Enzyme-Based Colorimetric Detection of Nucleic Acids Using Peptide Nucleic Acid-Immobilized Microwell Plates

2007 ◽  
Vol 79 (18) ◽  
pp. 7192-7197 ◽  
Author(s):  
Xiaodi Su ◽  
Huey Fang Teh ◽  
Xiaohui Lieu ◽  
Zhiqiang Gao
Keyword(s):  
Nucleic Acid ◽  
Nucleic Acids ◽  
Peptide Nucleic Acid ◽  
Colorimetric Detection

Molecular insights on the dynamic stability of peptide nucleic acid functionalized carbon and boron nitride nanotubes

2021 ◽  
Vol 23 (1) ◽  
pp. 219-228
Author(s):  
Nabanita Saikia ◽  
Mohamed Taha ◽  
Ravindra Pandey
Keyword(s):  
Nucleic Acid ◽  
Boron Nitride ◽  
Nucleic Acids ◽  
Dynamic Stability ◽  
Peptide Nucleic Acid ◽  
Rational Design ◽  
Peptide Nucleic Acids ◽  
Boron Nitride Nanotubes ◽  
Molecular Hybrids ◽  
Single Wall Nanotubes

The rational design of self-assembled nanobio-molecular hybrids of peptide nucleic acids with single-wall nanotubes rely on understanding how biomolecules recognize and mediate intermolecular interactions with the nanomaterial's surface.

scholarly journals Peptide Nucleic Acids: Applications in Biomedical Sciences

Molecules ◽  
2020 ◽  
Vol 25 (15) ◽  
pp. 3317
Author(s):  
Eylon Yavin
Keyword(s):  
Nucleic Acid ◽  
Nucleic Acids ◽  
Peptide Nucleic Acid ◽  
Peptide Nucleic Acids ◽  
Biomedical Sciences

The DNA mimic, PNA (peptide nucleic acid), has been with us now for almost 3 decades [...]

scholarly journals Peptide Nucleic Acid–Based In Situ Hybridization Assay for Detection of Parvovirus B19 Nucleic Acids

2006 ◽  
Vol 52 (6) ◽  
pp. 973-978 ◽  
Author(s):  
Francesca Bonvicini ◽  
Claudia Filippone ◽  
Elisabetta Manaresi ◽  
Giovanna Angela Gentilomi ◽  
Marialuisa Zerbini ◽  
...  
Keyword(s):  
In Situ Hybridization ◽  
Nucleic Acid ◽  
Nucleic Acids ◽  
Peptide Nucleic Acid ◽  
Parvovirus B19 ◽  
Hybridization Assay ◽  
Pcr Assay ◽  
Clinical Specimens ◽  
Rna Molecules

Abstract Background: Peptide nucleic acid (PNA) molecules are known to bind complementary nucleic acid sequences with a much stronger affinity and with more stable binding than DNA or RNA molecules. We chose parvovirus B19, which is diagnosed by detection of nucleic acids by in situ hybridization assay (ISH) and/or PCR, as an experimental model to develop an ISH assay that uses biotinylated PNA probes to detect viral genome in clinical specimens. Methods: We first optimized the PNA-ISH assay on B19-infected and mock-infected UT-7/EpoS1 cells and then tested the assay on archival B19 specimens and on consecutive specimens. All data were compared with data obtained with a standardized DNA-based ISH assay and confirmed by a PCR-ELISA. Results: PNA-ISH detected B19 genome in a higher number of B19-infected UT-7/EpoS1 cells and with a more defined localization of viral nucleic acids than the standardized DNA-ISH assay. Moreover, PNA-ISH was able to detect B19 genome in all positive archival samples, whereas DNA-ISH failed in 5 samples. PNA-ISH detected more positive samples than DNA-ISH when consecutive specimens were analyzed, and a close agreement was found with PCR-ELISA results. Conclusions: The PNA-ISH assay had sensitivity and specificity comparable to a PCR assay and was more practical and quicker to perform than standard hybridization assays. The assay may be a suitable diagnostic test for the detection of viral nucleic acids in clinical specimens.

Cyclopentane peptide nucleic acid : Gold nanoparticle conjugates for the detection of nucleic acids in a microfluidic format

Biopolymers ◽  
2021 ◽  
Author(s):  
Harsha Amarasekara ◽  
Kaylyn M. Oshaben ◽  
Kendra B. Jeans ◽  
Paniz Rezvan Sangsari ◽  
Nicole Y. Morgan ◽  
...  
Keyword(s):  
Nucleic Acid ◽  
Nucleic Acids ◽  
Gold Nanoparticle ◽  
Peptide Nucleic Acid
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