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Nanocomposite hybrids of cashew apple bagasse‐derived lignin with photoprotective properties for sunscreen applications.

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Title: Nanocomposite hybrids of cashew apple bagasse‐derived lignin with photoprotective properties for sunscreen applications.
Authors: Rodrigues, Tigressa Helena Soares1 (AUTHOR), Matias, Gabriel Arcanjo Bezerra2 (AUTHOR), Frota, Vanessa Moreira2 (AUTHOR), Mattos, Adriano L. A.3 (AUTHOR), Rocha, Maria Valderez Ponte2 (AUTHOR) valderez.rocha@ufc.br
Source: Biofuels, Bioproducts & Biorefining. Jul2025, Vol. 19 Issue 4, p1100-1109. 10p.
Subject Terms: *Titanium oxides, *Biodegradable materials, *Zeta potential, *Fourier transforms, *Thixotropy, *Lignins
Abstract: Prolonged exposure to ultraviolet (UV) radiation can cause significant damage to the skin and immune system. There has consequently been an increasing emphasis on the development of biodegradable and sustainable materials that offer UV protection, reflecting increased awareness of health and disease prevention. Due to its high concentration of phenolic groups, lignin has emerged as a promising candidate for natural UV protective materials. This study therefore aimed to produce nanocomposites of lignin from cashew apple bagasse, due to its wide availability and high lignin content, combined with zinc or titanium oxides for sunscreen application. Fourier transform infrared (FTIR) spectroscopy and X‐ray analysis confirm interactions between lignin and zinc/titanium oxides. The resulting nanocomposites are stable, as indicated by their zeta potential (−32 mV to −48 mV). Lignin nanocomposites (LigZnO and LigTiO2) exhibited similar antioxidant activity, though lower than that of lignin alone. Although lignin nanocomposites exhibited low sun protection factor (SPF) values in an emulsion base, they enhanced SPF in a commercial sunscreen. LigZnO (15.9) and LigTiO2 (15.7) boosted the effectiveness of commercial UV absorbers (Parsol MCX and avobenzone), outperforming formulations with lignin alone or commercial ZnO and TiO2. The synergistic interaction between LigTiO2, LigZnO, and organic UV blockers reinforced thixotropy, making lignin nanocomposites a promising additive for sunscreen formulations. Their low cost and sustainable synthesis add value to nanomaterials while mitigating agro‐waste disposal. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 186727276
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Nanocomposite hybrids of cashew apple bagasse‐derived lignin with photoprotective properties for sunscreen applications.
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  Data: <searchLink fieldCode="AR" term="%22Rodrigues%2C+Tigressa+Helena+Soares%22">Rodrigues, Tigressa Helena Soares</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Matias%2C+Gabriel+Arcanjo+Bezerra%22">Matias, Gabriel Arcanjo Bezerra</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Frota%2C+Vanessa+Moreira%22">Frota, Vanessa Moreira</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mattos%2C+Adriano+L%2E+A%2E%22">Mattos, Adriano L. A.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rocha%2C+Maria+Valderez+Ponte%22">Rocha, Maria Valderez Ponte</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> valderez.rocha@ufc.br</i>
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  Data: <searchLink fieldCode="JN" term="%22Biofuels%2C+Bioproducts+%26+Biorefining%22">Biofuels, Bioproducts & Biorefining</searchLink>. Jul2025, Vol. 19 Issue 4, p1100-1109. 10p.
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  Data: *<searchLink fieldCode="DE" term="%22Titanium+oxides%22">Titanium oxides</searchLink><br />*<searchLink fieldCode="DE" term="%22Biodegradable+materials%22">Biodegradable materials</searchLink><br />*<searchLink fieldCode="DE" term="%22Zeta+potential%22">Zeta potential</searchLink><br />*<searchLink fieldCode="DE" term="%22Fourier+transforms%22">Fourier transforms</searchLink><br />*<searchLink fieldCode="DE" term="%22Thixotropy%22">Thixotropy</searchLink><br />*<searchLink fieldCode="DE" term="%22Lignins%22">Lignins</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Prolonged exposure to ultraviolet (UV) radiation can cause significant damage to the skin and immune system. There has consequently been an increasing emphasis on the development of biodegradable and sustainable materials that offer UV protection, reflecting increased awareness of health and disease prevention. Due to its high concentration of phenolic groups, lignin has emerged as a promising candidate for natural UV protective materials. This study therefore aimed to produce nanocomposites of lignin from cashew apple bagasse, due to its wide availability and high lignin content, combined with zinc or titanium oxides for sunscreen application. Fourier transform infrared (FTIR) spectroscopy and X‐ray analysis confirm interactions between lignin and zinc/titanium oxides. The resulting nanocomposites are stable, as indicated by their zeta potential (−32 mV to −48 mV). Lignin nanocomposites (LigZnO and LigTiO2) exhibited similar antioxidant activity, though lower than that of lignin alone. Although lignin nanocomposites exhibited low sun protection factor (SPF) values in an emulsion base, they enhanced SPF in a commercial sunscreen. LigZnO (15.9) and LigTiO2 (15.7) boosted the effectiveness of commercial UV absorbers (Parsol MCX and avobenzone), outperforming formulations with lignin alone or commercial ZnO and TiO2. The synergistic interaction between LigTiO2, LigZnO, and organic UV blockers reinforced thixotropy, making lignin nanocomposites a promising additive for sunscreen formulations. Their low cost and sustainable synthesis add value to nanomaterials while mitigating agro‐waste disposal. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1002/bbb.2775
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 10
        StartPage: 1100
    Subjects:
      – SubjectFull: Titanium oxides
        Type: general
      – SubjectFull: Biodegradable materials
        Type: general
      – SubjectFull: Zeta potential
        Type: general
      – SubjectFull: Fourier transforms
        Type: general
      – SubjectFull: Thixotropy
        Type: general
      – SubjectFull: Lignins
        Type: general
    Titles:
      – TitleFull: Nanocomposite hybrids of cashew apple bagasse‐derived lignin with photoprotective properties for sunscreen applications.
        Type: main
  BibRelationships:
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      – PersonEntity:
          Name:
            NameFull: Rodrigues, Tigressa Helena Soares
      – PersonEntity:
          Name:
            NameFull: Matias, Gabriel Arcanjo Bezerra
      – PersonEntity:
          Name:
            NameFull: Frota, Vanessa Moreira
      – PersonEntity:
          Name:
            NameFull: Mattos, Adriano L. A.
      – PersonEntity:
          Name:
            NameFull: Rocha, Maria Valderez Ponte
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          Dates:
            – D: 01
              M: 07
              Text: Jul2025
              Type: published
              Y: 2025
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              Value: 1932104X
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              Value: 19
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              Value: 4
          Titles:
            – TitleFull: Biofuels, Bioproducts & Biorefining
              Type: main
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