Preparation of chitosan nanoparticles using methacrylic acid

Moura, Márcia R. de; Aouada, Fauze A.; Mattoso, Luiz H. C.

doi:10.1016/j.jcis.2008.02.006

Cited by 133 publications

(125 citation statements)

References 40 publications

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“…Chitosan nanoparticles were prepared by polymerization using methacrylic acid and potassium persulphate according to de Moura et al (2008) and Corradini et al (2010). Nitrogen (from Urea) (500 ppm), phosphorus (from calcium phosphate) (60 ppm) and potassium (from potassium chloride) (400 ppm) were loaded on the chitosan nanoparticles (Hasaneen et al, 2014).…”

Section: Materials and Methods: Preparation And Characterization Of Namentioning

confidence: 99%

Foliar application of nano chitosan NPK fertilizer improves the yield of wheat plants grown on two different soils

Abdel-Aziz¹,

Hasaneen²,

Omer³

2018

Egypt. J. Exp. Biol. (Bot.)

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He b a M a h m o u d Mo h a m m a d A b d e l -A zi zM o h a m m e d N a g i b A b d e l -Gh a n y H a s a n e e n A ya Mo h e b O me r Foliar application of nano chitosan NPK fertilizer improves the yield of w heat plants grow n on tw o different soils ABSTRACT: Foliar application of nano chitosan nitrogen, phosphorus and potassium (NPK) fertilizer decreased the life cycle of wheat plants with the ratio of 23.5% (130 days for yield production from date of sowing). Treatment of wheat plants with nano chitosan NPK fertilizer induced signif icant increases in all yield parameters, as compared with control yield parameters of normal non -fertilized and normal fertilized NPK wheat plants. Transmission electron microscopy investigations showed that nanoparticles were present in phloem tissues whi ch mean that nanoparticles were taken up and transported through phloem route from leaves to stem down to roots. Clay-sandy soil showed better results than those obtained for clay soil. Foliar application of nano fertilizer to wheat plants proved to be important to improve yield parameters of wheat plants and shorten the life cycle of the crop. KEY WORDS:Nanofertilizers, Clay soil, Clay -sandy Soil, Uptake, W heat. CORRESPONDENCE:He

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Section: Materials and Methods: Preparation And Characterization Of Namentioning

confidence: 99%

Foliar application of nano chitosan NPK fertilizer improves the yield of wheat plants grown on two different soils

Abdel-Aziz¹,

Hasaneen²,

Omer³

2018

Egypt. J. Exp. Biol. (Bot.)

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“…25 Radical polymerization, by combining different monomers, can regulate both nanoparticle shell and core properties. de Moura et al 26 prepared chitosan-methyl acrylic acid (CS-PMMA) nanoparticles by polymerization through ionic interaction between COO − produced by carboxyl dissociation from methyl acrylic acid and the amino group of chitosan. It was shown in a transmission electron microscope micrograph that these nanoparticles were uniformly spherical and quite consistent in size distribution.…”

Section: Polymerizationmentioning

confidence: 99%

Recent advances of chitosan nanoparticles as drug carriers

Zeng¹

2011

IJN

253

124

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Chitosan nanoparticles are good drug carriers because of their good biocompatibility and biodegradability, and can be readily modified. As a new drug delivery system, they have attracted increasing attention for their wide applications in, for example, loading protein drugs, gene drugs, and anticancer chemical drugs, and via various routes of administration including oral, nasal, intravenous, and ocular. This paper reviews published research on chitosan nanoparticles, including its preparation methods, characteristics, modification, in vivo metabolic processes, and applications.

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“…The CS-PMAA nanoparticles were obtained by polymerization of MAA in CS solution in a twostep process [11]. In the first step, chitosan was dissolved in a 0.5% (v/v) methacrylic acid aqueous solution for 12 h under magnetic stirring.…”

Section: Preparation Of Cs-pmaa Nanoparticlesmentioning

confidence: 99%

“…Due to its polymeric cationic characteristics, chitosan nanoparticles may interact with negatively charged molecules and polymers, showing a favorable interaction. The ability of controlling nanoparticle size is highly desirable for most applications in the field of nanotechnology [11]. In this work chitosan nanoparticles were obtained by polymerizing methacrylic acid for the incorporation of NPK fertilizers.…”

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confidence: 99%

A preliminary study of the incorparation of NPK fertilizer into chitosan nanoparticles

Corradini¹,

Moura²,

Mattoso³

2010

Express Polym. Lett.

372

156

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The use of slow release fertilizer has become a new trend to save fertilizer consumption and to minimize environmental pollution. Due to its polymeric cationic, biodegradable, bioabsorbable, and bactericidal characteristics, chitosan (CS) nanoparticle is an interesting material for use in controlled release systems. However, there are no attempts to explore the potential of chitosan nanoparticles as controlled release for NPK fertilizers. In this work chitosan nanoparticles were obtained by polymerizing methacrylic acid for the incorporation of NPK fertilizers. The interaction and stability of chitosan nanoparticle suspensions containing nitrogen (N), phosphorus (P) and potassium (K) were evaluated by FTIR spectroscopy, particle size analysis and zeta-potential. The FTIR results indicated the existence of electrostatic interactions between chitosan nanoparticles and the elements N, P and K. The stability of the CS-PMAA colloidal suspension was higher with the addition of nitrogen and potassium than with the addition of phosphorus, due to the higher anion charge from the calcium phosphate than the anion charges from the potassium chloride and urea. The mean diameter increase of the CS-PMAA nanoparticles in suspension with the addition of different compounds indicated that the elements are being aggregated on the surface of the chitosan nanoparticles

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Preparation of chitosan nanoparticles using methacrylic acid

Cited by 133 publications

References 40 publications

Foliar application of nano chitosan NPK fertilizer improves the yield of wheat plants grown on two different soils

Foliar application of nano chitosan NPK fertilizer improves the yield of wheat plants grown on two different soils

Recent advances of chitosan nanoparticles as drug carriers

A preliminary study of the incorparation of NPK fertilizer into chitosan nanoparticles

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