Rinaudo, M. Properties and applications. Prog. Polym. Sci. 31, 603–632 (2006).
Kang, B., Dai, Y. D., Zhang, H. Q. & Chen, D. Synergetic degradation of chitosan with gamma radiation and hydrogen peroxide. Polym. Degrad. Stabil. 92, 359–362 (2007).
Tomida, H., Fujii, T., Furutani, N., Michihara, A., Yasufuku, T., Akasaki, K., Maruyama, T., Otagiri, M., Gebicki, J. M. & Anraku, M. Antioxidant properties of some different molecular weight chitosans. Carbohydr. Res. 344, 1690–1696 (2009).
Qin, C., Du, Y., Xiao, L., Li, Z. & Gao, X. Enzymic preparation of watersoluble chitosan and their antitumor activity. Int. J. Biol. Macromol. 31, 111–117 (2002).
Pedroso, A. T. R., Arrebato, M. A. R., Cardenas, R. M. & Bautista-Baños, S. Induction of defense response of Oryza sativa L. Against Pyricularia grisea (Cooke) Sacc. by treating seeds with chitosan and hydrolyzed chitosan. Pestic. Biochem. Phys. 89, 206–215 (2007).
Rodrigues, F. A. & Datnoff, L. E. Silicon and Plant Diseases, (Springer, Switzerland, 2015).
Ma, J. F. Role of silicon in enhancing the resistance of plants to biotic and abiotic stresses. Soil. Sci. Plant Nutr. 50, 11–18 (2004).
Karunakaran, G., Suriyaprabha, R., Manivasakan, P., Yuvakkumar, R., Rajendran, V., Prabu, P. & Kannan, N. Effect of nanosilica and silicon sources on plant growth promoting rhizobacteria, soil nutrients and maize seed germination. IET Nanobiotechnol. 7, 70–77 (2013).
Siddiqui, M. H. & Al-Whaibi, M. H. Role of nano-SiO2 in germination of tomato (Lycopersicum esculentum seeds Mill.). Saudi J. Biol. Sci. 21, 13–17 (2014).
Soltani, R. D. C., Khataee, A., Safari, M. & Joo, S. W. Preparation of bio-silica/chitosan nanocomposite for adsorption of a textile dye in aqueous solutions. Int. Biodeter. Biodegr. 85, 383–391 (2013).
Chen, F. & Zhu, Y. Chitosan enclosed mesoporous silica nanoparticles as drug nano-carriers: Sensitive response to the narrow pH range. Micropor. Mesopor. Mater. 150, 83–89 (2012).
Podust, T. V., Kulik, T. V., Palyanytsya, B. B., Gun’Ko, V. M., Tóth, A., Mikhalovska, L., Menyhárd, A. & László, K. Chitosan-nanosilica hybrid materials: preparation and properties. Appl. Surf. Sci. 320, 563–569 (2014).
Yang, L., Zhao, P., Wang, L., Filippus, I. & Meng, X. H. Synergistic effect of oligochitosan and silicon on inhibition of Monilinia fructicola infections. J. Sci. Food Agric. 90, 630–634 (2010).
Nguyen, N. T., Hoang, D. Q., Nguyen, N. D., Nguyen, D. H. & Nguyen, Q. H. Preparation, characterization, and antioxidant activity of water-soluble oligochitosan, Green. Process. Synth. doi:https://doi.org/10.1515/gps-2016-0126 (2017).
Wang, W., Martin, J. C., Zhang, N. & Sun, L. Harvesting silica nanoparticles from rice husks. J. Nanopart. Res. 13, 6981–6990 (2011).
Bakar, R. A., Yahya, R. & Neon, G. S. Production of high purity amorphous silica from rice husk. Procedia Chem. 19, 189–195 (2016).
Athinarayanan, J., Periasamy, V. S., Alhazmi, M. & Alshatwi, A. Synthesis of biogenic silica nanoparticles from rice husks for biomedical applications. Ceram. Int. 41, 275–281 (2015).
Knaul, J. Z., Kasaai, M. R., Bui, V. T. & Creber, K. A. M. Characterization of deacetylated chitosan and chitosan molecular weight review. Can. J. Chem. 76, 1699–1706 (1998).
Rafiee, S. S. E., Feyzi, M. & Shaterzadeh, M. Optimization of synthesis and characterization of nanosilica produced from rice husk (a common waste material). Int. Nano. Lett. 2, 29–37 (2012).
Ha, T. C. N., Ha, T. H. & Le, V. H. Synthesis of silica nanoparticles from Vietnamese rice husk by sol–gel method. Nanoscale Res. Lett. 8, 58–68 (2013).
Sharma, A. & Rao, T. R. Kinetics of pyrolysis of rice husk. Bioresource Technol. 67, 53–59 (1999).
Yan, R., Yang, H., Chen, H., Lee, D. H. & Zheng, C. Characteristics of hemicellulose, cellulose, and lignin pyrolysis. Fuel 86, 1781–1788 (2007).
James, J. & Rao, M. S. Silica from rice husk through thermal decomposition. Thermochim. Acta 97, 329–336 (1986).
Wang, L., Xu, G., Liu, J. & Wu, J. FTIR and XPS analysis of the changes in bamboo chemical structure decayed by white-rot and brown-rot fungi. Appl. Surf. Sci. 280, 799–805 (2013).
Martinez, J. R, Ruiz, F., Vorobiev, Y., Pérez-Robles, F. & González-Hernández, J. Infrared spectroscopy analysis of the local atomic structure in silica prepared by sol-gel. J. Chem. Phys. 109, 7511–7514 (1998).
Pol, V. G., Gedanken, A. & Calderon-Moreno, J. Deposition of gold nanoparticles on silica spheres: a sonochemical approach. Chem. Mater. 15, 1111–1118 (2003).
Fernandes, I. J., Calheiro, D., Kieling, A. G., Moraes, C. A. M., Rocha, T. L. A. C., Brehm, F. A. & Modolo, R. C. E. Characterization of rice husk ash produced using different biomass combustion techniques for energy. Fuel 165, 351–359 (2016).
Shi, S., Wang, W., Liu, L., Wu, S., Wei, Y. & Li, W. Effect of chitosan/nano-silica coating on the physicochemical characteristics of longan fruit under ambient temperature. J. Food Eng. 118, 125–131 (2013).
Witoon, T. & Chareonpanich, M. Interaction of chitosan with tetraethyl orthosilicate on the formation of silica nanoparticles: effect of pH and chitosan concentration. Ceram. Int. 38, 5999–6007 (2012).
Sun, T., Wu, C. L., Hao, H., Dai, Y. & Li, J. R. Preparation and preservation properties of the chitosan coatings modified with the in situ synthesized nano SiOx. Food Hydrocoll. 54, 130–138 (2016).
Witoon, T., Chareonpanich, M. & Limtrakul, J. Effect of acidity on the formation of silica–chitosan hybrid materials and thermal conductive property. J. Sol-Gel Sci. Technol. 51, 146–152 (2009).
Witoon, T., Tepsarn, S., Kittipokin, P., Embley, B. & Chareonpanich, M. Effect of pH and chitosan concentration on precipitation and morphology of hierarchical porous silica. J. Non-Cryst. Solids 357, 3513–3519 (2011).
Podust, T. V., Kulik, T. V., Palyanytsya, B. B., Gun’ko, V. M., Tóth, A., Mikhalovska, L., Menyhárd, A. & László, K. Chitosan-nanosilica hybrid materials: preparation and properties. Appl. Surf. Sci. 320, 563–569 (2014).
Tiraferri, A., Maroni, P., Rodríguez, D. C. & Borkovec, M. Mechanism of chitosan adsorption on silica from aqueous solutions. Langmuir 30, 4980–4988 (2014).
Al-Mulla, A. & Al-Sagheer, F. Determination of kinetic parameters for the degradation of chitosan/silica hybrid nano composites. J. Polym. Environ. 21, 504–511 (2013).
Yin, H., Zhao, X. & Du, Y. Oligochitosan: a plant diseases vaccine—a review. Carbohyd. Polym. 82, 1–8 (2010).
