PMID- 21093587 OWN - NLM STAT- MEDLINE DCOM- 20110714 LR - 20220410 IS - 1873-3441 (Electronic) IS - 0939-6411 (Print) IS - 0939-6411 (Linking) VI - 77 IP - 3 DP - 2011 Apr TI - Geometry and surface characteristics of gold nanoparticles influence their biodistribution and uptake by macrophages. PG - 417-23 LID - 10.1016/j.ejpb.2010.11.010 [doi] AB - Spherical and rod-shaped gold nanoparticles with surface poly(ethylene glycol) (PEG) chains were characterized for size, shape, charge, poly dispersity and surface plasmon resonance. The nanoparticles were injected intravenously to 6-8-week-old female nu/nu mice bearing orthotopic ovarian tumors, and their biodistribution in vital organs was compared. Gold nanorods were taken up to a lesser extent by the liver, had longer circulation time in the blood, and higher accumulation in the tumors, compared with their spherical counterparts. The cellular uptake of PEGylated gold nanoparticles by a murine macrophage-like cell line as a function of geometry was examined. Compared to nanospheres, PEGylated gold nanorods were taken up to a lesser extent by macrophages. These studies point to the importance of gold nanoparticle geometry and surface properties on transport across biological barriers. CI - Copyright (c) 2010 Elsevier B.V. All rights reserved. FAU - Arnida AU - Arnida AD - Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT 84108, USA. FAU - Janat-Amsbury, M M AU - Janat-Amsbury MM FAU - Ray, A AU - Ray A FAU - Peterson, C M AU - Peterson CM FAU - Ghandehari, H AU - Ghandehari H LA - eng GR - R01 DE019050-05/DE/NIDCR NIH HHS/United States GR - R01 DE019050-01/DE/NIDCR NIH HHS/United States GR - R01 DE019050-02/DE/NIDCR NIH HHS/United States GR - R01 DE019050-03/DE/NIDCR NIH HHS/United States GR - R01/PHS HHS/United States GR - R01 DE019050-04/DE/NIDCR NIH HHS/United States GR - R01 DE019050/DE/NIDCR NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20101118 PL - Netherlands TA - Eur J Pharm Biopharm JT - European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V JID - 9109778 RN - 27432CM55Q (Serum Albumin, Bovine) RN - 3WJQ0SDW1A (Polyethylene Glycols) RN - 7440-57-5 (Gold) SB - IM MH - Animals MH - Biological Transport MH - Cell Line MH - Female MH - *Gold MH - Injections, Intravenous MH - Macrophages/*metabolism MH - Metal Nanoparticles/*administration & dosage/chemistry MH - Mice MH - Mice, Nude MH - Microscopy, Electron, Transmission MH - Nanotubes/chemistry MH - Ovarian Neoplasms/metabolism MH - Particle Size MH - Polyethylene Glycols/chemistry MH - Protein Binding MH - Serum Albumin, Bovine/chemistry MH - Surface Properties MH - Tissue Distribution PMC - PMC3379889 MID - NIHMS259353 EDAT- 2010/11/26 06:00 MHDA- 2011/07/16 06:00 PMCR- 2012/06/20 CRDT- 2010/11/25 06:00 PHST- 2010/09/01 00:00 [received] PHST- 2010/11/09 00:00 [revised] PHST- 2010/11/11 00:00 [accepted] PHST- 2010/11/25 06:00 [entrez] PHST- 2010/11/26 06:00 [pubmed] PHST- 2011/07/16 06:00 [medline] PHST- 2012/06/20 00:00 [pmc-release] AID - S0939-6411(10)00299-7 [pii] AID - 10.1016/j.ejpb.2010.11.010 [doi] PST - ppublish SO - Eur J Pharm Biopharm. 2011 Apr;77(3):417-23. doi: 10.1016/j.ejpb.2010.11.010. Epub 2010 Nov 18.