Article
Biochemical Research Methods
Pengqi Guo, Chenming Liu, Fanru Zhong, Mingyang Xu, Yongze Zhao, Xinya Xu, Yu Zhao, Weiming Xue, Ying Xu, Daidi Fan
Summary: In this study, dummy-template molecularly imprinted polymers were prepared and characterized, and an online solid phase extraction-high performance liquid chromatography (SPE-HPLC) analytical system was established for the simultaneous determination of four estrogens in cosmetic samples. The method showed high accuracy, precision, and sensitivity, and was suitable for complex samples analysis.
JOURNAL OF CHROMATOGRAPHY A
(2023)
Article
Chemistry, Analytical
Xinyu Wang, Yan Feng, Haiyan Chen, Yan Qi, Jianrong Yang, Shuang Cong, Yongxin She, Xiaolin Cao
Summary: The study prepared dummy template molecularly imprinted polymers using precipitation polymerization method and characterized the obtained polymers. The polymers showed high adsorption capacity, efficiency and specific recognition ability towards N-nitrosamines. A solid phase extraction process based on the polymers coupled with high performance liquid chromatography-tandem mass spectrometry was established and demonstrated good linearity, low limits of detection and quantification, as well as satisfactory recoveries. The method provided a convenient way to enrich and detect N-nitrosamines in complex food matrix.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Libin Wan, Huoliang Gao, Haidong Gao, Ge Yan, Fayun Wang, Yong Wang, Mantang Chen
Summary: A novel MIP was developed for highly specific recognition of vardenafil, showing stronger binding affinity and capacity. The developed MIP-SPE-LC/MS method successfully extracted trace vardenafil from water samples and can be used for monitoring vardenafil in healthcare products.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Luxiu Li, Ya Cui, Lingling Ren, Chunyang Li, Yehao Liu, Zhongxiu Jin
Summary: A simple and efficient dispersive solid-phase microextraction method based on magnetic dummy molecularly imprinted polymer nanoparticles was developed for the extraction of five phthalate monoesters from human urine samples. The prepared nanoparticles showed high selectivity, good adsorption capacity, excellent reusability, and fast adsorption rates. Furthermore, the method demonstrated good linearity and recovery rates for all five phthalate monoesters in human urine samples.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Applied
Nilawan Surapong, Prachathipat Pongpinyo, Yanawath Santaladchaiyakit, Rodjana Burakham
Summary: An eco-friendly magnetic dual-dummy-template molecularly imprinted polymer (MDDMIP) was synthesized using mixed-valence iron hydroxide, a deep eutectic solvent, and caffeic acid and glutamic acid as binary monomers. The MDDMIP exhibited high adsorption capacities, quick adsorption times, and high imprinting factors for organophosphorus pesticides (OPPs). The MDDMIP was utilized for magnetic solid phase extraction combined with high performance liquid chromatography (HPLC) to detect OPPs in food samples.
Article
Materials Science, Multidisciplinary
Federica Pessagno, Matthew Blair, Mark J. Muldoon, Panagiotis Manesiotis
Summary: In this study, organocatalyst-selective molecularly imprinted polymers were successfully prepared using strong binding affinity. These polymers demonstrated exceptional binding for the organocatalyst targets and were able to reversibly capture the desired compounds from reaction mixtures. Rapid and straightforward solid-phase extraction protocols allowed for efficient catalyst recovery and reuse.
ACS APPLIED POLYMER MATERIALS
(2022)
Review
Polymer Science
Marisa Dwi Ariani, Ade Zuhrotun, Panagiotis Manesiotis, Aliya Nur Hasanah
Summary: Molecular imprinting technology has the potential to effectively separate and purify target compounds. The use of dummy template in molecularly imprinted polymers provides a solution for the unavailability of target compounds and template leakage. This technique is especially useful for removing allergenic or toxic compounds from natural product samples.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
Article
Polymer Science
Sarah H. Megahed, Mohammad Abdel-Halim, Amr Hefnawy, Heba Handoussa, Boris Mizaikoff, Nesrine A. El Gohary
Summary: This study used molecularly imprinted polymers (MIPs) for selective extraction of quinic acid (QA) from coffee bean extract. Computational modeling and equilibrium rebinding studies were performed to optimize the preparation of MIP C, which showed better binding performance than other MIPs tested. The applied molecularly imprinted solid-phase extraction (MISPE) using MIP C was able to selectively extract QA from aqueous coffee extract, with reduced interference from other components.
Article
Chemistry, Analytical
Arash Mohammadinejad, Seyedeh Zohreh Kamrani Rad, Gholamreza Karimi, Vahideh Sadat Motamedshariaty, Seyed Ahmad Mohajeri
Summary: This study aimed to develop a selective solid phase extraction method using dummy molecularly imprinting approach for extraction and clean-up of hesperidin in lime juice, in order to check the quality of commercial lime juice products. The synthesized molecularly imprinted polymer showed high adsorption capacity for hesperidin and successfully removed interfering compounds for accurate analysis. The analysis of hesperidin in lime juice was done by high-performance liquid chromatography, with a detection limit of 0.05 µg/mL.
JOURNAL OF SEPARATION SCIENCE
(2021)
Article
Engineering, Environmental
Li-Hong Su, Hai -Long Qian, Cheng Yang, Chuanxi Wang, Zhenyu Wang, Xiu- Ping Yan
Summary: This study presents a facile surface imprinting approach using dopamine to generate imprinted cavities on the surface of irreversible COF for efficient extraction of fluoroquinolones (FQs) in food samples. The resulting MI-COF exhibited exceptional adsorption capacity, with a 2.2-fold enhancement compared to nonimprinted COF. Furthermore, MI-COF was successfully employed as an adsorbent coupled with HPLC for the simultaneous determination of enrofloxacin, norfloxacin, and ciprofloxacin, showing low limits of detection, high precision, and satisfactory recoveries in food samples.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Analytical
Zhuang-Fei Jiang, Qin Li, Qing-Yao Li, Hui-Xian Xu, Jia-Yuan He, Chong-Zhi Wang, Lian-Di Zhou, Qi-Hui Zhang, Ling Luo, Chun-Su Yuan
Summary: A new adsorbent was synthesized using dummy-template molecular imprinting technology, magnetic separation technology, and pH-responsive technology. This adsorbent can quickly enrich anthocyanins in fruit and detect them using electrochemical methods. The results showed that the dummy-template magnetic and pH-responsive molecularly imprinted polymers had shorter equilibrium time, higher selectivity, and better adsorption capacity compared to structural analogues.
MICROCHEMICAL JOURNAL
(2022)
Article
Biochemical Research Methods
Xiaoya Fu, Xia Wang, Zhining Xia, Yike Huang
Summary: In this study, a sample pretreatment method for genotoxic impurities (GTIs) with very trace content in medicine was established using dummy template molecular imprinting technology (DMIT) and solid phase extraction. The optimal adsorption conditions were obtained through conditional optimization, and the quality control of GTIs in pharmaceuticals was achieved.
JOURNAL OF CHROMATOGRAPHY A
(2022)
Article
Chemistry, Analytical
Weiliang Xue, Na Li, Zhuomin Zhang, Gongke Li
Summary: This study successfully utilized molecularly imprinted solid-phase microextraction technology to detect trace 2,6-DCBQ in drinking water with good selectivity and sensitivity. By coupling with HPLC-UV detection, a sensitive analytical method was established for the detection of trace 2,6-DCBQ in water samples, improving the practicality of DBPs monitoring and detection methodology.
Article
Engineering, Environmental
Marine Boudias, Sofiane Korchi, Alkiviadis Gourgiotis, Audrey Combes, Charlotte Cazala, Valerie Pichon, Nathalie Delaunay
Summary: In this study, a selective and specific sorbent for radium extraction was developed using ion-imprinted polymer technology. The researchers identified the best synthesis conditions by testing various parameters and comparing the properties of different polymers. The resulting ion-imprinted polymer showed both selectivity and specificity in retaining radium ions while minimizing interference from other ions.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Analytical
Amineh Sadat Tajani, Vahid Soheili, Fatemeh Moosavi, Razieh Ghodsi, Taher Alizadeh, Bibi Sedigheh Fazly Bazzaz
Summary: A highly selective molecular imprinting polymer was developed to attenuate biofilm formation of the multidrug-resistant pathogen Pseudomonas aeruginosa by disrupting the intermolecular signaling system. The results showed a significant difference in biofilm inhibition between the imprinted and non-imprinted polymer, indicating the potential of the molecular imprinting polymer in clinical and industrial applications.
ANALYTICA CHIMICA ACTA
(2022)