98%
921
2 minutes
20
An electrically tunable photonic crystal is developed utilizing crystalline colloidal arrays of high refractive index particles. Through modulation of the refractive index of the particle, and the applied electric field, both the bandwidth and position of the photonic bandgap could be tuned. Full color modulation with high optical quality is achieved, which paves a way to develop a novel reflective display.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1002/adma.201203211 | DOI Listing |
Int J Cosmet Sci
September 2025
LVMH Recherche, CEECI, Neuilly-sur-Seine, France.
In the human face, the lips play a key role in social interactions and are a major element of makeup strategies. However, the amount of data available on lips, particularly relating to colour, is limited in comparison to that on skin. To gain a better understanding of lip colour, this study aimed to assess its diversity across four ethnicities (Asian Chinese, African American, Hispanic American and Caucasian American and French).
View Article and Find Full Text PDFAdv Mater
September 2025
State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
Helicene-based circularly polarized luminescence (CPL) materials suffer from severely low color purity in circularly polarized organic light-emitting diodes (CP-OLEDs). Here, a novel molecular engineering strategy is introduced by replacing helicene containing continuous fused benzene rings with a multiple resonance (MR) framework comprising discontinuous fused benzene rings. This approach effectively suppresses high-frequency C─C bond stretching vibrations and enhances short-range charge transfer, enabling high color purity, CPL activity, and efficient thermally activated delayed fluorescence (TADF).
View Article and Find Full Text PDFAesthetic Plast Surg
September 2025
Department of Otolaryngology, Masih Daneshvari Hospital, Neyavran, Darabad, Tehran, Iran.
Nasal alar reconstruction is complex due to the region's anatomy and aesthetic importance. This report describes repairing a small, full-thickness alar rim defect in a 36-year-old man using a rotational columellar skin flap with septal cartilage grafting. This single-stage technique achieved good color match, symmetry, and minimal donor-site morbidity.
View Article and Find Full Text PDFACS Nano
September 2025
Center for High-Entropy Energy and Systems, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China.
Mechanical stimuli have been shown to dynamically alter solid-liquid interfaces and induce electron transfer, enabling catalytic reactions, most notably contact-electro-catalysis (CEC). However, the underlying mechanism of charge transfer at solid-liquid interfaces under mechanical stimulation remains unclear, particularly at semiconductor-liquid interfaces. To date, rare studies have reported on the catalytic activity of semiconductor-liquid interfaces under mechanical stimulation.
View Article and Find Full Text PDFLuminescence
September 2025
School of Chemistry, South China Normal University, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou, C
A series of 2-substituted 4H-chromen-4-ones 3a-3h containing triphenylamine or N-phenylcarbazole on the benzene ring were synthesized for the first time via the Suzuki coupling reaction. The photophysical properties of the compounds and their relationship to the structure of the compounds were investigated by methods such as spectroscopic analysis, single-crystal analysis, and theoretical calculations. The systematic results indicate that compounds 3a-3h have intramolecular charge transfer (ICT), aggregation-induced emission (AIE), and dual-state emission (DSE) effects with a wide range of fluorescence emission wavelengths (421-618 nm), showing the potential to be developed into a full-color fluorophore.
View Article and Find Full Text PDF