammetric (DPSV). The nano-Au electrochemical sensor could detect Pb2+ from 0.5 to 10 μM with detection limits of 0.06 μM (S/N= 3) and sensitivity of 0.27996 mA μM−1. The proposed sensor is simple, reliable, sensitive, selective, and low-cost, thus holds potential for practical application in Pb2+ detection.

Determination of ascorbic acid in serum samples by screen-printed carbon electrodes modified with gold nanoparticles

Talanta ◽  
2017 ◽  
Vol 174 ◽  
pp. 733-737 ◽  
Author(s):  
M. Asunción Alonso-Lomillo ◽  
Olga Domínguez-Renedo ◽  
Abraham Saldaña-Botín ◽  
M. Julia Arcos-Martínez
Keyword(s):  
Gold Nanoparticles ◽  
Ascorbic Acid ◽  
Carbon Electrodes ◽  
Serum Samples ◽  
Screen Printed

scholarly journals Developing a screen-printed graphite–polyurethane composite electrode modified with gold nanoparticles for the voltammetric determination of dopamine

RSC Advances ◽  
2019 ◽  
Vol 9 (72) ◽  
pp. 42306-42315 ◽  
Author(s):  
Priscila Cervini ◽  
Isabela A. Mattioli ◽  
Éder T. G. Cavalheiro
Keyword(s):  
Gold Nanoparticles ◽  
Composite Electrode ◽  
Voltammetric Determination ◽  
Polyurethane Composite ◽  
Dopamine Determination ◽  
Screen Printed

A screen-printed modified composite electrode (SPGPUE) was prepared with graphite–polyurethane ink containing gold nanoparticles (AuNPs), resulting in a sensor with improved sensitivity regarding the unmodified device in dopamine determination.

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