keyword
MENU ▼
Read by QxMD icon Read
search

Light emitting diodes skin

keyword
https://www.readbyqxmd.com/read/28342007/the-effect-of-led-on-blood-microcirculation-during-chronic-wound-healing-in-diabetic-and-non-diabetic-patients-a-prospective-double-blind-randomized-study
#1
Igor Frangez, Ksenija Cankar, Helena Ban Frangez, Dragica Maja Smrke
Chronic wounds, especially in diabetic patients, represent a challenging health issue. Since standard treatment protocols often do not provide satisfactory results, additional treatment methods-like phototherapy using low-level light therapy-are being investigated. The aim of our study was to evaluate the effect of phototherapy with light-emitting diodes on chronic wound treatment in diabetic and non-diabetic patients. Since a sufficient blood supply is mandatory for wound healing, the evaluation of microcirculation in the healthy skin at a wound's edge was the main outcome measure...
March 25, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28243723/photobiomodulation-therapy-for-the-management-of-radiation-induced-dermatitis-a%C3%A2-single-institution-experience-of-adjuvant-radiotherapy-in-breast-cancer-patients-after-breast-conserving-surgery
#2
Iosif Strouthos, Georgios Chatzikonstantinou, Nikolaos Tselis, Dimitra Bon, Efstratios Karagiannis, Eleni Zoga, Konstantinos Ferentinos, Julia Maximenko, Vassiliki Nikolettou-Fischer, Nikolaos Zamboglou
BACKGROUND: Radiation therapy (RT) comprises a key component in the treatment of breast cancer. Radiation-induced skin toxicity is the major adverse event experienced by patients; however, radiodermatitis (RD) prevention and management remains trivial. It is proven that photobiomodulation (PBM) therapy using light-emitting diode (LED) increases wound healing and depicts an anti-inflammatory effect. This single-institute study evaluates the beneficial role of PBM-LED in preventing/reducing RD during breast cancer RT...
February 27, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28216605/an-overview-of-stress-induced-resveratrol-synthesis-in-grapes-perspectives-for-resveratrol-enriched-grape-products
#3
REVIEW
Mohidul Hasan, Hanhong Bae
Resveratrol is the most important stilbene phytoalexin synthesized naturally or induced in plants, as a part of their defense mechanism. Grapes and their derivative products, including juice and wine, are the most important natural sources of resveratrol, consisting of notably higher amounts than other natural sources like peanuts. Consumption of red wine with its presence of resveratrol explained the "French Paradox". Hence, the demand of resveratrol from grapes is increasing. Moreover, as a natural source of resveratrol, grapes became very important in the nutraceutical industry for their benefits to human health...
February 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28195844/the-efficacy-and-safety-of-660-nm-and-411-to-777-nm-light-emitting-devices-for-treating-wrinkles
#4
Chan Hee Nam, Byung Cheol Park, Myung Hwa Kim, Eun Hee Choi, Seung Phil Hong
BACKGROUND: Low-level light therapy (LLLT) using light-emitting diodes (LEDs) is considered to be helpful for skin regeneration and anti-inflammation. OBJECTIVE: To evaluate the efficacy and safety of 2 types of LLLTs using 660 nm-emitting red LEDs and 411 to 777 nm-emitting white LEDs in the treatment of facial wrinkles. MATERIALS AND METHODS: A prospective, randomized, double-blinded, comparative clinical trial involving 52 adult female subjects was performed...
February 9, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28099202/early-changes-in-facial-profile-following-structured-filler-rhinoplasty-an-anthropometric-analysis-using-a-3-dimensional-imaging-system
#5
Nark Kyoung Rho, Je Young Park, Choon Shik Youn, Soo-Keun Lee, Hei Sung Kim
BACKGROUND: Quantitative measurements are important for objective evaluation of postprocedural outcomes. Three-dimensional (3D) imaging is known as an objective, accurate, and reliable system for quantifying the soft tissue dimensions of the face. OBJECTIVE: To compare the preprocedural and acute postprocedural nasofrontal, nasofacial, nasolabial, and nasomental angles, early changes in the height and length of the nose, and nasal volume using a 3D surface imaging with a light-emitting diode...
February 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28027199/the-combination-of-resveratrol-and-high-fluence-light-emitting-diode-red-light-produces-synergistic-photobotanical-inhibition-of-fibroblast-proliferation-and-collagen-synthesis-a-novel-treatment-for-skin-fibrosis
#6
Andrew Mamalis, Jared Jagdeo
BACKGROUND: Skin fibrosis is a debilitating condition that significantly impacts patient quality of life. Ultraviolet phototherapy is currently used to treat several diseases featuring skin fibrosis. High-fluence light-emitting diode-generated red light (HF-LED-RL) does not cause DNA damage associated with skin cancer, and it is generally regarded as safe, portable, and cost-effective. Early clinical observations suggest that LED-generated light may possess antifibrotic effects, although these findings are largely unexplored...
January 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/27910259/safety-efficacy-and-usage-compliance-of-home-use-device-utilizing-rf-and-light-energies-for-treating-periorbital-wrinkles
#7
Michael H Gold, Julie Biron, Liora Levi, Whitney Sensing
BACKGROUND: The aging process is often associated with undesirable effects on facial skin such as skin redundancy, reduction of elasticity, and increased wrinkling. Radiofrequency (RF) and light-emitting diodes (LEDs) are widely used, clinically proven technologies for skin rejuvenation. STUDY OBJECTIVE: This study aimed to evaluate the safety, efficacy, and usage compliance of the home-use device, utilizing RF and LED energies, for self-treatment of periorbital wrinkles and improvement of skin appearance...
December 2, 2016: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/27862355/recent-progress-on-stretchable-electronic-devices-with-intrinsically-stretchable-components
#8
Tran Quang Trung, Nae-Eung Lee
Stretchable electronic devices with intrinsically stretchable components have significant inherent advantages, including simple fabrication processes, a high integrity of the stacked layers, and low cost in comparison with stretchable electronic devices based on non-stretchable components. The research in this field has focused on developing new intrinsically stretchable components for conductors, semiconductors, and insulators. New methodologies and fabrication processes have been developed to fabricate stretchable devices with intrinsically stretchable components...
November 14, 2016: Advanced Materials
https://www.readbyqxmd.com/read/27772719/photosensitive-semiconducting-polymer-incorporated-nanofibers-for-promoting-the-regeneration-of-skin-wound
#9
Guorui Jin, Jun Li, Kai Li
Photosensitive semiconducting polymer (SP) combined with light stimulation has shown the capability in promoting the proliferation of human dermal fibroblasts (HDFs). However, the high cytotoxicity of the used SP hindered its further application in bioactive scaffolds. In this contribution, we designed and synthesized a SP, poly (N,N-bis(2-octyldodecyl)-3,6-di(thiophen-2-yl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione-alt-thieno[3,2-b]thiophene) (PDBTT) with low cytotoxicity and strong absorbance in red and near-infrared region (600-1200nm)...
January 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/27768753/origin-of-infrared-light-modulation-in-reflectance-mode-photoplethysmography
#10
Igor S Sidorov, Roman V Romashko, Vasily T Koval, Rashid Giniatullin, Alexei A Kamshilin
We recently pointed out the important role of dermis deformation by pulsating arterial pressure in the formation of a photoplethysmographic signal at green light. The aim of this study was to explore the role of this novel finding in near-infrared (NIR) light. A light-emitting diode (LED)-based imaging photoplethysmography (IPPG) system was used to detect spatial distribution of blood pulsations under frame-to-frame switching green and NIR illumination in the palms of 34 healthy individuals. We observed a significant increase of light-intensity modulation at the heartbeat frequency for both illuminating wavelengths after a palm was contacted with a glass plate...
2016: PloS One
https://www.readbyqxmd.com/read/27761093/finger-shaped-red-light-emitting-diode-to-ascertain-the-depth-of-periungual-wart
#11
Balakrishnan Nirmal
Management of periungual wart is a great challenge, especially when there is subungual extension. The major cause of recurrence of wart is improper clinical assessment of its extent and not directing therapy against the entire wart. This difficulty of ascertaining its extent could be overcome with this finger-shaped red light emitting diode device. Red light in the device penetrates the thick palmar skin and dark constitutive skin colour due to its longer wavelength.
July 2016: Journal of Cutaneous and Aesthetic Surgery
https://www.readbyqxmd.com/read/27743509/remote-vital-parameter-monitoring-in-neonatology-robust-unobtrusive-heart-rate-detection-in-a-realistic-clinical-scenario
#12
Nikolai Blanik, Konrad Heimann, Carina Pereira, Michael Paul, Vladimir Blazek, Boudewijn Venema, Thorsten Orlikowsky, Steffen Leonhardt
Vital parameter monitoring of term and preterm infants during incubator care with self-adhesive electrodes or sensors directly positioned on the skin [e.g. photoplethysmography (PPG) for oxygen saturation or electrocardiography (ECG)] is an essential part of daily routine care in neonatal intensive care units. For various reasons, this kind of monitoring contains a lot of stress for the infants. Therefore, there is a need to measure vital parameters (for instance respiration, temperature, pulse, oxygen saturation) without mechanical or conductive contact...
December 1, 2016: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/27743384/a-low-power-and-miniaturized-electrocardiograph-data-collection-system-with-smart-textile-electrodes-for-monitoring-of-cardiac-function
#13
Ming Dai, Xueliang Xiao, Xin Chen, Haoming Lin, Wanqing Wu, Siping Chen
With the increasing aging population as well as health concerns, chronic heart disease has become the focus of public attention. A comfortable, low-powered, and wearable electrocardiogram (ECG) system for continuously monitoring the elderly's ECG signals over several hours is important for preventing cardiovascular diseases. Traditional ECG monitoring apparatus is often inconvenient to carry, has many electrodes to attach to the chest, and has a high-power consumption. There is also a challenge to design an electrocardiograph that satisfies requirements such as comfort, confinement, and compactness...
December 2016: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/27696509/inhibitory-effect-of-660-nm-led-on-melanin-synthesis-in-in%C3%A2-vitro-and-in%C3%A2-vivo
#14
Chang Taek Oh, Tae-Rin Kwon, Eun Ja Choi, Soon Re Kim, Joon Seok, Seog Kyun Mun, Kwang Ho Yoo, Yeon Shik Choi, Sun Young Choi, Beom Joon Kim
BACKGROUND: Skin hyperpigmentary disorders including postinflammatory hyperpigmentation, melasma, solar lentigines, and conditions like freckles are common. The light-emitting diodes (LEDs) are the latest category of nonthermal and noninvasive phototherapy to be considered in skin pigmentation disorder treatment. PURPOSE: The purpose of this study was to investigate the effects of 660-nm LED on inhibition of melanogenesis. We investigated whether a 660-nm LED affected melanin synthesis in in vitro and in vivo models, and we explored the mechanisms involved...
January 2017: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/27663159/skin-photorejuvenation-effects-of-light-emitting-diodes-leds-a-comparative-study-of-yellow-and-red-leds-in%C3%A2-vitro-and-in%C3%A2-vivo
#15
S K Kim, H R You, S H Kim, S J Yun, S C Lee, J B Lee
BACKGROUND: Red-coloured light-emitting diodes (LEDs) can improve skin photorejuvenation and regeneration by increasing cellular metabolic activity. AIM: To evaluate the effectiveness of visible LEDs with specific wavelengths for skin photorejuvenation in vitro and in vivo. METHODS: Normal human dermal fibroblasts (HDFs) from neonatal foreskin were cultured and irradiated in vitro by LEDs at different wavelengths (410-850 nm) and doses (0-10 J/cm(2) )...
October 2016: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/27558155/a-fast-multispectral-light-synthesiser-based-on-leds-and-a-diffraction-grating
#16
Gregor Belušič, Marko Ilić, Andrej Meglič, Primož Pirih
Optical experiments often require fast-switching light sources with adjustable bandwidths and intensities. We constructed a wavelength combiner based on a reflective planar diffraction grating and light emitting diodes with emission peaks from 350 to 630 nm that were positioned at the angles corresponding to the first diffraction order of the reversed beam. The combined output beam was launched into a fibre. The spacing between 22 equally wide spectral bands was about 15 nm. The time resolution of the pulse-width modulation drivers was 1 ms...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27493994/battery-free-stretchable-optoelectronic-systems-for-wireless-optical-characterization-of-the-skin
#17
Jeonghyun Kim, Giovanni A Salvatore, Hitoshi Araki, Antonio M Chiarelli, Zhaoqian Xie, Anthony Banks, Xing Sheng, Yuhao Liu, Jung Woo Lee, Kyung-In Jang, Seung Yun Heo, Kyoungyeon Cho, Hongying Luo, Benjamin Zimmerman, Joonhee Kim, Lingqing Yan, Xue Feng, Sheng Xu, Monica Fabiani, Gabriele Gratton, Yonggang Huang, Ungyu Paik, John A Rogers
Recent advances in materials, mechanics, and electronic device design are rapidly establishing the foundations for health monitoring technologies that have "skin-like" properties, with options in chronic (weeks) integration with the epidermis. The resulting capabilities in physiological sensing greatly exceed those possible with conventional hard electronic systems, such as those found in wrist-mounted wearables, because of the intimate skin interface. However, most examples of such emerging classes of devices require batteries and/or hard-wired connections to enable operation...
August 2016: Science Advances
https://www.readbyqxmd.com/read/27484782/a-single-blind-dose-escalation-phase-i-study-of-high-fluence-light-emitting-diode-red-light-led-rl-on-human-skin-study-protocol-for-a-randomized-controlled-trial
#18
Derek Ho, Ekaterina Kraeva, Ted Wun, R Rivkah Isseroff, Jared Jagdeo
BACKGROUND: Skin fibrosis is involved in a variety of pathologic conditions ranging from scar formation secondary to surgery or trauma to immune-mediated processes. Skin fibrosis is a significant international health problem with an estimated incidence of greater than 100 million people affected per year worldwide with few effective treatment options available. Preliminary in vitro data generated by our research group suggests that red light can function as a stand-alone treatment for skin fibrosis...
August 2, 2016: Trials
https://www.readbyqxmd.com/read/27434639/continuous-patterning-of-copper-nanowire-based-transparent-conducting-electrodes-for-use-in-flexible-electronic-applications
#19
Zhaoyang Zhong, Hyungjin Lee, Dongwoo Kang, Sin Kwon, Young-Man Choi, Inhyuk Kim, Kwang-Young Kim, Youngu Lee, Kyoohee Woo, Jooho Moon
Simple, low-cost and scalable patterning methods for Cu nanowire (NW)-based flexible transparent conducting electrodes (FTCEs) are essential for the widespread use of Cu NW FTCEs in numerous flexible optoelectronic devices, wearable devices, and electronic skins. In this paper, continuous patterning for Cu NW FTCEs via a combination of selective intense pulsed light (IPL) and roll-to-roll (R2R) wiping process was explored. The development of continuous R2R patterning could be achieved because there was significant difference in adhesion properties between NWs and substrates depending on whether Cu NW coated area was irradiated by IPL or not...
August 23, 2016: ACS Nano
https://www.readbyqxmd.com/read/27417568/photodynamic-therapy-with-intralesional-methylene-blue-and-a-635-nm-light-emitting-diode-lamp-in-hidradenitis-suppurativa-a-retrospective-follow-up-study-in-7-patients-and-a-review-of-the-literature
#20
Eugènia Agut-Busquet, Jorge Romaní, Yolanda Gilaberte, Ana García-Malinis, Miquel Ribera-Pibernat, Jesús Luelmo
Hidradenitis suppurativa is a chronic inflammatory skin disease which has an estimated prevalence of 1%. It is characterized by the formation of recurrent painful suppurative nodules and abscesses in the flexural areas of the body. It is believed that its pathogenesis involves an aberrant, genetically-determined activation of innate immunity against the bacterial commensal flora of intertriginous areas. It has been found that the formation of antibiotic-resistant bacterial biofilms is a common finding in hidradenitis lesions...
August 4, 2016: Photochemical & Photobiological Sciences
keyword
keyword
104506
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"