Enzyme-free biosensor utilizing chitosan-capped ZnS doped by Mn nanomaterials for tetracycline hydrochloride detection.

Tetracycline hydrochloride is a widely used antibiotic for treating bacterial infections, but its misuse poses serious health risks. Therefore, it is crucial to accurately detect tetracycline in complex matrices. In this study, we propose a simple, enzyme-free absorbance biosensor for tetracycline detection based on the optical properties of chitosan-capped ZnS doped with Mn nanomaterials.

Nanocrystalline/Amorphous Tuning of Al-Fe-Nb (Mn) Alloy Powders Produced via High-Energy Ball Milling.

The demand for advanced Al-based alloys with tailored structural and magnetic properties has intensified for applications requiring a high thermal stability and performance under challenging conditions. This study investigated the phase evolution, magnetic properties, thermal stability, and microstructural changes in the Al-based alloys AlFeNb and AlFeNbMn, synthesized via mechanical alloying (MA), using stearic acid as a process control agent. The X-ray diffraction results indicated that AlFeNb achieved a β-phase solid solution with 13-14 nm crystallite sizes after 5 h of milling, reaching an amorphous state after 10 h.

Neuroprotective Effects of Ethanol Extract (EEPG) Against Glutamate Induced Neurotoxicity in HT22 Cells.

Oxidative stress induced by glutamate is a significant contributor to neuronal cell damage and can lead to neurodegenerative diseases such as Alzheimer's, Huntington's, and ischemic brain injury. At the cellular level, oxidative stress increases Ca ion influx and reactive oxygen species (ROS), which activate the MAPK signaling pathway. Additionally, the generation of ROS causes mitochondrial dysfunction, triggering apoptosis by promoting the translocation of AIF to the nucleus from the mitochondria.

In vitro and in silico anti-inflammatory effect of minor constituents from the roots of Buch.-Ham. ex D. Don.

Vietnamese traditional medicine has utilised the roots of Buch.-Ham. ex D.

Dynamic of composite nanobeams resting on an elastic substrate with variable stiffness.

This study introduces a novel approach by combining finite simulation and an enhanced shear deformation theory to analyze the dynamic behavior of multi-layer composite nanobeams supported by an elastic foundation. The calculation formulae are derived from nonlocal theory in order to account for the impact of size effect. An intriguing aspect of this research is the presence of intricate curved profiles in the two material layers of the beam.

Method for weaving basket using eco-friendly materials in industrial production.

The trend of using eco-friendly items as substitutes for products made from plastic and synthetic leather is becoming increasingly popular with the desire to contribute to reducing environmental pollution. There are many biodegradable materials applied to make baskets as alternatives to plastic or leather products such as bamboo, lemongrass, pandan leaves, etc. However, the basket weaving process has been mainly done by manual or semi-automation.

Thinking politically about intersectoral action: Ideas, Interests and Institutions shaping political dimensions of governing during COVID-19.

Our paper examines the political considerations in the intersectoral action that was evident during the SAR-COV-2 virus (COVID-19) pandemic through case studies of political and institutional responses in 16 nations (Australia, Belgium, Brazil, Ethiopia, India, New Zealand, Nigeria, Peru, South Africa, South Korea, Spain, Taiwan, Thailand, Vietnam, UK, and USA). Our qualitative case study approach involved an iterative process of data gathering and interpretation through the three Is (institutions, ideas and interests) lens, which we used to shape our understanding of political and intersectoral factors affecting pandemic responses. The institutional factors examined were: national economic and political context; influence of the global economic order; structural inequities; and public health structures and legislation, including intersectoral action.

Assessment of environmental factors influencing SARS-CoV-2 in Vietnam's surface water across two years of clinical data.

Wastewater-based epidemiology (WBE) is an effective, non-invasive method for monitoring the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) by tracking viral prevalence in water. This study aimed to investigate the presence of SARS-CoV-2 in surface water in Vietnam over two years. One-step quantitative reverse transcription polymerase chain reaction (qRT-PCR) assays were employed to quantify SARS-CoV-2 and its variant-specific mutation sites (G339D/E484A) and pepper mild mottle virus (PMMoV) from a total of 315 samples (105 samples per site) to compare with reported Coronavirus disease 2019 (COVID-19) cases and environmental factors.

Enhanced energy storage performance in BaZrTiOlead-free ferroelectrics near phase transitions.

The present study explores the energy storage properties of BaZrTi1-xOthrough phase-field modeling, focusing on the impact of composition and temperature on energy storage performance. The obtained results reveal a variety of polarization phases and configurations based on Zr compositions and temperatures. A detailed phase diagram for temperature-composition of BaZrTi1-xOis established, closely aligning with experimental measurements.

A Non-Contacted Height Measurement Method in Two-Dimensional Space.

Height is an important health parameter employed across domains, including healthcare, aesthetics, and athletics. Numerous non-contact methods for height measurement exist; however, most are limited to assessing height in an upright posture. This study presents a non-contact approach for measuring human height in 2D space across different postures.

Tobacco and Alcohol Content in Top Vietnamese YouTube Music Videos: Content Analysis.

Background: Seeing portrayals of tobacco and alcohol in music videos (MVs) may reduce perceived risks, increase susceptibility, and lead to the initiation of tobacco and alcohol use among adolescents and young adults. Previous studies have predominantly concentrated on assessing tobacco and alcohol contents in English-language MVs within Western countries. However, many other countries have not only been influenced by the English music market but have also produced music in their native languages, and this content remains underexamined.

Divergence in smoking and drinking trends: Results from age-period-cohort analytical approach.

Background: Smoking has dropped substantially over time while alcohol consumption has increased. Understanding how smoking and drinking relate to age, time-period or birth cohorts may improve public health measures.

Method: The cross-sectional Continuous Household Survey in Northern Ireland provided bi-annual, household-level data on smoking and drinking from 1985 to 2015.

Dimerization of the Aβ under the Influence of the Gold Nanoparticle: A REMD Study.

Advances in Alzheimer's disease (AD) are related to the oligomerization of Amyloid β (Aβ) peptides. Therefore, alteration of the process can prevent AD. We investigated the Aβ dimerization under the effects of gold nanoparticles using temperature replica-exchange molecular dynamics (REMD) simulations.

Morphological analysis of Pd/C nanoparticles using SEM imaging and advanced deep learning.

In this study, we present a comprehensive approach for the morphological analysis of palladium on carbon (Pd/C) nanoparticles utilizing scanning electron microscopy (SEM) imaging and advanced deep learning techniques. A deep learning detection model based on an attention mechanism was implemented to accurately identify and delineate small nanoparticles within unlabeled SEM images. Following detection, a graph-based network was employed to analyze the structural characteristics of the nanoparticles, while density-based spatial clustering of applications with noise was utilized to cluster the detected nanoparticles, identifying meaningful patterns and distributions.

A kinetic and mechanistic study of the self-reaction between two propargyl radicals.

Context: The propargyl radical plays a critical role in various chemical processes, including hydrocarbon combustion, flame synthesis, and interstellar chemistry. Its unique stability arises from the delocalization of π-electrons, allowing it to participate in a wide range of reactions despite being a radical. The self-reaction of propargyl radicals is a fundamental step in synthesizing polycyclic aromatic hydrocarbons.

Quality by design optimization of formulation variables and process parameters for enhanced transdermal delivery of nanosuspension.

This investigation aims to fabricate, characterize, and optimize organogel containing andrographolide nanosuspension to enhance transdermal drug delivery into and across the skin in vitro. We identified the critical material attributes (CMAs) and critical process parameters (CPPs) that impact key characteristics of andrographolide nanosuspension using a systematic quality-by-design approach. We prepared andrographolide nanosuspension using the wet milling technique and evaluated various properties of the formulations.

Single-step hydrothermal synthesis of zinc oxide nanorods for potential use as nano-antibiotics without seeding or bases.

The alarming global rise in antibiotic resistance, driven by the widespread overuse of traditional antibiotics, has created an urgent demand for new antimicrobial solutions. This study presents zinc oxide (ZnO) nanorods as a potential nano-antibiotic agent. ZnO nanorods, with a 2:3 aspect ratio, were synthesized using an efficient one-step hydrothermal method at a low temperature of 100°C, reducing the synthesis time to just 5 hours.

Synthesis and Cytotoxic Activities of Novel Ether Conjugates of Dihydroartemisinin and Zerumbone: Evidenced by Integrating Network Pharmacology and In Vitro Assay.

O-alkylation of the hydroxy compounds, including acetaminophen, starting compounds for the synthesis of the drug, and natural compounds with the bromides of dihydroartemisinin (DHA) and zerumbone, produced twenty novel ether conjugates 15a-j and 16a-j, respectively. Their structures were elucidated by 1D-, 2D-NMR, and HRMS data. Their in vitro cytotoxic activity was screened using three cancer cell lines: HepG2, HeLa, and PC-12.

Single-agent Adavosertib Shows Anticancer Effects Against Colorectal Cancer Cells.

Background/aim: Colorectal cancer (CRC) is the third most common malignancy and the second most common cause of cancer-related deaths worldwide. Adavosertib (AZD1775), a small molecule inhibitor of WEE1 kinase, abrogates G/M cell cycle arrest and induces double-stranded DNA breaks. According to previous findings, adavosertib, in combination with other DNA-damaging agents, causes premature mitosis and cell death in p53-mutated cancer cells mainly via abrogation of the G/M cell cycle checkpoint.

The medicinal plant Peucedanum japonicum Thunberg: A review of traditional use, phytochemistry, and pharmacology.

Peucedanum japonicum (the family Umbelliferae) is a perennial herbaceous plant with various crucial traditional values for coughs, colds, headaches, and inflammatory responses. For drug developments, the current research aims to offer an overview of the previous results in the three main aspects of traditional use, phytochemistry, pharmacological values, and molecular mechanisms regarding this medicinal species. By chromatographic analysis and separation, more than 120 isolated compounds have been obtained.

Osteosarcoma patient with Li-Fraumeni syndrome: the first case report in Vietnam.

Li-Fraumeni syndrome (LFS) is a hereditary disorder characterized by an increased risk of developing multiple early-onset cancers, primarily due to germline mutations. Women and men with this mutation face lifetime cancer risks of 90% and 70%, respectively. This report describes the first documented case of LFS with clinical information in Vietnam involving a 9-year-old child diagnosed with osteosarcoma who had multiple first- and second-degree relatives with cancer.