bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)


2008 e-Impact Factor

25 Top Downloaded Articles

Best Selling Articles 2012

Journal Subscription 2013

Editorial Calendar 2013

Submit an Article

Editorial Board

Current Issue

Sensors & Transducers journal's cover

Sensors & Transducers Journal 2011

Sensors & Transducers Journal 2010

Sensors & Transducers Journal 2009

Sensors & Transducers Journal 2008

Sensors & Transducers Journal 2007

2000-2002 S&T e-Digest Contents

2003 S&T e-Digest Contents

2004 S&T e-Digest Contents

2005 S&T e-Digest Contents

2006 S&T e-Digest Contents


Best Articles 2011




Vol. 149, No. 2, February 2013, pp. 20-28




Fabrication of a Gold Nanostar - Embedded Porous Poly(dimethylsiloxan) Platform for Sensing Applications

1 Nikhila ANAND, 1 Shishira VENKATESH, 1 Pramod PUTTA, 1 Stefan STOENESCU, *1 Simona BADILESCU,

1 Muthukumaran PACKIRISAMY, 2 VO-VAN Truong

1 Optical Bio-Micro Systems Laboratory, Mechanical and Industrial Engineering Department, Concordia University,
1455 de Maisonneuve Blvd. W., Montréal, QC H3G 1M8, Canada

2 Department of Physics, Concordia University, 7141 Sherbrook Ouest, Montréal, Québec H4B 1R6, Canada

Tel.: ++514-848-2424,#7098

E-mail: simonabadilescu0@gmail.com


Received: 12 December 2012   /Accepted: 14 February 2013   /Published: 28 February 2013

Digital Sensors and Sensor Sysstems


Abstract: Porous poly(dimethylsiloxan) (PDMS) membranes have been fabricated by using sodium bicarbonate powder and polystyrene microspheres to generate the pores. Large gold nanostars (AuNSs) have been synthesized by a one-pot surfactant-free method by using gold seeds, and the stars have been embedded into the porous material by immersing the samples in the nanostars’ (NSs) aqueous solution. Sensitivity tests performed with samples prepared with the two porogens demonstrated the very high sensitivity toward the surrounding environment of gold nanostars embedded into the polymer. The sensitivity is found to be in the range of 400-550 nm/RIU, compared to approximately only 100 nm/ refractive index unit (RIU) for PDMS with embedded nanospheres. Absorbance spectra of nanostars embedded in the polymer are simulated by using the Finite Difference Time Domain (FDTD) method. A good agreement is found between the calculated and experimental spectra.


Keywords: Nanocomposite, Gold nanostars, FDTD, Porous PDMS, Refractive index sensibility


Acrobat reader logo Click <here> or title of paper to download the full pages article in pdf format



Read free articles about Nanosensors and Chemical Sensors






1999 - 2018 Copyright ©, International Frequency Sensor Association (IFSA). All Rights Reserved.

Home - News - Links - Archives - Tools - Voltage-to-Frequency Converters - Standardization - Patents - Marketplace - Projects - Wish List - e-Shop - Sensor Jobs - Membership - Videos - Publishing - Site Map - Subscribe - Search

 Members Area -Sensors Portal -Training Courses - S&T Digest - For advertisers - Bookstore - Forums - Polls - Submit Press Release - Submit White Paper - Testimonies - Twitter - Facebook - LinkedIn