PuSH - Publikationsserver des Helmholtz Zentrums München

Export: TXT Text RIS Endnote (RIS) BIB BibTeX
Kreyling, W.G. ; Hirn, S. ; Möller, W. ; Schleh, C. ; Wenk, A. ; Celik, G. ; Lipka, J. ; Schäffler, M. ; Haberl, N. ; Johnston, B.D. ; Sperling, R.A.* ; Schmid, G.* ; Simon, U.* ; Parak, W.J.* ; Semmler-Behnke, M.

Air-blood barrier translocation of tracheally instilled gold nanoparticles inversely depends on particle size.

ACS Nano 8, 222-233 (2014)
DOI PMC
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Gold nanoparticles (AuNP) provide many opportunities in imaging, diagnostics, and therapy in nanomedicine. For the assessment of AuNP biokinetics, we intratracheally instilled into rats a suite of 198Au-radio-labeled monodisperse, well-characterized, negatively charged AuNP of five different sizes (1.4, 2.8, 5, 18, 80, 200 nm) and 2.8 nm AuNP with positive surface charges. At 1, 3, and 24 h, the biodistribution of the AuNP was quantitatively measured by gamma-spectrometry to be used for comprehensive risk assessment. Our study shows that as AuNP get smaller, they are more likely to cross the air-blood barrier (ABB) depending strongly on the inverse diameter d-1 of their gold core, i.e., their specific surface area (SSA). So, 1.4 nm AuNP (highest SSA) translocated most, while 80 nm AuNP (lowest SSA) translocated least, but 200 nm particles did not follow the d -1 relation translocating significantly higher than 80 nm AuNP. However, relative to the AuNP that had crossed the ABB, their retention in most of the secondary organs and tissues was SSA-independent. Only renal filtration, retention in blood, and excretion via urine further declined with d-1 of AuNP core. Translocation of 5, 18, and 80 nm AuNP is virtually complete after 1 h, while 1.4 nm AuNP continue to translocate until 3 h. Translocation of negatively charged 2.8 nm AuNP was significantly higher than for positively charged 2.8 nm AuNP. Our study shows that translocation across the ABB and accumulation and retention in secondary organs and tissues are two distinct processes, both depending specifically on particle characteristics such as SSA and surface charge.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Scopus
Cited By
Altmetric
12.033
2.769
159
175
Tags
Anmerkungen
Besondere Publikation
Auf Hompepage verbergern

Zusatzinfos bearbeiten
Eigene Tags bearbeiten
Privat
Eigene Anmerkung bearbeiten
Privat
Auf Publikationslisten für
Homepage nicht anzeigen
Als besondere Publikation
markieren
Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter 198au Radiolabel ; Female Wystar-kyoto Rat ; Gold Nanoparticles ; In Vivo Biodistribution ; Intratracheal Instillation ; Nanoparticle Surface Charge ; Specific Surface Area ; Translocation; Cellular Uptake; Rat Lung; Intratracheal Instillation; Glomerular-permeability; Drug-delivery; Biodistribution; Toxicity; Clearance; Internalization; Nanomedicine
Sprache englisch
Veröffentlichungsjahr 2014
HGF-Berichtsjahr 2014
ISSN (print) / ISBN 1936-0851
e-ISSN 1936-086X
Zeitschrift ACS Nano
Quellenangaben Band: 8, Heft: 1, Seiten: 222-233 Artikelnummer: , Supplement: ,
Verlag American Chemical Society (ACS)
Verlagsort Washington
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Lung Health and Immunity (LHI)
Institute of Epidemiology (EPI)
POF Topic(s) 30202 - Environmental Health
Forschungsfeld(er) Lung Research
Genetics and Epidemiology
PSP-Element(e) G-505000-008
G-504000-001
G-505000-001
PubMed ID 24364563
DOI 10.1021/nn403256v
WOS ID WOS:000330542900021
Scopus ID 84893454746
Erfassungsdatum 2014-02-21
[➜Korrektur melden]