Imperial College London

Professor Dan Elson

Faculty of MedicineDepartment of Surgery & Cancer

Professor of Surgical Imaging



+44 (0)20 7594 1700daniel.elson Website




415 Bessemer BuildingBessemer BuildingSouth Kensington Campus






BibTex format

author = {Gallina, ME and Zhou, Y and Johnson, CJ and Harris-Birtill, D and Singh, M and Zhao, H and Ma, D and Cass, T and Elson, DS},
doi = {10.1016/j.msec.2015.09.101},
journal = {Materials Science & Engineering C - Biomimetic and Supramolecular Systems},
pages = {324--332},
title = {Aptamer-conjugated, fluorescent gold nanorods as potential cancer theradiagnostic agents},
url = {},
volume = {59},
year = {2015}

RIS format (EndNote, RefMan)

AB - GNRs are emerging as a new class of probes for theradiagnostic applications thanks to their unique optical properties. However, the achievement of proper nanoconstructs requires the synthesis of highly pure GNRs with well-defined aspect ratio (AR), in addition to extensive surface chemistry modification to provide them with active targeting and, possibly, multifunctionality.In this work, we refined the method of the seed mediated growth and developed a robust procedure for the fabrication of GNRs with specific AR. We also revealed and characterized unexplored aging phenomena that follow the synthesis and consistently alter GNRs' final AR. Such advances appreciably improved the feasibility of GNRs fabrication and offered useful insights on the growth mechanism.We next produced fluorescent, biocompatible, aptamer-conjugated GNRs by performing ligand exchange followed by bioconjugation to anti-cancer oligonucleotide AS1411. In vitro studies showed that our nanoconstructs selectively target cancer cells while showing negligible cytotoxicity. As a result, our aptamer-conjugated GNRs constitute ideal cancer-selective multifunctional probes and promising candidates as photothermal therapy agents.
AU - Gallina,ME
AU - Zhou,Y
AU - Johnson,CJ
AU - Harris-Birtill,D
AU - Singh,M
AU - Zhao,H
AU - Ma,D
AU - Cass,T
AU - Elson,DS
DO - 10.1016/j.msec.2015.09.101
EP - 332
PY - 2015///
SN - 0928-4931
SP - 324
TI - Aptamer-conjugated, fluorescent gold nanorods as potential cancer theradiagnostic agents
T2 - Materials Science & Engineering C - Biomimetic and Supramolecular Systems
UR -
UR -
VL - 59
ER -