DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Precision Loading and Delivery of Molecular Cargo by Size-Controlled Coacervation of Gold Nanoparticles Functionalized with Elastin-like Peptides

Journal Article · · Biomacromolecules
 [1];  [2];  [2]; ORCiD logo [2]
  1. Univ. of Washington, Seattle, WA (United States); University of Washington
  2. Univ. of Washington, Seattle, WA (United States)

Thermoresponsive elastin-like peptides (ELPs) have been extensively investigated in biotechnology and medicine, but little attention has been paid to the process by which coacervation causes ELP-decorated particles to aggregate. Here, using gold nanoparticles (AuNPs) functionalized with a cysteine-terminated 96-repeat of the VPGVG sequence (V96-Cys), we show that the size of the clusters that reversibly form above the ELP transition temperature can be finely controlled in the 250 to 930 nm range by specifying the concentration of free V96-Cys in solution and using AuNPs of different sizes. We further find that the localized surface plasmon resonance peak of the embedded AuNPs progressively red-shifts with cluster size, likely due to an increase in particle–particle contacts. We exploit this fine control over size to homogeneously load precise amounts of the dye Nile Red and the antibiotic Tetracycline into clusters of different hydrodynamic diameters and deliver cargos near-quantitatively by deconstructing the aggregates below the ELP transition temperature. Beyond establishing a key role for free ELPs in the agglomeration of ELP-functionalized particles, our results provide a path for the thermally controlled delivery of precise quantities of molecular cargo. This capability might prove useful in combination photothermal therapies and theranostic applications, and to trigger spatially and temporally uniform responses from biological, electronic, or optical systems.

Research Organization:
Univ. of Washington, Seattle, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0019288
OSTI ID:
2340784
Journal Information:
Biomacromolecules, Journal Name: Biomacromolecules Journal Issue: 4 Vol. 25; ISSN 1525-7797
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (57)

Hydrophobicity scale for proteins based on inverse temperature transitions journal September 1992
Biodegradation of elastin‐like polypeptide nanoparticles journal May 2012
Sequence-specific determination of protein and peptide concentrations by absorbance at 205 nm: Sequence-Specific Protein Concentration at 205 nm journal April 2013
Plasmonic photothermal therapy (PPTT) using gold nanoparticles journal August 2007
Polypentapeptide of elastin: Temperature dependence of ellipticity and correlation with elastomeric force journal July 1985
Poly(N-isopropylacrylamide): experiment, theory and application journal January 1992
Isolation and Amino Acid Sequences of Tropoelastin Peptides journal April 1973
Plasmonic coupling in noble metal nanostructures journal March 2010
One-pot synthesis of pH and temperature sensitive gold clusters mediated by a recombinant elastin-like polymer journal April 2010
Introduction: Nanoparticles in Catalysis journal January 2020
Surpassing Single Line Width Active Tuning with Photochromic Molecules Coupled to Plasmonic Nanoantennas journal January 2018
Temperature-Responsive Smart Nanocarriers for Delivery Of Therapeutic Agents: Applications and Recent Advances journal August 2016
Thermally Triggered in Situ Assembly of Gold Nanoparticles for Cancer Multimodal Imaging and Photothermal Therapy journal March 2017
The Importance of Excess Poly(N-isopropylacrylamide) for the Aggregation of Poly(N-isopropylacrylamide)-Coated Gold Nanoparticles journal February 2016
Genetically Encoded Synthesis of Protein-Based Polymers with Precisely Specified Molecular Weight and Sequence by Recursive Directional Ligation:  Examples from the Elastin-like Polypeptide System journal March 2002
Quantification of the Effects of Chain Length and Concentration on the Thermal Behavior of Elastin-like Polypeptides journal May 2004
Catalysis by Au@pNIPAM Nanocomposites: Effect of the Cross-Linking Density journal May 2010
Gold Nanoparticles:  Assembly, Supramolecular Chemistry, Quantum-Size-Related Properties, and Applications toward Biology, Catalysis, and Nanotechnology journal December 2003
Localized Surface Plasmon Resonance Sensors journal June 2011
Phase transition of aqueous solutions of poly(N-isopropylacrylamide) and poly(N-isopropylmethacrylamide) journal April 1989
Temperature of polypeptide inverse temperature transition depends on mean residue hydrophobicity journal May 1991
Interfacial Phase Transition of an Environmentally Responsive Elastin Biopolymer Adsorbed on Functionalized Gold Nanoparticles Studied by Colloidal Surface Plasmon Resonance journal July 2001
Specific Ion Effects on the Water Solubility of Macromolecules:  PNIPAM and the Hofmeister Series journal October 2005
Magnetic Tuning of Plasmonic Excitation of Gold Nanorods journal October 2013
The Optical Properties of Metal Nanoparticles:  The Influence of Size, Shape, and Dielectric Environment journal January 2003
Effects of Salt on the Lower Critical Solution Temperature of Poly ( N -Isopropylacrylamide) journal December 2010
Physical Chemistry of Biological Free Energy Transduction As Demonstrated by Elastic Protein-Based Polymers journal December 1997
Genetically Programmable Thermoresponsive Plasmonic Gold/Silk-Elastin Protein Core/Shell Nanoparticles journal April 2014
Optically Responsive Gold Nanorod−Polypeptide Assemblies journal November 2008
Dynamics of Place-Exchange Reactions on Monolayer-Protected Gold Cluster Molecules journal May 1999
Electric Field Tuning of Plasmonic Response of Nanodot Array in Liquid Crystal Matrix journal September 2005
Calibration of Dynamic Molecular Rulers Based on Plasmon Coupling between Gold Nanoparticles journal November 2005
On the Universal Scaling Behavior of the Distance Decay of Plasmon Coupling in Metal Nanoparticle Pairs: A Plasmon Ruler Equation journal July 2007
Electrically and Optically Tunable Plasmonic Guest–Host Liquid Crystals with Long-Range Ordered Nanoparticles journal June 2014
Laser Welding of Ruptured Intestinal Tissue Using Plasmonic Polypeptide Nanocomposite Solders journal April 2013
Purification of recombinant proteins by fusion with thermally-responsive polypeptides journal November 1999
Light-controlled self-assembly of non-photoresponsive nanoparticles journal July 2015
Reversible gating of smart plasmonic molecular traps using thermoresponsive polymers for single-molecule detection journal November 2015
Site-specific adsorption of gold nanoparticles coated with thermo-responsive peptides journal December 2012
Stretchable and wearable colorimetric patches based on thermoresponsive plasmonic microgels embedded in a hydrogel film journal September 2018
Engineering precision nanoparticles for drug delivery journal December 2020
pH-responsive high stability polymeric nanoparticles for targeted delivery of anticancer therapeutics journal March 2020
Why gold nanoparticles are more precious than pretty gold: Noble metal surface plasmon resonance and its enhancement of the radiative and nonradiative properties of nanocrystals of different shapes journal January 2006
Dynamic visualization of photothermal heating by gold nanocages using thermoresponsive elastin like polypeptides journal January 2016
Plasmonic and colloidal stability behaviours of Au-acrylic core–shell nanoparticles with thin pH-responsive shells journal January 2018
Cell up-take control of gold nanoparticles functionalized with a thermoresponsive polymer journal January 2009
Polymer control of ligand display on gold nanoparticles for multimodal switchable cell targeting journal January 2011
Tetracycline Antibiotics and Resistance journal March 2016
Nanomaterials for Drug Delivery journal July 2012
Elastin-Like Polypeptides for Biomedical Applications journal June 2020
Solid-Binding Proteins: Bridging Synthesis, Assembly, and Function in Hybrid and Hierarchical Materials Fabrication journal June 2021
Brachytherapy Using Injectable Seeds That Are Self-Assembled from Genetically Encoded Polypeptides In Situ journal November 2012
The construction of elastin-like polypeptides and their applications in drug delivery system and tissue repair journal November 2023
Applications of Gold Nanoparticle-Loaded Thermosensitive Elastin-Mimetic Dendrimer to Photothermal Therapy journal January 2016
Tetracycline Water Soluble Formulations with Enhanced Antimicrobial Activity journal November 2020
Facile Synthesis of Peptide-Conjugated Gold Nanoclusters with Different Lengths journal November 2021
Thermo-Sensitive Nanomaterials: Recent Advance in Synthesis and Biomedical Applications journal November 2018