What Makes a Winner: International Science & Engineering Visualization Challenge

Image: Light Scattered by Gold Nanorods. Courtesy: US National Science Foundation MMG.
Credit: University South Carolina NanoCenter.

Special Feature:

2008 Visualization Challenge: Slideshow

Science Podcast segment:Interview with a Competition Judge

The "Light Scattered by Gold Nanorods" image "shows gold nanorods, embedded in a cell-populated collagen gel, scatter light as viewed under a darkfield microscope."

" The collective excitation of electrons in the conduction band of gold nanoparticles arising from resonance with incident visible radiation is referred to as localized surface plasmon resonance. This excitation leads to resonant Rayleigh light scattering. Because of this strong scattering, individual nanoparticles, much smaller than the wavelength of light, can be observed using an optical microscope. There has been considerable interest in resonant Rayleigh scattering from gold and silver nanoparticles for biological and chemical analysis. In this application, a fibroblast seeded collagen gel, an in vitro material system often used to model wound healing, is embedded with nanoparticles. The pattern of scattered light will be tracked, using computerized pattern matching and image correlation techniques, to measure the deformation that occurs as the collagen gel contracts, in a simulation of the formation of scar tissue. It is hoped that these small scale measurements will illustrate local heterogeneity in the mechanical response of the material."

" This image is part of a proof-of-concept experiment for an interdisciplinary project between engineers, chemists, cell biologists and artists from three schools at the University of South Carolina, the College of Arts and Sciences, the College of Engineering and Information Technology and the School of Medicine. It was an entry in the 2005 Science & Engineering Visualization Challenge competition, sponsored by the National Science Foundation and the Journal Science. The competition is held each year to recognize outstanding achievements by scientists, engineers, visualization specialists and artists who are innovators in using visual media to promote the understanding of research results and scientific phenomena. To learn more about the competition and view all the winning entries, see the Science & Engineering Visualization Challenge Special Report (Date of Image: February 2004)".
Source: NSF MultiMedia Gallery


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Tags: NSF, National_Science_Foundation, Rayleigh_light_scattering, Science_&_Engineering_Visualization_Challenge, Science_magazine, alternative_cancer_treatments, gold_nanorods, gold_nanospheres, imaging


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Publications by A. Paszternák:

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Pd/Ni Synergestic Activity for Hydrogen Oxidation Reaction in Alkaline Conditions

The potential use of cellophane test strips for the quick determination of food colours

pH and CO2 Sensing by Curcumin-Coloured Cellophane Test Strip

Polymeric Honeycombs Decorated by Nickel Nanoparticles

Directed Deposition of Nickel Nanoparticles Using Self-Assembled Organic Template,

Organometallic deposition of ultrasmooth nanoscale Ni film,

Zigzag-shaped nickel nanowires via organometallic template-free route

Surface analytical characterization of passive iron surface modified by alkyl-phosphonic acid layers

Atomic Force Microscopy Studies of Alkyl-Phosphonate SAMs on Mica

Amorphous iron formation due to low energy heavy ion implantation in evaporated 57Fe thin films

Surface modification of passive iron by alkylphosphonic acid layers

Formation and structure of alkylphosphonic acid layers on passive iron

Structure of the nonionic surfactant triethoxy monooctylether C8E3 adsorbed at the free water surface, as seen from surface tension measurements and Monte Carlo simulations

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