Prinzen L, Miserus RJJHM, Dirksen A, Hackeng TM, Deckers N, Bitsch NJ, Megens RTA, Douma K, Heemskerk JW, Kooi ME, Frederik PM, Slaaf DW, van Zandvoort MAMJ, Reutelingsperger CPM. Optical and magnetic resonance imaging of cell death and platelet activation using annexin a5-functionalized quantum dots.
Nano Lett 2007;
7:93-100. [PMID:
17212446 DOI:
10.1021/nl062226r]
[Citation(s) in RCA: 71] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
A quantum-dot-based nanoparticle is presented, allowing visualization of cell death and activated platelets with fluorescence imaging and MRI. The particle exhibits intense fluorescence and a large MR relaxivity (r1) of 3000-4500 mM-1 s-1 per nanoparticle due to a newly designed construct increasing the gadolinium-DTPA load. The nanoparticle is suitable for both anatomic and subcellular imaging of structures in the vessel wall and is a promising bimodal contrast agent for future in vivo imaging studies.
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