Synthesis and characterization of thiolated pectin stabilized gold coated magnetic nanoparticles
IR@NPL: CSIR-National Physical Laboratory, New Delhi
View Archive Info| Field | Value | |
| Title |
Synthesis and characterization of thiolated pectin stabilized gold coated magnetic nanoparticles
|
|
| Creator |
Arora, Varun
Sood, Ankur Shah, Jyoti Kotnala, R. K. Jain, Tapan K. |
|
| Subject |
Materials Science
|
|
| Description |
Core-shell nanoparticles, magnetic core and gold shell, were synthesized by reduction of gold chloride on the surface of magnetic nanoparticles; using tyrosine as a reducing agent. The formation of gold shell on magnetic nanoparticles was confirmed by X-ray diffraction (XRD) and UV-Visible spectroscopy. The core-shell nanoparticles (CSn) were conjugated with thiolated pectin to form a stable aqueous dispersion. The hydrodynamic size of thiolated pectin stabilized core-shell nanoparticles (TP-CSn) measured by Dynamic light scattering (DLS) was 160.5 nm with a poly dispersity index (PDI) of 0.302, whereas the mean particle size of TP-CSn calculated by high resolution transmission electron microscopy (HRTEM) was 10.8 +/- 2.7 nm. The value of zeta potential for TP-CSn was -13.6 mV. There was a decrease in the value of saturation magnetization upon formation of the gold shell on magnetic nanoparticles. The amount of thiolated pectin bound to the surface of core-shell nanoparticles, calculated using Thermogravimetric analysis (TGA), was 6% of sample weight.
|
|
| Publisher |
Elsevier
|
|
| Date |
2016-04-15
|
|
| Type |
Article
PeerReviewed |
|
| Format |
application/pdf
|
|
| Identifier |
http://npl.csircentral.net/2388/1/Synthesis%20and%20characterization%20of.pdf
Arora, Varun and Sood, Ankur and Shah, Jyoti and Kotnala, R. K. and Jain, Tapan K. (2016) Synthesis and characterization of thiolated pectin stabilized gold coated magnetic nanoparticles. Materials Chemistry and Physics , 173. pp. 161-167. ISSN 0254-0584 |
|
| Relation |
http://npl.csircentral.net/2388/
|
|