Formation of Gold Nanoparticles inside a Hydrogel by Multiphoton Photoreduction for Plasmonic Sensing

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • Keiki Muranaka
  • Takuro Niidome
  • Maria Leilani Torres-Mapa
  • Alexander Heisterkamp
  • Mitsuhiro Terakawa

Organisationseinheiten

Externe Organisationen

  • Keio University
  • Kumamoto University
  • Laser Zentrum Hannover e.V. (LZH)
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)751-760
Seitenumfang10
FachzeitschriftPLASMONICS
Jahrgang18
Ausgabenummer2
Frühes Online-Datum22 Feb. 2023
PublikationsstatusVeröffentlicht - Apr. 2023

Abstract

Plasmonic sensing using metal nanoparticles has received considerable attention because of its high sensitivity for detection. In this study, gold nanoparticles (AuNPs) were formed near the focal point of femtosecond laser pulses inside a hydrogel containing gold chloride and glutamine for plasmonic sensing. The presence of glutamine suppressed the formation of AuNPs in the region outside of the laser focal point. The proposed method for the formation of AuNPs enables spatially selective fabrication of structures with optical properties attributed to localized surface plasmon resonance. Typical biomolecules present in sweat were detected using hydrogels with the fabricated structures. Among the biomolecules, the peaks of the absorbance spectra of the AuNPs inside hydrogels exhibited a blue shift only for urea. This result indicates that urea can be detected using hydrogels with fabricated structures. The method presented in this study facilitates spatially selective fabrication of biosensing structures inside the bulk of hydrogels.

ASJC Scopus Sachgebiete

  • Biochemie, Genetik und Molekularbiologie (insg.)
  • Biotechnologie
  • Biochemie, Genetik und Molekularbiologie (insg.)
  • Biophysik
  • Biochemie, Genetik und Molekularbiologie (insg.)
  • Biochemie

Zitieren

Formation of Gold Nanoparticles inside a Hydrogel by Multiphoton Photoreduction for Plasmonic Sensing. / Muranaka, Keiki; Niidome, Takuro; Torres-Mapa, Maria Leilani et al.
in: PLASMONICS, Jahrgang 18, Nr. 2, 04.2023, S. 751-760.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Muranaka, K, Niidome, T, Torres-Mapa, ML, Heisterkamp, A & Terakawa, M 2023, 'Formation of Gold Nanoparticles inside a Hydrogel by Multiphoton Photoreduction for Plasmonic Sensing', PLASMONICS, Jg. 18, Nr. 2, S. 751-760. https://doi.org/10.1007/s11468-023-01804-1
Muranaka, K., Niidome, T., Torres-Mapa, M. L., Heisterkamp, A., & Terakawa, M. (2023). Formation of Gold Nanoparticles inside a Hydrogel by Multiphoton Photoreduction for Plasmonic Sensing. PLASMONICS, 18(2), 751-760. https://doi.org/10.1007/s11468-023-01804-1
Muranaka K, Niidome T, Torres-Mapa ML, Heisterkamp A, Terakawa M. Formation of Gold Nanoparticles inside a Hydrogel by Multiphoton Photoreduction for Plasmonic Sensing. PLASMONICS. 2023 Apr;18(2):751-760. Epub 2023 Feb 22. doi: 10.1007/s11468-023-01804-1
Muranaka, Keiki ; Niidome, Takuro ; Torres-Mapa, Maria Leilani et al. / Formation of Gold Nanoparticles inside a Hydrogel by Multiphoton Photoreduction for Plasmonic Sensing. in: PLASMONICS. 2023 ; Jahrgang 18, Nr. 2. S. 751-760.
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abstract = "Plasmonic sensing using metal nanoparticles has received considerable attention because of its high sensitivity for detection. In this study, gold nanoparticles (AuNPs) were formed near the focal point of femtosecond laser pulses inside a hydrogel containing gold chloride and glutamine for plasmonic sensing. The presence of glutamine suppressed the formation of AuNPs in the region outside of the laser focal point. The proposed method for the formation of AuNPs enables spatially selective fabrication of structures with optical properties attributed to localized surface plasmon resonance. Typical biomolecules present in sweat were detected using hydrogels with the fabricated structures. Among the biomolecules, the peaks of the absorbance spectra of the AuNPs inside hydrogels exhibited a blue shift only for urea. This result indicates that urea can be detected using hydrogels with fabricated structures. The method presented in this study facilitates spatially selective fabrication of biosensing structures inside the bulk of hydrogels.",
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AU - Muranaka, Keiki

AU - Niidome, Takuro

AU - Torres-Mapa, Maria Leilani

AU - Heisterkamp, Alexander

AU - Terakawa, Mitsuhiro

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KW - Femtosecond laser

KW - Hydrogel

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KW - Photoreduction

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