Navigation Links
Researcher says microchannels could advance tissue engineering methods
Date:8/17/2009

as a stored electrical charge is released. This branching pattern occurs on the surface or interior of insulating materials during an electric discharge.

The patterns are similar to the branching patterns seen in a lightning strike. They also can be seen on the skin of lightning-strike victims or on the ground at the point where a lightning strike occurred. A more common example of this effect can be seen in crystal blocks that are often sold as decorative pieces.

Observing these patterns, Ugaz saw the similarities to the artificial network he envisioned creating and wondered if liquid could be transported through these branching pathways, similar to the way nutrients are transported through a tree's vasculature.

He went to work, teaming with Texas A&M's National Center for Electron Beam Research to implant a high level of electric charge inside an acrylic block using electron beam irradiation. When a point of release for the charge was created, Ugaz was left with the expected fractal patterns.

In his laboratory, he and his research group continue to account for such variables as size, range of size, angles, average area ratios and diameters, as well as how all of this relates to the intensity and frequency of charge. Together with Jayaraman, Ugaz is working to translate these microchannels into a biomedical application.

Their work appears promising. So far, the team has found that these fractal pathways can indeed serve as an elaborate vasculature that is capable of sustaining transport in manner suited for tissue engineering purposes. What's more, by adjusting certain variables, Ugaz can reliably reproduce these architectures not only in acrylic blocks but in biodegradable porous materials that allow for cell cultures to be embedded in the area surrounding the vasculature. He's even begun widening the vascular channels to facilitate flow through them and interconnecting separate networks to form larger vasculatures.

And unlike other m
'/>"/>

Contact: Victor Ugaz
ugaz@tamu.edu
979-458-1002
Texas A&M University
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Researchers find genetic link between physical pain and social rejection
2. UTSA biology researchers demystify elusive war zone bacterium
3. UGA researchers propose model for disorders caused by improper transmission of chromosomes
4. Researchers develop new, more-sensitive assay for detecting DNA methylation in colon cancer
5. NIH-funded researchers sequence exomes of 12 people
6. USC researchers identify regulatory genetic sequences that may predict risk for prostate cancer
7. K-State lab gives researchers the tools to study porcine circovirus associated diseases
8. Hebrew U. researchers shed light on the brain mechanism responsible for processing of speech
9. SLAC researchers reveal the dance of water
10. McGill/JGH researchers successfully reverse multiple sclerosis in animals
11. EMBO pioneers pension plan for internationally mobile postdoctoral researchers
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/29/2014)... bacteria and algae, propel themselves using whip-like appendages ... a millimetre long, function like tiny oars, helping ... cilia are found on the surfaces of many ... liquids over the cell. , Flagella and ... expel pathogens from our airways, they establish the ...
(Date:7/28/2014)... by the U.S. Food and Drug Administration (FDA) for ... bacterial pathogens inside human cells, including those that cause ... published in mBio , the online open-access journal ... way of identifying non-antibiotic drugs that could one day ... drugs on the list inhibit the growth of at ...
(Date:7/28/2014)... reached the South Pole in 1911, but new research ... human. , Using data from 16 ice cores collected ... the South Pole, a group led by Joe McConnell ... created the most accurate and precise reconstruction to date ... record, described in an article published today in the ...
Breaking Biology News(10 mins):Microscopic rowing -- without a cox 2Microscopic rowing -- without a cox 3New route to identify drugs that can fight bacterial infections 2Lead pollution beat explorers to South Pole, persists today 2Lead pollution beat explorers to South Pole, persists today 3
... ranging from the shellfish Swedish people eat at traditional ... their millions in both freshwater and saltwater. One of ... crustacean to have its genome sequenced. A researcher from ... The sequencing has been done in an international ...
... of cancer deaths resulted from metastasis, the spread of ... exploration of the possible mechanical factors that promote metastasis ... is expanding the scientific understanding of what makes malignant ... fibrous matrix that surrounds cancer cells. Karen ...
... SPRING HARBOR, N.Y. (March 22, 2011) - An ... to scientists and nonscientists alike. Its behavior involves processes ... those external to itenvironment and social surroundings. According to ... tapestry of biology: It is sparked when neurons fire ...
Cached Biology News:Surprising results in the first genome sequencing of a crustacean 2WSU proves extracellular matrix tugging creates come hither stimulus for cancer migration 2New book on animal behavior provides integrated view 2
(Date:7/29/2014)... SPRING, Md., July 29, 2014  United Therapeutics ... announced its financial results for the second ... continued growth shows that our medicines are ... pulmonary arterial hypertension (PAH)," said Martine Rothblatt, ... Officer. "The commercial launch this quarter of ...
(Date:7/29/2014)... The prestigious "Discovery or Exploration in History ... to Juliana Hillis and Kaylie O’Connell, students at Stoneham ... an Egg, Everything: America’s First IVF Baby". This project ... National History Day program during a week-long final competition ... Washington, D.C. , The growing popularity of the assisted ...
(Date:7/29/2014)... July 29, 2014 ... (LBS) zur Erfassung biologischer Daten in Verbindung ... und patentiert. Das LBS nimmt gleichzeitig mehrere ... des Patienten und sucht erhöhte biologische Aktivitäten ... Potenzial, die Entdeckung und Entwicklung neuer Medikamente ...
(Date:7/28/2014)... “2014 Deep Research Report ... a professional and in-depth research report on ... introduces Lubricant basic information, including Lubricant definition, ... industry overview. This research covers the international ... well as global industry analysis covering macroeconomic ...
Breaking Biology Technology:United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 2United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 3United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 4United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 5United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 6United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 7United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 8United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 9United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 10United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 11United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 12United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 13In Vitro Fertilization (IVF) was the Subject of This Year’s Winning Entry for the Prestigious Library of Congress “Discovery or Exploration in History Award” 2In Vitro Fertilization (IVF) was the Subject of This Year’s Winning Entry for the Prestigious Library of Congress “Discovery or Exploration in History Award” 3PlaqueTec sichert sich CE-Kennzeichnung für Liquid Biopsy System - bahnbrechende Innovation zur Erfassung neuer biologischer Informationen aus erkranktem Herzkranzgefäß 2PlaqueTec sichert sich CE-Kennzeichnung für Liquid Biopsy System - bahnbrechende Innovation zur Erfassung neuer biologischer Informationen aus erkranktem Herzkranzgefäß 3PlaqueTec sichert sich CE-Kennzeichnung für Liquid Biopsy System - bahnbrechende Innovation zur Erfassung neuer biologischer Informationen aus erkranktem Herzkranzgefäß 4Lubricant Market & Adhesion Promoter Industry (Globa, China) Analysis Now Available at DeepResearchReports.com 2Lubricant Market & Adhesion Promoter Industry (Globa, China) Analysis Now Available at DeepResearchReports.com 3Lubricant Market & Adhesion Promoter Industry (Globa, China) Analysis Now Available at DeepResearchReports.com 4
... Rice University,s award-winning undergraduate summer research program NanoJapan ... $4 million grant from the National Science Foundation ... from all U.S. universities, combines a traditional study-abroad ... internship in nanotechnology. The program was created in ...
... Sept. 21 Oxford Resource Partners, LP (NYSE: ... today announced their collaborative agreement to develop a pilot ... previously reclaimed from mining operations by Oxford. The goal ... economic viability of biomass production from dedicated energy crops ...
... JERUSALEM, Sept. 21 Chiasma, Inc., a privately ... CEO, will present an overview of the Company at the ... York, New York, on Wednesday, September 22, 2010 at 11:00 ... clinical trial of the investigational new drug Octreolin™, an oral ...
Cached Biology Technology:Rice University's award-winning NanoJapan program wins $4M grant 2Rice University's award-winning NanoJapan program wins $4M grant 3Oxford Resource Partners, LP and Mendel Biotechnology, Inc. Announce a Miscanthus Biomass Pilot Project in Ohio 2Oxford Resource Partners, LP and Mendel Biotechnology, Inc. Announce a Miscanthus Biomass Pilot Project in Ohio 3Oxford Resource Partners, LP and Mendel Biotechnology, Inc. Announce a Miscanthus Biomass Pilot Project in Ohio 4Chiasma to Present at the UBS Global Life Sciences Conference 2Chiasma to Present at the UBS Global Life Sciences Conference 3
... custom peptide synthesis with a wide variety of ... your research needs. Purity: IG(>50%), ... 2mg-1g Sequence Length: Up to ... N-acetylation, C-amidation, phosphorylation, D-amino acids, MAPs, KLH/BSA conjugation, ...
... liquid handling system from Molecular Devices provides ... one instrument. The system handles a variety ... washing96-, 384- and 1536-welland is the first ... has been optimized to dispense from four ...
A univariate (peak height or area) quantitative multi-component analysis package....
... dramatic breakthrough in accurate, small-volume bulk dispensing. Dispensing ... micro 1 has unique advantages not found in ... never needs re-calibration as do other 1mL dispensers. ... LCD Display , Graphical Row Selection , 96-,384- ...
Biology Products: