Academic literature on the topic 'Violet-blue light'

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Journal articles on the topic "Violet-blue light"

1

Choi, Won Chel, Ho Nyung Lee, Eun Kyu Kim, et al. "Violet/blue light-emitting cerium silicates." Applied Physics Letters 75, no. 16 (1999): 2389–91. http://dx.doi.org/10.1063/1.125023.

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2

Felix Gomez, Grace Gomez, Frank Lippert, Masatoshi Ando, Andrea F. Zandona, George J. Eckert, and Richard L. Gregory. "Photoinhibition of Streptococcus mutans Biofilm-Induced Lesions in Human Dentin by Violet-Blue Light." Dentistry Journal 7, no. 4 (2019): 113. http://dx.doi.org/10.3390/dj7040113.

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This in vitro study determined the effectiveness of violet-blue light on Streptococcus mutans (UA159) biofilm induced dentinal lesions. Biofilm was formed on human dentin specimens in a 96-well microtiter plate and incubated for 13 h in the presence of tryptic soy broth (TSB) or TSB supplemented with 1% sucrose (TSBS). Violet-blue light (405 nm) from quantitative light-induced fluorescence (QLFTM) was used to irradiate the biofilm. Supernatant liquid was removed, and the biofilm was irradiated continuously with QLF for 5 min twice daily with an interval of 6 h for 5 d, except with one treatmen
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Awad, Doaa, Joanna Wilińska, Dimitra Gousia, et al. "Toxicity and phototoxicity in human ARPE-19 retinal pigment epithelium cells of dyes commonly used in retinal surgery." European Journal of Ophthalmology 28, no. 4 (2018): 433–40. http://dx.doi.org/10.1177/1120672118766446.

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Purpose: To compare, for the first time, systematically the toxicity and phototoxicity of dyes and dye combinations used in vitreoretinal surgery. The dyes were trypan blue, brilliant blue G, trypan blue + brilliant blue G, indocyanine green, bromophenol blue, bromophenol blue + brilliant blue G, and acid violet 17, in clinically used concentrations. Methods: Human ARPE retinal pigment epithelium cells were exposed to the dyes for 30 min. For phototoxicity, the cells were exposed for 15 min to high-intensity light from a light emitting diode source with an intensity similar to surgical conditi
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4

Tung, Ha Thanh, Huu Phuc Dang, and Phung Ton That. "The impacts of green LaBSiO<sub>5</sub>: Tb<sup>3+</sup>, Ce<sup>3+</sup> phosphor on lumen output of white LEDs." Bulletin of Electrical Engineering and Informatics 12, no. 3 (2023): 1458–63. http://dx.doi.org/10.11591/eei.v12i3.4772.

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The traditional solid-state technique was used to create LaBSiO5 phosphors doped with Ce3+ and Tb3+ at 1,100 °C. These phosphors' phase purity and luminous characteristics are looked at. Under ultraviolet (UV) light stimulation, LaBSiO5: Tb3+ phosphors emit bright green light, whereas LaBSiO5 samples incorporated with Ce3+ emit blue-violet light. With UV ray stimulation, LaBSiO5 samples incorporated with Ce3+ as well as Tb3+ emit blue-violet as well as green illumination. The 5d-4f shift for Ce3+ is responsible for the blue-violet radiation, while the 5D4→7F5 transition of Tb3+ is responsible
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Veleska-Stevkoska, Daniela, and Filip Koneski. "Haemostasis in Oral Surgery with Blue-Violet Light." Open Access Macedonian Journal of Medical Sciences 6, no. 4 (2018): 687–91. http://dx.doi.org/10.3889/oamjms.2018.181.

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BACKGROUND: The invasive dental procedures usually result in wounds accompanied by physiological bleeding. Even though the bleeding is easily manageable, it is still one of the major concerns of the patients and a reason for their subjective discomfort. Recently, a novel approach with light-emitting diode (LED) was introduced to control the bleeding. This study aims to examine the effectiveness of the irradiation with blue-violet light LEDs on the haemostasis.MATERIAL AND METHODS: The study included 40 patients with an indication for tooth extraction, divided into two groups: examination group
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Sasaki, Kentaro, Norikazu Kawamura, Haruki Tokumaru, and Yasuhiro Kuwana. "Blue-Violet Four-Beam Light Source Using Waveguides." Japanese Journal of Applied Physics 46, no. 6B (2007): 3729–36. http://dx.doi.org/10.1143/jjap.46.3729.

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Qiu, Chengfeng, Haiying Chen, Man Wong, and Hoi S. Kwok. "Efficient blue-to-violet organic light-emitting diodes." Synthetic Metals 140, no. 1 (2004): 101–4. http://dx.doi.org/10.1016/s0379-6779(03)00359-x.

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Dmitriev, V. A., Ya V. Morozenko, B. V. Tzarenkov, and V. E. Chelnokov. "Silicon carbide blue and violet light-emitting diodes." Displays 13, no. 2 (1992): 97–106. http://dx.doi.org/10.1016/0141-9382(92)90104-y.

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Brgoch, Jakoah, and Shruti Hariyani. "(Invited) Advancing Human-Centric Lighting." ECS Meeting Abstracts MA2022-02, no. 51 (2022): 1958. http://dx.doi.org/10.1149/ma2022-02511958mtgabs.

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The concept of human-centric lighting stems from the evolution of sunlight’s intensity and color temperature throughout the course of a day. This natural progression of bright cold-white light during the middle of the day to a softer warm-white light in the evening stimulates intrinsic photosensitive retinal ganglion cells that control our circadian rhythm. The blue-hue of daylight activates these cells to produce dopamine and cortisol while suppressing melatonin, the sleep hormone, to keep humans awake and alert. The current generation of energy-efficient LED lights reproduce daylight by conv
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10

Sandall, Sharon K., and R. Daniel Lineberger. "Stabilization of Chimeral African Violet Clones by In Vitro Inflorescence Culture." HortScience 32, no. 4 (1997): 593D—593. http://dx.doi.org/10.21273/hortsci.32.4.593d.

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The pinwheel-flowering African violet `Silver Summit', apericlinal chimera, has bicolor flowers with violet-blue corolla segment margins and white central stripes. Several off types were produced during in vitro culture of `Silver Summit'—solid violet-blue flowering from leaf or petiole explants, solid white flowering from petiole core explants, and two reverse pinwheel flowering types. The reverse pinwheel types varied in color; one had deep violet-blue stripes (DR, dark reverse) and the other had lighter stripes of the same color (LR, light reverse). Plantlets derived from inflorescence cult
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