Michael Tinnesand, Lead Editor
Emily Bones, Contributing Editor
Christine Suh, Contributing Editor
Cornithia Harris, Art Director
Therese Geraghty, Copy Editor
Lorinda Bullock, Senior Web Editor
Fred Colon, Web Associate
Kevin McCue, Administrative Editor
Teacher’s Guide Team
William Bleam, Team Leader
Barbara Sitzman, Editor
Steve Long, Editor
Pamela Diaz, Editor
Susan Cooper, Content Reading Consultant
La Trease E. Garrison, Excecutive Vice
President, Education Division
Terri Taylor, Director, Learning and Career
Ethan Sullivan, Chair, Collierville, TN
Scott Goode, Columbia, SC
Stacey Haas, Ballston Spa, NY
Kristine Lynn Rademacher-Gorovitz,
Kathleen M. Cooper, Varnville, SC
ChemMatters (ISSN 0736–4687) is published four times per year (Oct/Nov, Dec/
Jan, Feb/March, and April/May) by the
American Chemical Society at 1155 16th
St., NW, Washington, DC 20036–4800.
Periodicals postage paid at Washington, DC,
and additional mailing offices. POSTMASTER:
Send address changes to ChemMatters
Magazine, ACS Office of Society Services,
1155 16th St., NW, Washington, DC 20036.
Subscription to ChemMatters is a membership benefit of the American Association of
Chemistry Teachers (AAC T). More information
Prices in the United States, Canada, and
Mexico: $16 per subscription. For more information, please contact ACS Member Services,
P.O. Box 182426, Columbus, OH 43218-
2426; tel.: 1-800-333-9511; fax: 1-614-447-
3671. Information is also available online at:
The American Chemical Society assumes no
responsibility for the statements and opinions
advanced by contributors. Views expressed
are those of the authors and do not necessarily represent the official position of the
American Chemical Society. The activities in
ChemMatters are intended for high school students under the direct supervision of teachers.
The American Chemical Society cannot be
responsible for any accidents or injuries that
may result from conducting the activities without proper supervision, from not specifically
following directions, from ignoring the cautions
contained in the text, or from not following
standard safe laboratory practices.
All rights reserved. No part of this publication
may be reproduced, stored in a retrieval system, or transmitted in any form by any means,
now known or later developed, including, but
not limited to: electronic, mechanical, photocopying, recording, or otherwise, without
prior permission from the copyright owner.
Requests for permission should be directed in
writing to: email@example.com.
© Copyright 2018
American Chemical Society
Canadian GST Reg. No. 127571347
Printed in the USA
Connecting Chemistry and Art
2 ChemMatters | FEBRUARY/MARCH 2018
@ChemMatters @ACSChemMatters Connect with ChemMatters:
ChemMatters magazine is celebrating 35 years in publication!
What better month than February, the month for love, to send our
wonderful readers a big blue indigo heart from the ChemMatters team!
Read more about the blue in indigo on page 16.
We hope you enjoy this issue and many future issues.
Thank you for your suggestions and story ideas!
Keep them coming!
Humans have been creating dyes for fabric for nearly 5,000 years. All of the early dyes were from
natural substances, such as berries and roots. Starting in the 19th century, chemists began to
understand how new colors could be created in the laboratory. Today, indigo dye can be produced
both naturally and synthetically, but the result, as in this tie-dye fabric, can be beautiful.