Navigation Links
Nanostructures with living cells
Date:2/5/2013

lop a universal method, which can serve as a standard for three dimensional cell cultures and which can be adapted for different kinds of tissue and different kinds of cells", says Aleksandr Ovsianikov.

Laser Turns Liquid into Taylor-Made Scaffold

At first, the cells are suspended in a liquid, which mainly consists of water. Cell-friendly molecules are added, which react with light in a very special way: a focused laser beam breaks up double bonds at exactly the right places. A chemical chain reaction then causes the molecules to bond and create a polymer.

This reaction is only triggered when two laser photons are absorbed at the same time. Only within the focal point of the laser beam the density of photons is high enough for that. Material outside the focal point is not affected by the laser. "That is how we can define with unprecedented accuracy, at which points the molecules are supposed to bond and create a solid scaffold", explains Ovsianikov.

Guiding the focus of the laser beam through the liquid, a solid structure is created, in which living cells are incorporated. The surplus molecules which are not polymerized are simply washed away afterwards. This way, a hydrogel structure can be built, similar to the extracellular matrix which surrounds our own cells in living tissue. Ideas from nature are imitated in the lab and used for technological applications. This approach, called 'bio-mimetics' plays an increasingly important role, especially in materials science. Aleksandr Ovsianikov is confident that in many cases, this technology will render animal testing unnecessary and yield much quicker and more significant results.

Turning Stem Cells into Tissue

Stem cell research is a particularly interesting field of application for the new technology. "It is known that stem cells can turn into different kinds of tissue, depending on their environment", says Aleksandr Ovsianikov. "On top of a hard su
'/>"/>

Contact: Florian Aigner
florian.aigner@tuwien.ac.at
0043-158-801-41027
Vienna University of Technology
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Biologistics: How fast do chemical trains move in living cells?
2. Bats split on family living
3. Black piranha, megapiranha have most powerful bites of fish living or extinct, finds GW researcher
4. Long-distance solute transport in trees improved by intercellular pathways in living woody tissues
5. Ancient microbes found living beneath the icy surface of Antarctic lake
6. Soft Robotics: A groundbreaking new journal on engineered soft devices that Interact with Living Systems
7. Watching the cogwheels of the biological clock in living cells
8. Living power cables discovered
9. A new look at proteins in living cells
10. Force of nature: Defining the mechanical mechanisms in living cells
11. Penn researchers improve living tissues with 3-D printed vascular networks made from sugar
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Nanostructures with living cells
(Date:9/22/2014)... CO, USA More than 7,000 geoscientists will gather ... at The Geological Society of America,s 126th Annual Meeting ... cover such topics as the transportation of crude oil, ... A dedicated field guide, Trials and Tribulations of Life ... and around the Vancouver area. , A broad range ...
(Date:9/21/2014)... On the eve of United Nations General Assembly events ... of mothers, newborns and children, Grand Challenges Canada, funded ... in grants for 22 bold ideas to address this ... A program for Bangladeshi mothers working in garment ... thereby improving infant nutrition, reducing absenteeism due to child ...
(Date:9/21/2014)... are significantly less likely to report taking iron supplements ... children who are developing normally, a study by researchers ... Low iron intake was associated with a five-fold greater ... was 35 or older at the time of the ... such as obesity hypertension or diabetes. , The research ...
Breaking Biology News(10 mins):Geoscience topics in the spotlight -- Vancouver, BC 2Geoscience topics in the spotlight -- Vancouver, BC 3Geoscience topics in the spotlight -- Vancouver, BC 4Geoscience topics in the spotlight -- Vancouver, BC 5Canada funds 22 innovative projects to help save 'Every Woman, Every Child' 2Canada funds 22 innovative projects to help save 'Every Woman, Every Child' 3Canada funds 22 innovative projects to help save 'Every Woman, Every Child' 4Canada funds 22 innovative projects to help save 'Every Woman, Every Child' 5Canada funds 22 innovative projects to help save 'Every Woman, Every Child' 6Canada funds 22 innovative projects to help save 'Every Woman, Every Child' 7Canada funds 22 innovative projects to help save 'Every Woman, Every Child' 8Canada funds 22 innovative projects to help save 'Every Woman, Every Child' 9Canada funds 22 innovative projects to help save 'Every Woman, Every Child' 10Canada funds 22 innovative projects to help save 'Every Woman, Every Child' 11Canada funds 22 innovative projects to help save 'Every Woman, Every Child' 12Canada funds 22 innovative projects to help save 'Every Woman, Every Child' 13Canada funds 22 innovative projects to help save 'Every Woman, Every Child' 14Canada funds 22 innovative projects to help save 'Every Woman, Every Child' 15Mothers of children with autism less likely to have taken iron supplements 2
... female fertility by directly affecting the uterus ?making it ... implant, according to research published on line (Thursday 9 ... , The finding, from a team of fertility ... of comparing the pregnancy rates between non-heavy smokers and ...
... malaria remains the subject of "best guesses," and as ... by perceptions and politics, rather than an objective assessment ... Medicine. , Simon Hay and Robert Snow (Kenya Medical ... has been almost 40 years since the last global ...
... a few square meters in size, where fluid is ... volcanoes which are active areas of fluid seepage, are ... conditions give rise to some of the most extreme ... the planet. , Extensive fields of hydrocarbon-rich gas ...
Cached Biology News:Heavy smoking cuts women's chance of pregnancy -- even with donated oocytes 2Heavy smoking cuts women's chance of pregnancy -- even with donated oocytes 3Life in the extreme 2
(Date:9/19/2014)... NC (PRWEB) September 19, 2014 ... Biobased Product Label for its Organic Cotton . ... product’s amount of renewable biobased ingredients meets or exceeds ... intermediate materials composed in whole or in significant part ... logo/label will allow our Organic cotton to be immediately ...
(Date:9/19/2014)... 2014 Dublin ... has announced the addition of the  "Micro Market ... their offering.       (Logo: http://photos.prnewswire.com/prnh/20130307/600769) , ... the fastest-growing segments in the chromatography market. The ... and expected to reach $2.0 billion by 2019, ...
(Date:9/19/2014)... September 19, 2014 The new , ... , available today on PharmaBoardroom.com for ... crisis that rocked the Spanish economy in 2009, and the ... community has remained pragmatic in times of trouble. ... the fifth biggest European market, and the general conditions to ...
(Date:9/18/2014)... September 18, 2014 HealthTronics, ... and interventional radiology products and services, announced that ... cryotherapy and cryoablation) versus external beam radiotherapy (EBRT) ... the American Urological Association (MAAUA) Annual Meeting in ... Relative Effectiveness of Cryosurgery and External Beam Radiation ...
Breaking Biology Technology:Barnhardt Manufacturing Company Earns USDA Certified Biobased Product Certification and Label for Organic Cotton 2Micro Market Monitor : Global Pre-packed Chromatography Columns 2PharmaBoardroom Releases New Spain Pharmaceuticals Report 2PharmaBoardroom Releases New Spain Pharmaceuticals Report 3HealthTronics Announces Data Comparing Cryotherapy Versus Radiation for Treating Prostate Cancer Poster Presented at the American Urological Association Regional Meeting 2
... Blood America, Inc . ( www.cordblood-america.com ) (OTC Bulletin Board: ... cell preservation company focused on bringing the life saving ... announced revenues of $2.89 million for the first six months ... million in the same period in 2010.  Revenues for the ...
... IQ is pioneering new compound management discussion platform with launch of ... Integrity Online event, which will take an innovative form of ... 31 st   of October 2011. ... the agenda for many organisations and this was recently recognised by ...
... ALBUQUERQUE, N.M., Aug. 10, 2011 Exagen Diagnostics, ... discovers, develops and markets proprietary tests for rheumatologists and ... President and Chief Operating Officer. Tornoe has ... sales, sales management and marketing, making him a key ...
Cached Biology Technology:Cord Blood America Six Month Revenues Up 61 Percent; Gross Profit Up 100 Percent 2Cord Blood America Six Month Revenues Up 61 Percent; Gross Profit Up 100 Percent 3Compound Management and Integrity Goes Online 2Compound Management and Integrity Goes Online 3Eric Tornoe Joins Exagen Diagnostics as President and COO 2
... Fully adjustable mixing angle, Variable speed, Digital ... a number of different sized tubes, Spillage ... cultures, keeping biological samples in suspension and ... be used in incubators up to 60C ...
... The DNA Engine Opticon 2 real-time PCR ... LEDs for fluorescence excitation (470-505 nm) and ... nm, 540-700 nm). The Opticon 2 system ... cycler, which includes a thermal gradient feature. ...
... Multicolor capability allows detection of SYBR Green ... and a range of fluorophores in the ... and TAMRA for a multitude of ... DNA Engine thermal cycler offers precision thermal ...
Fingerprinting II dimensioning techniques is an optional module that adds principal component analysis, multidimensional scaling, discriminant analysis and MANOVA, and self-organizing maps to the Fin...
Biology Products: