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Related Concept Videos

DNA Isolation01:24

DNA Isolation

DNA isolation protocols can be fast and straightforward or complex and time-consuming depending on the type and quality of DNA required for further processing. For example, plasmid DNA extraction is a bit more complicated than genomic DNA extraction because of the need for an appropriate lysis method to separate plasmid DNA from gDNA during isolation. However, for specific applications, such as long-range DNA sequencing that require a good yield of high- quality DNA samples, we need to follow...

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Detection of Bacteria Using Fluorogenic DNAzymes
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In-vitro Clinical Diagnostics using RNA-Cleaving DNAzymes.

Monsur Ali1, Parameswaran Nair2, Alfredo Capretta1

  • 1Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4K1, Canada.

Chembiochem : a European Journal of Chemical Biology
|April 4, 2024
PubMed
Summary
This summary is machine-generated.

RNA-cleaving DNAzymes (RCDs) are versatile biosensors for detecting clinical targets like bacteria and cancer. Recent studies show promising RCD applications in patient samples, paving the way for commercial diagnostic tests.

Keywords:
DNAzymeIn vitro diagnosticsbiosensorcancer screeningpathogen detection

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Area of Science:

  • Biomedical Engineering
  • Molecular Biology
  • Analytical Chemistry

Background:

  • RNA-cleaving DNAzymes (RCDs) have evolved from metal ion detection to targeting clinically relevant biomarkers.
  • Over the last five years, RCD-based biosensors have been increasingly validated in biological matrices and patient samples.

Purpose of the Study:

  • To provide an overview of RCD generation methods and properties for in vitro testing.
  • To present examples of RCD-based assays using biological samples and patient specimens.
  • To summarize prospects, challenges, and future directions for RCDs in in vitro diagnostics.

Main Methods:

  • Review of literature on RCD generation and characterization.
  • Analysis of RCD-based biosensor performance in various biological matrices.
  • Evaluation of RCD applications in clinical sample testing.

Main Results:

  • Numerous RCDs have been developed for diverse clinical targets including bacteria, cancer cells, and protein biomarkers.
  • RCD biosensors demonstrate effective performance in complex biological samples like blood, serum, and saliva.
  • Validation in patient samples marks a critical step towards commercialization.

Conclusions:

  • RCDs offer a promising platform for developing sensitive and specific in vitro diagnostic tests.
  • Further research is needed to address challenges in assay performance and standardization for clinical use.
  • The field is advancing towards the development of novel RCD-based diagnostic tools for various diseases.