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1.
DNA-CNT Physisorption
Artem Badasyan, predavanje na tuji univerzi

Najdeno v: ključnih besedah
Povzetek najdenega: ...DNA, CNT, zipper model, physisorption...
Ključne besede: DNA, CNT, zipper model, physisorption
Objavljeno: 28.01.2020; Ogledov: 1507; Prenosov: 0
.pdf Polno besedilo (416,43 KB)

2.
Statistical mechanics of DNA-nanotube adsorption
Sh. A. Tonoyan, Davit Khechoyan, Yevgeni S. Mamasakhlisov, Artem Badasyan, 2019, drugi članki ali sestavki

Opis: Attraction between the polycyclic aromatic surface elements of carbon nanotubes (CNT) and the aromatic nucleotides of deoxyribonucleic acid (DNA) leads to reversible adsorption (physisorption) between the two, a phenomenon related to hybridization. We propose a Hamiltonian formulation for the zipper model that accounts for the DNA-CNT interactions and allows for the processing of experimental data, which has awaited an available theory for a decade.
Najdeno v: ključnih besedah
Povzetek najdenega: ...hybridization. We propose a Hamiltonian formulation for the zipper model that accounts for the DNA-CNT interactions...
Ključne besede: DNA-CNT physisorption, zipper model
Objavljeno: 28.01.2020; Ogledov: 1773; Prenosov: 0
.pdf Polno besedilo (515,48 KB)

3.
System size dependence in the Zimm-Bragg model
Artem Badasyan, 2021, izvirni znanstveni članek

Opis: Within the recently developed Hamiltonian formulation of the Zimm and Bragg model we re-evaluate several size dependent approximations of model partition function. Our size analysis is based on the comparison of chain length N with the maximal correlation (persistence) length ξ of helical conformation. For the first time we re-derive the partition function of zipper model by taking the limits of the Zimm–Bragg eigenvalues. The critical consideration of applicability boundaries for the single-sequence (zipper) and the long chain approximations has shown a gap in description for the range of experimentally relevant chain lengths of 5–10 persistence lengths ξ. Correction to the helicity degree expression is reported. For the exact partition function we have additionally found, that: at N/ξ ≈ 10 the transition temperature T m reaches its asymptotic behavior of infinite N; the transition interval ∆T needs about a thousand persistence lengths to saturate at its asymptotic, infinite length value. Obtained results not only contribute to the development of the Zimm–Bragg model, but are also relevant for a wide range of Biotechnologies, including the Biosensing applications.
Najdeno v: ključnih besedah
Povzetek najdenega: ...time we re-derive the partition function of zipper model by taking the limits of the Zimm–Bragg...
Ključne besede: Zimm-Bragg model, helix-coil transition, zipper model
Objavljeno: 17.06.2021; Ogledov: 920; Prenosov: 34
URL Polno besedilo (0,00 KB)
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