Articles with "amplification free" as a keyword



Detailed analysis of HTT repeat elements in human blood using targeted amplification‐free long‐read sequencing

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Published in 2018 at "Human Mutation"

DOI: 10.1002/humu.23580

Abstract: Amplification of DNA is required as a mandatory step during library preparation in most targeted sequencing protocols. This can be a critical limitation when targeting regions that are highly repetitive or with extreme guanine–cytosine (GC)… read more here.

Keywords: repeat elements; analysis; repeat; amplification free ... See more keywords
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Amplification-free detection of microRNAs via a rapid microarray-based sandwich assay

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Published in 2017 at "Analytical and Bioanalytical Chemistry"

DOI: 10.1007/s00216-017-0298-6

Abstract: The detection and profiling of microRNAs are of great interest in disease diagnosis and prognosis. In this paper, we present a method for the rapid amplification-free detection of microRNAs from total RNA samples. In a… read more here.

Keywords: detection; sandwich assay; free detection; amplification free ... See more keywords
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Nucleic acid amplification-free detection of DNA and RNA at ultralow concentration.

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Published in 2021 at "Current opinion in biotechnology"

DOI: 10.1016/j.copbio.2021.07.022

Abstract: The broad spectrum of approaches for nucleic acid amplification-free detection of DNA and RNA at single-digit attomolar (10-18 M) concentration and lower is reviewed. These low concentrations correspond roughly to the most clinically desirable detection range… read more here.

Keywords: detection; free detection; amplification free; acid amplification ... See more keywords

Amplification-Free, Single-Microbead-Based Cas12a Assay for One-Step DNA Detection at the Single-Molecule Level.

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Published in 2022 at "Analytical chemistry"

DOI: 10.1021/acs.analchem.2c02283

Abstract: CRISPR/Cas-based systems are highly attractive for developing next-generation diagnostic technologies because of their intrinsic merits such as simplicity, sensitivity, and specificity. However, currently, nucleic acid amplification procedures are still needed to achieve attomolar sensitivity in… read more here.

Keywords: dna; one step; amplification; single microbead ... See more keywords

Glycan-Evocated Metallization for Amplification-Free Electrochemical Detection of Glycoproteins at Low Concentration Levels.

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Published in 2024 at "Analytical chemistry"

DOI: 10.1021/acs.analchem.4c04054

Abstract: Glycoproteins have become the most often screened tumor markers in the in vitro diagnostics. Although a large number of electrochemical methods have been proposed to sensitively detect glycoproteins, most of them involve the aid of… read more here.

Keywords: detection; detection glycoproteins; metallization; glycan evocated ... See more keywords

Photo-Nanozyme-Integrated Photoelectrochemical-Electrochemical Dual-Mode Biosensor: Enabling Amplification-Free Detection of miRNA-133a in Acute Myocardial Infarction.

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Published in 2025 at "Analytical chemistry"

DOI: 10.1021/acs.analchem.4c06761

Abstract: Acute myocardial infarction (AMI) is a leading cause of death and disability worldwide. MicroRNA-133a (miRNA-133a) serves as a valuable biomarker for AMI, offering specificity and stability for an early diagnosis. However, existing miRNA biosensors faced… read more here.

Keywords: detection; myocardial infarction; amplification free; amplification ... See more keywords

CRISPR/Cas12a-Based Dynamic Light Scattering Assay for Nucleic Acid Amplification-Free and Ultrasensitive Detection of Listeria monocytogenes.

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Published in 2025 at "Analytical chemistry"

DOI: 10.1021/acs.analchem.5c04740

Abstract: Ultrasensitive signal transduction systems are essential for developing rapid, robust, and sensitive nucleic acid tests using the amplification-free CRISPR-Cas12a system. In this study, we introduce a novel platform termed CRISPR-DART (dynamic light scattering Assisted Rapid… read more here.

Keywords: nucleic acid; light scattering; crispr cas12a; amplification free ... See more keywords

An Amplification-Free Digital Assay Based on Primer Exchange Reaction-Mediated Botryoidal-Like Fluorescent Polystyrene Dots to Detect Multiple Pathogenic Bacteria.

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Published in 2024 at "ACS nano"

DOI: 10.1021/acsnano.4c09069

Abstract: Multiple and ultrasensitive detection of pathogenic bacteria is critical but remains a challenge. Here, we introduce a digital assay for multiplexed and target DNA amplification-free detection of pathogenic bacteria using botryoidal-like fluorescent polystyrene dots (PS-dots),… read more here.

Keywords: reaction; amplification free; botryoidal like; digital assay ... See more keywords

Amplification-Free, High-Throughput Nanoplasmonic Quantification of Circulating MicroRNAs in Unprocessed Plasma Microsamples for Earlier Pancreatic Cancer Detection.

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Published in 2023 at "ACS sensors"

DOI: 10.1021/acssensors.2c02105

Abstract: Pancreatic ductal adenocarcinoma (PDAC) is a deadly malignancy that is often detected at an advanced stage. Earlier diagnosis of PDAC is key to reducing mortality. Circulating biomarkers such as microRNAs are gaining interest, but existing… read more here.

Keywords: sensitivity; plasma; detection; amplification free ... See more keywords

Ultraspecific and Amplification-Free Quantification of Mutant DNA by Single-Molecule Kinetic Fingerprinting.

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Published in 2018 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.8b06685

Abstract: Conventional techniques for detecting rare DNA sequences require many cycles of PCR amplification for high sensitivity and specificity, potentially introducing significant biases and errors. While amplification-free methods exist, they rarely achieve the ability to detect… read more here.

Keywords: molecule; single molecule; kinetic fingerprinting; dna ... See more keywords

Oligonucleotide-templated lateral flow assays for amplification-free sensing of circulating microRNAs.

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Published in 2019 at "Chemical communications"

DOI: 10.1039/c9cc05607f

Abstract: Herein we demonstrate the first example of oligonucleotide-templated reaction (OTR) performed on paper, using lateral flow to capture and concentrate specific nucleic acid biomarkers on a test line. Quantitative analysis, using a low-cost benchtop fluorescence… read more here.

Keywords: flow assays; assays amplification; amplification free; oligonucleotide templated ... See more keywords