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Details

Autor(en) / Beteiligte
Titel
SERS-based sensor for the detection of sexually transmitted pathogens in the male swab specimens: A new approach for clinical diagnosis
Ist Teil von
  • Biosensors & bioelectronics, 2021-10, Vol.189, p.113358-113358, Article 113358
Ort / Verlag
Elsevier B.V
Erscheinungsjahr
2021
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
  • The surface-enhanced Raman scattering (SERS) has been widely tested for its usefulness in microbiological studies, providing many information-rich spectra which are a kind of ‘whole-organism fingerprint’ and enabling identification of bacterial species. Here we show, previously not considered, the comprehensive SERS-chemometric analysis of five bacterial pathogens, namely Neisseria gonorrhoeae, Mycoplasma hominis, Mycoplasma genitalium, Ureaplasma urealyticum, and Haemophilus ducreyi, all being responsible for sexually transmitted diseases (STDs). In the designed biosensor, the direct, intrinsic format of the spectroscopic analysis was adopted for the SERS-based screening of gonorrhea and chlamydiosis due to vibrational analysis of men's urethra swabs. Our experiments demonstrated that the applied method enables identification the individual species of the Neisseria genus with high accuracy. In order to differentiate the sexually transmitted pathogens and to classify the clinical samples of male urethra swabs, three multivariate methods were used. In the external validation the created models correctly classified the men's urethra swabs with prediction accuracy reaching 89% for SIMCA and 100% for PLS-DA. As a result, the developed protocol enables: (i) simple and non-invasive analysis of clinical samples (the collection of urethra swabs specimens could be carried out at different points of care, such as doctor's office); (ii) fast analysis (<15 min); (iii) culture-free identification; (iv) sensitive and reliable SERS-based diagnosis of STD. The simplicity of the developed detection procedure, supported by high sensitivity, reproducibility, and specificity, open a new path in the improvement of the point-of-care applications. •The SERS-chemometric differentiation of pathogens responsible for the sexually transmitted diseases.•Sensitive, direct, and non-invasive SERS-based screening of gonorrhea and chlamydiosis screening.•Rapid (< 15 min) and culture and growth-free method.•The possibility to identify bacteria at genus and species level.
Sprache
Englisch
Identifikatoren
ISSN: 0956-5663
eISSN: 1873-4235
DOI: 10.1016/j.bios.2021.113358
Titel-ID: cdi_proquest_miscellaneous_2535107423

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