Exploring the potential of high resolution inductively coupled plasma mass spectrometry towards non-destructive control and validation of electroless gold nanoparticles onto silicon nanowires hybrids

2019 ◽  
Vol 11 (31) ◽  
pp. 3987-3995 ◽  
Author(s):  
Yuliya E. Silina ◽  
Marcus Koch ◽  
Petra Herbeck-Engel ◽  
Igor Iatsunskyi
Keyword(s):  
Gold Nanoparticles ◽  
Silicon Nanowires ◽  
Hydrofluoric Acid ◽  
Inductively Coupled Plasma ◽  
Effective Strategy ◽  
Inductively Coupled ◽  
Plasma Mass Spectrometry ◽  
Hybrid Silicon ◽  
Electroless Gold ◽  
Non Destructive

We present a novel effective strategy for non-destructive control and validation of sensors consisting of hybrid silicon nanowires deposited with gold nanoparticles (AuNPs/SiNWs) produced via a hydrofluoric acid-assisted electroless fabrication method.

scholarly journals Number Concentration of Gold Nanoparticles in Suspension: SAXS and spICPMS as Traceable Methods Compared to Laboratory Methods

Nanomaterials ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 502 ◽  
Author(s):  
Alexander Schavkan ◽  
Christian Gollwitzer ◽  
Raul Garcia-Diez ◽  
Michael Krumrey ◽  
Caterina Minelli ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Inductively Coupled Plasma ◽  
Number Concentration ◽  
Laboratory Methods ◽  
Condensation Particle Counter ◽  
Inductively Coupled ◽  
Differential Mobility Analysis ◽  
X Ray Scattering ◽  
Plasma Mass Spectrometry ◽  
Product Manufacturing

The industrial exploitation of high value nanoparticles is in need of robust measurement methods to increase the control over product manufacturing and to implement quality assurance. InNanoPart, a European metrology project responded to these needs by developing methods for the measurement of particle size, concentration, agglomeration, surface chemistry and shell thickness. This paper illustrates the advancements this project produced for the traceable measurement of nanoparticle number concentration in liquids through small angle X-ray scattering (SAXS) and single particle inductively coupled plasma mass spectrometry (spICPMS). It also details the validation of a range of laboratory methods, including particle tracking analysis (PTA), dynamic light scattering (DLS), differential centrifugal sedimentation (DCS), ultraviolet visible spectroscopy (UV-vis) and electrospray-differential mobility analysis with a condensation particle counter (ES-DMA-CPC). We used a set of spherical gold nanoparticles with nominal diameters between 10 nm and 100 nm and discuss the results from the various techniques along with the associated uncertainty budgets.

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