Navigation Links
Making a gem of a tiny crystal
Date:11/27/2013

dicted computationally and realized experimentally."

To achieve a self-assembling single crystal in the lab, the research team reports taking two sets of gold nanoparticles outfitted with complementary DNA linker strands. Working with approximately 1 million nanoparticles in water, they heated the solution to a temperature just above the DNA linkers' melting point and then slowly cooled the solution to room temperature, which took two or three days.

The very slow cooling process encouraged the single-stranded DNA to find its complement, resulting in a high-quality single crystal approximately three microns wide. "The process gives the system enough time and energy for all the particles to arrange themselves and find the spots they should be in," Mirkin said.

The researchers determined that the length of DNA connected to each gold nanoparticle can't be much longer than the size of the nanoparticle. In the study, the gold nanoparticles varied from five to 20 nanometers in diameter; for each, the DNA length that led to crystal formation was about 18 base pairs and six single-base "sticky ends."

"There's no reason we can't grow extraordinarily large single crystals in the future using modifications of our technique," said Mirkin, who also is a professor of medicine, chemical and biological engineering, biomedical engineering and materials science and engineering and director of Northwestern's International Institute for Nanotechnology.

The title of the paper is "DNA-mediated nanoparticle crystallization into Wulff polyhedra."

In addition to Mirkin and Olvera de la Cruz, authors of the paper are Evelyn Auyeung (first author), Ting I. N. G. Li, Andrew J. Senesi, Abrin L. Schmucker and Bridget C. Pals, all from Northwestern.


'/>"/>

Contact: Megan Fellman
fellman@northwestern.edu
847-491-3115
Northwestern University
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Making electrical contact along 1-D edge of 2-D materials
2. ChemAxon Major Software Release brings New Desktop, Web and Visualization Applications to Power Chemistry Decision Making
3. Computational Analysis in Clinical and Preclinical Decision-Making, new webinar hosted by Xtalks
4. Advancing Preclinical Predictions, Making Faster Clinical Decisions with Cancer Models and Preclinical Imaging - World Pharma Congress this June in Philadelphia
5. Making cancer less cancerous
6. Campbell Alliance to Release New Forward-Looking Industry Report on Deal-Making Trends at the 2013 BIO International Convention
7. Engineer making rechargeable batteries with layered nanomaterials
8. 2012 Battalia Winston Survey Finds Corporate Holiday Parties are Making a Comeback
9. Making renewable viable
10. Making microscopic machines using metallic glass
11. Butamax Granted Core Patent for Making Biobutanol and Distillers Grains; Offers Producers Efficient, Low-Cost Production of Biobutanol
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/27/2015)... The fully automated supercritical fluidic ... sequentially analyze up to 48 samples utilizing automatic ... of targets by mass spectrometry. , The ... measurement requirements of a wide range of applications, ... and search for disease biomarkers, additives in forming ...
(Date:2/27/2015)... 2015 Cytokinetics, Incorporated (Nasdaq: CYTK) announced ... with patients and health care advocates in the United ... Day®. Rare Disease Day is dedicated to elevating ... the special challenges faced by patients with rare diseases ... proud to stand alongside patients and caregivers representing the ...
(Date:2/26/2015)... N.J. , Feb. 26, 2015 On ... and its affiliated companies, Wilentz, Goldman & Spitzer, ... trade secrets lawsuit against Genewiz Inc. in excess of ... and utilized GenScript,s trade secrets, and that it improperly ... entered an order denying motions for judgment notwithstanding the ...
(Date:2/26/2015)... 26, 2015   Regulus Therapeutics Inc . (NASDAQ: ... discovery and development of innovative medicines targeting microRNAs, today ... and Chief Executive Officer of Regulus, will present a ... Annual Healthcare Conference on Wednesday, March 4, 2015 ... at the Boston Marriott Copley Place.  ...
Breaking Biology Technology:Shimadzu Corporation Launches Nexera UC - The World’s Foremost Unified Chromatography System 2Shimadzu Corporation Launches Nexera UC - The World’s Foremost Unified Chromatography System 3Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 2Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 3Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 4Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 5Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 6Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 2Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 3Regulus to Present at Cowen and Company 35th Annual Healthcare Conference 2Regulus to Present at Cowen and Company 35th Annual Healthcare Conference 3
... DNDN ) today announced that management will participate ... Life Sciences Conference Grand Hyatt New York ... The presentation will be audio webcast live and available ... Corporation is a biotechnology company whose mission is to,target ...
... Sept. 18 Premier Research Group plc (AIM:,PRG) ... its Vice President,Global Human Resources. Mr. Keenen will ... activities related to maximizing the,effectiveness of Premier Research,s ... strategy. Dr. Troy McCall, COO, commented: "We ...
... places Bioscrypt,s fingerprint reader on biometrics access control ... approved products list for airports, ... a,leading provider of enterprise access control technology, today announced,that its ... (TSA) and placed on the TSA,s "Biometrics for,Access Control" Qualified ...
Cached Biology Technology:Premier Research Appoints Global Head of Human Resources 2Bioscrypt's V-Station MIFARE Placed on Transportation Security Administration's Qualified Products List 2Bioscrypt's V-Station MIFARE Placed on Transportation Security Administration's Qualified Products List 3
(Date:2/12/2015)... 12, 2015 NXT-ID, Inc. (NASDAQ: ... biometric authentication company focused on the growing mobile commerce ... 62/113114 for DISTRIBUTED METHOD AND SYSTEM TO ... patent further establishes NXT-ID,s position in the emerging "Internet ... the ability for multiple devices to collaborate with one ...
(Date:2/9/2015)... 2015  Lintec of America recently announced an exclusive ... (CNT) macrostructures, including sheets, yarns and ribbons, developed at ... Leveraging the vast industrial resources of the global Lintec ... Lintec of America is forming the Nano-Science and Technology ... focusing on scaling up the manufacturing and commercialization of ...
(Date:2/5/2015)... Epic Sciences , a precision diagnostics company dedicated to improving ... , Ph.D., president and CEO, is scheduled to present at ... Valley, which is taking place at the Computer History Museum ... 26-28, 2015. Dr. Prahalad will give a ... Epic Sciences was a finalist in the PMWC,s Most Promising ...
Breaking Biology News(10 mins):NXT-ID Patents Collaborative Services to Enable the "Internet of Things" 2NXT-ID Patents Collaborative Services to Enable the "Internet of Things" 3Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 2Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 3Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 4Epic Sciences to Present at Personalized Medicine World Conference 2015 on the Use of Circulating Tumor Cells as Cancer Biomarkers 2
... their way, biological research may soon be transformed by a ... into individual cells without harm to the host. Welcome to ... medicine in which light-based devices lasers and light-emitting diodes ... and influence of living cells. The team described ...
... Silicon, the material of high-tech devices from computer chips to ... applications. The coating "passivates" the material, tying up loose atomic ... But this passivation process consumes a lot of heat and ... that can be added to the devices. Now a ...
... Institute researchers have identified a previously unrecognized layer of ... undesirable white fat cells. When this regulation is disrupted, ... or mature from their precursors. "We,re trying to ... make fat cells," says Whitehead Founding Member Harvey Lodish, ...
Cached Biology News:Light-emitting bioprobe fits in a single cell 2Light-emitting bioprobe fits in a single cell 3Light-emitting bioprobe fits in a single cell 4A cooler way to protect silicon surfaces 2A cooler way to protect silicon surfaces 3Long noncoding RNAs control development of fat cells 2
Takara's Mutan-Super Express Km Kit is designed to achieve site-directed mutagenesis in just one day. It is based on Oligonucleotide-directed Dual Amber (ODA) method, using the advantages of LA (Long...
...
...
Newborn Calf Serum US Origin...
Biology Products: