Surface modification of nanoparticles for sustaining
sensitivity of surface-enhanced raman spectrometric
measurements in salinated environment

D 2020

Surface modification of nanoparticles for sustaining sensitivity of surface-enhanced raman spectrometric measurements in salinated environment

TYCOVA, Anna; Jan PRIKRYL; Petr VAŇHARA; Karel KLEPARNIK; Frantisek FORET et al.

Základní údaje

Originální název

Surface modification of nanoparticles for sustaining sensitivity of surface-enhanced raman spectrometric measurements in salinated environment

Autoři

TYCOVA, Anna; Jan PRIKRYL; Petr VAŇHARA; Karel KLEPARNIK a Frantisek FORET

Vydání

Ostrava, 11th International Conference on Nanomaterials - Research & Application (NANOCON 2019), od s. 428-433, 6 s. 2020

Nakladatel

TANGER Ltd

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

21000 2.10 Nano-technology

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Forma vydání

elektronická verze "online"

Odkazy

URL

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/20:00118542

Organizační jednotka

Přírodovědecká fakulta

ISBN

978-80-87294-95-6

ISSN

Klíčová slova anglicky

Bi-ligand; nanoparticle; saline solution; stability; surface-enhanced Raman spectrometry

Příznaky

Recenzováno

Změněno: 18. 1. 2022 18:23, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

Surface-enhanced Raman spectrometry (SERS) represents a powerful method for analysis of a broad spectrum of analytes ranging from inorganic ions to biomolecules of high complexity. It combines the potential of Raman spectrometry for a definite identification of an analyte with remarkable sensitivity achieved by the surface enhancement effect occurring on metal nanoparticles. While low ionic strength influences positively the sensitivity of the SERS measurement, a higher level of inorganic salts leads to fast ruining of colloidal character, which completely devastates the effect of the surface enhancement. The common stabilization of nanoparticles by a layer of polymers has a negative impact on the SERS sensitivity since it shields the nanoparticle surface from the analytes. In this work, we aim at the development of the bi-ligand system of nanoparticles surface modification for improved stability of colloid in saline solution at sustaining the potential for sensitive SERS analyses. The proposed system relies on the binding of 3-mercaptopropionic acid and thiolated polyethylene glycol in a suitable ratio onto the nanoparticle surfaces. While the short chains of the acid sustain the accessibility of the surface for analytes, the polymeric structures act as a steric barrier preventing colloid aggregation.

Citovat

TYCOVA, Anna; Jan PRIKRYL; Petr VAŇHARA; Karel KLEPARNIK a Frantisek FORET. Surface modification of nanoparticles for sustaining sensitivity of surface-enhanced raman spectrometric measurements in salinated environment. Online. In 11th International Conference on Nanomaterials - Research & Application (NANOCON 2019). Ostrava: TANGER Ltd, 2020, s. 428-433. ISBN 978-80-87294-95-6. Dostupné z: https://doi.org/10.37904/nanocon.2019.8480.

@inproceedings{1763478,
   author = {Tycova, Anna and Prikryl, Jan and Vaňhara, Petr and Kleparnik, Karel and Foret, Frantisek},
   address = {Ostrava},
   booktitle = {11th International Conference on Nanomaterials - Research & Application (NANOCON 2019)},
   doi = {https://doi.org/10.37904/nanocon.2019.8480},
   keywords = {Bi-ligand; nanoparticle; saline solution; stability; surface-enhanced Raman spectrometry},
   howpublished = {elektronická verze "online"},
   language = {eng},
   location = {Ostrava},
   isbn = {978-80-87294-95-6},
   pages = {428-433},
   publisher = {TANGER Ltd},
   title = {Surface modification of nanoparticles for sustaining sensitivity of surface-enhanced raman spectrometric measurements in salinated environment},
   url = {https://doi.org/10.37904/nanocon.2019.8480},
   year = {2020}
}

TY  - CONF
ID  - 1763478
AU  - Tycova, Anna - Prikryl, Jan - Vaňhara, Petr - Kleparnik, Karel - Foret, Frantisek
PY  - 2020
TI  - Surface modification of nanoparticles for sustaining sensitivity of surface-enhanced raman spectrometric measurements in salinated environment
PB  - TANGER Ltd
CY  - Ostrava
SN  - 9788087294956
KW  - Bi-ligand
KW  - nanoparticle
KW  - saline solution
KW  - stability
KW  - surface-enhanced Raman spectrometry
UR  - https://doi.org/10.37904/nanocon.2019.8480
N2  - Surface-enhanced Raman spectrometry (SERS) represents a powerful method for analysis of a broad spectrum of analytes ranging from inorganic ions to biomolecules of high complexity. It combines the potential of Raman spectrometry for a definite identification of an analyte with remarkable sensitivity achieved by the surface enhancement effect occurring on metal nanoparticles. While low ionic strength influences positively the sensitivity of the SERS measurement, a higher level of inorganic salts leads to fast ruining of colloidal character, which completely devastates the effect of the surface enhancement. The common stabilization of nanoparticles by a layer of polymers has a negative impact on the SERS sensitivity since it shields the nanoparticle surface from the analytes. In this work, we aim at the development of the bi-ligand system of nanoparticles surface modification for improved stability of colloid in saline solution at sustaining the potential for sensitive SERS analyses. The proposed system relies on the binding of 3-mercaptopropionic acid and thiolated polyethylene glycol in a suitable ratio onto the nanoparticle surfaces. While the short chains of the acid sustain the accessibility of the surface for analytes, the polymeric structures act as a steric barrier preventing colloid aggregation.
ER  -

TYCOVA, Anna; Jan PRIKRYL; Petr VAŇHARA; Karel KLEPARNIK a Frantisek FORET. Surface modification of nanoparticles for sustaining sensitivity of surface-enhanced raman spectrometric measurements in salinated environment. Online. In \textit{11th International Conference on Nanomaterials - Research \&{} Application (NANOCON 2019)}. Ostrava: TANGER Ltd, 2020, s.~428-433. ISBN~978-80-87294-95-6. Dostupné z: https://doi.org/10.37904/nanocon.2019.8480.

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