Abstract： We experimented the preparation of the novel gold nanoparticle probes that labeled with both antibodies and thiol-terminated oligonucleotides The morphology and spectroscic properties of these probes were evaluated by transmission electron microscopy (TEM) and UV-vis spectra analyses. The degrees of antibody coating and the coverage of the oligonucleotides were analyzed by dot-immunogold filtration assay, immunogold-silver staining, fluorospectrophotometry. The oligonucleotide conjugation to the surface of （10±3）nm sized gold nanoparticles was determine to be (92±20) oligonucleotides per nanoparticle by PCR-PAGE techniques. With the high stability and ease of preparation, our dual-labeled gold nanoparticle probes could be attractive to researchers as a versatile and ultrasensitive agent for the detection of certain proteins.
孔小丽,乔飞燕,齐晖，李富荣,周汉新. 抗体和寡核苷酸双标记纳米金生物探针的制备及性能分析[J]. 中国生物化学与分子生物学报, 2008, 24(05): 481-487.
KONGXiao-Li,QIAOFei-Yan,QIHui,LIFu-Rong,ZHOUHan-Xin. Preparation and Characterization of Dual-labeled Gold Nanoparticle Probes withOligonucleotides and Antibodies. Chinese Journal of Biochemistry and Molecular Biol, 2008, 24(05): 481-487.
