US 12,247,924 B2
Platform for stand-off and real-time SERS sensing of airborne analytes
Xing Yi Ling, Singapore (SG); and Gia Chuong Phan Quang, Singapore (SG)
Assigned to Nanyang Technological University, Singapore (SG)
Appl. No. 17/625,841
Filed by Nanyang Technological University, Singapore (SG)
PCT Filed Jul. 30, 2020, PCT No. PCT/SG2020/050438
§ 371(c)(1), (2) Date Jan. 10, 2022,
PCT Pub. No. WO2021/021024, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 10201907052Q (SG), filed on Jul. 31, 2019.
Prior Publication US 2022/0258232 A1, Aug. 18, 2022
Int. Cl. G01N 21/65 (2006.01); B22F 1/054 (2022.01); B22F 7/04 (2006.01); B82Y 30/00 (2011.01)
CPC G01N 21/658 (2013.01) [B22F 1/0553 (2022.01); B22F 7/04 (2013.01); B82Y 30/00 (2013.01); B22F 2999/00 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A composite material suitable for use in surface-(Currently Amended) enhanced Raman scattering, the material comprising:
a substrate layer having a surface;
a plurality of layers of core-shell particles formed on the surface of the substrate layer, wherein:
the core-shell particles comprise:
a core formed from a single plasmonic metal nanoparticle; and
a single shell layer formed from a metal-organic framework; and
the plurality of layers of core-shell particles provides at least 10 layers of core-shell particles and a thickness of at least 1.3 μm on the surface of the substrate layer.