Navigation Links
Purifying nanorods: Big success with tiny cleanup
Date:9/22/2008

HOUSTON, Sept. 22, 2008 -- Chemists at Rice University have discovered a novel method to produce ultra-pure gold nanorods -- tiny, wand-like nanoparticles that are being studied in dozens of labs worldwide for applications as broad as diagnosing disease and improving electronic viewscreens.

"The content of high-aspect-ratio gold nanorods produced by today's best synthetic methods is only about 20 percent," said lead researcher Eugene Zubarev, assistant professor of chemistry at Rice. "A nanoparticle's shape plays a crucial role in determining many of its physical and chemical properties, so when four out of five particles in a batch are the wrong shape, it's a tremendous impediment to practical applications and commercialization."

Zubarev and graduate student Bishnu Khanal's new purification method filters more than 99 percent of impurities from gold nanorods. The research is available online and will appear in the Sep. 25 issue of the Journal of the American Chemical Society. It's an example of the sort of processing and synthesis methods that the federal government called for last year in a key report that examined the economic potential of nanotechnology.

Nanotechnology refers to a set of tools and methods that scientists use to see, measure and control matter with exquisite control, sometimes moving just one atom at a time. By building materials from the bottom up, at the molecular level, scientists can tailor particles that interact in precise ways with living cells, light waves, drugs and other chemicals. The word nanotechnology refers to the nanometer, a unit of length equal to one-billionth of a meter.

The nanorods studied by Zubarev and Khanal are about 25 nanometers in diameter and about 250 nanometers long. In comparison, a single gold atom is only about one third of a nanometer in diameter. Thus, the cross-section of each nanorod is made of just a few thousand gold atoms. Because of their long, narrow shape
'/>"/>

Contact: Jade Boyd
jadeboyd@rice.edu
713-348-6778
Rice University
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Possible new approach to purifying drinking water
2. Tengion Featured as Model of Innovation and Success at 35th Anniversary Celebration of the National Venture Capital Association
3. ESBATech Announces Successful Completion of Phase I Clinical Study for Lead Antibody Fragment in Ophthalmic Indications
4. Neptune Technologies successfully completes up to $8.5 million debt financing with Desjardins Group
5. SAFC Hitech(TM) Successfully Demonstrates Device-Quality GST Precursors For Phase Change Memory Applications
6. CoreValve Successfully Treats the First Pacific Rim Patients with Its ReValving System for Percutaneous Aortic Valve Replacement : Australia/New Zealand Regulatory-Cleared Evaluation Registry is Expected to Lead to Market Clearance for These Countries
7. Spherics, Inc. Successful Bidder May Make MHRA Submission
8. Spherics, Inc. Successful Bidder May Make NDA Submission
9. Renowned NJ-Based Video Assisted Thoracic Surgery (VATS) Team Completes 5,000th Successful Procedure
10. Cantel Medical Announces Management Succession at Crosstex Healthcare Disposables Subsidiary
11. Senesco Technologies Announces Successful Completion of First Milestone Related to Agreement with Bayer CropScience
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/28/2015)... 2015 Deerfield Management Company, L.P. today announced ... which will invest in groundbreaking advancements in science that ... and orphan diseases. The venture capital fund will also ... developed and improve the way healthcare is delivered to ... healthcare-focused venture funds in the sector, will donate all ...
(Date:7/28/2015)... 28, 2015  Moerae Matrix Inc. announced today ... trial with MMI-0100, a first-in-class inhibitor of MAPKAP ... pulmonary disorders characterized by inflammation and fibrosis.  The ... , is a double-blind, two-way cross-over design ... and tolerability of MMI-0100 when given via inhalation ...
(Date:7/28/2015)... , July 28, 2015 /PRNewswire/ - Aeterna Zentaris ... announced that it has granted to German life ... the development and commercialization of biotechnology (collectively, the ... recombinant oral allogenic tumor vaccine technology (the "Technology"), ... prostate cancer which is ready to enter a ...
(Date:7/28/2015)...  Faced with increasing challenges such as costly ... symptomatic, the global healthcare industry today is gradually ... curing or significantly changing the course of a ... regenerative medicine as a viable alternative. ... health with the potential to resolve unmet medical ...
Breaking Biology Technology:Deerfield Launches $550 Million Healthcare Venture-Capital Fund 2Deerfield Launches $550 Million Healthcare Venture-Capital Fund 3Moerae Initiates Lipopolysaccharide (LPS) Challenge Study of Inhaled MMI-0100 for Pulmonary Disease Following Encouraging Safety and Tolerability Observed in Single Ascending Dose Phase 1 Study 2Aeterna Zentaris Grants Option to Develop and Commercialize Oral Allogenic Cancer Vaccine Technology 2Aeterna Zentaris Grants Option to Develop and Commercialize Oral Allogenic Cancer Vaccine Technology 3Stem Cell Therapy to Redefine Regenerative Medicine, says Frost & Sullivan 2Stem Cell Therapy to Redefine Regenerative Medicine, says Frost & Sullivan 3Stem Cell Therapy to Redefine Regenerative Medicine, says Frost & Sullivan 4Stem Cell Therapy to Redefine Regenerative Medicine, says Frost & Sullivan 5
... Anca Copaescu, then a second-year MBA in the University of ... Burrill Technology Business Plan Competition, she knew she wanted to ... though the money definitely got her attention. It was the ... of her deepest dreams. "Even as a child growing up ...
... , ,Its a strategy, process and technology ... across the entire spectrum of local, state, national, and ... life sciences and information technology. We can help our ... tourism, manufacturing, and agriculture to operate in real- time. ...
... most common question Im asked is, Why wont angels invest in ... 90+% of the entrepreneurs asking this question. The irony is that ... though it isnt the answer they are expecting. The less ... is serious and problematic. , , Angels vs. angel networks ...
Cached Biology Technology:Romanian Student Leverages Burrill Competition to Accomplish Her Dream 2Romanian Student Leverages Burrill Competition to Accomplish Her Dream 3Real-Time Economy: Part 2 2What Angel Networks Want 2What Angel Networks Want 3What Angel Networks Want 4What Angel Networks Want 5
(Date:7/27/2015)... 27, 2015  Synaptics Inc. (NASDAQ: SYNA ... today announced that Huawei has selected the Synaptics ... its stylish smartwatch. Huawei chose the state-of-the-art ClearPad ... power and highly responsive human interface qualities such ... also required a classic round watch face and ...
(Date:7/27/2015)... 27, 2015   Zynx Health ™, the ... improvement solutions, today announced that its ZynxCarebook ... on Android smartphones and tablets. With this expansion, ... can use ZynxCarebook to securely exchange messages and ... care transitions to other care settings, and improve ...
(Date:7/23/2015)... July 23, 2015 Aware, Inc. (NASDAQ: AWRE ... reported financial results for its second quarter ended June 30, ... 2015 was $4.5 million, a decrease of 33% compared to ... in the second quarter of 2015 was $0.3 million, or ... $0.04 per diluted share, in the same period a year ...
Breaking Biology News(10 mins):Synaptics Touchscreen Solution Powers New Huawei Watch 2Synaptics Touchscreen Solution Powers New Huawei Watch 3Zynx Health Adds Android Device Support to ZynxCarebook Solution 2Zynx Health Adds Android Device Support to ZynxCarebook Solution 3Aware, Inc. Reports Second Quarter 2015 Financial Results 2Aware, Inc. Reports Second Quarter 2015 Financial Results 3Aware, Inc. Reports Second Quarter 2015 Financial Results 4Aware, Inc. Reports Second Quarter 2015 Financial Results 5Aware, Inc. Reports Second Quarter 2015 Financial Results 6
... discovered the presence of functional ion channels in human ... electrical wires and permit ESCs, versatile cells that possess ... the body, to conduct and pass along electric currents. ... channels in implanted cells, derived from stem cells, they ...
... pathogenic fungi as model systems for understanding fungal diseases, ... offers insight into how carbon dioxide (CO2) governs the ... different environments and invade the human body, and they ... utilize evolutionarily conserved enzymes to control the growth and ...
... medieval Europe ?to fade from the scene? By the ... The reason seems to be, say researchers at the ... a far more deadly disease, overtook leprosy, killing millions ... examination of DNA from human remains from the ancient ...
Cached Biology News:Stem cells' electric abilities might help their safe clinical use 2CO2 sensing proves critical for fungal pathogens to adapt to life in air and human hosts 2CO2 sensing proves critical for fungal pathogens to adapt to life in air and human hosts 3Once-dreaded leprosy 'replaced' by tuberculosis, say researchers 2
Anti-CoralHue Dronpa Green Monoclonal Antibody Research Focus: cell surface antigens Storage: -20C Shipping Temperature: +4C...
Sheep polyclonal to Methaqualone ( Abpromise for all tested applications). Antigen: Methaqualone(5') conjugated to BSA...
... polyclonal to BRF2 Immunogen Synthetic peptide: ... of Human BRF2. Reactivity / Specificity ... species. Background Information BRF2 is one ... III transcription factor complex required for transcription of ...
Anti-Kusabira Orange Monoclonal Antibody Description: 100 g Research Focus: tag Storage: -20C Shipping Temperature: 4C...
Biology Products: