M13 Phage-Functionalized Single-Walled Carbon Nanotubes As Nanoprobes for Second Near-Infrared Window Fluorescence Imaging of Targeted Tumors
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Author(s)
Yi, Hyunjung
Ghosh, Debadyuti
Ham, Moon-Ho
Qi, Jifa
Strano, Michael S.
Barone, Paul
Belcher, Angela M
Date Issued
January 2012
Journal
Nano Letters
Publisher
American Chemical Society (ACS)
Citation
Yi, Hyunjung, Debadyuti Ghosh, Moon-Ho Ham, Jifa Qi, Paul W. Barone, Michael S. Strano, and Angela M. Belcher. “M13 Phage-Functionalized Single-Walled Carbon Nanotubes As Nanoprobes for Second Near-Infrared Window Fluorescence Imaging of Targeted Tumors.” Nano Lett. 12, no. 3 (March 14, 2012): 1176–1183.
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Author's final manuscript
Abstract
Second near-infrared (NIR) window light (950–1400 nm) is attractive for in vivo fluorescence imaging due to its deep penetration depth in tissues and low tissue autofluorescence. Here we show genetically engineered multifunctional M13 phage can assemble fluorescent single-walled carbon nanotubes (SWNTs) and ligands for targeted fluorescence imaging of tumors. M13-SWNT probe is detectable in deep tissues even at a low dosage of 2 μg/mL and up to 2.5 cm in tissue-like phantoms. Moreover, targeted probes show specific and up to 4-fold improved uptake in prostate specific membrane antigen positive prostate tumors compared to control nontargeted probes. This M13 phage-based second NIR window fluorescence imaging probe has great potential for specific detection and therapy monitoring of hard-to-detect areas.
MIT Department
Massachusetts Institute of Technology. Center for Biomedical Innovation
Massachusetts Institute of Technology. Department of Biological Engineering
Massachusetts Institute of Technology. Department of Chemical Engineering
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Koch Institute for Integrative Cancer Research at MIT
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DOI of Published Version
https://doi.org/10.1021/nl2031663
