Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Microbial Biosensors01:17

Microbial 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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Multifunctional 3D-Printed Alginate Emulgel Patches Incorporating Plant Extracts for Potential Burn Wound Applications.

Gels (Basel, Switzerland)·2026
Same author

Controlled polymerization of methyl acrylate in the presence of copper MOF (Basolite<sup>®</sup>C300): strategy and characterization.

Scientific reports·2026
Same author

Influence of Rapid Thermal Annealing (RTA) on the Properties of Indium Oxide Nanostructures.

Nanomaterials (Basel, Switzerland)·2026
Same author

Design of Experiments-assisted Micellar Electrokinetic Chromatography Separation of Phosphodiesterase-5 Inhibitors: Application to Sildenafil and Tadalafil.

Journal of separation science·2026
Same author

Harnessing Eugenol for Sustainability: Synthesis and Characterization of Biobased Epoxy Thermosets.

ACS omega·2026
Same author

Contrast-Associated Acute Kidney Injury After Thrombectomy for Ischemic Stroke: Prognostic Impact and CAN-REST Predictive Score.

Neurology·2026

Related Experiment Video

Updated: Jun 13, 2026

Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System
06:58

Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System

Published on: June 13, 2010

10.1K

Biosensor Based on pSi-SU-8-GQD Heterostructures for Enhanced Viral Detection by Dual Signal Amplification Strategy.

Melania A Popescu1, Larisa I Gogianu1,2, Iuliana Mihalache1

  • 1National Institute for Research and Development in Microtechnologies, IMT Bucharest, 126A Erou Iancu Nicolae Street, Bucharest 077190, Romania.

ACS Omega
|February 23, 2026
PubMed
Summary

This study optimized DNA microarray detection using nanoporous silicon substrates and graphene quantum dots. Asymmetric PCR labeling significantly improved signal intensity for enhanced diagnostics and personalized medicine applications.

More Related Videos

Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors
07:22

Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors

Published on: November 20, 2013

17.7K
Ultrasensitive Detection of Biomarkers by Using a Molecular Imprinting Based Capacitive Biosensor
08:22

Ultrasensitive Detection of Biomarkers by Using a Molecular Imprinting Based Capacitive Biosensor

Published on: February 16, 2018

12.7K

Related Experiment Videos

Last Updated: Jun 13, 2026

Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System
06:58

Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System

Published on: June 13, 2010

10.1K
Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors
07:22

Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors

Published on: November 20, 2013

17.7K
Ultrasensitive Detection of Biomarkers by Using a Molecular Imprinting Based Capacitive Biosensor
08:22

Ultrasensitive Detection of Biomarkers by Using a Molecular Imprinting Based Capacitive Biosensor

Published on: February 16, 2018

12.7K

Area of Science:

  • Biosensor technology
  • Nanomaterials science
  • Molecular diagnostics

Background:

  • DNA microarray technology requires optimized substrates and labeling for improved detection.
  • Current methods face limitations in signal amplification and specificity.

Purpose of the Study:

  • To develop an enhanced biosensor platform for DNA microarrays.
  • To compare DNA labeling strategies for improved fluorescent signal detection.
  • To investigate the role of nanostructured materials in signal amplification.

Main Methods:

  • Fabrication of nanoporous silicon (pSi) substrates coated with SU-8 polymer.
  • Decoration of the polymer coating with graphene quantum dots (GQDs).
  • Comparison of two single-stranded DNA labeling methods: Lambda exonuclease digestion and asymmetric PCR (aPCR).

Main Results:

  • Optimized pSi biochips (7 nm pores, 700-750 nm SU-8) showed a 52% increase in signal-to-noise ratio.
  • The aPCR labeling method yielded significantly higher signal intensity (mean 4.06, SD 0.16).
  • GQD decoration of SU-8 coating amplified signal intensity by an additional 11%.

Conclusions:

  • Optimized substrate properties and DNA labeling are crucial for enhanced microarray performance.
  • Nanostructured heterostructures, like GQD-decorated pSi, offer significant signal amplification.
  • The developed platform has potential applications in personalized medicine and diagnostics.