Biofilm Referencing Lesson

Two men, Nick A. (left) and Nigel (right), sit at a white table, engaging in a lively and friendly conversation. Both wear checkered shirts and lavalier microphones, suggesting a filmed discussion or interview. Nick holds tissue samples in one hand and gestures animatedly, while Nigel smiles in response. Each has a white mug labeled with their name and a purple star logo. The background is a bright white, creating a clean and professional studio setting.
Resources

Biofilm Referencing Lesson

Sector: Diagnostics
Topic: Bio Break
YouTube video thumbnail

When reviewing evidence for a medical device, a single citation can shape an entire submission. In this Bio Break episode, Nick shares a biofilm referencing lesson that has stayed with him since the early 2000s. The story begins with a book of proceedings from a 1999 biofilm meeting and leads to an important reminder about accuracy, documentation, and the realities of regulatory work before online databases were common.

A story from early biofilm registration work

At the time, Nick was helping companies support antimicrobial biofilm claims. Standard test methods did not yet exist, so he relied on peer reviewed literature and methods he could find in conference manuscripts. One manuscript in the 1999 proceedings book described a useful approach and seemed appropriate to reference in an FDA submission.

When the FDA reviewed the package, they asked to see the full article. The request sounded simple. In practice, it was not. This was a period before widespread digital access. Nick had cited the method, but he did not actually have the full paper.

Turning one citation into a real world lesson

To respond, Nick contacted the conveners of the original conference. Peter Gilbert, whom he describes as the late great Peter Gilbert, provided his personal copy of the book so Nick could supply the missing article. That moment turned into a lasting biofilm referencing lesson that still influences how he approaches evidence in medtech.

Today the book lives on his desk. It serves as a reminder to always keep complete references on hand and to verify sources before using them in a regulated context. The story also offers a look at the challenges facing teams working on antimicrobial claims in the early days of biofilm science.

Why this referencing story still matters

Nigel closes the conversation by reflecting on how the experience captures both the history of biofilm research and the importance of accurate documentation. Nick emphasizes that even a small oversight can slow a submission and that good habits make a difference. The episode shows how a simple mistake became a valuable practice that he still follows.

For more real stories from medical device development, explore additional Bio Break episodes on our site.

Penicillin mechanism explained using food analogy with cashew bar representing beta-lactam antibiotic binding to apple representing bacterial enzyme

Antibiotics changed medicine forever, but many people still wonder how penicillin works at a biological level. Nick and Nigel break down the science behind one of the most important antibiotics ever discovered.

Patient undergoing optical eye imaging exam using a slit lamp style diagnostic device for detailed corneal and anterior eye analysis.

I was recently looking through the OPTICA trade journal Optics and Photonics News – specifically its summary of “Optics in 2025.” A few highlights were of particular interest to me in terms of their potential applicability to future medical devices.

Thumbnail with the words “Designing Out Bias” above an ECG waveform and a gloved hand holding a surgical instrument, highlighting bias in medical device design.

Ariana Wilson and Mark Drlik explore how bias can enter the development process and why engineers and manufacturers must actively work to prevent it.

Healthcare worker disposing hazardous medical waste into a biohazard container in a hospital setting

Did you know that 5-8% of total national carbon footprints come from the healthcare sector? Much of this (around 80%) is general waste – such as from office work – and the rest (~20%) requires special handling due to its dangerous nature.