The coupling rates are 8～10 and 17～21 respectively,both determined by the improved BCA method.

It was investigated the relationship between the coupling rate and the capacity of condensing DNA,the relationship between the coupling rate and the transfection efficiency of copolymer in vitro Method:The structure and the coupling rate of copolymer were measured by 1H-NMR.

The coupling ratio was 39∶1 and 24∶1 respectively with UV-UIS spectrophotometer.

The relationships between initiator and coupling agent,and relative molecular mass and coupling efficiency in test run of low cis-1,4-polybutadiene rubber were analyzed.

Preparation of 2,2′-dihydroxy-1,1′-binaphthyl by the oxidative coupling of 2-naphthol in the presence of FeCl_3/Al_2O_3 catalyst;

Preparation of coupling cationic colouring stabilizer and its application in the ink-jet printing paper;

Synthesis of biphenyl liquid crystal compound by coupling;

After activated by coupling reagents such as DCC, EDCI, CDI and EEDQ in short time, Boc-Arg(Tos)-OH was coupled with TsOH·Gly-OBzl to produce N-terminal dipeptide Boc-Arg(Tos)-Gly-OBzl (1) in suitable reactive condition in 43%～97% yield.

Different chrysin derivatives were successfully coupled to NO donors and we hope this kind of compounds could act asα-Glucosidase Inhibition reagents and promotion angiogenesis reagents as well as anti-diabetes and anti-diabetic vascular complications.

Synthesis and Characterization of Functional Polyester-co-poly (amino acid) Copolymers for Drug Molecules Conjugation

In this review the conjugation mode of metal complex with an oligodeoxyribonucleotide and the interaction mechanism of the artificial enzymes with the targets are described, and the research direction in future is pointed out.

To overcome the toxicity effect on direct use of purified native hemoglobin, various modification technologies have been developed, including diaspirin cross-linking, glutaraldehyde polymerization, O-raffinose polymerization, polyethylene glycol conjugation, liposome encapsulat.