Journal
JOURNAL OF PHYSICAL CHEMISTRY B
Volume 111, Issue 25, Pages 6969-6972Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp070620n
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Funding
- NCI NIH HHS [CA104492, R01CA119397] Funding Source: Medline
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In this study, CdSe/CdS/ZnS quantum dots (QDs) were used as optical contrast agent for imaging pancreatic cancer cells in vitro using transferrin and anti-Claudin-4 as targeting ligands. CdSe/CdS/ZnS was chosen because the CdSe/CdS/ZnS QDs have better photoluminescence (PL) efficiency and stability than those of CdSe/ZnS. The transferrin-mediated targeting is demonstrated in both a cell-free coprecipitation assay as well as using in vitro confocal microscopy. Pancreatic cancer specific uptake is also demonstrated using the monoclonal antibody anti-Claudin-4. This targeted QD platform will be further modified for the purpose of developing as an early detection imaging tool for pancreatic cancer.
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