Upcoming SRNML Community Events
June 22: iLab system 'soft launch' for select internal users
June 24: Keyence Ultramicroscope available for scheduling
July 1st: iLab system Go-live for all users (account registration will be required)
Hours of Operation
Monday - Friday
8:00 a.m. - 5:00 p.m.
Phone: 405-325-4391
Mailing address
Samuel Roberts Noble Microscopy Laboratory
George Lynn Cross Hall
770 Van Vleet Oval
University of Oklahoma
Norman, OK 73019-6131
Samuel Roberts Noble Microscopy Laboratory (SRNML)

The Samuel Roberts Noble Microscopy Laboratory, the core imaging facility of the University of Oklahoma, is a central shared use facility offering access to instrumentation, training, and service using advanced light microscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM).
Our mission is to provide effective and efficient access to core imaging and analytical characterization technologies. We welcome all OU-Norman, OUHSC, and OMRF student, faculty, and staff researchers at our centralized location the OU-Norman main campus. Clients from other universities, foundations and industry are welcome to use this equipment as well, and such work may be done on an invoice or contract basis.
In addition to instrument access, SRNML personnel offer advice, hands-on training, education, and research collaboration. The SRNML aims to promote, enable, and encourage cutting-edge education and research using the core’s instrumentation.
We have a range of sample preparation equipment available; our staff work with users and provide training. Please see our equipment and getting started pages for more information, and don’t hesitate to contact us.
Starting July 1st, 2022 - transition to iLab
Starting July 1st, all researchers internal and external to OU must register and access lab resources through our new iLab portal.
Researchers with existing iLab accounts through other facilities should be able to login to our core facility's iLab page with your current account.
Starting July 1st, the Samuel Roberts Noble Microscopy Lab at University of Oklahoma is excited to start using an online system to streamline the process of ordering and billing for core service requests. All facility users are invited to use the system, which requires a one-time registration as discussed below. Once you are registered, the system will enable you to place service requests, provide required approvals, and monitor progress.
Researchers with existing iLab accounts through other facilities should be able to login to our core facility's iLab page with your current account.
Step 1 | Step 2 | Step 3 | Step 4 |
Create an iLab Account. | Log into the SRNML iLab site with your iLab credentials | Submit a consultation request for service to initiate a project | Reserve time on equipment for training, assisted use, or self-use |
See our Lab Usage page for details and ask questions if we can help!
SRNML Personnel and Contact Info

Dr. Andy Elwood Madden
Director of SRNML
Schultz Chair of Geosciences
General Inquiries
Email: amadden@ou.edu

Dr. Tingting Gu
Associate Director for Advanced Light Microscopy
Assistant Professor of Biology
Contact for Light Microscopy
Email: tingting.gu-1@ou.edu

Dr. Preston Larson
Research Associate for Electron Microscopy
Contact for Scanning Electron Microscopy
Email: plarson@ou.edu

Dr. Julian Sabisch
Research Scientist for Electron Microscopy
Contact for Transmission Electron Microscopy
Email: jsabisch@ou.edu