Article: Magnetically responsive antibacterial nanocrystalline jute cellulose nanocomposites with moderate catalytic activity
Carbohydrate polymers. 2021 Jan. 01, v. 251
2021
Abstract: Nanocrystalline jute cellulose (NCJC) particles were prepared from bleached jute pulp by a modified acid hydrolysis. The surface of NCJC particles were first modified with iron oxide nanoparticles and then with Ag nanoparticles to prepare antibacterial ... ...
Abstract | Nanocrystalline jute cellulose (NCJC) particles were prepared from bleached jute pulp by a modified acid hydrolysis. The surface of NCJC particles were first modified with iron oxide nanoparticles and then with Ag nanoparticles to prepare antibacterial NCJC/Fe₃O₄/Ag nanocomposite particles. The successive structural modification of NCJC particles with Fe₃O₄ and Ag nanoparticles was confirmed. NCJC/Fe₃O₄/Ag nanocomposite particles responded well in external magnetic field. The SEM and TEM images of NCJC particles were in the nanometer range. NCJC/Fe₃O₄/Ag nanocomposite particles (0.005 mg mL⁻¹) completely degraded 20 mL of 0.1 mM congo red aqueous solution within 13 min aided by NaBH₄ reducing agent. NCJC/Fe₃O₄/Ag nanocomposite particles were moderately active against both Gram positive and Gram negative bacteria. A maximum inhibition zone of 21 mm was observed against Gram negative Shigella boydii bacteria with 60 mg/disc of nanocomposite particles. The antioxidant property of nanocomposite particles was also positive. |
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Keywords | Shigella boydii ; acid hydrolysis ; antioxidant activity ; aqueous solutions ; catalytic activity ; cellulose ; iron oxides ; jute ; magnetic fields ; nanocomposites ; nanocrystals ; nanosilver ; pulp |
Language | English |
Dates of publication | 2021-0101 |
Publishing place | Elsevier Ltd |
Document type | Article |
ZDB-ID | 1501516-6 |
ISSN | 1879-1344 ; 0144-8617 |
ISSN (online) | 1879-1344 |
ISSN | 0144-8617 |
DOI | 10.1016/j.carbpol.2020.117024 |
Database | NAL-Catalogue (AGRICOLA) |
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