温度响应型分子印迹水凝胶的应用研究进展

分子印迹是人工制备对某一特定分子具有选择性识别能力的聚合物的技术。将分子印迹与具有温敏性质的水凝胶相复合得到的温敏印迹材料,可通过外界温度变化自发的调节对模板分子的吸附与分离。综述了近年来温敏印迹材料在生物蛋白分离、金属离子吸附、电化学传感器、光催化降解、药物释放等方面的应用,并对温敏印迹技术未来的发展进行了展望。     

分子印迹聚合物制备与应用

分子印迹作为制备对某一特定的分子 (印迹分子或模板分子 )具有特异性识别的聚合物的过程 ,在分离分析、仿生传感器和模拟酶催化等方面具有重要的应用前景。介绍了分子印迹技术的基本原理、分子印迹聚合物的制备和特性、分子印迹技术的应用场合及发展趋势     

分子印迹技术制备与应用进展

综述了分子印迹技术的制备方法及在色谱分离、固相萃取、膜分离、免疫分析、仿生传感、酶催化模拟等领域的应用。并指出对于分子印迹和识别的机理、在水相中实现分子印迹识别和大分子印迹聚合物的合成等方面需进一步研究。     

分子印迹膜的制备及应用进展

分子印迹膜是将分子印迹技术与膜分离技术相结合而制备的一种新型分离膜。因其具有高度的选择性和特异的分子识别能力,在手性物质分离、仿生传感及固相萃取等方面表现出良好的应用前景。介绍了分子印迹膜的发展、制备方法及应用等几个方面,并对其发展前景做出展望。     

分子印迹膜的制备及应用进展

分子印迹膜是将分子印迹技术与膜分离技术相结合而制备的一种新型分离膜。因其具有高度的选择性和特异的分子识别能力,在手性物质分离、仿生传感及固相萃取等方面表现出良好的应用前景。介绍了分子印迹膜的发展、制备方法及应用等几个方面,并对其发展前景做出展望。     

分子印迹聚合物在催化反应中的研究进展

分子印迹技术是将某一特定的目标分子作为模板,运用"锁钥"理论,制备出对该目标分子具有特异选择性聚合物的技术。分子印迹技术应用在诸多领域,如色谱分离、固相萃取、仿生传感等。近年来,分子印迹技术在催化领域的研究取得了重要的进展,本文重点介绍了印迹分子用作催化剂在有机反应中的应用,并对分子印迹聚合物在有机合成的发展方向上进行了展望。     

分子印迹技术及其在催化领域中的应用

分子印迹技术是制备具有分子识别功能聚合物的一种技术,广泛应用于分离分析和催化领域中,尤其是在模拟酶催化中表现出很高的催化活性和专一性.分子印迹聚合物有多种制备方法,如原位聚合法、悬浮聚合法、表面印迹法、电化学聚合法等.分子印迹催化剂主要以过渡态类似物、底物类似物、产物类似物为模板,以及利用辅酶因子来制备.主要应用在化学反应和生物酶的催化等方面.     

基于分子印迹的蛋白质识别研究进展

分子印迹技术是制备具有分子识别能力聚合物的技术,因具有构效预定性、特异识别性和广泛实用性三大特性,而在分离纯化、生物化学、生物药学以及医学等诸多领域具有广阔的应用前景.综述了蛋白质分子印迹技术的起源和发展、印迹聚合物的制备、印迹效果评价及在各个领域的应用,并对其应用前景进行了展望.     

分子印迹膜的制备研究进展

分子印迹膜是在分子印迹技术的基础上结合膜科学而形成的一种具有分子识别及记忆作用的分离膜,在固相萃取分离、色谱技术、手性拆分及仿生传感器方面具有很好的应用潜力。分子印迹膜的制备是其应用的关键前提。综述了分子印迹膜的制备技术,并对分子印迹膜未来的发展进行了展望。     

有机-无机分子印迹杂化材料的研究进展

分子印迹技术是制备选择性识别特定分子的聚合物的方法,因其制备简单、稳定性好且具有特异分子识别功能使其在色谱分离、固相萃取、化学传感和模拟酶催化等方面都有广泛的应用。有机-无机杂化分子印迹聚合物集有机和无机聚合物的优点,不仅机械强度高,而且耐溶剂性好,是分子印迹技术的一个崭新领域。在介绍有机-无机杂化分子印迹聚合物基本概况的基础上,综述了有机-无机杂化分子印迹聚合物制备的原理、方法和特点,并对未来的发展提出了展望。     

Molecularly imprinted polymers: present and future prospective

Molecular Imprinting Technology (MIT) is a technique to design artificial receptors with a predetermined selectivity and specificity for a given analyte, which can be used as ideal materials in various application fields. Molecularly Imprinted Polymers (MIPs), the polymeric matrices obtained using the imprinting technology, are robust molecular recognition elements able to mimic natural recognition entities, such as antibodies and biological receptors, useful to separate and analyze complicated samples such as biological fluids and environmental samples. The scope of this review is to provide a general overview on MIPs field discussing first general aspects in MIP preparation and then dealing with various application aspects. This review aims to outline the molecularly imprinted process and present a summary of principal application fields of molecularly imprinted polymers, focusing on chemical sensing, separation science, drug delivery and catalysis. Some significant aspects about preparation and application of the molecular imprinting polymers with examples taken from the recent literature will be discussed. Theoretical and experimental parameters for MIPs design in terms of the interaction between template and polymer functionalities will be considered and synthesis methods for the improvement of MIP recognition properties will also be presented.     

2,4-Dichlorophenol molecularly imprinted two-dimensional photonic crystal hydrogels

A novel molecularly imprinted two-dimensional (2-D) photonic crystal hydrogels (MIPH) for sensitive and label-free recognition of 2,4-dichlorophenol (2,4-DCP) was prepared. The 2-D photonic crystal template was fabricated by using air-water interface self-assembly method. And then the template was embedded with molecularly imprinted polymer, which was synthesized with 2,4-DCP as imprinted molecules, dimethyl sulfoxide as solvent, acrylic acid and acrylamide as functional monomers, N,N-methylene bis acrylamide as cross-linker, azobisisobutyronitrile as initiator. The imprinted molecules were removed by 0.01 M ammonia solution. The results indicated that the 2,4-DCP molecularly imprinted 2-D photonic crystal hydrogels has good response and recognition ability to 2,4-DCP. When the molar ratio of cross-linking density of MIPH is 2.3% and the molar ratio of imprinting molecule is 5.0%, the change of Debye ring diameter is the largest. The diameter of Debye ring increased by 7.1 mm when the concentration of 2,4-DCP changed from 0 to 1 × 10⁻⁶ M, and the particle spacing of MIPH reduced 38 nm. In addition, the diameter of the Debye ring hardly changed in the solution of analogues of 2,4-DCP such as, phenol, 2-chlorophenol, 2,4,6-trichlorophenol and so on, indicating that the MIPH has highly sensitivity and specificity.     

分子印迹技术在固相萃取中的应用

分子印迹技术是制备具有分子特异识别功能聚合物的一种技术。分子印迹固相萃取技术由于具有高通量和高特异性,在食品、环境、药物、生物样品中分析物的分离、净化、富集中具有广阔的应用前景。文章中综述了分子印迹固相萃取技术的应用、分子印迹技术的最新进展和在应用中存在的问题等。     

磁性分子印迹聚合物的制备与应用研究

磁性分子印迹聚合物是在磁性微粒表面利用分子印迹技术合成具有超顺磁性、高选择性、高吸附性和特异性识别的聚合物。能在外加磁场作用下实现快速分离和定向移动,是一种新型高分子材料。本文主要介绍了物理法、化学法和模板法3种磁性微粒的制备方法,以及利用分子印迹技术制备磁性分子印迹聚合物,并探讨了悬浮聚合、乳液聚合和沉淀聚合3种聚合方法的研究进展,总结了磁性分子印迹聚合物在农药残留、兽药残留、重金属残留和生物医学方面的应用。分析表明磁性分子印迹聚合物在生物医学领域,尤其是抗菌治疗方面有良好的发展前景。     

基于壳聚糖的分子印迹聚合物的制备和应用

壳聚糖具有良好的生物相容性和独特的分子结构,基于其制备的分子印迹聚合物因亲和性和选择性高、应用范围广等特点引起了广泛的关注。本文首先总结了壳聚糖和改性壳聚糖在分子印迹聚合物制备中的作用,然后介绍了壳聚糖分子印迹聚合物在环境污染治理、医药、蛋白质分离与识别、手性物质分离以及吸附功能成分等方面的应用,分析了壳聚糖分子印迹聚合物在各个应用领域的优缺点及发展方向。最后,从发展绿色分子印迹技术以及分子印迹技术与电化学传感器结合等层面对壳聚糖分子印迹聚合物的应用前景进行了展望。     

表面分子印迹材料制备研究进展

表面分子印迹技术是通过把分子识别位点建立在印迹材料的表面,来提高识别位点与印迹分子的结合速度,进一步加强印迹材料吸附分离效率。从无机硅胶材料和聚合物材料两方面综述了表面分子印迹材料制备技术发展现状,着重评述了表面分子印迹聚合物微球的制备方法及相应产品的性能,并指出表面分子印迹技术存在的不足。     

分子印迹聚合物的制备与应用研究进展

分子印迹技术也称之为分子膜技术,在分子识别和痕量分析中得到广泛的应用。利用分子印迹技术合成了分子印迹聚合物。近几十年来,该化合物受到了普遍的关注。分子印迹聚合物具有新型官能团,对某些分子具有空间识别性能。介绍了分子印迹聚合物的合成方法及机理,并论述了其在一些领域的应用进展。由于具有对某些分子的空间识别性能,在传感器中得到了应用;由于具有抵抗恶劣环境的能力,使其在酶催化方面得到应用;同样由于能够与具有类似结构的分子印迹聚合物相连接的能力,使其在膜分离及固相萃取中得到应用,在化学催化方面同样得到了应用。     

Size matters: Challenges in imprinting macromolecules

A large number of molecularly imprinted polymers (MIPs) have been investigated and reported over the last decade. Various templates have been successfully exploited and used, leading to significant advances in separation, adsorption, catalysis, sensing, and drug delivery. Among all the templates, small molecules have dominated in the synthesis of MIPs. In contrast, progress made in imprinting macromolecules has been slow, mainly due to the challenges presented by the size, structure and conformational fragility of biological macromolecules. In this review, we focus on discussing some key issues involved in the imprinting of macromolecules from recent publications. The similarity and difference between imprinting small molecules and macromolecules are highlighted. Other aspects relating to polymer design and function are also discussed.     

Electrochemical sensor prepared from molecularly imprinted polymer for recognition of TNT

We report herein an effective strategy for recognizing of 2,4,6‐trinitrotoluene (TNT) molecules at the surface of graphene polyaniline (PANI) nanocomposites. The imprinted template was synthesized using picric acid as a template analogue for the explosive. The recognition sites were generated by the extraction of the imprinting template from GN‐PANI‐molecularly imprinted polymer film. The morphology of preparing films was investigated using scanning electronic microscopy images. The differential pulse voltammograms and cyclic voltammograms were used for TNT detection. The results reported here could form the basis of a new strategy for preparing various polymer‐coating layers on PANI supports and the molecular imprinting techniques discussed could also find applications in the fields of separation and environmental monitoring. POLYM. COMPOS., 36:1280–1285, 2015. © 2014 Society of Plastics Engineers