Results 61 to 70 of about 120,566 (116)
An ultrasensitive photoelectrochemical nucleic acid biosensor [PDF]
, 2005 A simple and ultrasensitive procedure for non-labeling detection of nucleic acids is described in this study. It is based on the photoelectrochemical detection of target nucleic acids by forming a nucleic acid/photoreporter adduct layer on an ITO ...
Gao, Zhiqiang, Tansil, Natalia C.
core +3 more sources
MicroorganismsThe WHO has classified Helicobacter pylori as a group 1 carcinogen for stomach cancer since early 1994. However, despite the high prevalence of Helicobacter pylori infection, only about 3% of infected people eventually develop gastric cancer.Biomolecular
Kyung Lee +6 more
doaj +1 more source
Salivary Cortisol Determination on Smartphone-Based Differential Pulse Voltammetry System
Sensors, 2020 Cortisol is commonly used as a significant biomarker of psychological or physical stress. With the accelerated pace of life, non-invasive cortisol detection at the point of care (POC) is in high demand for personal health monitoring.
Jingjing Liu +10 more
doaj +1 more source
BiosensorsThe activated carbon from marigold flowers (MG) was used to make an unlabeled electrochemical immunosensor to determine prostate cancer. MG was synthesized by hydrothermal carbonization and pyrolysis.
Suparat Cotchim +4 more
doaj +1 more source
Discrimination of milks with a multisensor system based on layer-by-layer films [PDF]
, 2018 Producción CientíficaA nanostructured electrochemical bi-sensor system for the analysis of milks has been developed using the layer-by-layer technique.
García Cabezón, Ana Cristina +3 more
core +1 more source
Scientific ReportsFoodborne illness is caused by the consumption of bacterial contaminated food and beverages. Diagnostic intervention in the form of point-of-care testing (PoCT) device is required for rapid detection bacteria.
Subasini Jayakanthan +2 more
doaj +1 more source
Biosensors, 2022 Lung cancer has been studied for decades because of its high morbidity and high mortality. Traditional methods involving bronchoscopy and needle biopsy are invasive and expensive, which makes patients suffer more risks and costs. Various noninvasive lung
Qiwen Yu +11 more
doaj +1 more source
A biosensor based on magnetoelastic waves for detection of antibodies in human plasma for COVID-19 serodiagnosis [PDF]
Biosensors and Bioelectronics (2024) 116456The study proposes a new efficient wireless biosensor based on magnetoelastic waves for the detection of antibodies in human plasma, aiming at the serological diagnosis of COVID-19. The biosensor was functionalized with the N antigen - nucleocapsid phosphoprotein of the SARS-CoV-2 virus. Validation analyses, by sodium dodecyl-sulfate polyacrylamide gel
arxiv +1 more source
Sensitivity-Tunable Terahertz Liquid/Gas Biosensor Based on Surface Plasmon Resonance with Dirac Semimetal [PDF]
arXiv, 2023 In this paper, we study the sensitivity-tunable Terahertz (THz) liquid/gas biosensor in a coupling prism-three-dimensional Dirac semimetal (3D DSM) multilayer structure. The high sensitivity of the biosensor originates from the sharp reflected peak caused by surface plasmon resonance (SPR) mode. This structure achieves the tunability of sensitivity due
arxiv
Magnetoresistive biosensors with on-chip pulsed excitation and magnetic correlated double sampling. [PDF]
, 2018 Giant magnetoresistive (GMR) sensors have been shown to be among the most sensitive biosensors reported. While high-density and scalable sensor arrays are desirable for achieving multiplex detection, scalability remains challenging because of long data ...
Bechstein, Daniel JB +7 more
core +2 more sources