期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 13, 期 21, 页码 9929-9941出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0cp02967j
关键词
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资金
- National Institute of Biomedical Imaging and Bioengineering (NIBIB)
- NIH
- National Science Foundation of China (NSFC) [81028009]
- NATIONAL INSTITUTE OF BIOMEDICAL IMAGING AND BIOENGINEERING [ZIAEB000073] Funding Source: NIH RePORTER
Fluorescence-based assays and detection techniques are among the most highly sensitive and popular biological tests for researchers. To match the needs of research and the clinic, detection limits and specificities need to improve, however. One mechanism is to decrease non-specific background signals, which is most efficiently done by increasing fluorescence quenching abilities. Reports in the literature of theoretical and experimental work have shown that metallic gold surfaces and nanoparticles are ultra-efficient fluorescence quenchers. Based on these findings, subsequent reports have described gold nanoparticle fluorescence-based activatable probes that were designed to increase fluorescence intensity based on a range of stimuli. In this way, these probes can detect and signify assorted biomarkers and changes in environmental conditions. In this review, we explore the various factors and theoretical models that affect gold nanoparticle fluorescence quenching, explore current uses of activatable probes, and propose an engineering approach for future development of fluorescence based gold nanoparticle activatable probes.
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