Article
Chemistry, Analytical
Jahir Ahmed, M. Faisal, Mohammed Jalalah, S. A. Alsareii, Farid A. Harraz
Summary: A novel electrochemical sensor for efficient detection of hydroquinone was proposed in this study, demonstrating high sensitivity and ultra-low detection limit. The sensor showed promising results in both laboratory testing and real sample analysis, with exceptional reproducibility, repeatability, and stability of the sensor assembly.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Engineering, Environmental
Md. A. Rashed, M. Faisal, S. A. Alsareii, Mabkhoot Alsaiari, Mohammed Jalalah, Farid A. Harraz
Summary: In this study, an electrochemical sensor based on a nanocomposite is reported for the sensitive and selective detection of the pesticide Imidacloprid. The sensor, constructed using Ag nanoparticles deposited on mesoporous carbon and naturally extracted hematite ore, exhibits excellent sensing performance with a wide linear detection range, high sensitivity, and low detection limit. The sensor electrode based on the Ag@Meso-C/Hematite Ore nanocomposite also demonstrates unique selectivity behavior and good reproducibility, repeatability, and storage stability. This sensing system, based on naturally occurring hematite ore, provides a sensitive approach for the detection of various target analytes in chemical sensing studies.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Analytical
Adil Shafi Ganie, Sayfa Bano, Saima Sultana, Suhail Sabir, Mohammad Zain Khan
Summary: The development of nanocomposite based electrochemical sensors for detection of toxic chemicals presents an environmentally friendly strategy for monitoring ecosystem health. The study demonstrated an in situ preparation of a ternary nanocomposite sensor with efficient electrocatalytic activity, high selectivity, sensitivity, and low detection limit. Furthermore, the fabricated sensor showed good operational and long-term storage stability.
Article
Biochemical Research Methods
Z. Lotfi, M. B. Gholivand, M. Shamsipur
Summary: A non-enzymatic glucose sensor based on g-C3N4/NiO/CuO nanocomposite immobilized on a glassy carbon electrode (GCE) was developed and showed superior electrochemical performance. The sensor exhibited a linear range from 0.4 μM to 8.5 mM, a detection limit of 0.1 μM, and a sensitivity of 362.12 μA mM(-1) cm(-2). This sensor displayed promising potential for blood glucose sensing with favorable reproducibility, selectivity, and long-term stability.
ANALYTICAL BIOCHEMISTRY
(2021)
Article
Engineering, Environmental
Jerome Rajendran, Ashok K. Sundramoorthy, Dhanraj Ganapathy, Raji Atchudan, Mohamed A. Habila, Deepak Nallaswamy
Summary: A hybrid MXene/graphene film was synthesized and used as an electrochemical transducer for the sensing of nicotine. The sensor showed selective and sensitive detection of nicotine, with high accuracy in human/artificial saliva samples.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Mehmet Gunes, Ayse Sap, Serkan Karakaya, Mehmet Yaman, Yusuf Dilgin
Summary: A sensitive electrochemical method was developed for the determination of hydroxylamine (H-A) using a curcumin-modified pencil graphite electrode prepared with the electropolymerization of curcumin (PolyCurc-PGE). Amperometric and cyclic voltammetric measurements were performed based on the electrocatalytic oxidation of H-A at PolyCurc-PGE. The developed amperometric method was successfully applied to determine H-A in pharmaceutical and water samples, and acceptable results were obtained with high accuracy and precision.
Article
Materials Science, Ceramics
Jahir Ahmed, M. Faisal, S. A. Alsareii, Mohammed Jalalah, Mabkhoot Alsaiari, Farid A. Harraz
Summary: In this study, a novel Acetaminophen (AcP) sensor utilizing a Mn2O3-embedded mesoporous silicon nanocomposite fabricated glassy carbon electrode was developed. The sensor showed excellent sensitivity, a wide linear dynamic range, and a very low detection limit. It was also successful in detecting AcP concentration in commercial tablets and checking potential chemical interference. Therefore, this Mn2O3@PSi/GCE sensor assembly is expected to be an effective route in developing an efficient AcP sensor.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Jahir Ahmed, M. Faisal, Mohammed Jalalah, Mabkhoot Alsaiari, S. A. Alsareii, Farid A. Harraz
Summary: A highly sensitive and selective electrochemical catechol sensor based on a novel nanocomposite-modified electrode has been developed and demonstrated. The sensor shows excellent reproducibility, repeatability, and long-term stability in detecting catechol levels in real samples, making it an effective technique for environmental safety.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Physical
S. G. Manjushree, Prashanth S. Adarakatti, Velu Udayakumar
Summary: A non-enzymatic hydrogen peroxide (H2O2) electrochemical sensor based on copper oxide/zirconia nanocomposite (CuO/ZrO2 nanocomposite) was designed and constructed for the first time, showing excellent analytical performance and exceptional selectivity.
Article
Chemistry, Applied
Subramaniyan Vinoth, Sea-Fue Wang
Summary: This study developed an electrochemical sensor using a hybrid nanocomposite material to accurately detect the presence of theophylline in food. The sensor showed a wide linear range, low limit of detection, and high sensitivity. The technique was successfully used to identify theophylline in real food samples such as chocolate, coffee, and black tea.
Article
Materials Science, Multidisciplinary
Asma El Golli, Mosaab Echabaane, Cherif Dridi
Summary: A non-enzymatic amperometric glucose sensor based on Zinc Oxide (ZnO) and copper (Cu) composite membrane was designed. The Cu/ZnO nanocomposite was prepared using sol-gel technique and deposited on Glassy Carbon Electrode (GCE) for sensing electrode fabrication. The sensor exhibited favorable electrocatalytic properties for glucose oxidation in alkaline solution, with wide linear ranges, good sensitivity and selectivity, and fast response time.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Min Hee Joo, So Jeong Park, Sung-Min Hong, Choong Kyun Rhee, Youngku Sohn
Summary: In this study, a large dataset of lanthanide (III) ions' electrochemical behaviors and electrodeposition on bare and terpyridine-functionalized Ti sheets was established. The experimental results demonstrated that the electrodeposited lanthanide materials were similar lanthanide complexes, which could be valuable for understanding lanthanide ions' electrochemical behaviors and improving recovery methods.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Engineering, Environmental
Nilesh S. Dumore, Mausumi Mukhopadhyay
Summary: The PtNPs-SeNPs-FTO nanocomposites, developed as an electrochemical sensor via electrochemical deposition method, were used for hydrogen peroxide detection. Morphological and structural studies confirmed the synthesis and growth of the nanocomposites on FTO substrate. The synthesized PtNPs and SeNPs showed nano-flower and spherical morphology, respectively. The nanocomposites exhibited a wide range of linear concentration response and fast response time, with high selectivity towards hydrogen peroxide.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Analytical
Sinem Evli, Deniz Aktas Uygun
Summary: In this study, 2-dimensional graphene oxide-titanium disulfide (GO/TiS2) nanolayers were synthesized and investigated for their surface and size properties using transmission electron microscopy (TEM) technique. These nanolayers were used to modify the screen-printed electrode surface and applied as a micro-medium for Trametes versicolor laccase. The resulting enzyme biosensor demonstrated a wide linear range, low detection limit, high selectivity, and excellent performance in real food samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Electrochemistry
Lin Fu, Xuexia Wang
Summary: In this study, a CuO@Ta2O5 nanocomposite was synthesized and utilized as a chrysin sensor to improve chemical stability and sensing capabilities. The results showed that the CuO@Ta2O5/GCE exhibited high sensitivity, selectivity, stability, and accuracy in chrysin determination due to the formation of a heterointerface between CuO and Ta2O5 nanostructures. The practicality of the proposed electrochemical sensor in real samples was confirmed, with acceptable recovery rates and RSD values, demonstrating its potential use in pharmaceutical and biological sample analysis.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2021)
Article
Chemistry, Analytical
Mengmeng Guo, Na Luo, Yueling Bai, Zhenggang Xue, Qingmin Hu, Jiaqiang Xu
Summary: A porous heterostructure WO3-C/In2O3 was designed and prepared for a miniature H2 sensor, which showed higher response value, lower operating temperature, fast response-recovery speed, and low limit of detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Feng Hu, Hui Hu, Yuting Li, Xiaohui Wang, Xiaowen Shi
Summary: Arsenic contamination in water bodies is a significant health risk. This study developed a chitosan-catechol modified electrode for rapid and accurate detection of trace amounts of arsenic. The modified electrode demonstrated good detection capability and resistance to ionic interference, making it suitable for in situ detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Yantao Zhang, Qian Liu, Tao Tian, Chunhua Xu, Pengli Yang, Lianju Ma, Yi Hou, Hui Zhou, Yongjun Gan
Summary: In this study, a lysosome-targeting buffering fluorogenic probe (Lyso-BFP) was designed and synthesized, demonstrating excellent photostability, pH specificity, and responsiveness to lysosomal acidification in living cells. The performance of Lyso-BFP in pH sensing was attributed to the inhibition of the photo-induced electron transfer process. Lyso-BFP allowed for wash-free imaging and long-term real-time monitoring of lysosome pH changes based on its off-on fluorescence behavior and buffer strategy.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Wei Cai, Wenbo Sun, Jiayue Wang, Xiaokui Huo, Xudong Cao, Xiangge Tian, Xiaochi Ma, Lei Feng
Summary: In this study, a near-infrared fluorescent probe HCBG was developed for imaging of alpha-GLC. HCBG exhibited excellent selectivity and sensitivity towards alpha-GLC in complex bio-samples, and showed good cell permeability for in situ real-time imaging. Through the high-throughput screening system established by HCBG, a natural alpha-GLC inhibitor was successfully isolated and identified. This study provides a novel fluorescence visualization tool for discovering and exploring the biological functions of diabetes-related gut microbiota, and a high-throughput screening approach for alpha-GLC inhibitor.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Trey W. Pittman, Xi Zhang, Chamindie Punyadeera, Charles S. Henry
Summary: Heart failure is a growing epidemic and a significant clinical and public health problem. Researchers have developed a portable and affordable diagnostic device for heart failure that can be used at the point-of-care, providing a valid alternative to current diagnostics approaches.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Anders O. Tjell, Barbara Jud, Roland Schaller-Ammann, Torsten Mayr
Summary: An optical hydrogen peroxide sensor based on catalytic degradation and the detection of produced oxygen is presented. The sensor offers higher resolution and better sensitivity at lower H2O2 concentrations. By removing O2 from the sample solution, a more sensitive O2 sensor can be used for measurement. The sensor has been successfully applied in a flow-through cell to measure H2O2 concentration in different flow rates.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Seong Jae Kim, Ji-hun Jeong, Gaabhin Ryu, Yoon Sick Eom, Sanha Kim
Summary: Surface-enhanced Raman spectroscopy (SERS) is a high-sensitivity, label-free detection method with various analytical applications. Researchers have developed a hydrophobic SERS substrate based on engineered carbon nanotube arrays (CNT-SERS) and studied the role of structural design at both micro and nanoscales. The substrate demonstrated controlled self-enrichment capability and enhanced sensitivity, with a significant increase in the SERS signal. The study also proposed a theoretical model and a concentration strategy inspired by plants for analyte deposition on microarrays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Dan Zhao, Renjun Jiang, Xiaoqiang Liu, Subbiah Alwarappan
Summary: In this study, a novel ternary composite material was constructed by assembling cerium vanadate nanorods on reduced graphene oxide-microcrystalline cellulose nanosheets, and it was used for real-time monitoring of the concentration of superoxide anions in vivo. The ternary composite showed excellent conductivity, large surface area, and abundant active sites, leading to a wider linear range, high sensitivity, low detection limit, and fast response time for superoxide anion detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Tengfei Wang, Liwen Wang, Guang Wu, Dating Tian
Summary: In this study, a covalent organic framework material TaTp-COF with porous and uniform spheres was successfully prepared via hydrothermal reaction, and it was found to significantly enhance the aggregation-induced emission (AIE) of berberine. The unique emission properties of berberine on TaTp-COF were studied and utilized for the sensitive detection of berberine.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Lin Li, Yilei Ding, Lei Xu, Shuoran Chen, Guoliang Dai, Pengju Han, Lixin Lu, Changqing Ye, Yanlin Song
Summary: In this study, a novel TTI based on a ratiometric fluorescent nanosensor is designed, which has the advantages of high accuracy and low cost. Experimental and theoretical investigations confirm its pH responsiveness and demonstrate its good sensitivity and reliability. By monitoring the total volatile basic nitrogen, this TTI can accurately predict food spoilage and can be adaptively modified for different types of food. The TTI based on this nanosensor enables visual monitoring of food quality.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Fangju Chen, Xueting Wang, Wei Chen, Chenwen Shao, Yong Qian
Summary: Lung cancer is the second most common malignant tumor worldwide. Drug resistance in lung cancer leads to treatment failure and recurrence in majority of patients. This study developed a fluorescent prodrug that can be activated in cancer cells to release drugs, and its signal can be tracked by imaging. It shows a unique autophagy-driven ferroptosis effect, indicating its potential for targeting drug-resistant cancer cells.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Weichao Li, Qiming Yuan, Zhangcheng Xia, Xiaoxue Ma, Lifang He, Ling Jin, Xiangfeng Chu, Kui Zhang
Summary: This study developed a high-performance gas sensor for formaldehyde detection by modifying ZnSnO3 with ZnO QDs and SnO2 QDs. The modified sensor showed improved sensing response and lower working temperature. The presence of ZnO QDs formed rich heterojunctions, increased surface area, and provided oxygen deficiency for formaldehyde sensing reaction, thus enhancing the sensor performance. This research provides an alternative method to enhance the sensing properties of MOS by QDs modification.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Joung-Il Moon, Eun Jung Choi, Younju Joung, Jin-Woo Oh, Sang-Woo Joo, Jaebum Choo
Summary: A novel nanoplasmonic substrate was developed for biomedical applications, which showed strong hot spots for detecting biomarkers at low concentrations. The substrate, called AuNPs@M13, was made by immobilizing 60 nm gold nanoparticles onto the surface of an M13 bacteriophage scaffold. It demonstrated higher sensitivity and lower limit of detection compared to commercially available assays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Ning Li, Ya Zhang, Ying Xu, Xiaofang Liu, Jian Chen, Mei Yang, Changjun Hou, Danqun Huo
Summary: The molecular subtype of breast cancer guides treatment and drug selection. Invasive tests can promote cancer cell metastasis, so the development of high-performance, low-cost diagnostic tools for cancer prognosis is crucial. Liquid biopsy techniques enable noninvasive, real-time, dynamic, multicomponent, quantitative, and long-term observations at the cellular, genetic, and molecular levels. A Cu-Zr metal-organic framework (MOF) nanoenzyme with monatomic Cu attachment has been synthesized and proven to have high catalytic performance. The sensor constructed using this nanoenzyme shows potential for accurate classification of breast cancer serum samples.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Jeongmin Kim, Hyemin Kim, Seunghyun Park, Hyeonaug Hong, Yong Jae Kim, Jiyong Lee, Jaeho Kim, Seung-Woo Cho, Wonhyoung Ryu
Summary: This study presents a method to fabricate independently functioning microneedle (MN) electrodes with narrow intervals for high precision electrochemical sensing. The optimized mixture of photocurable polymer and single-wall carbon nanotubes was used to mold single composite MNs, which were then attached to pre-patterned electrodes. Plasma etching and electropolymerization were performed to enhance the electrochemical activity, and Prussian blue and glucose oxidase were electrodeposited on the MNs for glucose detection. The MN electrodes showed good sensitivity and linearity, and the feasibility of glucose detection was demonstrated in an in vivo mouse study.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)