当前位置： SCI文献检索 > INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES期刊下所有文献 > Preparation and characterization of chitosan/polyacrylic acid/copper nanocomposites and their impact on onion production.

Preparation and characterization of chitosan/polyacrylic acid/copper nanocomposites and their impact on onion production.

Abstract：

:Chitosan nanoparticles (CS-NPs) and chitosan/polyacrylic acid hydrogel nanoparticles (CS/PAA-HNPs) were obtained by ionic gelation with tripolyphosphate anions and copolymerization of CS with acrylic acid (AA), respectively. The prepared NPs were loaded by different concentrations of copper (1, 2 and 3% with respect to CS) to obtain chitosan/copper nanocomposites (CS/Cu-NCs) and chitosan/polyacrylic acid/copper hydrogel nanocomposites (CS/PAA/Cu-HNCs). The prepared NPs and their NCs were characterized by different techniques. The swelling properties and copper release from CS/Cu-NCs and CS/PAA/Cu-HNCs were evaluated. The antibacterial activity of the prepared samples against bacteria (e.g., Staphylococcus aureus and Pseudomonas aeruginosa), fungi, and yeast were investigated. The results displayed that the copper release, as well as the swelling percentage of CS/PAA/Cu-HNCs, were higher than that of CS/Cu-NCs. Furthermore, the impact of using CuSO4, CS/Cu-NCs, and CS/PAA/Cu-HNCs as a different source of copper on chlorophyll content, vegetative growth, minerals content, and the yield of onion plants during two seasons 2016 and 2017 were studied. It was found that the yield, plant growth, and nutrient content of onion bulbs were improved using CS/PAA-HNPs, which was loaded with 75 ppm copper, as foliar spray for onion plants.

journal_name

Int J Biol Macromol

journal_title

International journal of biological macromolecules

authors

Abd El-Aziz ME,Morsi SMM,Salama DM,Abdel-Aziz MS,Abd Elwahed MS,Shaaban EA,Youssef AM

doi

10.1016/j.ijbiomac.2018.11.155

subject

Has Abstract

pub_date

2019-02-15 00:00:00

pages

856-865

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(18)35550-8

journal_volume

123

pub_type

杂志文章

相关文献

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES文献大全
  • Floating mucoadhesive alginate beads of amoxicillin trihydrate: A facile approach for H. pylori eradication.

    abstract：:This study investigates the design of sunflower oil entrapped floating and mucoadhesive beads of amoxicillin trihydrate using sodium alginate and hydroxypropyl methylcellulose as matrix polymers and chitosan as coating polymer to localize the antibiotic at the stomach site against Helicobacter pylori. Beads prepared b...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2016.05.027

    authors： Dey SK,De PK,De A,Ojha S,De R,Mukhopadhyay AK,Samanta A

    更新日期：2016-08-01 00:00:00

  • Overexpression of miR-335 inhibits the migration and invasion of osteosarcoma by targeting SNIP1.

    abstract：:MicroRNAs (miRNAs) are key regulators in the development and progression of osteosarcoma (OS). Based on our previous microarray data, we found that miR-335 expression was downregulated in OS tissue relative to normal tissue. Herein, we further found that miR-335 was downregulated in OS cell lines relative to the osteo...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2019.04.016

    authors： Xie Y,Deng H,Wei R,Sun W,Qi Y,Yao S,Cai L,Wang Y,Deng Z

    更新日期：2019-07-15 00:00:00

  • Eco-sustainable systems based on poly(lactic acid), diatomite and coffee grounds extract for food packaging.

    abstract：:In the food packaging sector many efforts have been (and are) devoted to the development of new materials in order to reply to an urgent market demand for green and eco-sustainable products. Particularly a lot of attention is currently devoted both to the use of compostable and biobased polymers as innovative and prom...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2018.02.018

    authors： Cacciotti I,Mori S,Cherubini V,Nanni F

    更新日期：2018-06-01 00:00:00

  • Regenerated cellulose/wool blend enhanced biomimetic hydroxyapatite mineralization.

    abstract：:The current article investigates the effect of bioactive cellulose/wool blend on calcium phosphate biomimetic mineralization. Regenerated cellulose/wool blend was prepared by dissolution-regeneration of neat cellulose and natural wool in 1-butyl-3-methyl imidazolium chloride [Bmim][Cl], as a solvent for the two polyme...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2016.07.077

    authors： Salama A,El-Sakhawy M

    更新日期：2016-11-01 00:00:00

  • Purification, physicochemical properties, and statistical optimization of fibrinolytic enzymes especially from fermented foods: A comprehensive review.

    abstract：:Fibrinolytic enzymes are proteases responsible for cleavage of fibrin mesh in thrombus clots, which are the primary causative agents in cardiovascular diseases. Developing safe, effective and cheap thrombolytic agents are important for prevention and cure of thrombosis. Although a wide variety of sources have been dis...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章,评审

    doi：10.1016/j.ijbiomac.2020.07.303

    authors： Moula Ali AM,Bavisetty SCB

    更新日期：2020-11-15 00:00:00

  • Effects of surfactant, salt and solvent on the structure and activity of adenosine deaminase: molecular dynamic and spectrophotometric studies.

    abstract：:Effects of sodium dodecyl sulfate, dodecyltrimethylammonium bromide, sodium chloride, sodium sulfate, methanol and ethanol, on the structure and activity of adenosine deaminase (ADA) were investigated by UV-Vis, circular dichroism spectrophotometry and molecular dynamics (MDs) studies. Relative activity, experimental ...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2008.04.007

    authors： Ajloo D,Taghizadeh E,Saboury AA,Bazyari E,Mahnam K

    更新日期：2008-08-15 00:00:00

  • Applications of gellan natural polymer microspheres in recombinant catechol-O-methyltransferase direct capture from a Komagataella pastoris lysate.

    abstract：:The present work shows the application of nickel- and magnesium-crosslinked gellan microspheres in ionic and affinity capture strategies to directly extract hSCOMT from the complex Komagataella pastoris lysate through a simple batch method. Both formulations present similar morphology, but nickel-crosslinked microsphe...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2020.12.225

    authors： Gomes D,Gonçalves C,Gonçalves AM,Queiroz JA,Sousa A,Passarinha LA

    更新日期：2021-01-07 00:00:00

  • Polysaccharides and proteins-based nanogenerator for energy harvesting and sensing: A review.

    abstract：:Nanogenerator is a promising energy harvesting device that can scavenge tiny mechanical energy from the surrounding environment, and then convert it into electricity. Natural bio-polymers are the potential candidates for the design of nanogenerators due to their excellent characteristics like piezoelectricity, triboel...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章,评审

    doi：10.1016/j.ijbiomac.2021.01.109

    authors： Cao L,Qiu X,Jiao Q,Zhao P,Li J,Wei Y

    更新日期：2021-01-20 00:00:00

  • Effect of a modified thymine on the structure and stability of [d(TGGGT)]4 quadruplex.

    abstract：:Telomeric guanine-rich sequence can adopt quadruplex structures that are important for their biological role in chromosomal stabilisation. G quartets are characterised by the cyclic hydrogen bonding of four guanine bases in a coplanar arrangement and their stability is ion-dependent. In this work we compare the stabil...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/s0141-8130(02)00073-9

    authors： Petraccone L,Erra E,Nasti L,Galeone A,Randazzo A,Mayol L,Barone G,Giancola C

    更新日期：2003-01-15 00:00:00

  • Preparation and application of a polymer with pH/temperature-responsive targeting.

    abstract：:Targeted drug carrier systems not only prolong the long-term circulation of drugs, but also improve their bioavailability. To obtain a pH/temperature synergistically responsive polymer carrier, temperature and pH-sensitive groups were chemically grafted onto a cassava starch backbone. Secondly, the structure of the po...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2020.09.248

    authors： Kou Z,Dou D,Mo H,Ji J,Lan L,Lan X,Zhang J,Lan P

    更新日期：2020-12-15 00:00:00

  • Characterization and application of keratinolytic paptidases from Bacillus spp.

    abstract：:Solid keratin-rich waste management is one of essential research area in nowadays. Conventional chemical and high thermal keratin waste decomposition methods are fully explored and not enough effective for future biotechnology perspectives. However, traditional keratin-rich waste decomposition methods could be replace...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2018.03.046

    authors： Gegeckas A,Šimkutė A,Gudiukaitė R,Čitavičius DJ

    更新日期：2018-07-01 00:00:00

  • Extraction of polysaccharides from maca: Characterization and immunoregulatory effects on CD4+ T cells.

    abstract：:The immunomodulatory effects of maca polysaccharides (MCPs) on macrophages have been demonstrated in many studies. However, the effects of MCPs on CD4+ T cells have not been studied. Four water-soluble MCPs, labeled MCP1 (weight-average molecular weights [Mws] of 896.1 and 276.6 kDa), MCP2 (Mws of 337.8 and 219.0 kDa)...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2020.03.098

    authors： Chang Y,Lu W,Chu Y,Yan J,Wang S,Xu H,Ma H,Ma J

    更新日期：2020-07-01 00:00:00

  • Optimized antioxidant peptides fractions preparation and secondary structure analysis by MIR.

    abstract：:The soybean protein was hydrolyzed by Alcalase Food grade (FG) 2.4 L and the optimal hydrolysis parameters of strongest antioxidant capacity of peptides were obtained using response surface methodology (RSM). The effects of reaction temperature, pH value and ratio of enzyme/soybean protein powder ([E/S]) on the 2,2-di...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2013.04.008

    authors： Lin S,Wang J,Zhao P,Pang Y,Ye H,Yuan Y,Liu J,Jones G

    更新日期：2013-08-01 00:00:00

  • Synergistic role of three dimensional niche and hypoxia on conservation of cancer stem cell phenotype.

    abstract：:Hypoxia is a pathalogical condition in which tissues are deprived of adequate oxygen supply. The hypoxia effect on tumors has a critically important role on maintenance of cancer stem cell phenotype. The aim of this study is to investigate the effects of hypoxia on cancer stem cells on three dimensional (3D) in vitro ...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2015.12.053

    authors： Gorgun C,Ozturk S,Gokalp S,Vatansever S,Gurhan SI,Urkmez AS

    更新日期：2016-09-01 00:00:00

  • Relationship between the initial rate of protein aggregation and the lag period for amorphous aggregation.

    abstract：:Lag period is an inherent characteristic of the kinetic curves registered for protein aggregation. The appearance of a lag period is connected with the nucleation stage and the stages of the formation of folding or unfolding intermediates prone to aggregation (for example, the stage of protein unfolding under stress c...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2014.04.046

    authors： Borzova VA,Markossian KA,Kurganov BI

    更新日期：2014-07-01 00:00:00

  • Structuring oil-in-water emulsion by forming egg yolk/alginate complexes: Their potential application in fabricating low-fat mayonnaise-like emulsion gels and redispersible solid emulsions.

    abstract：:Overconsumption of fat-rich foods has caused increasing incidences of human chronic diseases. Thus, it is promising to fabricate reduced-fat foods, but the reduction in fat content often causes undesired textural changes in foods. In this study, we showed a facile method to structure oil-in-water emulsions via the ele...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2020.01.106

    authors： Yang X,Li A,Yu W,Li X,Sun L,Xue J,Guo Y

    更新日期：2020-03-15 00:00:00

  • Modulating the gut microbiota and inflammation is involved in the effect of Bupleurum polysaccharides against diabetic nephropathy in mice.

    abstract：:Dysbiosis of gut microbiota and low grade inflammation has gradually become a highly potential therapeutic agent for diabetic nephropathy (DN). It has been reported that a large number of polysaccharides have positive effects on DN, including Bupleurum polysaccharides. However, the mechanism remained unclear. This stu...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2019.03.242

    authors： Feng Y,Weng H,Ling L,Zeng T,Zhang Y,Chen D,Li H

    更新日期：2019-07-01 00:00:00

  • Chitosan and gelatin materials incorporated with phenolic extracts of grape seed and jabuticaba peel: Rheological, physicochemical, antioxidant, antimicrobial and barrier properties.

    abstract：:In this study, chitosan and gelatin materials incorporated with grape seed (Vitis vinifera L.) (VSE) and jabuticaba peel (Plinia cauliflora) (PPE) extracts were developed with potential application as food coatings. It was evaluated how the concentration of the extracts and their addition order in the polymeric matrix...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2020.05.240

    authors： Rodrigues MÁV,Bertolo MRV,Marangon CA,Martins VDCA,Plepis AMG

    更新日期：2020-10-01 00:00:00

  • Structural study on methacrylamide-grafted Tussah silk fibroin fibres.

    abstract：:Tussah silk fibroin fibres were modified by grafting with methacrylamide (MAA), with weight gains ranging between 2.6% and 71.4%. Raman and IR spectroscopic analyses showed that upon grafting the fibres underwent slight conformational changes towards a more unordered state, due to the covalent and hydrogen bonds inter...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2016.03.057

    authors： Pavoni E,Tozzi S,Tsukada M,Taddei P

    更新日期：2016-07-01 00:00:00

  • Structural alteration of low pH, low temperature induced protonated form of DNA to the canonical form by the benzophenanthridine alkaloid nitidine: Spectroscopic exploration.

    abstract：:Polymorphism of DNA plays a very important part of research relating to the drug-DNA interactions. Here main focus of our investigation is to monitor the interaction of the benzophenanthridine plant alkaloid, nitidine (NIT) with two different forms of DNA i.e. B-DNA and protonated form of DNA maintaining proper temper...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2018.08.031

    authors： Haque L,Bhuiya S,Giri I,Chowdhury S,Das S

    更新日期：2018-11-01 00:00:00

  • Analysis of Aspergillus sp. lipase immobilization for the application in organic synthesis.

    abstract：:Nowadays, for the industrial implementations, especially in the area of organic synthesis, immobilized enzymes are preferred over their soluble forms. Present study aimed to find fast, cost-efficient, and effective way of lipase immobilization for the use in organic media. Lipase from Aspergillus sp. (Resinase A 2X) w...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2017.11.010

    authors： Gricajeva A,Kazlauskas S,Kalėdienė L,Bendikienė V

    更新日期：2018-03-01 00:00:00

  • Adsorption of mercury ions from wastewater aqueous solution by amide functionalized cellulose from sugarcane bagasse.

    abstract：:A novel effective cellulose-based adsorbent was prepared through two common reactions, which included the esterification of sugarcane bagasse cellulose with excess stearic acid and the reaction of grafting polyacrylamide brush by ultraviolet radiation initiation. The adsorbent can effectively adsorb Hg(II) ion from wa...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2017.11.027

    authors： Sun N,Wen X,Yan C

    更新日期：2018-03-01 00:00:00

  • Complete mitochondrial genome of Parasesarma affine (Brachyura: Sesarmidae): Gene rearrangements in Sesarmidae and phylogenetic analysis of the Brachyura.

    abstract：:In this study, the complete mitochondrial DNA (mtDNA) sequence of the crab Parasesarma affine is determined, characterized and compared with other decapod crustaceans. The P. affine mitochondrial genome (mitogenome) is 15,638 bp in size, and contains 13 protein-coding genes (PCGs), 2 ribosomal RNA (rRNA) genes, 22 tra...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2018.06.056

    authors： Wang Z,Wang Z,Shi X,Wu Q,Tao Y,Guo H,Ji C,Bai Y

    更新日期：2018-10-15 00:00:00

  • In vitro digestion and human gut microbiota fermentation of longan pulp polysaccharides as affected by Lactobacillus fermentum fermentation.

    abstract：:This study investigated the effect of Lactobacillus fermentum fermentation treatment on the gastrointestinal digestion and fermentation in vitro of polysaccharides from longan pulp. Polysaccharide isolated from unfermented and fermented longan pulp named LP and LP-F, respectively. The molecular weight of LP-F declined...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2020.01.059

    authors： Huang F,Hong R,Yi Y,Bai Y,Dong L,Jia X,Zhang R,Wang G,Zhang M,Wu J

    更新日期：2020-03-15 00:00:00

  • Characterization of α-D-glucan produced by a probiont Enterococcus hirae KX577639 from feces of south Indian Irula tribals.

    abstract：:Exopolysaccharide (EPS) producing probiotic strain Enterococcus hirae KX577639 were isolated from the feces of South Indian Irula tribes. EPS yield was 18.57 g/L (dry weight) at 48 h in 2% sucrose supplemented MRS medium. TLC and GC-MS analysis confirmed the presence of predominant glucose monomer indicating the homop...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2018.07.015

    authors： Jayamanohar J,Devi PB,Kavitake D,Rajendran S,Priyadarisini VB,Shetty PH

    更新日期：2018-10-15 00:00:00

  • Effects of the ultra-high pressure on structure and α-glucosidase inhibition of polysaccharide from Astragalus.

    abstract：:A novel homogeneous polysaccharide fraction (APS) was extracted from Astragalus by hot water and purified by Sephadex G-100 and G-75 column. Its molecular weight was 693kDa. APS and APS with ultra-high pressure treatment exhibited significant inhibitory abilities on a-glucosidase, inhibition rate from high to low in o...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2016.03.024

    authors： Zhu ZY,Luo Y,Dong GL,Ren YY,Chen LJ,Guo MZ,Wang XT,Yang XY,Zhang Y

    更新日期：2016-06-01 00:00:00

  • Effects of trehalose and sorbitol on the activity and structure of Pseudomonas cepacia lipase: spectroscopic insight.

    abstract：:The stability of enzymes with no reduction in their catalytic activity still remains a critical issue in industrial applications. Naturally occurring osmolytes are commonly used as protein stabilizers. In this study we have investigated the effects of sorbitol and trehalose on the structural stability and activity of ...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2011.06.025

    authors： Azizi A,Ranjbar B,Khajeh K,Ghodselahi T,Hoornam S,Mobasheri H,Ganjalikhany MR

    更新日期：2011-11-01 00:00:00

  • Characterization and antibacterial action mode of bacteriocin BMP32r and its application as antimicrobial agent for the therapy of multidrug-resistant bacterial infection.

    abstract：:Multidrug-resistant (MDR) bacterial infection still poses a serious threat to public health, therefore, effective and safe antimicrobial agents are urgently needed. In this study, recombinant bacteriocin BMP32 (BMP32r) prepared by the Escherichia coli expression system had a broad-spectrum antibacterial activity even ...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2020.07.192

    authors： Qiao Z,Sun H,Zhou Q,Yi L,Wang X,Shan Y,Yi Y,Liu B,Zhou Y,Lü X

    更新日期：2020-12-01 00:00:00

  • Dacarbazine as a minor groove binder of DNA: Spectroscopic, biophysical and molecular docking studies.

    abstract：:A detailed investigation on the mode of action and binding mechanism of a potent anticancer drug, 5-(3,3-dimethyl-1-triazeno)-imidazole-4-carboxamide (DCR) with calf thymus DNA (ctDNA) was carried out. UV-vis and fluorescence spectrophotometry suggested the formation of complex between DCR and ctDNA. The binding const...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2015.04.055

    authors： Ahmad I,Ahmad M

    更新日期：2015-08-01 00:00:00

  • Folding thermodynamics of c-Myb DNA-binding domain in correlation with its α-helical contents.

    abstract：:The conformational and thermal stabilities of the minimum functional unit for c-Myb DNA-binding domain, tandem repeat 2 and 3 (R2R3), were analyzed under different pH conditions, ranging from 4.0 to 7.5, using circular dichroism and differential scanning calorimetry. Secondary structure analysis showed that the soluti...

    journal_title：International journal of biological macromolecules

    pub_type： 杂志文章

    doi：10.1016/j.ijbiomac.2015.10.035

    authors： Inaba S,Fukada H,Oda M

    更新日期：2016-01-01 00:00:00