Articles by John R. Gillis - Pharmaceutical Technology

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Articles by John R. Gillis

John R. Gillis


Articles
Establishing a Minimum Incubation Time for Biological Indicators
December 2, 2013

The industry lacks an accepted method for establishing a minimum incubation time (MIT) of less than seven days for biological indicators (BIs). The authors propose an MIT method that provides a means for reproducible determination of BI grow-out time.

Understanding Biological Indicator Grow-Out Times—Part II
June 2, 2013

The authors report on the range and distribution of grow-out times for biological indicators exposed to sublethal sterilization processes.

Biological Indicator Growout Times: The Impact on Establishing a Reduced Incubation Time Protocol
May 1, 2012

The authors provide a review of test methodology and standards, including current industry and regulatory proposals, for biological indicator growout times.

Understanding Biological Indicator Grow-Out Times
January 2, 2010

This study used biological indicators containing Geobacillus stearothermophilus spores and a new technology to continuously monitor incubated BIs and record nonsterile results.

Innovation in Biological Indicator Evaluator Resistometer Vessel Technology
August 2, 2007

The authors examine advances in the design and the application of biological indicator evaluator resistometer vessels used to measure the resistance of bacterial spores in monitoring sterilization processes.

The Effect of Carrier Material on the Measured Resistance of Spores
May 1, 2007

A biological indicator (BI) measures the effectiveness of the sterilization process to which it is subjected. Factors such as the test organism, the packaging, the culture material, and the test system all influence a BI's resistance. Carrier material is an often-overlooked factor that also influences BI resistance. The authors examine various solid and liquid carriers, describe their properties, and investigate how they influence BI resistance.

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