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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.)

Ultraviolet-protective thin film based on PVA-melanin/rod-coated silver nanowires and its application as a transparent capacitor

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Simao Albano, Luiz Gustavo [1] ; Paulin, Joao Vitor [1] ; Trino, Luciana Daniele [1] ; Fernandes, Silvia Leticia [2] ; de Oliveira Graeff, Carlos Frederico [1]
Total Authors: 5
[1] Sao Paulo State Univ UNESP, Sch Sci, Dept Phys, BR-17033360 Bauru - Brazil
[2] Fed Univ Sao Carlos UFSCar, Dept Chem, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Journal of Applied Polymer Science; v. 136, n. 30 AUG 10 2019.
Web of Science Citations: 1

Melanin is a biopigment in many organisms with interesting intrinsic properties suitable for emerging and sustainable technologies. In this work, we report the fabrication of transparent ultraviolet (UV)-protective thin films based on synthetic melanin in poly(vinyl alcohol) (PVA) matrixes. Melanin was synthesized through the auto-oxidation of l-3,4-dihydroxyphenylalanine (l-DOPA) under oxygen pressure, resulting in excellent solubility in water. A thin film with a composition of 3 wt % melanin (synthesized at 6 atm oxygen pressure) and silver nanowires (AgNWs) deposited on the surface has good transparency in visible light and 100% UV irradiation photoprotection. Encapsulated PVA-melanin/AgNW films dipped in water for 7 days retained 98% of their UV irradiation photoprotection. Moreover, using a transparent conductive oxide substrate, this UV-protective system can be simultaneously used as a transparent capacitor. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47805. (AU)

FAPESP's process: 14/01713-3 - Functionalization and adsorption studies on thin oxide films
Grantee:Luciana Daniele Trino Albano
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 13/09963-6 - Construction and characterization of vertical organic field effect transistors by using nanostructured materials as intermediate electrode
Grantee:Luíz Gustavo Simão Albano
Support type: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
Grantee:Elson Longo da Silva
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 15/23000-1 - Vertical organic field-effect transistor using dyes of natural origin as active layer
Grantee:João Vitor Paulin
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 17/11072-3 - CDMF - Center for the Development of Functional Materials
Grantee:Silvia Leticia Fernandes
Support type: Scholarships in Brazil - Post-Doctorate