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:9/16/2014)... years after the Hesperides vessel returned to Spain culminating ... have an increasingly clear picture of how the global ... the input of pollutants from the atmosphere is not ... most remote areas of the planet, and it is ... are presented this week in CSIC Residence for Researchers ...
(Date:9/16/2014)... . CRG researchers ... Journal of Cell Biology describes how Topo 2 ... , At this very moment thousands of our body,s cells ... the body repairs damaged tissues and regenerates others like skin ... "mitosis", during which the cell duplicates its genetic material and ...
(Date:9/16/2014)... Sept. 16, 2014  Cross Match Technologies, a ... announced today the launch of its Verifier ® ... identity of an individual using their secure credentials ... rapidly reads credential documents with embedded biometric data ... the biometric to a live scan of their ...
Breaking Biology News(10 mins):The Malaspina Expedition confirms that pollution reaches even the most remote areas of the ocean 2The Malaspina Expedition confirms that pollution reaches even the most remote areas of the ocean 3Unraveling cell division 2Unraveling cell division 3Cross Match Launches New Identity Management Handheld Solution 2
... ROCKVILLE, Md. -- Several members of the American Society ... or foreign associates of the U.S. National Academy of ... in original research. Three current ASPB members were ... Birchler , Curators Professor of Biological Sciences, University of ...
... Callaghan, a researcher at the Royal Swedish Academy of Sciences, ... and permafrost. "The changes we see are dramatic. ... deviate from the norm when compared with a longer term ... parts of the globe that is warming up fastest today. ...
... and Shinya Yamanaka, MD, PhD, have been elected as members ... in original scientific research. It is one of the highest ... States. They join 70 other scientists who will ... now has 40 current faculty members in the distinguished group. ...
Cached Biology News:A new research report shows effects of climate change in the Arctic are more extensive than expected 2A new research report shows effects of climate change in the Arctic are more extensive than expected 3UCSF scientists honored by National Academy of Sciences 2
(Date:9/15/2014)... Bioptigen announced today the availability of ... optical device metrology and pre-clinical ophthalmic research markets. ... Contact Lens Metrology is designed for non-destructive, non-contact, full ... IOL structures, and donor tissues. The metrology ... in a hydration bath (saline), automated segmentation of anterior ...
(Date:9/15/2014)... AUSTIN, Texas , Sept. 15, 2014 The ... changes in climate, says a new article published by the ... Ahmed , PhD, on climate change and its effects on ... part of an extensive study conducted by Dr. Ahmed in ... China and has implications for the future ...
(Date:9/15/2014)... Maryland , 15 de septiembre de 2014 ... se llevará a cabo del 12 al 18 de octubre. ... (PPTA) y de sus compañías miembro s, la ... la concienciación mundial en torno a la colección de fuentes ... donantes de plasma al salvar y mejorar las vidas ...
(Date:9/14/2014)... variety of ways, including by modifying the protein structure. ... form and perform no or even the "wrong" function: ... diseases such as Alzheimer,s, Parkinson,s or cystic fibrosis. Some ... other molecules of the same type and congregate into ... damage cells and tissues and make people ill. , ...
Breaking Biology Technology:Bioptigen Introduces Deep Imaging OCT System for Contact Lens Metrology 2Tea Taste and Quality Affected by Climate Change 2Tea Taste and Quality Affected by Climate Change 3Tea Taste and Quality Affected by Climate Change 4La International Plasma Awareness Week será una celebración para los donantes 2La International Plasma Awareness Week será una celebración para los donantes 3Measuring modified protein structures 2Measuring modified protein structures 3
... material that could become essential to efficient, environmentally ... advantage of graphene,s outstanding strength, light weight and ... wells. The Rice University lab of chemist ... Texas-based supplier of drilling fluids and subsidiary of ...
...  Kensey Nash Corporation (Nasdaq: KNSY ) today ... (Nasdaq: SPNC ) that they reached a ... product lines purchased from Kensey Nash in May 2008. ... payable to Kensey Nash.  As previously disclosed, the Company ...
... Sangui enters commercialization phase / Initial order of ... Tamaulipas has issued an initial order of Hemo2Spray, the Sangui ... product Scabremove both registered by the Mexican authorities in September ... the wound spray and Sangui management is positive that an ...
Cached Biology Technology:Functionalized graphene oxide plays part in next-generation oil-well drilling fluids 2Functionalized graphene oxide plays part in next-generation oil-well drilling fluids 3Mexican State of Tamaulipas Starts Training Doctors in Sangui Wound Management 2
Request Info...
Request Info...
Any form, any size, any number of mutageneses. ExonBio provides the best service with double sequecing to make sure the success of the mutagenesis....
Please email us with project details and we will respond within 24 hours to your query!...
Biology Products: