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Although carbodiimides and succinimides are broadly employed for the formation of amide bonds (i.e., in amino acid coupling), their use in the coupling of peptides to water-soluble carboxylic-terminated colloidal gold nanoparticles remains challenging. In this article, we present an optimization study for the successful coupling of the KPQPRPLS peptide to spherical and rodlike colloidal gold nanoparticles. We show that the concentration, reaction time, and chemical environment are all critical to achieving the formation of robust, peptide-coated colloidal nanoparticles. Agarose gel electrophoresis was used for the characterization of conjugates.
School of Physics and Astronomy, University of Southampton , Southampton SO17 1BJ, U.K.
This article was published in the following journal.
Name: Langmuir : the ACS journal of surfaces and colloids
Pro-apoptotic peptides induce intrinsic apoptosis pathway in cancer cells. However, poor cellular penetration of the peptides is often associated with limited therapeutic efficacy. In this report, a s...
Gold nanovesicles contain multiple nanocrystals within a polymeric coating. The strong plasmonic coupling between adjacent nanoparticles in their vesicular shell makes ultrasensitive biosensing and bi...
Fibrillation of Amyloid beta (Aβ) peptide is the hallmark of Alzheimer's disease. Since the interactions at the bio-nano interface affect the fibrillation tendency of this peptide, a microscopic know...
We have developed new functionalized polymers capable of being easily coated by gold nanoparticles, uniformly distributed on the surface of the polymers, by simply adding a gold(III) solution in water...
Here, we demonstrate a detailed protocol for the radiosynthesis of a (125)I-labeled azide prosthetic group and its application to the efficient radiolabeling of DBCO-group-functionalized gold nanopart...
The purpose of this study is to determine whether oral topic silver nanoparticles are effective to reduce potential pathogen microbial loads in mechanical ventilation patients.
Primary purpose :To early detect cardiac allograft vasculopathy and to identify patients with high risk of cardiac events, by coupling the analysis of the kinetics of the brain natriuretic...
The nanoparticles (NP) are defined as particles whose size is no greater than 100 nanometers. However, their impact on health remains little evaluated. Placental transfer of NP has been p...
The aim of this study is to evaluate the antibacterial activity of crosslinked quaternary ammonium polyethylenimine (PEI) nanoparticles incorporated at 1-2% w/w in a commercial soft liner ...
The effect of Antibacterial Nanoparticles, Incorporated in cement, on S.mutans in the margins of provisional restorations is going to be examined clinically by using two kinds of provision...
Nanoparticles produced from metals whose uses include biosensors, optics, and catalysts. In biomedical applications the particles frequently involve the noble metals, especially gold and silver.
Nanometer-sized particles that are nanoscale in three dimensions. They include nanocrystaline materials; NANOCAPSULES; METAL NANOPARTICLES; DENDRIMERS, and QUANTUM DOTS. The uses of nanoparticles include DRUG DELIVERY SYSTEMS and cancer targeting and imaging.
Unstable isotopes of gold that decay or disintegrate emitting radiation. Au 185-196, 198-201, and 203 are radioactive gold isotopes.
Stable gold atoms that have the same atomic number as the element gold, but differ in atomic weight. Au-197 is a stable isotope.
A suspension of metallic gold particles.