Estimating the concentration of gold nanoparticles incorporated on natural rubber membranes using multi-level starlet optimal segmentation

Autor(es)

de Siqueira, A. F. ^[1] ; Cabrera, F. C. ^[1] ; Pagamisse, A. ^[2] ; Job, A. E. ^[1]

Afiliação do(s) autor(es)

^[1] UNESP Univ Estadual Paulista, Dept Fis Quim & Biol, Presidente Prudente, SP - Brazil

^[2] UNESP Univ Estadual Paulista, Dept Matemat & Comp, Presidente Prudente, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF NANOPARTICLE RESEARCH; v. 16, n. 12 DEC 2014.
• Citações Web of Science: 1

Resumo

This study consolidates multi-level starlet segmentation (MLSS) and multi-level starlet optimal segmentation (MLSOS) techniques for photomicrograph segmentation, based on starlet wavelet detail levels to separate areas of interest in an input image. Several segmentation levels can be obtained using MLSS; after that, Matthews correlation coefficient is used to choose an optimal segmentation level, giving rise to MLSOS. In this paper, MLSOS is employed to estimate the concentration of gold nanoparticles with diameter around 47 nm, reduced on natural rubber membranes. These samples were used for the construction of SERS/SERRS substrates and in the study of the influence of natural rubber membranes with incorporated gold nanoparticles on the physiology of Leishmania braziliensis. Precision, recall, and accuracy are used to evaluate the segmentation performance, and MLSOS presents an accuracy greater than 88 % for this application. (AU)

• Processo FAPESP: 11/09438-3 - Processamento de fotomicrografias por meio da transformada wavelet starlet
• Beneficiário: Alexandre Fioravante de Siqueira
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 10/20496-2 - Caracterização de Epídotos via MEV, Espectroscopia Micro-Raman, Calorimetria Diferencial de Varredura e Microscopia Ótica e estudos de annealing e entropia através do Método dos Traços de Fissão
• Beneficiário: Wagner Massayuki Nakasuga
• Modalidade de apoio: Bolsas no Brasil - Doutorado