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Yasmeen, Nabila; Etienne, Mathieu; Sharma, Piyush Sindhu; El-Kirat-Chatel, Sofiane; Helú, Mariela Brites; Kutner, Wlodzimierz
Analytica chimica acta, 12/2021, Letnik: 1188Journal Article
We fabricated an electrochemical molecularly imprinted polymer (MIP) chemosensor for rapid identification and quantification of E. coli strain using 2-aminophenyl boronic acid as the functional monomer. This strain is a modified Gram-negative strain of Escherichia coli bacterium, an ordinary human gut component. The E. coli strongly interacts with a boronic acid because of porous and flexible polymers of the cell wall. The SEM imaging showed that the bacteria template was partially entrapped within the polymeric matrix in a single step. Moreover, this imaging confirmed E. coli K-12 cell template extraction effectiveness. The prepared MIP determined the E. coli K-12 strain up to 2.9 × 104 cells mL−1. The interference study performed in the presence of E. coli variants expressing different surface appendages (type 1 fimbriae or Antigen 43 protein) or Shewanella oneidensis MR1, another Gram-negative bacteria, demonstrated that the bacterial surface composition notably impacts sensing properties of the bacteria imprinted polymer. Display omitted •E. coli E2152 was successfully imprinted in a polymer by 2-aminophenylboronic acid and aniline co-electropolymerization.•The bacteria template was entrapped in the resulting molecularly imprinted polymer in a single step.•Thus prepared MIP film-based electrochemical chemosensor determined E. coli E2152 up to 2.9 × 104 cells/mL.•E. coli E2152 determination was selective versus bacteria of other surface properties.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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