Improving 5-halouracils SERS detection driven by Watson & Crick pairing recognition. A spectroscopic & DFT study - Neto, Antonio M; Valeriano, Maycom C; Temperini, Márcia Laudelina Arruda; Homem-de-Mello, Paula; López, Mónica B. Mamián (Spectrochimica Acta Part A, 2025)