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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Charge Matters: Electrostatic Complexation As a Green Approach to Assemble Advanced Functional Materials

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Otoni, Caio G. [1, 2] ; Queiros, Marcos V. A. [1] ; Sabadini, Julia B. [1] ; Rojas, Orlando J. [3, 2, 4, 5] ; Loh, Watson [1]
Total Authors: 5
[1] Univ Campinas UNICAMP, Campinas - Brazil
[2] Aalto Univ, Espoo - Finland
[3] Univ British Columbia, Dept Chem, Vancouver, BC - Canada
[4] Univ British Columbia, Dept Chem & Biol Engn, Vancouver, BC - Canada
[5] Univ British Columbia, Dept Wood Sci, Vancouver, BC - Canada
Total Affiliations: 5
Document type: Review article
Source: ACS OMEGA; v. 5, n. 3, p. 1296-1304, JAN 28 2020.
Web of Science Citations: 0

We report on electrostatically complexed materials bearing advanced functions that are not possible for other assemblies. The fundamentals of electrostatic association between oppositely charged polyelectrolytes and colloidal particles are introduced together with the conditions needed for complexation, including those related to ionic strength, pH, and hydration. Related considerations allow us to control the properties of the formed complexes and to develop features such as self-healing and underwater adhesion. In contrast to assemblies produced by typical hydrophobic and chemical interactions, electrostatic complexation leads to reversible systems. A state-of-the-art account of the field of electrostatically complexed materials is provided, including those formed from biomolecules and for salt-controlled rheology, underwater adhesiveness, and interfacial spinning. Finally, we present an outlook of electrostatic complexation from the colloidal chemistry perspective. (AU)

FAPESP's process: 17/07013-1 - Surface modifications and polyelectrolyte adsorption via layer-by-layer onto cellulose nanofibers for the production of antimicrobial aerogels
Grantee:Caio Gomide Otoni
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 15/25406-5 - Organizing matter: colloids formed by association of surfactants, polymers and nanoparticles
Grantee:Watson Loh
Support type: Research Projects - Thematic Grants
FAPESP's process: 18/09099-3 - Investigation about reversibility over electrostatic complexes formation in systems containing polymers and surfactants
Grantee:Marcos Vinícius Aquino Queirós
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 18/25041-5 - Evaluation of the equilibrium state and structure of coacervates formed by copolymers-in-block and oppositely charged polymers
Grantee:Julia Bonesso Sabadini
Support type: Scholarships in Brazil - Master
FAPESP's process: 19/00370-9 - Multifunctional materials from nanochitin
Grantee:Caio Gomide Otoni
Support type: Scholarships abroad - Research Internship - Post-doctor