University of Cincinnati (Ohio) philosophy and psychology graduate assistant Luis Favela studies how people perceive their environment, and how those perceptions inform their ...
Metamaterials can overcome traditional limits on optical resolution, but they pose other challenges including high losses, dependence on resonances, and limited depths of field...
Spectral imaging is finding more and more applications in life sciences, from noninvasive disease diagnosis to food processing. Various imaging spectrometers make those applications...
New 3D imaging tools and techniques are enabling drug development with multiple, simultaneous views; tracking of multiple targets; greater depth and resolution; multimode operation...
The ability to measure cell volume enables greater understanding of biological processes, including disease development. A new method based on light absorption enables high throughput...
Advances in semiconductor diode laser sources are facilitating the migration of medical and aesthetic lasers to consumer markets. Semiconductor diode lasers offer advantages over...
With a resolution of 1-2 microns, micro-OCT is the only noninvasive method able to comprehensively and simultaneously study both the subcellular structures and functions important...
The China Food and Drug Administration has given clearance to Bruker Corp. to market and sell its in vitro diagnostics MALDI Biotyper system as a medical device for identifying...
Biophotonics-based systems earning recent regulatory approval include a welcome advance in colorectal cancer screening that gives patients a pass on the usual dietary restrictions...
"Potential applications in medicine are exciting," says J. Gary Eden, professor of electrical and computer engineering (ECE) at the University of Illinois Urbana-Champaign (UIUC...
Singlet oxygen, the first excited state of molecular oxygen, is a highly reactive species that plays an important role in a wide range of biological processes, including cell ...
A powerful new imaging technology involving femtosecond laser pulses and bioluminescent proteins is fast enough to observe life processes as they happen at the molecular level...
Nanoparticles suspended in liquid, ingested by patients, promises to enable photoacoustic tomography (PAT) imaging for a noninvasive, real-time view of the small intestine.
A new discovery could improve medical imaging within biological tissue: Physicists from the University of Twente and Yale University found that light traveling through a diffusing...
A portable, inexpensive, and microchip-based fluorescence biosensor could improve Type 1 diabetes diagnosis and care, and help researchers better understand the disease.
A new form of spontaneous Raman spectroscopy delivers signals 10,000 times stronger than those obtained from spontaneous Raman scattering, and 100 times stronger than signals ...
![FIGURE 1. Methods of measuring displacement include Archimedes' approach, which yields the object volume independent of the object's properties or geometry, as in the case of a king's crown composed of unknown materials (a). An electrical Coulter counter uses displaced free electrons in an electrolyte and a measurement of voltage to determine cell volume (b). The optical Coulter counter uses the displacement of dye molecules and optical transmission to measure cell volume (c) [3].](https://img.laserfocusworld.com/files/base/ebm/lfw/image/2015/12/1409bowschonbrunf1.png?auto=format,compress&fit=crop&q=45&h=139&height=139&w=250&width=250 "FIGURE 1. Methods of measuring displacement include Archimedes' approach, which yields the object volume independent of the object's properties or geometry, as in the case of a king's crown composed of unknown materials (a). An electrical Coulter counter uses displaced free electrons in an electrolyte and a measurement of voltage to determine cell volume (b). The optical Coulter counter uses the displacement of dye molecules and optical transmission to measure cell volume (c) [3].")
