Live cell imaging using CdSe/CdS/ZnS quantum rods (QRs) as targeted optical probes is reported. The QRs, synthesized in organic media using a binary surfactant mixture, were dispersed in aqueous media using mercaptoundecanoic acid (MUA) and lysine. Transferrin (Tf) was linked to the QRs to produce QR-Tf bioconjugates that were used for targeted in vitro delivery to a human cancer cell line. Confocal and two-photon imaging were used to confirm receptor-mediated uptake of QR-Tf conjugates into the HeLa cells, which overexpress the transferrin receptor (TfR). Uptake was not observed with QRs that lacked Tf functionalization or with cells that were presaturated with free Tf and then treated with Tf-functionalized QRs.
Quantum rod bioconjugates as targeted probes for confocal and two-photon fluorescence imaging of cancer cells. Publishing Authors By Initials
Quantum rod bioconjugates as targeted probes for confocal and two-photon fluorescence imaging of cancer cells. Journal Published:
PUBLICATION TYPE: Research Support, U.S. Gov't,
Journal: Nano letters
VOLUME: 7
Page Numbers: 761-5
Journal Abbreviation: Nano Lett.
ISSN: 1530-6984
DAY: 9
MONTH: 02
YEAR: 2007
Quantum rod bioconjugates as targeted probes for confocal and two-photon fluorescence imaging of cancer cells. Information
Number of References:
LANGUAGE: eng
NlmUniqueID: 101088070
Quantum rod bioconjugates as targeted probes for confocal and two-photon fluorescence imaging of cancer cells. Keywords Mesh Terms:
KEYWORDS: Transferrin
MESH TERMS: pharmacokinetics
Chemical & Substance for Abstract: Quantum rod bioconjugates as targeted probes for confocal and two-photon fluorescence imaging of cancer cells. Information
Substance Name: Transferrin
Registry Number: 11096-37-0
Grant and Affiliation Information for Quantum rod bioconjugates as targeted probes for confocal and two-photon fluorescence imaging of cancer cells.
AFFILIATION: Institute for Lasers, Photonics and Biophotonics, University at Buffalo, The State University of New York, Buffalo, New York 14260-4200, USA.
Country: United States
AGENCY: United States NCI
GRANT: R01CA119397
ACRONYM: CA
MEDLINETA: Nano Lett
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