[2] [2] Thomas DM, & Zalcberg J R. 5-fluorouracil: A pharmacological paradigm in the use of cytotoxics. Clin Exp Pharmacol P 1998 25, 887-895.

[4] [4] Madzharova F, Heiner Z, Guhlke M, Kneipp J. Surface-Enhanced Hyper-Raman Spectra of Adenine, Guanine, Cytosine, Thymine, and Uracil. The journal of physical chemistry. C, Nanomaterials and interfaces 2016 120, 15415-15423.

[5] [5] Fleischmann M, Hendra P J, & Mcquillan A J. Raman-Spectra of Pyridine Adsorbed at a Silver Electrode. Chem Phys Lett 1974 26, 163-166.

[6] [6] Ai YJ, et al. Rapid qualitative and quantitative determination of food colorants by both Raman spectra and Surface-enhanced Raman Scattering (SERS). Food Chem 2018 241, 427-433.

[7] [7] Cheng Z. et al. Simultaneous Detection of Dual Prostate Specific Antigens Using Surface-Enhanced Raman Scattering-Based Immunoassay for Accurate Diagnosis of Prostate Cancer. Acs Nano 2017 11, 4926-4933.

[8] [8] Liou P, Nayigiziki FX, Kong FB, Mustapha A, & Lin M S. Cellulose nanofibers coated with silver nanoparticles as a SERS platform for detection of pesticides in apples. Carbohyd Polym 2017 157, 643-650.

[9] [9] Premasiri W R. et al. The biochemical origins of the surface-enhanced Raman spectra of bacteria: a metabolomics profiling by SERS. Anal Bioanal Chem 2016 408, 4631-4647.

[10] [10] Tan MJ, et al. Metal carbonyl-gold nanoparticle conjugates for highly sensitive SERS detection of organophosphorus pesticides. Biosensors & bioelectronics 2017 96, 167-172.

[11] [11] Zhu CH, et al.A Hierarchically Ordered Array of Silver-Nanorod Bundles for Surface-Enhanced Raman Scattering Detection of Phenolic Pollutants. Adv Mater 2016 28, 4871-4876.

[12] [12] Xing LX, Xiahou YJ, Zhang PN, Du W, & Xia H.B. Size Control Synthesis of Monodisperse, Quasi-Spherical Silver Nanoparticles To Realize Surface-Enhanced Raman Scattering Uniformity and Reproducibility. Acs Appl Mater Inter 2019 11, 17637-17646.

[13] [13] Yan XY, et al. Sandwich-like Ag@Cu@CW SERS substrate with tunable nanogaps and component based on the Plasmonic nanonodule structures for sensitive detection crystal violet and 4-aminothiophenol. Appl Surf Sci 2019 479, 879-886.

[14] [14] Wu L, Wang Z, Zong S, & Cui Y. Rapid and reproducible analysis of thiocyanate in real human serum and saliva using a droplet SERS-microfluidic chip. Biosensors & bioelectronics 2014 62, 13-8.