Denise Callahan
Sodus,NY
Summary
Hardworking and competent senior lab technician with 33 years of experience and extensive knowledge of laboratory operations. Punctual, professional and focused, driven to perform successfully in solitary role or as part of team.
Overview
33
33
years of professional experience
Work History
Microbiology Laboratory Technician IV and V
Bausch & Lomb Inc.
Rochester, NY
03.1998 - Current
- Primary analyst for ISO/FDA biocidal, bioburden, preservative efficacy testing and validations to support released and development of new product formulations.
- Qualified trainer for all aspects of biocidal, bioburden, preservative efficacy, media preparation and growth promotion.
- Maintains the laboratory culture depository. Responsible for the preparation and the availability of compendial and research organisms.
- Composition of reports and study memos via Laboratory Information Management (LIMS), Microsoft Word, Excel and Documentum.
- Responsible for peer review of testing including: biocidal, preservative efficacy, bioburden, regimen and environmental monitoring of the manufacturing plant.
Microbiology Laboratory Technician III
Bausch & Lomb
Rochester, New York
08.1994 - 03.1998
- Biocidal efficacy testing according to ISO/FDA guidelines
- USP sterility testing including membrane filtration and direct inoculation via AmSCO/ Steris VHP-1000 bio-decontamination unit and la Calhene isolators.
- Maintenance of stock and working cultures including the operation of the Vitek Automicrobic Identification System.
Microbiology Laboratory Technician I
Bausch & Lomb
Rochester, NY
09.1990 - 03.1992
- Responsibilities included all aspects of media, reagents and sterile dry goods preparation, growth promotion and decontamination of medical waste.
Education
Associate of Applied Science - Medical Laboratory Technology
State University of New York at Morrisville
Morrisville, NY05-1990
Skills
- Over 33 years of microbiology experience
- Excellent organizational and documentation skills compliant with GMP, GLP, FDA, ISO and USP guidelines
- Excels at multitasking, maintaining complex testing schemes and meeting rigid timelines
- Highly motivated team player as well as an independent self-starter
- Strong communication skills, verbally and written among colleagues and upper management
Professional Publications
- Corwin-Buell J, Callahan D, McGrath D, Millard K, Mosehauer G, Phatak N. " A Comparative Evaluation of the Antimicrobial Efficacy of Five Multipurpose Solutions and One Hydrogen Peroxide Solution against Bacterial and Fungal Compendial Organisms" Manuscript submitted to Clinical Ophthalmology, November 2023
Presentations
- Corwin-Buell J, Callahan D, McGrath D, Millard K. " A Comparative Evaluation of the Antimicrobial Efficacy of Four Multi-purpose Solutions and a Hydrogen Peroxide Solution against Bacterial and Fungal Compendial Organisms" Presentation AOA, 2022
- David B, Callahan D, Bair J, Norton S. "Evaluation of the Biocidal Efficacy of Multi-purpose Solutions against Challenges with Gram Negative Organisms in a Lens Case" ARVO 2013
- Walsh P, David B, Callahan D, McGrath D, Norton S. "Evaluation of Multipurpose Solutions for In Vitro Biocidal Efficacy using Ocular Clinical Microbial Isolates and Rate of Disinfection" GLSL 2012
- David B, Callahan D, Bair J, Walsh P, Norton S. "Evaluation of the Biocidal Efficacy of Multipurpose Solutions in the Presence of a Contact Lens" BCLA 2012
- Walsh P, David B, Callahan D, Norton S. "Evaluation of Multipurpose Solutions for In Vitro Biocidal Efficacy against the ISO Specified Organisms and Various Microbial Pathogens Including Antibiotic Resistant Strains" BCLA 2012
- Walsh P, David B, Callahan D, McGrath D, Mason J, Norton S."Rate of Disinfection of Various multipurpose Solutions and a Hydrogen Peroxide Solution against Clinically Relevant Bacterial and Fungal Species" ARVO 2011
- David B, Callahan D, McGrath D, Strassburg J, Hilfiker T, Tackabury J. "Evaluation of Multi-purpose Solutions for In Vitro Biocidal Efficacy against a Challenge of Ocular Clinical Isolates including Methicilin-Resistant Staphylococcus aureus and Methicillin-Resistant Staphylococcus epidermidis Strains" ICOC 2010
- David B, Callahan D, Strassburg J, Hilfiker T, Norton S. "An Evaluation of the Rate of Disinfection of Variious Multi-purpose Solutions and a Hydrogen Peroxide Solution using the ISO 14729 Standard" BCLA 2010
Posters Presentations
- Corwin-Buell J, Callahan D, McGrath D, Millard K. "Disinfection Efficacy Testing of a Triple Disinfectant System in a Investigational Multi-purpose Solution Challenged against Five Bacterial and Fungal Compendial Organisms" ARVO, 2022
- Corwin-Buell J, Callahan D, McGrath D, Millard K. "Evaluation of Antimicrobial Efficacy of a New Multi-purpose Solution Challenged against Bacteria Associated with Corneal Infiltrative Events" AAO 2022
Timeline
Microbiology Laboratory Technician IV and V
Bausch & Lomb Inc.
03.1998 - Current
Microbiology Laboratory Technician III
Bausch & Lomb
08.1994 - 03.1998
Microbiology Laboratory Technician I
Bausch & Lomb
09.1990 - 03.1992
Associate of Applied Science - Medical Laboratory Technology
State University of New York at Morrisville