Flow-Based Approach for Scalable Fabrication of Ag Nanostructured Substrate as a Platform for Surface-Enhanced Raman Scattering

Shaping a Surface Microdroplet by Marangoni Forces along a Moving Contact Line of Four Immiscible Phases

“…In nanomaterial synthesis, maintaining stable microdroplets with precise compositions and sizes is crucial to perform precise and controlled multistep reactions, [ 1–4 ] and to obtain desired product properties. [ 5–8 ] For analytical chemistry and medical diagnostics, transferring microdroplets often enables the isolation and manipulation of small volumes of samples, leading to better sensitivity and accuracy in detecting specific compounds or analytes. [ 9–11 ] In other situations, it is desirable to mobilize microdroplets on surfaces or interfaces.…”

Focusing ion funnel-assisted ambient electrospray enables high-density and uniform deposition of non-spherical gold nanoparticles for highly sensitive surface-enhanced Raman scattering

“…26,27 Recently Kanike et al developed a droplet-based microfluidic approach to fabricate ordered silver nanostructures over a surface area >60 cm 2 . 28 They achieved a limit of detection with R6G of 10 −12 M. Whilst these approaches have shown promise, they are often associated with high cost and complexity. Furthermore, they may not be suitable for mass production, particularly when achieving a consistent SERS signal across a large area is necessary.…”