Nd2O3/Au nanocomposites: upconversion broadband emission and enhancement under near-infrared light excitation

2014 ◽  
Vol 2 (29) ◽  
pp. 5857-5863 ◽  
Author(s):  
Xu Chen ◽  
Wen Xu ◽  
Yongsheng Zhu ◽  
Pingwei Zhou ◽  
Shaobo Cui ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Light ◽  
Precipitation Process ◽  
The Novel ◽  
Near Infrared Light ◽  
Broadband Emission ◽  
Light Excitation ◽  
Co Precipitation

In the present work, the novel Nd2O3/Au nanocomposites were successfully prepared by a co-precipitation process, which realized the upconversion broadband emission and enhancement under near infrared light excitation.

Cutaneous melanin exhibiting fluorescence emission under near-infrared light excitation

2006 ◽  
Vol 11 (3) ◽  
pp. 034010 ◽  
Author(s):  
Zhiwei Huang ◽  
Haishan Zeng ◽  
Iltefat Hamzavi ◽  
Abdulmajeed Alajlan ◽  
Eileen Tan ◽  
...  
Keyword(s):  
Near Infrared ◽  
Fluorescence Emission ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Light Excitation

Near-infrared light induced cationic polymerization based on upconversion and ferrocenium photochemistry

2019 ◽  
Vol 10 (41) ◽  
pp. 5574-5577 ◽  
Author(s):  
Xiaoyan Meng ◽  
Huaqiao Lu ◽  
Zhiquan Li ◽  
Chen Wang ◽  
Ren Liu ◽  
...  
Keyword(s):  
Cationic Polymerization ◽  
Near Infrared ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Cationic Photopolymerization ◽  
Light Excitation

Ferrocenium salts as unimolecular photoinitiators can efficiently initiate upconversion nanoparticle-assisted cationic photopolymerization under near-infrared light excitation.

An ordered copper nanowell-array film with near-perfect broadband absorption from ultraviolet to near-infrared light

2020 ◽  
Vol 59 (11) ◽  
pp. 110906
Author(s):  
Juan Shen ◽  
Yong Ren ◽  
Xinxin Zhu ◽  
Min Mao ◽  
Quan Zhou ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Broadband Absorption

scholarly journals Recent Near-Infrared Light-Activated Nanomedicine toward Precision Cancer Therapy

2021 ◽  
Author(s):  
Xiaowei Luan ◽  
Yongchun Pan ◽  
Yanfeng Gao ◽  
Yujun Song
Keyword(s):  
Cancer Therapy ◽  
Near Infrared ◽  
Infrared Light ◽  
Human Society ◽  
Near Infrared Light ◽  
History Of ◽  
The Universe

Light has witnessed the history of mankind and even the universe. It is of great significances to the life of human society, contributing to energy, agriculture, communication, and much more....

scholarly journals Au–ZnO Conjugated Black Phosphorus as a Near-Infrared Light-Triggering and Recurrence-Suppressing Nanoantibiotic Platform against Staphylococcus aureus

Pharmaceutics ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 52
Author(s):  
Atanu Naskar ◽  
Sohee Lee ◽  
Kwang-sun Kim
Keyword(s):  
Staphylococcus Aureus ◽  
Bacterial Infections ◽  
Near Infrared ◽  
Au Nanoparticles ◽  
Synthesis Method ◽  
Antibacterial Properties ◽  
Black Phosphorus ◽  
Infrared Light ◽  
Resistant Bacteria ◽  
Near Infrared Light

Antibiotic therapy is the gold standard for bacterial infections treatment. However, the rapid increase in multidrug-resistant (MDR) bacterial infections and its recent use for secondary bacterial infections in many COVID-19 patients has considerably weakened its treatment efficacy. These shortcomings motivated researchers to develop new antibacterial materials, such as nanoparticle-based antibacterial platform with the ability to increase the chances of killing MDR strains and prevent their drug resistance. Herein, we report a new black phosphorus (BP)-based non-damaging near-infrared light-responsive platform conjugated with ZnO and Au nanoparticles as a synergistic antibacterial agent against Staphylococcus aureus species. First, BP nanosheets containing Au nanoparticles were assembled in situ with the ZnO nanoparticles prepared by a low-temperature solution synthesis method. Subsequently, the antibacterial activities of the resulting Au–ZnO–BP nanocomposite against the non-resistant, methicillin-resistant, and erythromycin-resistant S. aureus species were determined, after its photothermal efficacy was assessed. The synthesized nanocomposite exhibited excellent anti-S. aureus activity and good photothermal characteristics. The non-resistant S. aureus species did not produce drug-resistant bacteria after the treatment of multiple consecutive passages under the pressure of the proposed nanoantibiotic, but rapidly developed resistance to erythromycin. This work clearly demonstrates the excellent photothermal antibacterial properties of Au–ZnO–BP nanocomposite against the MDR S. aureus species.

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