JPK's NanoWizard AFM Studies Biological Nanostructures at Switzerland's EPFL

JPK Instruments, a world-leading manufacturer of nanoanalytic instrumentation for research in life sciences and soft matter, reports on how the NanoWizard AFM is being applied in the study of nanostructures and nano-sized systems at the École Polytechnique Federale de Lausanne.

$IMAGE$$

The Laboratory of the Physics of Living Matter (LPMV) at the École Polytechnique Federale de Lausanne, better known as EPFL, uses various techniques for the study of the nanosciences, an intrinsically interdisciplinary field providing many scientific challenges from different research fields including biosensors, life, materials and space sciences. These tools include Scanning Probe Microscopy, coupled with optical and fluorescence microscopy, spectroscopy (UV-Vis-IR, FTIR) and electron microscopy.

Dr Giovanni Longo is a Research Scientist in the LPMV under the supervision of Professor Giovanni Dietler. He works on a number of projects which require the accuracy and reproducible performance at high resolution of an atomic force microscope, AFM, and has chosen the JPK NanoWizard® 3 for his work. For example, he uses the AFM cantilevers for the rapid detection of bacterial resistance to antibiotics. The diagnostic tool has been conceived to study the dynamical movements of specimens (such as conformational changes in proteins, or small movements in bacteria or cells) in order to investigate their features and their response to external stimuli. Living, moving specimens are attached to an AFM cantilever and their movements are transduced by the lever to the AFM electronics and recorded. Dr Longo showed that these movements are related to the metabolism of the bacteria or cells attached to the lever and that this system can be used to define, in minutes, the resistance of bacteria to antibiotics. [Longo et al. Nature Nanotechnology 2013]

Describing this work, Dr Longo said "We recently moved this activity to the JPK NanoWizard microscope since it demonstrated an excellent sensitivity and since the optical microscope is invaluable to couple the macroscopic movements of the biological systems with the microscopic movements we detect using our nanomotion sensor." [Aghayee et al. Journal of Molecular Recognition, 2013]

Dr Longo describes a second project. "We also study osteoblasts for bone-integration and to characterize their response to microgravity conditions. This research activity is aimed to the study of the growth of osteoblasts with a focus on their interactions with differently prepared substrates and to different gravity conditions. In this field of research we have coupled the fluorescence microscopy capabilities of the Axiovert inverted microscope with the high-resolution AFM images to obtain stunning images of cells."

There are three main features of the NanoWizard which makes it the ideal tool for AFM studies. First, it operates with remarkable stability and the images it delivers are of high-quality and with a very high rate of repeatability. This is particularly impressive since the X/Y/Z ranges are not small and yet the images are of excellent quality both at very large and at very small ranges. Moreover, the system is capable of stable imaging for several hours with very little drift and a precise control of the imaging position.

The JPK Quantitative Imaging mode (QI™) is excellent allowing fast imaging of the specimens while, at the same time, collecting their mechanical properties. This is invaluable especially when characterizing many samples or when a large number of cells must be probed. For example, Dr Longo used it to determine the stiffness of hundreds of bacteria in different environmental conditions in just a few weeks, much more rapidly than could be achieved on older systems.

Lastly, when the microscope is coupled with an excellent optical inverted microscope, it is capable of fluorescence imaging. This allows producing wonderful correlative images and allows monitoring the evolution of living systems with the combination of two different microscopy techniques.

About JPK Instruments

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 ever-growing community of researchers.

Citations

Please use one of the following formats to cite this article in your essay, paper or report:

  • APA

    Bruker BioAFM. (2019, February 11). JPK's NanoWizard AFM Studies Biological Nanostructures at Switzerland's EPFL. AZoNano. Retrieved on March 01, 2024 from https://www.azonano.com/news.aspx?newsID=28801.

  • MLA

    Bruker BioAFM. "JPK's NanoWizard AFM Studies Biological Nanostructures at Switzerland's EPFL". AZoNano. 01 March 2024. <https://www.azonano.com/news.aspx?newsID=28801>.

  • Chicago

    Bruker BioAFM. "JPK's NanoWizard AFM Studies Biological Nanostructures at Switzerland's EPFL". AZoNano. https://www.azonano.com/news.aspx?newsID=28801. (accessed March 01, 2024).

  • Harvard

    Bruker BioAFM. 2019. JPK's NanoWizard AFM Studies Biological Nanostructures at Switzerland's EPFL. AZoNano, viewed 01 March 2024, https://www.azonano.com/news.aspx?newsID=28801.

Tell Us What You Think

Do you have a review, update or anything you would like to add to this news story?

Leave your feedback
Your comment type
Submit
Azthena logo

AZoM.com powered by Azthena AI

Your AI Assistant finding answers from trusted AZoM content

Your AI Powered Scientific Assistant

Hi, I'm Azthena, you can trust me to find commercial scientific answers from AZoNetwork.com.

A few things you need to know before we start. Please read and accept to continue.

  • Use of “Azthena” is subject to the terms and conditions of use as set out by OpenAI.
  • Content provided on any AZoNetwork sites are subject to the site Terms & Conditions and Privacy Policy.
  • Large Language Models can make mistakes. Consider checking important information.

Great. Ask your question.

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.