Study of the Human Albumin Role in the Formation of a Bacterial Biofilm on Urinary Devices Using QCM-D

Cristina García-Bonillo, Robert Texidó, Guillermo Reyes-Carmenaty, Joan Gilabert-Porres, Salvador Borrós

Producció científica: Article en revista indexadaArticleAvaluat per experts

11 Cites (Scopus)


Catheter-associated urinary tract infections (CAUTIs) are the most common health care-associated infections due to rapid bacterial colonization+ and biofilm formation in urinary catheters. This behavior has been extensively documented in medical devices. However, there is a few literature works on CAUTI providing a model that allows the exhaustive study of biofilm formation in a urinary environment. The development of an effective model would be helpful to identify the factors that promote the biofilm formation and identify strategies to avoid it. In this work, we have developed a model to test biofilm formation on urinary medical device surfaces by simulating environmental and physical conditions using a quartz crystal microbalance with dissipation (QCM-D) module with an uropathogenic strain. Moreover, we used the developed model to study the role of human albumin present in artificial urine at high concentrations because of renal failure or heart-diseases in patients. Despite model limitations using artificial urine, these tests show that human albumin can be considered as a promoter of biofilm formation on hydrophobic surfaces, being a possible risk factor to developing a CAUTI.

Idioma originalAnglès
Pàgines (de-a)3354-3364
Nombre de pàgines11
RevistaACS Applied Bio Materials
Estat de la publicacióPublicada - 18 de maig 2020


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