Decoration of upconversion nanoparticles@mSiO2 core–shell nanostructures with CdS nanocrystals for excellent infrared light triggered photocatalysis

RSC Advances ◽  
2016 ◽  
Vol 6 (59) ◽  
pp. 54241-54248 ◽  
Author(s):  
Yao-Wu Li ◽  
Liang Dong ◽  
Chen-Xi Huang ◽  
Yan-Chuan Guo ◽  
Xian-Zhu Yang ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Photocatalytic Degradation ◽  
Infrared Light ◽  
Upconversion Nanoparticles ◽  
Core Shell ◽  
Cds Nanocrystals ◽  
Shell Nanostructures ◽  
Cds Nanostructures

Upconversion nanoparticles@mesoporous silica (mSiO2)/CdS nanostructures have been designed and fabricated for infrared light triggered photocatalytic degradation towards RhB dye.

Multimodal imaging and photothermal therapy were simultaneously achieved in the core–shell UCNR structure by using single near-infrared light

2017 ◽  
Vol 46 (36) ◽  
pp. 12147-12157 ◽  
Author(s):  
Chen Wang ◽  
Liangge Xu ◽  
Jiating Xu ◽  
Dan Yang ◽  
Bin Liu ◽  
...  
Keyword(s):  
Photothermal Therapy ◽  
Multimodal Imaging ◽  
Near Infrared ◽  
Infrared Light ◽  
Upconversion Nanoparticles ◽  
Core Shell ◽  
Imaging Diagnosis ◽  
The Core ◽  
Shell Nanostructures ◽  
Bio Imaging

Core–shell nanostructures consisting of plasmonic materials and lanthanide-doped upconversion nanoparticles (UCNPs) show promising applications in theranostics including bio-imaging, diagnosis and therapy.

scholarly journals Corroboration and efficacy of Magneto-Fluorescent (NiZnFe/CdS) Nanostructures Prepared using Differently Processed Core

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Dipti Rawat ◽  
P. B. Barman ◽  
Ragini Raj Singh
Keyword(s):  
Exchange Bias ◽  
Core Shell ◽  
Ferrite Core ◽  
The Core ◽  
Shell Nanostructures ◽  
Zn Ferrite ◽  
Different Temperatures ◽  
Cds Nanostructures ◽  
Multifunctional Nanostructures ◽  
The Comparative Study

Abstract The selected and controlled preparation of core@shell nanostructures, which unite the multiple functions of ferromagnetic Ni-Zn ferrite core and CdS shell in a single material with tuneable fluorescence and magnetic properties, have been proposed by the seed mediated aqueous growth process. The shell particle thickness and core of nanostructures were precisely tuned. Current work exhibits the comparative study of core@shell multifunctional nanostructures where core being annealed at two different temperatures. The core@shell nanostructure formation was confirmed by complementary structural, elemental, optical, magnetic and IR measurements. Optical and magnetic characterizations were performed to study elaborative effects of different structural combinations of core@shell nanostructures to achieve best configuration with high-luminescence and magnetic outcomes. The interface of magnetic/nonmagnetic NiZnFe2O4/CdS nanostructures was inspected. Unexpectedly, in some of the core@shell nanostructures presence of substantial exchange-bias was observed in spite of the non-magnetic nature of CdS QDs which is clearly an “optically-active” and “magnetically-inactive” material. Presence of “exchange-bias” was confirmed by the change in “magnetic-anisotropy” as well as shift in susceptibility derivative. Finally, successful formulation of stable and efficient core@shell nanostructures achieved, which shows no exchange-bias and shift. Current findings suggest that these magneto-fluorescent nanostructures can be used in spintronics; and drug delivery-diagnosis-imaging applications in nanomedicine field.

Multifunctional core–shell upconversion nanoparticles for targeted tumor cells induced by near-infrared light

2013 ◽  
Vol 1 (21) ◽  
pp. 2757 ◽  
Author(s):  
Xiaojun Yang ◽  
Qianqian Xiao ◽  
Caixia Niu ◽  
Nan Jin ◽  
Jin Ouyang ◽  
...  
Keyword(s):  
Tumor Cells ◽  
Near Infrared ◽  
Infrared Light ◽  
Upconversion Nanoparticles ◽  
Core Shell ◽  
Near Infrared Light

scholarly journals [email protected] Core-Shell and Yolk-Shell Nanostructures: Selective Synthesis, Characterization, and Near-Infrared-Mediated Photocatalytic Reduction of Cr(VI)

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Wan-Ni Wang ◽  
Wang Dong ◽  
Chen-Xi Huang ◽  
Bo Liu ◽  
Sheng Cheng ◽  
...  
Keyword(s):  
Near Infrared ◽  
Separation Efficiency ◽  
Solution Process ◽  
Infrared Light ◽  
Core Shell ◽  
Sulfur Source ◽  
Shell Nanoparticles ◽  
Near Infrared Light ◽  
Shell Nanostructures ◽  
Photogenerated Electrons

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.

Designed Fabrication of Unique Eccentric Mesoporous Silica Nanocluster-Based Core–Shell Nanostructures for pH-Responsive Drug Delivery

2013 ◽  
Vol 5 (15) ◽  
pp. 7282-7290 ◽  
Author(s):  
Lulu Chen ◽  
Lu Li ◽  
Lingyu Zhang ◽  
Shuangxi Xing ◽  
Tingting Wang ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Mesoporous Silica ◽  
Core Shell ◽  
Ph Responsive ◽  
Shell Nanostructures

Tuning epitaxial growth on NaYbF4 upconversion nanoparticles by strain management

Nanoscale ◽  
2020 ◽  
Vol 12 (26) ◽  
pp. 13973-13979 ◽  
Author(s):  
Jianxiong Zhao ◽  
Bing Chen ◽  
Xian Chen ◽  
Xin Zhang ◽  
Tianying Sun ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Surface Coverage ◽  
Strain Relaxation ◽  
Upconversion Luminescence ◽  
Shell Growth ◽  
High Surface ◽  
Upconversion Nanoparticles ◽  
Core Shell ◽  
Shell Nanostructures ◽  
Core Nanoparticles

The Strain relaxation of rod-like core nanoparticles promotes shell growth with high surface coverage. The resulting core–shell nanostructures show strong multiphoton upconversion luminescence and superior magnetic resonance T1 ionic relaxivity.

MnFe2O4-decorated large-pore mesoporous silica-coated upconversion nanoparticles for near-infrared light-induced and O2 self-sufficient photodynamic therapy

Nanoscale ◽  
2019 ◽  
Vol 11 (31) ◽  
pp. 14654-14667 ◽  
Author(s):  
Binbin Ding ◽  
Shuai Shao ◽  
Haihua Xiao ◽  
Chunqiang Sun ◽  
Xuechao Cai ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Mesoporous Silica ◽  
Near Infrared ◽  
Infrared Light ◽  
Upconversion Nanoparticles ◽  
Near Infrared Light ◽  
Large Pore

Upconversion hybrid theranostic nanoplatform for near-infrared light-induced and O2 self-sufficient photodynamic therapy.

Controlled Fabrication of Iron Oxide/Mesoporous Silica Core–Shell Nanostructures

2013 ◽  
Vol 117 (41) ◽  
pp. 21529-21538 ◽  
Author(s):  
Mingwei Zhang ◽  
Kegong Fang ◽  
Minggui Lin ◽  
Bo Hou ◽  
Liangshu Zhong ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Mesoporous Silica ◽  
Core Shell ◽  
Shell Nanostructures ◽  
Silica Core
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