Corporate Banner
Satellite Banner
Spectroscopy
Scientific Community
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Anasys Report on the Lorentz Contact Resonance Imaging Mode

Published: Friday, March 29, 2013
Last Updated: Friday, March 29, 2013
Bookmark and Share
Now available for Anasys’s afm+ and nanoIR systems.

Anasys Instruments continues to expand the capabilities of their nanoscale materials characterization techniques with the Lorentz Contact Resonance (LCR) imaging mode. This is now available for their afm+® and nanoIR™ systems.

The Lorentz Contact Resonance imaging mode further enhances the capabilities of the afm+ and nanoIR systems from Anasys.

LCR allows rapid broadband nanomechanical measurements over a range of temperatures.

LCR imaging differentiates between multiple components of a sample and allows precise location of the probe for subsequent chemical or thermal analysis with nanoscale resolution.

LCR provides both nanomechanical spectroscopy and compositional mapping on the highest levels of resolution.

For example, analysis of wideband contact resonance spectra may readily differentiate different domains in polymer blends while the high resolution image maps provide insight to materials components in heterogeneous polymer blends.

The technique is based upon the Anasys proprietary Thermalever™ probes. LCR works by using a pole piece to focus a magnetic field onto the end of the probe.

An oscillating current is then passed through the probe. The interaction between the magnetic field and the electric field causes a perpendicular force in the cantilever resulting in an oscillating behavior of the cantilever.

Driving the tip in this fashion, instead of with a piezoelectric crystal, provides many advantages, including no moving parts in the drive system leading to clean cantilever resonance spectra with no parasitic peaks.

Then, using the Anasys Analysis Studio software, a wide range of frequency sweeps are made (from 1 kHz to 4 MHz).

By placing the Thermalever probe on the surface of a sample and sweeping the entire frequency range, we can obtain mechanical spectra of the surface.

Materials with different stiffness will display different amplitudes or shifted peaks at the resonant frequencies of the cantilever.

This work has been recently published in the journal, Nanotechnology. The reference is Lee, B.; Prater, C. B.; King, W. P. Nanotechnology 2012, 23, 055709.


Further Information
Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 2,500+ scientific posters on ePosters
  • More than 3,700+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.

Related Content

New NIST AFM-IR Publication has Catalysis Research Implications
Anasys Instruments reports on a new publication from their nanoIR users at NIST which assess the chemical composition of a metal-organic framework with nanoscale resolution.
Tuesday, March 25, 2014
Inventor of AFM-IR Technique to Receive Ernst Abbe Memorial Award
Professor Alexandre Dazzi to receive the award for pioneering field of nanoscale IR Spectroscopy.
Wednesday, March 19, 2014
French Researchers to Identify Best Microbes for Biofuel Production
Scientists used atomic force microscopy combined with infrared spectroscopy.
Wednesday, February 19, 2014
Anasys' NIST Users Report on New AFM-IR Nanoscale Chemical Imaging Method
New application for AFM-IR to study in NIST publication "Tech Beat."
Thursday, July 25, 2013
Purdue University Researchers Use Nanoscale IR Spectroscopy via AFM-IR
Utilizing this technique has provided key insights into drug-polymer blends.
Friday, May 11, 2012
Invited Award Symposium Presentation Nanoscale IR Spectroscopy at Pittcon 2012
Anasys Instruments announced that Dr. Bruce Chase is presenting an invited talk entitled "Structure and Orientation in Electrospun Nanofibers", as part of the Organized Contributed Session on Analytical Applications of Broadly Tunable Lasers.
Thursday, March 08, 2012
Anasys Instruments Receives Microscopy Today’s 2011 Innovation Award
AFM-IR system has been recognized by Microscopy Today in the receipt of the 2011 Innovation Award.
Thursday, August 18, 2011
Scientific News
A Highly Sensitive Graphene Based Sensor
Researchers at EPFL and ICFO have developed a sensor made from graphene to detect molecules such as proteins and drugs.
Cannabis May Be Used to Treat Fractures
TAU researcher finds non-psychotropic compound in marijuana can help heal bone fissures.
Researchers Reveal Elusive Molecule
A long-standing chemistry puzzle has been solved, with potential implications ranging from industrial processes to atmospheric chemistry.
Optical 'Dog's Nose' Developed to Detect Cancer, Other Diseases
Researchers are using optical spectroscopy to develop a quick, non-invasive “breath test” they believe will have the potential to screen for a variety of diseases, including diabetes, infections and cancers.
Unravelling the Mysteries of Carbonic Acid
Researchers have shown how gaseous carbon dioxide molecules are solvated by water to initiate the proton transfer chemistry that produces carbonic acid and bicarbonate.
NIR Spectroscopy Produces a Handy Image of Blood Circulation
Poor blood circulation can be revealed by a novel form of near infrared (NIR) spectroscopy, say Italian medical researchers.
Combination Imaging Reveals Fuel Cell Damage
A simultaneous view of both chemical distribution and bonding states in fuel cell membranes shows how and where irreversible degradation takes place.
Shining A New Light On The Immune System
Scientists at the University of St Andrews have developed a revolutionary method of identifying cells of the immune system with “molecular fingerprints” which could pave the way for the rapid detection of conditions such as leukaemia and lymphoma from a small blood sample.
Holes in Gold Enhance Molecular Sensing
Electrochemical techniques produce tuneable porous gold films, where the empty spaces enhance light scattering and sensing signals.
Damming hemorrhagic diseases
A potential mechanism to combat diseases caused by haemorrhagic fever viruses has been discovered by researchers.
Skyscraper Banner

Skyscraper Banner
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
2,500+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
3,700+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FREE!