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Fluorescent lactose-derived catanionic aggregates: synthesis, characterisation and potential use as antibacterial agents

dc.contributor.authorBETTOSCHI, Alexandre
dc.contributor.authorBRISSON, Alain
dc.contributor.authorCALTAGIRONE, Claudia
dc.contributor.authorFALCHI, Angela M.
dc.contributor.authorISAIA, Francesco
dc.contributor.authorLIPPOLIS, Vito
dc.contributor.authorLOI, Giovanni
dc.contributor.authorLOI, Monica
dc.contributor.authorMURGIA, Sergio
dc.contributor.authorPILIA, Roberta
dc.contributor.authorSERRA, Corrado
dc.contributor.authorTAN, Sisareuth
dc.date.accessioned2020-09-03T07:56:29Z
dc.date.available2020-09-03T07:56:29Z
dc.date.issued2016
dc.identifier.issn2046-2069
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/10911
dc.description.abstractEnThe spread of infections from multi-resistant bacteria in hospitals around the world is raising at an alarming rate. With the increasing capacity of bacteria to develop resistance to traditional antibiotics that target a particular metabolic pathway inside the cell, the use of nanoparticles as therapeutic agents is gaining importance because of their ability to attack bacterial membranes without evoking resistance. We have synthesized the catanionic surfactants Coum12-Coum18, based on fluorescent lactose-derivative organic salts using low-cost starting materials. In water, they self-assemble spontaneously to form stable aggregates at a physiological pH. The antibacterial properties of Coum12-Coum18 were investigated towards multi-drug-resistant Gram-positive bacteria (Staphylococcus aureus and Enterococcus faecalis) and Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa). Compound Coum18 was found to have both a bacteriostatic and a bactericidal activity towards Gram-positive bacteria, although the values of both the MIC and MBC (32 mu g mL(-1)) suggest only a topical use of the molecule. The valuable results that were found provide a challenging task for further investigation aimed at the development of this class of antibacterial drugs. In vitro fluorescence microscopy gave insight into the interaction between the aggregates and the cellular membranes on HeLa and CHO cells.
dc.language.isoen
dc.title.enFluorescent lactose-derived catanionic aggregates: synthesis, characterisation and potential use as antibacterial agents
dc.typeArticle de revue
dc.identifier.doi10.1039/c6ra02511k
dc.subject.halChimie/Matériaux
bordeaux.journalRSC Advances
bordeaux.page23340-23344
bordeaux.volume6
bordeaux.hal.laboratoriesInstitut de Chimie & de Biologie des Membranes & des Nano-objets (CBMN) - UMR 5248*
bordeaux.hal.laboratoriesInstitut de Chimie & de Biologie des Membranes & des Nano-objets (CBMN, UMR 5248)
bordeaux.issue28
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
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