Homochiral metal-organic frameworks functionalized SERS substrate for atto-molar enantio-selective detection

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F20%3A43921243" target="_blank" >RIV/60461373:22310/20:43921243 - isvavai.cz</a>
Alternative codes found
RIV/44555601:13440/20:43895985
Result on the web
<a href="https://doi.org/10.1016/j.apmt.2020.100666" target="_blank" >https://doi.org/10.1016/j.apmt.2020.100666</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apmt.2020.100666" target="_blank" >10.1016/j.apmt.2020.100666</a>

Result language
angličtina
Original language name
Homochiral metal-organic frameworks functionalized SERS substrate for atto-molar enantio-selective detection
Original language description
In this work, the plasmon-active gold grating functionalized by homochiral metal-organic frameworks (HMOF) L- or D-MOF-6 was proposed as unprecedent tool for enantio-selective SERS-based discrimination. The gold grating surface possesses the homogeneous distribution of plasmon intensity along the active sample area, responsible for excitation of consistent SERS signal. L- and D- lactic acids enantiomers were used for the preparation of enantio-selective surface grafted MOF layer with opposite chiral-entrapping selectivity. The HMOFs films, grafted onto gold gratings provide the selective enantiomers entrapping from solution and contribute to the chemical enhancement of SERS. Obtained SERS substrates were able to selectively entrap the (R)-(+)- and (S)-(−)-methylphenylsulfoxide (model analyte) from solution and recognize them with atto-molecular concentration limits and perfect reproducubility. Moreover, the possibility of enantiomers detection and recognition in their mixtures was also demonstrated with similar recognition limits. The unprecedented detection and enantioselective recognition were further demonstrated on the biorelevant analytes, including complex sample.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20501 - Materials engineering

Project
<a href="/en/project/GA18-26170S" target="_blank" >GA18-26170S: Light triggerable p-conjugated polymers for ON/OFF reversible conductivity switching</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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