Inkjet Microarray Technology

Invented by Arrayjet

An Introduction to Microarrays…

The Inkjet Advantage

Arrayjet’s microarrayers use patented inkjet technology for high-precision, high-density, high-speed printing.






How does Arrayjet technology work?

For inkjet microarrays, aspiration is separate from deposition. Both take place within the same contained printing environment.

Sample Loading

Samples are loaded into the base of the printhead via a JetSpyder™ – Arrayjet’s patented aspiration device. As little as 0.5 µl of 12 or 32 samples can be aspirated at once – enough to print 2000 x 100 pL spots.

Aspirator detaches

After sample loading, the JetSpyder™ detaches from the printhead, which is cleaned and prepped for printing.

On-the-fly Inkjet Printing

The printhead glides across the substrates at 0.35 m/s, depositing sample without stopping or making contact. This is how we achieve our industry-leading speed.

How do Inkjet Microarrays compare?

Alternative approaches to printing microarrays include spotting with pins or dispensing via glass tips.

On-the-fly printing is up to 10x faster than glass tips, and 100x faster than pins. Stop-start sample deposition limits speed. Pin-spotting action for sample deposition is very slow.
Contactless deposition, compatible with a wide range of surfaces. Contactless deposition, compatible with a wide range of surfaces. Contact printing creates ‘donut’ shaped spots, invites cross contamination, and can damage print surfaces.
Inkjet printhead is highly robust, and also commercially available. Fragile glass tips break often and are expensive to replace. Pins are easily broken or bent and need replacing.
Print layout can be customised at the touch of a button. Print layout is limited. Print layout is fixed and requires a different set of pinheads for each array design.
Compatible with most biological samples, and optimal for printing small molecules. Compatible with many biological samples. Incompatible with higher-viscosity samples that can block pins.
Inkjet Liquid HandlinG
Tailored For You 

Explore our range of research applications...


ArrayPlex™ Spot-On-Spot Microarrays

Arrayjet’s unique inkjet approach to bioprinting allowed us to develop ArrayPlex™ – our patented microarray platform. With ArrayPlex™ we can create multi-layered microarrays, allowing two libraries to be screened against each other. This takes throughput to the next level, generating millions of data points each week.

ArrayPlex™ is compatible with all sample types and detects hits at an equal or higher sensitivity to ELISA.

Introducing Mercury

The fastest, most versatile microarray instruments
Harnessing over 20 years of microarray innovation from our expert team of scientists and engineers, Mercury systems boast unrivalled speed, precision, reproducibility, and quality assurance in real-time.

Let's work together

Our scientists will work to understand your needs and deliver the right solution for you. If you have an idea for a project – we’re excited to hear it. 
Our services

Outsource your work to our Arrayjet Advance lab team...

Access our microarray application expertise and the fastest, most versatile microarray printers, when you outsource your development and manufacturing projects to us.
Frequently asked questions

Questions about our technology?

News & Resources

Recent Updates...


Methods for Small Molecule Screening


Small Molecule Microarrays for Drug Discovery


RPPA: Transition from contact pin spotting of cell lysates and protein extracts to high-speed, contactless inkjet printing



Arrayjet’s ArrayPlex™ platform selected by Immunome for use in its discovery of targeted cancer therapies

Arrayjet’s patented spot-on-spot microarray screening technology is available for customers to adopt in-house and via Arrayjet’s CRO/CMO services.


Argonaute, vault, and ribosomal proteins targeted by autoantibodies in systemic lupus erythematosus

University of Washington & CDI Laboratories