About the Authors

David L. Williams

dlw33@cam.ac.uk

Affiliation Department of Veterinary Medicine, Cambridge University, Cambridge, United Kingdom

Brenda K. Mann

Affiliations SentrX Animal Care, Inc., Salt Lake City, Utah, United States of America, Department of Bioengineering, University of Utah, Salt Lake City, Utah, United States of America

Competing Interests

B.K. Mann is employed by and owns stock in SentrX Animal Care where the hydrogel used in the study was developed. D.L. Williams has no competing interests. This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: DLW BKM. Performed the experiments: DLW. Analyzed the data: DLW BKM. Contributed reagents/materials/analysis tools: DLW BKM. Wrote the paper: DLW BKM.