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Cellulose nanoparticles as rheology modifiers for complex fluids


Cellulose particles with widths in the nanometer range are biomaterials with unique potentially useful features. Nowadays, a very great effort is being made to find new isolation and application methodologies of such nanomaterials derived from wood, cotton and agriculture wastes. Depending on the extraction process, micro and nanofibrillated cellulose (MFC, CNF) or nanocrystalline cellulose (CNC) can be obtained. These nanoparticles form gels at very low concentrations in water, having potential application as thickening agent for formulated chemical products. However, studies concerning the thickening effect of nanocellulose in complex fluids containing polymers, surfactants and inorganic particles at high ionic strength are still very scarce in the literature.The aim of this project is to establish a new research line at the Brazilian Nanotechnology Laboratory, intended to study the production and the application of nanocelluloses as rheology modifier for complex fluids. It is proposed to use sugarcane bagasse, the most abundant agro-industrial waste in Brazil, as feedstock in the production of these nanoparticles. All the prepared materials will be characterized by different techniques of transmission electron microscopy (TEM) and of atomic force microscopy (AFM), in addition to chemical characterization by infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). Rheological behavior of nanocellulose dispersions will be evaluated in different formulations. (AU)

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Scientific publications (12)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SOUZA, SIVONEY FERREIRA; MARIANO, MARCOS; DE FARIAS, MARCELO A.; BERNARDES, JULIANA SILVA. Effect of depletion forces on the morphological structure of carboxymethyl cellulose and micro/nano cellulose fiber suspensions. Journal of Colloid and Interface Science, v. 538, p. 228-236, . (17/50133-8, 16/04514-7)
MARIANO, MARCOS; HANTAO, LEANDRO WANG; BERNARDES, JULIANA DA SILVA; STRAUSS, MATHIAS. Microstructural characterization of nanocellulose foams prepared in the presence of cationic surfactants. Carbohydrate Polymers, v. 195, p. 153-162, . (15/05059-9, 16/04514-7)
MARIANO, MARCOS; BERNARDES, JULIANA DA SILVA; STRAUSS, MATHIAS. Mold heat conductance as drive force for tuning freeze-casted nanocellulose foams microarchitecture. Materials Letters, v. 225, p. 167-170, . (16/04514-7)
SILVA, CAROLINE E. P.; BERNARDES, JULIANA S.; LOH, WATSON. Stabilizing both oil droplets and titanium dioxide nanoparticles in aqueous dispersion with nanofibrillated cellulose. Carbohydrate Polymers, v. 302, p. 11-pg., . (16/04514-7, 15/25406-5)
FERREIA, F. V.; TRINDADE, G. N.; LONA, L. M. F.; BERNARDES, J. S.; GOUVEIA, R. F.. LDPE-based composites reinforced with surface modified cellulose fibres: 3D morphological and morphometrical analyses to understand the improved mechanical performance. EUROPEAN POLYMER JOURNAL, v. 117, p. 105-113, . (16/09588-9, 16/04514-7)
FINGOLO, ANA C.; DE MORAIS, VITORIA B.; COSTA, V, SAIONARA; CORREA, CATIA C.; LODI, BEATRIZ; SANTHIAGO, MURILO; BERNARDES, JULIANA S.; BUFON, CARLOS C. B.. Enhanced Hydrophobicity in Nanocellulose-Based Materials: Toward Green Wearable Devices. ACS APPLIED BIO MATERIALS, v. 4, n. 9, p. 6682-6689, . (14/25979-2, 16/04514-7, 14/50906-9)
NASCIMENTO, DIEGO M.; COLOMBARI, FELIPPE M.; FOCASSIO, BRUNO; SCHLEDER, GABRIEL R.; COSTA, CARLOS A. R.; BIFFE, CLEYTON A.; LING, LIU Y.; GOUVEIA, RUBIA F.; STRAUSS, MATHIAS; ROCHA, GEORGE J. M.; et al. How lignin sticks to cellulose-insights from atomic force microscopy enhanced by machine-learning analysis and molecular dynamics simulations. NANOSCALE, v. 14, n. 47, p. 11-pg., . (14/50884-5, 19/04527-0, 20/07794-6, 17/02317-2, 16/04514-7)
SILVESTRE, G. H.; DE LIMA, F. CRASTO; BERNARDES, J. S.; FAZZIO, A.; MIWA, R. H.. Nanoscale structural and electronic properties of cellulose/graphene interfaces. Physical Chemistry Chemical Physics, v. 25, n. 2, p. 8-pg., . (17/02317-2, 16/04514-7)
PINTO, LIDIANE O.; BERNARDES, JULIANA S.; REZENDE, CAMILA A.. Low-energy preparation of cellulose nanofibers from sugarcane bagasse by modulating the surface charge density. Carbohydrate Polymers, v. 218, p. 145-153, . (16/13602-7, 16/04514-7)
SILVA, CAROLINE E. P.; TAM, KAM C.; BERNARDES, JULIANA S.; LOH, WATSON. Double stabilization mechanism of O/W Pickering emulsions using cationic nanofibrillated cellulose. Journal of Colloid and Interface Science, v. 574, p. 207-216, . (15/25406-5, 17/50133-8, 16/04514-7)
MARIANO, MARCOS; SOUZA, SIVONEY F.; BORGES, ANTONIO C.; DO NASCIMENTO, DIEGO M.; BERNARDES, JULIANA S.. Tailoring strength of nanocellulose foams by electrostatic complexation. Carbohydrate Polymers, v. 256, . (16/04514-7)
SILVESTRE, GUSTAVO H.; PINTO, LIDIANE O.; BERNARDES, JULIANA S.; MIWA, ROBERTO H.; FAZZIO, ADALBERTO. Disassembly of TEMPO-Oxidized Cellulose Fibers: Intersheet and Interchain Interactions in the Isolation of Nanofibers and Unitary Chains. Journal of Physical Chemistry B, v. 125, n. 14, p. 8-pg., . (17/02317-2, 16/04514-7)

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Filed patent(s) as a result of this research project

NANOFIBRILLATED CELLULOSE EMULSION, EMULSIFICATION PROCESS, USE OF CATIONIC NANOFIBRILLATED CELLULOSE AND USE OF EMULSION PCT/BR2020/050249 - ; Universidade estadual de Campinas - UNICAMP Centro Nacional de Pesquisa em Energia e Materiais . Watson Loh ; Juliana Bernandes ; Caroline Ezequiel de Paulo da Silva ; Michael Kam Chiu Tam - July 2020, 07