FlowCam - Flow Imaging Microscopy Blog

Superabrasives, such as micronized diamonds and cubic boron nitride (CBN), are used extensively in applications for cutting, grinding, and drilling hard materials. The effectiveness of a particular superabrasive material in a given application is largely determined by both particle size and particle shape. 

Above images: Left, mixed diamond powder, particle property shown is Diameter ESD.
Right, high circularity diamond powder particles, filtered by circularity.

This week FlowCam Applications Scientist, Kay Johnson, visited the Canary Islands to train a new team of FlowCam users at ITC (Instituto Tecnólogico de Canarias). ITC in Pozo Izquierdo is using a FlowCam 8400 with 488nm laser to monitor marine phytoplankton. The team was originally trained by Nicole Gill when they first purchased the FlowCam in 2019, but this year a new group of scientists from Italy and Serbia have joined their team. 

Pictured here (left to right): Kay Johnson, Flavio Guidi, Tonia Principe, Marianna Venuleo, Maca Golezalaz, Zivan Gojkovic 

The FlowCam has been used in marine and freshwater applications since its invention in 1999. Since then, it has been found to be valuable across many industries to evaluate microparticles of importance in medicine, manufacturing, and environmental disciplines. Rarely do we see these applications cross paths - where man-made particles are being analyzed in marine and freshwater environments. One example of this intersection is the study of microplastics, and the problems they cause for our oceans and marine life. 

An interview with Steve Bowen, Director of Sales, Yokogawa Fluid Imaging Technologies

What is particle analysis?

Particle analysis involves taking a sample of a substance and analyzing the individual particles of the sample. The basic goal is to determine the constituents of a mixture and to differentiate between particles in the sample. Typical measurements of particles that are of interest include: particle size distribution, particle count, various measurements of particle shape, and particle concentration.

This year, in lieu of their annual conference and exhibition, Powder & Bulk Solids hosted a virtual conference: The Powder Show: Digital Flow.

Steve Bowen, Yokogawa Fluid Imaging Technologies Director of Sales, presented a short webinar at this event, titled "Measuring Sphericity & Aggregates of Powders Dispersed in Fluids". The talk is still available to view, alongside other presentations, on The Powder Show website.

On Tuesday, October 13th, at 3pm CDT, Yokogawa Fluid Imaging Sales Director, Steve Bowen, will be presenting a webinar on Flow Imaging Microscopy at the NAPIM (National Association of Printer Ink Manufacturers) Fall Technical Conference, part of InkWeek 2020.

Register for the conference here.

Metal Additive Manufacturing (also known as 3-D printing) requires carefully engineered compound metal powders in order to make high-quality end products. Authors Farzadfar et al. have determined a process for manufacturing a bimodal powder that has both the desired particle density and still flows freely.

Hunting Energy Services (HES), Subsea Technologies Division, is a manufacturer of subsea hydraulic products for the oil and gas industry. Their suite of hydraulic valve products includes applications for drilling control, production control, and Intervention Workover Control Systems (IWOCS).

A research group at Iowa State University is studying the use of Magnetic Ionic Liquids (MILs) as a tool to isolate foodborne pathogens in liquid suspensions. Previously, they showed the ability of MILs to capture a species of Salmonella.

Their new work, published in the current issue of Analytical and Bioanalytical Chemistry, extends the previous work on MILs to the capture of several Gram-negative bacteria of importance to food, agricultural and clinical testing, including subspecies of Salmonella and E. coli O157:H7.

What CAN'T be run through the FlowCam? The list below shows the majority of substances that have been imaged and analyzed on the FlowCam over the course of our 20 year history. Is your application on the list? If not, send us a sample, and we'll add it! Keep reading below to learn more about some of our favorite applications.