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

to flow cells in real time, which no current device I'm aware of can do. We're still looking at the basic science to nail down the major determining factor but the results are encouraging. We can show differences between tumor and non-tumor cells for the cancer we're examining."

Says Gourley, "People didn't believe we could pump cells through a microlaser, make the cells part of the lasing process, and produce meaningful results. As it's turned out, we can do all these things."

The device works by incorporating blood cells into the lasing process, rather than shining a laser light like a spotlight upon the cell. A vertical microlaser beam enters individual cells as they are pushed by a micropump through tiny channels cut into the glass surface of the device. Because cancerous cells contain more protein than normal cells, their additional density changes (by refraction) the speed of the laser light passing through them. This change is registered as a difference in output frequency by a receiver and transmitted by optical fiber to a laptop computer a few feet from the instrument. An algorithm translates the data into a graph that, changing moment by moment, provides surgeons with easily read peaks and valleys that clearly depict when blood pumped from the incision has been cleared of cancerous cells.

In a surgical scalpel, an aspirator would vacuum fluid from the incision to the microcavity laser enclosed in the scalpel's handle. Information would be transmitted from the scalpel to the computer by optical fiber.

Far quicker results

The microcavity laser is far quicker to produce results than flow cell cytometers - the standard instrument used to determine the presence of cancer cells obtained from an incision. Flow cell cytometers require cells to be stained with a dye in order to examine them. This lengthy process may take hours to alter the cells, and is of little immediate help to the patient, who has already been sewn back together.


'"/>

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:8/31/2020)... ... , ... Just found out your dear friend has cancer? , It’s hard to hear your ... shares their diagnosis. Once the shock wears off, the questions and fears can be overwhelming. ... best ways to help? Words are failing me. I’m scared. I want to DO something. ...
(Date:8/31/2020)... ... August 31, 2020 , ... Colorado State University Global (CSU ... affordable online education – is proud to announce its new master’s degree in ... its kind in the nation, the 60-credit hour program is designed to provide ...
(Date:8/31/2020)... ... August 31, 2020 , ... In an effort to give back to ... 10 percent of each hotel room booked with a special new rate code to ... Indiana (RMHC-CNI) , effective immediately. Donations will be applied to any room type, ...
(Date:8/28/2020)... ... 28, 2020 , ... Ernst & Young LLP (EY US) ... Of The Year® 2020 Florida Award finalist. Now in its 34th year, the ... growth and prosperity as they build and sustain successful businesses that transform our ...
(Date:8/28/2020)... (PRWEB) , ... August 28, 2020 , ... Integrated ... Miami is the first Florida school to deploy its breakthrough Mobile Biodefense Indoor Air ... airborne COVID-19. True North Classical Academy plans to fully reopen equipped with the filtration ...
Breaking Medicine News(10 mins):
(Date:9/1/2020)... ... September 01, 2020 , ... While coronavirus cases continue to increase across ... and community organizations remain closed. Because about 80% of blood donations are made at ... blood donors and blood drive hosts to ensure blood products are readily available for ...
(Date:8/31/2020)... (PRWEB) , ... August 31, 2020 , ... If you live in New York City ... real estate part makes sense, it’s the law of supply and demand, but are plastic ... has a significant percentage of their patients that make the four-hour trip to have ...
(Date:8/28/2020)... (PRWEB) , ... August 28, 2020 , ... Dr. ... reproductive and endoscopic surgeon and serves as a clinical professor in the Department of ... of the American Laparoscopy Society & Pacific Coast Reproductive Society and is a Clinical ...
Breaking Medicine Technology:
Cached News: