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JPK Reports on the Retrovirus Research of Professor Itay Rousso and his Colleagues at Ben-Gurion University in Israel Using the NanoWizard ULTRA Speed AFM

publication date: Jan 30, 2018
author/source: JPK Instruments AG

JPK Ben Gurion U users - Rousso  Rankovic

JPK Instruments, a world-leading manufacturer of nanoanalytic instrumentation for research in life sciences and soft matter, reports on the ground-breaking research into the understanding of the reproduction of retroviruses such as HIV at Ben-Gurion University in Beer-Sheba, Israel.

This research uses JPK's NanoWizard® ULTRA Speed AFM. 

Professor Itay Rousso leads a research group in the Department of Physiology and Cell Biology at Ben-Gurion University in Beer Sheba. Their focus is to uncover the physical mechanism underlying the replication machinery of enveloped retroviruses (primarily HIV). So far, they have studied the assembly and budding steps, viral entry and during the past three years, they have been studying the mechanism that triggers core disassembly and release of the viral genome – a process termed uncoating. 

In the opinion of Professor Rousso, one of the major advantages of the AFM is its ability to study “live” samples under physiological environments with spatial resolution similar to that of the EM. This ability enables investigating dynamic processes as well as characterization of samples under native environments. His team studies specimens at sizes of 80-100 nm, which is well within the resolution limit of the AFM, which allow the investigation of viral associated process with sufficient resolution. Presently, the questions they investigate can hardly be addressed using other techniques. 

With experience of different commercial systems, Dr Rousso talks about why the JPK system offers particularly helpful capabilities. “For us, the JPK system can provide some of the more advanced features such as quantitative imaging mode, QI™, and fast-scanning imaging. The main benefits in using JPK AFM system are that (1) JPK is a company which provides a direct link to their development team. This enables more flexibility in our work, e.g. we often use non-conventional measurements which we can consult and even obtain some custom modifications; and (2) the open architecture design of the JPK operating system basically provides the user with the ability to customize nearly every parameter and perform measurements and experiments as required.” 

The Rousso group have published a number of papers using the JPK NanoWizard® AFM to study the mechanical and morphological properties of HIV-1 capsids. These illustrate the NanoWizard®'s versatility, resolution and high performance imaging.1-3 

For more details about JPK’s AFM systems and their applications for the materials, life & nano sciences, please visit the web site.

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