Results 41 to 50 of about 205,916 (160)

Peptide Nucleic Acid

open access: yesActa Informatica Medica, 2011
Peptide nucleic acid (PNA) is a nucleic acid analog in which the sugar phosphate backbone of natural nucleic acid has been replaced by a synthetic peptide backbone usually formed from N-(2-amino-ethyl)-glycine units. It is chemically stable and resistant to hydrolytic enzyme cleavage and thus not expected to be degraded inside a living cell.
Chinmoy Mishra, Lipismita Samal
openaire   +1 more source

Synthesis of PNA Oligoether Conjugates

open access: yesMolecules, 2014
Several different approaches have been explored for conjugation of oligoethers to PNA with internally or N-terminal placed diaminopropionic acid residues.
Alice Ghidini   +3 more
doaj   +1 more source

PCR-Independent Detection of Bacterial Species-Specific 16S rRNA at 10 fM by a Pore-Blockage Sensor

open access: yesBiosensors, 2016
A PCR-free, optics-free device is used for the detection of Escherichia coli (E. coli) 16S rRNA at 10 fM, which corresponds to ~100–1000 colony forming units/mL (CFU/mL) depending on cellular rRNA levels.
Leyla Esfandiari   +7 more
doaj   +1 more source

Convenient and Scalable Synthesis of Fmoc-Protected Peptide Nucleic Acid Backbone

open access: yesJournal of Nucleic Acids, 2012
The peptide nucleic acid backbone Fmoc-AEG-OBn has been synthesized via a scalable and cost-effective route. Ethylenediamine is mono-Boc protected, then alkylated with benzyl bromoacetate. The Boc group is removed and replaced with an Fmoc group.
Trevor A. Feagin   +2 more
doaj   +1 more source

Comparative Incorporation of PNA into DNA Nanostructures

open access: yesMolecules, 2015
DNA has shown great promise as a building material for self-assembling nanoscale structures. To further develop the potential of this technology, more methods are needed for functionalizing DNA-based nanostructures to increase their chemical diversity ...
Ronnie O. Pedersen   +3 more
doaj   +1 more source

Aptamers and Their Significant Role in Cancer Therapy and Diagnosis

open access: yesBiomedicines, 2015
Aptamers are nucleic acid/peptide molecules that can be generated by a sophisticated, well-established technique known as Systematic Evolution of Ligands by EXponential enrichment (SELEX).
Joy Sebastian Prakash   +1 more
doaj   +1 more source

A Novel Peptide Nucleic Acid against the Cytidine Monophosphate Kinase of S. aureus Inhibits Staphylococcal Infection In Vivo

open access: yesMolecular Therapy: Nucleic Acids, 2019
Here, we report a novel bactericidal peptide nucleic acid (PNA) that can induce the antisense effect on the cytidine monophosphate kinase (Cmk) of Staphylococcus aureus, a putative essential component for bacterial species.
Hyung Tae Lee   +3 more
doaj   +1 more source

Intertwining DNA-RNA nanocapsules loaded with tumor neoantigens as synergistic nanovaccines for cancer immunotherapy

open access: yesNature Communications, 2017
Nucleic acid nanomedicines are promising for cancer drug delivery. Here, the authors show using a mouse model the tumor immunotherapeutic efficacy of nanovaccines based on intertwining DNA-RNA nanocapsules loaded with DNA CpG, Stat3-silencing short ...
Guizhi Zhu   +13 more
doaj   +1 more source

Mechanically rigid supramolecular assemblies formed from an Fmoc-guanine conjugated peptide nucleic acid

open access: yesNature Communications, 2019
DNA is an attractive nanomaterial, yet limited compared to polyamides due to low stability and mechanical issues. Here, the authors combine polyamide and DNA characteristics to form mechanically rigid self-assembled peptide nucleic acid based materials ...
Vasantha Basavalingappa   +13 more
doaj   +1 more source

A Brief Review of Aptamer-Based Biosensors in Recent Years

open access: yesBiosensors
Aptamers have recently become novel probes for biosensors because of their good biocompatibility, strong specificity, and high sensitivity. Biosensors based on peptides or nucleic acid aptamers are used in implantable and wearable devices owing to their ...
Wenjing Wang   +8 more
doaj   +1 more source

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