With new advances in infectious illness, antifouling surfaces, and environmental microbiology analysis comes the necessity to perceive and management the buildup and attachment of bacterial cells on a floor. Thus, we make use of intrinsic phase-shift reflectometric interference spectroscopic measurements of silicon diffraction gratings to non-destructively observe the interactions between bacterial cells and abiotic, microstructured surfaces in a label-free and real-time method. We conclude that the mixture of particular materials traits (i.e., substrate floor cost and topology) and traits of the bacterial cells (i.e., motility, cell cost, biofilm formation, and physiology) drive micro organism to stick to a selected floor, typically resulting in a biofilm formation. Such information might be exploited to foretell antibiotic efficacy and biofilm formation, and improve surface-based biosensor growth, in addition to the design of anti-biofouling methods.