Preparation and characterization of cellulose nanowhiskers from cotton fibres by controlled microbial hydrolysis
By P. Satyamurthy, Prateek U. Jain, R. Balasubramanya, N. Vigneshwaran. 2011
251 citations recorded by the source corpus.
The cellulolytic fungus Trichoderma reesei was used to prepare cellulose nanowhiskers (CNW) by controlled hydrolysis of microcrystalline cellulose (MCC). The penetration of fungus into the ordered regions of MCC resulted in reduction (10%) of its crystallinity. The zeta potential of fungal hydrolyzed CNW was similar to that of native MCC while that of CNW prepared by acid hydrolysis was five times higher due to its surface sulfation. Also, fungal hydrolyzed CNW resulted in monodomain structure under polarized light microscopy (PLM) while it was polydomain for that of acid hydrolyzed CNW. Atomic force microscopic (AFM) analysis confirmed the preferential orientation (anisotropy) of CNW on drying. Preparation of CNW by concentrated sulfuric acid hydrolysis process is energy intensive, environmentally hazardous and the surface of CNW is chemically modified (sulfated). But fungal hydrolysis resulted in CNW without any surface modification and such nanostructures show promise for applications in eco-friendly composites and pharmaceuticals.
Subfields: Biomaterials, Biomedical Engineering
View Paper: https://www.semanticscholar.org/paper/2fd47ba1dc8972d8a75e735a7ab571ffc4622a05
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Biomaterials
- Kristiina Oksman
- A. Dufresne
- Mehdi Jonoobi
- Y. Davoudpour
- Reza Oladi
- R. Davoodi
- Y. Hamzeh
- Junhua Zhang
In Biomedical Engineering
- A. Dufresne
- Kristiina Oksman
- Mehdi Jonoobi
- Y. Davoudpour
- Reza Oladi
- R. Davoodi
- Y. Hamzeh
- Junhua Zhang
Citations in the corpus
- Different preparation methods and properties of nanostructured cellulose from various natural resources and residues: a review (2015, methodology): “Although acid hydrolysis is usually performed using HCL or H2SO4, microbial hydrolysis has also been utilized to produce nanocrystals (Satyamurthy et al. 2011).”
- Spherical cellulose nanoparticles preparation from waste cotton using a green method (2014, background): “Obviously, cotton contains the highest percentage of the cellulose (N95%) among various cellulosic sources, and occupies almost 1/3 of the global market of textile fibers with annual output of over 23 million tons per year [13,17,18].”
- Preparation and characterization of nanocrystalline cellulose via low-intensity ultrasonic-assisted sulfuric acid hydrolysis (2014, background): “Nanocrystalline cellulose (NCC), can be produced from a great variety of sources such as microcrystalline cellulose (MCC) (Liu et al. 2011; Satyamurthy et al. 2011), bacterial cellulose (Roman and Winter 2004), cotton (Morais et al. 2012), hardwood (Eronen et al. 2011) and softwood (de Morais…”