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Updated: Feb 5, 2026

Antibiotic Dereplication Using the Antibiotic Resistance Platform
Published on: October 17, 2019
Altering polymerization temperature of antibiotic-laden cement can increase porosity and subsequent antibiotic
Jeffrey Sundblad1, Mary Nixon2, Nancy Jackson3
1, Neenah, USA. Jeff.sundblad@gmail.com.
Purpose:
To examine the role of polymerization temperature on the cement porosity and antibiotic elution to optimize antibiotic release from antibiotic-laden cement (ABLC).
Methods:
Elution profiles of vancomycin and tobramycin from ABLC discs prepared with low- and high-dose antibiotic dosages, cured at 8, 21, and 37 °C, and placed in phosphate buffered saline (PBS) at 37 °C were examined. Samples were collected at one, four, eight, 24, 72, 168, 336, and 1008 hours to calculate the quantity of antibiotic eluted. Porosity was determined by MicroCT analysis.
Results:
ABLC porosity and antibiotic elution were increased up to five times the amount eluted from room temperature discs (p < 0.05). Low-dose ABLC group saw decreased but similar porosity at 8 °C and 21 °C compared to cement cured at 37 °C (p < 0.001). High-dose ABLC group porosities were all significantly different (p < 0.02).
Conclusions:
Altering the polymerization temperature of ABLC led to more porous constructs yielding increased antibiotic elution.
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