TY - JOUR
T1 - Ag@Ni-NiO NW Core-Shell Nanowires
T2 - A Reliable Surface-Enhanced Raman Scattering (SERS) Substrate
AU - Hernandez Cedillo, Alondra
AU - Velazquez Salazar, J. Jesus
AU - Mendez Lozoya, Javier
AU - Agyei-Mensah, Joelin Ayimaa
AU - Guirado-López, R. A.
AU - Hernandez Cedillo, Coral
AU - Lehr, Alexander
AU - Jose Yacaman, Miguel
N1 - Publisher Copyright:
© 2025 American Chemical Society.
PY - 2025/2/27
Y1 - 2025/2/27
N2 - This research presents the development of a reliable Surface-Enhanced Raman Spectroscopy (SERS) substrate synthesized by a two-step process to enhance the detection capabilities for N-acetylneuraminic acid (Neu5Ac) and rhodamine (R6G). Initially, silver nanowires (Ag NWs) were synthesized through a two-step polyol method, followed by a coating with Ni-NiO (Ag@Ni-NiO NWs) to improve the stability and reproducibility of the SERS substrate. The developed substrate combines the plasmonics, chemical, and magnetoplasmonics effects to achieve signal amplification. The experimental findings demonstrated an impressive enhancement factor of 1011 for Neu5Ac, alongside a remarkable reproducibility over 120 days for R6G. Furthermore, the substrates achieved a limit of detection of 10-10 M for both analytes, indicating significant potential for application in sensitive biochemical detection. This study underlines the effectiveness of the proposed SERS substrate in providing reliable and high-performance detection and opens the door for SERS techniques for use in clinical testing.
AB - This research presents the development of a reliable Surface-Enhanced Raman Spectroscopy (SERS) substrate synthesized by a two-step process to enhance the detection capabilities for N-acetylneuraminic acid (Neu5Ac) and rhodamine (R6G). Initially, silver nanowires (Ag NWs) were synthesized through a two-step polyol method, followed by a coating with Ni-NiO (Ag@Ni-NiO NWs) to improve the stability and reproducibility of the SERS substrate. The developed substrate combines the plasmonics, chemical, and magnetoplasmonics effects to achieve signal amplification. The experimental findings demonstrated an impressive enhancement factor of 1011 for Neu5Ac, alongside a remarkable reproducibility over 120 days for R6G. Furthermore, the substrates achieved a limit of detection of 10-10 M for both analytes, indicating significant potential for application in sensitive biochemical detection. This study underlines the effectiveness of the proposed SERS substrate in providing reliable and high-performance detection and opens the door for SERS techniques for use in clinical testing.
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U2 - 10.1021/acs.jpcc.4c08450
DO - 10.1021/acs.jpcc.4c08450
M3 - Article
AN - SCOPUS:85217916501
SN - 1932-7447
VL - 129
SP - 4113
EP - 4125
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 8
ER -