Open AccessTowards a method for quantitative evaluation of nanoparticle from suspensions via microarray printing and SEM analysis
Author(s) -
Francesca Bennet,
Loïc Burr,
David Schmid,
V. D. Hodoroaba
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1953/1/012002
Subject(s) - nanoparticle , materials science , scanning electron microscope , relative humidity , nanotechnology , composite material , physics , thermodynamics
As part of the development of a library of accurate and efficient methods for measurement of nanoparticle properties, we develop and optimize a method for the efficient analysis of nanoparticle size distribution from suspensions via microprinting and digital analysis of electron microscopy (SEM and TEM) images, with the ultimate aim of automated quantitative concentration analysis (calculated from drop volume). A series of different nanoparticle suspensions (gold, latex, and SiO 2 in varying sizes and concentrations) were printed onto TEM grids in a 4 x 4 array in the concentration range 7×10 8 to 1×10 11 nanoparticles/mL and imaged with SEM. Concentrations and printing conditions (temperature, relative humidity) were varied in order to minimize the coffee-ring effect.