Article
Materials Science, Ceramics
Rayees Ahmad Zargar, Manju Arora, T. Alshahrani, Mohd Shkir
Summary: Zinc oxide and multiwall carbon nanotubes nanocomposites thick films were prepared through a sol-gel screen printing process and characterized using various techniques. Results showed that MWCNT doping reduced resistance, improving conductivity and color emission for low-cost optoelectronics devices.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Omolola E. Fayemi, Onkarabile G. Pooe, Funmilola A. Adesanya, Ikechukwu P. Ejidike
Summary: A successful electrochemical study was conducted on copper oxide nanoparticles (CuO NPs), sulfonated poly (ether ether ketone) polymer (SPEEK), and sulfonated polyether ether ketone-copper oxide (SPEEK/CuO) nanocomposite on bare gold electrodes. The results showed that CuO NPs improved the electrochemical properties of SPEEK, and the SPEEK/CuO nanocomposite exhibited good adsorption and enhanced electrochemical performance compared to SPEEK polymer and CuO NPs alone.
Article
Chemistry, Analytical
Meng-Meng Liu, Feng-Feng Zhang, Hui Liu, Zhou-Jie Liu, Pin-Fang Huang
Summary: A simple and low-cost cell viability and drug evaluation biosensing system was constructed using multi-walled carbon nanotubes, gold nanoparticles, and Nafion modified screen-printed electrode (SPE) biosensor for the detection of dopamine released from living cells and the evaluation of cytotoxicity of antineoplastic drugs. The biosensing system showed exceptional selectivity, sensitivity, and stability in complex bio-samples. The obtained IC50 curves by the biosensing system and tetrazolium colorimetric assay provided similar IC50 value but distinctly different dose-effect relationship, demonstrating the potential of the biosensor in cell viability and drug efficacy profiling.
Article
Chemistry, Multidisciplinary
Hadi Beitollahi, Fraiba Garkani Nejad, Somayeh Tajik, Antonio Di Bartolomeo
Summary: This study focuses on the development of a novel electrochemical sensor for the determination of morphine. The sensor demonstrated good sensitivity and analytical efficiency, and could accurately detect morphine in the presence of other substances.
Article
Chemistry, Multidisciplinary
Somayeh Tajik, Hadi Beitollahi, Sayed ali Ahmadi, Mohammad Bagher Askari, Antonio Di Bartolomeo
Summary: We successfully developed a sensor for hydroxylamine with high sensitivity and a broad linear dynamic range through surface modification, which can be used for detecting hydroxylamine in water samples.
Article
Chemistry, Analytical
Nopparat Janmee, Pattarachaya Preechakasedkit, Nadnudda Rodthongkum, Orawon Chailapakul, Pranut Potiyaraj, Nipapan Ruecha
Summary: A non-enzymatic disposable electrochemical sensor was developed to determine glucose levels in human urine and electrolyte drinks. It was combined with an automated sample pretreatment paper-based device to eliminate the need for additional sample preparation steps. The sensor showed rapid current response and good linearity using the CuO-IL/rGO nanocomposite modified screen-printed carbon electrode.
ANALYTICAL METHODS
(2021)
Article
Electrochemistry
Wichayaporn Kamsong, Vitsarut Primpray, Patiya Pasakon, Chakrit Sriprachuabwong, Saithip Pakapongpan, Johannes Philipp Mensing, Anurat Wisitsoraat, Adisorn Tuantranont, Chanpen Karuwan
Summary: A highly sensitive and disposable screen-printed ionic liquid-graphene electrode (SPIL-GE) was developed for electrochemical sensing. The electrode showed improved electrochemical performance compared to other types of electrodes, making it a potential candidate for advanced electrochemical sensing applications.
ELECTROCHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Nadeen Rajab, Hosny Ibrahim, Rabeay Y. A. Hassan, Ahmed F. A. Youssef
Summary: An electrochemical assay using disposable nano-sensor chip ZrO2@MWCNTs screen printed electrodes (SPE) was constructed for the rapid, selective, and sensitive determination of nitrite in food and water samples. The use of nanomaterials as a sensing platform exhibited superior electrocatalytic activity and conductivity. Morphological, structural, and electrochemical analyses were performed to study the performance of the sensor. The assay showed a wide linear range and high selectivity, and achieved a high recovery rate in real sample analysis.
Article
Chemistry, Analytical
V. Sunil Kumar, Shekher Kummari, Gaelle Catanante, K. Vengatajalabathy Gobi, Jean Louis Marty, K. Yugender Goud
Summary: A label-free electrochemical impedimetric immunosensor was developed for rapid and sensitive detection of zearalenone (ZEN) using palladium nanoparticle embedded functionalized carbon nanotube-chitosan (SPCE/CS-CNT-Pd) modified electrode. The structure of the nanocomposite was analyzed and verified using X-ray diffraction, transmission electron microscopy, and energy dispersive X-ray spectroscopy. The coexistence of Pd nanoparticles with CNTs enhanced the conductivity and catalytic properties of the transducer surface, as well as improved antibody immobilization. The immunosensor showed high sensitivity and simplicity compared to conventional methods and successfully detected ZEN in corn samples with good recovery values.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Marius Andrei Olariu, Tudor Alexandru Filip, Catalina Anisoara Peptu, Ina Turcan
Summary: This paper reports the functionality of dielectrophoresis (DEP) for manipulating multi-walled carbon nanotubes (MWCNTs) on printed interdigitated electrodes. The success of DEP manipulation and suitable signal frequencies for avoiding parasitic effects were demonstrated. The time-dependent effect and voltage contribution in MWCNTs bridge formation were discussed.
Article
Biotechnology & Applied Microbiology
Nan Wang, Guiying Pan, Shimin Guan, Shaofeng Rong, Dapeng Wang, Zhiyong Gao, Peng Tian, Qianqian Li
Summary: In this study, an electrochemical biosensor based on a screen-printed carbon electrode was developed for the rapid detection of human noroviruses (HuNoVs). The biosensor showed high sensitivity and specificity, and could detect different genogroups and genotypes of HuNoVs. The detection limit of HuNoVs in clinical fecal samples was 10(4) genomic copies/mL. The results could be obtained within 1 hour.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Physical
Ebrar Dokur, Selen Uruc, Rabianur Kurteli, Ozge Gorduk, Yucel Sahin
Summary: This study presents an improved handmade screen-printed electrode (SPE) that can be easily produced using conductive ink. The electrode is based on a cardboard substrate and is used as an electrochemical sensor. The alkaline pretreatment applied to the cardboard substrate is reported for the first time in the literature. The electrode is characterized using various techniques and is successfully used for the determination of dopamine.
Article
Chemistry, Analytical
J. P. Chandhana, Navaneeth Punnakkal, Suneesh Punathil Vasu, Aarathi Pradeep, Bipin G. Nair, T. G. Satheesh Babu
Summary: A non-enzymatic sensor based on zirconium copper oxide microflowers was developed for glucose detection in saliva, urine, and blood. The sensor exhibited excellent sensitivity, selectivity, and stability, with high accuracy and reliability in different body fluids. This sensor shows promise for the development of invasive and non-invasive point-of-care testing devices for glucose detection.
Article
Chemistry, Analytical
Melinda David, Adrian Serban, Teodor Adrian Enache, Monica Florescu
Summary: This study described and compared the performances of commercial screen-printed carbon electrodes with different nanostructured materials for LT4 detection. The presence of carbon nanotubes resulted in the best performance for LT4 detection.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Environmental Sciences
Matineh Hasanpour, Abbas Pardakhty, Somayeh Tajik
Summary: This study developed a simple sensing system based on MoSe2-rGO/SPCE for voltammetric co-detection of amitriptyline and carbamazepine, with high sensitivity and narrow detection limit.