JPK reports on the use of the ForceRobot® system to study the dynamics of biomacromolecules at Nanjing University

Berlin, (PresseBox) - JPK Instruments, a world-leading manufacturer of nanoanalytic instrumentation for research in life sciences and soft matter, reports on the study of how force regulates the structures and conformational dynamics of biomacromolecules using AFM-based single molecule force spectroscopy, a project of Professor Yi Cao of Nanjing University.

Professor Yi Cao is a member of the Institute of Biophysics located in the Physics Department of Nanjing University. The main focus of his group is to study how force regulates the structures and conformational dynamics of biomacromolecules using AFM based single molecule force spectroscopy. As force has been revealed as an important signal that regulates many biologic processes (e.g. cell adhesion, muscle contraction, membrane fusion and etc.), their study will be helpful for the understanding of the mechanism underlying these processes. In order to study the conformational change of proteins under force, there is the need for a tool that allows the accurate application of force in the pN range and then to measure the change in distance at the nm resolution. AFM is an ideal tool to fulfil this criterion and Professor Cao thinks that JPK's AFM is one of the best AFMs for biological applications.

Professor Cao first got to know ForceRobot® when he was a graduate student at the University of British Columbia in Canada. He notes "I saw the very first version of ForceRobot® in a SPM conference in 2007. It was so amazing to get the experiments done automatically without attendance using the ForceRobot®. I saw that this could save a lot of tedious routine manipulation time. I was impressed that the machine can be controlled remotely through internet or smartphone, which means that the operator can leave experiments running when at home or away from the laboratory. I can change many experimental parameters using the ExperimentPlanner™. Then, when I come back to work, thousands of curves have been collected. All you need to do is to analyze them and think about the science related to these data. Subsequently, I bought a ForceRobot® when I started my own research group in Nanjing University in 2010. The software is getting better and better, especially the data analysis function."

Continuing, Professor Cao said that "before using ForceRobot®, I used a custom-built AFM (commercial heads and piezos). We need to spend quite a lot of time for instrumentation and sometimes the custom-built AFM gave us more flexibility for different kinds of experiments. With the advent of the ForceRobot®, we have a system which greatly improves the quantity and quality of data."

For more details about JPK's ForceRobot® system and applications for the bio & nano sciences, please contact JPK on +49 30533112070, visit the web site: or see more on Facebook: and on You Tube:

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JPK Instruments AG

JPK Instruments AG is a world-leading manufacturer of nanoanalytic instruments - particularly atomic force microscope (AFM) systems and optical tweezers - for a broad range of applications reaching from soft matter physics to nano-optics, from surface chemistry to cell and molecular biology. From its earliest days applying atomic force microscope (AFM) technology, JPK has recognized the opportunities provided by nanotechnology for transforming life sciences and soft matter research. This focus has driven JPK's success in uniting the worlds of nanotechnology tools and life science applications by offering cutting-edge technology and unique applications expertise. Headquartered in Berlin and with direct operations in Dresden, Cambridge (UK), Singapore, Tokyo and Paris (France), JPK maintains a global network of distributors and support centers and provides on the spot applications and service support to an evergrowing community of researchers.

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