nanotek-2016_posters-accepted-abstracts

2 / 23

Page 40
Notes:
conferenceseries.com
Volume 7, Issue 6 (Suppl) J Nanomed Nanotechnol
ISSN: 2157-7439 JNMNT, an open access journal Nanotek 2016
December 05-07, 2016
December 05-07, 2016 Phoenix, USA
13th International Conference on
Nanotek & Expo
Xiaoxue Zhang et al., J Nanomed Nanotechnol 2016, 7:6 (Suppl)
Deposition of silver nanoparticles/poly (amidoamine) dendrimer/graphene oxide nanohybrids on sensor
surface for anti-biofouling
Xiaoxue Zhang and Øyvind Mikkelsen
Norweigian University of Science and Technology, Norway
Surface fouling, which leads to a decrease in sensitivity and life-time of sensors, has been considered as a severe problem in sensing
system. Therefore, there is an urgent demand for finding suitable anti-fouling materials in order to protect against or minimize
the fouling on surface of sensor. It has been found that Graphene Oxide (GO), Silver Nanoparticles (Ag NPs) and Poly (amidoamine)
(PAMAM) dendrimers exhibit strong antibacterial and anti-biofouling behaviour. Moreover, the highly branched and well defined
PAMAMdendrimer has shown promising advantages on controlling the shape, size, stability, and solubility of metal nanoparticles due
to its uniform compositions and structures. In this work, a nanohybrid, comprising silver nanoparticles within third-generation NH2-
terminated PAMAM dendrimer which grafted onto GO, was applied on the surface of sensor by dip coating. The content of PAMAM
grafted on GO was determined by a Thermal Gravimetric Analyzer (TGA). The structure of this nanohybrids was characterized by
Fourier transform infrared spectroscopy (FT-IR) and Raman spectroscopy. The morphologies of Ag NPs with different size, which
synthesized and deposited on GO/PAMAM, were investigated by Scanning Electron Microscopy (SEM) and Transmission Electron
Microscopy (TEM). Furthermore, the anti-biofouling properties of the nanohybrid was also investigated by SEM and TEM after
inserting control sensor and sensor with coating surface into closed-containment aquaculture systems for eight weeks.
Biography
Xiaoxue Zhang has completed her master at the age of 25 years old from Soochow University. She is the PhD candidate of department of chemistry at Norweigian
University of Science and Technology now. Her project is coating nanomaterials on the surface of sensor to protect against or minize fouling.