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Cellulose-Based NanoBioMaterials
Published in Bhupinder Singh, Om Prakash Katare, Eliana B. Souto, NanoAgroceuticals & NanoPhytoChemicals, 2018
Michael Ioelovich, Sumant Saini, Teenu Sharma, Bhupinder Singh
Other cellulose derivatives, ethers, esters, and oxycelluloses find diverse applications in biomedicine, pharmaceutics, cosmetics, and personal care. Cellulose acetate phthalate (CAP) is one of the most effective aids used as a protective coating for enteric capsules or tablets to impart them resistance to the acidic environment of the stomach (Edgar, 2007; Rowe et al., 2009). Carboxymethyl cellulose (CMC) is used as a binder for tablets, coating agent, thickener, and suspending aid (Kamel et al., 2008). Methylcellulose (MC) serves mainly as thickener and emulsifying and suspending agent in various flowable remedies (Glass and Haywood, 2006; Rowe et al., 2009). Some other soluble ethers — hydroxyethyl cellulose, hydroxypropyl cellulose, and hydroxypropylmethyl cellulose—also find application in cosmetics, hygiene, and medicine (Kamel et al., 2008).
Recent Scenario of Solid Biopolymer Electrolytes Based Dye-Sensitized Solar Cell
Published in Hieng Kiat Jun, Nanomaterials in Energy Devices, 2017
Rahul Singh, Pramod K. Singh, B. Bhattacharya
Carboxymethyl cellulose (CMC): Carboxymethyl cellulose (CMC) is prepared by soaking cellulose in aqueous sodium hydroxide and reacting with monochloroacetic acid (Stephen et al. 2006, Finkenstadt et al. 2005). Carboxymethyl cellulose doped with Lithium perchlorate and plasticizer Polycarboxylate based transparent solution of CMC/LiClO4/PC have been reported and ionic conductivity of the biopolymer electrolyte was found to be 2 × 10−4 S/cm. In another system, oleic acid based biopolymer electrolyte and NH4Br based electrolyte achieved ionic conductivity at 2.11 × 10−5 and 1.12 × 10−4 S/cm respectively (Samsudimi et al. 2010, Chai et al. 2013). Carboxymethyl cellulose can be doped with different concentration of DTAB/EC via solution casting technique. The highest ionic conductivity, σ, was found to be 2.37 × 10−3 S/cm at room temperature (Isa et al. 2013).
Protein- and Polysaccharide-Based Nanoparticles
Published in C. Anandharamakrishnan, S. Parthasarathi, Food Nanotechnology, 2019
S. Priyanka, S. Kritika, J.A. Moses, C. Anandharamakrishnan
Cellulose acetate phthalate is one of the non-toxic cellulose derivatives used in the pharmaceutical industry for encapsulation of bioactives (Hanafi et al., 2013). Furthermore, its insolubility in acidic pH (pH < 5.0) and solubility at higher pH makes it an appropriate wall material for protecting bioactive substances in the stomach’s acidic conditions, but it must be released in a controlled manner under the neutral condition of the small intestine. Carboxymethylcellulose (CMC) is a cellulose derivative that is hydrophilic polyanionic in nature. CMC is commonly used as a building block for assembling food-grade biopolymer particles (Tripathy and Raichur, 2013).
Fabrication and characterization of tea seed oil pickering emulsion stabilized synergistically by carboxymethylcellulose and β-cyclodextrin
Published in Journal of Dispersion Science and Technology, 2023
Xianghua Chai, Wenli Wang, Kegang Wu, Tong Zhang, Xuejuan Duan, Dong He, Yuqiang Huang, Zhihao Zhang
Carboxymethyl cellulose (CMC) is a cellulose derivative commonly used as a thickener and stabilizer in food, which is easily soluble in water, has good biocompatibility and low cost.[13] Single cyclodextrin and CMC stabilized emulsion are prone to flocculation, which is not conducive to the stability of the emulsion. Some researchers try to modify them or prepare them into compounds to improve emulsion stability,[14,15] but there are few studies on CMC and cyclodextrin co-stabilizing emulsion. In this work, the stability and rheology of CMC/β-CD Pickering emulsion are investigated by using carboxymethyl cellulose and β-cyclodextrin as stabilizers, and the cooperative stability mechanism of CMC/β-CD Pickering emulsion is also examined. The study provides a theoretical guidance to solve the easy flocculation of single cyclodextrin as Pickering emulsion stabilizer.
Strontium and selenium doped bioceramics incorporated polyacrylamide-carboxymethylcellulose hydrogel scaffolds: mimicking key features of bone regeneration
Published in Journal of Asian Ceramic Societies, 2021
Nonita Sarin, Mallesh Kurakula, K.J. Singh, Anuj Kumar, Davinder Singh, Saroj Arora
Carboxymethylcellulose (CMC) is the major cellulose derivative and water-soluble cellulose ether anionic polysaccharide having carboxylic groups which form strong coordination with metal ions. CMC shows good biocompatibility, biodegradability, nontoxicity and it is widely used in various tissue engineering, wound dressing, and drug delivery applications [7–9]. Acrylamide (AAm) is the monomer which polymerizes to form polyacrylamide (PAAm) as a synthetic hydrophilic polymer and exhibit very poor mechanical strength due to its soft and brittle nature [10]. PAAm has been used in diverse applications in the biomedical field, such as tissue engineering, drug delivery, and biosensor fluid. However, the utility of these polymeric scaffolds in tissue engineering has been restricted due to their release of acidic byproducts upon degradation of polymers on exposure with the physiological fluid as simulated body fluid (SBF) which adversely affects the cell viability and their proliferation. Recent studies demonstrated that the incorporation of bioceramics into the composite polymer matrix reduces the accumulation of acidic byproducts and provides a conducive environment for cell growth.