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Pregled bibliografske jedinice broj: 254902

Screening and Fundamental Length Scales in Semidilute Na-DNA Aqueous Solutions


Tomić, Silvia; Vuletić, Tomislav; Dolanski Babić, Sanja; Krča, Sanja; Ivanković, Dušica; Griparić, Lorena; Podgornik, Rudi
Screening and Fundamental Length Scales in Semidilute Na-DNA Aqueous Solutions // Physical Review Letters, 97 (2006), 098303-1 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 254902 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Screening and Fundamental Length Scales in Semidilute Na-DNA Aqueous Solutions

Autori
Tomić, Silvia ; Vuletić, Tomislav ; Dolanski Babić, Sanja ; Krča, Sanja ; Ivanković, Dušica ; Griparić, Lorena ; Podgornik, Rudi

Izvornik
Physical Review Letters (0031-9007) 97 (2006); 098303-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
DNA dielectric relaxation; fundamental length scales; screening

Sažetak
The fundamental length scales in semidilute Na-DNA aqueous solutions have been investigated by dielectric spectroscopy. The low- and the high-frequency relaxation modes are studied in detail. The length scale of the high-frequency relaxation mode at high DNA concentrations can be identified with the de Gennes– Pfeuty– Dobrynin correlation length of polyelectrolytes in semidilute solution, whereas at low DNA concentrations and in the low added salt limit the length scale shows an unusual exponent reminiscent of semidilute polyelectrolyte chains with hydrophobic backbone. The length scale of the low-frequency relaxation mode corresponds to a Gaussian chain composed of correlation blobs in the low added salt limit, and to the Odijk-Skolnick-Fixman value of the single chain persistence length in the high added salt limit.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija, Biologija



POVEZANOST RADA


Projekti:
0098135
0098130
0035015

Ustanove:
Institut za fiziku, Zagreb,
Institut "Ruđer Bošković", Zagreb

Citiraj ovu publikaciju

Tomić, Silvia; Vuletić, Tomislav; Dolanski Babić, Sanja; Krča, Sanja; Ivanković, Dušica; Griparić, Lorena; Podgornik, Rudi
Screening and Fundamental Length Scales in Semidilute Na-DNA Aqueous Solutions // Physical Review Letters, 97 (2006), 098303-1 (međunarodna recenzija, članak, znanstveni)
Tomić, S., Vuletić, T., Dolanski Babić, S., Krča, S., Ivanković, D., Griparić, L. & Podgornik, R. (2006) Screening and Fundamental Length Scales in Semidilute Na-DNA Aqueous Solutions. Physical Review Letters, 97, 098303-1.
@article{article, year = {2006}, pages = {098303-1-098303-4}, keywords = {DNA dielectric relaxation, fundamental length scales, screening}, journal = {Physical Review Letters}, volume = {97}, issn = {0031-9007}, title = {Screening and Fundamental Length Scales in Semidilute Na-DNA Aqueous Solutions}, keyword = {DNA dielectric relaxation, fundamental length scales, screening} }
@article{article, year = {2006}, pages = {098303-1-098303-4}, keywords = {DNA dielectric relaxation, fundamental length scales, screening}, journal = {Physical Review Letters}, volume = {97}, issn = {0031-9007}, title = {Screening and Fundamental Length Scales in Semidilute Na-DNA Aqueous Solutions}, keyword = {DNA dielectric relaxation, fundamental length scales, screening} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE





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