TY - JOUR
T1 - Development of Surface-enhanced Raman Scattering Substrate Using Melt-blown Nonwoven Fabric Subjected to Electroless Ag Plating
T2 - A Basic Study
AU - Tahara, Yusuke
AU - Yamamoto, Junya
AU - Nishiyama, Takashi
AU - Tomisawa, Ren
AU - Takigawa, Ryo
N1 - Publisher Copyright:
© MYU K.K.
PY - 2024
Y1 - 2024
N2 - The fabrication of the nanostructures required for surface-enhanced Raman scattering (SERS), which is increasingly used for chemical analysis, is complex and expensive. We demonstrated the feasibility of using low-cost, flexible SERS substrates produced using melt-blown nonwoven polypropylene (PP) fabrics as the base material. First, nonwoven PP fabrics with fiber diameters of 5.7 ± 3.3 µm were prepared using the melt-blowing method. These fabrics were then hydrophilized using plasma treatment and densely modified with Ag nanoparticles with a diameter of approximately 90 nm by electroless plating involving a sensitization-activation process and the reduction of AgNO3. The SERS response of the Raman probe, 4-aminothiophenol (4-ATP), indicated that the resulting PP SERS substrates were more sensitive than a commercial low-cost SERS substrate made of laser nanopatterned soda lime glass coated with Ag in the concentration range of 10-4–10-6 M. The responses for 10-3 M 4-ATP after 3, 7, and 14 d were 103.0, 104.6, and 86.7%, respectively, based on the Raman peak at 1140 cm-1 measured on the day after fabrication (1 d). Thus, the fabricated PP SERS substrates are suitable for use as low-cost and flexible SERS substrates for chemical analysis.
AB - The fabrication of the nanostructures required for surface-enhanced Raman scattering (SERS), which is increasingly used for chemical analysis, is complex and expensive. We demonstrated the feasibility of using low-cost, flexible SERS substrates produced using melt-blown nonwoven polypropylene (PP) fabrics as the base material. First, nonwoven PP fabrics with fiber diameters of 5.7 ± 3.3 µm were prepared using the melt-blowing method. These fabrics were then hydrophilized using plasma treatment and densely modified with Ag nanoparticles with a diameter of approximately 90 nm by electroless plating involving a sensitization-activation process and the reduction of AgNO3. The SERS response of the Raman probe, 4-aminothiophenol (4-ATP), indicated that the resulting PP SERS substrates were more sensitive than a commercial low-cost SERS substrate made of laser nanopatterned soda lime glass coated with Ag in the concentration range of 10-4–10-6 M. The responses for 10-3 M 4-ATP after 3, 7, and 14 d were 103.0, 104.6, and 86.7%, respectively, based on the Raman peak at 1140 cm-1 measured on the day after fabrication (1 d). Thus, the fabricated PP SERS substrates are suitable for use as low-cost and flexible SERS substrates for chemical analysis.
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U2 - 10.18494/SAM4820
DO - 10.18494/SAM4820
M3 - Article
AN - SCOPUS:85191568625
SN - 0914-4935
VL - 36
SP - 1305
EP - 1318
JO - Sensors and Materials
JF - Sensors and Materials
IS - 4
ER -