A review is presented on the methods of preparation of single-chain particles, including atomizer spraying, surface film spreading, freeze-drying of very dilute solutions and microemulsion polymerization. The properties of single-chain and pauci-chain polystyrene microspheres and recent results on the electron microscopy and selected area electron diffraction of single-chain monocrystals of polyethylene oxide, isotactic polystyrene, cis-1, 4-polybutadiene and guttapercha are presented and discussed.

The goal of molecular recognition studiesis to understand how two molecules interactin a specific manner. It plays important roles in chemical and life processes. The molecular recognition mechanisms and their applications in chemistry, life sciences,materials science and information science have been reviewed.

This review describes the methods for the detection of anti-HIV an tibody which have an evolution for nearly two decades. The advantages and attractive features of some methods are discussed and the draw backs of some methods are pointed out as well.125 references are given.

The latest progress in the application of EXAFS spectroscopy in bioinorganic chemistry is reviewed. The fundamental method and information in the analysis of the interaction between the metalions and biological molecules by EXAFS spectroscopy are discussed in detail. Authors also expect the prospect in China and aboard in this research field.

Organic and polymer thin film electroluminescent devices have become a new and fascinating area of research in recent years. The advantages of organic materials over inorganic materials are high fluorescence efficiency, wide selection of emission colors and the ease in fabrication of large size films. In this review , the device structure and its preparation, electroluminescent mechanism , the selection of active materials have been introduced. Close attention has also been paid to the new trends in this field, the problem of device stability as well as the potential applications of the organic and polymer thin film electoluminescent devices.

The latest developments in nanometer semiconductors, including their characteristics, preparative technology, characterization and applications, are introduced.

This paper systematically summarizes new developments of study and uses about porous carbon materials from various aspects, such as expansions of production materials, increases of shape features, control of nanometer distance, improvements of function character, test of fine structures and exploitation of new use channels.

In this paper, the carbonylation reaction and its characters were presented.It was designated that based on our country′s resource conditions, developing carbonylation technique, a key technique of modern coal chemical industry, will be of important practical and strategic significance. The advances of carbonylation technique in the world were discussed. Some proposals for carbonylation technique developmentin our country were suggested.