Do infrared light-emitting diodes have a stimulatory effect on wound healing? From an in-vitro trial to patient treatment

2002 ◽  
Author(s):  
Elke Vinck ◽  
B. Cagnie ◽  
D. Cambier ◽  
M. Cornelissen
2013 ◽  
Vol 39 (3pt1) ◽  
pp. 422-425 ◽  
Author(s):  
Hadar Lev-Tov ◽  
Neil Brody ◽  
Daniel Siegel ◽  
Jared Jagdeo

2012 ◽  
Vol 20 (2) ◽  
pp. 226-235 ◽  
Author(s):  
Tomohiro Fushimi ◽  
Shigeki Inui ◽  
Takeshi Nakajima ◽  
Masahiro Ogasawara ◽  
Ko Hosokawa ◽  
...  

1986 ◽  
Vol 6 (3) ◽  
pp. 179-182 ◽  
Author(s):  
Norihiko Mikoshiba ◽  
Shun-ichi Sato ◽  
Shinro Mashiko ◽  
Humio Inaba ◽  
Yoshio Taguchi ◽  
...  

1984 ◽  
Vol 4 (1) ◽  
pp. 187-188 ◽  
Author(s):  
Shinro MASHIKO ◽  
Masayoshi SHIMAMOTO ◽  
Humio INABA ◽  
Yoshio TAGUCHI ◽  
Itaru OHARA ◽  
...  

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1477
Author(s):  
Woo-Suk Jung ◽  
Ill-Min Chung ◽  
Myeong Ha Hwang ◽  
Seung-Hyun Kim ◽  
Chang Yeon Yu ◽  
...  

Light is a key factor that affects phytochemical synthesis and accumulation in plants. Due to limitations of the environment or cultivated land, there is an urgent need to develop indoor cultivation systems to obtain higher yields with increased phytochemical concentrations using convenient light sources. Light-emitting diodes (LEDs) have several advantages, including consumption of lesser power, longer half-life, higher efficacy, and wider variation in the spectral wavelength than traditional light sources; therefore, these devices are preferred for in vitro culture and indoor plant growth. Moreover, LED irradiation of seedlings enhances plant biomass, nutrient and secondary metabolite levels, and antioxidant properties. Specifically, red and blue LED irradiation exerts strong effects on photosynthesis, stomatal functioning, phototropism, photomorphogenesis, and photosynthetic pigment levels. Additionally, ex vitro plantlet development and acclimatization can be enhanced by regulating the spectral properties of LEDs. Applying an appropriate LED spectral wavelength significantly increases antioxidant enzyme activity in plants, thereby enhancing the cell defense system and providing protection from oxidative damage. Since different plant species respond differently to lighting in the cultivation environment, it is necessary to evaluate specific wavebands before large-scale LED application for controlled in vitro plant growth. This review focuses on the most recent advances and applications of LEDs for in vitro culture organogenesis. The mechanisms underlying the production of different phytochemicals, including phenolics, flavonoids, carotenoids, anthocyanins, and antioxidant enzymes, have also been discussed.


Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Yiyue Zhang ◽  
Masoumeh Keshavarz ◽  
Elke Debroye ◽  
Eduard Fron ◽  
Miriam Candelaria Rodríguez González ◽  
...  

Abstract Lead halide perovskites have attracted tremendous attention in photovoltaics due to their impressive optoelectronic properties. However, the poor stability of perovskite-based devices remains a bottleneck for further commercial development. Two-dimensional perovskites have great potential in optoelectronic devices, as they are much more stable than their three-dimensional counterparts and rapidly catching up in performance. Herein, we demonstrate high-quality two-dimensional novel perovskite thin films with alternating cations in the interlayer space. This innovative perovskite provides highly stable semiconductor thin films for efficient near-infrared light-emitting diodes (LEDs). Highly efficient LEDs with tunable emission wavelengths from 680 to 770 nm along with excellent operational stability are demonstrated by varying the thickness of the interlayer spacer cation. Furthermore, the best-performing device exhibits an external quantum efficiency of 3.4% at a high current density (J) of 249 mA/cm2 and remains above 2.5% for a J up to 720 mA cm−2, leading to a high radiance of 77.5 W/Sr m2 when driven at 6 V. The same device also shows impressive operational stability, retaining almost 80% of its initial performance after operating at 20 mA/cm2 for 350 min. This work provides fundamental evidence that this novel alternating interlayer cation 2D perovskite can be a promising and stable photonic emitter.


2011 ◽  
Vol 20 (7) ◽  
pp. 1405-1415 ◽  
Author(s):  
Brian D. Hodgson ◽  
David M. Margolis ◽  
Donna E. Salzman ◽  
Dan Eastwood ◽  
Sergey Tarima ◽  
...  

Author(s):  
Marcela Leticia Leal Gonçalves ◽  
Elaine Marcílio Santos ◽  
Ana Cláudia Muniz Renno ◽  
Anna Carolina Ratto Tempestini Horliana ◽  
Matheus de Almeida Cruz ◽  
...  

2013 ◽  
Vol 103 (18) ◽  
pp. 183513 ◽  
Author(s):  
Parthiban Santhanam ◽  
Duanni Huang ◽  
Rajeev J. Ram ◽  
Maxim A. Remennyi ◽  
Boris A. Matveev

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