Anticounterfeiting photonic bilayer films were fabricated by sandwiching two solid-state cholesteric liquid crystal films having different handedness. The fabricated photonic bilayer films were successfully applied to patterning by selective photopolymerization. This photonic bilayer film as a new cryptographic technology is of interest for its anticounterfeiting application.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9043834 | PMC |
| http://dx.doi.org/10.1039/d1ra07021e | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Self-assembled materials with an ordered hydrophilic bilayer for high performance inverted Perovskite solar cells.
Nat Commun
January 2025
Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, China.
While self-assembled material based inverted perovskite solar cells have surpassed power conversion efficiencies of 26%, enhancing their performance in large-area configurations remains a significant challenge. In this work, we report a self-assembled material based hole-selective layer 4-(7H-dibenzo[c,g]carbazol-7-yl)phenyl)phosphonic acid, with a π-expanded conjugation. The enhanced intermolecular π-π interactions facilitate the self-assembly of 4-(7H-dibenzo[c,g]carbazol-7-yl)phenyl)phosphonic acid molecules to form an ordered bilayer with a hydrophilic surface, which passivates the buried perovskite interface defect and enables high-quality and large-area perovskite preparation, while simultaneously enhancing interfacial charge extraction and transport.
View Article and Find Full Text PDFMembrane-targeted push-pull azobenzenes for the optical modulation of membrane potential.
Light Sci Appl
January 2025
Center for Nanoscience and Technology, Istituto Italiano di Tecnologia, Milano, 20134, Italy.
We introduce a family of membrane-targeted azobenzenes (MTs) with a push-pull character as a new tool for cell stimulation. These molecules are water soluble and spontaneously partition in the cell membrane. Upon light irradiation, they isomerize from trans to cis, changing the local charge distribution and thus stimulating the cell response.
View Article and Find Full Text PDFNear-infrared light therapy normalizes amyloid load, neuronal lipid membrane order, rafts and cholesterol level in Alzheimer's disease.
J Photochem Photobiol B
December 2024
Center for Biomedical Photonics, College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, PR China. Electronic address:
Cholesterol dysregulation, disorder of neuronal membrane lipid packing, and lipid rafts lead to the synthesis and accumulation of toxic amyloid-β (Aβ), contributing to the development of Alzheimer's disease (AD). Our study shows that near-infrared (NIR) transcranial photobiomodulation therapy (tPBMT) can reduce Aβ load and restore the properties of neuronal plasma membrane, including Aβ production, bilayer order, rafts, lipid content, and Ca channels during AD. Mice in the experiments were exposed to 808-nm LED for 1 h daily over 3 months.
View Article and Find Full Text PDFMonte Carlo (MC) simulations can adequately describe photon migration in layered media; however, storing and querying the resulting dataset may be computationally prohibitive when detailed path data are needed for each photon trajectory. A heuristic approach that significantly reduces the stored information to the average path length traveled by the photons detected in each layer is proposed. Its accuracy is evaluated by comparing it with the exact time point spread function () for a bilayered medium.
View Article and Find Full Text PDFDesign of soft x-ray high diffraction efficiency and spectral flux Au/Ni bilayer coated laminar-type diffraction grating for objective soft x-ray flat-field spectrograph in a region of 250-550 eV.
Rev Sci Instrum
December 2024
Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Aoba-ku, Sendai, Miyagi 980-8577, Japan.
An objective soft x-ray flat-field spectrograph employing a laminar-type bilayer coated, varied-line-spacing, spherical grating was designed to improve the detection limit and sensitivity of soft x-ray flat-field spectrographs in a region of 250-550 eV. As a design criterion, spectral flux, SF, [Hatano et al., Appl.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!