Review
Biochemistry & Molecular Biology
Zhigang Wang, Zhuangzhuang Dong, Xiantao Shen, Bin Wu
Summary: Molecularly imprinted polymers (MIPs) have attracted significant attention due to their low cost, mild operating conditions, and excellent selectivity. Yeast, as a biological material, shows great potential as a supporting substrate in the molecular imprinting process. This article focuses on the preparation of different types of MIPs involving yeast, elaborates on its specific roles in each case, discusses the advantages and limitations of yeast in MIPs synthesis, and addresses the challenges and future development trends of yeast in molecular imprinting research.
Article
Environmental Sciences
Weiyingxue Yang, Chuixiu Huang, Xiantao Shen
Summary: In this study, water-compatible Janus MIP particles (J-MIPs) were synthesized to remove trace pharmaceutical pollutants from hospital effluents. J-MIP3, among the series of J-MIPs, showed fast binding kinetics and the dominant recognition mechanism was analyzed. Selectivity and stability tests demonstrated the promising practical application of the synthetic method. Moreover, the feasibility of J-MIP3 fixed-bed column in rapid removal of pharmaceuticals from wastewater was successfully demonstrated, showing at least 7-fold enhancement in treatment efficiency compared to activated carbon fixed-bed column. Overall, this study opens up new avenues for the development of multi-functional molecularly imprinted polymers and Janus materials in environmental science.
Review
Chemistry, Multidisciplinary
Cansu Aydogan, Gorkem Yilmaz, Ataulla Shegiwal, David M. Haddleton, Yusuf Yagci
Summary: The application of photochemistry in polymer synthesis offers unique advantages compared to thermochemistry, allowing for precise control over macromolecular structure and chain length while also being environmentally friendly. Recent research has focused on utilizing photocontrolled living radical and cationic polymerizations for polymer synthesis.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Polymer Science
Joseph W. Lowdon, Hanne Dilien, Bart van Grinsven, Kasper Eersels, Thomas J. Cleij
Summary: The research focuses on developing a dye displacement assay based on MIP for colorimetric detection of the antibiotic amoxicillin in aqueous medium. The study includes developing an MIP through monolithic bulk polymerization and utilizing emulsion polymerization for more homogenous particle synthesis. The assay demonstrates high specificity and selectivity towards amoxicillin, offering a rapid semi-quantitative detection method.
Review
Chemistry, Multidisciplinary
Irvin Veloz Martinez, Jackeline Iturbe Ek, Ethan C. Ahn, Alan O. Sustaita
Summary: Molecularly imprinted polymers (MIP) have demonstrated their potential as artificial and selective receptors for environmental monitoring. By tailoring these materials through specific binding mechanisms, MIP can mimic the recognition capacity of biological receptors while offering superior stability and versatility in sensing platforms. Controlled/living radical polymerization (CRP) techniques, such as RAFT, have been used to overcome the limitations of traditional polymerization methods, resulting in MIP with enhanced selectivity, sensitivity, and sorption capacity when incorporated as transducing elements in sensors. This study focuses on the design and synthesis strategies of RAFT-MIP to improve binding affinities and their application in environmental contaminant sensing.
Review
Biochemical Research Methods
Anna Herrera-Chacon, Xavier Ceto, Manel del Valle
Summary: Molecularly imprinted polymers (MIPs) are artificial materials that mimic the molecular recognition process of biological macromolecules, and when combined with electrochemical techniques, can significantly improve sensor performance. However, MIPs may still show cross-responses to other compounds. The combination of MIPs with chemometric methods can lead to the development of new electronic tongue sensor array systems.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Polymer Science
Chenfeng Ku, Youhong Zhang, Guohong Zhou, Kean Wang
Summary: Molecularly imprinted polymers (MIPs) were synthesized via precipitation polymerization for selective adsorption of morphine. The MIP with optimal performance was obtained by adjusting synthesis conditions. It showed high adsorption capacity, reusability, and stability in acetonitrile solution.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Alessandra Maria Bossi, Alessio Bucciarelli, Devid Maniglio
Summary: Nanosized biomimetics prepared by molecular imprinting are showing potential as plastic antibodies in medicine for cell imaging and targeted therapies. Utilizing natural polymer silk fibroin to synthesize biocompatible MIP SF-NPs demonstrates high affinity recognition sites and biocompatibility.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Multidisciplinary Sciences
Lei Wang, Yupo Xu, Quan Zuo, Haojie Dai, Lei Huang, Meng Zhang, Yongli Zheng, Chunyang Yu, Shaodong Zhang, Yongfeng Zhou
Summary: The authors have developed a novel decolorable, metal-free and visible light-controlled living cationic polymerization system. This system exhibits predictable molar mass, low dispersity and sequential polymerization capability, and shows the longest off period of 36 hours. Furthermore, the residual photocatalyst can be easily deactivated and decolored.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Kazuki Takahata, Naoki Aizawa, Masashi Nagao, Satoshi Uchida, Raita Goseki, Takashi Ishizone
Summary: The study established a 1:1 addition reaction to regulate the sequence of vinyl compounds by enhancing the electrophilicity of DPE derivatives. By sequentially reacting two or three DPE derivatives in increasing order of their electrophilicity, well-defined sequence-controlled polystyrenes were successfully synthesized in a single reaction.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Elisabetta Mazzotta, Tiziano Di Giulio, Stefano Mariani, Martina Corsi, Cosimino Malitesta, Giuseppe Barillaro
Summary: Molecularly imprinted polymers (MIPs) have been synthesized in liquid phase, but their application in nanostructured materials is challenging due to limited diffusion of monomers. This study reports the vapor-phase synthesis of MIPs in nanostructures, utilizing a higher diffusion coefficient in vapor phase to overcome the diffusion limitations. As proof-of-concept, a vapor-phase deposited MIP-based optical sensor in nanostructured porous silicon oxide (PSiO2) is successfully demonstrated for label-free detection of human hemoglobin (HHb). The proposed vapor-phase synthesis of MIPs can be easily applied to other nanomaterials, proteins, and transducers.
Article
Chemistry, Multidisciplinary
Kosuke Ito, Tsuyoshi Taniguchi, Tatsuya Nishimura, Katsuhiro Maeda
Summary: A substantially improved method for living polymerization of N-propargylamides and their derivatives has been developed using rhodium(I) complexes as initiators. The method enables the synthesis of cis-stereoregular polymers with a narrow molecular weight distribution and allows functionalization of polymer chain ends and synthesis of block copolymers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Environmental Sciences
Sushma Pardeshi, Rita Dhodapkar
Summary: Growing concerns about water contamination and pollution have led to increased interest in trace level sensing of contaminants. Molecularly imprinted polymers (MIPs) have shown potential for selective recognition of various toxicants and are widely used in electrochemical sensors (ECS). In recent years, the combination of nanomaterials modifiers with MIPs has significantly improved the sensing performance of MIP-ECS. This review summarizes the advances of MIP-ECS electrochemical sensors in the past six years and discusses the challenges and future prospects in this research area.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Analytical
Haiping Wang, Hongwei Wang, Qingyan Bai, Yunjia Xu, Chunmiao Bo, Bolin Gong
Summary: In this study, molecularly imprinted polymers with specific recognition of bisphenol A were synthesized using a surface-initiated atom transfer radical polymerization method. The adsorption capacity of bisphenol A was investigated, and the kinetic analysis showed a adsorption equilibrium time of 25 min, consistent with the pseudo-second-order kinetic model. The results of the static adsorption experiments exhibited consistency with the Langmuir adsorption model, demonstrating a maximum adsorption capacity of 387.2 μmol/g. High-performance liquid chromatography analysis of the enriched samples showed excellent selectivity for bisphenol A, with a linear range of 93.4%-99.7% recovery and 1.1%-6.4% relative standard deviation, indicating its high potential for practical bisphenol A detection and enrichment applications.
JOURNAL OF SEPARATION SCIENCE
(2023)
Article
Chemistry, Applied
Mohamed Atef Abdel Fatah, Muhammad G. Abd El-Moghny, Mohamed S. El-Deab, Rasha Mohamed El Nashar
Summary: Metribuzin, an important herbicide widely used in fields, was detected using an electrochemical sensor with good selectivity and sensitivity. The sensor showed a linear response over a wide concentration range and achieved successful detection in commercial products and samples.
Article
Polymer Science
Yuanzhang Jiang, Xuyi Wang, Yanting Han, Dakai Gong, Yingchun Gu, Lin Tan
Summary: In this study, FeCl3 and poly(acrylic acid) (PAA) were doped into waterborne polyurethanes (WPUs) to create multifunctional materials with self-healing and antimicrobial properties. WPU/Fe/PAA-5.5, containing 5.5 wt % PAA, exhibited excellent mechanical properties, strong self-healing capabilities, and an impressive antimicrobial rate of over 90%. These supramolecular films were also highly recyclable through hot-pressing.
Article
Polymer Science
Longyu Tian, Min Wang, Guangming Liao, Baoliang Liu, Sujuan Zhang, Yucheng Sun, Zhen Meng, Jintao Zhang, Zaijun Lu
Summary: Two kinds of benzoxazine monomers were synthesized and used to prepare polybenzoxazine anion exchange membranes (AEMs) with quaternary ammonium functionalization. The LQPBZ AEM exhibited better ion conductivity and alkaline stability.
Article
Polymer Science
Claire A. Lemarchand
Summary: This study investigates the shock behavior of three different polymers through molecular dynamics simulations. The results reveal specificities in the shock behavior of polymers, including deviations from the linear relation between shock velocity and particle velocity, as well as differences in shear stress relaxation behind the shock front. It is found that the deviation of the Hugoniot locus is related to the change in the relative contribution of bonding and non-bonding potential energies, while polymers with higher glass transition temperatures exhibit slower shear stress relaxation.
Article
Polymer Science
Zengquan Liu, Xiaochun Yin, He Zhang, Shuo Gao, Qinglin Kuang, Yanhong Feng
Summary: A powder solid-state extension (PSSE) technology was proposed to address the high melt viscosity issue of UHMWPE. By uniaxial extension and sintering in the solid state, a highly self-reinforced material was prepared. X-ray diffraction and scattering techniques were used to study the structural evolution during the PSSE process, and a solid-phase induced transformation model was established.
Article
Polymer Science
Zhike Li, Anyu Luo, Rui Zhou, Xin Li, Haiyan Li
Summary: A novel high temperature resistance IL@SiO2 nanocapsules were successfully prepared and their friction and wear properties in PA6 composites were studied. The addition of IL@SiO2 nanocapsules reduced the friction coefficient and wear rate without affecting the mechanical properties of PA6. The synergy between the IL core and SiO2 wall in the nanocapsules improved the self-lubricating performance of the PA6 composites.
Article
Polymer Science
Xin Liu, Xuhong Guo, Qi Liao
Summary: In this study, an algorithm for accurately estimating viscosity is developed using molecular dynamics simulations and the Green-Kubo formula. This algorithm can be applied to complex systems with long correlations, such as macromolecular and biological simulation systems.
Article
Polymer Science
Hao Pu, Yun-Lei Hou, Jing -Zhou Chen, Dong -Lin Zhao
Summary: The use of modified graphene improves the interfacial adherence of carbon fibers to epoxy resin, resulting in enhanced interfacial and bending properties of CF and matrix in CF/EP composites, as well as increased interlaminar shear strength and flexural strength.
Article
Polymer Science
Wei-Chung Ke, Jin-Wei Lin, Manohar Reddy Busireddy, Yueh-Hsing Lee, Jiun-Tai Chen, Chain-Shu Hsu
Summary: This study introduces a crosslinkable monomer, TAIC, to synthesize three crosslinked polyimide films, which exhibit improved thermal, mechanical, and dielectric properties. The introduction of TAIC enhances the tensile strength, reduces the dielectric constant and dielectric loss, and decreases the coefficient of thermal expansion of the polyimide films.
Article
Polymer Science
Alex Kwasi Kumi, Ruiling Fan, Ye Chen, Yumei Zhang
Summary: The difference in leaching of amylopectin from cellulose/amylopectin/1-butyl-3-methylimidazolium chloride ([Bmim][Cl]) blends during regeneration in water and aqueous ethanol has been studied. Molecular dynamics simulations showed that the dissolution and regeneration mechanisms of amylopectin in [Bmim][Cl] are similar to cellulose in ionic liquids. Water regeneration leads to weak electrostatic interactions, resulting in high leaching of amylopectin. In contrast, ethanol-water interactions enhance electrostatic interactions among amylopectin chains, limiting amylopectin leaching in aqueous ethanol.
Article
Polymer Science
Xi Zeng, Junwei Zhou, Junbiao Peng, Chunsheng Zhang, Danling Wang, Yihu Song, Qiang Zheng
Summary: This study utilizes an oligomer deep eutectic solvent (DES) based on polyethylene glycol to regulate the vulcanization kinetics of rubber. The results show that the DES can accelerate vulcanization at low temperatures without affecting the crosslinking density and Mullins effect.
Article
Polymer Science
Qianqian Yue, Yongfei Peng, Xingjian Liu, Aihua He, Huarong Nie
Summary: The addition of metal deactivators can effectively suppress the aging of TBIR, prolong its lifespan, and have no negative effects on its physical and processing properties. These research findings are of great importance for improving the stability and aging resistance of polymers.
Article
Polymer Science
J. Gomez-Caturla, J. Ivorra-Martinez, R. Tejada-Oliveros, V Moreno, D. Garcia-Garcia, R. Balart
Summary: This work focuses on the development of environmentally friendly PLA formulations by using different esters derived from geraniol as plasticizers. The results show that these esters have good compatibility with PLA, and they can effectively enhance the elongation and plasticity of PLA, reduce its glass transition temperature, and slightly improve its water absorption capabilities.
Article
Polymer Science
Dandan Li, Zhaohui Lu, Zhao Ke, Ke Xu, Fengna Dai, Youhai Yu, Guangtao Qian, Chunhai Chen
Summary: In this study, cross-linked PI aerogel membranes with low dielectric constant and high moisture resistance were prepared by co-polymerization and scraping coating technology. The incorporation of fluorinated blocks and benzimidazole ring structures resulted in novel PI aerogel membranes with fascinating dielectric properties and outstanding moisture resistance.
Article
Polymer Science
Zhaoyang Chu, Qing Zhang, Haihua Luo, Han Zhou, Fapei Zhang, Wei Chen, Wenhua Zhang
Summary: Multi-physical fields solution processing strategy is a universal and facile method for preparing various conjugated polymer films and high-performance devices. In this study, we employed a combined microfluidic flow and ultrasonication strategy (FU) for processing CP solutions, and found a pronounced synergetic effect in promoting the pre-ordering of chains in solution. The conformation order and anisotropy of the solution were revealed through various characterizations. A non-classical nucleation model for polymer crystallization in non-equilibrium solution processing was confirmed. The roles of microfluidic flow and ultrasonication in chain aggregation and crystallization were addressed through multi-physical simulations. Compared to pristine solutions, the FU strategy showed improved solution anisotropy and crystallization kinetics, resulting in higher crystallinity in films and increased mobilities in OFET devices. The FU processing strategy provides a universal approach for regulating chain conformation and aggregation in conjugated polymer solutions.