Pretražite po imenu i prezimenu autora, mentora, urednika, prevoditelja

Napredna pretraga

Pregled bibliografske jedinice broj: 569797

Atomic force microscopy characterization of silver nanoparticles interactions with marine diatom cells and extracellular polymeric substance


Pletikapić, Galja; Žutić, Vera; Vinković Vrček, Ivana; Svetličić, Vesna
Atomic force microscopy characterization of silver nanoparticles interactions with marine diatom cells and extracellular polymeric substance // Journal of molecular recognition, 25 (2012), 5 (S.I.); 309-317 doi:10.1002/jmr.2177 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 569797 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Atomic force microscopy characterization of silver nanoparticles interactions with marine diatom cells and extracellular polymeric substance

Autori
Pletikapić, Galja ; Žutić, Vera ; Vinković Vrček, Ivana ; Svetličić, Vesna

Izvornik
Journal of molecular recognition (0952-3499) 25 (2012), 5 (S.I.); 309-317

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

Ključne riječi
marine diatom; Cylindrotheca closterium; Cylindrotheca fusiformis; silver nanoparticles; extracellular polymer substance; atomic force microscopy; diatom cell wall

Sažetak
This study highlights the capacity of atomic force microscopy (AFM) for investigating nanoparticle (NP) algal cell interaction with a subnanometer resolution. We designed a set of AFM experiments to characterize NP size, shape, and structure to visualize changes in the cell morphology induced by NPs and to characterize NP interaction with the extracellular polymeric substance (EPS). Samples for AFM imaging were prepared using the same protocol—drop deposition on mica and imaged in air. Here we address the interactions of Ag NPs with ubiquitous, lightly silicified marine diatoms Cylindrotheca fusiformis and Cylindrotheca closterium and their EPS. In natural seawater used throughout this study, the single Ag NPs adopted truncated tetrahedron morphology with particle heights of 10, 20, 30, and 40 nm. This size class Ag NPs penetrates the cell wall through the valve region built of silica NPs embedded in organic matrix. The Ag NPs cause a local damage inside the cell without disintegration of the cell wall. The EPS production has been shown to increase as a feedback response to Ag NP exposure and may contribute to detoxification mechanisms. Imaging EPS at high resolution revealed the incorporation of Ag NPs and their aggregates into the EPS–gel matrix, proving their detoxifying capacity.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

Napomena
Rad je prezentiran na skupu AFM BioMed Conference on Life Sciences and Medicine, održanom 2011., Paris, Francuska



POVEZANOST RADA


Projekti:
098-0982934-2744 - Površinske sile na atomskoj skali u istraživanju mora i nanotehnologiji (Svetličić, Vesna, MZOS ) ( POIROT)

Ustanove:
Institut za medicinska istraživanja i medicinu rada, Zagreb,
Institut "Ruđer Bošković", Zagreb

Poveznice na cjeloviti tekst rada:

doi onlinelibrary.wiley.com

Citiraj ovu publikaciju:

Pletikapić, Galja; Žutić, Vera; Vinković Vrček, Ivana; Svetličić, Vesna
Atomic force microscopy characterization of silver nanoparticles interactions with marine diatom cells and extracellular polymeric substance // Journal of molecular recognition, 25 (2012), 5 (S.I.); 309-317 doi:10.1002/jmr.2177 (međunarodna recenzija, članak, znanstveni)
Pletikapić, G., Žutić, V., Vinković Vrček, I. & Svetličić, V. (2012) Atomic force microscopy characterization of silver nanoparticles interactions with marine diatom cells and extracellular polymeric substance. Journal of molecular recognition, 25 (5 (S.I.)), 309-317 doi:10.1002/jmr.2177.
@article{article, author = {Pletikapi\'{c}, Galja and \v{Z}uti\'{c}, Vera and Vinkovi\'{c} Vr\v{c}ek, Ivana and Svetli\v{c}i\'{c}, Vesna}, year = {2012}, pages = {309-317}, DOI = {10.1002/jmr.2177}, keywords = {marine diatom, Cylindrotheca closterium, Cylindrotheca fusiformis, silver nanoparticles, extracellular polymer substance, atomic force microscopy, diatom cell wall}, journal = {Journal of molecular recognition}, doi = {10.1002/jmr.2177}, volume = {25}, number = {5 (S.I.)}, issn = {0952-3499}, title = {Atomic force microscopy characterization of silver nanoparticles interactions with marine diatom cells and extracellular polymeric substance}, keyword = {marine diatom, Cylindrotheca closterium, Cylindrotheca fusiformis, silver nanoparticles, extracellular polymer substance, atomic force microscopy, diatom cell wall} }
@article{article, author = {Pletikapi\'{c}, Galja and \v{Z}uti\'{c}, Vera and Vinkovi\'{c} Vr\v{c}ek, Ivana and Svetli\v{c}i\'{c}, Vesna}, year = {2012}, pages = {309-317}, DOI = {10.1002/jmr.2177}, keywords = {marine diatom, Cylindrotheca closterium, Cylindrotheca fusiformis, silver nanoparticles, extracellular polymer substance, atomic force microscopy, diatom cell wall}, journal = {Journal of molecular recognition}, doi = {10.1002/jmr.2177}, volume = {25}, number = {5 (S.I.)}, issn = {0952-3499}, title = {Atomic force microscopy characterization of silver nanoparticles interactions with marine diatom cells and extracellular polymeric substance}, keyword = {marine diatom, Cylindrotheca closterium, Cylindrotheca fusiformis, silver nanoparticles, extracellular polymer substance, atomic force microscopy, diatom cell wall} }

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


Citati:





    Contrast
    Increase Font
    Decrease Font
    Dyslexic Font