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Zungu B, Kamdem Paumo H, Gaorongwe JL, Tsuene GN, Ruzvidzo O, Katata-Seru L. Zn nutrients-loaded chitosan nanocomposites and their efficacy as nanopriming agents for maize ( Zea mays) seeds. Front Chem 2023; 11:1243884. [PMID: 37638104 PMCID: PMC10457009 DOI: 10.3389/fchem.2023.1243884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 07/26/2023] [Indexed: 08/29/2023] Open
Abstract
Recent breakthroughs in agro-inputs research have led to the development of nanomaterials that can promote precision agriculture and better environmental security. The agricultural sector is increasingly facing the negative impacts of changing climates due to various stress conditions. To curb this scenario, economical and low-risk practices such as decreasing fertilizer inputs and seed priming have been promoted. In the current study, the H. odoratissimum aqueous extract was used to nucleate the Zn ionic species and grow the zinc oxide nanoparticles (ZnO NPs). The developed nanocomposites and their ionic zinc precursor were then integrated into tripolyphosphate (TPP)-crosslinked chitosan (CS/TPP) nanostructures by ionic gelation. Advanced physicochemical characterization techniques (SEM, EDS, TEM, DLS, FTIR, TGA, and XPS) were exploited to report the morphology, hydrodynamic size, surface charge, and structural organization of the developed nanomaterials. These revealed positively charged particles with hydrodynamic size in the 149-257 nm range. The NPs were used as priming agents for Zea mays seeds. At 0.04%, the ZnO-loaded CS/TPP NPs achieved higher root and shoot elongation in 10-day old seedlings compared to other treatments. The pristine CS/TPP NPs, Zn(II)-laden CS/TPP NPs, and ZnO-loaded CS/TPP NPs at 0.01% significantly promoted the early seedling development of seeds under salt stress. This represents the first report showing ZnO integrated chitosan nanocomposites as an auspicious nanopriming agent for stimulating the seed germination of maize. The study envisages offering perspectives on utilizing green nanotechnology to improve the early seedling development of maize. Furthermore, it has the potential to contribute towards UN SDG 2, thus addressing the threats to global food insecurity and doubling agricultural productivity by 2030.
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Affiliation(s)
- Bongiwe Zungu
- Department of Chemistry, Material Science Innovation and Modelling (MaSIM) Research Focus Area, North-West University, Mmabatho, South Africa
| | - Hugues Kamdem Paumo
- Department of Chemistry, Material Science Innovation and Modelling (MaSIM) Research Focus Area, North-West University, Mmabatho, South Africa
| | - Joseph Lesibe Gaorongwe
- Department of Botany, School of Biological Sciences, North-West University, Potchefstroom, South Africa
| | - Gaborone Neo Tsuene
- Department of Botany, School of Biological Sciences, North-West University, Potchefstroom, South Africa
| | - Oziniel Ruzvidzo
- Department of Botany, School of Biological Sciences, North-West University, Potchefstroom, South Africa
| | - Lebogang Katata-Seru
- Department of Chemistry, Material Science Innovation and Modelling (MaSIM) Research Focus Area, North-West University, Mmabatho, South Africa
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Elghobashy SA, Abeer Mohammed AB, Tayel AA, Alshubaily FA, Abdella A. Thyme/garlic essential oils loaded chitosan–alginate nanocomposite: Characterization and antibacterial activities. E-POLYMERS 2022. [DOI: 10.1515/epoly-2022-0090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Abstract
For controlling pathogenic bacteria using nanopolymer composites with essential oils, the formulation of chitosan/alginate nanocomposites (CS/ALG NCs) loaded with thyme oil, garlic oil, and thyme/garlic oil was investigated. Oils were encapsulated in CS/ALG NCs through oil-in-water emulsification and ionic gelation. The CS/ALG NCs loaded with oils of garlic, thyme, and garlic–thyme complex had mean diameters of 143.8, 173.9, and 203.4 nm, respectively. They had spherical, smooth surfaces, and zeta potential of +28.4 mV for thyme–garlic-loaded CS/ALG NCs. The bactericidal efficacy of loaded NCs with mixed oils outperformed individual loaded oils and ampicillin, against foodborne pathogens. Staphylococcus aureus was the most susceptible (with 28.7 mm inhibition zone and 12.5 µg·mL−1 bactericidal concentration), whereas Escherichia coli was the most resistant (17.5 µg·mL−1 bactericidal concentration). Scanning electron microscopy images of bacteria treated with NCs revealed strong disruptive effects on S. aureus and Aeromonas hydrophila cells; treated cells were totally exploded or lysed within 8 h. These environmentally friendly nanosystems might be a viable alternative to synthetic preservatives and be of interest in terms of health and food safety.
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Affiliation(s)
- Shrifa A. Elghobashy
- Department of Fish Processing and Biotechnology, Faculty of Aquatic and Fisheries Sciences, Kafrelsheikh University , Kafrelsheikh 33516 , Egypt
| | - A. B. Abeer Mohammed
- Department of Microbial Biotechnology, Genetic Engineering and Biotechnology Research Institute, University of Sadat City (USC) , El-Sadat City 32897 , Egypt
| | - Ahmed A. Tayel
- Department of Fish Processing and Biotechnology, Faculty of Aquatic and Fisheries Sciences, Kafrelsheikh University , Kafrelsheikh 33516 , Egypt
| | - Fawzia A. Alshubaily
- Biochemistry Department, Faculty of Science, King Abdulaziz University , Jeddah , Saudi Arabia
| | - Asmaa Abdella
- Department of Industrial Biotechnology, Genetic Engineering and Biotechnology Research Institute, University of Sadat City (USC) , El-Sadat City 32897 , Egypt
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Lilhare S, Mathew SB, Singh AK, Carabineiro SAC. Aloe Vera Functionalized Magnetic Nanoparticles Entrapped Ca Alginate Beads as Novel Adsorbents for Cu(II) Removal from Aqueous Solutions. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2947. [PMID: 36079984 PMCID: PMC9457615 DOI: 10.3390/nano12172947] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/12/2022] [Accepted: 08/15/2022] [Indexed: 06/15/2023]
Abstract
CABs (Ca alginate beads), AVCABs (Aloe vera Ca alginate beads), and AVMNCABs (Aloe-vera functionalized magnetic nanoparticles entrapped Ca alginate beads) were developed as adsorbents for the removal of Cu(II) from aqueous solutions. The materials were characterized using Fourier-transform infrared (FTIR) spectroscopy, high-resolution scanning electron microscopic (HR-SEM) analysis, X-ray diffraction (XRD), energy-dispersive X-ray (EDX) spectroscopy, and a vibrating-sample magnetometer (VSM). The effect of several parameters, such as pH, time, temperature, adsorbent dose, etc., were investigated. The adsorption isotherm of Cu(II) was adjusted best to the Langmuir model. The maximum adsorption capacities were 111.11 mg/g, 41.66 mg/g, and 15.38 mg/g for AVMNCABs, AVCABs, and CABs, respectively. The study of the adsorption kinetics for Cu(II) ions on beads followed a pseudo-second-order kinetic model, with a very good correlation in all cases. The adsorption studies used a spectrophotometric method, dealing with the reaction of Cu(II) with KSCN and variamine blue.
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Affiliation(s)
- Surbhi Lilhare
- Department of Chemistry, Govt. V. Y. T. PG Autonomous College, Durg, Chhattishgarh 491001, India
| | - Sunitha B. Mathew
- Department of Chemistry, Govt. V. Y. T. PG Autonomous College, Durg, Chhattishgarh 491001, India
| | - Ajaya Kumar Singh
- Department of Chemistry, Govt. V. Y. T. PG Autonomous College, Durg, Chhattishgarh 491001, India
- School of Chemistry & Physics, Westville Campus, University of KwaZulu-Natal, Durban 4000, South Africa
| | - Sónia A. C. Carabineiro
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
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Abdalla TH, Nasr AS, Bassioni G, Harding DR, Kandile NG. Fabrication of sustainable hydrogels-based chitosan Schiff base and their potential applications. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103511] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Yu S, Hao S, Sun B, Zhao D, Yan X, Jin Z, Zhao K. Quaternized Chitosan Nanoparticles in Vaccine Applications. Curr Med Chem 2020; 27:4932-4944. [PMID: 30827229 DOI: 10.2174/0929867326666190227192527] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 02/13/2019] [Accepted: 02/15/2019] [Indexed: 02/06/2023]
Abstract
Different natural and synthetic biodegradable polymers have been used in vaccine formulations as adjuvant and delivery system but have faced various limitations. Chitosan is a new delivery system with the potential to improve development of nano vaccines and drugs. However, chitosan is only soluble in acidic solutions of low concentration inorganic acids such as dilute acetic acid and dilute hydrochloric acid and in pure organic solvents, which greatly limits its application. Chemical modification of chitosan is an important way to improve its weak solubility. Quaternized chitosan not only retains the excellent properties of chitosan, but also improves its water solubility for a wider application. Recently, quaternized chitosan nanoparticles have been widely used in biomedical field. This review focuses on some quaternized chitosan nanoparticles, and points out the advantages and research direction of quaternized chitosan nanoparticles. As shown by the applications of quaternized chitosan nanoparticles as adjuvant and delivery carrier in vaccines, quaternized chitosan nanoparticles have promising potential in application for the development of nano vaccines in the future.
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Affiliation(s)
- Shuang Yu
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin 150080, China
| | - Shengnan Hao
- Animal Husbandry Bureau of Hekou District, Dongying City, Shandong 257200, China
| | - Beini Sun
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin 150080, China
| | - Dongying Zhao
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin 150080, China
| | - Xingye Yan
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin 150080, China
| | - Zheng Jin
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion, College of Chemistry and Material Sciences, Heilongjiang University, Harbin 150080, China
| | - Kai Zhao
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin 150080, China
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Al-Nemrawi NK, Alsharif SSM, Alzoubi KH, Alkhatib RQ. Preparation and characterization of insulin chitosan-nanoparticles loaded in buccal films. Pharm Dev Technol 2019; 24:967-974. [PMID: 31092092 DOI: 10.1080/10837450.2019.1619183] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Chitosan nanoparticles loaded with insulin (IN-CS-NPs) were prepared using ionic gelation method using sodium tripolyphophate as a crosslinker. Later the nanoparticles (NPs) were dispersed in buccal films. The physicochemical properties and the morphology of the nanoparticles were characterized. The stability and release of insulin from the NPs were investigated. Buccal films were prepared separately and their properties such as the weight, thickness, pH, and mucoadhesiveness were investigated. The best film was used to disperse IN-CS-NPs and the loaded film was characterized. The nanoparticles size, polydispersity index, zeta potential, entrapment efficacy, and the loading capacity were 325.07 ± 1.32 nm, 0.38 ± 0.03 and 8.41 ± 0.80 mV, and 73.27 and 18.03%, respectively. The weight and thickness of the loaded film with IN-CS-NPs were 23.0 ± 3.0 mg and 0.32 ± 0.04 mm, respectively and the mucoadhesive force was 2.3 ± 0.2 N. The drug was stable in the NPs and in the films for three months, and its release was controlled by the film and the nanoparticles. Finally, the films loaded with IN-CS-NPs were studied in vivo and were compared to the commercially available insulin. The films prepared in this work were found to decrease glucose level significantly in diabetic rats.
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Affiliation(s)
- Nusaiba K Al-Nemrawi
- a Department of Pharmaceutical Technology, Faculty of Pharmacy , Jordan University of Science and Technology , Irbid , Jordan
| | - Sara S M Alsharif
- b Department of Applied Biological Sciences, Faculty of Scienceand Art , Jordan University of Science and Technology , Irbid , Jordan
| | - Karem H Alzoubi
- c Department of Clinical Pharmacy, Facultyof Pharmacy , Jordan University of Science and Technology , Irbid , Jordan
| | - Rami Q Alkhatib
- b Department of Applied Biological Sciences, Faculty of Scienceand Art , Jordan University of Science and Technology , Irbid , Jordan
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Xu G, Zhu Y, Wang X, Wang S, Cheng T, Ping R, Cao J, Lv K. Novel chitosan and Laponite based nanocomposite for fast removal of Cd(II), methylene blue and Congo red from aqueous solution. E-POLYMERS 2019. [DOI: 10.1515/epoly-2019-0025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractA series of chitosan and Laponite based nano-composite adsorbents, which showed an excellent performance for fast and efficient removal of Cd(II), methylene blue (MB) and Congo red (CR) from aqueous solution, were prepared. In the adsorbent, with the increase of Laponite component, the surface area increased from 44.69 m2 g-1 to 64.58 m2 g-1. As a result, the adsorption rates were enhanced by increasing Laponite component. The adsorption capacities for Cd(II) and MB increased with increasing Laponite component due the cationic characteristic of two pollutants, and the opposite result was found for the removal of CR. The impacts of some factors, e.g. solution pH, temperature, pollutant concentration and salt, on the adsorption capacity were investigated. Additionally, this adsorbent could be effectively regenerated by dilute HCl solution after the adsorption of Cd(II), and the mixture of methanol and acetic acid was a suitable eluent after the adsorption of two dyes.
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Affiliation(s)
- Guobin Xu
- College of Chemical Engineering, China University of Petroleum (East China), Qingdao266580, China
| | - Yuejun Zhu
- State Key Lab of Offshore Oil Exploitation, Beijing100028, China
- CNOOC Research Institute Co. Ltd, Beijing100028, China
| | - Xiujun Wang
- State Key Lab of Offshore Oil Exploitation, Beijing100028, China
- CNOOC Research Institute Co. Ltd, Beijing100028, China
| | - Shanshan Wang
- State Key Lab of Offshore Oil Exploitation, Beijing100028, China
- CNOOC Research Institute Co. Ltd, Beijing100028, China
| | - Tianxiang Cheng
- Shandong Key Laboratory of Oilfield Chemistry, School of Petroleum Engineering, China University of Petroleum (East China), Qingdao266580, China
| | - Rang Ping
- College of Chemical Engineering, China University of Petroleum (East China), Qingdao266580, China
| | - Jie Cao
- Shandong Key Laboratory of Oilfield Chemistry, School of Petroleum Engineering, China University of Petroleum (East China), Qingdao266580, China
| | - Kaihe Lv
- Shandong Key Laboratory of Oilfield Chemistry, School of Petroleum Engineering, China University of Petroleum (East China), Qingdao266580, China
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