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A Streamlined Approach to Anticounterfeiting Technologies: Patterned AAO Membranes Based on Photonic Crystal Effects with Tunable Color Shifts and pH Responsiveness.
Small
January 2025
Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, 300093, Taiwan.
Anticounterfeiting technologies have become increasingly crucial due to the growing issue of counterfeit goods, particularly in high-value industries. Traditional methods such as barcodes and holograms are prone to replication, prompting the need for advanced, cost-effective, and efficient solutions. In this work, a practical application of anodic aluminum oxide (AAO) membranes are presented for anticounterfeiting, which addresses the challenges of high production costs and complex fabrication processes.
View Article and Find Full Text PDFAutomatic Optical Path Alignment Method for Optical Biological Microscope.
Sensors (Basel)
December 2024
Guangxi Key Laboratory of Machine Vision and Intelligent Control, Wuzhou University, Wuzhou 543000, China.
A high-quality optical path alignment is essential for achieving superior image quality in optical biological microscope (OBM) systems. The traditional automatic alignment methods for OBMs rely heavily on complex masker-detection techniques. This paper introduces an innovative, image-sensor-based optical path alignment approach designed for low-power objective (specifically 4×) automatic OBMs.
View Article and Find Full Text PDFInfection with Toxoplasma gondii triggers coagulation at the blood-brain barrier and a reduction in cerebral blood flow.
J Neuroinflammation
January 2025
Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, 92697, USA.
Background: Immunothrombosis is the process by which the coagulation cascade interacts with the innate immune system to control infection. However, the formation of clots within the brain vasculature can be detrimental to the host. Recent work has demonstrated that Toxoplasma gondii infects and lyses central nervous system (CNS) endothelial cells that form the blood-brain barrier (BBB).
View Article and Find Full Text PDFPrinted Twisted Thin Films with Near-Infrared Bandgaps and Tailored Chiroptical Properties.
ACS Appl Opt Mater
December 2024
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States.
Article Synopsis
- The study presents a method for creating twisted helical cellulose nanocrystal films using 3D printing, achieving unique optical properties.
- The films exhibit high transparency and dual circular polarization, with different types depending on the printing orientation.
- These materials have potential applications in photonics, thermal management, and energy efficiency due to their ability to manipulate light in the near-infrared region.
Exercise electrocardiogram combined with cadmium zinc tellurium (CZT) cardiac-dedicated single photon emission computed tomography (SPECT) predicts coronary artery disease.
Clin Radiol
December 2024
Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China. Electronic address:
Aim: Coronary artery disease (CAD) is a primary cause of mortality, prompting ongoing research into noninvasive diagnostic modalities. This study aimed to evaluate the diagnostic efficacy of exercise electrocardiography testing (EET) combined with cadmium zinc tellurium cardiac-dedicated single photon emission computed tomography (CZT-SPECT) imaging for CAD.
Materials And Methods: CZT-SPECT and EET were examined in 124 patients aged 20-85 years, followed by coronary angiography to evaluate the sensitivity, specificity, positive predictive value, and negative predictive value of EET/CZT-SPECT alone and in combination.
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