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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Shourian, M. Ghourchian, H. Boutorabi, M. |
| Description | Country affiliation: Iran Author Affiliation: Shourian M ( Laboratory of Microanalysis, Institute of Biochemistry and Biophysics, University of Tehran, P.O. Box 131451384, Tehran, Iran.); Ghourchian H ( Laboratory of Microanalysis, Institute of Biochemistry and Biophysics, University of Tehran, P.O. Box 131451384, Tehran, Iran); Boutorabi M ( Pishtaz Teb Zaman Co., Tehran, Iran.) |
| Abstract | The signal amplification for analytical purposes has considerable potential in detecting trace levels of analytes for clinical, security or environmental applications. In the present report a strategy based on a sandwich type immunoassay system was designed for the detection of hepatitis B surface antigen which exploits the specific affinity interaction between streptavidin and biotin recognition systems. The method involves the specific coupling of multi-functionalized gold nanoparticles (bearing biotin and luminol molecules) to the streptavidin modified by secondary antibody. The chemiluminescent signal is produced by the gold nanoparticles in the presence of HAuCl4 as catalyst and hydrogen peroxide as oxidant. The immunosensor was able to detect hepatitis B surface antigen in the linear concentration range from 1.7 to 1920 pg mL(-1) and the detection limit of 0.358 pg mL(-1), at signal/noise = 3. |
| File Format | HTM / HTML |
| ISSN | 00032670 |
| Volume Number | 895 |
| e-ISSN | 18734324 |
| Journal | Analytica Chimica Acta |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-10-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Analytical Discipline Chemistry Gold Chemistry Hepatitis B Surface Antigens Analysis Immunoassay Metal Nanoparticles Catalysis Chlorides Gold Compounds Hydrogen Peroxide Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Spectroscopy Environmental Chemistry Analytical Chemistry Biochemistry |
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