Navigation Links
Laser beam makes cells 'breathe in' water and potentially anti-cancer drugs
Date:3/16/2011

Shining a laser light on cells and then clicking off the light makes the cells "breathe in" surrounding water, providing a potentially powerful delivery system for chemotherapy drugs, as well as a non-invasive way to target anti-Alzheimer's medicines to the brain. That's the conclusion of a report in ACS's The Journal of Physical Chemistry Letters.

Andrei Sommer's group, with Emad Aziz and colleagues note using this technique before to force cancer cells to sip up anti-cancer drugs and fluorescent dyes. Pulses of laser light can also change the volume of water inside cells in a way that plumps up wrinkles and makes skin look younger, the researchers found in an earlier study. "The potential applications of the technique range from anticancer strategies to the design principles of nano-steam engines," the report states. Using the so-called Liquidrom ambient approach, developed by Aziz's group, the researchers combined for the first time laser irradiation with soft X-rays obtained from a cyclotron radiation source to explore the molecular structure of interfacial water layers under ambient conditions.

The researchers now showed that laser light aimed at a cell causes the water inside the cell to expand. When the light goes off, the volume of water collapses again, creating a strong pull that also sucks in the water surrounding the cell. This "breathing in and out" of the water molecules can pull chemotherapy drugs into a cell faster than they would normally penetrate, the researchers found. "In other words, we discovered a powerful method to kill cancer cells by pumping anti-cancer drugs into them via laser light," said Sommer.


'/>"/>

Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society
Source:Eurekalert

Page: 1

Related biology news :

1. Sensitive laser instrument could aid search for life on Mars
2. ESA tests laser to measure atmospheric carbon dioxide
3. Princeton researchers discover new type of laser
4. Scientists use lasers to measure changes to tropical forests
5. Fattysaurus or thinnysaurus? How dinosaurs measure up with laser imaging
6. Researcher: Lasers used to detect melamine in baby formula
7. Using high-precision laser tweezers to juggle cells
8. Healing wounds with lasers, vehicles that drive themselves, other cutting-edge optics
9. Nonstick and laser-safe gold aids laser trapping of biomolecules
10. New Report Just Published: World Solid-State, Fiber, Gas and Dye Lasers Market Report
11. Laser processes promise better artificial joints, arterial stents
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/6/2017)... 2017 Forecasts by Product Type ... by End-Use (Transportation & Logistics, Government & Public Sector, ... Fossil Generation Facility, Nuclear Power), Industrial, Retail, Business Organisation ... Are you looking for a definitive report on the ... ...
(Date:4/3/2017)... WASHINGTON , April 3, 2017 /PRNewswire-USNewswire/ ... single-cell precision engineering platform, detected a statistically ... cell product prior to treatment and objective ... highlight the potential to predict whether cancer ... prior to treatment, as well as to ...
(Date:3/28/2017)... India , March 28, 2017 ... IP, Biometrics), Hardware (Camera, Monitors, Servers, Storage Devices), Software ... Vertical, and Region - Global Forecast to 2022", published ... Billion in 2016 and is projected to reach USD ... between 2017 and 2022. The base year considered for ...
Breaking Biology News(10 mins):
(Date:4/21/2017)... , ... April 21, 2017 , ... Having worked on ... year, Formaspace is pleased to introduce it to top lab design architects from around ... Jeff Turk and VP of Industrial Design and Engineering Greg Casey will be at ...
(Date:4/21/2017)... ... 2017 , ... The AMA is happy to announce that $48,000 in scholarships ... The scholarships are created through funds donated by model aviation organizations and individuals, AMA ... the AMA Scholarship Committee, which is made up of model aviation pilots and enthusiasts. ...
(Date:4/20/2017)... , ... April 20, 2017 , ... ... , this new webinar will explore challenging patient cases when screening for direct ... hospital, there may be a need for bridging parental anticoagulation especially for those ...
(Date:4/20/2017)... ... 2017 , ... USDM Life Sciences , the leading risk management, technological ... pleased to announce Holger Braemer as Vice President of its Europe division ... Germany. , Braemer is an integral part of USDM’s expansion of services and ...
Breaking Biology Technology: