US 11,733,167 B1
Nanoparticle-based Raman scattering substrate
Mohammad Kamal Hossain, Dhahran (SA); Qasem Ahmed Drmosh, Dhahran (SA); and Amar Kamal Mohamedkhair, Dhahran (SA)
Assigned to KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA)
Filed by KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA)
Filed on Sep. 29, 2022, as Appl. No. 17/936,412.
Application 17/936,412 is a continuation of application No. 17/745,279, filed on May 16, 2022, granted, now 11,480,524.
This patent is subject to a terminal disclaimer.
Int. Cl. G01N 21/65 (2006.01); C03C 17/36 (2006.01); C04B 35/453 (2006.01); C04B 35/622 (2006.01); C04B 35/64 (2006.01)
CPC G01N 21/658 (2013.01) [C03C 17/3605 (2013.01); C03C 17/3644 (2013.01); C03C 17/3649 (2013.01); C04B 35/453 (2013.01); C04B 35/62222 (2013.01); C04B 35/64 (2013.01); C03C 2217/216 (2013.01); C03C 2217/255 (2013.01); C03C 2217/256 (2013.01); C03C 2217/42 (2013.01); C03C 2217/425 (2013.01); C03C 2218/154 (2013.01); C04B 2235/3284 (2013.01); C04B 2235/408 (2013.01); C04B 2235/5454 (2013.01); C04B 2235/661 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A surface-enhanced Raman scattering (SERS) substrate, comprising:
a solid support;
first noble metal nanoparticles disposed on the solid support;
a continuous porous oxide layer consisting of ZnO nanoparticles disposed on the first noble metal nanoparticles; and
second noble metal nanoparticles disposed on the continuous porous oxide layer, wherein
the continuous porous oxide layer prevents contact between the first noble nanoparticles and the second noble nanoparticles and has a mean pore size of 2 to 30 nm.