树枝状大分子的自组装超薄膜

树枝状化合物因具有三维立体结构、均一的分布和多而密且可修饰性强的外官能团,使之作为结构单元进行自组装形成具有特色的超薄膜。Regen等利用整代聚酰胺－胺型（PAMAM）树状分子的胺端基,将其沉积到用Pt^2 离子活化的表面,重复这一过程即得到多层膜。Crook等首先报道了以共价键结合的树状分子膜,这种膜是将PAMAM树状分子的胺端基与巯基十一烷酸组成的单层膜作用生成酰胺键而形成的。Tsukruk等将表面分别带正负电荷的PAMAM树状分子在硅表面进行层状沉积形成超薄膜。研究显示,以树状分子为结构单元经自组装形成的膜具有潜在的用途前景,如作为化学探感器、多相催化剂、滤光片或光学器件基材等。     

自组装方法制备有序微孔薄膜

本文对近年来自组装方法制备有序微孔薄膜的研究进行了综述,总结了固体基板展开法制备有序微孔薄膜的形成机理,对成膜材料,成膜的影响因素和微孔阵列排列的形成条件等方面进行了详细的介绍和分析,并对自组装方法制备微孔薄膜的应用前景作了探讨。     

自组装超薄膜: 从纳米层状构筑到功能组装

总结了一种新型的超薄膜自组装技术－交替沉积组装技术的发展现状,着重对成膜推动力、生物分子的层状组装、无机／有机杂化结构、有机小分子化合物的层状组装、超薄膜化学修饰电极、层间化学反应及非平衡基底上的层状构筑等几个方面的问题进行了讨论。     

自组装超分子膜修饰电极的研制及分析应用

阐述了自组装超分子膜修饰电极的发展概况及超分子体系形成的理论基础，并对自组装超分子膜修饰电极的特点、电化学行为、功能膜的制备和表征方法以及它在电催化、生物传感器、离子选择性电极等方面的应用进行了综述。     

放射标记法研究壳聚糖与牛血清白蛋白的自组装超薄膜

基片在两种带有相反电荷的聚电解质溶液中交替吸附 ,其表面形成致密有序的超薄膜的自组装 (ＥＳＡ ｅｌｅｃｔｒｏｓｔａｔｉｃｓｅｌｆ ａｓｓｅｍｂｌｙ)技术是由Ｄｅｃｈｅｒ及其合作者在 1 991年提出[1] ,由于简单易行 ,从一出现就受到了广大研究者的极大兴趣[2～ 4 ] .对生物材料来说 ,这无疑是一项非常重要且方便的表面改性手段 .因为生物材料在生物体内种植时 ,是否会被机体视为异物 ,关键在于机体与材料表面的相互作用 ,而与材料的本体性质基本无关[5] .因此利用这种技术 ,可对生物材料 ,特别是对那些生物相容性不好的材料表面进行…     

一种含有偶氮磺酸基与吡啶基的高分子氢键自组装及自组装超薄膜

静电自组装是指将带相反电荷的聚电解质，于水溶液中交替沉积在片基上，制备多层超薄膜的技术．由于它在水溶液进行，技术简单，无需专用设备，再加上静电力比范德华力强，因此静电自组装膜比传统的LB(Langmuir—Blodget)膜稳定，在近年来得到很大发展．现在自组装成膜驱动力已从最初的静电力扩展到氢键、电荷转移相互作用、疏水相互作用等；用于组装的组分也从聚电解质扩展到多官能团小分子、胶体粒子、无机纳米     

SiO2 溶胶及其静电自组装薄膜的制备

Silica sols were prepared by hydrolysis of Si（OC2H5）4（TEOS）using HCl,NH3·H2O,HCl/NH3·H2O as catalyzers,and the different granularities of SiO2 sols which catalyzed by HCl first and then NH3·H2O have the same terminal pH value were prepared. The silica colloidal particles were investigated with Transmission Electron Microscope（TEM）. The results showed sol catalyzed by HCl possesses very little particle,catalyzed by NH3·H2O has particle configuration,catalyzed by HCl/NH3·H2O possesses consecutive configuration. Poly（diallyldimethylammonium chloride）（PDDA）and SiO2 nanoparticulate complex thin films were prepared by electrostatic self-assembly multiplayer（ESAM）method. After assembling films,thin films surface conformation was observed with Electron Microscope and their transmittance was tested with 721 Spectrophotometer. The results showed that the silica sol catalyzed with HCl is not good for the fabrication of ESAM films and the silica sol catalyzed with HCl first and then NH3·H2O or by NH3·H2O only are very suitable for ESAM film fabrication. TEM data indicate that the microstructure of PDDA/ SiO2 prepared from silica sol catalyzed with HCl first and then NH3·H2O is consecutive and that the microstructure of PDDA/ SiO2 prepared from silica sol catalyzed by NH3·H2O only is particulate-parking like. The dependence of the transmittance of assembled films on the bilayer number of the films and the anti-scratching properties of the films were investigated. The results show that PDDA/ SiO2 films prepared from silica sol catalyzed by NH3·H2O only possess higher transmittance but lower anti-scratching properties. The effect of granularity of sols on optical performances of the thin films was studied,results showed the less the granularity of sol,the better the optical performances. For the sake of improving the light transmittance of films,we can reduce the granularity of sol,but it may play down its mechanical damage resist intensity.     

金属卟啉配合物超分子自组装

介绍了金属卟啉配合物超分子自组装的基本方法和电子给-受体仿生超分子的研究；对金属卟啉配合物超分子自组装研究的发展方向进行了探讨。     

基于氢键的自组装超分子体系

氢键自组装超分子是超分子体系中相对较新颖和引人注意的领域,它在化学和生物体系中占据非常重要的位置。本文主要介绍目前文献报道的一系列由不同氢键缔合方式形成的自组装超分子。     

非共价键自组装有机功能材料

分子自组装对于某些化学反应过程、生物化学过程及生命活动的模拟等方面具有重要的意义。本文对非共价键组装方式自组装的有机功能材料的分类，结构、性质、自组装机理以及研究进展进行了综述。     

液晶自组装多层级结构及其应用

液晶的分层组装与刺激响应特性使其在先进功能材料的开发与应用领域具有独特的优势.通过特定的技术手段诱导其自组装行为,可带来新奇的光学、机械、电磁等性能,进而实现一系列全新的技术应用.本文主要针对近晶相、胆甾相、蓝相这三种特殊的液晶相态,系统介绍了多形态焦锥畴结构,分层油纹,螺旋结构,双螺旋扭曲柱立方晶格等多层级结构,重点论述了材料组分优化,几何结构限制以及外场激励等条件下液晶多层级结构的大面积精细操控,回顾了其在粒子操控、表面改性、光子技术等领域的相关技术应用,并总结展望了液晶组装技术与应用的发展前景.     

功能性CdSe纳米晶的合成及自组装膜光致发光

以巯基丙酸(RSH)为稳定剂,采用湿化学法合成了功能性CdSe纳米晶,用XRD、TEM表征其粒度和形貌,用UV-Vis监测成核及成膜过程。结果表明：制得的CdSe近似呈球形,平均粒径为48 nm。利用静电自组装法层层组装成CdSe-PDDA复合膜,荧光测试表明：所得CdSe纳米晶自组装复合膜(CdSe-PDDA)的荧光强度随着组装层数的增加而呈线性增强,该复合膜在582 nm附近有黄绿色荧光发射。     

Inorganic Thin Films Prepared from Soluble Powders and Their Applications

Sol-gel processing has proved to be a useful method for the preparation of a wide range of inorganic thin films. However, gelation or precipitation of coating solutions and thus limited shelf-life have been drawbacks for the industrial application of this technology.Soluble powders of various compositions can be prepared from modified metal alkoxides commonly employed in sol-gel processing. Even though these powders contain a considerable amount of organic moieties they can be stored indefinitely under ambient conditions, thus diminishing shelf life problems. Redissolution in polar organic solvents, solvent mixtures or even water yields ready-to-use coating solutions. Coating solutions for the preparation of titania (TiO₂), zirconia (ZrO₂) and lead zirconate titanate (PbTi _x Zr_1–x O₃, PZT) films have been synthesized by this method. Thickness, microstructure and properties of the resulting films can be varied by modification of the solvent, the coating procedure and thermal treatment. Inorganic thin films for various applications have been prepared.     

MXenes Thin Films: From Fabrication to Their Applications

Two-dimensional MXenes possessed exceptional physiochemical properties such as high electrical conductivity (20,000 Scm⁻¹), flexibility, mechanical strength (570 MPa), and hydrophilic surface functionalities that have been widely explored for energy storage, sensing, and catalysis applications. Recently, the fabrication of MXenes thin films has attracted significant attention toward electronic devices and sensor applications. This review summarizes the exciting features of MXene thin film fabrication methods such as vacuum-assisted filtration (VAF), electrodeposition techniques, spin coating, spray coating, dip-coating methods, and other physical/chemical vapor deposition methods. Furthermore, a comparison between different methods available for synthesizing a variety of MXenes films was discussed in detail. This review further summarizes fundamental aspects and advances of MXenes thin films in solar cells, batteries, electromagnetic interference shielding, sensing, etc., to date. Finally, the challenges and opportunities in terms of future research, development, and applications of MXenes-based films are discussed. A comprehensive understanding of these competitive features and challenges shall provide guidelines and inspiration for further growth in MXenes-based functional thin films and contribute to the advances in MXenes technology.     

Electrocatalytic Organic-Inorganic Hybrid Films and Their Applications in Chemical Sensors and Biosensors

In this report, we will present the organic-inorganic hybrid molecular films prepared in our group and their applications in chemical sensors and biosensors.Many types of multi-layered films have been prepared in an alternatively assembled organic-inorganic and layer-by-layer manner. We will focus on the alternatively organized organic surfactant and metal-complex films and their conversion into electrocatalytically active films. Especially, we will demonstrate the preparation of bifunctional films for the detection of two different but correlated species, such as nitric oxide and oxygen, in biomedia.     

生物大分子自组装膜及其应用研究进展

本文主要介绍了酶，蛋白质、DNA等生物大分子自组装膜的研究进展，并对生物大分子膜在生物传感器，分子器件，高效催化材料，医用生物材料等方面的应用前景进行了展望。     

用紫外光谱和X射线光电子能谱研究金属卟啉自组装膜

金属卟啉化合物由于具有丰富的电子结构和特殊的物理化学性质,因而在光电材料、分子器件和非线性光学等领域具有广阔的应用前景．有机硅可用于提高高分子化合物在氧化物基底表面的附着力;在气相和液相色谱中可作为固定相;在生物传感器中可用于蛋白质的固定．     

壳聚糖氧化自组装膜的制备及其性能

由高碘酸钠和壳聚糖溶液反应,成功制备出壳聚糖氧化自组装膜。采用傅立叶变换红外光谱(FTIR)和X射线衍射法对氧化自组装膜进行了结构表征,并对膜的吸水率及其力学性能进行了测试。当壳聚糖为3 g,而高碘酸钠加入量等于0.010 g时,得到壳聚糖氧化自组装膜的最佳的抗张强度,干膜为54.32 MPa,湿膜为29.11 MPa,相对壳聚糖膜分别提高了17.52%和26.78%;并且得到了最佳的阻水性,其吸水率为78.51%,相对于壳聚糖膜降低了6.88%。     

Self-assembled Films of Poly(4-diazosulfonate Styrene-co-4-vinylpyridine) with Polyaniline and Their Photoelectric Conversion Properties

Poly(4-diazosulfonate styrene-co-4-vinylpyridine) (P(DSS-co-VP)) can self-assemble (SA) with polyaniline via H-bond interaction. The SA film was then photo-crosslinked under UV irradiation to form a covalent crosslinking structure. The photocurrent of the crosslinked SA films was determined directly in aqueous salt solution. The results showed that the polyaniline SA films were materials with good photoelectron conversion properties.     

Novel Roles of Metal Ions in Layered Self-assembled Films of Polynuclear Complexes on Their Photoinduced Electron Transfer Properties

Three metal ion bridged self-assembled(SA)films of cis-di(thiocyanato)-bis(2,2'-bipyridyl-4,4'-dicarboxylate)ruthenium were fabricated and characterized by contact angle,UV spectra,cyclic voltammetry and XPS.Theirphotoinduced electron transfer properties(PETP)were examined.Among the titled systems,the highest steady an-odic photocurrent of 1773—1843 nA/cm~1 and the highest quantum yield of 3.2% were achieved.The effects of in-cident light intensity,bias voltage,and electron donor were also studied.The possible mechanism of electron trans-fer was proposed.The results reveal that different metal ion in SA films could affect significantly the photoinducedelectron transfer property.Our experimental results clearly show that bridging metal ions can play both functionaland structural roles in these self-assembled systems.This method of forming functional films can provide a new ap-proach to regulate the property of similar systems.