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Related Experiment Video

Updated: May 29, 2026

Sequencing of mRNA from Whole Blood using Nanopore Sequencing

Sequencing of mRNA from Whole Blood using Nanopore Sequencing

Published on: June 3, 2019

"DNA-Dressed NAnopore" for complementary sequence detection.

Valentina Mussi¹, Paola Fanzio, Luca Repetto

¹Nanomed Labs, Physics Department, University of Genova, and Nanobiotechnologies, National Institute for Cancer Research (IST), Largo R. Benzi, 10, Genova 16132, Italy. mussi@fisica.unige.it

Biosensors & Bioelectronics

|August 27, 2011

Summary

This summary is machine-generated.

This study introduces DNA-Dressed Nanopores (DNA2) for single-molecule sensing. These novel biosensors can selectively detect complementary DNA sequences, advancing molecular diagnostics.

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Area of Science:

Nanotechnology
Molecular Biology
Biophysics

Background:

Single molecule electrical sensing using nanopores is a rapidly advancing field with significant potential in bioanalytics and diagnostics.
Nanopore sensing relies on detecting conductance changes as molecules pass through a nanometer-sized channel.
Surface functionalization of nanopores allows for tailored molecular recognition and binding capabilities.

Purpose of the Study:

To develop and demonstrate a novel class of selective biosensor devices, termed DNA-Dressed Nanopores (DNA2).
To investigate the capability of DNA2 devices for single-molecule DNA translocation and hybridization experiments.
To assess the selective detection of complementary DNA sequences using functionalized nanopores.

Main Methods:

Fabrication of solid-state nanopores with initially large dimensions.
Resizing and activation of nanopores through functionalization with DNA molecules to create DNA2 devices.
Conducting single-molecule electrical sensing experiments to monitor DNA translocation and hybridization events.

Main Results:

Demonstrated successful DNA translocation and hybridization at the single-molecule level using DNA2 devices.
Showcased the selective detection of complementary DNA target sequences based on molecular affinity.
Confirmed the ability of DNA2 to differentiate between molecules based on their binding interactions with the functionalized surface.

Conclusions:

DNA-Dressed Nanopores (DNA2) represent a novel and effective platform for selective single-molecule DNA detection.
The DNA2 technology holds promise for the development of integrable, parallel devices for mutation analysis and diagnostics.
This approach advances the field of nanopore-based bioanalytical investigations and molecular diagnostics.