2D AuPd alloy nanosheets: one-step synthesis as imaging-guided photonic nano-antibiotics.
2D AuPd alloy nanosheets: one-step synthesis as imaging-guided photonic nano-antibiotics.
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二维 AuPd 合金纳米片:成像引导光子纳米抗生素的一步合成
DOI:
10.1039/d0na00342e
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发表时间:
2020-08-11
影响因子:
4.7
通讯作者:
中科院分区:
文献类型:
--
作者:
The complicated synthesis and undesirable biocompatibility of nanomaterials hinder the synergistic photothermal/photodynamic therapy for bacterial infections. Herein, we develop a one-step preparation method of 2D AuPd alloy nanosheets as imaging-guided photonic nano-antibiotics. 2D AuPd alloy nanosheets with an extremely small thickness (∼1.5 nm) exhibit prominent photothermal effects (η = 76.6%), excellent ROS generation, strong photoacoustic signals and desirable biocompatibility. AuPd nanosheets can eliminate 100% of representative Gram-positive (Staphylococcus aureus) and Gram-negative bacteria (Escherichia coli) when irradiated using an 808 nm laser at 1 W cm−2 for 5 minutes. After being modified with a bacterial targeting peptide, under the guidance of photoacoustic imaging, AuPd nanosheets achieve promising synergistic photothermal/photodynamic therapeutic efficacy in treating Staphylococcus aureus infected mice. This work expands the biomedical application of 2D noble metal nanomaterials to the field of photonic nano-antibiotics.
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影响因子:
17.1
作者:
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通讯作者:
Ge, Cuicui
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通讯作者:
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