Core–Shell
Gold Nanorod@Layered Double Hydroxide Nanomaterial with Highly Efficient
Photothermal Conversion and Its Application in Antibacterial and Tumor
Therapy
Posted on 2019-08-06 - 17:03
Photothermal
conversion efficiency (η) of gold nanorods (GNRs) can be tuned
by enlarging the aspect ratio and forming the core–shell structure.
Herein, an easy synthesis method is developed to construct the core–shell
GNR@LDH nanostructure with GNRs and layered double hydroxides (LDHs).
The interaction between Au and LDHs results some electron deficiency
on the surface of Au and the more electrons induce more thermal energy
conversion. The η value of GNR@LDH can reach up to 60% under
the 808 nm laser irradiation, which is a significant enhanced conversion
efficiency compared with the reported GNR-based photothermal therapy
materials. CTAB (cetyltrimethyl ammonium bromide) can be replaced
totally during the synthesis process, and GNRs maintain a good dispersion
in LDHs. This core–shell composite GNR@LDH can be applied in
photothermal, antibacterial, tumor therapy and biological imaging
with low dosage and nontoxicity.
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Ma, Kun; Li, Yawen; Wang, Zhenguo; Chen, Yuzhi; Zhang, Xin; Chen, Chunyuan; et al. (2019). Core–Shell
Gold Nanorod@Layered Double Hydroxide Nanomaterial with Highly Efficient
Photothermal Conversion and Its Application in Antibacterial and Tumor
Therapy. ACS Publications. Collection. https://doi.org/10.1021/acsami.9b10373