A simple method of fabricating (- (PMN-PT) deep grooves with high aspect ratios using an 800-nm femtosecond laser with chemical-selective etching is demonstrated. The 567-µm-deep grooves with aspect ratios of approximately 35 were obtained with no cracks or thermal affected zone. The morphologies and chemical compositions of grooves were analyzed by a scanning electron microscope with an energy dispersive x-ray spectrometer. The formation mechanism of PMN-PT grooves is attributed to the chemical reactions of hydrochloric acid (HCl) and laser-induced structural changes (LISCs). PMN-PT in LISC became amorphous or mixtures of metal oxide from crystal and all the compounds could react with concentrated HCl and form soluble matter, leaving no precipitation. Furthermore, influences of laser irradiation parameters on depths and aspect ratios of grooves are studied.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/AO.459556 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A minimal vertex model explains how the amnioserosa avoids fluidization during dorsal closure.
Proc Natl Acad Sci U S A
January 2025
Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104.
Dorsal closure is a process that occurs during embryogenesis of . During dorsal closure, the amnioserosa (AS), a one-cell thick epithelial tissue that fills the dorsal opening, shrinks as the lateral epidermis sheets converge and eventually merge. During this process, both shape index and aspect ratio of amnioserosa cells increase markedly.
View Article and Find Full Text PDFPhotoexcited CuO/TiO Heterojunction for Photoelectrochemical Sensors for Nonenzymatic Glucose Detection.
Langmuir
January 2025
Department of Bioinformatics and Medical Engineering, Asia University, Taichung 413305, Taiwan.
Photoelectrochemical sensors have been studied for glucose detection because of their ability to minimize background noise and unwanted reactions. Titanium dioxide (TiO), a highly efficient material in converting light into electricity, cannot utilize visible light. In this regard, we developed a nonenzymatic glucose sensor by using a simple one-step electrospinning technique to combine cupric oxide with TiO to create a heterojunction.
View Article and Find Full Text PDFA novel nomogram based on the patient's clinical data and CT signs to predict poor outcomes in AIS patients.
PeerJ
January 2025
Department of Medical Imaging, Guangzhou Hospital of Integrated Traditional and Western Medicine, Guangzhou, China.
Background: The 2019 American Heart Association/American Stroke Association (AHA/ASA) guidelines strongly advise using non-contrast CT (NCCT) of the head as a mandatory test for all patients with suspected acute ischemic stroke (AIS) due to CT's advantages of affordability and speed of imaging. Therefore, our objective was to combine patient clinical data with head CT signs to create a nomogram to predict poor outcomes in AIS patients.
Methods: A retrospective analysis was conducted on 161 patients with acute ischemic stroke who underwent mechanical thrombectomy at the Guangzhou Hospital of Integrated Traditional and Western Medicine from January 2019 to June 2023.
Twins with at least one with CHD and their immunisation status in direct comparison-are both twins complying with the German immunisation recommendations?
Cardiovasc Diagn Ther
December 2024
Department of Congenital Heart Disease and Pediatric Cardiology, German Heart Center Munich, Technical University of Munich, Munich, Germany.
Background: Patients with congenital heart defects (CHDs) are at higher risk for infectious diseases. This may partly be due to frequent hospital stays and the associated exposure to pathogens. This study aims to provide a comprehensive overview of immunisation coverage among twins in which at least one twin has CHD.
View Article and Find Full Text PDFDental Anomalies and Cranio-Dental Ontogeny in a Captive Wild Boar Population From France.
J Morphol
January 2025
Archéozoologie, Archéobotanique: Sociétés, Pratiques et Environnements (AASPE), UMR CNRS 7209, Muséum National d'Histoire Naturelle, Paris, France.
Dental anomalies are frequent in boars and pigs, and they generally affect the first premolar loci. The prevalence of these dental anomalies was investigated in a large number of populations around the world. These studies mainly focused on the influence of domestication, size, sexual dimorphism or food hardness on these anomalies.
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!