scholarly journals In Vitro Bactericidal Effects of 625, 525, and 425 nm Wavelength (Red, Green, and Blue) Light-Emitting Diode Irradiation

2013 ◽  
Vol 31 (11) ◽  
pp. 554-562 ◽  
Author(s):  
SangWoo Kim ◽  
JiSun Kim ◽  
WonBong Lim ◽  
SangMi Jeon ◽  
OkSu Kim ◽  
...  
Keyword(s):  
Blue Light ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Bactericidal Effects

scholarly journals In vitro and in vivo Efficacy of New Blue Light Emitting Diode Phototherapy Compared to Conventional Halogen Quartz Phototherapy for Neonatal Jaundice

2005 ◽  
Vol 20 (1) ◽  
pp. 61 ◽  
Author(s):  
Yun Sil Chang ◽  
Jong Hee Hwang ◽  
Hyuk Nam Kwon ◽  
Chang Won Choi ◽  
Sun Young Ko ◽  
...  
Keyword(s):  
Blue Light ◽  
Neonatal Jaundice ◽  
Light Emitting Diode ◽  
In Vivo Efficacy ◽  
Light Emitting

Antimicrobial Activity of an Implantable Wireless Blue Light-Emitting Diode Against Root Canal Biofilm In Vitro

2020 ◽  
Vol 38 (11) ◽  
pp. 694-702
Author(s):  
Ludan Zhang ◽  
Yamin Li ◽  
Qian Zhang ◽  
Ning Du ◽  
Xuefen Li ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Blue Light ◽  
Root Canal ◽  
Light Emitting Diode ◽  
Light Emitting

Conditioned media from blue light-emitting diode–exposed fibroblasts have an anti-inflammatory effect in vitro

2020 ◽  
Vol 36 (1) ◽  
pp. 99-109
Author(s):  
Phil-Sun Oh ◽  
Eun-Mi Kim ◽  
SeokTae Lim ◽  
Myung-Hee Sohn ◽  
Hwan-Jeong Jeong
Keyword(s):  
Blue Light ◽  
Light Emitting Diode ◽  
Conditioned Media ◽  
Light Emitting ◽  
Anti Inflammatory ◽  
Inflammatory Effect

scholarly journals Blue Light Induces Down-Regulation of Aquaporin 1, 3, and 9 in Human Keratinocytes

Cells ◽  
2018 ◽  
Vol 7 (11) ◽  
pp. 197 ◽  
Author(s):  
Rosanna Avola ◽  
Adriana Graziano ◽  
Giovanna Pannuzzo ◽  
Venera Cardile
Keyword(s):  
Blue Light ◽  
Light Emitting Diode ◽  
Human Keratinocytes ◽  
Skin Aging ◽  
Nuclear Antigen ◽  
Down Regulation ◽  
Light Emitting ◽  
Proliferation And Differentiation ◽  
Vitro Model

The development in digital screen technology has exponentially increased in the last decades, and many of today’s electronic devices use light-emitting diode (LED) technology producing very strong blue light (BL) waves. Long-term exposure at LED-BL seems to have an implication in the dehydration of the epidermis, in the alterations of shape and number of the keratinocytes, and in the aging of the skin. Aquaporins (AQPs) are water membrane channels that permeate both water and glycerol and play an important role in the hydration of epidermis, as well as in proliferation and differentiation of keratinocytes. Thus, we have hypothesized that AQPs could be involved in the aging of the skin exposed to LED-BL. Therefore, we have examined the expression of AQPs in human keratinocytes exposed to LED-BL at dose of 45 J/cm2, used as an in vitro model to produce the general features of photo aging of the skin. The aim was to verify if LED-BL induces changes of the basal levels of AQPs. The keratinocytes exposure to LED-BL produced an increase of reactive oxygen species (ROS), an activation of 8-hydroxy-2’-deoxyguanosine (8-OHdG), an alteration of proliferating cell nuclear antigen (PCNA), and a down-regulation of AQP1, 3 and 9. These findings are preliminary evidences that may be used as starting points for further investigations about the mechanistic involvement of AQP1, 3, and 9 in LED-BL-induced skin aging.

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