New Ferrofluids from Ferrotec Feature High Magnetization, Longer Life

Ferrotec, a supplier of materials, components, and precision system solutions, has developed a new series of polyethylene glycol (PEG) based ferrofluids that feature high magnetization and longer life than its water-based ferrofluids, opening the door to new areas of research in biomedical and other fields. 

Ferrofluids are a unique class of material. A ferrofluid is a stable colloidal suspension of sub-domain magnetic nanoparticles in a liquid carrier. The particles, which have an average size of about 100 Angstrom (10 nm), are coated with a stabilizing dispersing agent (surfactant) that prevents particle agglomeration even when a strong magnetic field gradient is applied to the ferrofluid. The PBG fluid is composed of PEG coated magnetite nanoparticles with primary particle diameter of 10 nm. 

“With roots from the NASA space program, ferrofluid has been an inspirational driver for breakthrough technologies and applications ranging from manufacturing to electronics and even bio-medical uses. Polyethylene glycol (PEG) based ferrofluids offer high magnetization, high colloidal stability, low nonspecific binding, and biocompatibility,” said Barry Moskowitz, general manager for Ferrotec’s Electronic Devices Business Group. “For our customers that have used our EMG series of water-based ferrofluids, the PBG series will provide longer life.”  

Ferrotec’s PBG series ferrofluids are available in a wide range of magnetization levels from 66 to 990 gauss with viscosity values 1 to 40 cP. 

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