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Microparticle suspensions and bacteria laden droplets: Are they the same in terms of wetting signature?

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dc.contributor.authorMelayil, Kiran Raj
dc.contributor.authorMisra, Sirshendu
dc.contributor.authorMitra, Sushanta K.
dc.date.accessioned2021-01-18T21:58:57Z
dc.date.available2021-01-18T21:58:57Z
dc.date.issued2021-01-17
dc.descriptionThis document is the Accepted Manuscript version of a Published Work that appeared in final form in LANGMUIR, copyright © American Chemical Society after peer review and technical editing by publisher. To access the final edited and published work see https://doi.org/10.1021/acs.langmuir.0c03365.en
dc.description.abstractAdhesion behavior of microbial pathogens on commonly encountered surfaces is one of the most pertinent questions now. We present the characterization of bacteria laden droplets and quantify the adhesion forces on highly repellent surfaces with the help of a simple experimental setup. Comparing the force signature measured directly using an in-house capillary deflection based droplet force apparatus, we report an anomalous adhesion behavior of live bacteria (E. coli) laden droplets on repellent surfaces, which stands in stark contrast to the observed adhesion signature when the doping agent is changed to inert microparticles or the same bacteria in an incapacitated state. We showed that the regular contact angle measurements using optical goniometry is unable to differentiate between the live bacteria and the dead ones (including microparticles) and thus delineate its limitations and the complementary nature of the adhesion measurements in understanding the fundamental interfacial interaction of living organisms on solid surfaces.en
dc.description.sponsorshipNSERC Alliance Grant ALLRP 551068-20en
dc.identifier.urihttps://doi.org/10.1021/acs.langmuir.0c03365
dc.identifier.urihttp://hdl.handle.net/10012/16693
dc.language.isoenen
dc.publisherACSen
dc.subjectmicroparticleen
dc.subjectadhesionen
dc.subjectwettingen
dc.subjectbacteriaen
dc.subjectE. colien
dc.titleMicroparticle suspensions and bacteria laden droplets: Are they the same in terms of wetting signature?en
dc.typeArticleen
dcterms.bibliographicCitationKiran Raj M, Sirshendu Misra, and Sushanta K. Mitra Langmuir Article ASAP DOI: 10.1021/acs.langmuir.0c03365en
uws.contributor.affiliation1Faculty of Engineeringen
uws.contributor.affiliation1Faculty of Scienceen
uws.contributor.affiliation2Mechanical and Mechatronics Engineeringen
uws.contributor.affiliation2Waterloo Institute for Nanotechnology (WIN)en
uws.peerReviewStatusRevieweden
uws.scholarLevelFacultyen
uws.scholarLevelPost-Doctorateen
uws.scholarLevelGraduateen
uws.typeOfResourceTexten

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