Follow us...


Search News Archives





View Channel

Laboratory Products



View Channel

Special Offers and Promotions


Microscopy | Image Analysis



View Channel

Separation Science



View Channel

Coronavirus (COVID-19)



View Channel

Research & Case Studies



View Channel

Brochures & Literature



View Channel


Conferences | Events

JPK’s Optical Tweezers System, the NanoTracker 2, is Used in the Department of Mechanical Engineering at the Shibaura Institute of Technology, Tokyo, Japan to Study Micro-Bubbles

publication date: Mar 22, 2016
author/source: JPK Instruments AG

JPK Instruments, a world-leading manufacturer of nanoanalytic instrumentation for research in life sciences and soft matter, reports on the use of their NanoTracker™ 2 optical tweezers system which is being used to study the physical and chemical properties of micro-bubbles in the Department of Mechanical Engineering at the Shibaura Institute of Technology under the leadership of Associate Professor, Dr Yoko Yamanishi. 

JPK InstrumentsDr Yoko Yamanishi is an Associate Professor in the Department of Mechanical Engineering at Shibaura Institute of Technology, Tokyo, Japan. She leads the Yamanishi Laboratory - the Micro-nano Functional Fluid Laboratory. The Laboratory's goals aim to clarify unknown function of cells by using micro-nano technology based on mechanical, electrical and bio-medical engineering. It targets a contribution to the development of cellular scale medical treatment. For example, research includes work on novel gene injection methods and protein crystallization. Micro-nano scale actuation in micro-fluidic channels is being studied which will help to clarify phenomenon in biomedical fields. 

The goal of Dr Yamanishi's research is to clarify the physical and chemical properties of the air-liquid interface of ejected micro-bubbles created by an electrically-induced bubble injector which was invented in her lab. In particular, the adhesion force to attract gene or protein molecules at the air-liquid interface is one of the most interesting topics because this contributes to the understanding of the injection amount of reagent by electrically-induced bubble injector. The group's chosen approach is to use JPK's optical force-sensing tweezers (NanoTracker™ 2). The motivation to use optical tweezers in their research is to evaluate the adhesion force of air-liquid interface of micro-bubble which is directionally ejected in three-dimensional micro-space. Because the micro-bubbles are moving around micro-space freely, it is important to immobilize or trap to evaluate force, hence the use of force sensing optical tweezers. 

Dr Yamanishi had previously seen homemade optical tweezers systems in use and this experience led her to the choice of a commercial turnkey system as provided by the NanoTracker™ 2. Dr Yamanishi describes the advantages of her choice. “We found that not much time was required to do the optical alignment with the NanoTracker™. Similarly, there were time savings when calibrating the system for force sensing. Overall, the system is compact taking up less bench space than home built systems.” 

more about JPK instruments

more news from JPK instruments


If you have not logged into the website then please enter your details below.


Subscribe to any of our newsletters for the latest on new laboratory products, industry news, case studies and much more!

Newsletters from Lab Bulletin


Request your free copies HERE




Popular this Month...

Our Top 10 most popular articles this month


Today's Picks...




Looking for a Supplier?

Search by company or by product


Company Name:






Please note Lab Bulletin does not sell, supply any of the products featured on this website. If you have an enquiry, please use the contact form below the article or company profile and we will send your request to the supplier so that they can contact you directly.

Lab Bulletin is published by newleaf marketing communications ltd.


Media Partners