Related Experiment Video
Updated: Jul 12, 2026
04:33
CRISPR-Cas-mediated Multianalyte Synthetic Urine Biomarker Test for Portable Diagnostics
Published on: December 8, 2023
DNA-based bioanalytical microsystems for handheld device applications
Thomas Ming-Hung Lee1, I-Ming Hsing
1Department of Chemical Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
Analytica Chimica Acta
|August 29, 2007
Summary
This review covers DNA-based bioanalytical microsystems for rapid point-of-care diagnostics and environmental monitoring. It details advancements in miniaturized sample preparation, DNA amplification, and portable detection methods for on-site analysis.
Area of Science:
- Biotechnology
- Analytical Chemistry
- Microsystems Engineering
Background:
- Point-of-care diagnostics and on-site monitoring require rapid, accurate analytical tools.
- DNA-based bioanalytical microsystems offer miniaturized solutions for complex biological analyses.
Purpose of the Study:
- To review and highlight current developments in DNA-based bioanalytical microsystems.
- To discuss miniaturization strategies for sample preparation, DNA amplification, and detection.
- To explore integration challenges for on-chip biological processing modules.
Main Methods:
- Review of recent scientific literature on DNA-based bioanalytical microsystems.
- Detailed delineation of miniaturized biological processing steps.
- Emphasis on portable detection signals and electrochemistry-based methods.
Main Results:
- Significant progress in miniaturizing sample preparation and DNA amplification (polymerase chain reaction).
- Advancements in portable and electrochemistry-based DNA product detection methods.
- Identification of strategies and challenges for integrating multiple processing modules on a single chip.
Conclusions:
- DNA-based bioanalytical microsystems are advancing for point-of-care and on-site applications.
- Miniaturization and integration of on-chip processes are key to developing effective microsystems.
- Portable detection and electrochemical methods show promise for future diagnostic tools.
Related Concept Videos
01:24Automated Microbial Diagnostics
Automated diagnostic analyzers have transformed clinical microbiology by providing rapid and reliable methods for pathogen identification and antibiotic susceptibility testing. Among these systems, the Vitek 2 is widely used because it automates the traditionally labor-intensive processes of microbial identification (ID) and antibiotic susceptibility testing (AST), delivering standardized and timely results that are essential for effective patient care.Microbial Identification with ID CardsThe...
01:17Microbial Biosensors
Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...
02:34DNA Microarrays
Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...