M
Marisa Masumi Beppu
Researcher at State University of Campinas
Publications - 148
Citations - 5960
Marisa Masumi Beppu is an academic researcher from State University of Campinas. The author has contributed to research in topics: Adsorption & Chitosan. The author has an hindex of 32, co-authored 134 publications receiving 4965 citations. Previous affiliations of Marisa Masumi Beppu include Universidade Federal do Rio Grande do Sul.
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Natural-based plasticizers and biopolymer films: A review
TL;DR: The use of natural and/or biodegradable plasticizers, with low toxicity and good compatibility with several plastics, resins, rubber and elastomers in substitution of conventional plasticizers attracted the market along with the increasing worldwide trend towards use of biopolymers.
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Crosslinking of chitosan membranes using glutaraldehyde: Effect on ion permeability and water absorption
TL;DR: In this article, the authors used Potentiometric titration, infrared spectroscopy (FTIR-ATR) and thermal gravimetric analyses (TGA) to identify differences between pristine and crosslinked chitosan membranes.
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Copper, mercury and chromium adsorption on natural and crosslinked chitosan films: An XPS investigation of mechanism
Rodrigo Silveira Vieira,Mona Lisa Moura de Oliveira,Eric Guibal,Enrique Rodríguez-Castellón,Marisa Masumi Beppu +4 more
TL;DR: In this article, copper, chromium and mercury ions were adsorbed on natural and crosslinked (glutaraldehyde and epichlorohydrin) chitosan matrices, which present diverse functional groups and may induce different adsorption mechanisms.
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Dynamic and static adsorption and desorption of Hg(II) ions on chitosan membranes and spheres.
TL;DR: A process combining dynamic adsorption and static desorption can be used to concentrate the Hg(II) ions by a factor of nearly seven (7x), when compared to the initially treated volume.
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Interaction of natural and crosslinked chitosan membranes with Hg(II) ions
TL;DR: In this article, the adsorption and desorption of Hg(II) ions on chitosan membranes was performed. But the results showed that the amount of adsorbed Hg-II ions increased when the adsorbent was crosslinked, mainly with glutaraldehyde.