Derek Guenther


Fiber-Optic Bundles Create a World of Pure Imagination

April 01, 2023

A brief history of fiber-optic bundles helps us understand how this technology how it has evolved from use in telecommunications to enabling extraction of three-dimensional (3D) information from two-dimensional (2D) images.

Detection of Melamine and Other Harmful Food Contaminants Using Gold Nanoparticles, Surface-Enhanced Raman Scattering, and Raster Orbital Scanning

June 01, 2014

Melamine is a dangerous substance when it is used to increase the apparent protein content of food. In this article, the use of novel gold nanoparticles for surface-enhanced Raman spectroscopy (SERS) measurements with raster orbital scanning sampling is described for the detection of melamine and other food contaminants.