Article
Chemistry, Analytical
Li Ruiyi, Jia Hui, Li Nana, Xu Dan, Li Zaijun
Summary: The paper describes the synthesis of gold-graphene hybrid using histidine-functionalized graphene quantum dot as the linker between gold and graphene. The hybrid exhibits good dispersion and catalytic activity. By coupling with DNA cycling signal amplification, the hybrid is able to detect chlorpyrifos in fruits with high sensitivity and selectivity.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Acoustics
Reshma Kaimal, Patel Nishant Mansukhlal, Belqasem Aljafari, Sambandam Anandan, Muthupandian Ashokkumar
Summary: The gold-loaded boron-doped graphene quantum dots interface was prepared via ultrasound-aided reduction method for electrochemical monitoring of guanine-GUA and adenine-ADE in DNA. The resulting sensor showed wide linear range, low detection limit, excellent sensitivity and selectivity, as well as prominent selectivity, reproducibility, and stability.
ULTRASONICS SONOCHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Maryam Zamani, Nahid Tavakkoli, Nasrin Soltani
Summary: A simple and low-cost electrochemical sensor based on graphene quantum dots (GQDs) was developed for the measurement of the anti-cancer drug MTX. The sensor was modified with gold nanoparticles and thiol organic compounds on GQDs, showing improved detection performance. The results demonstrate that the prepared sensor has better application potential for MTX measurement compared to previous studies.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Bhargav D. Mansuriya, Zeynep Altintas
Summary: An ultrasensitive enzyme-free electrochemical nano-immunosensor based on a screen-printed gold electrode (SPGE) modified with graphene quantum dots (GQDs) and gold nanoparticles (AuNPs) was developed for the early diagnosis of acute myocardial infarction (AMI) by detecting cardiac troponin-I (cTnI). The sensor was capable of quantifying cTnI using square-wave voltammetry (SWV), cyclic voltammetry (CV), electron impedance spectroscopy (EIS) and amperometry in a wide concentration range. The sensor showed high sensitivity, specificity, and rapid detection time, making it promising for on-site AMI detection.
Article
Chemistry, Analytical
Xiudan Hou, Wei Wu, Fangyuan Zhao, Wancui Xie, Qingli Yang
Summary: The proposed electrochemical sensor method based on the ZrO2/CS/rGOA-GCE electrode allows for rapid and sensitive detection of luteolin, with a low detection limit and a wide linear range.
Article
Chemistry, Multidisciplinary
Tushar Kant, Kamlesh Shrivas, Indrapal Karbhal, Monisha, Sanjay Yadav, Tikeshwari, Sushama Sahu, Yugal Kishor Mahipal, Vellaichamy Ganesan
Summary: Recently, hydrogen peroxide (H2O2) has been used as a disinfectant in sanitizers for cleaning hands, and solid surfaces of hospitals, offices and homes to prevent the spread of the COVID-19 virus. Effluents from various sources should be monitored for their H2O2 content to avoid environmental pollution. The developed graphene-printed paper electrode showed a wide linear range and a better limit of detection for the determination of H2O2, making it a rapid, economical, flexible, and eco-friendly method for analyzing H2O2 in wastewater.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Applied
Reena K. Sajwan, Pratima R. Solanki
Summary: A rapid and sensitive hybrid nanosensor using graphene quantum dots and gold nanoparticles was developed for detecting gentamicin in milk and egg samples. The nanosensor showed excellent recovery efficiency and can be used as a promising tool for speedy monitoring of food quantity.
Article
Nanoscience & Nanotechnology
Hamidreza Rahmanian, Zarrin Es'haghi, Mehdi Dadmehr
Summary: A sensitive and selective electrochemical sensor was fabricated for the determination of erlotinib. The sensor utilized a graphite rod electrode modified with nitrogen-doped graphene quantum dots (N-GQDs) and a ternary nanohybrid consisting of copper nanoparticles, polyaniline, and graphene oxide (N-GQDs/CuNPs-PANI@GO). The PANI and CuNPs were simultaneously established on the GO surface using in situ oxidative polymerization. The sensor exhibited excellent electrocatalytic activity towards erlotinib, with a wide linear detection range, low detection limit, and high sensitivity. Additionally, the sensor demonstrated good stability, reproducibility, and repeatability, and was successfully applied to monitor erlotinib in biological samples.
Article
Chemistry, Analytical
Patrycja Wilczewska, Joanna Breczko, Diana M. Bobrowska, Monika Wysocka-Zolopa, Jakub Goclon, Anna Basa, Krzysztof Winkler
Summary: The influence of graphene quantum dots (GQDs) on the physicochemical properties of polypyrrole nanoparticles (PpyNPs) was investigated experimentally and theoretically. The synthesis of the non-covalent PpyNPs/ GQDs material was based on the known procedure of chemical pyrrole polymerization. The obtained hybrids were in the form of spherical polymeric particles coated with GQDs, and the morphology and porosity of the materials were influenced by the polymerization conditions. The electrode processes on the electrode modified with the PpyNPs/GQDs composite were found to be significantly different from those involving pristine PpyNPs, with faster charge transfer processes and improved electrochemical behavior observed for the composite material.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Ying He, Fangxin Hu, Jinwen Zhao, Guomin Yang, Yuanyuan Zhang, Shihong Chen, Ruo Yuan
Summary: A novel dual-signal combined nanoprobe with two different types of nanoparticles as ECL probes and hydrogen peroxide as a bifunctional moderator was designed for enzyme sensing analysis. In the presence of organophosphorus compounds, enzyme activity was inhibited, leading to changes in ECL signals. This integrated system provides a new pathway for ratiometric ECL systems involving enzyme catalytic amplification.
ANALYTICAL CHEMISTRY
(2021)
Review
Chemistry, Inorganic & Nuclear
Pavithra V. Ravi, Vinodhini Subramaniyam, Neha Saravanakumar, Ajay Pattabiraman, Moorthi Pichumani
Summary: Graphene Quantum Dots (GQDs) are a breakthrough material with optoelectronic properties, widely used in various applications such as agriculture, biomedical, sensors, energy storage, water desalination, and environmental remediation. Functionalization of GQDs enhances their biocompatibility, making them suitable for use in biotechnology, immunology, biochemistry, and diagnostics. The nanoscale morphology of GQDs can alter device structure and simplify functionality, leading to potential applications in wearable and portable sensors. This review explores functionalization strategies of GQDs and their applications in different fields.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Shraddha Borse, Sanjay Jha, Z. V. P. Murthy, Suresh Kumar Kailasa
Summary: In this study, bluish-green fluorescent copper nanoclusters (Cu NCs) were successfully synthesized using Justicia adhatoda plant extract as a template for detecting biomolecules. The Cu NC-based fluorescent probe exhibited high sensitivity in detecting myoglobin and l-thyroxine.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Engineering, Electrical & Electronic
Wenzheng He, Xiongying Ye, Tianhong Cui
Summary: This paper introduces a method to improve the selectivity of electrochemical sensors by introducing a heterogeneous electrode interface and modifying graphene and gold nanoparticles on a flexible substrate. The sensor shows low detection limits and is suitable for detecting dopamine and uric acid at the lowest concentration in the human body.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Analytical
Haoran Ge, Xiaofu Wang, Junfeng Xu, Han Lin, Huiqian Zhou, Tingting Hao, Yangbo Wu, Zhiyong Guo
Summary: The dual-mode electrochemical biosensor designed using CRISPR/Cas12a system enables sensitive detection of genetically modified soybean without the need for PCR amplification, showing high accuracy and reliability. The detection method is simple to operate, with good stability and selectivity, suitable for rapid testing at room temperature.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Natchaya Malarat, Wipawee Oin, Kotchaphan Kanjana, Fonthip Makkliang, Mohamed Siaj, Sujittra Poorahong
Summary: A simple and highly sensitive square wave voltammetric method using a modified pencil graphite electrode for the determination of methylparaben (MP) was reported. The modified electrode showed enhanced electroactivity and antifouling for the oxidation of MP compared to the unmodified electrode. The modified electrode exhibited a stable response, high reproducibility, and repeatability, with a better limit of detection than the unmodified electrode.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Jing Tang, Baokang Jin
ANALYTICAL METHODS
(2015)
Article
Food Science & Technology
Jing Tang, Wei Wang, Shengbiao Zheng, Yan Zhang, Jumeng Wei, Jianfei Wang
FOOD ANALYTICAL METHODS
(2016)
Article
Chemistry, Analytical
Jing Tang, Baokang Jin
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2016)
Article
Food Science & Technology
Jing Tang, Yueyuan Mao, Jiahao Guo, Zirong Li, Chen Zhang, Baokang Jin
FOOD ANALYTICAL METHODS
(2018)
Article
Electrochemistry
Jing Tang, Xiaoqing Ma, Jing Liu, Shengbiao Zheng, Jianfei Wang
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2018)
Article
Chemistry, Analytical
Jing Tang, Sixun Jiang, Yu Liu, Shengbiao Zheng, Lei Bai, Jiahao Guo, Jianfei Wang
Article
Chemistry, Analytical
Shengbiao Zheng, Jiaqi Hu, Xue Cui, Tao Hu, Yuyang Zhang, Jiahao Guo, Jing Tang, Xuchun Wang
Article
Chemistry, Analytical
Jing Tang, Yu Liu, Jiaqi Hu, Shengbiao Zheng, Xuchun Wang, Hongping Zhou, Baokang Jin
MICROCHEMICAL JOURNAL
(2020)
Article
Materials Science, Multidisciplinary
Jing Tang, Sheng-Biao Zheng, Si-Xun Jiang, Jie Li, Teng Guo, Jia-Hao Guo
Summary: In this study, Co/NCNTs composites were successfully synthesized and exhibited superior electrocatalytic performance for TBHQ oxidation with high sensitivity and low detection limit. These composites not only showed high electrochemical performance under laboratory conditions, but also successfully detected TBHQ content in edible oil samples.
Article
Materials Science, Multidisciplinary
Jing Tang, Zhen-Zhen Hui, Tao Hu, Xin Cheng, Jia-Hao Guo, Zi-Rong Li, Hao Yu
Summary: By synthesizing the ZIF67-OMC composite and using it as a modified material for electrochemical sensors, superior electrocatalytic performance was achieved, especially for the oxidation reaction of acetaminophen (AP).
Article
Chemistry, Physical
Jing Tang, Songlin Zhang, Jiahao Guo, Huachen Zhang
Summary: Transition metal sulfides, such as rGO-modified VS4, have been synthesized as efficient and stable composite catalysts for the oxygen reduction reaction (ORR). The catalyst exhibits superior ORR activity, methanol tolerance, and long-term durability due to the strong bond cooperation between VS4 and rGO.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Shengbiao Zheng, Jialong Fan, Feilong Yin, Jie Chen, Zhenzhen Hui, Jing Tang, Xuchun Wang, Jiahao Guo
Summary: A heterostructured TiO2/Co nanoparticle/N-doped carbon nanotube (TiO2/Co/NCNT) nanomaterial was obtained from ZIF-67@TiO2 through high-temperature calcination in an Ar/H-2 atmosphere. The resulting TiO2/Co/NCNT composite, composed of dodecahedron-like boxes with twisting nanotubes on surfaces, was employed as an electrode for the electrochemical determination of tert-butylhydroquinone (TBHQ). The excellent electrocatalytic performance of the TiO2/Co/NCNT sensor can be attributed to its multi-phase composition, fast electron transfer, and the presence of Co/Ti multi-active sites. The TiO2/Co/NCNT sensor exhibited a broad linearity range from 0.04 to 100 μM, with a low detection limit of 4 nM, as well as stability, anti-interfering ability, and reproducibility. Furthermore, the analytical utility of the TiO2/Co/NCNT sensor was demonstrated by detecting TBHQ in edible oil.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Shengbiao Zheng, Tianna Liu, Nini Zhang, Liang Li, Yanli Zhu, Erhui Zhang, Jing Tang, Jiahao Guo
Summary: In this study, CoNi-bimetal metal-organic framework (CoNi-MOF) nanosheets with a three-dimensional flower-like hierarchical structure were synthesized and used to modify a glassy carbon electrode. The modified electrode showed improved efficiency for the determination of quercetin. The excellent electrochemical performance of the modified electrode can be attributed to the hierarchical structure, large specific surface area, and enhanced electrical conductivity. The analytical utility of the CoNi-MOF sensor for detecting quercetin in human plasma samples was evaluated.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Electrochemistry
Jing Tang, Renhao Liu, Jie Li, Zhenzhen Hui, Shengbiao Zheng, Jiwei Wu, Jiahao Guo, Xuchun Wang, Jianfei Wang
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Chemistry, Analytical
Michel Rocha Baqueta, Augusto Cesar Costa-Santos, Ana Paula Rebellato, Gisele Marcondes Luz, Juliana Azevedo Lima Pallone, Federico Marini, Alexsandro Lara Teixeira, Douglas N. Rutledge, Patricia Valderrama
Summary: This study reports the essential element composition of new Brazilian Canephora coffees and applies chemometric tools for analysis. The results demonstrate the suitability of this method for origin and species discrimination based on the inorganic fraction of coffee.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Mengjie Li, Jiapeng Wang, You Zhou, Yang Chen, Lingying Xia
Summary: A novel photoelectrochemical biosensor based on gold nanoparticles and specific structures was developed for highly sensitive detection of mercury ion. The multiple sandwich structures hindered electron supply and light harvesting, resulting in a weakened PEC signal, while the specific structures extinguished the PEC signal, enabling quantitative detection of Hg2+. The sensor exhibited high selectivity and stability, with potential applications in environmental detection, biological analysis, and medical research.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Mohamed A. Korany, Rasha M. Youssef, Marwa A. A. Ragab, Mostafa A. Afify
Summary: A stability-indicating fit-for-purpose method was developed for the determination of HC, TL, and PS in syrup dosage form. The method successfully separated CL from THY and quantified the analytes using HPLC-DAD. The robustness of the method was assessed through statistical analysis and self-validation.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Lingling Lin, Minyu Li, Ping Li, Chenqing Ye, Huanglong Zhuang, Shaohuang Weng, Feng Chen
Summary: This study developed a highly sensitive and selective electrochemical sensor for simultaneous detection of dopamine and uric acid. The sensor exhibited excellent anti-interference and stability, and could accurately measure dopamine and uric acid in human urine samples.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Peifang Chen, Caiyun Jiang, Zhouping Wang, Hong-zhen Lian, Xiaoyuan Ma
Summary: In this study, a high-performance SERS-active aptasensor was successfully developed for the quantitative analysis of AFB1 in cereal grains, which is of great significance in the field of food safety.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
E. Abas, C. Marina-Montes, C. Perez-Marin, J. Puimedon, J. Anzano
Summary: This study conducted a comprehensive measurement of natural and anthropogenic radionuclides in soil, water, and air in different locations around Deception Island in Antarctica. The results revealed significant levels of 210Pb and anthropogenic 137Cs in soil samples near old human settlements and facilities, as well as detectable levels of 137Cs and 60Co in water samples from old hunting areas. The findings also suggested potential resuspension processes based on higher-than-expected air quality results.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Joao Franciso Allochio, Nayara A. dos Santos, Nathalia dos S. Conceicao, Clara S. D. Baptista, Keyller B. Borges, Valdemar Lacerda Jr, Wanderson Roma
Summary: This study developed a fiber spray ionization mass spectrometry (FSI-MS) method, which shows great potential in detecting illicit drugs. Compared with paper spray ionization mass spectrometry (PSI-MS), FSI-MS demonstrates higher sensitivity in COC detection.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Dina A. Ahmed, Ola G. Hussein, Mamdouh R. Rezk, Mohamed Abdelkawy, Yasmin Rostom
Summary: The main goal of this study was to develop two green chromatographic techniques, HPLC and TLC, for the determination of alcaftadine (ALF) in pharmaceutical formulation and biological samples. The developed HPLC technique showed high efficiency and minimal environmental impact, successfully identifying ALF in the presence of its degradate. The TLC method provided a stability indicating study for ALF and was determined to be safe, green, and eco-friendly.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Abdullah Taner Bisgin
Summary: A green, speedy, and handy method for separation and determination of four commonly used food colorants was established using vortex assisted sequential-simultaneous liquid phase micro-extraction (VA-SS-LPME). The method does not require any instrumental chromatographic techniques. The procedure includes sequential separation steps using different extractants and simultaneous UV-vis spectrophotometric determination steps. The method is environmentally friendly and applicable for determination of colorants in food and pharmaceuticals.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Yifan Zhang, Tong Zhang, Wenjing Ba, Li Liu, Yuan Rao, Xiaodan Zhang, Hanhan Zhang, Xiu Jin
Summary: This paper proposes a novel spectral transfer modelling method based on neural network architecture searching for the asymptomatic prediction of Akizuki pear cork spot disorder. The experiments show that the model by this method is more effective, achieving an accuracy of 82.61%.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Krzysztof Greda, Maja Welna, Anna Szymczycha-Madeja, Pawel Pohl
Summary: For the first time, a dispersive micro-solid phase extraction (D-mu SPE) based on graphene oxide was used for the ultrasensitive determination of Cd. With this method, Cd can be efficiently extracted from a mixture of alkali and alkaline earth metals without the need for an elution step. The combination of D-mu SPE and SAGD OES significantly reduces matrix effects and improves the tolerance of Cd to alkali metals. The method shows simplicity in the measurement system and the commercially available nanosorbent used.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
P. K. Fathima Anjila, G. R. Tharani, Anand Sundaramoorthy, Venkat Kumar Shanmugam, Karthikeyan Subramani, Shanmugavel Chinnathambi, Ganesh N. Pandian, Vimala Raghavan, Andrews Nirmala Grace, Singaravelu Ganesan, Mangaiyarkarasi Rajendiran
Summary: This work proposes a rapid and sensitive spectroscopic method for detecting melamine in food products using rare-earth Terbium-doped Graphene Quantum Dots (Tb-GQDs) synthesized by microwave and simple chemical conjugation methods. The synthesized Tb-GQDs show a spherical shape with a size of approximately 6 nm and a quantum yield of 52%. The maximum detection limit for melamine concentration in milk and milk products is found to be 0.31 μM. The dual emitting Tb-GQDs provide a sensitive and effective platform for real-time detection of melamine in food samples, particularly in milk, and show promising potential in the food industry.
MICROCHEMICAL JOURNAL
(2024)
Review
Chemistry, Analytical
Piyush Dey, Mandeep Kaur, Akhil Khajuria, Dilmeet Kaur, Manpreet Singh, Hema Kumari Alajangi, Neha Singla, Gurpal Singh, Ravi Pratap Barnwal
Summary: Environmental issues, such as the uncontrolled release of dangerous pollutants, have significant impacts on human health. Traditional methods for detecting pollutants require specialized personnel and equipment, but nanotechnology has improved the performance of biosensors. This article discusses the use of nanotechnology in pollutant detection and the associated techniques.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Sa Dong, Qiuyun Shi, Lingjun Guan, Yulong Wang, Pengyan Liu, Cunzheng Zhang, Jianguo Feng
Summary: In this study, a highly sensitive indirect competitive chemiluminescence enzyme immunoassay (icCLEIA) method was developed for the determination of sodium pentachlorophenolate (PCP-Na) and its metabolite pentachlorophenol (PCP). The method showed high specificity and affinity with a detection limit of 0.0032 ng/mL for PCP-Na and 0.0192 ng/mL for PCP. The method had no cross reaction with other chlorophenols compounds except for PCP. The average recoveries in chicken, pork and fish samples were 81.3-105.8% with low coefficient of variation (CV).
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Palaniappan Ilayaraja, Murugan Manivannan, Paramasivam Parthiban
Summary: Nirmatrelvir, an antiviral drug used for the treatment of COVID-19, has been recommended by the World Health Organization. We developed an optimized analytical method for the quantification of Nirmatrelvir and its products, with high sensitivity and a wide linear range. The method also meets the requirements for greenness evaluation.
MICROCHEMICAL JOURNAL
(2024)
