Results 31 to 40 of about 63 (63)

Echocardiographic Probability of Pulmonary Hypertension, Cardiac Structural Alterations and All‐Cause Mortality in Maintenance Hemodialysis Patients: A Single‐Center Retrospective Cohort Study With Competing Risk Analysis

open access: yesClinical Cardiology, Volume 49, Issue 7, July 2026.
Using a Fine‑Gray competing risk model accounting for renal transplantation, pulmonary hypertension probability, age, and right ventricular diameter independently predicted mortality in maintenance hemodialysis patients. Risk profiles differed by vascular access, supporting individualized cardiovascular risk stratification.
Jingwen Zhou, Zhenhua Yang, Dongmei Huo
wiley   +1 more source

High-Resolution Microfluidic Paper-Based Analytical Devices for Sub-Microliter Sample Analysis

open access: yesMicromachines, 2016
This work demonstrates the fabrication of microfluidic paper-based analytical devices (µPADs) suitable for the analysis of sub-microliter sample volumes.
Keisuke Tenda   +5 more
doaj   +1 more source

Intelligent Tetracycline Sensing With Carbon Quantum Dots: From Photophysical Engineering to Machine Learning‐Enhanced Detection

open access: yesEngineering Reports, Volume 8, Issue 7, July 2026.
Carbon quantum dots engineered through heteroatom doping and surface functionalization enable selective tetracycline sensing via fluorescence modulation. Integration of machine learning with portable sensing platforms enhances discrimination accuracy, matrix tolerance, and real‐world applicability for intelligent antibiotic monitoring in food and ...
Mohamed Abu Shuheil   +8 more
wiley   +1 more source

Determination of Paraquat Using Microfluidic Paper-Based Analytical Device (µPAD) Immobilized with p-Hydroxybenzoic Acid Capped Silver Nanoparticles

open access: yesScience and Technology Indonesia
This study developed a microfluidic paper-based analytical device (µPAD) immobilized with p-hydroxybenzoic acid capped silver nanoparticles (AgNPs-PHB) for the colorimetric detection of paraquat (PQ) in water samples. The synthesized AgNPs-PHB exhibited
Gusrizal Gusrizal   +2 more
doaj   +1 more source

Wearable biofluids colorimetric biosensors

open access: yesFlexMat, Volume 3, Issue 2, Page 299-326, June 2026.
Wearable and flexible colorimetric sensors enable real‐time, non‐invasive detection through visible color changes. Advances in materials and device engineering have driven their development; however, challenges remain in sensitivity, selectivity, and scalable manufacturing.
Zhaoyuan Lyu   +8 more
wiley   +1 more source

MRI T2 Relaxation Time of the Intervertebral Disc: Repeatability, the Effect of Time of Day, and Unloaded Rest

open access: yesJOR SPINE, Volume 9, Issue 2, June 2026.
T2 relaxation time is a commonly used MRI measure of intervertebral disc degeneration. This study investigated the repeatability, as well as the effects of time of day and rest on T2 relaxation time. T2 time repeatability was primarily driven by acquisition factors while time of day and rest changes did not exceed within subject variability. Thus, this
Mackenzie N. Conner   +4 more
wiley   +1 more source

A Paper-Based Assay for the Determination of Total Antioxidant Capacity in Human Serum Samples

open access: yesBiosensors
Determining the total antioxidant capacity (TAC) of biological samples is a valuable approach to measuring health status under oxidative stress conditions, such as infertility and type 2 diabetes.
Michelle T. Tran   +3 more
doaj   +1 more source

Unraveling the Potential of MXenes in Electrochemical Sensing: Mechanistic Insight, Design Principles, and Analytical Applications

open access: yesSmall Science, Volume 6, Issue 5, May 2026.
This review comprehensively examines recent progress in MXene‐based electrochemical sensors for the detection of glucose, hydrogen peroxide, heavy metals, pesticides, nitrites, phenolic pollutants, neurotransmitters, biomarkers, and pharmaceutical compounds.
Hichem Moulahoum   +3 more
wiley   +1 more source

Radiographic Findings in Dogs With Patent Ductus Arteriosus: Left‐to‐Right, Right‐to‐Left, and Bidirectional Shunt

open access: yesVeterinary Radiology &Ultrasound, Volume 67, Issue 3, May 2026.
ABSTRACT Patent ductus arteriosus (PDA) is a common congenital heart defect in dogs, typically presenting as a left‐to‐right (L–R) shunt. This multicenter retrospective study aimed to characterize thoracic radiographic changes in dogs with L–R, right‐to‐left (R–L), and bidirectional (BID) PDA.
Caterina Puccinelli   +6 more
wiley   +1 more source

Evolution of Point‐of‐Care Nucleic Acid Testing: From Amplification Chemistry to Intelligent and Data‐Driven Systems for Public Health

open access: yesAggregate, Volume 7, Issue 4, April 2026.
This review summarizes recent advances in integrated point‐of‐care testing (POCT) systems for public health, encompassing isothermal nucleic acid amplification, CRISPR‐based signal amplification, device integration, and chemometric/artificial intelligence‐assisted data interpretation, with applications in infectious disease surveillance, food and ...
Yan Du, Jiaqi Li, Jinghong Li
wiley   +1 more source

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