Automatized and desktop AC-susceptometer for the in situ and real time monitoring of magnetic nanoparticles’ synthesis by coprecipitation | Zendy

M. P. FernándezGarcía | Zendy; J. M. Teixeira | Zendy; P. Machado | Zendy; Mariana Oliveira | Zendy; João M. Maia | Zendy; Clara Pereira | Zendy; André M. Pereira | Zendy; Cristina Freire | Zendy; João P. Araújo | Zendy

Open Access

Automatized and desktop AC-susceptometer for the in situ and real time monitoring of magnetic nanoparticles’ synthesis by coprecipitation

Author(s) -

M. P. FernándezGarcía,

J. M. Teixeira,

P. Machado,

Mariana Oliveira,

João M. Maia,

Clara Pereira,

André M. Pereira,

Cristina Freire,

João P. Araújo

Publication year - 2015

Publication title -

review of scientific instruments

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.605

H-Index - 165

eISSN - 1089-7623

pISSN - 0034-6748

DOI - 10.1063/1.4918723

Subject(s) - coprecipitation , nanoparticle , materials science , magnetic nanoparticles , iron oxide nanoparticles , oxide , in situ , nuclear magnetic resonance , nanotechnology , computer science , chemical engineering , physics , meteorology , engineering , metallurgy

The main purpose of this work was to design, develop, and construct a simple desktop AC susceptometer to monitor in situ and in real time the coprecipitation synthesis of magnetic nanoparticles. The design incorporates one pair of identical pick-up sensing coils and one pair of Helmholtz coils. The picked up signal is detected by a lock-in SR850 amplifier that measures the in- and out-of-phase signals. The apparatus also includes a stirrer with 45°-angle blades to promote the fast homogenization of the reaction mixture. Our susceptometer has been successfully used to monitor the coprecipitation reaction for the synthesis of iron oxide nanoparticles.

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