Irreversible Adsorption of Gold Nanospheres on Fiber Optical Tapers and Microspheres

Details

• Personal Author:
  Jao C-Y ; Kandas IL ; Liu B ; Robinson HD ; Xu Y ; Yi J
• Description:
  We study the adsorption of gold nanospheres onto cylindrical and spherical glass surfaces from quiescent particle suspensions. The surfaces consist of tapers and microspheres fabricated from optical fibers and were coated with a polycation, enabling irreversible nanosphere adsorption. Our results fit well with theory, which predicts that particle adsorption rates depend strongly on surface geometry and can exceed the planar surface deposition rate by over two orders of magnitude when particle diffusion length is large compared to surface curvature. This is particularly important for plasmonic sensors and other devices fabricated by depositing nanoparticles from suspensions onto surfaces with non-trivial geometries. [Description provided by NIOSH]
• Subjects:
  Occupational Health Particulate Matter Safety
• Keywords:
  Adsorption Fibers Gold Nanomaterials Nanoparticles Nanosphere Surface Properties
• ISSN:
  0003-6951
• Document Type:
  Text
• Funding:
  Cooperative Agreement
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  100
• Issue:
  15
• NIOSHTIC Number:
  nn:20056690
• Citation:
  Appl Phys Lett 2012 Apr; 100(15):153107-1531074
• Email:
  yong@vt.edu
• CAS Registry Number:
  Gold (CAS RN 7440-57-5)
• Federal Fiscal Year:
  2012
• NORA Priority Area:
  Construction
• Performing Organization:
  Virginia Polytechnic Institute and State University
• Peer Reviewed:
  True
• Start Date:
  20090901
• Source Full Name:
  Applied Physics Letters
• End Date:
  20150131
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:07aaf6a116da895af5441f2ef4fe5704f2281a442602695db4aa6d9882c7d44833658b0a0f7f57e76749210430beec26ccc73a0c8c1b7f2bc50e17eb6f3f7a15
• Download URL:
  https://stacks.cdc.gov/view/cdc/214243/cdc_214243_DS1.pdf
• File Type:
  [PDF - 206.91 KB ]