UM Chapter of Sigma Xi

University of Michigan Chapter
A 501(c)(3) Tax Deductible Organization since 1903.

Sigma Xi, The Scientific Research Honor Society is the world’s largest
multidisciplinary honor society for scientists and engineers. Its mission
is to enhance the health of the research enterprise, foster integrity in
science and engineering, and promote the public understanding of science
for the purpose of improving the human condition.

The Greek letters "sigma" and "xi" form the acronym of the Society's motto,
"Spoudon Xynones," which translates as "Companions in Zealous Research."

The University of Michigan Chapter received Honorable Mention for its
activities in the Fiscal Year 2021-2022

Deadline was March 15, 2024 for Spring 2024 Initiation [however, nominations cn be made at any time during the year]..
Contact Dr. Buchtel (gusb [at] if you have questions or need information on election to the Society. The Chapter is grateful to Cathleen Zepelin for her financial support of the new member process. Active members of the Chapter have received information about how to make nominations.

The 2024 Teacher-of-the-Year has been chosen: Mr. Michael Lovelace (Ann Arbor Skyline High School)
Click HERE for a copy of the Program for the Awards Ceremony
[Teacher-of-the-Year and Science Fair Winners]


Wednesday April 17, 2024 (5:00 PM)
Teacher of the Year and Science Fair winners


SCIENCE CAFÉ [Sponsored by the Chapter]
Organized by the University of Michigan Museum of Natural Science
Artificial Intelligence
April 24, 2024 (5:30-7:00 PM)
Conor O'Neill's Irish Pub [Ann Arbor]
Wednesday May 1, 2024 (4:30 PM)

PROGRAM [in progress]

Notable Webinar in 2022

PLASTICS 101 (or 1, 2, 5)
Wednesday May 25, 2022 @ 4:00 PM
A recording is available; If you missed the Webinar,
contact gusb [at] and ask for the link

Webinar on Recycling and the Science behind the
solution to our problems with plastic and other recyclables.

Dr. Anne McNeil (U-M Chemistry Dept)
Mr. Bryan Weinert (Recycle Ann Arbor)
Some resources about plastics and recycling
Cost of items taken to Drop-Off Station. [Added 09/17/2023]

Banquets and Annual Meetings since 2006

2006 Banquet
2007 Banquet
2008 Banquet
2009 Banquet
2010 Banquet
2011 Banquet
2012 Banquet
2013 Banquet
2014 Banquet
2015 Banquet
2016 Banquet
2017 Banquet
2018 Banquet
2019 Banquet
2020-2021 Award Ceremonies and Annual Meeting

In May 2008, The University of Michigan Chapter of Sigma Xi was given
501(c)(3) status, formally backdated to our founding year, 1903.
Donations to the chapter's scientific and educational activities are
tax-deductible. Tax ID # 38-1741160

The Chapter has benefited in the past from donations from Pfizer Pharaceutical
Company and others in support of our programs and initiatives. In the recent past,
Dr. Peter Woo (retired chemist from Pfizer) has been the major donor for the
Teacher-of-the-Year Awards, and we are very grateful for his support.
The chapter is also very grateful for donations from Ms. Cathleen Zepelin
in honor of Harold Zepelin, a Sigma Xi member, who died in 2006;
these funds are used to support the recruitment of new members to the Society,

Send your comments, suggestions and questions about this Web page
to the Chapter Webmaster (

For information about Sigma Xi activities elsewhere, visit the national Sigma Xi Web Page.

Renewal of Membership Dues and Information about Initiation Fees

Keyed In [Sigma Xi Blog]


Sigma Xi Values and Their Relation to Diversity, Equity, and Inclusion [March 2021]

Locate a Chapter [updated 03/12/2023]
Names state-by-state.

You are also invited to make a Tax-Deductible Donation to the Chapter using this link. Thanks!

Criteria for Full and Associate Membership level

This Web Page was last updated on January 12, 2024 - Add information about New 2024 Member Nominations and Teacher-of-Year nominations