期刊
EXPERT OPINION ON DRUG DELIVERY
卷 6, 期 11, 页码 1175-1194出版社
TAYLOR & FRANCIS LTD
DOI: 10.1517/17425240903229031
关键词
biomedical imaging; molecular imaging; nanoparticle synthesis; surface modification; targeting
资金
- Pacific Northwest National Laboratory for Laboratory Directed Research and Development Fund [DE-AC05-76RL01830]
- American Heart Association
- NIH [R03 AR054035, P20 RR016443, R21 CA132033, P20 RR015563]
- NSF [CHE0719464]
- American Cancer Society [RSG-08-133-01-CDD]
Background: Synthetic nanoparticles are emerging as versatile tools in biomedical applications, particularly in the area of biomedical imaging. Nanoparticles 1 - 100 nm in diameter have dimensions comparable to biological functional units. Diverse surface chemistries, unique magnetic properties, tunable absorption and emission properties, and recent advances in the synthesis and engineering of various nanoparticles suggest their potential as probes for early detection of diseases such as cancer. Surface functionalization has expanded further the potential of nanoparticles as probes for molecular imaging. Objective: To summarize emerging research of nanoparticles for biomedical imaging with increased selectivity and reduced nonspecific uptake with increased spatial resolution containing stabilizers conjugated with targeting ligands. Methods: This review summarizes recent technological advances in the synthesis of various nanoparticle probes, and surveys methods to improve the targeting of nanoparticles for their application in biomedical imaging. Conclusion: Structural design of nanomaterials for biomedical imaging continues to expand and diversify. Synthetic methods have aimed to control the size and surface characteristics of nanoparticles to control distribution, half-life and elimination. Although molecular imaging applications using nanoparticles are advancing into clinical applications, challenges such as storage stability and long-term toxicology should continue to be addressed.
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