Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > New biomimetic material to develop nanosensors

This pattern represents the logo of Moncloa Campus, a topographic image taken with an atomic force microscope of biomimetic polymeric material developed by electron beam lithography. Source: UPM.
This pattern represents the logo of Moncloa Campus, a topographic image taken with an atomic force microscope of biomimetic polymeric material developed by electron beam lithography.

Source: UPM.

Abstract:
The new features of this biomimetic material will allow us to develop multiple nanometer-sized chemical sensors (1 nanometer= 0.000001 mm) over the same substrate by electron beam lithography, as a result, multifunctional biochips of major versatility will be developed. The possibility to record at nanometric scale is an essential benefit facing traditional biomimetic materials since this new material developed by researchers at the Universidad Politécnica de Madrid (UPM) and the Universidad Complutense (UCM) within the framework of Moncloa campus provides commercial potential applications.

New biomimetic material to develop nanosensors

Madrid, Spain | Posted on October 3rd, 2013

This material is compound by a cross-linking linear polymer whose molecular structure is altered by the bombing with electrons. In this way, it is possible to use an electron beam of a few nanometers thick, as if it were an ultra fine point pencil, to write a pattern over a movie of this material adhered to a substrate. After the writing (lithography), the movie is submerged in a liquid developer able to dissolve the film area irradiated by the beam and to leave intact the non irradiated pattern over the substrate.

In addition, the material behaves as a molecularly imprinted polymer (MIP), that is, it is able to recognize a molecule or a specific compound after a printing process at molecular level. The MIPs are synthetic materials with similar functionality to certain biological molecules, such as antigens and antibodies, used as receptors to detect certain molecules, for that reason MIPs are considered as biomimetic materials. The main benefits of the MIPs over the biological receptors are higher resistance to chemicals and extreme weather, lower cost and the ability to create synthetic chemical receptors inexistent in nature.

To date, in order to develop sensors, the methods used to record films in MIPs are based on printing and photolithography techniques. The main drawback of the printing method is the possible contamination of film surfaces of MIP which are in contact with printing molds, whereas the photolithography technique is not suitable to create nanometrics reasons. The new material can be recorded at nanometric scale with no need of mold of mask.

Researchers at the UPM and the UCM have developed nanometrics patterns of this material over silicon substrates by using an electron beam and proving the functionality of the MIP. The material is able to recognize the Rhodamine 123, which is a fluorescent molecule of high sensitivity and selectivity over other rhodamines. The methodology used to develop this material can be applied to the synthesis of other materials susceptible to be recorded by beam of electrons and able to detect substance of interest in toxicology and biomedicine.

The development of nanometrics structures of sensor materials has a double purpose. Firstly, a higher interaction between the sensor and the environment where the analyte is detected, increasing the speed and sensitivity detection. Secondly, the slight size of the sensor structures allow us to integrate multiple elements in just one chip o substrate saving costs and increasing its reliability and functionality of trials.

The method of development of this material was protected by a patent

This project was funded by the former Ministry of Science and Innovation within the framework of Explora project whose main researcher was Carlos Angulo Barrios of the Institute of Optoelectronics Systems and Microtechnology (ISOM) of the UPM. The EXPLORA projects are oriented to promote scientific curiosity, searching for creative research proposals resulting in a deep reflection on a given problem.

####

For more information, please click here

Contacts:
Victoria Ferreiro

Copyright © AlphaGalileo

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 News Press

News and information

'Stealth' nanoparticles could improve cancer vaccines October 1st, 2014

Stressed Out: Research Sheds New Light on Why Rechargeable Batteries Fail October 1st, 2014

New Absorber Will Lead to Better Biosensor: Biosensors are more sensitive and able to detect smaller changes in the environment October 1st, 2014

Graphene chips are close to significant commercialization October 1st, 2014

Govt.-Legislation/Regulation/Funding/Policy

Platinum meets its match in quantum dots from coal: Rice University's cheap hybrid outperforms rare metal as fuel-cell catalyst October 1st, 2014

$18-million NSF investment aims to take flat materials to new heights: 2-D alternatives to graphene may enable exciting advances in electronics, photonics, sensors and other applications October 1st, 2014

Novel approach to magnetic measurements atom-by-atom October 1st, 2014

'Stealth' nanoparticles could improve cancer vaccines October 1st, 2014

Sensors

New Absorber Will Lead to Better Biosensor: Biosensors are more sensitive and able to detect smaller changes in the environment October 1st, 2014

Graphene and Amaranthus Superparamagnets: Breakthrough nanoparticles discovery of Indian researcher September 23rd, 2014

IEEE International Electron Devices Meeting To Celebrate 60th Anniversary as The Leading Technical Conference for Advanced Semiconductor Devices September 18th, 2014

Biosensors Get a Boost from Graphene Partnership: $5 Million Investment Supports Dozens of Jobs and Development of 300mm Fabrication Process and Wafer Transfer Facility September 18th, 2014

Discoveries

Breakthrough in ALD-graphene by Picosun technology October 1st, 2014

Novel approach to magnetic measurements atom-by-atom October 1st, 2014

Nanoparticles Accumulate Quickly in Wetland Sediment: Aquatic food chains might be harmed by molecules "piggybacking" on carbon nanoparticles October 1st, 2014

'Stealth' nanoparticles could improve cancer vaccines October 1st, 2014

Materials/Metamaterials

Rice launches Center for Quantum Materials: RCQM will immerse global visitors in cross-disciplinary research September 30th, 2014

How things coil: Researchers discover that simulation technology designed for Hollywood can be used as a predictive tool for understanding fundamental engineering problems September 29th, 2014

Iranian Scientists Determine Grain Size, Minimize Time of Nanocomposite Synthesis September 29th, 2014

Nanoparticles Used to Improve Quality of Bone Cement September 29th, 2014

Announcements

'Stealth' nanoparticles could improve cancer vaccines October 1st, 2014

Stressed Out: Research Sheds New Light on Why Rechargeable Batteries Fail October 1st, 2014

New Absorber Will Lead to Better Biosensor: Biosensors are more sensitive and able to detect smaller changes in the environment October 1st, 2014

Graphene chips are close to significant commercialization October 1st, 2014

Tools

Breakthrough in ALD-graphene by Picosun technology October 1st, 2014

Novel approach to magnetic measurements atom-by-atom October 1st, 2014

Stressed Out: Research Sheds New Light on Why Rechargeable Batteries Fail October 1st, 2014

Yale University and Leica Microsystems Partner to Establish Microscopy Center of Excellence: Yale Welcomes Scientists to Participate in Core Facility Opening and Super- Resolution Workshops October 20 Through 31, 2014 September 30th, 2014

Patents/IP/Tech Transfer/Licensing

‘Small’ transformation yields big changes September 16th, 2014

Berkeley Lab Licenses Boron Nitride Nanotube Technology: New material has unique mechanical and electronic properties September 13th, 2014

Secure Computing for the ‘Everyman': Quantum computing goes to market in tech transfer agreement with Allied Minds September 2nd, 2014

New analytical technology reveals 'nanomechanical' surface traits August 29th, 2014

Printing/Lithography/Inkjet/Inks

'Greener,' low-cost transistor heralds advance in flexible electronics September 24th, 2014

RMIT delivers $30m boost to micro and nano-tech August 26th, 2014

SouthWest NanoTechnologies Appoints Matteson-Ridolfi for U.S. Distribution of its SMW™ Specialty Multiwall Carbon Nanotubes August 13th, 2014

An Inkjet-Printed Field-Effect Transistor for Label-Free Biosensing August 11th, 2014

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 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE