Ultrasensitive detection of 2-Methylisoborneol and geosmin using a stainless steel wire-graphene-Au@Ag hollow nanoshell-modified SERS probe - Yuting Gong; Yuzhu Li; Min Chen; Anhui Lin; Yanfang Wu; Bingyuan Su; Xiaomei Chen (Analytica Chimica Acta, 2026)