Navigation Links
New holographic method could be used for lab-on-a-chip technologies
Date:12/2/2008

WEST LAFAYETTE, Ind. - Researchers at Purdue University have developed a technique that uses a laser and holograms to precisely position numerous tiny particles within seconds, representing a potential new tool to analyze biological samples or create devices using nanoassembly.

The technique, called rapid electrokinetic patterning, is a potential alternative to existing technologies because the patterns can be more quickly and easily changed, said mechanical engineering doctoral student Stuart J. Williams.

"It's potentially a very versatile tool," said Williams, who is working with doctoral student Aloke Kumar and Steven T. Wereley, an associate professor of mechanical engineering.

The research is based at the Birck Nanotechnology Center in Purdue's Discovery Park.

The students won a research award for their work in October during the 12th International Conference on Miniaturized Systems for Chemistry and Life Sciences in San Diego. Four young researcher poster awards were selected out of more than 220 posters judged in the contest. Findings also have been recently published in two peer-reviewed journals, Lab on a Chip and Microfluidics and Nanofluidics.

The experimental device consists of two parallel electrodes made of indium tin oxide, a transparent and electrically conductive material. The parallel plates were spaced 50 micrometers, or millionths of a meter, apart, equivalent to two-thousandths of an inch or about the diameter of a human hair. A liquid sample containing fluorescent beads was injected between the two electrodes, a laser in the near infrared range of the spectrum was shined through one of the transparent electrodes and a small electrical voltage was applied between the two electrodes.

"We send holograms of various patterns through this and, because they are holograms, we can create different shapes, such as straight lines or L patterns," Kumar said.

The particles in the liquid
'/>"/>

Contact: Emil Venere
venere@purdue.edu
765-494-4709
Purdue University
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Pitt researchers use fluorescence to develop method for detecting mercury in fish
2. Engineer to present leak-proof method for carbon dioxide storage at international conference
3. Cold Spring Harbor Protocols features organ and cell culture methods
4. New method provides panoramic view of protein-RNA interactions in living cells
5. Iowa State researcher develops new treatment method for canine eye diseases
6. Fingerprinting method tracks mercury emissions from coal
7. Deep biosphere research points to new methods for recovering petroleum
8. New lab manual focuses on essential methods for purifying and characterizing proteins
9. UC Riverside biochemists devise method for bypassing aluminum toxicity effects in plants
10. Commercial aquatic plants offer cost-effective method for treating wastewater
11. Radioactivity: Discover the lowest amounts with new methods
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New holographic method could be used for lab-on-a-chip technologies
(Date:8/28/2014)... Ga. The support of peer groups and ... breastfeeding programs, according to recent University of Georgia ... in the Athens-Clarke County area determined that role ... outcomes of mothers of infants. , "Mothers who ... successful at breastfeeding," said study co-author Alex Anderson, ...
(Date:8/28/2014)... Advocate and Senior Staff Attorney at the Electronic Frontier ... of biometric and mobile commerce experts set to speak ... Tampa, Florida on September 15, ... Rahman, Director, Technology and Strategy at Samsung, and Philippe de ... this year,s event is Mobility at the Crossroads of ...
(Date:8/28/2014)... (Maximizing Access to Research Careers) Program has announced ... of Sports Medicine,s Conference on Integrative Physiology of ... These awards are meant to promote the ... underrepresented groups into the mainstream of the basic ... young scientists at the American College of Sports ...
Breaking Biology News(10 mins):Breastfeeding study shows need for effective peer counseling programs 2Biometrics UnPlugged Welcomes the Electronic Frontier Foundation's Jennifer Lynch to the Mobility at the Crossroads of Commerce and Privacy Summit 2
... to control lens development in mice and humans is also ... as neurobiologists of the Max Delbrck Center for Molecular Medicine ... in which they had removed the c-Maf gene in the ... human carriers of a mutant c-Maf gene. People with such ...
... (February 20, 2012) Molecular biologist Ichiro Matsumoto, Ph.D., ... 2012 Ajinomoto Award for Young Investigators in Gustation, awarded ... an outstanding junior scientist who is an emerging leader ... made significant contributions to the understanding of the organization, ...
... on the rise and more than 120 countries now ... right to create a new, specialized global environmental agency, ... a keynote address to government ministers meeting Tuesday in ... Minister of Malaysia and former co-chair of the UN ...
Cached Biology News:The molecular basis of touch sensation 2Create effective new global environmental agency, ministers urged 2Create effective new global environmental agency, ministers urged 3
(Date:8/28/2014)... City, Ca. (PRWEB) August 28, 2014 ... E3 rating for an alcohol-based hand sanitizer, asks food ... harvest by comparing the hand sanitizer they’re currently using ... Spray . Hand hygiene is critical to fighting cross-contamination ... environment. Best Sanitizers believes there are key criteria ...
(Date:8/28/2014)... Spin-charge converters are important devices in spintronics, an ... charge of electrons but also on their spin ... transformation of electric into magnetic signals and vice ... Sinova from the Institute of Physics at Johannes ... the UK, Prague, and Japan, has for the ...
(Date:8/28/2014)... -- Next month, executives from clinical trial marketing firm BBK Worldwide ... Patient-Centered Clinical Trials 2014 , to be held at ... September 4-5. Patient recruitment experts Bonnie A. Brescia , ... share insights on the benefits of employing an effective patient ... media to mobile apps – can be used to drive ...
(Date:8/28/2014)... Calif. , Aug. 28, 2014  Armetheon, ... on developing novel mid- to late-stage cardiovascular drug ... million in its first round of financing. The ... Investments and Hercules Bioventures with participation from investors ... and pharmaceutical executive, Dr. Larry Hsu , ...
Breaking Biology Technology:Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 2Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 3A new, tunable device for spintronics 2A new, tunable device for spintronics 3BBK Worldwide Leads Sessions at Key September Events 2Armetheon Completes $7.0 Million Series A Financing 2Armetheon Completes $7.0 Million Series A Financing 3
... ,ThalesNano Inc. has announced that commencing in October, it ... Chemistry in Flow"., "Flow chemistry has already had ... Jones, Director of Product Management for,ThalesNano Inc. "Still, most ... to start. Enabling these people to run their own ...
... (Nasdaq: MATK ) --,Martek Biosciences Corporation ... sole source supply agreement with Grupo Ricap. Martek ... produced by Grupo Ricap in,Mexico. Grupo Ricap is ... & life,sARA(TM) will initially be available in infant,formula ...
... for immune enhancement during cold & flu season, ... in,Nutrition Reviews (Vol. 66(9):526-531) by Dr. Barry W. Ritz, ... shown,how AHCC impacts the immune response against a number ... from in vivo studies evaluating,the effect of AHCC supplementation ...
Cached Biology Technology:World Leader in Bench Top Flow Chemistry Instruments ThalesNano, Inc. Introduces an 'Industry First' Seminar Series 2Martek to be the Sole Source Supplier of DHA and ARA for Infant Formulas Produced By Grupo Ricap 2Research Shows How AHCC(R) May Help Fight Flu and Other Infectious Agents 2
...
Normal human serum collected off the clot from healthy normal humans. Each donor unit is negative for anti-HIV 1&2, HIV-Ag, HCV, and HBsAg by FDA required tests...
Normal human AB serum, pooled...
sterile filtered, off the clot, all male donors, Total Protein: 4.5 to 8.5 g/dl...
Biology Products: