Skip to main content

The VSP-G1 nanoparticle generator

the standard in nanoparticle generation

A table-top, user-friendly nanoparticle generator that is the basis of all VSPARTICLE products. With the VSP-G1, a stable and clean flow of well-defined pure nanoparticles can be generated, without the use of precursors and surfactants. Producing the desired particles becomes as easy as pushing a button.

aerodynamic size
particle size:

Quick & easy-to-use

any (semi) conductive material

based on Spark Ablation Technology

stable & reproducible

clean process: no surfactants or precursors

Mix & Match materials

Material versatility is key to prepare model catalyst samples, VSPARTICLE's technology enables you to change the material easy and fast thanks to the use of electrodes. This allows the creation of particles of bi-metals, nano-alloys or materials that are immiscible in bulk state. Source material is supplied in the form of electrodes. The electrodes work with a click system, making it easy and quick to switch materials. 


click to enlarge


Material versatility

With the VSP-G1 you can use any kind of (semi)conductive material for your nanoparticles and use argon, nitrogen or air as a carrier gas.The VSP-G1 uses two electrodes as base material to generate sub 20 nm particles.  All solid (semi)conductive materials that can be processed into electrodes can be used in this device.


Explore the material database        Contact us

User friendly and safe-by-design

Nanoparticles at the push of a button


Spark ablation technology is a physics based process, generating pure particles in a very controlled setting, without the use of chemicals. Our co-founder Andreas Schmidtt-Ott invented the technology in 1988 and was then developed into an easy to use device. The spark ablation process used inside the VSP-G1 is a purely physical process that only requires electricity, a carrier gas and electrode material to produce clean nanoparticles. No additional chemicals are required for the production or to stabilize the particles in the aerosol. The produced nanoparticles can be directly incorporated into the next process step or applied in a product by, for example, impaction, electrostatic precipitation or filtering. This way the unique physical properties of the nanoparticles are directly available in the product. The carrier gas can simply be recirculated, minimizing the environmental impact of the process.


Read more 


Shift size distribution

by adjusting gas flow

Contact us for more information

Output stability

Modular system

easily connect the VSP-G1 to VSP deposition modules

Technical specifications

110-240 V AC

Casing ca. 47x34x15 cm - Reactor added height ca. 10 cm

19 kg

Gas inlet/outlet
10 mm tubes (with Swagelok connectors)


Manual operation & remote control via RS232


Flow rate
1-30 L/min

Supported: Ar or N2 (recommended purity 5.0)
Unsupported: He, Ne, Xe, Kr
Contact VSPARTICLE for use of reactive gases such as air, H2.

Electrode material
Comes with Cu electrodes.
Various other metals (e.g. Ag, Au, Pt, W, Ni), semiconductors and carbon are possible.

Primary particle size
1 atom to 20 nm
Ablation rate
~0.01-100 mg/h (material dependent)

Typical particle concentration
108-1011 cm-3

  • Very small particles 0 – 20nm 
  • Pure particles, no surfactants 
  • Material versatility: all (semi) conductive materials, metal oxides, carbon. 
  • Mix & Match: combine pure source materials, alloys and mixes 
  • High stability, 98% in long term experiments 
  • High concentration. Output up to 20mg/hour 
  • Ease of use, tune output with just a few settings
  • Reproducible output by using the same settings 
  • Mimics real world 
  • Atmospheric pressure and room temperature 
  • Single particles, high surface area 
  • Air as carrier gas possible 
  • Physiological realistic testing 
  • Compatible with air liquid interfaces like Vitrocell 

How can I mimic real life situations with the system? 

The VSP-G1 is worldwide the only device that can make gas-phase atomic clusters and nanoparticles at standard pressure and temperature, for any (semi) conductive material. Furthermore, it is possible to shift the whole size distribution under 5 nm (only primary particles). 


What particle sizes can I make?

The primary particle size is 0-20 nm. 


What are the current studies conducted with the VSP-G1 in nanotoxicology research?

Currently we are conducting research together with the Dutch Health Institute (RIVM) with Flemming Cassee, who uses the G1 both as a reference method and uses radioactive gold particles to study the biodistribution of clusters in mice. Furthermore, we have projects to determine the toxicity of FeO nanoparticles together with Delft University and carbon nanoparticle toxicity with Roel Schins at the University of Dusseldorf.


How stable is the output?

The VSP-G1 can be tuned and standard deviation can be reduced to below 2% of the output.  


What materials are compatible? Can I make oxides and alloys?

The VSP-G1 can be used with any (semi-) conductive material, amongst which carbon, copper and gold. The material is used in the system in de form of electrodes. By adding air to the gasflow, oxides can be made. Learn more about compatible materials here.

How to order?

The VSP-G1 Metal Aerosol Generator has bench-top dimensions and is designed to fit most lab-tables and fume hoods. If you wish to set it up in your own lab, you can opt for either buying or leasing the nanoparticle generator. It is also possible to work in our lab or let vsparticle provide you with some test samples. Just contact our sales team or complete the contact form to see which option fits your situation and research best. 


Request pricing