I read this paper1 by which states specific growth rate of bacteria in biofilm is different than that of planktonic cells. How do I modify the typical BioTimer assay2 to compile with it?
1- A Method for Quantitative Determination of Biofilm Viability. Ken Welch , Yanling Cai and Maria Strømme (2012)
2- BioTimer Assay, a new method for counting Staphylococcus spp. in biofilm without sample manipulation applied to evaluate antibiotic susceptibility of biofilm. Fabrizio Pantanella a, Piera Valenti a, Alessandra Frioni a, Tiziana Natalizi a, Luana Coltella b, Francesca Berlutt (2008)