Navigation Links
Titanium dioxide nanoreactor
Date:2/21/2013

This press release is available in German.

Now, Dr. Katja Henzler and a team of chemists at the Helmholtz Centre Berlin have developed a synthesis to produce nanoparticles at room temperature in a polymer network. Their analysis, conducted at BESSY II, Berlin's synchrotron radiation source, has revealed the crystalline structure of the nanoparticles. This represents a major step forward in the usage of polymeric nanoreactors since, until recently, the nanoparticles had to be thoroughly heated to get them to crystallize. The last synthesis step can be spared due to the special environment inside the PNIPAM network.

The Henzler team's polymeric nanoreactors consist of a polystyrene core surrounded by a network of PNIPAM chains. A titanium compound was added to an ethanolic solution of the polymer colloids, which did trigger the formation of small titanium dioxide particles within the PNIPAM network. The BESSY II experiments showed that the chemists were able to control the speed of these processes while at the same time affecting the quality of the nanocrystals that had formed.

Using the novel combination of x-ray microscopy and spectroscopy (NEXAFS-TXM, U41-SGM) at BESSY II, Henzler and the microscopy team were able to show that the nanoparticles are homogeneously distributed over the polymeric nanoreactors. The researchers examined their samples in a cryogenic aqueous environment, which prevents artifact formation due to sample drying. Their analysis showed that the nanoparticles have a crystalline structure. "The nanocrystals have a tetragonal anatase structure and this crystalline structure is a key to their catalytic performance.

Additionally, our new analytic method allows us to control the quality of the synthesized particles so that we can optimize them for relevant applications," says Katja Henzler.


'/>"/>

Contact: Katja Henzler
katja.henzler@helmholtz-berlin.de
49-030-806-243-198
Helmholtz Association of German Research Centres
Source:Eurekalert  

Page: 1

Related biology technology :

1. New Data Shows GeNO LLC Nitric Oxide Delivery System Provided Nitric Oxide With Low Levels of Nitrogen Dioxide for Heart Transplant Patient Evaluation
2. From lemons to lemonade: Using carbon dioxide to make carbon nitride
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Titanium dioxide nanoreactor
(Date:1/14/2014)... Rockville, MD (PRWEB) January 14, 2014 ... dedicated to developing innovative information technology solutions for ... other health care stakeholders, announced today the signing ... the US Food and Drug Administration (FDA). ...
(Date:1/14/2014)... 13, 2014 Bob Hainsey, a semiconductor ... 20 years in the industry, has joined SPIE, ... will serve as the society’s Science and Technology Strategist. ... SPIE as our Technology Strategist, further strengthening the technical ...
(Date:1/14/2014)... During the 1600’s through the 1800’s doctors contributed unknowingly to ... time period, doctors did not know that they needed to ... of vulnerable patients. In the same way, medical interns and ... transmitting herpes viruses to their patients. The CBCD explains. , ...
(Date:1/14/2014)... BioMedomics, Inc. , a Point of Care ... novel disease specific POC tests, announced today that it has ... of $690,000. The investment is from private investors and is ... of private investors has significant successful experience in early investments ...
Breaking Biology Technology:Global Record Systems Announces Research Collaboration Agreement with FDA to Create a Novel “Big Data” Paradigm for Collection of Patient Safety and Outcomes Information 2Photonics R&D Leader Bob Hainsey Joins SPIE Technical Staff 2Study: Fatigued Medical Interns Infect Their Patients with Herpes Viruses; The CBCD Sees a Parallel with “The Doctor’s Plague” 2Study: Fatigued Medical Interns Infect Their Patients with Herpes Viruses; The CBCD Sees a Parallel with “The Doctor’s Plague” 3BioMedomics, Inc. Closes $690K Round of Financing 2
... BRISBANE, Calif., Aug. 7 InterMune, Inc. (Nasdaq: ... and President of InterMune, will present at the Canaccord Adams 29th ... 10:30 a.m. EDT. , , To access a ... may log on to the investor relations page of InterMune,s corporate ...
... YORK, Aug. 7 /PRNewswire-Asia-FirstCall/ -- , , ... --2Q09 Net Income Attributable to Controlling Interest was $13.2 million or , ... $0.17 per Diluted Share--, ... American Oriental Bioengineering, Inc. (NYSE: AOB ), ("the Company" or,"AOBO"), ...
... , , EMERYVILLE, Calif., Aug. 6 ... it has agreed to sell an aggregate of four million shares of ... share and $200 million aggregate principal amount of its 4.00% convertible senior ... the underwriters 30-day options to purchase up to an additional 600,000 shares ...
Cached Biology Technology:American Oriental Bioengineering Reports Second Quarter 2009 Financial Results 2American Oriental Bioengineering Reports Second Quarter 2009 Financial Results 3American Oriental Bioengineering Reports Second Quarter 2009 Financial Results 4American Oriental Bioengineering Reports Second Quarter 2009 Financial Results 5American Oriental Bioengineering Reports Second Quarter 2009 Financial Results 6American Oriental Bioengineering Reports Second Quarter 2009 Financial Results 7American Oriental Bioengineering Reports Second Quarter 2009 Financial Results 8Onyx Pharmaceuticals Announces Pricing of Concurrent Offerings of Four Million Shares of Common Stock and $200 Million Principal Amount of Convertible Senior Notes 2Onyx Pharmaceuticals Announces Pricing of Concurrent Offerings of Four Million Shares of Common Stock and $200 Million Principal Amount of Convertible Senior Notes 3
(Date:4/17/2014)... fish consumption advisories for expecting mothers are ineffective ... persistent organic pollutants (POPs). , The study, ... of Toronto Scarborough PhD student Matt Binnington and ... of environmental contamination, a mother,s compliance with advisories, ... influenced exposure in her children. , Their model ...
(Date:4/17/2014)... University engineer has developed a patented technique that ... devices. The same technique could help police during ... and Kay L. Theede chair in engineering and ... his research team have created a template-based system ... trunks. The distance detection method called stand-off ...
(Date:4/17/2014)... and pathogens that devastate honeybees in Europe, Asia and ... do not appear to be impacting native honeybee populations ... researchers., The invasive pests include including Nosema microsporidia ... honeybees appear to be resilient to these invasive pests, ... control pests in Europe, Asia and the United States ...
Breaking Biology News(10 mins):Fish consumption advisories fail to cover all types of contaminants 2Patented research remotely detects nitrogen-rich explosives 2East African honeybees are safe from invasive pests… for now 2East African honeybees are safe from invasive pests… for now 3
... soon be able to make pest insects buzz off for ... all thanks to a tiny finding with enormous potential. ... Pune, India, is the senior author of a study that ... National Academy of Sciences , also called PNAS. Her work ...
... the University of Leeds have come a step closer to ... Their findings, published in the International Journal of Cancer ... to tackle other cancers should be considered as a future ... tamoxifen, that target a protein responsible for tumour growth, have ...
... , This release is available in German ... geneticists no longer dismiss out of hand his belief that ... published his book on evolution, Lamarck,s theory of transformation went ... decade, we have learned that the environment can after all ...
Cached Biology News:From protein to planes and pigskin 2From protein to planes and pigskin 3Another step toward resisting breast cancer 2Epigenetic changes don't last 2Epigenetic changes don't last 3Epigenetic changes don't last 4
supplied with 10x reaction buffer...
... cytopathic effect inhibition assays, also known as CPE ... culture supernatents; serum from PK studies and delivery ... defined as the quantity of interferon required per ... infection by 50%. All standards used ...
... BioPrime Plus Array CGH Genomic Labeling Systems ... reproducible labeling of genomic DNA samples for ... both indirect and direct labeling formats, the ... provide a flexible solution to your genomic ...
... PBL's bioassays for interferons are cytopathic effect ... assays. Sample types include; tissue culture supernatents; ... In these assays, one unit is defined as ... reduce the cytopathic effect of viral infection by ...
Biology Products: