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da Silva SHF, Gordobil O, Labidi J. Organic acids as a greener alternative for the precipitation of hardwood kraft lignins from the industrial black liquor. Int J Biol Macromol 2020; 142:583-591. [DOI: 10.1016/j.ijbiomac.2019.09.133] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 09/27/2019] [Accepted: 09/30/2019] [Indexed: 10/25/2022]
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Ghosh A, Kim K, Rajan K, Bowland CC, Gurram RN, Montgomery RW, Manesh A, Labbé N, Naskar AK. Butanol-Based Organosolv Lignin and Reactive Modification of Poly(ethylene-glycidyl methacrylate). Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b04071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Arun Ghosh
- Center for Renewable Carbon, University of Tennessee Institute of Agriculture, Knoxville, Tennessee 37996, United States
- Carbon and Composites Group, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Keonhee Kim
- Center for Renewable Carbon, University of Tennessee Institute of Agriculture, Knoxville, Tennessee 37996, United States
| | - Kalavathy Rajan
- Center for Renewable Carbon, University of Tennessee Institute of Agriculture, Knoxville, Tennessee 37996, United States
| | - Christopher C. Bowland
- Carbon and Composites Group, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Raghu N. Gurram
- American Science and Technology, Wausau, Wisconsin 54401, United States
- Attis Innovations LLC, Attis Industries, Milton, Georgia 30004, United States
| | | | - Ali Manesh
- American Science and Technology, Wausau, Wisconsin 54401, United States
- Attis Innovations LLC, Attis Industries, Milton, Georgia 30004, United States
| | - Nicole Labbé
- Center for Renewable Carbon, University of Tennessee Institute of Agriculture, Knoxville, Tennessee 37996, United States
| | - Amit K. Naskar
- Center for Renewable Carbon, University of Tennessee Institute of Agriculture, Knoxville, Tennessee 37996, United States
- Carbon and Composites Group, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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Lignin-Mediated Biosynthesis of ZnO and TiO2 Nanocomposites for Enhanced Antimicrobial Activity. JOURNAL OF COMPOSITES SCIENCE 2019. [DOI: 10.3390/jcs3030090] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In this work, we report the synthesis of fragmented lignin (FL) assisted zinc oxide (ZnO) and titanium oxide (TiO2) nanocomposites. The fragmented lignin synthesized from biomass (sugarcane bagasse) was used as a template to generate the morphology and crystallite structure of metal oxide nanomaterial. The nanocomposites were synthesized by a simple precipitation method, wherein fragmented lignin is used in alkaline medium as a template. X-ray diffraction (XRD) analysis shows the phase formation of hexagonal wurtzite ZnO and mixed phase formation of TiO2 as rutile and anatase. The morphology was studied by using field emission scanning electron microscopy (FE-SEM) and high-resolution transmission electron microscopy (HRTEM). The FE-SEM of pristine ZnO nanocomposites showed a cluster of particles whereas FL–ZnO NPs showed self-aligned nanoparticles in the form of rod shaped having average size 30–70 nm. Pristine TiO2 nanoparticles showed clusters of particles and FL–TiO2 nanocomposites showed well crystalline 41nm size nanocomposites. The FL acts as a surfactant which restrict the cluster formations. The band gap determined by diffuse reflectance spectra is 3.10 eV and 3.20 eV for FL–ZnO and FL–TiO2 nanocomposites, respectively. Photoluminescence spectra of both nanocomposites showed structural defects in the visible region. Further, the antimicrobial activity of pristine ZnO and TiO2 nanoparticles, and FL–ZnO and FL–TiO2 nanocomposites against Escherichia coli (ATCC25922), Staphylococcus aureus (ATCC25923) were studied under UV-A (315-400 nm) (8W) for 30min.
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In vitro cytotoxicity studies of industrial Eucalyptus kraft lignins on mouse hepatoma, melanoma and Chinese hamster ovary cells. Int J Biol Macromol 2019; 135:353-361. [DOI: 10.1016/j.ijbiomac.2019.05.111] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/30/2019] [Accepted: 05/18/2019] [Indexed: 02/06/2023]
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Sipponen MH, Lange H, Crestini C, Henn A, Österberg M. Lignin for Nano- and Microscaled Carrier Systems: Applications, Trends, and Challenges. CHEMSUSCHEM 2019; 12:2039-2054. [PMID: 30933420 PMCID: PMC6593669 DOI: 10.1002/cssc.201900480] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Indexed: 05/19/2023]
Abstract
To liberate society from its dependence on fossil-based fuels and materials it is pivotal to explore components of renewable plant biomass in applications that benefit from their intrinsic biodegradability, safety, and sustainability. Lignin, a byproduct of the pulp and paper industry, is a plausible material for carrying various types of cargo in small- and large-scale applications. Herein, possibilities and constraints regarding the physical-chemical properties of the lignin source as well as modifications and processing required to render lignins suitable for the loading and release of pesticides, pharmaceuticals, and biological macromolecules is reviewed. In addition, the technical challenges, regulatory and toxicological aspects, and future research needed to realize some of the promises that nano- and microscaled lignin materials hold for a sustainable future are critically discussed.
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Affiliation(s)
- Mika Henrikki Sipponen
- Department of Bioproducts and BiosystemsSchool of Chemical EngineeringAalto UniversityVuorimiehentie 1Espoo02150Finland
| | - Heiko Lange
- Department of PharmacyUniversity of Naples 'Federico II'Via Domenico MontesanoNaples80131Italy
| | - Claudia Crestini
- Department of Molecular Sciences and NanosystemsUniversity of Venice Ca' FoscariVia Torino 15530170Venice MestreItaly
| | - Alexander Henn
- Department of Bioproducts and BiosystemsSchool of Chemical EngineeringAalto UniversityVuorimiehentie 1Espoo02150Finland
| | - Monika Österberg
- Department of Bioproducts and BiosystemsSchool of Chemical EngineeringAalto UniversityVuorimiehentie 1Espoo02150Finland
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