Journal ArticleDOI
Preparation and characterization of κ-carrageenan hydrogel for controlled release of copper and manganese micronutrients
Gulen Oytun Akalin,Mehlika Pulat +1 more
TLDR
A series of κ-carrageenan (κ-CG) hydrogels were prepared by using glutaraldehyde (GA) as crosslinker for controlled releasing of copper and manganese micronutrients as mentioned in this paper.Abstract:
A series of κ-carrageenan (κ-CG) hydrogels were prepared by using glutaraldehyde (GA) as crosslinker for controlled releasing of copper and manganese micronutrients. The hydrogels were characterized by gel content, swelling and degradation tests, Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR) and Scanning Electron Microscope (SEM) observations. The variations of swelling percentages (S%) with time, temperature and pH were determined for all hydrogels. As the amounts of crosslinker increased, S% decreased regularly in contrast to gel content results. The higher swelling values were obtained in basic medium than acidic and neutral mediums for all κ-CG hydrogels. Releasing of copper and manganese micronutrients from κ-CG hydrogels was investigated in water and soil. A simulated releasing model was also applied to estimate the releasing behaviors in agricultural irrigations. In all release studies, the cumulative release values increased with decreasing GA amounts. The release kinetic parameters were also calculated. It was detected that the releasing of micronutrients in soil was slower than that in water.read more
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Recent trends in organic coating based on biopolymers and biomass for controlled and slow release fertilizers.
TL;DR: In this paper, a review summarizes the recent advances in biopolymers and derived biopolymer used in the area of controlled-release fertilizers (CRF@BB), the coating technologies, and the parameters governing the release behavior through organic coating materials, as well as the effect of coated CRFs on the soil and plants growth.
Journal ArticleDOI
Development of soy protein isolate/κ-carrageenan composite hydrogels as a delivery system for hydrophilic compounds: Monascus yellow.
TL;DR: In this article, the authors developed soy protein isolate (SPI) and κ-carrageenan (KC) composite hydrogels as a delivery system for hydrophilic compounds.
Journal ArticleDOI
Facile and low-cost green synthesis of eco-friendly chitosan-silver nanocomposite as novel and promising corrosion inhibitor for mild steel in chilled water circuits
TL;DR: In this article, a green synthesis of eco-friendly silver nanoparticles (SNPs) using chitosan (CT) biopolymer as both reducing and protecting coating agent for SNPs was presented.
Journal ArticleDOI
Dual-crosslinked nanocomposite hydrogels based on quaternized chitosan and clindamycin-loaded hyperbranched nanoparticles for potential antibacterial applications.
Shibo Wei,Xiang Liu,Junhui Zhou,Jianhua Zhang,Anjie Dong,Pingsheng Huang,Weiwei Wang,Liandong Deng +7 more
TL;DR: A novel dual-crosslinked nanocomposite hydrogel (imine bond and nanoparticle crosslinking) was prepared based on quaternized chitosan and clindamycin-loaded hyperbranched nanoparticles, which demonstrated an excellent antibacterial activity for not only E. coli and S. aureus, but also Methicillin-resistant S.Aureus.
Journal ArticleDOI
The effect of swellable carboxymethyl cellulose coating on the physicochemical stability and release profile of a zinc hydroxide nitrate–sodium dodecylsulphate–imidacloprid
Sharifah Norain Mohd Sharif,Norhayati Hashim,Illyas Md Isa,Suriani Abu Bakar,Mohamad Idris Saidin,Mohamad Syahrizal Ahmad,Mazidah Mamat,Mohd Zobir Hussein,Rahadian Zainul,Azlan Kamari +9 more
TL;DR: In this article, carboxymethyl cellulose (CMC) is proposed as a coating agent to encapsulate zinc hydroxide nitrate, sodium dodecylsulphate, and imidacloprid for the implementation of controlled release formulation (CRF) in pesticide.
References
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BookDOI
Handbook of plant nutrition
Allen V. Barker,David Pilbeam +1 more
TL;DR: Introduction, Allen V. Barker and David J. Pilbeam Essential Elements-Macronutrients Nitrogen, and K Drihem Conclusion.
Journal ArticleDOI
Manganese as essential and toxic element for plants: transport, accumulation and resistance mechanisms
TL;DR: In this paper, the role of Mn as an essential micronutrient and as a toxic element to higher plants as well as their transport and tolerance mechanisms is discussed and the forms and dynamics of this element in soils and the importance of the acidity for this dynamic and availability for plants are also given.
Journal ArticleDOI
Superabsorbent hydrogels based on cellulose for smart swelling and controllable delivery
TL;DR: In this paper, a superabsorbent hydrogels were prepared from carboxymethylcellulose sodium (CMC) and cellulose in the NaOH/urea aqueous system by using epichlorohydrin (ECH) as crosslinker.
Journal ArticleDOI
Review on materials & methods to produce controlled release coated urea fertilizer.
TL;DR: The development of CRCU is a green technology that not only reduces nitrogen loss caused by volatilization and leaching, but also alters the kinetics of nitrogen release, which provides nutrients to plants at a pace that is more compatible with their metabolic needs.
Journal ArticleDOI
Synthesis and swelling behaviors of sodium carboxymethyl cellulose-g-poly(AA-co-AM-co-AMPS)/MMT superabsorbent hydrogel
TL;DR: In this paper, a graft copolymerization of acrylic acid (AA)/acrylamide (AM)/2-acrylamide (AM), carboxylate, carboxamide and sulfate was used to synthesize superabsorbents.
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