News from Q-Sense
Q-Sense Dfind – improved analysis software
Posted on October 13, 2016
Biolin Scientific announces today that the company has launched a new, improved version of its QCM-D analysis software.
The new software, called Q-Sense Dfind, is designed to save time and money for surface scientists working in academic and industrial labs. With a more intuitive and graphical interface, Dfind will make it easier for scientists to extract, quantify and compare real-time data from Q-Sense surface science experiments.
The launch version of Q-Sense Dfind includes the following features:
- Visco-elastic modelling at your fingertips.
- Analyse QCM-D in automated batch mode.
- Less input. More output. With preset parameters, methods and reports.
Biolin Scientific’s Vice President for Analytical Instruments, Johan Westman, comments,
“We’re very excited to launch Q-Sense Dfind. This new and easy-to-use software will enable more scientists to harness the power of Q-Sense – making their surface experiments faster, easier and more reliable. This launch version is just the beginning. We are very much looking forward to work closely with our customers and the scientific community to continuously develop Dfind in line with their feedback, and to satisfy their needs now and in the future.”
For more information about Q-Sense Dfind software, please visit http://www.biolinscientific.com/product/q-sense-dfind/
For more information, please contact:
Jamie Smith – Communications Manager
Telephone: +46 723 757507; Email: Jamie.Smith@biolinscientific.com
New scientific method to analyse detergent efficiency published
Posted on September 13, 2016
Biolin Scientific announce today that study results for a new scientific method to evaluate and rank the cleaning ability of new detergent formulations have been published in the journal Tenside Surfactants Detergents (TSD).
A paper entitled ‘Revealing Detergent Efficiency and Mechanism by Real-Time Measurement Using a Novel and Tailored QCM-D methodology,’ has been published online ahead of print in TSD.
The publication covers a recently completed study using Quartz Crystal Microbalance with Dissipation (QCM-D) technology to determine how to scientifically and rapidly screen detergent formulations in real-time. The study was performed by scientists at Biolin Scientific AB in Sweden in collaboration with the Center For Testmaterials in the Netherlands.
Biolin Scientific strengthens the Q-Sense product portfolio
Posted on March 16, 2016
Today Biolin Scientific announces a new initiative for Q-SenseTM where the entire product line will be upgraded.
These first initiatives will further strengthen the Q-Sense brand and its position as the world-wide leader in QCM-D technology. The program includes the launch of Q-Sense Initiator, a new Q-Sense instrument, and Q-Sense Dfind, a new analysis software. Q-Sense Initiator maintains the core Q-Sense functions and quality while focusing on new customer segments who have a need for an introductory Q-Sense system capable of fundamental analysis. The Q-Sense Dfind software dramatically simplifies data handling and reporting through an intuitive interface and powerful tools for complex analysis.
“Our ambition is to be able to provide a Q-Sense solution for every surface science lab, in order for surface scientists to gain access to our well established Q-Sense technology”, says Johan Westman, Vice President, Analytical Instruments.
For more information, contact Christina Rubenhag, CEO.
New Book: Quartz Crystal Microbalance – The Principle and Application
Posted on January 25, 2016
“Quartz Crystal Microbalance – The Principle and Application” is a new book authored by Prof. Guangzhao Zhang and Prof. Guangming Liu published by Sciencepress China.
This book covers the QCM-D basic principle, explained the polymer/protein/membrane etc adsorption behavior, viscoelastic property, as well as graft kinetics monitored by QCM-D technique.
Prof. Guangzhao Zhang is from School of Material Science and Engineering, South China University of Technology.
Prof. Guangming Liu is from Department of Physical Chemistry, University of Science and Technology of China.
18 new Q-Sensors
Posted on October 6, 2015
Did you know that Q-Sense has 18 new sensor coatings to offer? All used for a wide range of different application areas and as model systems for numerous research problems. Maybe there is one that would really suit your needs?
We are also introducing a new name for our sensors; Q-Sensors. It is a guarantee label that ensures that you will get top performance out of your QCM-D system as our sensors are specifically designed for Q-Sense instrumentation.
Take a moment and check out the possibilities that our range of sensors can bring to your research!
QCM-D knowledge at NFC Summer School
Posted on September 30, 2015
Last week Application Specialist Jennie Ringberg taught Quartz Crystal Microbalance with Dissipation monitoring, QCM-D, at NFC Summer School in Espoo, Finland.
The PhD students attending the class came from Europe and the US, and they were given an introduction on Surface preparation and Surface sensitive methods. The overall theme for the NFC Summer School was “Frontiers on lignocellulosic nanoparticles: metrology and applications”.
“It was great teaching these curious and eager to learn students about QCM-D! Some had already used QCM-D but thought it was great to get more theory behind it. And for some it was a new technology with many potential applications” says Jennie Ringberg.
Amazing Week at Chalmers with Nobel Laureates
Posted on May 6, 2015
This week, some of the most prominent researchers within materials-, energy-, nano- and life science meet at Chalmers in Gothenburg, Sweden for a 5 day workshop symposium called Amazing Week at Chalmers
Thirteen Nobel Laureates are there to give presentations and discuss topics at the frontiers of science. Several QCM-D users are invited to the conference which makes us extra proud. One of the Q-Sense founders, Professor Fredrik Höök is chair at today’s workshop. You can follow the conference live via Youtube.
Publication on the use of combined QCM-Ellipsometry
Posted on March 19, 2015
The paper describes the development of a reference biosensor surface, based upon a binary mixture of oligo-ethylene glycol thiols, one of which has biotin at the terminus, adsorbed onto gold as self-assembled monolayers (SAMs).
These surfaces were analyzed in detail by X-ray photoelectron spectroscopy (XPS) and secondary ion mass spectrometry (SIMS) to establish the relationship between the thiol solution composition and the surface composition and structure. We report the use of argon cluster primary ions for the analysis of PEG-thiols, establishing that the different thiols are intimately mixed and that SIMS may be used to measure surface composition of thiol SAMs on gold with a detection limit better than 1% fractional coverage. The adsorption of neutralized chimeric avidin to these surfaces was measured simultaneously using ellipsometry and QCM-D. Comparison of the two measurements demonstrates the expected nonlinearity of the frequency response of the QCM but also reveals a strong variation in the dissipation signal that correlates with the surface density of biotin. These variations are most likely due to the difference in mechanical response of neutralized chimeric avidin bound by just one biotin moiety at low biotin density and two biotin moieties at high density. The transition between the two modes of binding occurs when the average spacing of biotin ligands approaches the diameter of the avidin molecule.
Neutralized Chimeric Avidin Binding at a Reference Biosensor Surface
Santanu Ray †, Rory T. Steven †, Felicia M. Green †, Fredrik Höök ‡, Barbara Taskinen §, Vesa P. Hytönen §, and Alexander G. Shard *†
Common chemicals can alter the saliva’s protective functions
Posted on December 30, 2014
A study at the Institute of Food Research, Norwich UK, has investigated how common chemicals found in toothpaste (Sodium dodecyl sulphate, SDS, and sodium tripolyphosphate, STP) can alter the protective film of the saliva.
Saliva has a number of functions, one of which is to coat our mouth and teeth in a thin film. The film protects the teeth from acid foods and also lubricates the mouth, which makes eating easier.
The study found that both SDS and STP can change the saliva structure which can affect teeth and mouth protection and may also influence our perception of food.
-This new knowledge not only augments our current understanding of the salivary pellicle, which is important for the development of more realistic salivary mimetics, but also demonstrates how certain ingredients are able to alter the structure of the salivary pellicle,” said Dr Anthony Ash who performed the study.
The researchers at IFR hope to develop a deeper knowledge of the salivary pellicle, how its physical structure can be influenced by exposure to different food and oral hygiene ingredients by measuring the film forming properties of the human saliva.
Structural and compositional changes in the salivary pellicle induced upon exposure to SDS and STP
Authors: Anthony Asha*, Francis Mulhollanda, Gary R. Burnettb & Peter J. Wildea
Volume 30, Issue 10, 2014 pages 1183-1197
How to use QCM-D for biomolecular interactions
Posted on November 17, 2014
Want to learn how to use QCM-D for protein-protein-and nucleic acid/protein interaction studies?
Listen to this recorded webinar on QCM-D and our functionalized sensors for bio-molecular interactions!
The webinar will describe the basics of the QCM-D technology and in-depth knowledge of various immobilization strategies