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Aptamer-based lateral flow assay on-site biosensors

Biosensors and Bioelectronics, 2021
The lateral flow assay (LFA) is a widely used paper-based on-site biosensor that can detect target analytes and obtain test results in several minutes. Generally, antibodies are utilized as the biorecognition molecules in the LFA. However, antibodies selected using an in vivo process not only may risk killing the animal hosts and causing errors between
Lei Huang   +5 more
openaire   +2 more sources

Biosensors, microfluidics systems and lateral flow assays for circulating microRNA detection: A review

Analytical Biochemistry, 2021
MicroRNAs (miRNAs) are short RNA sequences found in eukaryotic cells and they are involved in several diseases pathogenesis including different types of cancers, metabolic and cardiovascular disorders. Thus, miRNAs circulating in serum, plasma, and other body fluids are employed as biomarkers for diagnostic and prognostic purposes and in assessment of ...
Niloofar, Khandan-Nasab   +5 more
openaire   +2 more sources

An enzyme-amplified lateral flow strip biosensor for visual detection of MicroRNA-224

Talanta, 2016
An enzyme-based dual-labeled nanoprobe is designed to fabricate a sensitive enzyme-amplified lateral flow biosensor for visual detection of mircoRNA-224 (miRNA-224). The recognition DNA probe (detection probe) and signal amplification enzyme (Horseradish peroxidase, HRP) are immobilized on gold nanoparticle (GNPs) surface, simultaneously.
Xuefei Gao, Li-Ping Xu, Yongqiang Wen
exaly   +3 more sources

A lateral flow biosensor for rapid detection of DNA-binding protein c-jun

Biosensors and Bioelectronics, 2011
A lateral flow biosensor based on an immuno-chromatographic assay has been developed for the detection of DNA-binding proteins. The biosensor is composed of four parts: a sample pad, a conjugate pad, a strip of nitrocellulose membrane and an absorbent pad.
Zhiyuan Fang   +2 more
exaly   +3 more sources

Lateral flow biosensors

2016
A typical lateral flow biosensor employs a sandwich detection system and uses tracer(s) to generate detectable signal(s) (Figure 13.1). However, recent advances in nanomaterials offer a wide variety of improvement options, including new detection methodologies, signal transformation and improvements in sensitivity and specificity [4-6]. In this chapter,
Li, Jia, Macdonald, J
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Gold nanorods-based lateral flow biosensors for sensitive detection of nucleic acids

Microchimica Acta, 2021
A gold nanorod (AuNR)-based lateral flow nucleic acid biosensor (LFNAB) is reported for visual detection of DNA with a short test time and high sensitivity. AuNRs with an approximate length of 60 nm were utilized as a colored tag to label the detection DNA probe (Det-DNA).
Qingcai Yu   +6 more
openaire   +2 more sources

Lateral Flow Biosensors for the Detection of Nucleic Acid

2013
The detection of nucleic acid is of central importance for the diagnosis of genetic diseases, infectious agents, and biowarfare agents. Traditional strategies and technologies for nucleic acid detection are time-consuming and labor-intensive. Recently, isothermal strand-displacement reaction-based lateral flow biosensors have attracted a great deal of ...
Lingwen, Zeng   +3 more
openaire   +2 more sources

A lateral flow biosensor for the detection of human pluripotent stem cells

Analytical Biochemistry, 2013
A lateral flow biosensor based on immunoassay has been developed for the detection of human stem cells for the first time. Antibody specific for a human stem cell surface antigen, SSEA-4, is coated onto gold nanoparticles, whereas antibody against another human pluripotent stem cell surface antigen, SSEA-3, is immobilized on the test zone of the NC ...
Wei, Wu   +4 more
openaire   +2 more sources

A fluorescent lateral flow biosensor for the quantitative detection of Vaspin using upconverting nanoparticles

Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2020
Vaspin is a protein present in human serum that can cause type-2 diabetes, obesity, and other cardiovascular diseases. We report fluorescent upconverting nanoparticles (UCNPs)-based lateral flow biosensor for ultrasensitive detection of Vaspin. A pair (primary and secondary) of cognate aptamers was used that has duo binding with Vaspin.
Muhsin Ali   +2 more
exaly   +3 more sources

Convolutional Neural Network for Accurate Analysis of Methamphetamine With Upconversion Lateral Flow Biosensor

IEEE Transactions on NanoBioscience, 2023
Methamphetamine is a powerful stimulant drug, the abuse of which threatens human health and social stability. Rapid and accurate quantification of methamphetamine is essential to inhibit the abuse and prevalence of methamphetamine effectively. In this paper, we present a portable fluorescence reader with upconverting nanoparticle-labeled lateral flow ...
Lei Huang   +5 more
openaire   +2 more sources

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