Matches in SemOpenAlex for { <https://semopenalex.org/work/W2912017894> ?p ?o ?g. }
Showing items 1 to 92 of
92
with 100 items per page.
- W2912017894 abstract "Research into the molecular origin of surface-enhanced Raman spectra (SERS) of bacteria is a crucial step in assessing the future of SERS-based discrimination and identification of bacteria in clinical analysis, food quality control, etc. Previous studies have revealed that at 785 nm excitation wavelength SERS of bacterial cells placed on a solid surface functionalized with in-situ grown aggregated gold nanoparticles covered with SiO2 originate from a mixture of 6 purine derivatives (adenine, guanine, AMP, hypoxanthine, xanthine, and uric acid) that are released by the cells into the medium. The aim of the present work was to investigate whether such interpretation is possible with a different class of SERS substrates: silver nanoparticle sols at excitation wavelengths of 785 and 532 nm. The suspension of the Escherichia coli DH5α strain was used as a model bacterium. Sols of silver nanoparticles were obtained by reducing silver nitrate in the presence of alkaline hydroxylamine hydrochloride. Number-weighted mean hydrodynamic diameter of the particles was 43±2 nm. We confirm that at both excitation wavelengths the spectra can be best described as a superposition of 4 purine derivatives: adenine, guanine, hypoxanthine, and xanthine. Importantly, we have discovered that 1) the spectra of the purine mixture are characteristic of viable cells only; 2) due to the variations in the concentrations of purine metabolites released by the cells into the surrounding medium the spectra of a bacterial strain can vary significantly when a silver nanoparticle sol is used as a SERS substrate." @default.
- W2912017894 created "2019-02-21" @default.
- W2912017894 creator A5015987773 @default.
- W2912017894 creator A5025868702 @default.
- W2912017894 creator A5027730664 @default.
- W2912017894 creator A5065825812 @default.
- W2912017894 creator A5066749412 @default.
- W2912017894 creator A5086932952 @default.
- W2912017894 creator A5089276951 @default.
- W2912017894 date "2018-12-31" @default.
- W2912017894 modified "2023-09-23" @default.
- W2912017894 title "Molecular origin of surface-enhanced Raman spectra of E. coli suspensions excited at 532 and 785 nm using silver nanoparticle sols as sers substrates" @default.
- W2912017894 doi "https://doi.org/10.24075/brsmu.2018.088" @default.
- W2912017894 hasPublicationYear "2018" @default.
- W2912017894 type Work @default.
- W2912017894 sameAs 2912017894 @default.
- W2912017894 citedByCount "2" @default.
- W2912017894 countsByYear W29120178942021 @default.
- W2912017894 countsByYear W29120178942022 @default.
- W2912017894 crossrefType "journal-article" @default.
- W2912017894 hasAuthorship W2912017894A5015987773 @default.
- W2912017894 hasAuthorship W2912017894A5025868702 @default.
- W2912017894 hasAuthorship W2912017894A5027730664 @default.
- W2912017894 hasAuthorship W2912017894A5065825812 @default.
- W2912017894 hasAuthorship W2912017894A5066749412 @default.
- W2912017894 hasAuthorship W2912017894A5086932952 @default.
- W2912017894 hasAuthorship W2912017894A5089276951 @default.
- W2912017894 hasBestOaLocation W29120178941 @default.
- W2912017894 hasConcept C104317684 @default.
- W2912017894 hasConcept C104819515 @default.
- W2912017894 hasConcept C113196181 @default.
- W2912017894 hasConcept C120665830 @default.
- W2912017894 hasConcept C121332964 @default.
- W2912017894 hasConcept C13965031 @default.
- W2912017894 hasConcept C155672457 @default.
- W2912017894 hasConcept C169573571 @default.
- W2912017894 hasConcept C171250308 @default.
- W2912017894 hasConcept C178790620 @default.
- W2912017894 hasConcept C181199279 @default.
- W2912017894 hasConcept C185592680 @default.
- W2912017894 hasConcept C192562407 @default.
- W2912017894 hasConcept C2777790068 @default.
- W2912017894 hasConcept C2778301229 @default.
- W2912017894 hasConcept C2779470414 @default.
- W2912017894 hasConcept C2780472540 @default.
- W2912017894 hasConcept C2781116151 @default.
- W2912017894 hasConcept C31499863 @default.
- W2912017894 hasConcept C40003534 @default.
- W2912017894 hasConcept C43617362 @default.
- W2912017894 hasConcept C512185932 @default.
- W2912017894 hasConcept C55493867 @default.
- W2912017894 hasConceptScore W2912017894C104317684 @default.
- W2912017894 hasConceptScore W2912017894C104819515 @default.
- W2912017894 hasConceptScore W2912017894C113196181 @default.
- W2912017894 hasConceptScore W2912017894C120665830 @default.
- W2912017894 hasConceptScore W2912017894C121332964 @default.
- W2912017894 hasConceptScore W2912017894C13965031 @default.
- W2912017894 hasConceptScore W2912017894C155672457 @default.
- W2912017894 hasConceptScore W2912017894C169573571 @default.
- W2912017894 hasConceptScore W2912017894C171250308 @default.
- W2912017894 hasConceptScore W2912017894C178790620 @default.
- W2912017894 hasConceptScore W2912017894C181199279 @default.
- W2912017894 hasConceptScore W2912017894C185592680 @default.
- W2912017894 hasConceptScore W2912017894C192562407 @default.
- W2912017894 hasConceptScore W2912017894C2777790068 @default.
- W2912017894 hasConceptScore W2912017894C2778301229 @default.
- W2912017894 hasConceptScore W2912017894C2779470414 @default.
- W2912017894 hasConceptScore W2912017894C2780472540 @default.
- W2912017894 hasConceptScore W2912017894C2781116151 @default.
- W2912017894 hasConceptScore W2912017894C31499863 @default.
- W2912017894 hasConceptScore W2912017894C40003534 @default.
- W2912017894 hasConceptScore W2912017894C43617362 @default.
- W2912017894 hasConceptScore W2912017894C512185932 @default.
- W2912017894 hasConceptScore W2912017894C55493867 @default.
- W2912017894 hasLocation W29120178941 @default.
- W2912017894 hasLocation W29120178942 @default.
- W2912017894 hasOpenAccess W2912017894 @default.
- W2912017894 hasPrimaryLocation W29120178941 @default.
- W2912017894 hasRelatedWork W1971424687 @default.
- W2912017894 hasRelatedWork W2015083611 @default.
- W2912017894 hasRelatedWork W2069234607 @default.
- W2912017894 hasRelatedWork W2182745509 @default.
- W2912017894 hasRelatedWork W2321636454 @default.
- W2912017894 hasRelatedWork W2499863835 @default.
- W2912017894 hasRelatedWork W2516116177 @default.
- W2912017894 hasRelatedWork W2614341780 @default.
- W2912017894 hasRelatedWork W3210069523 @default.
- W2912017894 hasRelatedWork W4221115134 @default.
- W2912017894 isParatext "false" @default.
- W2912017894 isRetracted "false" @default.
- W2912017894 magId "2912017894" @default.
- W2912017894 workType "article" @default.