ChemInform Abstract: Using Low-Energy Near Infrared Light and Upconverting Nanoparticles to Trigger Photoreactions within Supramolecular Assemblies

ChemInform ◽  
2016 ◽  
Vol 47 (34) ◽  
Author(s):  
Tuoqi Wu ◽  
Neil R. Branda
Keyword(s):  
Near Infrared ◽  
Supramolecular Assemblies ◽  
Low Energy ◽  
Infrared Light ◽  
Near Infrared Light

Using low-energy near infrared light and upconverting nanoparticles to trigger photoreactions within supramolecular assemblies

2016 ◽  
Vol 52 (56) ◽  
pp. 8636-8644 ◽  
Author(s):  
Tuoqi Wu ◽  
Neil R. Branda
Keyword(s):  
Visible Light ◽  
Near Infrared ◽  
High Energy ◽  
Photochemical Reactions ◽  
Supramolecular Assemblies ◽  
Supramolecular Structures ◽  
Low Energy ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Trivalent Lanthanide

This overview highlights how the high-energy ultraviolet or visible light required to drive photochemical reactions can be overcome by integrating the chromophores into supramolecular structures containing upconverting nanoparticles with trivalent lanthanide dopants (such as Tm3+ and Er3+).

The Value of Photo Biological Regulation Based on Nano Semiconductor Laser Technology in the Treatment of Hypertension Fundus Disease

2021 ◽  
Vol 21 (2) ◽  
pp. 1323-1330
Author(s):  
Xingui Hu ◽  
Linan Zhou ◽  
Huifeng Wang ◽  
Yuanpeng Gao ◽  
Yan Gao
Keyword(s):  
Semiconductor Laser ◽  
Near Infrared ◽  
Theoretical Data ◽  
Low Energy ◽  
Infrared Light ◽  
Tissue Blood Flow ◽  
Near Infrared Light ◽  
Biological Regulation ◽  
Laser Technology ◽  
Wide Range

With the development of nanometer semiconductor laser technology, due to the wide range of photobiological regulation and non-invasive advantages, it is widely used in clinical research, including reducing pain, accelerating wound healing, nerve injury repair and regeneration. Increase tissue blood flow, improve anxiety and depression, and treat Parkinson’s and retinal diseases. However, in many studies, the role of photobiological regulation is still controversial. There are two main problems, one is that the mechanism of photo biological regulation is not fully understood, and the other is that the specific parameters are not uniform in different treatments, such as wavelength density, power density, pulse, treatment timing, and number of treatments. In this paper, through the second question, the parameters of low-energy near-infrared light (810 nm semiconductor laser) in the treatment of fundus diseases are the main research objects. Based on understanding the parameters of low-energy lasers, cyan blue is irradiated with different energy near-infrared light. Data analysis of the actual energy obtained after the retina of the rabbit and observation and research on the cell morphology of each layer of the retina, to obtain relatively safe treatment parameters for the retina, provide theoretical data for near-infrared light in the treatment of clinical fundus disease, and make it safer to use in clinical treatment.

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.

π-Conjugated Copolymers Composed of Boron Formazanate and Their Application for a Wavelength Converter to Near-Infrared Light

2021 ◽  
Vol 54 (4) ◽  
pp. 1934-1942
Author(s):  
Yuki Kawano ◽  
Yoshinori Ito ◽  
Shunichiro Ito ◽  
Kazuo Tanaka ◽  
Yoshiki Chujo
Keyword(s):  
Near Infrared ◽  
Infrared Light ◽  
Wavelength Converter ◽  
Near Infrared Light ◽  
Conjugated Copolymers
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