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Dual-Functional Carbon Dot Films: Blue-Light Filtration and Cyan-Light Conversion for Healthier White Light-Emitting Diodes.
Nano Lett
January 2025
Department of Physics, Umeå University, Linnaeus väg 24, Umeå SE-90187, Sweden.
Blue light emitted by commercial white light-emitting diodes (WLEDs) in the 440-470 nm range poses ocular health risks with prolonged exposure. Effective filtration is crucial for health-conscious lighting, but traditional filters often cause color distortion by completely removing blue emission. In this study, we address this challenge by synthesizing carbon dots (CDs) with strong absorption at 460 nm and bright cyan emission at 485 nm, featuring a photoluminescence quantum yield of 65% and a narrow full width at half-maximum of 30 nm.
View Article and Find Full Text PDFAcute zonal occult outer retinopathy (AZOOR) complex associated with torpedo retinopathy following COVID-19 recombinant mRNA vaccination: a case report of a rare clinical presentation.
BMC Ophthalmol
January 2025
Department of Ophthalmology, Linkou main branch, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Background: While vaccination remains crucial in mitigating the impact of the COVID-19 pandemic, several ocular adverse events has been reported, including Acute Zonal Occult Outer Retinopathy (AZOOR) complex.
Case Presentation: A 31-year-old female presented declined best corrected visual acuity (BCVA) and flashes in both eyes three days following second recombinant mRNA COVID-19 vaccine (Moderna). Fundus autofluorescence (FAF) illustrated speckled hyper-AF lesions surrounding right eye torpedo maculopathy site and hyper-AF lesions in the left macula.
White Light-Emitting Flexible Displays with Quantum-Dot Film and Greenish-Blue Organic Light-Emitting Diodes.
Micromachines (Basel)
December 2024
Department of Semiconductor Engineering, Gachon University, 1342 Seongnam-Daero, Soojung-gu, Seongnam 13120, Republic of Korea.
White organic light-emitting diodes (OLEDs) represent a significant technology in the display industry for the achievement of full color. However, sophisticated technologies are required for white light emission. In this paper, we developed a simple white light-emitting display device using a quantum-dot (QD) film and a greenish-blue OLED.
View Article and Find Full Text PDFBenign Yellow Dot Maculopathy: A Case Series of Patients With a Recently Discovered Macular Phenotype.
Cureus
November 2024
Department of Ophthalmology, Unidade Local de Saúde (ULS) Santa Maria, Lisbon, PRT.
Benign yellow dot maculopathy (BYDM) is a recently described rare, asymptomatic, early onset, and non-progressive macular phenotype. It is characterized by the presence of multiple white-yellow dots encircling the fovea, which are hyperautofluorescent on fundus autofluorescence. Here, we expand on the few reports available by presenting a case series of five Portuguese patients with clinical BYDM phenotype and congruent multimodal imaging, including the second reported unilateral case.
View Article and Find Full Text PDFDermoscopy of Scabies: Utility of Polarised and Ultraviolet-Induced Fluorescence Examination in Fair and Dark Skin.
Australas J Dermatol
December 2024
Department of Medical Area, Institute of Dermatology, University of Udine, Udine, Italy.
Introduction: Ultraviolet-based dermoscopy may support the recognition of scabies, yet neither accuracy analyses nor data on skin of colour are available. The aim of this multicentric observational retrospective was to investigate the diagnostic accuracy of polarised and ultraviolet-induced fluorescence (UVF) dermoscopic examination in both fair and dark skin, also assessing possible differences according to the skin tone.
Methods: Consecutive patients with a diagnosis of scabies were eligible.
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