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Light emitting diodes skin

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https://www.readbyqxmd.com/read/29200774/therapeutic-effects-of-a-light-emitting-diode-at-a-variety-of-wavelengths-on-atopic-dermatitis-like-skin-lesions-in-nc-nga-mice
#1
Eun Ah Cho, Ye Jin Lee, Yun Hee Ryu, Ju Hee Han, Ji Hyun Lee, Young Min Park
No abstract text is available yet for this article.
December 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/29156237/skeleton-skin-structured-rgo-cnts-pani-composite-fiber-electrodes-with-excellent-mechanical-and-electrochemical-performance-for-all-solid-state-symmetric-supercapacitors
#2
Dong Liu, Pengcheng Du, Wenli Wei, Hongxing Wang, Qi Wang, Peng Liu
Polyaniline coated reduced graphene oxide/carbon nanotube composite fibers ((RGO/CNTs)@PANI, RCP) with skeleton/skin structure are designed as fiber-shaped electrodes for high performance all-solid-state symmetric supercapacitor. The one-dimensional reduced graphene oxide/carbon nanotube composite fibers (RGO/CNTs, RC) are prepared via a simple in-situ reduction of graphene oxide in presence of carbon nanotubes in quartz glass pipes, which exhibit excellent mechanical performance of >193.4 MPa of tensile strength...
November 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29120857/the-safety-and-efficacy-of-light-emitting-diodes-based-ultraviolet-a1-phototherapy-in-bleomycin-induced-scleroderma-in-mice
#3
Diana Karpec, Romualdas Rudys, Laima Leonaviciene, Zygmunt Mackiewicz, Ruta Bradunaite, Gailute Kirdaite, Algirdas Venalis
PURPOSE: To define the efficacy and safety of narrowband ultraviolet A1 (UVA1) for the treatment of dermal fibrosis in bleomycin-induced mouse model of scleroderma. MATERIALS AND METHODS: 42 DBA/2 strain mice were included in the study: healthy mice and mice with established scleroderma, treated with high or medium dose of UVA1. Non-treated groups served as control. The equipment emitting 365±5nm UVA1 radiation was used in the study. The average cumulative doses were 1200J/cm2 for high and 600J/cm2 for medium dose course...
November 6, 2017: Advances in Medical Sciences
https://www.readbyqxmd.com/read/29071035/a-comparative-study-of-660-nm-low-level-laser-and-light-emitted-diode-in-proliferative-effects-of-fibroblast-cells
#4
Mina Sadat Naderi, Mohammadreza Razzaghi, Gholamreza Esmaeeli Djavid, Zahra Hajebrahimi
Introduction: In recent years, low-power lasers have been widely used in medicine. With the introduction of affordable light emitted diode (LED), clinical application of LED light has become more and more popular. However, some researchers believe that due to lack of coherence of the LED light, it can be different in terms of biological effects, in comparison with laser. In this study, the biological effects of low-level laser (LLL) to those of LED light are compared and discussed. Methods: Human skin fibroblast cell line Hu02 was irradiated with LLL and LED light with a wavelength of 660 nm, power output of 35 mW and in continuous mode and the control group was not irradiated...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29067616/a-clinical-review-of-phototherapy-for-psoriasis
#5
REVIEW
Ping Zhang, Mei X Wu
Psoriasis is an autoimmune inflammatory skin disease. In the past several decades, phototherapy has been widely used to treat stable psoriatic lesions, including trunk, scalp, arms and legs, and partial nail psoriasis. A variety of light/lasers with different mechanisms of action have been developed for psoriasis including ultraviolet B (UVB), psoralen ultraviolet A (PUVA), pulsed dye laser (PDL), photodynamic therapy (PDT), intense pulsed light (IPL), light-emitting diodes (LED), and so on. Because light/laser each has specific therapeutic and adverse effects, it is important to adequately choose the sources and parameters in management of psoriasis with different pathogenic sites, severities, and duration of the disorder...
October 24, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29065997/light-emitting-diode-585nm-photomodulation-inhibiting-melanin-synthesis-and-inducing-autophagy-in-human-melanocytes
#6
Li Chen, Zhongyi Xu, Min Jiang, Chengfeng Zhang, Xuan Wang, Leihong Xiang
BACKGROUND: Melasma is a common hyperpigmentation skin disease on face. Light-emitting diode (LED) photomodulation (585nm) is reported to be effective for the treatment of melasma. However, whether and how LED photomodulation would influence melanogenesis of human epidermal melanocytes (HEMs) is unknown. OBJECTIVE: To evaluate the effects of LED photomodulation (585nm) on melanogenesis in HEMs. METHODS: HEMs were irradiated with fluences of 0, 5, 10 and 20J/cm(2) 585nm LED light...
October 11, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/29060666/a-wearable-eeg-based-massage-headband-for-anxiety-alleviation
#7
M Nair Chaitanya, Sharmila Jayakkumar, Edwin Chong, C H Yeow
In this work, we would like to discuss our findings obtained from the newly proposed hardware design for anxiety detection and its mitigation where a subject's state of mind is identified from the neurological data retrieved. A feedback-based network implemented for stress alleviation mainly comprises of a pair of massage motors and RGB light-emitting diode (LED) that activate during conditions of stress detected, a custom-made Electroencephalography (EEG)-sensor and a massage motor circuit both functioning on an Arduino driven platform...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28986000/the-effect-of-light-emitting-diode-590-830%C3%A2-nm-based-low-level-laser-therapy-on-posttraumatic-edema-of-facial-bone-fracture-patients
#8
Woo Yeol Baek, Il Hwan Byun, In Sik Yun, Jae Yoon Kim, Tai Suk Roh, Dae Hyun Lew, Young Seok Kim
PURPOSE: Posttraumatic edema in facial bone fracture patients may interfere with the operation field and delay the schedule. Thus, swiftly reducing the edema alleviates patient discomfort and advances the operation date. Ice packing and compression bandages are often used for such a purpose, but such methods are often inconvenient for the face. In this study, we aim to analyze the effect of light-emitting diode (LED) (590/830 nm)-based low-level laser therapy (LLLT) in posttraumatic edema in facial bone fracture patients...
September 2, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28931040/newborn-skin-reflection-proof-of-concept-for-a-new-approach-for-predicting-gestational-age-at-birth-a-cross-sectional-study
#9
Zilma Silveira Nogueira Reis, Gabriela Luiza Nogueira Vitral, Ingrid Michelle Fonseca de Souza, Maria Albertina Santiago Rego, Rodney Nascimento Guimaraes
BACKGROUND: Current methods to assess the gestational age during prenatal care or at birth are a global challenge. Disadvantages, such as low accessibility, high costs, and imprecision of clinical tests and ultrasonography measurements, may compromise health decisions at birth, based on the gestational age. Newborns' organs and tissues can indirectly indicate their physical maturity, and we hypothesized that evolutionary changes in their skin, detected using an optoelectronic device meter, may aid in estimating the gestational age...
2017: PloS One
https://www.readbyqxmd.com/read/28904394/ultraviolet-b-light-emitting-diodes-leds-are-more-efficient-and-effective-in-producing-vitamin-d3-in-human-skin-compared-to-natural-sunlight
#10
T A Kalajian, A Aldoukhi, A J Veronikis, K Persons, M F Holick
Vitamin D, the sunshine vitamin is important for health. Those with fat malabsorption disorders malabsorb vitamin D and thus must rely on cutaneous production of vitamin D3. Vitamin D3 is generated secondary to exposure to ultraviolet B (UVB) radiation (whether from the sun or from an artificial source). Light emitting diodes (LEDs) have been developed to emit ultraviolet radiation. Little is known about the efficiency of UVB emitting LEDs tuned to different wavelengths for producing vitamin D3 in human skin...
September 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28837773/wearable-electrocardiogram-monitor-using-carbon-nanotube-electronics-and-color-tunable-organic-light-emitting-diodes
#11
Ja Hoon Koo, Seongjin Jeong, Hyung Joon Shim, Donghee Son, Jaemin Kim, Dong Chan Kim, Suji Choi, Jong-In Hong, Dae-Hyeong Kim
With the rapid advances in wearable electronics, the research on carbon-based and/or organic materials and devices has become increasingly important, owing to their advantages in terms of cost, weight, and mechanical deformability. Here, we report an effective material and device design for an integrative wearable cardiac monitor based on carbon nanotube (CNT) electronics and voltage-dependent color-tunable organic light-emitting diodes (CTOLEDs). A p-MOS inverter based on four CNT transistors allows high amplification and thereby successful acquisition of the electrocardiogram (ECG) signals...
October 24, 2017: ACS Nano
https://www.readbyqxmd.com/read/28833644/ultrathin-quantum-dot-display-integrated-with-wearable-electronics
#12
Jaemin Kim, Hyung Joon Shim, Jiwoong Yang, Moon Kee Choi, Dong Chan Kim, Junhee Kim, Taeghwan Hyeon, Dae-Hyeong Kim
An ultrathin skin-attachable display is a critical component for an information output port in next-generation wearable electronics. In this regard, quantum dot (QD) light-emitting diodes (QLEDs) offer unique and attractive characteristics for future displays, including high color purity with narrow bandwidths, high electroluminescence (EL) brightness at low operating voltages, and easy processability. Here, ultrathin QLED displays that utilize a passive matrix to address individual pixels are reported. The ultrathin thickness (≈5...
August 21, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28755402/combination-of-a-2940%C3%A2-nm-er-yag-laser-with-recombinant-bovine-basic-fibroblast-growth-factor-rb-bfgf-and-light-emitting-diode-red-light-led-rl-for-the-treatment-of-striae-alba-a-pilot-study
#13
Jie Shen, Xin-Gang Lu, Jing-Jing Jin, Hong-Wei Wang
BACKGROUND: Striae distensae (SD) are a common dermatologic problem that plagues many people. Although there are many therapeutic modalities have been used to treat SD, effective method has been disappointing for striae Alba. AIMS: To evaluate the clinical and histopathologic efficacy and safety of the 2940-nm erbium yttrium aluminum garnet (Er:YAG) ablative fractional laser (AFL) with recombinant bovine basic fibroblast growth factor (rb-bFGF) and light-emitting diode-red light (LED-RL) for the treatment of striae alba...
July 29, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28747723/thermal-management-of-micro-scale-inorganic-light-emittng-diodes-on-an-orthotropic-substrate-for-biointegrated-applications
#14
Yuhang Li, Jin Chen, Yufeng Xing, Jizhou Song
The orthotropic material with the in-plane thermal conductivity much larger than the off-plane one can control the heat flow direction. This feature provides unique benefits in thermal management of micro-scale inorganic light-emitting diodes (μ-ILEDs) device for biointegrated applications by helping the heat dissipation from μ-ILEDs along the in-plane directions to lower the μ-ILED temperature and prevent the heat dissipation to the tissue along the off-plane direction to ensure a low tissue temperature...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28741866/a-review-of-available-laser-and-intense-light-source-home-devices-a-dermatologist-s-perspective
#15
REVIEW
Margit Lw Juhász, Melissa K Levin, Ellen S Marmur
BACKGROUND: Home optical devices are becoming an increasingly popular treatment modality sought out by patients for dermatologic pathologies such as acne, hair removal and anti-aging, as these devices are a low-cost and convenient therapy choice. METHODS: An Internet search using PubMed.gov was completed with search terms, "home device dermatology," "home device acne," "home device hair" or "hair removal," and "home device aging." RESULTS: Currently, there are multiple home optical devices available on the market...
July 25, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28695797/effects-of-630-nm-red-and-460-nm-blue-light-emitting-diode-irradiation-on-healing-of-the-skin-wound-in-japanese-big-ear-white-rabbit
#16
Yanhong Li, Jigang Zhang, Yanfeng Xu, Yunlin Han, Binbin Jiang, Lan Huang, Hua Zhu, Yuhuan Xu, Weiling Yang, Chuan Qin
Objective To observe the effects of 630 nm red light and 460 nm blue light emitting diode irradiation on the healing of skin wounds in Japanese big-ear white rabbits. Methods The skin wound model was established with 8 Japanese big-ear white rabbits. Three parts of vulnus in each rabbit were used:two parts of vulnus were irradiated vertically by red and blue LED light,respectively(15 min/time),and the distance between lights and wounds was 15 cm;the 3(rd) part of the wound was used as a control. On the 21(st) day of the wounds exposure to light,the number of healing wounds and the percentage of healing area were recorded and the treatment effect of these two light sources was compared...
June 20, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/28628685/a-systematic-review-of-light-emitting-diode-led-phototherapy-for-treatment-of-psoriasis-an-emerging-therapeutic-modality
#17
Derek Ho, Eugene Koo, Andrew Mamalis, Jared Jagdeo
<p>Background: Psoriasis is a chronic, inflammatory skin condition. The economic burden of psoriasis is approximately $35.2 billion in the United States per year, and treatment costs are increasing at a higher rate than general inflation. Light emitting diode (LED) phototherapy may represent a cost-effective, efficacious, safe, and portable treatment modality for psoriasis.</p> <p>Objective: The goal of our manuscript is to review the published literature and provide evidence-based recommendations on LED phototherapy for the treatment of psoriasis...
May 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28621565/light-emitting-diode-at-460%C3%A2-%C3%A2-%C3%A2-20%C3%A2-nm-increases-the-production-of-il-12-and-il-6-in-murine-dendritic-cells
#18
Tamires Marielem Carvalho-Costa, Maria Tays Mendes, Marcos Vinicius da Silva, Virmondes Rodrigues, Giuliana Cristina Marre Bruschi Thedei, Carlo Jose Freire Oliveira, Geraldo Thedei
BACKGROUND DATA: Light emitting diode (LED) therapy has been proposed as an option for the treatment of many skin inflammatory processes. Dendritic cells (DCs) are important cells of skin that participate in the initiation and activation of skin immunity. The modulation of these cells by LED could explain much of its effects. OBJECTIVE: Thus, the aim of this study was to examine the effects of LED at 460 ± 20 nm on cytokine production and the expression of surface markers on DCs...
October 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28612929/flexible-organic-inorganic-hybrid-near-infrared-photoplethysmogram-sensor-for-cardiovascular-monitoring
#19
Huihua Xu, Jing Liu, Jie Zhang, Guodong Zhou, Ningqi Luo, Ni Zhao
Wearable photoplethysmogram (PPG) sensors offer convenient and informative measurements for evaluating daily physiological states of individuals. In this work, epidermal and flexible near-infrared (NIR) PPG sensors integrating a low-power, high-sensitivity organic phototransistor (OPT) with a high-efficiency inorganic light-emitting diode are developed. By exploiting an organic bulk heterojunction active layer and a bilayer gate dielectric design, a low voltage (<3 V) operated OPT with NIR responsivity as high as 3...
June 14, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28561953/binary-synergistic-sensitivity-strengthening-of-bioinspired-hierarchical-architectures-based-on-fragmentized-reduced-graphene-oxide-sponge-and-silver-nanoparticles-for-strain-sensors-and-beyond
#20
Songfang Zhao, Lingzhi Guo, Jinhui Li, Ning Li, Guoping Zhang, Yongju Gao, Jia Li, Duxia Cao, Wei Wang, Yufeng Jin, Rong Sun, Ching-Ping Wong
Recently, stretchable electronics have been highly desirable in the Internet of Things and electronic skins. Herein, an innovative and cost-efficient strategy is demonstrated to fabricate highly sensitive, stretchable, and conductive strain-sensing platforms inspired by the geometries of a spiders slit organ and a lobsters shell. The electrically conductive composites are fabricated via embedding the 3D percolation networks of fragmentized graphene sponges (FGS) in poly(styrene-block-butadiene-block-styrene) (SBS) matrix, followed by an iterative process of silver precursor absorption and reduction...
May 31, 2017: Small
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