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:6/26/2015)... SPRINGVILLE, Utah , June 26, 2015 ATL ... assemblies and devices with specialties in single use solutions, headquartered ... acquisition of MedConx, Inc. (a California ... , and San Jose, Costa Rica ). ... Costa Rica with ATL Technology,s existing ...
(Date:6/24/2015)... 2015 This report provides market analysis of ... years. It contains an analysis of the drivers, challenges, ... impact from the short, medium, and long term perspective ... market, and technology trends that currently, prevail in the ... authorities to efficiently manage the increasing marine traffic and ...
(Date:6/23/2015)... June 22, 2015 ... addition of the "Body-Worn Temperature Sensors Market ... and Forecast 2014 - 2020" report to ... analysis of the global body-worn temperature sensors market. ... segmented on the basis of types, care setting, ...
Breaking Biology News(10 mins):ATL Technology Announces Acquisition of MedConx, Inc. and Expanded Global Footprint 2Automatic Identification System Market by Class, by Platform, by Application and by Geography - Global Forecasts & Analysis to 2014 - 2020 2Body-Worn Temperature Sensors Market - Global Industry Analysis 2
... frequently arise between individuals from different cultures. But what ... another less so? A new international study led ... National Science Foundation,s Division of Behavioral and Cognitive Sciences ... and bridge the gaps between them. Published in ...
... Biodesign Institute at Arizona State University research team has ... producing low-cost, renewable biofuels from bacteria. The team ... byproduct recovery and conversion to biofuels easier and potentially ... in any biofuel production are harvesting the goodies and ...
... door in your backyard, a vacant lot next door ... the week of this year,s summer solstice, June 18-24, people ... natural environment as part of the first Nearby Nature GigaBlitz. ... at Carnegie Mellon University,s CREATE Lab, the GigaBlitz would involve ...
Cached Biology News:World-wide assessment determines differences in cultures 2World-wide assessment determines differences in cultures 3Green and lean: Secreting bacteria eliminate cost barriers for renewable biofuel production 2Green and lean: Secreting bacteria eliminate cost barriers for renewable biofuel production 3GigaBlitz will turn high-resolution images of nature into global inventory of organisms, habitats 2
(Date:6/26/2015)... ... June 26, 2015 , ... DNA ... subsidiary of OraSure Technologies, Inc. (Nasdaq: OSUR) today announced that it has awarded ... its Gut Microbiome Grant Program. The company has awarded its OMNIgene®•GUT ...
(Date:6/26/2015)... ... ... ReliantHeart, Inc. , an innovative supplier of advanced mechanical circulatory assist ... LVAD (HA5) to the 68th consecutive implant, there has been no evidence of de ... is referred to as de novo thrombus. De novo thrombus can hide under the ...
(Date:6/25/2015)... 2015 Research ... the addition of the  "2015 Market ... Diagnostics Industry: Oncogenes, Biochemical Markers, Lymphokines, ... Labs, POC Locations"  report to ... http://photos.prnewswire.com/prnh/20130307/600769) , A new ...
(Date:6/25/2015)... ... 25, 2015 , ... The American Brain Tumor Association announced ... Family Conference, Providing and Pursuing Answers: Advances in Research, Treatment and Care. The ... July 24-25, 2015. , “As advances in research accelerate the arrival of precision ...
Breaking Biology Technology:DNA Genotek Inc. Announces Recipients of Gut Microbiome Grant Program 2DNA Genotek Inc. Announces Recipients of Gut Microbiome Grant Program 3HeartAssist5® Remote Monitoring has alerted no patterns of de novo thrombus in 68 consecutive implants 2HeartAssist5® Remote Monitoring has alerted no patterns of de novo thrombus in 68 consecutive implants 3Analysis of the Global Cancer Diagnostics Industry 2015-2020: Oncogenes, Biochemical Markers, Lymphokines, GFs, CSFs, Hormones, Immunohistochemical Stains 2Analysis of the Global Cancer Diagnostics Industry 2015-2020: Oncogenes, Biochemical Markers, Lymphokines, GFs, CSFs, Hormones, Immunohistochemical Stains 3Nationally Recognized Brain Tumor Experts to Speak at American Brain Tumor Association Patient and Family Conference 2
... Sinai School of Medicine of New York University ... are integral in the development of atherosclerotic lesions, however ... of atherosclerotic plaque. This application note describes a protocol ... RT-PCR to selectively analyze RNA from foam cells of ...
... Key words: serotonin ... LEADseeker • SPA Imaging Beads , ... (5-hydroxytryptamine, 5-HT) is a regulator of neural transmission which induces its biological ... receptor is a subtype of the serotonin receptor that belongs to ...
... , ... • LEADseeker , ... organizations to continually increase screening throughput. Yet accuracy and sensitivity remain ... Multimodality Imaging System was developed to meet these demands by combining ...
Cached Biology Technology:Laser Capture Microdissection (LCM) for the Analysis of Macrophage Gene Expression from Atherosclerotic Lesions 2Laser Capture Microdissection (LCM) for the Analysis of Macrophage Gene Expression from Atherosclerotic Lesions 3Laser Capture Microdissection (LCM) for the Analysis of Macrophage Gene Expression from Atherosclerotic Lesions 4Laser Capture Microdissection (LCM) for the Analysis of Macrophage Gene Expression from Atherosclerotic Lesions 5Laser Capture Microdissection (LCM) for the Analysis of Macrophage Gene Expression from Atherosclerotic Lesions 6Laser Capture Microdissection (LCM) for the Analysis of Macrophage Gene Expression from Atherosclerotic Lesions 7Laser Capture Microdissection (LCM) for the Analysis of Macrophage Gene Expression from Atherosclerotic Lesions 8Laser Capture Microdissection (LCM) for the Analysis of Macrophage Gene Expression from Atherosclerotic Lesions 9Laser Capture Microdissection (LCM) for the Analysis of Macrophage Gene Expression from Atherosclerotic Lesions 10Laser Capture Microdissection (LCM) for the Analysis of Macrophage Gene Expression from Atherosclerotic Lesions 11The development of a serotonin 5-HT2C receptor-binding assay using the LEADseeker Multimodality Imaging System 2The development of a serotonin 5-HT2C receptor-binding assay using the LEADseeker Multimodality Imaging System 3The development of a serotonin 5-HT2C receptor-binding assay using the LEADseeker Multimodality Imaging System 4Use of the HitHunter EFC Chemiluminescent Detection Kits with LEADseeker Multimodality Imaging System 2Use of the HitHunter EFC Chemiluminescent Detection Kits with LEADseeker Multimodality Imaging System 3Use of the HitHunter EFC Chemiluminescent Detection Kits with LEADseeker Multimodality Imaging System 4
Polypropylene test tube racks, used in Thermo Forma's line of Test Tube Rack holders...
...
BD FastImmune EDTA Solution. Applications: Flow Cytometry Storage Temperature: Refrigerate(2 to 8C)...
Autoclavable, variable volumefitted w./ an anti-drip safety valve; borosilicate glass barrelprotected with transparentpolypropylene sleeve; spring-lock cursor design ensuresfine adjustment for exact ...
Biology Products: