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:9/30/2014)... German . ... risky situations such as exposure to predators. Researchers from ... a long-term study on different populations of great tits ... ambient temperature. High metabolic rates and low temperatures were ... birds were more likely to approach potential predators. , ...
(Date:9/30/2014)... Ill. (September 30, 2014) People who suffer from ... do to control their asthma besides properly taking medications ... new article in the Annals of Allergy, Asthma ... College of Allergy, Asthma and Immunology (ACAAI), asthma sufferers ... their lifestyle. The woman described in the Annals article ...
(Date:9/29/2014)... the exposure to tar tended to be lower for ... Similarly, exposure to nicotine tended to be lower. , ... in several countries around the world. Previous studies have ... the smoke of these cigarettes are lower than those ... in the smoke are not necessarily linked to a ...
Breaking Biology News(10 mins):Risky metabolism 2Asthma symptoms kicking up? Check your exposure to air pollution 2Slim cigarette smokers not exposed to more harmful chemicals 2
... to grow, so does the demand for monitoring and labeling ... tweaked to make them more healthful or pest-resistant, but some ... and enforce regulations, scientists are reporting in ACS, journal ... modifications in one convenient, accurate test. Li-Tao Yang, ...
... work hard and spend enormous resources on the conservation ... optimally spent. One big problem is international legislation and ... or global networks. Zoo resources can be spent much ... after analyzing animal collections across the world,s zoos. ...
... of Jyvskyl in Finland have developed a novel method to ... to obtain new information on trafficking of viruses in cells ... opening inside cells. This new information is important for example ... published in the journal Proceedings of the National Academy ...
Cached Biology News:Scientists warn: Conservation work in zoos is too random 2Scientists warn: Conservation work in zoos is too random 3Gold nanoparticles help to develop a new method for tracking viruses 2Gold nanoparticles help to develop a new method for tracking viruses 3
(Date:10/2/2014)... BRIDGEWATER, N.J. , Oct. 2, 2014 /PRNewswire/ ... in synthetic biology, and Amneal Pharmaceuticals LLC ... volume in the U.S., today announced the formation ... a target active pharmaceutical ingredient (API).  Utilizing Intrexon,s ... collaboration is to develop a consistent, scalable, and ...
(Date:10/1/2014)...  Pressure BioSciences, Inc. (OTCQB: PBIO) ("PBI" or the ... of high pressure-based sample preparation systems to the life ... to present at the 2 nd  Global Life ... The Conference will take place at the Warsaw Stock ... Schumacher , President and CEO of PBI, will present ...
(Date:10/1/2014)... The participants committed to not only creating unique ... time adjusting, tweaking and testing virtual models and 3D ... judging. , “I enjoyed being involved as a judge,” ... entries showed a commendable range exploring the technical capabilities ... medium and the creativity of the contestants.” , Array ...
(Date:10/1/2014)... (PRWEB) October 01, 2014 Slone ... Clinical Therapeutics, Healthcare IT, and Laboratory Testing industries, reported ... positions at the director level and above from July ... to stay on top of rapid breakthroughs in diagnostics, ... many diagnostic companies have been forced to fold, consolidate, ...
Breaking Biology Technology:Intrexon and Amneal Expand Relationship with Second Product Collaboration 2Intrexon and Amneal Expand Relationship with Second Product Collaboration 3Pressure BioSciences, Inc. Invited to Present at the 2nd Global Life Sciences Conference in Warsaw, Poland 2Pressure BioSciences, Inc. Invited to Present at the 2nd Global Life Sciences Conference in Warsaw, Poland 3Pressure BioSciences, Inc. Invited to Present at the 2nd Global Life Sciences Conference in Warsaw, Poland 4Array Architects Challenges Staff to Create with 3D Printer 2Slone Partners Meets Growing Demand as Industry Focuses on Reimbursement & Regulation 2
... $15 million milestone payment, WILMINGTON, N.C., Feb. ... Takeda Pharmaceutical Company Limited,s new drug,application (NDA) for ... of type 2 diabetes, has been accepted for ... partnered with Takeda to develop the,compound., Under ...
... Kelly Named New Controller --, MADISON, N.J., Feb. 28 ... John C. Kelly to Vice President and,Controller, Wyeth, effective March ... after a 30-year career at Wyeth, including serving,as Vice President ... Wyeth in 2002, Mr. Kelly has handled a wide range ...
... LLC,( http://www.gene2drug.com ) -- the leading market research ... announces the publication of its,latest report, "Conferences & ... at scientific conferences and trade shows are an ... on investment (ROI),remains elusive for most vendors. This ...
Cached Biology Technology:PPD Confirms Takeda's NDA Filing of Alogliptin with U.S. Food and Drug Administration 2Wyeth Announces Executive Change in Finance Organization 2BioInformatics, LLC Studies Trade Show Exhibition Strategies in the Life Science Market 2BioInformatics, LLC Studies Trade Show Exhibition Strategies in the Life Science Market 3
Improves spot morphology and DNA binding to the slide resulting in increased hybridization signal. ID Clarifier: Optimized spotting solution for use with SigmaScreen APS Coated Slides for Microarrays...
... Humidity wells in the base hold 10 ... and probe hydration around the edges of ... risk of waterbath contamination. This chamber can ... or hybridisation ovens. Linkage: This CLS number ...
The Piezo Power MicroDissection (PPMD) system is designed for rapid isolation of single cells or small cell areas...
AC input: 50-60 Hz230 V...
Biology Products: