Nonfunctionalized PNAs as Beacons for Nucleic Acid Detection in a Nanopore System.
ACS Sens
; 4(6): 1502-1507, 2019 06 28.
Article
in En
| MEDLINE
| ID: mdl-31119934
ABSTRACT
In this work, single-channel current recordings were used to selectively detect individual ssDNA strands in the vestibule of the α-hemolysin (α-HL) protein nanopore. The sensing mechanism was based on the detection of the intrinsic topological change of target ssDNA molecules after the hybridization with complementary PNA fragments. The readily distinguishable current signatures of PNA-DNA duplexes reversible association with the α-HL's vestibule, in terms of blockade amplitudes and kinetic features, allows specific detection of nucleic acid hybridization.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Bacterial Toxins
/
DNA, Single-Stranded
/
Peptide Nucleic Acids
/
Nanopores
/
Hemolysin Proteins
Type of study:
Diagnostic_studies
Language:
En
Journal:
ACS Sens
Year:
2019
Document type:
Article