Article
Engineering, Environmental
Mohammed F. Hamza, Hamed Mira, Yuezhou Wei, Shunyan Ning, Eric Guibal, Abd-Allah S. El-Etrawy, Saly R. El Dakkony
Summary: The functionalization of chitosan with pyrazolinone derivative allows designing a sorbent with high efficiency and selectivity for mercury sorption. The sorbent demonstrates improved stability and selectivity compared to crosslinked chitosan. It can selectively adsorb mercury ions from contaminated groundwater and reaches sorption equilibrium in 40 minutes under acidic conditions.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Chemistry, Analytical
Blazej Galinski, Ewa Wagner-Wysiecka
Summary: In this study, diazocrowns of different sizes and different linker types were used as lead(II) selective optodes for the first time. The optode with an 18-membered crown and an oligoether linker showed the best results, making it suitable for lead(II) detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Spectroscopy
S. R. Patra, A. Bali, M. Saha
Summary: A rapid, sensitive, cost effective and reproducible first-order derivative spectrophotometric method was developed for the estimation of gefitinib in bulk and in its marketed formulation. The method, involving 20 parametric variations, was selected based on its stability indicating potential in force degraded solutions and assessed using peak-zero (P-0) and peak-peak (P-P) techniques. Validation showed excellent linearity in the concentration range of 5-50 μg/mL with a correlation coefficient (r(2)) of 0.999.
JOURNAL OF APPLIED SPECTROSCOPY
(2021)
Article
Biochemistry & Molecular Biology
Iwona Zawierucha, Anna Nowik-Zajac, Jakub Lagiewka, Grzegorz Malina
Summary: This study tested the capability of polymer inclusion membranes (PIMs) with a calix[4]pyrrole derivative as an ion carrier to dispose mercury ions from industrial wastewater and evaluated the factors affecting its removal efficiency. The results showed that optimally designed PIMs had high removal efficiency of mercury ions and excellent repeatability.
Article
Chemistry, Analytical
Fatimah A. M. Al-Zahrani
Summary: Given the importance of environmental preservation, the discovery of potentially lethal heavy metals like Hg(II) has attracted significant attention. A fluorescence 'on-off' sensor, PTZHC, was synthesized to detect Hg2+ ions. The sensor successfully detected Hg2+ even in the presence of other metal ions. The detection limit was estimated to be 2.5 x 10(-8) M, and the sensor exhibited a 1:1 stoichiometric binding to Hg2+ in a CH3CN/H2O (9:1, v/v) suspension. Time-dependent density functional theory (TD-DFT) and DFT were used to investigate the bridged effect on geometric and optoelectronic characteristics.
Article
Spectroscopy
Kiarash Keyvan, Mahmoud Reza Sohrabi, Fereshteh Motiee
Summary: This study successfully applied CWT and DS methods for the simultaneous spectrophotometric estimation of SOF and DAC in synthetic mixtures and tablet formulations. The results were accurate and reliable for real samples, demonstrating the effectiveness of these methods in complex matrix analysis.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Spectroscopy
Hanan I. EL-Shorbagy, Fathalla Belal
Summary: A novel spectrophotometric method was developed for simultaneous analysis of sofosbuvir and ledipasvir in their combined dosage forms. This method offers the advantages of simplicity, rapidity, and sensitivity, making it suitable for use in the COVID-19 crisis.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Review
Environmental Sciences
Xiang Cheng, Ting Luo, Feiyi Chu, Bin Feng, Shibo Zhong, Fei Chen, Jie Dong, Wenbin Zeng
Summary: This review summarizes the recent advances in multifunctional materials for detection, detoxification, adsorption, and removal of mercury ions, discusses the advantages and disadvantages of different types of sensors, and points out the future development direction.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Analytical
Supacha Wirojsaengthong, Dumrongsak Aryuwananon, Wanlapa Aeungmaitrepirom, Buncha Pulpoka, Thawatchai Tuntulani
Summary: A highly sensitive colorimetric paper-based optode for thiocyanate determination in urine samples was developed, with optimized conditions yielding high selectivity and sensitivity, and successful application in detecting thiocyanate in urine samples from non-smokers and smokers. The sensor is simple, low-cost, portable, and easy to use without the need for complicated instruments.
Article
Mathematics, Applied
Jin-Liang Wang, Hui-Feng Li
Summary: MDD, as a new substitute for FD, better reflects memory effects and is more reasonable in modeling heat diffusion processes. It offers flexibility in choosing memory times and weighted functions for different media, making it suitable for exploring various diffusion problems.
APPLIED MATHEMATICS AND COMPUTATION
(2021)
Article
Chemistry, Inorganic & Nuclear
Ghodrat Mahmoudi, Ennio Zangrando, Barbara Miroslaw, Atash V. Gurbanov, Maria G. Babashkina, Antonio Frontera, Damir A. Safin
Summary: A new Hg(II) coordination compound with a unique pentacoordinated structure was synthesized, forming a 1D polymeric chain and a 2D layer with a binodal 3,4-connected hcb topology. The crystal packing is mainly characterized by intermolecular contacts, including H?H, H?C, H?N, H?S and C?C interactions.
INORGANICA CHIMICA ACTA
(2021)
Article
Neurosciences
Yang Zhao, Xiang Xiao, Yi-Han Jiang, Pei-Pei Sun, Zong Zhang, Yi-Long Gong, Zheng Li, Chao-Zhe Zhu
Summary: The study describes the theoretical basis and algorithm for optimizing optode arrangement using TBA. Experimental results demonstrate that this method provides more accurate, consistent, and efficient optode arrangements for fNIRS group imaging compared to the 10/20 method.
HUMAN BRAIN MAPPING
(2021)
Article
Chemistry, Analytical
Bambang Kuswandi, Khairinna Prihandini, M. Amrun Hidayat
Summary: A lab-on-a-tip (LOT) sensing platform using a disposable pipette tip has been developed for the detection of lead. This platform is based on optical fiber spectroscopy and uses a polymeric inclusion membrane (PIM) as a chemical sensor to detect Pb(II) in herbal samples. The results show that the LOT method has good detection performance and is in agreement with the traditional method FAAS.
ANALYTICAL LETTERS
(2023)
Article
Biochemistry & Molecular Biology
Amitesh Malhotra, Banu Ormeci
Summary: Early detection and monitoring of algal blooms and potentially toxic cyanobacteria in source waters are crucial. This study used UV-Vis spectrophotometry and longer pathlengths, and derivative spectrophotometry for the detection of a mixed-culture of Microcystis aeruginosa and Chlorella vulgaris in water. The results showed a strong linear relationship between concentration and absorbance, with the cyanobacterial peak identified separately. The lowest detection limit was significantly improved using derivative spectrophotometry, making it a potentially viable method for early detection of mixed algal cultures.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
(2023)
Article
Engineering, Environmental
Yaoling Zhang, Lijie Zhang, Xujun Liang, Quanying Wang, Xiangping Yin, Eric M. Pierce, Baohua Gu
Summary: This study demonstrated that Cu(II) can competitively exchange with Hg(II) when bound to CYS, GSH, or DOM, while Zn(II) and Ca(II) do not have the same effect. Additionally, EDTA can facilitate the exchange of Hg(II) by Cu(II), Zn(II), and Ca(II).
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Ali A. Ensafi, Sahar Haghighat Sefat, Nafiseh Kazemifard, Behzad Rezaei
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
(2019)
Article
Chemistry, Multidisciplinary
Fahimeh Rasolzadeh, Payman Hashemi, Behrooz Rezaei
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
(2019)
Article
Materials Science, Multidisciplinary
Bahareh Rezaei, Faramarz Afshar-Taromi, Zahed Ahmadi, Shima Amiri-Rigi, Niloofar Yousefi
Article
Chemistry, Analytical
Tahereh Zargar, Mohammad T. Jafari, Taghi Khayamian
Article
Physics, Nuclear
S. Heidari, B. Rezaei, J. K. Sarma, G. R. Boroun
Article
Polymer Science
Seyedeh Nooshin Banitaba, Dariush Semnani, Elahe Heydari-Soureshjani, Behzad Rezaei, Ali Asghar Ensafi
POLYMER INTERNATIONAL
(2019)
Article
Chemistry, Applied
Nafiseh Kazemifard, Ali A. Ensafi, Behzad Rezaei
Article
Chemistry, Multidisciplinary
Maryam Zakery, Ali A. Ensafi, Behzad Rezaei
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
(2020)
Article
Chemistry, Analytical
Parisa Nasr-Esfahani, Ali A. Ensafi, Behzad Rezaei
SENSORS AND ACTUATORS B-CHEMICAL
(2019)
Article
Chemistry, Analytical
Ali A. Ensafi, A. Mahmoodi, B. Rezaei
SENSORS AND ACTUATORS B-CHEMICAL
(2019)
Article
Nanoscience & Nanotechnology
Farshad Tavakoli, Behzad Rezaei, Ahmad Reza Taghipour Jahromi, Ali A. Ensafi
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Biochemical Research Methods
N. Salandari-Jolge, Ali A. Ensafi, Behzad Rezaei
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2020)
Article
Chemistry, Analytical
Aram Mahmoodi, Ali A. Ensafi, Behzad Rezaei
Article
Environmental Sciences
Davood Khayyami, Ali Asghar Ensafi, Nafiseh Kazemifard, Behzad Rezaei
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Spectroscopy
Sudabe Mandani, Behzad Rezaei, Ali Asghar Ensafi
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2020)
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)
