Separation of Methicillin-Resistant from Methicillin-Susceptible Staphylococcus aureus by Electrophoretic Methods in Fused Silica Capillaries Etched with Supercritical Water
| Authors | |
|---|---|
| Year of publication | 2014 |
| Type | Article in Periodical |
| Magazine / Source | Analytical Chemistry |
| MU Faculty or unit | |
| Citation | |
| Web | http://pubs.acs.org/doi/abs/10.1021/ac502254f |
| Doi | http://dx.doi.org/10.1021/ac502254f |
| Field | Analytic chemistry |
| Keywords | FLIGHT MASS-SPECTROMETRY; BACTERIAL ADHESION; ZONE-ELECTROPHORESIS; ISOELECTRIC POINT; CHROMOGENIC AGAR; SPECTRA MRSA; UV DETECTION; MICROORGANISMS; STRAINS; IDENTIFICATION |
| Description | Identification and prevention of Staphylococcus aureus-caused infections may benefit from a fast and dependable method to distinguish between the methicillin-resistant (MRSA) and methicillin susceptible (MSSA) S. aureus strains. The current methods involving polymerase chain reaction and/or other molecular tests are usually laborious and time-consuming. We describe here a fasgt and low-cost method employing capillary zone electrophoresis (CZE) to distinguish between MRSA and MSSA. The method makes use of a supecritical water-treated fused silica capillary, the inner surface of which has subsequently been modified with (3 glycidyloxypropyl)trimethoxysilane. With optimized proportions fo suitable additives to the background electrolyte, a CZE separation of MRSA from MSSA may be completed within 12 min. The cells were baseline-resolved, and resolution was determined to be 3.61. the isoelectric points of MSSA and MRSA were found to be the same for both groups of these strains, pI= 3.4. |
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