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Influence of size and shape on the anatomical distribution of endotoxin-free gold nanoparticles

Talamini, L.; Violato, M. B.; Cai, Q.; Monopoli, M.; Kantner, K.; Krpetic, Z.; Perez-Potti, A.; Cookman, J.; Garry, D.; Silveira, C. P.; Boselli, L.; Pelaz, B.; Sechi, T.; Cambier, S.; Gutleb, A. C.; Feliu, N.; Yan, Y.; Salmona, M.; Parak, W. J.; Dawson, K. A.; Bigini, P.

Authors

L. Talamini

M. B. Violato

Q. Cai

M. Monopoli

K. Kantner

A. Perez-Potti

J. Cookman

D. Garry

C. P. Silveira

L. Boselli

B. Pelaz

T. Sechi

S. Cambier

A. C. Gutleb

N. Feliu

Y. Yan

M. Salmona

W. J. Parak

K. A. Dawson

P. Bigini



Abstract

The transport and the delivery of drugs through nanocarriers is a great challenge of pharmacology. Since the production of liposomes to reduce the toxicity of doxorubicin in patients, a plethora of nanomaterials have been produced and characterized. Although it is widely known that elementary properties of nanomaterials influence their in vivo kinetics, such interaction is often poorly investigated in many preclinical studies. The present study aims to evaluate the actual effect of size and shape on the biodistribution of a set of gold nanoparticles (GNPs) after intravenous administration in mice. To this goal, quantitative data achieved by Inductively Coupled Plasma Mass Spectrometry and observational results emerging from histochemistry (autometallography and enhanced dark field hyperspectral microscopy) were combined. Since the immune system plays a role in bio-nano interaction we used healthy immune-competent mice. To keep the immune-surveillance on the physiological levels we synthesized endotoxin-free GNPs to be tested in specific pathogen free animals. Our study mainly reveals that: a) the size and the shape greatly influence the kinetics of accumulation and excretion of GNPs in filter organs; b) spherical and star-like GNPs showed the same percentage of accumulation, but a different localization in liver; c) only star-like GNPs are able to accumulate in lung; d) changes in the geometry did not improve the passage of the blood brain barrier. Overall, this study can be considered as a reliable starting point to drive the synthesis and the functionalization of potential candidates for theranostic purposes in many fields of research.

Citation

Talamini, L., Violato, M. B., Cai, Q., Monopoli, M., Kantner, K., Krpetic, Z., …Bigini, P. (2017). Influence of size and shape on the anatomical distribution of endotoxin-free gold nanoparticles. ACS nano, 11(6), 5519-5529. https://doi.org/10.1021/acsnano.7b00497

Journal Article Type Article
Acceptance Date May 30, 2017
Online Publication Date May 30, 2017
Publication Date Jun 27, 2017
Deposit Date Jun 9, 2017
Journal ACS Nano
Print ISSN 1936-0851
Electronic ISSN 1936-086X
Publisher American Chemical Society
Volume 11
Issue 6
Pages 5519-5529
DOI https://doi.org/10.1021/acsnano.7b00497
Publisher URL http://dx.doi.org/10.1021/acsnano.7b00497
Related Public URLs http://pubs.acs.org/journal/ancac3
https://zenodo.org/record/3453996#.XclN
Additional Information Funders : European Commission;Science Foundation Ireland;Chinese Scholarship Council;Irish Research Council;Ministry of Science, Technology and Innovation of Brazil
Projects : EU FP7 'FutureNanoNeeds';Principal Investigator Award;Starting Investigator Research Grant;EU FP7-PEOPLE-2012- IAPP Marie Curie NanoClassifier;EU H2020 'Nanofacturing';Industry fellowship;Chinese Scholarship Council;Government of Ireland Postgraduate Scholarship;CNPq – Conselho Nacional de Desenvolvimento Científico e Tecnológico
Grant Number: 604602
Grant Number: 12/IA/1422
Grant Number: 15/SIRG/3423
Grant Number: 324519
Grant Number: 646364
Grant Number: 15/IFA/3057
Grant Number: 201408300003
Grant Number: GOIPG/2014/874
Grant Number: 205146/2014-7