Diagnosis of breast cancer by analysis of sialic acid concentrations in human saliva by surface-enhanced Raman spectroscopy of silver nanoparticles

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1 Nano Res. Electronic Supplementary Material Diagnosis of breast cancer by analysis of sialic acid s in human saliva by surface-enhanced Raman spectroscopy of silver nanoparticles Aida Hernández-Arteaga1, José de Jesús Zermeño Nava2, Eleazar Samuel Kolosovas-Machuca1, J. Jesús Velázquez-Salazar3, Ekaterina Vinogradova3, Miguel José-Yacamán1,3, and Hugo Ricardo Navarro-Contreras1 ( ) 1 Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luís Potosí, Álvaro Obregón 64, San Luis Potosí, S.L.P , México 2 División de Gineco-Obstetricia, Hospital Central Dr. Ignacio Morones Prieto, Ave. Venustiano Carranza 2395, Zona Universitaria, San Luis Potosí, S.L.P , México 3 Department of Physics and Astronomy, University of Texas at San Antonio, San Antonio, TX 78249, USA Supporting information to DOI /s First calibration sialic acid cit-agnps-1, saliva, one healthy and one diagnosed patient Figure S1 SEM images: Nanoparticles size distribution No. 1 (80 ± 30 nm). Address correspondence to hnavarro@uaslp.mx

2 Figure S2 Histograms: Nanoparticles size distribution No. 1 (80 ± 30 nm). Figure S3 SERS spectra; SA reagent, SA spectra in a healthy and diagnosed patient. B: colloidal1 of cit-agnps C: S.A. 1 mg dl 1 + AgNPs D: S.A. 5 mg dl 1 + AgNPs E: S.A. 10 mg dl 1 + AgNPs F: S.A. 15 mg dl 1 + AgNPs G: S.A. 20 mg dl 1 + AgNPs H: S.A. 50 mg dl 1 + AgNPs I: saliva of female breast cancer patient + AgNPs (arrow) J: saliva of healty adult female + AgNPs

3 Figure S4 Calibration curves for NP population 1. Table S1 Results calibration No. 1 Calibration from nanoparticles size distribution No. 1 (80 ± 30 nm) ± 1.0 (mg dl 1 ) HAF1 3.4 FBCP Second calibration cit-agnps-2, sialic acid cit-agnps-1, saliva, one healthy and one diagnosed Figure S5 SEM images: Nanoparticles size distribution No. 2 (65 ± 20 nm). Nano Research

4 Figure S6 Histograms: Nanoparticles size distribution No. 2 (65 ± 20 nm). Figure S7 SERS spectra; SA reagent, SA spectra in a healthy and diagnosed patient. Calibration No. 2. B: colloidal2 of cit-agnps C: S.A. 1 mg dl 1 + AgNPs D: S.A. 5 mg dl 1 + AgNPs E: S.A. 10 mg dl 1 + AgNPs F: S.A. 15 mg dl 1 + AgNPs G: S.A. 20 mg dl 1 + AgNPs H: S.A. 50 mg dl 1 + AgNPs I: saliva of female breast cancer patient + AgNPs (arrow) J: saliva of healty adult female + AgNPs

5 Figure S8 Calibration curves for NP population 2. Table S2 Results calibration No. 2 Calibration from nanoparticles size distribution No. 2 (65 ± 20 nm) ± 1.0 (mg dl 1 ) HAF 2.9 FBCP rd. calibration cit-agnps-3 one healthy and one diagnosed cancer patient Figure S9 SEM images: Nanoparticles size distribution No. 1 (110 ± 30 nm). Nano Research

6 Figure S10 Histograms: Nanoparticles size distribution No. 1 (110 ± 30 nm). Figure S11 SERS spectra; SA reagent, SA spectra in a healthy and diagnosed patient. Calibration No. 3. B: colloidal3 of Cit-AgNPs C: S.A. 1 mg dl 1 + AgNPs D: S.A. 5 mg dl 1 + AgNPs E: S.A. 10 mg dl 1 + AgNPs F: S.A. 15 mg dl 1 + AgNPs G: S.A. 20 mg dl 1 + AgNPs H: S.A. 50 mg dl 1 + AgNPs I: saliva of female breast cancer patient + AgNPs (arrow) J: saliva of healty adult female + AgNPs

7 Nano Res. Figure S12 Calibration curves for NP population 3. Table S3 Results calibration No. 3 Calibration from nanoparticles size distribution No. 3 (110 ± 30 nm) ± 1.0 (mg dl 1) HAF1 3.6 FBCP Fourth calibration cit-agnps-4. Figure S13 SEM images: Highly asymetric nanoparticles size distribution No. 4. Distributionsize from 20 to 150. (Mode value 50 nm). Nano Research

8 Figure S14 Histograms: Highly asymetric nanoparticles size distribution No. 4. Distributionsize from 20 to 150. (Mode value 50 nm). Figure S15 SERS spectra; SA reagent, SA spectra in a healthy and diagnosed patient. Calibration No. 4. B: colloidal 4 of cit-agnps C: S.A. 1 mg dl 1 + AgNPs D: S.A. 5 mg dl 1 + AgNPs E: S.A. 10 mg dl 1 + AgNPs F: S.A. 15 mg dl 1 + AgNPs G: S.A. 20 mg dl 1 + AgNPs H: S.A. 50 mg dl 1 + AgNPs I: saliva of female breast cancer patient + AgNPs (arrow) J: saliva of healty adult female + AgNPs

9 Figure S16 Calibration curves for NP population 4. Table S4 Results calibration No. 4 Calibration from nanoparticles size distribution No to 150 nm, population mode: 50 nm ± 1.0 (mg dl 1 ) HAF1 3.1 FBCP Table S5 Summary of results of sialic acid calibration using silver nanoparticles of different sizes and population distributions H: healthy FBC: breast cancer diagnosed patient our data in the manuscript 5 to 50 nm population mode 10 nm population 1 ± 1 (mg dl 1 ) population 2 ± 1 (mg dl 1 ) population 3 ± 1 (mg dl 1 ) population 4 ± 1 (mg dl 1 ) (80 ± 30 nm) (65 ± 20 nm) (110 ± 30 nm) 20 to 150 nm, Population mode: 50 nm S.A. mean ± stand. dev-(new data) HAF ± 0.27 FBCP ± Nano Research