Microtul

Custom Microinjection Pipettes

Insect, Aquatic, and Mammalian:
Eggs, Larval and Adult

Mosquito, Drosophila, Moth, Butterfly, Silkworm, Zebrafish, Squid, Killifish, Medaka, Limulus, Ctenophore, Tardigrade, Mouse, Rat, Vole, Hamster, Equine, Bovine, Canine, Lavage, Bee Insemination, Coral Polyp Feeding, and the list goes on!

Microscope image of spermatazoa microinjection using a Microtul custom micropipette
Microtul

micropipette production
lab consulting

We specialize in helping you assemble the perfect combination of tools for your lab, customized for specific research challenges, including electrophysiology, and microinjection applications.

A lab worker using microinjection equipment in a laboratory setting
Microtul

About the maker

I’m Adair Oesterle, the founder of Microtul.I've worked in the biotechnology industry for 25+ years as an application engineer. My journey in research began at the Marine Biological Labs located in Woods Hole, MA.My expertise includes technical support, scientific writing, manufacturing and beta testing biomedical research instruments, conducting transgenic research, and the production of custom micropipettes. I am a specialist in microinjection applications and am the author of the Pipette Cookbook (2005 – 2025 editions).My experience has been further enriched through contracting opportunities with the International Atomic Energy Agency, Google/Verily, Lawrence Livermore National Labs, the Massachusetts Institute of Technology, UCSF, and Smithsonian/USDA alliance.I am eager to collaborate with you to assess your research requirements and assist in developing the ideal laboratory configuration and microtools.

USFCR Verified Vendor
Adair Oesterle, holding a medium format film camera
Microtul

Contact

We're happy to answer questions about custom micropipettes, microinjection training and consultation, and equipment recommendations.phone: +1 (805) 701-5145
email: [email protected]
Or, use this contact form:

Thank you

Thank you for reaching out to Microtul. We look forward to discussing how we can help you and your lab.

Microtul

Custom Micropipette Worksheet

Design your custom micropipettes here. We'll reach out to you to discuss details before production.

We'll respond shortly via email with a price quote. We're happy to discuss your application and our recommendations based on Microtul's extensive experience. Custom pipettes: Clean, non-sterile, for research use only. Not for human use.

Microtul

Capillary Glass Worksheet

Specify the capillary glass you need. We'll reach out to you to discuss details.

We'll respond shortly via email with a price quote.
We're happy to discuss your application and our recommendations based on Microtul's extensive experience. Microtul Capillary Glass has fire-polished ends unless otherwise specified.

Microtul

Events

Come meet with us at upcoming events:

SPIE Photonics West 2026

17 - 22 January 2026
San Francisco

Biophysics 2026

21 - 25 February 2026
San Francisco

M-CAMS 2026

12 - 13 March 2026
West Lafayette, Indiana

Advanced Research Training Courses, Marine Biological Laboratory

April - October 2026
Woods Hole, Massachusetts

20th Transgenic Technology Meeting

15 - 18 September 2026
Leiden, The Netherlands

Entomology 2026

8 - 11 November 2026
Columbus, Ohio

Society for Neuroscience 2026

14 - 18 November 2026
Washington, D.C.

Cell Bio 2026

12 - 16 December 2026
San Diego

Microtul

Anatomy of a Pipette

Available options and dimensions

TIP Options
blunt, polished, beveled or spiked
TAPER Options
straight or bent

TIP ID (Inner Diameter)
Standard: 1.0µm – 125µm
Available Range: 0.02µm to 300µm
TAPER
Standard: 5mm – 10mm
Available range: 2mm – 20mm

SHAFT
Standard: 5cm
Available Range: 3cm – 15cm
SHOULDER
Standard: 3mm – 4mm
Available range: 2mm – 6mm