Navigation Links
When particles are so small that they seep right through skin
Date:9/30/2008

Scientists are finding that particles that are barely there tiny objects known as nanoparticles that have found a home in electronics, food containers, sunscreens, and a variety of applications can breech our most personal protective barrier: The skin.

The particles under scrutiny by Lisa DeLouise, Ph.D., are almost unfathomably tiny. The particles are less than one five-thousandth the width of a human hair. If the width of that strand of hair were equivalent to the length of a football field, a typical nanoparticle wouldn't even belly up to the one-inch line.

In the September issue of the journal Nano Letters, a team led by DeLouise at the University of Rochester Medical Center published a paper showing that nanoparticles pass through the skin of a living organism, a type of mouse commonly used as a model to study the damaging effects of sunlight.

It's the strongest evidence yet indicating that some nanoparticles are so small that they can actually seep through skin, especially when the skin has been damaged.

The health implications of nanoparticles in the body are uncertain, said DeLouise, an assistant professor of Dermatology and Biomedical Engineering and an expert on the properties of nanoparticles. Other scientists have found that the particles can accumulate in the lymph system, the liver, the nervous system, and in other areas of the body. In her study, she found that the particles accumulate around the hair follicles and in tiny skin folds.

DeLouise, a chemist, points out that her study did not directly address the safety of nanoparticles in any way. "We simply wanted to see if nanoparticles could pass through the skin, and we found that they can under certain conditions," she said.

DeLouise's work is part of a broad field known as nanomedicine that is a strategic area at the University of Rochester Medical Center. The area includes research, like hers, looking at the properties of nanopart
'/>"/>

Contact: Tom Rickey
tom_rickey@urmc.rochester.edu
585-275-7954
University of Rochester Medical Center
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. MU scientists go green with gold, distribute environmentally friendly nanoparticles
2. $2M grant awarded to University of Kentucky for research on nanoparticles and human health
3. New ORNL process brings nanoparticles into focus
4. Nanoparticles assemble by millions to encase oil drops
5. Environmental fate of nanoparticles depends on properties of water carrying them
6. Researchers mimic bacteria to produce magnetic nanoparticles
7. Mesothelin engineered on virus-like particles provides treatment clues for pancreatic cancer
8. Tiny dust particles from Asian deserts common over western United States
9. MIT sculpts 3-D particles with light
10. MIT: Remote-control nanoparticles deliver drugs directly into tumors
11. Worldwide atmospheric measurements will determine the role of atmospheric fine particles
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... millions of Americans to undertake jaunts into the countryside each ... longer within a century, according to new research. , Climate ... the United States as summer temperatures linger later into the ... Ecology and Biogeography . For instance, the paper birch ... New Hampshire could change color one to three weeks ...
(Date:9/18/2014)... colleagues have built the first smartphone app that ... behavioral trends. In other words, your smartphone knows ... don,t -- and how that affects you. , ... depression and loneliness to their academic performance, also ... for example, to monitor mental health, trigger intervention ...
(Date:9/18/2014)... seem to be cheerful, happy-go-lucky characters, so you might ... life. , In fact some dogs are distinctly ... Sydney shows. , "This research is exciting because ... objectively and non-invasively. It offers researchers and dog owners ... that changes," said Dr Melissa Starling, from the Faculty ...
Breaking Biology News(10 mins):Fall foliage season may be later, but longer on warmer Earth 2Fall foliage season may be later, but longer on warmer Earth 3Fall foliage season may be later, but longer on warmer Earth 4New Dartmouth smartphone app reveals users' mental health, performance, behavior 2New Dartmouth smartphone app reveals users' mental health, performance, behavior 3New Dartmouth smartphone app reveals users' mental health, performance, behavior 4Dogs can be pessimists too 2Dogs can be pessimists too 3
... Mich. A new study finds that African ancestry ... type of cancer that has fewer treatment options. ... found that, among women with breast cancer, 82 percent ... African-Americans were and 16 percent of white Americans were. ...
... crocodiles and navigating around massive submerged trees, a team ... pools of Cara Blanca, Belize, which were important to ... divers found fossilized animal remains, bits of pottery and ... underwater cave. [Click here to see a ...
... years ago when the American Society for Cell Biology (ASCB) ... This year over 7,000 scientists from throughout the world ... Dec. 11 to 15 for ASCB,s 50th Annual Meeting. ... research on the cell, ASCB,s conferences are the largest yearly ...
Cached Biology News:Study links African ancestry to high-risk breast cancer 2Extreme archaeology: Divers plumb the mysteries of sacred Maya pools 2Extreme archaeology: Divers plumb the mysteries of sacred Maya pools 3Cell biology society celebrates 50th 2
(Date:9/19/2014)... 2014 Cereal grain scientists, quality ... gather October 5–8, 2014, for the AACC International ... Center in Providence, Rhode Island. The comprehensive scientific ... food scientists, chemists, microbiologists, nutritionists, and those interested ... management. To date, 1,000 attendees have registered for ...
(Date:9/18/2014)... Washington, USA (PRWEB) September 18, 2014 ... Representatives of a bill designed to stimulate development and ... jobs is being praised by leaders of SPIE, ... bill, the Revitalizing American Manufacturing and Innovation (RAMI) Act, ... The bill’s authors have said they are optimistic that ...
(Date:9/18/2014)... 2014 A novel robotic system that ... is currently being tested as part of a biomedical ... Boston with the aim of determining if the robot, ... cancer biopsies faster, more accurate, less costly, and less ... the potential to deliver prostate cancer therapies with greater ...
(Date:9/18/2014)... On Tuesday, Secretary of Energy Ernest Moniz joined ... Lab Day on the Hill. The event highlighted several ... Durbin and Risch also formally launched the Senate National ... reach of the national labs as leaders in developing ... our nation's most pressing challenges. , "The national labs ...
Breaking Biology Technology:Latest Research on Cereal Grain Quality, Health Benefits and Food Production to be Presented During the AACC International Annual Meeting 2Latest Research on Cereal Grain Quality, Health Benefits and Food Production to be Presented During the AACC International Annual Meeting 3House passage of high-tech manufacturing bill is move toward stronger economy, say SPIE leaders 2House passage of high-tech manufacturing bill is move toward stronger economy, say SPIE leaders 3Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 2Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 3Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 4Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 5Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 6Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 2Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 3
... ATLANTA, Sept. 29, 2011 GeoVax Labs, Inc. (OTCQB/OTCBB: ... and fight Human Immunodeficiency Virus (HIV) infections, announces that ... to receive academic honors on September 26 and October ... Officer Harriet L. Robinson, PhD, was honored as a ...
... as a symbol of long-lasting love. But semiconductor makers ... of long-lasting micromachines if a new method developed at ... carving these tough, capable crystals proves its worth.* The ... in a diamond surface, yielding potential benefits in both ...
... PLC (AIM: GTL) today conducted its annual meeting in London, ... Henderson, the non-executive chairman of the U.S. based bio-refining company, ... "GTL is pleased to report that margins ... period ending September 30, 2011 closely tracked the seasonal margins ...
Cached Biology Technology:GeoVax Labs' CSO and Chairman Receive Academic Honors 2GeoVax Labs' CSO and Chairman Receive Academic Honors 3NIST polishes method for creating tiny diamond machines 2
CD69/CD3 50 tests...
PURA Immunogen: PURA (NP_005850, 183 a.a. ~ 293 a.a) partial recombinant protein with GST tag. Storage: -20 C, Avoid Freeze/Thaw Cycles *Available for distribution in the US only...
Rat polyclonal to Vitamin B3 ( Abpromise for all tested applications). Antigen: Chemical / Small Molecule, Vitamin B3 conjugated to BSA....
Goat polyclonal to Glucose Dehydrogenase ( Abpromise for all tested applications). Antigen: Glucose Dehydrogenase (Bacillus species)...
Biology Products: