(Press-News.org) (Santa Barbara, Calif.) –– Precision measurement in the world of nanoparticles has now become a possibility, thanks to scientists at UC Santa Barbara.
The UCSB research team has developed a new instrument capable of detecting individual nanoparticles with diameters as small as a few tens of nanometers. The study will be published on line this week by Nature Nanotechnology, and appear in the April print issue of the journal.
"This device opens up a wide range of potential applications in nanoparticle analysis," said Jean-Luc Fraikin, the lead author on the study. "Applications in water analysis, pharmaceutical development, and other biomedical areas are likely to be developed using this new technology." The instrument was developed in the lab of Andrew Cleland, professor of physics at UCSB, in collaboration with the group of Erkki Ruoslahti, Distinguished Professor, Sanford-Burnham Medical Research Institute at UCSB.
Fraikin is presently a postdoctoral associate in the Marth Lab at the Sanford-Burnham Medical Research Institute's Center for Nanomedicine, and in the Soh Lab in the Department of Mechanical Engineering at UC Santa Barbara.
The device detects the tiny particles, suspended in fluid, as they flow one by one through the instrument at rates estimated to be as high as half a million particles per second. Fraikin compares the device to a nanoscale turnstile, which can count –– and measure –– particles as they pass individually through the electronic "eye" of the instrument.
The instrument measures the volume of each nanoparticle, allowing for very rapid and precise size analysis of complex mixtures. Additionally, the researchers showed that the instrument could detect bacterial virus particles, both in saline solution as well as in mouse blood plasma.
In this study, the researchers further discovered a surprisingly high concentration of nanoparticles present in the native blood plasma. These particles exhibited an intriguing size distribution, with particle concentration increasing as the diameter fell to an order of 30 to 40 nanometers, an as-yet unexplained result.
INFORMATION:
New instrument keeps an 'eye' on nanoparticles
2011-03-07
[Attachments] See images for this press release:
ELSE PRESS RELEASES FROM THIS DATE:
Sleepy connected Americans
2011-03-07
About two-thirds of baby boomers (67%) and generation X'ers (63%) and half of generation Z'ers (50%) and generation Y'ers (49%) watch television every night or almost every night within the hour before going to sleep.
"Artificial light exposure between dusk and the time we go to bed at night suppresses release of the sleep-promoting hormone melatonin, enhances alertness and shifts circadian rhythms to a later hour—making it more difficult to fall asleep," says Charles Czeisler, PhD, MD, Harvard Medical School and Brigham and Women's Hospital. "This study reveals that ...
'Fat Tuesday' is 'Phat Newsday' at BrianGeary.com
2011-03-07
BrianGeary.com will celebrate 'Fat Tuesday' with a 'Phat Newsday' on March 8th, 2011. The tradition of Mardi Gras will be celebrated by allowing clients to fatten their wallets with a 50% savings on news releases. Long-time and first-time clients are invited to take advantage of this savings before it is swept away at midnight (Pacific Standard Time).
"It's easy to get so caught up in Carnival," explains spokesman Brian Geary, "that businesses postpone their news announcements until the festivities are over." This often contributes to an anemic pipeline and subsequent ...
Yara Annechiarico of At Home with Yara Realty
2011-03-07
For those who are asking for my housing market predictions want me to reassure them that their homes will soon be worth again what they were worth in recent past years.
Unfortunately, when it comes to making housing market predictions, what I'm hearing from the National Association of Realtor's is that there are no easy answers Short sales & Loan modifications are still a painful process; Foreclosures are going to continue at these levels for awhile & Unemployment level are still on an average high.
Over all this is still the best time to buy if you're able to considering ...
National Juris Solutions Has Advanced Software
2011-03-07
National Juris Solutions has developed state of the art legal software that provides practice management, time/billing, and accounting - all designed specifically for law firms. With one program, you'll meet all your case management, document handling, messaging, time recording, legal billing, and law firm accounting requirements. Duplication of data entry is eliminated and entry errors are significantly reduced, dramatically lowering your malpractice risks and giving you more time to spend on billable tasks.
No need for a separate calendaring, contact, case, and legal ...
Max Cannon's Local MugSHOTS Hits 3 Million Copies Sold
2011-03-07
Like the fast food industry leader posting its 1 millionth hamburger, CrimePAY$ is announcing its 3 millionth publication of Local MugSHOTS sold. The $1 tabloid contains mug shots, wanted fugitives, sex offenders, missing persons and inmate status for criminals in the local territory in which the publication is sold. Each local distributor works closely with law enforcement agencies; the paper targeted to their local area in hopes someone may recognize a face, collect a reward, find a missing person or solve a crime.
In 2001 Max Cannon was publishing a free "waiting ...
Education in America: Homeschooling on the Rise
2011-03-07
The Old Schoolhouse Magazine, LLC Boasting an increase of 74 percent since 1999 and now in its fourth decade, the modern homeschooling movement is gaining followers at an astonishing rate. Homeschool, for the most part an unfamiliar term only thirty years ago when the movement began, has become a household word. U.S. educators from both public and private school arenas are very much aware of the movement and its impact, and today popular media frequently make mention of homeschoolers,from characters in CBS's #1 show, NCIS, to homeschool grads who appear as contestants on ...
Virtual Employment gives new hope to the Unemployed. Faking a job reference.
2011-03-07
The Reference Store sells "Virtual" job references to the public. Men and women that face barriers to employment may use a reference service to help minimize or even eliminate these barriers. When its clients apply for jobs, they list one of The Reference Store's "Virtual" companies as their current or former employer. These unsuspecting employers then call these virtual companies and speak to a live virtual human resource manager.
http://TheReferenceStore.com
There is no clear profile as to who might use a virtual reference service. Clients range from business ...
The Facts About Aspergers on NBC Show Parenthood
2011-03-07
On this week's episode of parenthood Adam and Kristina (parents) try to explain Asperger's to their son Max. This issue was forced by Max overhearing a conversation recently where it was mentioned that he had Aspergers.
According to Dave Angel (founder of The Parenting Aspergers Community) âEURœThis is a very real life situation for many parents, who often struggle to know what to say, how to say it, and when to do so.âEUR
What to say - All children with Aspergers need to know of their diagnosis, so they can begin to understand and make sense of the various things ...
PGM Enhances Medical Billing Services and Implements 100% Cloud Based Computing
2011-03-07
PGM announced today their commitment to enhance the quality of medical billing services it provides to clients. A longtime advocate of Remote Access Technologies (point-to-point T1, direct VPN) PGM announced a new strategy with the introduction of several new servers running on Virtual platforms. One of the very best examples of how cloud computing is used to benefit PGM clients is it ability to deliver remote desktops to a large number of users. A desktop delivered from the cloud (as a Service) can provide immediate global network access from the variety of devices being ...
Consumers can make good Savings ready for the Summer Sports Season
2011-03-07
Savvy & Active Sportswear Shoppers can certainly find great deals Ready for this year's Sporting Season activities
Popular coupon code site VoucherBuddy.co.uk has released some top deals for the hottest sportswear and equipment from a lot of the country's most recognized retailers. Competitive sports are to be high on the agenda this particular season primarily due to the high profile events on the agenda for next year, the major one indeed being the 2012 Olympic Games together with the recent successes during the Cricket season.
Here are several of the prime promotions ...