Sculptured thin films: Overcoming the limitations of surface-enhanced Raman scattering substrates

Unveiling practical considerations for reliable and standardized SERS measurements: lessons from a comprehensive review of oblique angle deposition-fabricated silver nanorod array substrates

“…Here, we would like to address the aforementioned issues using silver nanorod arrays (AgNRs) as SERS substrates fabricated by oblique angle deposition (OAD). [11][12][13] Since 2005, this substrate has been utilized in numerous sensor applications, [12][13][14] including biomedical applications such as detecting bacteria, viruses, biomarkers, and more. It has also found application in fields like food safety, where it can sense illegal food additives, bacteria, carcinogenic substances, and environmental monitoring of antibiotic pollution, heavy metal ion pollution, and so on.…”

GLAD Based Advanced Nanostructures for Diversified Biosensing Applications: Recent Progress

“…Recently, Kumar et al reviewed the fabrication and recent biochemical applications of various GLAD-fabricated substrates for SERS. They discussed, in depth, the advantages of these substrates and how these overcome the various limitations of conventional substrates [ 67 ], ( Figure 2 a–e). These GLAD-fabricated nanostructures have recently been employed in various biosensing detection settings.…”

“…Therefore, GLAD is a versatile nanofabrication technique for the design of nanostructured thin films for SERS sensing [ 67 ]. However, there are still a number of challenges that must be overcome before SERS can be used as a common analytical technique, like HPLC, for complex food matrices and pathogens in the real world.…”

“… Different GLAD-structured thin films. ( a ) Slanted-post films; ( b ) zig-zag (chevron) films with 4 arms; ( c ) AgNR/SiO 2 SCL/SiO 2 /PCL/Ag multilayer substrates; ( d ) helical film; ( e ) vertical post structure (reproduced with permission from [ 67 ]); ( f ) 45° tilted top view of Au mushrooms (reproduced with permission from [ 68 ]). …”

Plasmonic Sensors: A New Frontier in Nanotechnology

“…GLAD is a physical vapor deposition technique used to fabricate complex nanostructures and thin films with controlled porosity and morphology [ 29 , 30 ]. In this technique, the material is deposited obliquely onto a substrate at a low angle of incidence, typically between 70° and 87°, resulting in highly anisotropic structures with directional growth [ 31 ].…”