HOME >> MEDICINE >> NEWS
'Smart scalpel' detects cancer cells in seconds

The Sandia biocavity laser, based in part on semiconductor fabrication techniques, at an estimated cost from $10,000 to $50,000 is also far cheaper to build than a $100,000 (or more expensive) flow cytometry machine that may be desktop or benchtop size. The portable laser device has the potential to provide real-time analysis of up to 100,000 cells per second - a rate five times faster than other methods. It does not require - as do typical bench-top cytometers - a small room, highly trained operators, and a large laser.

DOE's Office of Basic Energy Sciences and Sandia's Laboratory-Directed Research and Development office, which supports discovery-oriented research, fund the materials research underlying this work.

Original disbelief

The device is an outgrowth of more than two decades of work at Sandia on compound semiconductor materials and microcavity laser structures. It could be said to have its roots 14 years ago when Sandia researchers succeeded - against much disbelief in the scientific community - in joining nanometer-thick layers of crystalline materials together to form a vertical cavity laser in the form of a single lattice. This achievement had been thought impossible, since the ultrashort dimensions of the laser's active medium were not thought to permit laser operation. However, the sandwiching materials were so highly reflective that the device worked.

Achievement of these crystalline structures made it possible to routinely create tiny, very efficient lasers out of semiconductors in which nanometer-thick layers of gallium aluminum arsenide are sandwiched between nanometer-thick layers of gallium arsenide. Energizing the middle layer makes it emit photons, as would a crystal. The layers below and above it act as mirrors, reflecting emitted photons back and forth through the emitting material and amplifying the output in the classical process of a laser, though it all happens within horizontal spaces measured in nanometers.

In t
'"/>

Contact: Neal Singer
nsinger@sandia.gov
505-845-7078
DOE/Sandia National Laboratories
22-Mar-2000


Page: 1 2 3 4

Related medicine news :

1. Smart immune cells kill more cancer
2. CAD detects breast cancers that are most challenging to detect
3. Genetic amplification (NAAT) test detects HIV more effectively than standard tests in urban study
4. New CAD system detects colon polyps in colons previously obscured by contrast-enhanced fluid
5. Envisats rainbow vision detects ground moving at pace fingernails grow
6. New breast pap smear detects early cellular changes; May prevent onset of breast cancer
7. Annual CT detects early-stage lung cancer, saves lives
8. A new technique detects earliest signs of Alzheimers in healthy people
9. Cardiac MRI detects thinned heart muscle previously deemed unsalvageable
10. Brief telephonic questionnaire detects early signs of dementia
11. Mammography frequently detects noninvasive tumors

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/19/2019)... ... February 19, 2019 , ... ... stigma in pregnant and postpartum women, a team led by a Worcester Polytechnic ... postpartum often show increased depressive symptoms, greater weight gain during pregnancy, and weight ...
(Date:2/19/2019)... ... February 19, 2019 , ... Landscape Structures Inc., a Delano, Minn.-based commercial ... to be a stunning and fun addition to any play space. Spinning is one ... Curva™ Spinners will provide kids’ brains with valuable equilibrium information. , Whether park and ...
(Date:2/19/2019)... ... February 19, 2019 , ... ... experience to The Oncology Institute of Hope and Innovation. , Dr. Lombardi completed ... cum laude. He received his medical degree from the University of Rochester School ...
(Date:2/19/2019)... ... February 19, 2019 , ... ClearHealth ... to Foley & Lardner LLP, as Recognized Consultants. The CHQI Recognized Consultant Program ... in pursuing CHQI accreditation. , Ms. Wein and Mr. Einhorn are part ...
(Date:2/19/2019)... Fla. (PRWEB) , ... February 18, 2019 , ... ... in the nation to test the PathO3Gen Solutions Footwear Sanitizing Stations to maximize ... Solestice 3/15 TechnologyTM to kill superbugs such as MRSA and C. difficile, which ...
Breaking Medicine News(10 mins):
(Date:2/19/2019)... (PRWEB) , ... February 19, ... ... and infrastructure solutions provider for global service providers, enterprises, and developers, announced ... orchestration platform with the Arvizio MR Studio mixed reality visualization and collaboration ...
(Date:2/19/2019)... ... February 19, 2019 , ... ... for Stage IV metastatic breast cancer (MBC), announces the opening of the 2019 ... Fairchild, “In honor of our 10-year anniversary, we are excited to announce we ...
(Date:2/19/2019)... ... February 19, 2019 , ... ... completed his new book “Live Hard Die Young.” Dr. Oexner was the first ... medicine, therapeutic exercise physiology, and nutritional counseling. Dr. Oexner was a supervisor on ...
Breaking Medicine Technology:
Cached News: