Synthesis and characterization of gellan gum: chitosan biohydrogels for soil humidity control and fertilizer release

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• 作者：Rodrigo C. Sabadini ; Virginia C. A. Martins ; Agnieszka Pawlicka
• 关键词：Gellan gum ; Chitosan ; Hydrogel ; Fertilizer release
• 刊名：Cellulose
• 出版年：2015
• 出版时间：June 2015
• 年：2015
• 卷：22
• 期：3
• 页码：2045-2054
• 全文大小：1,523 KB
• 参考文献：Agnihotri SA, Aminabhavi TM (2005) Development of novel interpenetrating network gellan gum-poly(vinyl alcohol) hydrogel microspheres for the controlled release of carvedilol. Drug Dev Indust Pharm 31:491-03. doi:10.-080/-363904050021587- View Article
  Amaike M, Senoo Y, Yamamoto H (1998) Sphere, honeycomb, regularly spaced droplet and fiber structures of polyion complexes of chitosan and gellan. Macromol Rapid Commun 19:287-89View Article
  Barikani MH, Hepburn C (1992) Determination of crosslink density by swelling in the castable polyurethane elastomer based on 1/4-cyclohexane diisocyanate and para-phenylene diisocyanate. Iran J Polym Sci Technol 1:1-
  Barker ED (2010) Hydrogel for controlled delivery of biologically active agent comprises dispersed phase including polymeric network comprising hydrolyzable polymeric substance derived from starch, and cross-linker; and dispersion medium containing water. US2010331232-A1
  Bortolin A, Aouada FA, de Moura MR, Ribeiro C, Longo E, Mattoso LHC (2012) Application of polysaccharide hydrogels in adsorption and controlled-extended release of fertilizers processes. J Appl Polym Sci 123:2291-298. doi:10.-002/?app.-4742 View Article
  Carlfors J, Edsman K, Petersson R, Jornving K (1998) Rheological evaluation of Gelrite (R) in situ gels for ophthalmic use. Eur J Pharm Sci 6:113-19View Article
  Corradini E, de Moura MR, Mattoso LHC (2010) A preliminary study of the incorparation of NPK fertilizer into chitosan nanoparticles. Express Polym Lett 4:509-15. doi:10.-144/?expresspolymlett--010.-4 View Article
  Coutinho DF et al (2010) Modified Gellan Gum hydrogels with tunable physical and mechanical properties. Biomaterials 31:7494-502View Article
  Coviello T et al (1998) A novel co-crosslinked polysaccharide: studies for a controlled delivery matrix. J Controlled Rel 55:57-6View Article
  Dai YN, Li P, Zhang JP, Wang AO, Wei Q (2008) Swelling characteristics and drug delivery properties of nifedipine-loaded pH sensitive alginate-chitosan hydrogel beads. J Biomed Mater Res B 86B:493-00. doi:10.-002/?Jbm.?B.-1046 View Article
  Ferris CJ, Panhuis MIH (2009) Conducting bio-materials based on gellan gum hydrogels. Soft Matter 5:3430-437. doi:10.-039/?b909795c View Article
  Flory PJ, Rehner J (1943) Statistical mechanics of cross-linked polymer networks II Swelling. J Chem Phys 11:521-26. doi:10.-063/-.-723792 View Article
  Giavasis I, Harvey LM, McNeil B (2000) Gellan gum. Crit Rev Biotechnol 20:177-11View Article
  Guo MY, Liu MZ, Hu Z, Zhan FL, Wu L (2005) Preparation and properties of a slow release NP compound fertilizer with superabsorbent and moisture preservation. J Appl Polym Sci 96:2132-138. doi:10.-002/?app.-1140 View Article
  Guzman-Villanueva D, Smyth HDC, Herrera-Ruiz D, El-Sherbiny IM (2011) A novel aerosol method for the production of hydrogel particles. J Nanomater. doi:10.-155/-011/-07508
  Hatakeyema T, Yamauchi A, Hatakeyema H (1984) Studies on bound water in polyvinyl-alcohol)-hydrogel by DSC and FT NMR. Eur Polym J 20:61-4View Article
  Jansson PE, Lindberg B, Sandford PA (1983) Structural studies of gellan gum, an extracellular polysaccharide elaborated by Pseudomonas-elodea. Carbohydr Res 124:135-39View Article
  Malaise S et al (2014) Bioresorption mechanisms of chitosan physical hydrogels: a scanning electron microscopy study. Mat Sci Eng C Mater 42:374-84. doi:10.-016/?j.?msec.-014.-4.-60 View Article
  Milas M, Shi X, Rinaudo M (1990) On the physicochemical properties of gellan gum. Biopolymers 30:451-64View Article
  Noor ISM, Majid SR, Arof AK, Djurado D, Pawlicka A (2012) Characteristics of gellan gum—LiCF3SO3 polymer electrolyte. Solid State Ion 225:649-53. doi:10.-016/?j.?ssi.-012.-3.-19 View Article
  Ohkawa K, Kitagawa T, Yamamoto H (2004) Preparation and characterization of chitosan-gellan hybrid capsules formed by self-assembly at an aqueous solution interface. Macromol Mat Eng 289:33-0. doi:10.-002/?mame.-00300188 View Article
  Omidian H, Zohuriaan-Mehr MJ (2002) DSC studies on synthesis of superabsorbent hydrogels. Polymer 43:269-77. doi:10.-016/?S0032-3861(01)00546-8 View Article
  Ostrowska-Czubenko J, Gierszewska-Druzynska M (2009) Effect of ionic crosslinking on the water state in hydrogel chitosan membranes. Carbohydr Polym 77:590-98View Article
  Paulsson M, Edsman K (2002) Controlled drug release from gels using lipophilic interactions of charged substances with surfactants and polymers. J Coll Interface Sci 248:194-00. doi:10.-006/?jcis.-001.-182 View Article
  Pawlicka A, Donoso JP (2010) Polymer electrolytes based on natural polymers. In: Sequeira CAC, Santos DMF (eds) Polymer electrolytes: properties and applications. Woodhead Publishing Limited, Cambridge, pp 95-28View Article
  Ramaiah S, Kumar TMP, Ravi V (2007) Studies on biopolymers for ophthalmic drug delivery. J Macromol Sci A 44:229-34. doi:10.-080/-0601
• 作者单位：Rodrigo C. Sabadini (1)
  Virginia C. A. Martins (1)
  Agnieszka Pawlicka (1)
  
  1. Instituto de Química de S?o Carlos, Universidade de S?o Paulo, Av. Trabalhador S?ocarlense 400, S?o Carlos, SP, 13566-560, Brazil
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Bioorganic Chemistry
  Physical Chemistry
  Organic Chemistry
  Polymer Sciences
  
• 出版者：Springer Netherlands
• ISSN：1572-882X

文摘

Gellan gum-chitosan superabsorbent hydrogels were obtained by crosslinking reaction throughout the ionic bond formation. The network formation between high acetyl gellan gum (HAGG) and chitosan (CH) with different proportions was confirmed by FTIR spectra. The thermal stability up to 250?°C was obtained from thermogravimetry and high water swelling from differential scanning calorimetry. It was observed that as the quantity of crosslinks increases, the water sorption and average molecular weight between the crosslinks decrease with a decrease of the HAGG content in the networks. The best results of water absorption of more than 218 times the dry weight of the sample were obtained for the sample HAGG-CH with 4:1 composition. This sample also evidenced the lowest amount of crosslinks when compared with the sample with 1:4 proportion, being 1.1?×?10? and 11.1?×?10?, respectively. The water evaporation analysis showed that the samples retain water for about 500?min, i.e., more than twice as long when compared to 200?min for pure water. Moreover, the HAGG-CH samples were tested as commercial monopotassium phosphate fertilizer-release agents showing that almost complete release occurred in approximately 8?h, and its quantity is mainly influenced by the concentration of fertilizer used rather than the hydrogel composition. Finally, the samples were lyophilized and their morphology analyzed by scanning electron microscopy.