Results 81 to 90 of about 477,501 (260)

Ultrasensitive Detection of Porcine Epidemic Diarrhea Virus Infections Using Multivalent DNA Nanostructure‐Enabled Lateral Flow Assay

open access: yesAdvanced Healthcare Materials, EarlyView.
A multivalent DNA nanostructure‐enabled lateral flow assay was developed for rapid, ultrasensitive detection of porcine epidemic diarrhea virus (PEDV) nucleocapsid protein. Designer net‐shaped DNA nanostructures (DNA‐Net) presenting PEDV‐specific aptamers achieved ~1000‐fold enhanced binding, enabling detection of viral copies with Ct ≤ 37.42 within 10
Saurabh Umrao   +9 more
wiley   +1 more source

Animal models for SARS‐CoV‐2 infection and pathology

open access: yesMedComm, 2021
Severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) is the etiology of coronavirus disease 2019 (COVID‐19) pandemic. Current variants including Alpha, Beta, Gamma, Delta, and Lambda increase the capacity of infection and transmission of SARS‐CoV‐
Zhenfei Bi   +4 more
doaj   +1 more source

Electrically Readable Lateral Flow Assay Using Organic Transistors for Diagnostic Applications

open access: yesAdvanced Materials, EarlyView.
Electrolyte‐gated organic field‐effect transistors (EGOFETs) are integrated with lateral flow (LF) paper fluidics to create a reusable, portable, and low‐cost point‐of‐care (PoC) diagnostic test. The devices are validated for Human Immunoglobulin G detection, achieving high sensitivity (0.1 fm), selectivity, and reproducibility with rapid results in 20–
María Jesús Ortiz‐Aguayo   +4 more
wiley   +1 more source

Infección por SARS-COV-2 en trabajadores de la salud: análisis de riesgo epidemiológico en una institución de alta complejidad de Bogotá, Colombia, 2020

open access: yesInfectio, 2022
Objective: To determine the incidence of SARS-CoV-2 infection and its association with sociodemographic, clinical, and occupational characteristics in health workers (HCWs) in the COVID-19 risk area.Material and method: Longitudinal analytical study in a
Milcíades Ibáñez-Pinilla
doaj   +1 more source

Adult‐onset Still's disease after SARS‐Cov‐2 infection

open access: yesClinical Case Reports, 2023
Adult‐onset Still's disease (AOSD) is an uncommon inflammatory disorder. AOSD and SARS‐Cov‐2 infection share clinical and laboratory features, including systemic inflammation.
Tayssir Ben Achour   +8 more
doaj   +1 more source

On the SARS-CoV-2 Variants

open access: yesInfectious Disease Reports
The evolutionary dynamics of viruses, particularly exemplified by SARS-CoV-2 during the ongoing COVID-19 pandemic, underscore the intricate interplay between genetics, host adaptation, and viral spread. This paper delves into the genetic evolution of SARS-CoV-2, emphasizing the implications of viral variants on global health.
Fabio Scarpa   +3 more
openaire   +3 more sources

Viral Infection‐Inspired Autonomous Detection of Fusion‐Competent Viruses for Screening and Environmental Surveillance

open access: yesAdvanced Materials, EarlyView.
Inspired by viral entry mechanisms, the FUSION assay enables autonomous detection of respiratory viruses via membrane fusion–triggered CRISPR‐Cas13a activation. VEACON selectively fuses with fusion‐competent viruses, triggering fluorescence within confined vesicles.
Jae Chul Park   +15 more
wiley   +1 more source

Intimate Interaction Between Nucleic Acid and Conjugated Polymers in Organic Electrochemical Transistors Enables Ultrasensitive Biomarker Detection

open access: yesAdvanced Materials, EarlyView.
The intimate interaction between negatively charged RNA molecules and conjugated polymers in organic electrochemical transistors (OECTs) in aqueous electrolytes is investigated. It demonstrates that RNA binding reduces the volumetric capacitance of the polymer channel, enabling the development of an ultrasensitive biosensing platform capable of ...
Hong Liu   +7 more
wiley   +1 more source

SARS-CoV-2 reinfection

open access: yesMedicina Intensiva (English Edition), 2021
Romera, I.   +5 more
openaire   +3 more sources

Sensitive and Spatially‐Resolved Electrochemiluminescence via Micropatterning

open access: yesAdvanced Materials Interfaces, EarlyView.
The use of a simple silica nanoparticle surface coating and patterning process can transform ordinary gold electrodes into multiplexed ECL sensing electrodes. Through spatially confined droplet formation and local ECL emission, it is possible to perform multiple analyses simultaneously from individual locations as well as intensify the ECL signal by as
Yuliang Shao   +12 more
wiley   +1 more source

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