Lignin nanoparticles modified with tall oil fatty acid for cellulose functionalization

Harri Setälä (Corresponding Author), Hanna-Leena Alakomi, Arja Paananen, Geza Szilvay, Miriam Kellock, Miikka Lievonen, Ville Liljeström, Eva-Lena Hult, Kalle Lintinen, Monika Österberg, Mauri A. Kostiainen

Research output: Contribution to journalArticleScientificpeer-review

Abstract

In this study, tall oil fatty acid ester of softwood kraft lignin (TOFA-L) was used to prepare TOFA lignin nanoparticles (TLNP) in water. The average diameters for two prepared TLNPs in 0.1 mg/ml concentration were 140 nm and 160 nm. TLNPs were attached covalently onto modified and unmodified cellulose fibres to form an antimicrobial composite material. The modified cellulose fibres contained reactive allylic double bonds with a degree of substitution of 0.05. The antimicrobial properties of both TLNPs and TLNP coated fibres (TLNP-C) were studied against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa using silver nanospheres (average size 10 nm) and Lignoboost lignin particles with 300 and 400 nm sizes as references. Antimicrobial activity of the samples was stronger against Gram-positive S. aureus cells than against Gram-negative target microbes E. coli and P. aeruginosa.
Original languageEnglish
Number of pages12
JournalCellulose
Early online date2019
DOIs
Publication statusE-pub ahead of print - 2019
MoE publication typeA1 Journal article-refereed

Fingerprint

Tall oil
Lignin
Fatty acids
Cellulose
Fatty Acids
Nanoparticles
Escherichia coli
Fibers
Softwoods
Nanospheres
Silver
Esters
Substitution reactions
Water
Composite materials
tall oil
5-(tetradecyloxy)-2-furancarboxylic acid

Keywords

  • lignin
  • nanoparticles
  • cellulose
  • fatty acid
  • allylation

Cite this

Setälä, Harri ; Alakomi, Hanna-Leena ; Paananen, Arja ; Szilvay, Geza ; Kellock, Miriam ; Lievonen, Miikka ; Liljeström, Ville ; Hult, Eva-Lena ; Lintinen, Kalle ; Österberg, Monika ; Kostiainen, Mauri A. / Lignin nanoparticles modified with tall oil fatty acid for cellulose functionalization. In: Cellulose. 2019.
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Lignin nanoparticles modified with tall oil fatty acid for cellulose functionalization. / Setälä, Harri (Corresponding Author); Alakomi, Hanna-Leena; Paananen, Arja; Szilvay, Geza; Kellock, Miriam; Lievonen, Miikka; Liljeström, Ville; Hult, Eva-Lena; Lintinen, Kalle; Österberg, Monika; Kostiainen, Mauri A.

In: Cellulose, 2019.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Setälä, Harri

AU - Alakomi, Hanna-Leena

AU - Paananen, Arja

AU - Szilvay, Geza

AU - Kellock, Miriam

AU - Lievonen, Miikka

AU - Liljeström, Ville

AU - Hult, Eva-Lena

AU - Lintinen, Kalle

AU - Österberg, Monika

AU - Kostiainen, Mauri A.

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N2 - In this study, tall oil fatty acid ester of softwood kraft lignin (TOFA-L) was used to prepare TOFA lignin nanoparticles (TLNP) in water. The average diameters for two prepared TLNPs in 0.1 mg/ml concentration were 140 nm and 160 nm. TLNPs were attached covalently onto modified and unmodified cellulose fibres to form an antimicrobial composite material. The modified cellulose fibres contained reactive allylic double bonds with a degree of substitution of 0.05. The antimicrobial properties of both TLNPs and TLNP coated fibres (TLNP-C) were studied against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa using silver nanospheres (average size 10 nm) and Lignoboost lignin particles with 300 and 400 nm sizes as references. Antimicrobial activity of the samples was stronger against Gram-positive S. aureus cells than against Gram-negative target microbes E. coli and P. aeruginosa.

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