U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications by: Elise Pyfrom (Assoc)

Search Title, Abstract, Conference, Citation, Keyword or Author
Displaying 1 - 4 of 4

Characterizing rapid changes in the prevalence and concentration of key compounds in Philadelphia's fentanyl supply, March-November 2024

June 22, 2025
Author(s)
Karli Hochstatter, Talia Nadel, Edward Sisco, Sarah Laurel, Tori McDowell, Elise Pyfrom, Meghan Appley, Fernando Montero
Objective: The objective of this observational epidemiological study is to examine recent shifts in the street opioid supply of the largest U.S. open-air drug market, including changes in prevalence and concentration of key compounds. Methods: From March

UV Stabilizer BTMPS in the Illicit Fentanyl Supply in 9 US Locations

February 5, 2025
Author(s)
Chelsea Shover, Morgan Godvin, Meghan Appley, Elise Pyfrom, Fernando Montero Castrillo, Karli Hochstatter, Neil Garg, Adam Koncsol, Joseph Friedman, Caitlin Molina, Ruby Romero, Brendan Harshberger, Jordan Spoliansky, Candace Winstead, Edward Sisco
Bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate (BTMPS) belongs to a class of molecules called hindered amine light stabilizers that are used in plastics manufacturing and as adhesives or sealants.1 BTMPS has not been studied in humans or approved for human
Was this page helpful?