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Fast detection of Listeria monocytogenes through a nanohybrid quantum dot complex

dc.contributor.authorDonoso W.
dc.contributor.authorCastro R.I.
dc.contributor.authorGuzmán L.
dc.contributor.authorLópez-Cabaña Z.
dc.contributor.authorNachtigall F.M.
dc.contributor.authorSantos L.S.
dc.date.accessioned2020-09-02T22:16:41Z
dc.date.available2020-09-02T22:16:41Z
dc.date.issued2017
dc.identifier10.1007/s00216-017-0481-9
dc.identifier.citation409, 22, 5359-5371
dc.identifier.issn16182642
dc.identifier.urihttps://hdl.handle.net/20.500.12728/4287
dc.descriptionListeria monocytogenes is a recognized foodborne pathogen that causes listeriosis in susceptible consumers. Currently, the detection systems for Listeria in food detect live and dead bacteria, being the viable microorganisms most relevant for their ability to cause sickness in the population at risk. For this reason, a new nanohybrid compound was developed for the optical detection of Listeria that was based on polyamidoamine dendrimers functionalized with an auxotrophic cofactor (lipoic acid), together with the coupling of fluorescent semiconductor crystals (quantum dots). The nanohybrid sensor has a detection limit for viable L. monocytogenes of 5.19 × 103 colony-forming units per milliliter under epifluorescence microscopy. It was specific when used among other pathogens commonly found in food. © 2017, Springer-Verlag GmbH Germany.
dc.language.isoen
dc.publisherSpringer Verlag
dc.subjectDendrimers
dc.subjectListeria monocytogenes
dc.subjectOptical detection
dc.subjectQuantum dots
dc.subjectDendrimers
dc.subjectDiseases
dc.subjectFood microbiology
dc.subjectNanocrystals
dc.subjectNanostructured materials
dc.subjectPathogens
dc.subjectSemiconductor quantum dots
dc.subjectColony forming units
dc.subjectDetection limits
dc.subjectEpifluorescence microscopy
dc.subjectFluorescent semiconductors
dc.subjectFood-borne pathogens
dc.subjectListeria monocytogenes
dc.subjectOptical detection
dc.subjectPolyamidoamine dendrimers
dc.subjectListeria
dc.subjectantiinfective agent
dc.subjectcadmium derivative
dc.subjectcadmium telluride
dc.subjectquantum dot
dc.subjecttellurium
dc.subjectbioassay
dc.subjectchemistry
dc.subjectdrug effect
dc.subjectfood contamination
dc.subjectfood control
dc.subjectisolation and purification
dc.subjectListeria monocytogenes
dc.subjectprocedures
dc.subjectstandards
dc.subjectAnti-Bacterial Agents
dc.subjectBiological Assay
dc.subjectCadmium Compounds
dc.subjectFood Contamination
dc.subjectFood Microbiology
dc.subjectListeria monocytogenes
dc.subjectQuantum Dots
dc.subjectTellurium
dc.titleFast detection of Listeria monocytogenes through a nanohybrid quantum dot complex
dc.typeArticle


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