Development of micropropagation system of Zingiber officinale var. rubrum Theilade using different spectrum light-emitting diode (LED) irradiation

2021 ◽  
Vol 170 ◽  
pp. 113748
Author(s):  
Pavallekoodi Gnasekaran ◽  
Zuraida Abdul Rahman ◽  
Bee Lynn Chew ◽  
Suganthi Appalasamy ◽  
Vanitha Mariappan ◽  
...  
Keyword(s):  
Light Emitting Diode ◽  
Zingiber Officinale ◽  
Light Emitting ◽  
Led Irradiation

scholarly journals Photobiomodulation for Cobalt Chloride-Induced Hypoxic Damage of RF/6A Cells by 670 nm Light-Emitting Diode Irradiation

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Shuang Li ◽  
Qiang-Li Wang ◽  
Xin Chen ◽  
Xian-qiang Mi
Keyword(s):  
Diabetic Retinopathy ◽  
Cytochrome C ◽  
Cell Viability ◽  
Cytochrome C Oxidase ◽  
Oxidase Activity ◽  
Cobalt Chloride ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Atp Concentration ◽  
Led Irradiation

Objective. The goal of this study was to investigate the therapeutic efficacy of 670 nm light-emitting diode (LED) irradiation on the diabetic retinopathy (DR) using hypoxic rhesus monkey choroid-retinal (RF/6A) cells as the model system.Background Data. Treatment with light in the spectrum from red to near-infrared region has beneficial effect on tissue injury and 670 nm LED is currently under clinical investigation for retinoprotective therapy.Methods. Studies were conducted in the cultured cells under hypoxia treated by cobalt chloride (CoCl2). After irradiation by 670 nm LED with different power densities, cell viability, cytochrome C oxidase activity, and ATP concentration were measured.Results. The irradiation of 670 nm LED significantly improved cell viability, cytochrome C oxidase activity, and ATP concentration in the hypoxia RF/6A cells.Conclusion. 670 nm LED irradiation could recover the hypoxia damage caused by CoCl2. Photobiomodulation of 670 nm LED plays a potential role for the treatment of diabetic retinopathy.

Growth of Tsuru-rindo (Tripterospermum japonicum) culturedin vitro under various sources of light-emitting diode (LED) irradiation

2006 ◽  
Vol 49 (2) ◽  
pp. 174-179 ◽  
Author(s):  
Heutig Kyu Moon ◽  
So-Young Park ◽  
Yong Wook Kim ◽  
Chan Su Kim
Keyword(s):  
Light Emitting Diode ◽  
Light Emitting ◽  
Led Irradiation

scholarly journals Bromination of hydrocarbons with CBr4, initiated by light-emitting diode irradiation

2013 ◽  
Vol 9 ◽  
pp. 1663-1667 ◽  
Author(s):  
Yuta Nishina ◽  
Bunsho Ohtani ◽  
Kotaro Kikushima
Keyword(s):  
Nmr Spectroscopy ◽  
Hydrogen Atom ◽  
Absorption Spectra ◽  
High Efficiency ◽  
Light Emitting Diode ◽  
Active Species ◽  
Homolytic Cleavage ◽  
Light Emitting ◽  
Spectrometry Analysis ◽  
Led Irradiation

The bromination of hydrocarbons with CBr4 as a bromine source, induced by light-emitting diode (LED) irradiation, has been developed. Monobromides were synthesized with high efficiency without the need for any additives, catalysts, heating, or inert conditions. Action and absorption spectra suggest that CBr4 absorbs light to give active species for the bromination. The generation of CHBr3 was confirmed by NMR spectroscopy and GC–MS spectrometry analysis, indicating that the present bromination involves the homolytic cleavage of a C–Br bond in CBr4 followed by radical abstraction of a hydrogen atom from a hydrocarbon.

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