SPR signals enhancement by gold nanorods for cell surface marker detection
نویسندگان
چکیده
منابع مشابه
Antibody Conjugated Gold Nanoparticles for Detection of Small Amounts of Antigen Based on Surface Plasmon Resonance (SPR) Spectra
In this paper, a fast and sensitive localized surface plasmon resonance (LSPR) based biosensor was developed and the optimization of gold – antibody conjugates through investigation of different parameters were performed. Gold nanoparticles (AuNPs) with a size of ~20 nm were synthesized via chemical reduction of HAuCl4 with trisodium citrate as reducing and stabilizing agent. The impacts of pH ...
متن کاملEnhancement of Paramagnetic Relaxation by Photoexcited Gold Nanorods
Electron spin resonance (ESR) spectroscopy was used to investigate the switchable, light-dependent effects of gold nanorods (GNRs) on paramagnetic properties of nitroxide spin probes. The photoexcited GNRs enhanced the spin-spin and spin-lattice relaxations of nitroxide spin probes. It was shown that molecular oxygen plays the key role in this process. Our results demonstrate that ESR is a powe...
متن کاملSurface Driven Bulk Reconstruction of Gold Nanorods
The properties of metallic clusters of various shapes, on the nanometer length scale, can be dramatically different from the corresponding bulk material due to their very large surface-to-volume ratio. The unique optical and mechanical properties of such nanoclusters hold great promise for the development of nanotechnology. Gold nanoclusters, for example, have found application in such diverse ...
متن کاملSurface-driven bulk reorganization of gold nanorods.
Molecular dynamic simulations are used to study the structural stability of gold nanorods upon heating. We show that the global stability of the rod is governed by the free energetics of its surface. In particular, an instability of surface facets nucleates a bulk instability that leads to both surface and bulk reorganization of the rod. The surface reorganizes to form new, more stable, {111} f...
متن کاملAttomole Detection of Glyphosate by Surface- Enhanced Raman Spectroscopy Using Gold Nanorods
Surface-enhanced Raman spectroscopy (SERS) was used for the detection of glyphosate using gold nanorods derivatized with 4mercapto phenylboronic acid. Since the introduction of the SERS, nanomaterials have been of significant interest as SERS substrates due to their tunable optical properties. The design and fabrication of a variety of nanomaterials with large SERS enhancement factor have been ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: BioImpacts
سال: 2018
ISSN: 2228-5660,2228-5652
DOI: 10.15171/bi.2019.10