Navigation Links
Look at Mie!
Date:3/12/2010

focus when they realized the scope of the task, which involved analyzing five sets of gold particles ranging from 51 to 237 nanometers wide the "biologically relevant" sizes, Tcherniak explained.

Each set of particles was photographed with a scanning electron microscope and then analyzed for its absorption and scattering properties via single-particle photothermal imaging and laser dark-field scattering.

It was tedious, they admitted.

"When you need to find a particle 50 nanometers across on a sample that is 5-by-5 millimeters, you're looking for a needle in a haystack," Tcherniak said. Slaughter and Dominguez-Medina nodded in agreement and recalled a summer of long days required to categorize several hundred particles -- enough "to get all those points on the graph."

They used a couple of strategies to locate particles. One was to put micron-scale grid coordinates on the glass slide containing nanoparticle samples. "That let us know roughly where they were," Tcherniak said.

Another involved applying a bit of astronomy to their microscopy. They found themselves looking for "constellations" in the patterns of specks. "We started saying, 'Oh, that looks like a nose. Do we have a nose anywhere else?'" Slaughter said. "We were so tired; the names might not have been very good."

But their results are.

"Mie theory was around long before anyone knew about nanoparticles, so it's a neat thing to be able to test it," said Link of his students' work. "This is important because they really put together the building blocks that will enable scientists to look at more complex structures. This was not an easy job."


'/>"/>

Contact: Mike Williams
mikewilliams@rice.edu
713-348-6728
Rice University
Source:Eurekalert

Page: 1 2

Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/9/2015)... , July 9, 2015  Synaptics Inc. (NASDAQ: ... announced today that it will report financial results for ... July 30, 2015 after the close of market. The ... and investors at 2:00 p.m. PT (5:00 p.m. ET), ... To participate on the live call, analysts and ...
(Date:7/8/2015)... 2015 Summary Pancreatic cancer is the ... fatal, with a mortality rate of 10.9 deaths per ... cancer patients has highlighted a significant need for new ... met by the current market. A highly active ... varying molecule types and mechanisms of action, which provides ...
(Date:7/7/2015)... DUBLIN , June 30, 2015 ... ) has announced the addition of the ... their offering. To this date, fingerprint ... biometric technology and fingerprint sensors are well developed. ... capacitive sensing technology. The domain of ...
Breaking Biology News(10 mins):Synaptics to Report Fourth Quarter, Fiscal Year 2015 Results on July 30 2Frontier Pharma: Pancreatic Cancer - Identifying and Commercializing First-in-Class Innovation 2Frontier Pharma: Pancreatic Cancer - Identifying and Commercializing First-in-Class Innovation 3Worldwide Capacitive Fingerprint Sensors Patent Landscape Market Report 2015-2020 - Main IP Holders include Seiko Epson, AuthenTec, Sony and STMicroelectronics 2
... study of apex predators in the Pacific Ocean found ... previously thought, unknown relationships between other species, and the ... of these sea creatures. The field program, dubbed ... at 23 species from 2000-09 and included researchers from ...
... WI, JUNE 22, 2011 -- Vinyl chloride is a ... anaerobic conditions. These solvents are used in many industrial ... most encountered groundwater pollutants in industrialized countries. Groundwater is ... to determine if vinyl chloride can be further degraded ...
... by psychologists at the University of Toronto and Tufts University ... sexual orientation when looking at his face, when she is ... thoughts or a mating goal heightens a woman,s ability to ... not apparent when a woman is judging another female,s orientation," ...
Cached Biology News:Decade-long study of Pacific predators shows importance of biological 'hotspots' 2Decade-long study of Pacific predators shows importance of biological 'hotspots' 3Psychologists find link between ovulation and women's ability to identify heterosexual men 2
(Date:7/30/2015)... , July 30, 2015   GenoSpace , ... the interpretation and analysis of genomic and other ... has joined the company as Vice President ... http://photos.prnewswire.com/prnh/20150730/250931 "GenoSpace partners ... integrate, interpret, analyze and explore complex sets of ...
(Date:7/30/2015)... ... July 30, 2015 , ... Leading ... clinical study of its canine osteoarthritis stem cell product, currently under development for ... KS) and will be marketed in the US by Aratana. This product, termed ...
(Date:7/30/2015)... 2015 Ascendis Pharma A/S (Nasdaq: ... innovative TransCon technology to address significant unmet medical ... six-month Phase 2 study to evaluate the safety ... 53 treatment-naïve, pre-pubertal children with growth hormone deficiency, ... with the top-line results from our Phase 2 ...
(Date:7/30/2015)... NH (PRWEB) , ... July 30, 2015 , ... ... homogenizer for advanced fluid applications and designed for continuous operation up to 1500 ... and sterilization-in-place, ensuring safety, efficiency, and preventing toxic contamination. , The Pony™ NS2006L ...
Breaking Biology Technology:GenoSpace Introduces Matthew Fischer as Vice President of Sales and Marketing 2VetStem Biopharma Successfully Completes Large Milestone Efficacy Study for its Flagship Canine Osteoarthritis Stem Cell Product 2VetStem Biopharma Successfully Completes Large Milestone Efficacy Study for its Flagship Canine Osteoarthritis Stem Cell Product 3Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 2Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 3Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 4Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 5Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 6Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 7GEA Announces the Pony™ NS2006L… a Self-contained, High Pressure Lab Homogenizer for Product Development Ensuring Maximum Efficiency and Safety 2
... 2011 Conducting genetic profiles using microRNA can help ... also develop brain metastasis (BM), according to a study ... Research Institute (TGen). The study identified microRNA-328 as ... the spread of cancer to the brain in patients ...
... N.J., April 1, 2011 Ethicon, Inc., announced today ... treated with BIOPATCH® Protective Disk with CHG as part ... risk of intravascular catheter-associated infections in the United States. ... dressing is designated as a Category 1B recommendation. BIOPATCH® ...
... by Carnegie Mellon University chemist Krzysztof Matyjaszewski are using ... polymerization (ATRP), a widely used method of creating industrial ... 1 issue of Science , represents a breakthrough ... the ATRP process, which will allow for the creation ...
Cached Biology Technology:TGen and Scottsdale Healthcare researchers discover microRNA role in brain metastasis 2New CDC Guidelines for Prevention of Intravascular Catheter-Associated Infections Designate Chlorhexidine Gluconate-Impregnated Sponge as a Category 1B Recommendation Exclusively Based on Evidence Related to BIOPATCH® Protective Disk With CHG 2New CDC Guidelines for Prevention of Intravascular Catheter-Associated Infections Designate Chlorhexidine Gluconate-Impregnated Sponge as a Category 1B Recommendation Exclusively Based on Evidence Related to BIOPATCH® Protective Disk With CHG 3Carnegie Mellon researchers electrify polymerization 2Carnegie Mellon researchers electrify polymerization 3
... to reward the animal for foraging behavior.The Spatial ... built around a video camera, frame grabber, and ... fields at once and up to 6 moving ... records them, but also allows video replay of ...
... Feature Extraction Software reads and ... to prepare microarray data for ... * one 1-year license ... NFP/Academic accounts ,one CD-ROM containing ...
... Last innovation from Magnetofection technology, ... delivery system available. Simple, rapid and ... compatible and non toxic. Specifically designed ... gene silencing at very low doses ...
... DW4 liquid handling system from Molecular Devices ... in one instrument. The system handles a ... plate washing96-, 384- and 1536-welland is the ... DW4 has been optimized to dispense from ...
Biology Products: