Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 751-760 |
| Seitenumfang | 10 |
| Fachzeitschrift | PLASMONICS |
| Jahrgang | 18 |
| Ausgabenummer | 2 |
| Frühes Online-Datum | 22 Feb. 2023 |
| Publikationsstatus | Veröffentlicht - 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
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in: PLASMONICS, Jahrgang 18, Nr. 2, 04.2023, S. 751-760.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Formation of Gold Nanoparticles inside a Hydrogel by Multiphoton Photoreduction for Plasmonic Sensing
AU - Muranaka, Keiki
AU - Niidome, Takuro
AU - Torres-Mapa, Maria Leilani
AU - Heisterkamp, Alexander
AU - Terakawa, Mitsuhiro
N1 - Funding Information: This work was partially supported by the JSPS KAKENHI Grant Number JP22H03958.
PY - 2023/4
Y1 - 2023/4
N2 - 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.
AB - 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.
KW - Femtosecond laser
KW - Hydrogel
KW - Metal nanoparticles
KW - Photoreduction
KW - Sensing
UR - http://www.scopus.com/inward/record.url?scp=85148518174&partnerID=8YFLogxK
U2 - 10.1007/s11468-023-01804-1
DO - 10.1007/s11468-023-01804-1
M3 - Article
AN - SCOPUS:85148518174
VL - 18
SP - 751
EP - 760
JO - PLASMONICS
JF - PLASMONICS
SN - 1557-1955
IS - 2
ER -