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Title: Tuning Optical Properties of Encapsulated Clusters of Gold Nanoparticles through Stimuli‐Triggered Controlled Aggregation

Journal Article · · Chemistry - A European Journal

Abstract Gold nanoparticles entrapped in the hollow polymer nanocapsules undergo pH‐mediated controlled aggregation. Encapsulated clusters of nanoparticles show absorbance at higher wavelengths compared with individual nanoparticles. The size of the aggregates is controlled by the number of nanoparticles entrapped in individual nanocapsules. Such controlled aggregation may permit small biocompatible nanoparticles exhibit desirable properties for biomedical applications that are typically characteristic of large nanoparticles.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1400756
Journal Information:
Chemistry - A European Journal, Journal Name: Chemistry - A European Journal Vol. 22 Journal Issue: 23; ISSN 0947-6539
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

References (37)

Magnetic nanoparticles for drug delivery journal June 2007
In vivo toxicity, biodistribution, and clearance of glutathione-coated gold nanoparticles journal February 2013
Size-Selective Yolk-Shell Nanoreactors with Nanometer-Thin Porous Polymer Shells journal July 2015
Synthesis, Characterization, and Long-Term Stability of Hollow Polymer Nanocapsules with Nanometer-Thin Walls journal September 2010
Dimers of Silver Nanospheres: Facile Synthesis and Their Use as Hot Spots for Surface-Enhanced Raman Scattering journal January 2009
Fluorescence Lifetime Measurements and Biological Imaging journal May 2010
PEGylation and Zwitterionization: Pros and Cons in the Renal Clearance and Tumor Targeting of Near-IR-Emitting Gold Nanoparticles journal October 2013
Facile Directed Assembly of Hollow Polymer Nanocapsules within Spontaneously Formed Catanionic Surfactant Vesicles journal January 2014
Simultaneous templating of polymer nanocapsules and entrapped silver nanoparticles journal January 2010
Gold nanoparticles as computerized tomography (CT) contrast agents journal January 2012
In vivo tumor targeting and spectroscopic detection with surface-enhanced Raman nanoparticle tags journal December 2007
Functionalization of Imprinted Nanopores in Nanometer-Thin Organic Materials journal October 2008
Gold Nanoparticles in Chemical and Biological Sensing journal February 2012
Functionalization of hollow nanoparticles for nanoreactor applications journal October 2014
Role of Hydrogen Bonding in the pH-Dependent Aggregation of Colloidal Gold Particles Bearing Solution-Facing Carboxylic Acid Groups journal July 2009
Directed Assembly of Vesicle-Templated Polymer Nanocapsules under Near-Physiological Conditions journal January 2015
Synergistic self-assembly of scaffolds and building blocks for directed synthesis of organic nanomaterials journal January 2013
New Strategies for Fluorescent Probe Design in Medical Diagnostic Imaging journal May 2010
Selectively Initiated Ship-In-A-Bottle Assembly of Yolk–Shell Nanostructures journal December 2013
Phagocytosis Independent Extracellular Nanoparticle Clearance by Human Immune Cells journal January 2010
Gold nanoparticles: Optical properties and implementations in cancer diagnosis and photothermal therapy journal January 2010
Organization of 'nanocrystal molecules' using DNA journal August 1996
Controlled Assembly of Biocompatible Metallic Nanoaggregates Using a Small Molecule Crosslinker journal July 2015
PEGylation and Zwitterionization: Pros and Cons in the Renal Clearance and Tumor Targeting of Near-IR-Emitting Gold Nanoparticles journal October 2013
Functionalization of Imprinted Nanopores in Nanometer-Thin Organic Materials journal October 2008
Nanoparticle contrast agents for computed tomography: a focus on micelles: NANOPARTICLE CONTRAST AGENTS FOR CT journal January 2014
The biodistribution of gold nanoparticles designed for renal clearance journal January 2013
Unique Gold Nanoparticle Aggregates as a Highly Active Surface-Enhanced Raman Scattering Substrate journal December 2004
Nanocapsules with “invisible” walls journal January 2010
Size-dependent clearance of gold nanoparticles from lungs of Sprague–Dawley rats after short-term inhalation exposure journal June 2014
Formation of Spherical Nanostructures by the Controlled Aggregation of Gold Colloids journal March 2006
pH-Induced Aggregation of Gold Nanoparticles for Photothermal Cancer Therapy journal September 2009
Structure−Activity Relationships in Gold Nanoparticle Dimers and Trimers for Surface-Enhanced Raman Spectroscopy journal July 2010
Reversible Controlled Assembly of Thermosensitive Polymer-Coated Gold Nanoparticles journal October 2011
A DNA-based method for rationally assembling nanoparticles into macroscopic materials journal August 1996
Safety profile and cellular uptake of biotemplated nanocapsules with nanometre-thin walls journal January 2011
Gold and Silver Nanoparticles in Sensing and Imaging:  Sensitivity of Plasmon Response to Size, Shape, and Metal Composition journal October 2006