Formation of Oligonucleotide-Gated Silica Shell-Coated Fe3O4-Au Core–Shell Nanotrisoctahedra for Magnetically Targeted and Near-Infrared Light-Responsive Theranostic Platform

Constructing near-infrared-light-mediated core-shell nanostructures incorporating upconversion nanoparticles (UCNPs) and semiconductors is of great importance for potential applications in photocatalysis, nano-biomedical engineering, solar cell, etc. In this work, we have demonstrated a two-step solution process to synthesize [email protected] core-shell nanoparticles (CSN). Firstly, a layer of AA-Zn(Cd)[OH]4− composites was coated on UCNPs to form UCNPs@AA-Zn(Cd)[OH]4− composites, which has been converted to [email protected] CSN via sulfidation reaction process using thioacetamide (TAA) as the sulfur source. Moreover, the [email protected] yolk-shell nanoparticles (YSN) have been obtained from the [email protected] CSN after calcination at 400°C, which show significantly photocatalytic activity for reduction of Cr(VI) under near-infrared light. All these can be attributed to the enhanced crystallization degree, resulting in enhanced energy transfer efficiency and separation efficiency of the photogenerated electrons and holes. An alternative strategy is provided in this study for fabrication of UCNP/semiconductor composites for various applications.

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Aptamer-conjugated magnetic Fe3O4@Au core-shell multifunctional nanoprobe: a three-in-one aptasensor for selective capture, sensitive SERS detection and efficient near-infrared light triggered photothermal therapy of Staphylococcus aureus

Sensors and Actuators B Chemical ◽

10.1016/j.snb.2021.130879 ◽

2021 ◽

pp. 130879

Author(s):

Wenshi Zhao ◽

Daxin Zhang ◽

Tianxiang Zhou ◽

Jie Huang ◽

Yushan Wang ◽

...

Keyword(s):

Staphylococcus Aureus ◽

Photothermal Therapy ◽

Near Infrared ◽

Infrared Light ◽

Core Shell ◽

Near Infrared Light ◽

Sers Detection ◽

Multifunctional Nanoprobe ◽

Magnetic Fe3o4

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Core–Shell–Shell Multifunctional Nanoplatform for Intracellular Tumor-Related mRNAs Imaging and Near-Infrared Light Triggered Photodynamic–Photothermal Synergistic Therapy

Analytical Chemistry ◽

10.1021/acs.analchem.7b02081 ◽

2017 ◽

Vol 89 (19) ◽

pp. 10321-10328 ◽

Cited By ~ 30

Author(s):

Yao Cen ◽

Wen-Jing Deng ◽

Yuan Yang ◽

Ru-Qin Yu ◽

Xia Chu

Keyword(s):

Near Infrared ◽

Infrared Light ◽

Core Shell ◽

Near Infrared Light

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Constructing two-dimensional CuFeSe2@Au heterostructured nanosheets with an amorphous core and a crystalline shell for enhanced near-infrared light water oxidation

Nanoscale ◽

10.1039/c7nr07632k ◽

2018 ◽

Vol 10 (5) ◽

pp. 2380-2387 ◽

Cited By ~ 9

Author(s):

Huang Wen ◽

Hua Li ◽

Suisui He ◽

Fengjuan Chen ◽

Erli Ding ◽

...

Keyword(s):

Photocatalytic Activity ◽

Water Oxidation ◽

Near Infrared ◽

Light Irradiation ◽

Infrared Light ◽

Core Shell ◽

Two Dimensional ◽

Near Infrared Light ◽

Light Water ◽

Nir Light

The reversed growth of 2D core–shell CuFeSe2@Au heterostructured nanosheets with a crystalline shell and an amorphous core were first prepared and show enhanced photocatalytic activity for water oxidation under NIR light irradiation.

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