Article
Biochemical Research Methods
Pablo C. Serrano, Gisele E. Nunes, Lindiomar B. Avila Jr, Carleane P. S. Reis, Aldo M. C. Gomes, Francoise T. Reis, Maria L. Sartorelli, Silvia Pedroso Melegari, William G. Matias, Ivan H. Bechtold
Summary: Saxitoxin, a harmful cyanotoxin, requires monitoring in water bodies. An electrochemical impedimetric biosensor using a specific aptamer was developed for its detection, showing high sensitivity and selectivity.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Biophysics
Jose M. R. Flauzino, Emily P. Nguyen, Qiuyue Yang, Giulio Rosati, David Panacek, Ana G. Brito-Madurro, Joao M. Madurro, Aristides Bakandritsos, Michal Otyepka, Arben Merkoci
Summary: This study presents a label-free impedimetric genosensor for the sensitive detection of pork residues in meat, utilizing the biosensing capabilities of graphene acid. The sensor can detect pork residues in beef in less than 45 minutes, with a detection limit of 9%.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Iremnur Akcakoca, Hamed Ghorbanpoor, Ewen Blair, Yasin Ozturk, Araz Norouz Dizaji, Tanil Kocagoz, Huseyin Avci, Damion Corrigan, Fatma Dogan Guzel
Summary: This study developed a microheater to enhance the sensitivity of nucleic acid hybridization detection, paving the way for the development of highly sensitive and specific integrated label-free biosensors.
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
(2022)
Article
Chemistry, Applied
Yijian Wang, Liqin Kong, Guoqiang Shu, Guanqquan Sun, Yaoze Feng, Ming Zhu
Summary: An electrochemical impedimetric biosensor was developed for detecting umami substances. The biosensor showed low detection limits and wide linear ranges for monosodium glutamate and inosine-5'-monophosphate. It also exhibited high specificity in real food samples and desirable storability.
Article
Chemistry, Multidisciplinary
Viktoria Heine, Tom Kremers, Nora Menzel, Uwe Schnakenberg, Lothar Elling
Summary: The study presents a novel electrochemical impedance spectroscopy sensor for real-time monitoring of bacterial fucosyltransferase binding kinetics. By immobilizing a multivalent neoglycoprotein on the sensor, the researchers were able to detect glycosyltransferase activities and protein-glycan interactions, which could be valuable for detecting pathogenic bacteria and cancer cells in future biomedical applications.
Article
Chemistry, Analytical
Elena A. Chiticaru, Luisa Pilan, Mariana Ionita
Summary: In this paper, an improved electrochemical platform based on graphene was proposed for the detection of DNA hybridization. Commercial screen-printed carbon electrodes were modified with reduced graphene oxide and aryl-carboxyl groups to immobilize DNA probes. The fabrication process was monitored by cyclic voltammetry and electrochemical impedance spectroscopy, and the morphological and structural characterization of the modified electrodes was performed using scanning electron microscopy and Raman spectroscopy. This platform shows potential for label-free detection of DNA hybridization.
Article
Engineering, Chemical
R. N. Dalila, M. K. Md Arshad, Subash C. B. Gopinath, Conlathan Ibau, M. M. N. Nuzaihan, M. F. M. Fathil, U. Z. Mohd Azmi, Periasamy Anbu
Summary: A label-free Faradaic electrochemical impedimetric was developed for highly sensitive detection of C-reactive protein (CRP) using a gold interdigitated microelectrode biosensing platform enhanced by a gold nanoparticle-decorated molybdenum disulfide (Au-NPs/MoS2) nanosheet. The developed immunoassay showed a linear detection range of CRP and demonstrated excellent performance.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Chemistry, Analytical
Fikret Ari, Bahar Ince, Mehmet Altay Unal, Mustafa Kemal Sezginturk, Sibel A. Ozkan
Summary: Although there is still room for improvement in diagnostic and treatment options for various cancers, electrochemical biosensors using quartz tuning forks (QTF) have emerged as a promising platform. This research explores the functionalization and isolation of QTF for biomarker determination, demonstrating their unique response and sensitivity. The results show that QTF-based immunosensors have high detection sensitivity and low cost, making them ideal for point-of-care diagnostic devices.
MICROCHEMICAL JOURNAL
(2023)
Article
Engineering, Biomedical
Kangping Hu, Jason Ho, Jacob K. Rosenstein
Summary: The research demonstrates the use of a CMOS sensor array for micro-scale super-resolution electrochemical impedance spectroscopy (SR-EIS) imaging. The sensor is designed to measure mutual capacitance between pixel pairs, allowing for the generation of spatially-resolved impedance images. Experimental results show the sensor's capability to produce microscale impedance images with sub-pixel resolution.
IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS
(2022)
Article
Chemistry, Analytical
Ramesh Thevendran, Kai Loong Foo, Mohd Hazwan Hussin, Emmanuel Jairaj Moses, Marimuthu Citartan, Haarindraprasad Rajintra Prasad, Solayappan Maheswaran
Summary: The study developed an efficient DNA biosensor for the detection of AML caused by FLT3-ITD mutations. The biosensor demonstrated high sensitivity and stability, making it a promising tool for rapid and low-cost diagnostic applications.
Article
Engineering, Electrical & Electronic
Lignesh Durai, Sushmee Badhulika
Summary: The study reported an ultra-selective biosensor for fibrinogen detection using AlFeO3 nanospheres modified screen-printed carbon electrode, which exhibited excellent selectivity and sensitivity. The sensor has a low limit of detection and is suitable for detecting both deficiency and excess levels of fibrinogen in human blood.
IEEE SENSORS JOURNAL
(2021)
Review
Chemistry, Multidisciplinary
Changpeng Hu, Rabia Tahir, Hanbin Mao
Summary: Single-molecule mechanochemical sensing is a novel biosensing technique that uses mechanical force as a signal transduction mechanism. By converting the chemical binding of analyte molecules to mechanical signals, this technique allows for sensitive sensing at the single molecule level. Compared to traditional ensemble sensing methods, single-molecule mechanochemical sensing offers higher material efficiency and temporal resolution.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Article
Chemistry, Analytical
Sida Ren, Xi Zhang, Zhijie Li, Xiaoxia Jian, Junjian Zhao, Yan-Yan Song
Summary: An electrochemical biosensor for Gram-negative bacteria, based on a conductive polymer with artificial muscle properties, was established with specific and sensitive recognition. The sensor achieved effective recognition through specific carbohydrate-carbohydrate interaction, enhanced by impulse voltage application. With a low cost, high efficiency, and rapid detection time, the biosensor shows promising potential for application in portable devices and paving the way for the construction of electrochemical biosensors.
Article
Chemistry, Analytical
Karen Y. P. S. Avelino, Alberto G. Silva-Junior, Maira G. R. Pitta, Abdelhamid Errachid, Maria D. L. Oliveira, Cesar A. S. Andrade
Summary: Systemic sclerosis (SSc) is an autoimmune disease that affects connective tissue. A nano-engineered immunosensor surface was developed for detecting the oncostatin M receptor (sOSMR) protein in clinical samples. The biosensor showed a differential diagnostic character for limited cutaneous (lSSc) and diffuse cutaneous (dSSc) SSc subtypes. The sensing strategy demonstrated high sensitivity and potential for SSc-related biomarker research.
Article
Chemistry, Analytical
Rodtichoti Wannapob, Surachada Chuaychob, Masahiro Fujita, Mizuo Maeda
Summary: Electrochemical impedance spectroscopy (EIS) was utilized to detect non-Watson-Crick base pairs of DNA, where a significant increase in charge-transfer resistance (Rct) was observed for terminal base mismatches but not internal base mismatches. Moreover, unpaired and overhang DNA at the terminal were found to hinder charge transfer to the electrode surface through EIS measurements. Additionally, the steric properties of DNA strands were successfully detected using EIS.
ANALYTICAL SCIENCES
(2021)
Article
Electrochemistry
Abdul Qayoom Mugheri, Shaista Khan, Ali Asghar Sangah, Aijaz Ahmed Bhutto, Muhammad Younis Laghari, Nadeem Ahmed Mugheri, Asif Ali Jamali, Arsalan Ahmed Mugheri, Nagji Sodho, Abdul Waheed Mastoi, Aftab Kandhro
Summary: Green hydrogen has the potential to transition to a pollution-free energy infrastructure. This study proposes a solution to produce hydrogen during the photoelectrochemical process, offering greater stability and control over chemical reactions. Techno-economic assessments show the efficiency and economic feasibility of co-producing value-added chemicals to enhance green hydrogen production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Danpeng Cheng, Wuxin Sha, Qigao Han, Shun Tang, Jun Zhong, Jinqiao Du, Jie Tian, Yuan-Cheng Cao
Summary: LiNixCoyMn1-x-yO2 (NCM) is a critical cathode material for lithium-ion batteries in electric vehicles. The aging of cathode/electrolyte interfaces leads to capacity degradation and long-term cycle instability. A novel neural network model called ACGNet is developed to predict electrochemical stability windows of crystals, allowing for high-throughput screening of coating materials. LiPO3 is identified as a promising coating material with high oxidation voltage and low cost, which significantly improves the cycle stability of NCM batteries. This study demonstrates the accuracy and potential of machine learning in battery materials.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
P. Mohana, R. Yuvakkumar, G. Ravi, S. Arunmetha
Summary: This study successfully fabricates a non-noble CuO/NiO/rGO nanocomposite and investigates its electrocatalytic performance for oxygen evolution reaction in alkaline environment. The experimental results demonstrate that the electrocatalyst exhibits high activity and good stability, offering a new synthetic approach for sustainable energy production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Qiong Qu, Jing Guo, Hongyu Wang, Kai Zhang, Jingde Li
Summary: In this study, a bifunctional electrode host design consisting of carbon nanofibers implanted ordered porous Co-decorated Al2O3 supported on carbon nanotube film (CNTF) was proposed to address the shuttling effect of lithium polysulfides (LiPSs) and dendrite formation of metal lithium anode in lithium-sulfur (Li-S) batteries. The electrode exhibited excellent conductivity, efficient confinement of LiPSs, and catalytic conversion performance, resulting in high initial capacity and good capacity retention during cycling. As an anode, the electrode showed excellent Li+ diffusion performance and uniform lithium growth behavior, achieving a dendrite-free lithium electrode. The flexible pack cell assembled from these electrodes delivered a specific capacity of 972 mAh g(-1) with good capacity retention.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Hong Zhang, Jin-Peng Yu, Chen Chen, Cheng-Yong Shu, Guang-Yu Xu, Jie Ren, Kai Cui, Wen-Fang Cai, Yun-Hai Wang, Kun Guo
Summary: Spray coating of acetylene black nanoparticles onto stainless steel mesh can enhance its biofilm formation ability and current density, making it a promising electrode material for microbial electrochemical systems. The spray coating method is simple, cost-effective, and suitable for large-size stainless steel electrodes.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Binpeng Hou, Jingjin Chen, Li-Hong Zhang, Xiaowen Shi, Zizhong Zhu
Summary: The electrochemical performance of Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase Li1.20Mn0.44Ni0.32Co0.04O1.83 was studied through first-principles calculations. The results show that the oxygen-deficient phase has a higher theoretical capacity but lower voltage platform and higher chemical activity compared to the pristine phase.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Yating Du, Sayoko Shironita, Daisuke Asakura, Eiji Hosono, Yoshitsugu Sone, Yugo Miseki, Eiichi Kobayashi, Minoru Umeda
Summary: This study investigates the effect of high- and low-temperature environments on the charge-discharge performance of a Li-ion battery. The deterioration mechanisms of the battery at different temperatures are analyzed through various characterization techniques. The results indicate that the battery performance deteriorates more significantly at a low-temperature environment of 5 degrees C compared to higher temperatures. The understanding of the deterioration mechanisms can contribute to the development of safer battery usage methods.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Si-Si Shi, Zhi-Xiang Yuan, Fei Zhang, Ping Chen
Summary: In this study, a new nano-electrocatalyst was prepared, which exhibited superior electrocatalytic activity for the reduction of NO2- to ammonia in a neutral electrolyte, potentially due to the synergistic enhancement between Co3O4-x and Co.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Berna Dalkiran, Havva Bekirog
Summary: This study reports the use of deep eutectic solvents (DES) based on ethylene glycol and urea as low-cost and green electrolytes for enhancing electrochemical detection of natural antioxidants. The study successfully developed a disposable and effective electrochemical sensing platform for simultaneous determination of ascorbic acid (AA) and gallic acid (GA) using NaOH nanorods on a pencil graphite electrode. The proposed electrode showed improved analytical performance, with higher peak currents and shifted oxidation potentials in DES compared to BR buffer medium.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Sijun Ren, Jianguo Huang
Summary: In this study, a novel bio-inspired nanofibrous WO3/carbon composite was synthesized using a facile hydrothermal method. The three-dimensional network structure of the composite alleviated the volume expansion of WO3 nanorods and enhanced the charge-transport kinetics. The optimized composite exhibited superior lithium storage properties.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Zhilong Zheng, Yu Chen, Hongxia Yin, Hengbo Xiao, Xiangji Zhou, Zhiwen Li, Ximin Li, Jin Chen, Songliu Yuan, Junjie Guo, Haibin Yu, Zhen Zhang, Lihua Qian
Summary: This study found that interstitial Zn cations in CoMoO4 can modulate the dissolution kinetics of Mo cations and improve the OER performance. The interstitial Zn cations can prevent the dissolution of Co cations at high potential, enhancing the durability of the catalyst.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Xiaobo Lin, Shern R. Tee, Debra J. Searles, Peter T. Cummings
Summary: Molecular dynamics simulations using the constant potential method were used to investigate the charging dynamics and charge storage of supercapacitors. The simulations revealed that the water-in-salt electrolyte exhibited the highest charge storage and significantly higher capacitance on the negative electrode. The varying contributions of different electrode regions to supercapacitor performance were also demonstrated.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Wiktoria Lipinska, Vita Saska, Katarzyna Siuzdak, Jakub Karczewski, Karol Zaleski, Emerson Coy, Anne de Poulpiquet, Ievgen Mazurenko, Elisabeth Lojou
Summary: The spatial distribution of enzymes on electrodes is important for bioelectrocatalysis. In this study, controlled spatial distribution of gold nanoparticles on Ti nanodimples was achieved. The efficiency of enzymatic O2 reduction was found to be influenced by the size of the gold nanoparticles and their colocalization with TiO2. The highest stability of enzymatic current was observed with the largest gold nanoparticles.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Tariq M. Al-Hejri, Zeenat A. Shaikh, Ahmed H. Al-Naggar, Siddheshwar D. Raut, Tabassum Siddiqui, Hamdan M. Danamah, Vijaykumar V. Jadhav, Abdullah M. Al-Enizi, Rajaram S. Mane
Summary: This study explores a promising self-growth approach for the synthesis of nickel hydroxide (Ni(OH)2) nanosponge-balls on the surface of a nickel-foam (NiF) electrode. The modified NiF electrode, named Ni(OH)2@NiF, shows distinctive nanosponge-ball morphology and demonstrates excellent energy storage capability and electrocatalytic performance in both hydrogen and oxygen evolution reactions.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Rafael Del Olmo, Gregorio Guzman-Gonzalez, Oihane Sanz, Maria Forsyth, Nerea Casado
Summary: The use of Lithium-Ion Batteries (LIBs) is becoming increasingly extensive, and it is important to optimize the devices to achieve their maximum practical specific capacity. In this study, mixed ionic-electronic conducting (MIEC) binders based on PEDOT:PSS and PEDOT: PDADMA-TFSI were developed for Li-ion cathodes, and their performance was compared with conventional formulations. The influence of electrode formulations, including the addition of conducting carbon and an Organic Ionic Plastic Cristal (OIPC), was also analyzed. The proposed binders showed improved performance compared to conventional formulations with different electrolyte types and active materials.
ELECTROCHIMICA ACTA
(2024)