Article
Polymer Science
Keke Zhi, Zhe Li, Han Luo, Yitong Ding, Feiyan Chen, Yongxiang Tan, Hongrui Liu
Summary: In this study, a molecularly imprinted polymer (MIP) was synthesized using quercetin as the template and characterized. The MIP showed high selectivity and specific recognition towards quercetin, with an adsorption capacity of above 90% after five regeneration cycles, indicating potential application for selective adsorption of quercetin.
Article
Chemistry, Applied
Marziyeh Poshteh Shirani, Behzad Rezaei, Ali A. Ensafi, Mohammad Ramezani
Summary: A modern optical sensor based on environmentally friendly molecularly imprinted polymer coated on silica-carbon quantum dots was developed for rapid and efficient detection of the common chemical contaminant indoxacarb in environmental and biological samples. The sensor showed a linear relationship between fluorescence quenching effect and increased indoxacarb concentration in the range of 4-102 nM, with a detection limit of 1 nM and good precision. The applicability of the sensor for indoxacarb quantification in samples was verified with high recoveries and low relative standard deviation.
Review
Chemistry, Analytical
Myriam Diaz-Alvarez, Antonio Martin-Esteban
Summary: This paper reviews the development of optical sensors using a combination of quantum dots and molecularly imprinted polymers. These sensors overcome the limitations of traditional analytical methods and improve sensor selectivity and sensitivity.
Article
Engineering, Environmental
Juzhao Liu, Qiang Yuan, Guoyin Kai, Yujie Fu, Qi Cui
Summary: In this study, a molecularly imprinted polymer (SPCC-CSL-MIPs) with specific selectivity for celastrol was successfully prepared using a porous cellulose microsphere carrier based on traditional Chinese medicine waste. The structure and adsorption performance of SPCC-CSL-MIPs were investigated and analyzed using various techniques. Experimental results showed that the SPCC-CSL-MIPs had a high adsorption capacity of 14.38 mg/g and a good imprinting factor of 2.36. The prepared SPCC-CSL-MIPs were able to maintain a stable adsorption performance of 77.98% after 5 cycles. These results indicate that SPCC-CSL-MIPs can be used as an excellent adsorbent for efficient celastrol enrichment and separation from complex matrices and significantly increase the content of celastrol in T. wilfordii extract from 0.46% to 3.87%.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Xian Liu, Xiaoya Li, Lei Zhu, Xun Wang
Summary: The research shows that MI-Ag-TiO2 prepared by one-step molecular imprinting method has excellent photocatalytic performance, with high degradation efficiency for ethyl paraben, and higher selectivity compared to other catalysts.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Biochemistry & Molecular Biology
Vanessa R. A. Ferreira, Manuel A. Azenha, Carlos M. Pereira, Antonio F. Silva
Summary: This study demonstrated for the first time the possibility of generating organically modified hollow TiO2 microspheres via a simple sol-gel synthesis, and made significant progress in selective adsorption and molecular imprinting.
Review
Polymer Science
Abderrahman Lamaoui, Abdellatif Ait Lahcen, Aziz Amine
Summary: This review explores the potential of molecularly imprinted polydopamine (MIPda) in cutting-edge sensing applications, including its preparation, sensing applications, and synthesis methods. It also discusses the challenges and prospects for future developments in this research field.
Article
Nanoscience & Nanotechnology
Menglin Song, Huanhuan Sun, Jing Yu, Yu Wang, Mingfang Li, Meichuan Liu, Guohua Zhao
Summary: A label-free nonenzymatic PEC sensor for detecting microcystin-LR has been developed based on visible-light-responsive Ti-Fe-O nanotubes and reduced graphene oxide. The sensor shows high sensitivity with a low detection limit of 10 pM, and demonstrates high selectivity towards MC-LR.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Analytical
Dinh-Hai-Ngan Nguyen, Quang-Hai Le, Tuan-Linh Nguyen, Van-Tuan Dinh, Hoai-Nam Nguyen, Hong -Nam Pham, Tien-Anh Nguyen, Luong-Lam Nguyen, Thi-Mai-Thanh Dinh, Van-Quynh Nguyen
Summary: This work presents the development and application of micropatterned molecular imprinting in a conductive polymer film for the detection of diclofenac molecules. The technique involves combining nanosphere lithography and electrochemical polymerization to generate a nanos-tructured polymer on a glassy carbon electrode. The resulting molecularly imprinted polymer electrode shows good recognition properties for diclofenac molecules in phosphate-buffered saline solution, with increased sensitivity and a lower limit of detection compared to a non-molecular imprinted polymer electrode.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Narges Shaabani, Nora W. C. Chan, Abebaw B. Jemere
Summary: An electrochemical sensor for selective and sensitive detection of the drug naloxone was developed using molecular imprinting and sol-gel techniques. The sensor showed excellent linear response and detection limit for NLX, as well as good selectivity and reproducibility. It demonstrated successful application in measuring NLX in synthetic urine samples with high recoveries.
Article
Chemistry, Analytical
Fatemeh Rezaei, Narges Ashraf, Gholam Hossein Zohuri
Summary: The research presents a sol-gel approach for synthesizing hydrophilic core-shell L-tryptophan imprinted polysilicate. The nanocomposite was characterized using various techniques and used to construct an electrochemical sensor for Trp detection. The sensor showed a linear calibration plot and low LOD and LOQ values. The applicability of the sensor was demonstrated in the analysis of real samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Ana-Mihaela Gavril, Elena-Bianca Stoica, Tanta-Verona Iordache, Andrei Sarbu
Summary: Molecular imprinting (MI) is a common method to produce artificial recognition sites similar to antibodies inside or at the surface of a polymeric material. Scholars worldwide have developed various types of molecularly imprinted polymers (MIPs) for applications in catalysis, separation sciences, and monitoring/diagnostic devices for chemicals, biochemicals, and pharmaceuticals.
APPLIED SCIENCES-BASEL
(2022)
Article
Materials Science, Ceramics
Poune Rezaei Machak Poshti, Setareh Habibzadeh, S. Mojtaba Amininasab
Summary: A new molecular imprinted polymer based on magnetic graphene oxide nanoparticles (MGMIP) was synthesized by sol-gel procedure for the adsorption of creatinine. The distinguishing features of this study include the room temperature preparation of the polymer and the absence of an initiator. The maximum adsorption capacity of MGMIP was found to be 75 mg/g at pH 7, an initial creatinine concentration of 100 mg/l, and 20 minutes of adsorption time.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Nur Asyiqin Zulkefli, Faizatul Shimal Mehamod, Abdul Mutalib Md Jani, Nur Habibah Safiyyah Jusoh, Faiz Bukhari Mohd Suah
Summary: In this study, we aimed to develop a rapid and selective electrochemical sensor for the detection of picolinic acid. The performance of the sensor was evaluated using differential pulse voltammetry, and interference analysis was conducted to assess its selectivity. The results demonstrate that this sensor has significant potential for use in the rapid and selective detection of picolinic acid by electrochemical analysis.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Qidi Pan, Zhe Gao, He Meng, Xianghua Guo, Meitian Zhang, Yiwei Tang
Summary: A novel molecularly imprinted upconversion fluorescence probe (UCNP@MIFP) for sulfonamide sensing was prepared by Pickering emulsion polymerization using UCNP@SiO2 particles as the stabilizer and sulfamethazine/sulfamerazine as the co-templates. The synthesized probe was characterized and showed good adsorption capacity and fast kinetic feature for the template. The UCNP@MIFP exhibited broad-spectrum molecular recognition capability and low limits of detection, making it potentially valuable for detecting sulfonamide residues in food and environmental water.
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)