Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > New microfluidic approach for the directed assembly of functional materials

An optical micrograph of the microchannel junction with red dye flow-focused in water shows experimental conditions used for nanostructure assembly.
An optical micrograph of the microchannel junction with red dye flow-focused in water shows experimental conditions used for nanostructure assembly.

Abstract:
University of Illinois researchers have developed a new approach with applications in materials development for energy capture and storage and for optoelectronic materials.

New microfluidic approach for the directed assembly of functional materials

Urbana, IL | Posted on October 8th, 2013

According to Charles Schroeder, an assistant professor in the Department of Chemical and Biomolecular Engineering, the results show that peptide precursor materials can be aligned and oriented during their assembly into polypeptides using tailored flows in microfluidic devices.

The research was a collaboration between the labs of Schroeder and William Wilson, a research professor in materials science and engineering and the Frederick Seitz Materials Research Laboratory at Illinois. Their findings were recently published in a paper entitled, "Fluidic-directed assembly of aligned oligopeptides with pi-conjugated cores" in Advanced Materials.

"A grand challenge in the field of materials science is the ability to direct the assembly of advanced materials for desired functionality," says Amanda Marciel, a graduate student in Schroeder's research group. "However, design of new materials is often hindered by our inability to control the structural complexity of synthetic polymers."

"To address the need for controlled processing of functional materials, we developed a microfluidic-based platform to drive the assembly of synthetic oligopeptides," Marciel explained. "Using a microfluidic device, we assembled DFAA and DFAG into one dimensional nanostructures using a planar extensional flow generated in a cross-slot geometry."

The dynamics of the assembly process can be followed in real-time using fluorescence microscopy and spectroscopy.

"The assembled nanostructure is spectrally distinct from the synthetic oligopeptide monomer, which can be used to monitor the dynamics of nanostructure formation," Marciel added. "Using precise hydrodynamic control of the microfluidic platform, the researchers demonstrated the formation of multiple parallel-aligned synthetic oligopeptide nanostructures and their subsequent disassembly. By modulating volumetric flow rates in the device they were able to manipulate the position of the fluid-fluid interface at the microchannel junction.

During this process, nanostructures initially formed at the reactive laminar interface are submerged into the advancing acidic stream, thereby preserving the integrity of the preformed nanostructures while initiating formation of an aligned nanostructure at the new interface position.

Marciel says this research shows that is possible to use microfluidic-based flows to direct the structural assembly of polymers into functional materials.

"Our approach has the potential to enable reproducible and reliable fabrication of advanced materials." Marciel said. "Achieving nanoscale ordering in assembled materials has become the primary focus of recent efforts in the field. These approaches will ultimately lead to desired morphology in functional materials, which will enhance their ability to capture and store energy."

"Our research team is quite interdisciplinary and has a unique range of skills to study materials assembly," Schroeder said. "Our group has extensive experience in the design and fabrication of microfluidic devices and fluorescence imaging of soft materials." The team's ultimate goal is to assemble the organic equivalent of typical semiconducting materials.

"This would open the door to developments of materials with application to photovoltaic devices, solid-state lighting, energy harvesting, and catalytic processes," she said.

In addition to Marciel, Schroeder, and Wilson, the paper's authors included, Melikhan Tanyeri, Brian D. Wall, and John D. Tovar. The team used spectroscopic and analytical tools at the Frederick Seitz Materials Research Lab to conduct its research.

####

For more information, please click here

Contacts:
Charles Schroeder

217-333-3906

Writer:
Sarah Williams
assistant director of communications
Department of Chemical and Biomolecular Engineering
217/244-0541

Copyright © University of Illinois College of Engineering

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

Download paper - “Fluidic-directed assembly of aligned oligopeptides with pi-conjugated cores”:

Related News Press

News and information

Prototype 'nanoneedles' generate new blood vessels in mice: Scientists have developed tiny 'nanoneedles' that have successfully prompted parts of the body to generate new blood vessels, in a trial in mice March 31st, 2015

Super sensitive measurement of magnetic fields March 31st, 2015

Nanomedicine pioneer Mauro Ferrari at ETH Zurich March 31st, 2015

From tobacco to cyberwood March 31st, 2015

'Atomic chicken-wire' is key to faster DNA sequencing March 30th, 2015

Display technology/LEDs/SS Lighting/OLEDs

Roll up your screen and stow it away? Tel Aviv University researchers develop molecular backbone of super-slim, bendable digital displays March 30th, 2015

Solving molybdenum disulfide's 'thin' problem: Research team increases material's light emission by twelve times March 29th, 2015

Haydale Announce Dedicated Graphene Inks Manufacturing Capability March 25th, 2015

Imaging

'Atomic chicken-wire' is key to faster DNA sequencing March 30th, 2015

FEI Technology Award of the German Neuroscience Society Goes to Benjamin Judkewitz of the University of Berlin: Bi-annual award honors excellence in brain research during the German Neuroscience Society’s Annual Meeting, held 18-21 March 2015 March 26th, 2015

Renishaw reports on the use of Raman spectroscopy at CNRS Orléans to study materials under extreme conditions March 25th, 2015

Nanorobotic agents open the blood-brain barrier, offering hope for new brain treatments March 25th, 2015

Microfluidics/Nanofluidics

Square ice filling for a graphene sandwich March 26th, 2015

Discoveries

Prototype 'nanoneedles' generate new blood vessels in mice: Scientists have developed tiny 'nanoneedles' that have successfully prompted parts of the body to generate new blood vessels, in a trial in mice March 31st, 2015

Super sensitive measurement of magnetic fields March 31st, 2015

From tobacco to cyberwood March 31st, 2015

Next important step toward quantum computer: Scientists at the University of Bonn have succeeded in linking 2 different quantum systems March 30th, 2015

Materials/Metamaterials

Wrapping carbon nanotubes in polymers enhances their performance: Scientists at Japan's Kyushu University say polymer-wrapped carbon nanotubes hold much promise in biotechnology and energy applications March 30th, 2015

DFG to Establish One Clinical Research Unit and Five Research Units: New Projects to Investigate Complications in Pregnancy, Particle Physics, Nanoparticles, Implants and Transport Planning / Approximately 13 Million Euros in Funding for an Initial Three-Year Period March 28th, 2015

Chemists make new silicon-based nanomaterials March 27th, 2015

UT Dallas engineers twist nanofibers to create structures tougher than bulletproof vests March 27th, 2015

Announcements

Prototype 'nanoneedles' generate new blood vessels in mice: Scientists have developed tiny 'nanoneedles' that have successfully prompted parts of the body to generate new blood vessels, in a trial in mice March 31st, 2015

Super sensitive measurement of magnetic fields March 31st, 2015

Nanomedicine pioneer Mauro Ferrari at ETH Zurich March 31st, 2015

From tobacco to cyberwood March 31st, 2015

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

Prototype 'nanoneedles' generate new blood vessels in mice: Scientists have developed tiny 'nanoneedles' that have successfully prompted parts of the body to generate new blood vessels, in a trial in mice March 31st, 2015

Super sensitive measurement of magnetic fields March 31st, 2015

From tobacco to cyberwood March 31st, 2015

Next important step toward quantum computer: Scientists at the University of Bonn have succeeded in linking 2 different quantum systems March 30th, 2015

Energy

Wrapping carbon nanotubes in polymers enhances their performance: Scientists at Japan's Kyushu University say polymer-wrapped carbon nanotubes hold much promise in biotechnology and energy applications March 30th, 2015

Solving molybdenum disulfide's 'thin' problem: Research team increases material's light emission by twelve times March 29th, 2015

SUNY Poly & M+W Make Major Announcement: Major Expansion To Include M+W Owned Gehrlicher Solar America Corporation That Will Create up to 400 Jobs to Develop Solar Power Plants at SUNY Poly Sites Across New York State March 26th, 2015

Hong Kong Investors Bullish on Dais Analytic Invest $5.75M, Provide $60M Contract, and Create New Joint Venture Company March 26th, 2015

Battery Technology/Capacitors/Generators/Piezoelectrics/Thermoelectrics/Energy storage

Chemists make new silicon-based nanomaterials March 27th, 2015

New processing technology converts packing peanuts to battery components March 22nd, 2015

NC State researchers create 'nanofiber gusher': Report method of fabricating larger amounts of nanofibers in liquid March 19th, 2015

Drexel Univ. materials research could unlock potential of lithium-sulfur batteries March 17th, 2015

Photonics/Optics/Lasers

Super sensitive measurement of magnetic fields March 31st, 2015

Next important step toward quantum computer: Scientists at the University of Bonn have succeeded in linking 2 different quantum systems March 30th, 2015

Solving molybdenum disulfide's 'thin' problem: Research team increases material's light emission by twelve times March 29th, 2015

A first glimpse inside a macroscopic quantum state March 28th, 2015

Solar/Photovoltaic

Wrapping carbon nanotubes in polymers enhances their performance: Scientists at Japan's Kyushu University say polymer-wrapped carbon nanotubes hold much promise in biotechnology and energy applications March 30th, 2015

Solving molybdenum disulfide's 'thin' problem: Research team increases material's light emission by twelve times March 29th, 2015

LAMDAMAP 2015 hosted by the University March 26th, 2015

SUNY Poly & M+W Make Major Announcement: Major Expansion To Include M+W Owned Gehrlicher Solar America Corporation That Will Create up to 400 Jobs to Develop Solar Power Plants at SUNY Poly Sites Across New York State March 26th, 2015

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More










ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE