Navigation Links
Shaping the future of nanocrystals
Date:8/22/2014

a transmission electron microscope (TEM) for an extended period of time, enabling in situ observations of single nanoparticle growth trajectories.

"With the liquid cells, we're able to use TEMs to observe the growth of nanocrystals that remarkably resemble nanocrystals synthesized in flasks," Zheng says. "We found that the growth rates of all low index facets are similar until the {100} facets stop growing. The {110} facets will continue to grow until they reach two neighboring {100} facets, at which point they form the edge of a cube whose corners will be filled in by the continued growth of {111} facets. The arrested growth of the {100} facets that triggers this process is determined by ligand mobility on the {100} facets, which is much lower than on the {110} and {111} facets."

For their observations, Zeng and her collaborators were able to use several of the TEMs at Berkeley Lab's National Center for Electron Microscopy (NCEM), a DOE Office of Science user facility, including the TEAM 0.5 instrument, the world's most powerful TEM. In addition, they were able to use a K2-IS camera from Gatan, Inc., which can capture electron images directly onto a CMOS sensor at 400 frames per second (fps) with 2K-by-2K pixel resolution.

"The K2-IS camera can also be configured to capture images at up to 1600 fps with appropriate scaling of the field of view, which is critical for observing particles that are moving dynamically in the field of view," says lead author Liao, a member of Zheng's research group. "The elimination of the traditional scintillation process during image detection results in significant improvement in both sensitivity and resolution. High resolution imaging is also facilitated by the thin silicon nitride membranes of our liquid cell window, which is about 10 nanometers thick per membrane."

The lower ligand mobility and arrested growth of selected facets experimentally observed by Zheng and Liao, were supported by ab
'/>"/>

Contact: Lynn Yarris
lcyarris@lbl.gov
510-486-5375
DOE/Lawrence Berkeley National Laboratory
Source:Eurekalert  

Page: 1 2 3 4

Related biology technology :

1. Creative Entrepreneur is Shaping Affordable Health Care Alternatives
2. New 3-D transistors promising future chips, lighter laptops
3. Arteriocyte Takes the Lead in Promoting Building Future Pipeline of Women in STEM Career Fields
4. Discovery of a dark state could mean a brighter future for solar energy
5. Palm Beach Residents to Learn How the Future of Regenerative Medicine Will Combat Aging
6. The future of aerospace takes off in Montreal
7. Quantum dots brighten the future of lighting
8. CAS Names 2012 SciFinder® Future Leaders in Chemistry Program Participants
9. Tom Karagiannis, Ph.D. Awarded Future Fellowship by Australian Research Council (ARC)
10. Future memory
11. Epigenomics, Present and Future Applications for Pharmaceuticals and Diagnostics: Twease.org
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Shaping the future of nanocrystals
(Date:5/27/2015)... May 27, 2015  RXi Pharmaceuticals Corporation (NASDAQ: ... discovering and developing innovative therapies primarily in the ... on the status of the Company,s Series A ... Logo - http://photos.prnewswire.com/prnh/20130917/NE80755LOGO ... 21 shares of Series A Preferred Stock and ...
(Date:5/26/2015)... and BELLINGHAM, Washington, USA (PRWEB) May 26, 2015 ... signed a formal partnership with the Max Planck ... for Extreme and Quantum Photonics. The center will link ... field of photonics, and will be only the third ... of SPIE, the international society for optics and ...
(Date:5/26/2015)... Rialto, CA (PRWEB) May 26, 2015 ... devices and solutions in the human and animal ... company’s annual Vetericyn® Future Innovators of Agriculture College ... high school senior who exhibits a passionate commitment ... positions. , This year’s winners, Alexis Pedrow ...
(Date:5/26/2015)... , May 26, 2015  Sangamo BioSciences, Inc. (NASDAQ: ... president and CEO, will provide an update on the progress ... overview of the company,s business strategy at 1:30pm ET on ... Conference. The conference is being held in New ... webcast live and may be accessed via a link on ...
Breaking Biology Technology:RXi Pharmaceuticals Provides an Update on Series A and Series A-1 Preferred Stock 2RXi Pharmaceuticals Provides an Update on Series A and Series A-1 Preferred Stock 3Third Max Planck Centre in North America Inaugurated at University of Ottawa 2Third Max Planck Centre in North America Inaugurated at University of Ottawa 3Innovacyn Announces Winners Of This Year’s Vetericyn® College Scholarship Award 2Innovacyn Announces Winners Of This Year’s Vetericyn® College Scholarship Award 3Sangamo BioSciences Announces Presentation At The Jefferies 2015 Global Healthcare Conference 2
... Jan. 11 Maxygen, Inc.,(Nasdaq: MAXY ), ... protein drugs, today announced that it will present ... on Thursday,January 17, 2008 at 7:45 a.m. Eastern ... A live webcast of the presentation can be,accessed ...
... - Vasogen Inc.,(NASDAQ: VSGN ; TSX:VAS), a biotechnology ... technologies targeting the chronic inflammation,underlying cardiovascular and neurological ... on Wednesday, January 16, 2008. A conference,call will ... management will,provide a Company update and discuss year-end ...
... (NYSE: CRY ),a biomaterials, medical device and tissue ... a lawsuit will be filed against it in,the Superior ... The lawsuit concerns an individual who contracted an ... 2006. Meniscal,transplants are commonly used for patients with significant ...
Cached Biology Technology:Vasogen to Conduct Year-end 2007 Conference Call 2Vasogen to Conduct Year-end 2007 Conference Call 3Vasogen to Conduct Year-end 2007 Conference Call 4CryoLife Responds to Inaccurate Assertions from Plaintiff's Attorney 2CryoLife Responds to Inaccurate Assertions from Plaintiff's Attorney 3
(Date:4/20/2015)... The announcement comes as demand ... Management (GRM), Ireland,s foremost records management ... built up an impressive track record of clients within the ... the records management sector in Dubai . ... staffbase and employ a further eight staff members at its ...
(Date:4/13/2015)... April 13, 2015 According ... "Global Biometrics Market Forecast & Opportunities, 2020", the global ... of around 14% till 2020. The biometrics market ... scale implementation and review of biometric management systems. ... new products with greater efficiency, are resulting in ...
(Date:4/8/2015)... , April 8, 2015  Infinisource, a ... and services, and Morpho, a leading supplier of ... to produce the market,s most advanced biometrically-enabled time ... iSolved NXG time clock is setting a bold, ... labor data for the small and mid-size employer. ...
Breaking Biology News(10 mins):Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 2Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 3Global Biometrics Market to Cross US$ 21 Billion by 2020: TechSci Research 2iSolved Time Clock Offers Unmatched Accuracy due to Morpho Biometrics 2iSolved Time Clock Offers Unmatched Accuracy due to Morpho Biometrics 3
... 13, 2009) Boston College Chemistry Professor Udayan Mohanty ... Foundation Fellowship for his theoretical studies of rare chemical ... among the 180 scientists, artists and scholars chosen from ... to receive a Guggenheim this year, Mohanty credited his ...
... of the "longevity" protein SIRT1. By speeding the destruction of ... will be published online April 13 ( www.jcb.org ) and ... Journal of Cell Biology . The yeast ... stretch lifespan. Whether SIRT1 slows aging in mammals isn,t certain, ...
... Here is the latest American Chemical Society (ACS) Weekly ... news from ACS, 34 peer-reviewed journals and Chemical & ... Chemical Society as the source for this information. ... ARTICLE # 1 FOR IMMEDIATE RELEASE, Solving the ...
Cached Biology News:American Chemical Society Weekly PressPac -- April 8, 2009 2American Chemical Society Weekly PressPac -- April 8, 2009 3American Chemical Society Weekly PressPac -- April 8, 2009 4American Chemical Society Weekly PressPac -- April 8, 2009 5American Chemical Society Weekly PressPac -- April 8, 2009 6American Chemical Society Weekly PressPac -- April 8, 2009 7American Chemical Society Weekly PressPac -- April 8, 2009 8American Chemical Society Weekly PressPac -- April 8, 2009 9American Chemical Society Weekly PressPac -- April 8, 2009 10American Chemical Society Weekly PressPac -- April 8, 2009 11
... is a new-generation siRNA transfection reagent that ... 1 nM siRNA in a wide variety ... cell viability. Using low siRNA concentrations avoids ... when transfecting siRNA at higher concentrations, thereby ...
... and Tissue Staining Kits are intended for ... of histological and cytological specimens. These kits ... manufactured by either R&D Systems or by ... the formation of the Avidin-Biotin Complex (ABC) ...
... Cellular uptake of long double stranded RNA ... interference in a diverse group of organisms ... RNA interference leads to the inhibition of ... of the target messenger RNA (mRNA). Attempts ...
... an easy-to-use siRNA transfection reagent that has ... in a variety of cell lines. jetSI-ENDO ... optimized, straightforward protocol. High levels of gene ... transfection of 20 to 100 nM of ...
Biology Products: