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Singh P, Jayaraman G. Inhibition of the Naja naja venom toxicity by polymeric nanoparticles loaded with Leucas aspera methanolic extract. Front Pharmacol 2024; 15:1385213. [PMID: 38783952 PMCID: PMC11112068 DOI: 10.3389/fphar.2024.1385213] [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: 02/12/2024] [Accepted: 04/22/2024] [Indexed: 05/25/2024] Open
Abstract
Background Snakebite is a neglected tropical disease that affects millions of people worldwide. Developing effective treatments can make a significant contribution to global health efforts and public health initiatives. To reduce mortality due to snakebite, there is an immediate need to explore novel and effective treatment methodologies. In that context, nanoparticle-based drug delivery is gaining a lot of attention. Hydrophilic nanoparticles are suitable for the delivery of therapeutic peptides, proteins, and antigens. Methods The present investigation is aimed at evaluating the anti-ophidian potential of the methanolic extract of the ethno-medicinal herb Leucas aspera (Willd.) loaded within chitosan nanoparticles (CNP-LA), against the Indian cobra (Naja naja) venom enzymes. For this purpose, nanoparticles were prepared using the ionic gelation method to enhance the efficacy of the extract. The physicochemical and structural features of nanoparticles were investigated using dynamic light scattering (DLS), Fourier-transform Infrared (FTIR), field emission scanning electron microscopy (FE-SEM), and X-ray diffraction (XRD) techniques. Results It was found that CNP-LA has an average size of 260 nm with a polydispersity index of 0.132 (PDI) and zeta potential of 34.7 mV, with an encapsulation efficiency of 92.46%. The in vitro release study was performed at pH 5.0 and 7.4. Furthermore, in vitro studies indicated that CNP-LA inhibited the phospholipase A2, hemolytic, and caseinolytic activities of Naja naja venom with the percentage inhibition of 92.5%, 83.9%, and 94.5%, respectively. Conclusion This is the first report on the application of herbal methanolic extract loaded within chitosan nanoparticles for neutralizing snake venom enzymes with increased efficiency.
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Affiliation(s)
| | - Gurunathan Jayaraman
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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El-Naggar NEA, Shiha AM, Mahrous H, Mohammed ABA. Green synthesis of chitosan nanoparticles, optimization, characterization and antibacterial efficacy against multi drug resistant biofilm-forming Acinetobacter baumannii. Sci Rep 2022; 12:19869. [PMID: 36400832 PMCID: PMC9674591 DOI: 10.1038/s41598-022-24303-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 11/14/2022] [Indexed: 11/19/2022] Open
Abstract
Chitosan nanoparticles (CNPs) are promising versatile cationic polymeric nanoparticles, which have received growing interest over last few decades. The biocompatibility, biodegradability, environmental safety and non-toxicity of the chitosan nanoparticles makes it preferred for a wide range of biological applications including agriculture, medical and pharmaceutical fields. In this study, CNPs were biosynthesized by aqueous extract of Eucalyptus globulus Labill fresh leaves as bio-reductant. Box-Behnken design in 29 experimental runs was used for optimization of different factors affecting the production of CNPs. The maximum yield of CNPs was 9.91 mg/mL at pH of 4.5, chitosan concentration of 1%, incubation time of 60 min and temperature of 50 °C. The crystallinity, particle size and morphology of the biosynthesized CNPs were characterized. The CNPs possess a positively charged surface of 31.1 mV. The SEM images of the CNPs confirms the formation of spherical form with smooth surface. The TEM images show CNPs were spherical in shape and their size range was between 6.92 and 10.10 nm. X-ray diffraction indicates the high degree of CNPs crystallinity. FTIR analysis revealed various functional groups of organic compounds including NH, NH2, C-H, C-O, C-N, O-H, C-C, C-OH and C-O-C. The thermogravimetric analysis results revealed that CNPs are thermally stable. The antibacterial activity of CNPs was determined against pathogenic multidrug-resistant bacteria, Acinetobacter baumannii. The diameters of the inhibition zones were 12, 16 and 30 mm using the concentrations of 12.5, 25 and 50 mg/mL; respectively. When compared to previous studies, the biosynthesized CNPs produced using an aqueous extract of fresh Eucalyptus globulus Labill leaves have the smallest particle sizes (with a size range between 6.92 and 10.10 nm). Consequently, it is a promising candidate for a diverse range of medical applications and pharmaceutical industries.
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Affiliation(s)
- Noura El-Ahmady El-Naggar
- Department of Bioprocess Development, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria, 21934, Egypt.
| | - Alaa M Shiha
- Microbial Biotechnology Department, Genetic Engineering and Biotechnology Research Institute, University of Sadat City, El Sadat City, Egypt
| | - Hoda Mahrous
- Industrial Biotechnology Department, Genetic Engineering and Biotechnology Research Institute, University of Sadat City, El Sadat City, Egypt
| | - A B Abeer Mohammed
- Microbial Biotechnology Department, Genetic Engineering and Biotechnology Research Institute, University of Sadat City, El Sadat City, Egypt
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Chuasaard T, Thammakan S, Semakul N, Konno T, Rujiwatra A. Structure and photoluminescence of two-dimensional lanthanide coordination polymers of mixed phthalate and azobenzene dicarboxylate. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Enhanced separation of base metal sulfides in flotation systems using Chitosan-grafted-Polyacrylamides. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119818] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Cheng Q, Huang M, Xiao A, Xu Z, Chen X, Gao Y, Yu G. Recyclable nitrogen-containing chitin-derived carbon microsphere as sorbent for neonicotinoid residues adsorption and analysis. Carbohydr Polym 2021; 260:117770. [PMID: 33712128 DOI: 10.1016/j.carbpol.2021.117770] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 01/02/2021] [Accepted: 02/03/2021] [Indexed: 01/19/2023]
Abstract
Chitin-derived three-dimensional nanomaterials has tremendous potential in pesticide residue analysis as an attractive green substitute for toxic solvents. The work presented herein focuses on constructing the environmentally friendly nitrogen-containing chitin-derived carbon microspheres (N-CCMP) for the efficient adsorption of neonicotinoid pesticides (NPs) including acetamiprid, clothianidin, imidacloprid and thiamethoxam. The N-CCMP displayed hierarchical porous structure, uniform size distribution, and excellent specific surface area of 680.8 m2 g-1. The N-CCMP with N-heterocyclic ring structure and surface oxygen functional groups exhibited good affinity to NPs, which was beneficial for the rapid adsorption. Then, the N-CCMP were utilized as sorbent in extraction of NP residues. Under the optimum conditions, the relative recoveries in water and juice sample were in the range of 85 %-116 % and 74 %-108 %, with relative standard deviations (RSDs) of 0.1 %∼5.2 % and 0.7 %∼5.2 %, respectively. The extraction performance of N-CCMP were still over 80 % after 5 times of reuse.
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Affiliation(s)
- Qiaoyun Cheng
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Bioengineering, Guangdong Academy of Science, Guangzhou, 510316, China; Research Center for Sugarcane Industry Engineering Technology of Light Industry of China, Guangzhou, 510316, China
| | - Minxing Huang
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Bioengineering, Guangdong Academy of Science, Guangzhou, 510316, China; Research Center for Sugarcane Industry Engineering Technology of Light Industry of China, Guangzhou, 510316, China
| | - Ailing Xiao
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Bioengineering, Guangdong Academy of Science, Guangzhou, 510316, China; Research Center for Sugarcane Industry Engineering Technology of Light Industry of China, Guangzhou, 510316, China
| | - Zhuoyan Xu
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Bioengineering, Guangdong Academy of Science, Guangzhou, 510316, China; Research Center for Sugarcane Industry Engineering Technology of Light Industry of China, Guangzhou, 510316, China
| | - Xiaochu Chen
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Bioengineering, Guangdong Academy of Science, Guangzhou, 510316, China; Research Center for Sugarcane Industry Engineering Technology of Light Industry of China, Guangzhou, 510316, China.
| | - Yufeng Gao
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Bioengineering, Guangdong Academy of Science, Guangzhou, 510316, China; Research Center for Sugarcane Industry Engineering Technology of Light Industry of China, Guangzhou, 510316, China
| | - Goubin Yu
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Bioengineering, Guangdong Academy of Science, Guangzhou, 510316, China; Research Center for Sugarcane Industry Engineering Technology of Light Industry of China, Guangzhou, 510316, China.
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Giraldo JD, Rivas BL. Direct ionization and solubility of chitosan in aqueous solutions with acetic acid. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-020-03172-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Uzun İ, Aksoy Ö, Topal G, Çelik Ö, Ocak YS. Evaluation of synthesized new chitin derivatives in Schottky diode constructions. POLYM-PLAST TECH MAT 2020. [DOI: 10.1080/25740881.2020.1725568] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- İlhan Uzun
- Department of Chemistry, Faculty of Education, Dicle University, Diyarbakir, Turkey
| | - Önder Aksoy
- Department of Chemistry, Faculty of Education, Dicle University, Diyarbakir, Turkey
| | - Giray Topal
- Department of Chemistry, Faculty of Education, Dicle University, Diyarbakir, Turkey
| | - Ömer Çelik
- Department of Physics, Faculty of Education, Dicle University, Diyarbakir, Turkey
| | - Yusuf Selim Ocak
- Department of Science Teaching, Faculty of Education, Dicle University, Diyarbakir, Turkey
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Önder Aksoy, Uzun İ, Topal G, Ocak YS, Çelik Ö, Batibay D. Schottky Diodes Based on the New Chitin Derivatives. POLYMER SCIENCE SERIES A 2019. [DOI: 10.1134/s0965545x19030027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Aksoy Ö, Uzun İ, Topal G, Ocak YS, Çelik Ö, Batibay D. Synthesis, characterization, and Schottky diode applications of low-cost new chitin derivatives. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-017-2151-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Chitin and chitosan from Brazilian Atlantic Coast: Isolation, characterization and antibacterial activity. Int J Biol Macromol 2015; 80:107-20. [PMID: 26093316 DOI: 10.1016/j.ijbiomac.2015.06.027] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 06/06/2015] [Accepted: 06/13/2015] [Indexed: 01/16/2023]
Abstract
Chitin and chitosan were obtained by chemical treatments of shrimp shells. Different particle sizes (50-1000 μm) of the raw material were used to study their effect on size distribution, demineralization, deproteinization and deacetylation of chitin and chitosan isolation process. The particle size in the range of 800-1000 μm was selected to isolate chitin, which was achieved by measuring nitrogen, protein, ash, and yield %. Hydrochloric acid (5%, v/v) was optimized in demineralization step to remove the minerals from the starting material. Aqueous solution of sodium hydroxide (5%, w/v) at 90 °C for (20 h) was used in deproteinization step to remove the protein. Pure chitin was consequently impregnated into high concentration of sodium hydroxide (50%) for 3.5 h at 90 °C to remove the acetyl groups in order to form high pure chitosan. The degree of deacetylation (DDA) of chitosan was controlled and evaluated by different analytical tools. The chemical structure of chitin and chitosan was confirmed by elemental analysis, ATR-FTIR, H/C NMR, XRD, SEM, UV-Vis spectroscopy, TGA, and acid-base titration. The isolated chitin and chitosan from shrimp shell showed excellent antibacterial activity against Gram (-ve) bacteria (Escherichia coli) comparing with commercial biopolymers.
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Enhancement of Cunninghamella elegans UCP/WFCC 0542 biomass and chitosan with amino acid supply. Molecules 2013; 18:10095-107. [PMID: 23973987 PMCID: PMC6270231 DOI: 10.3390/molecules180910095] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Revised: 08/08/2013] [Accepted: 08/12/2013] [Indexed: 11/17/2022] Open
Abstract
Studies were carried out with Cunninghamella elegans UCP/WFCC 0542 to evaluate the effects of an abundant supply of amino acids, asparagine and corn steep liquor associated with sucrose on the production of biomass and chitosan by submerged fermentation. The concentrations of the components of the culture medium which were determined by a 23 full factorial design evaluated the interactions and effects of the independent variables of the sucrose, asparagine and corn steep liquor in relation to carbon and nitrogen sources, on the production of chitosan regarding biomass. The best results were observed at the central point [asparagine 0.025%, sucrose 0.15% and 0.45% of corn steep liquor, ratio C:N=2:6], and produced maximum yields of 16.95 g/L biomass and 2.14 g/L chitosan, after 96 h of submerged fermentation. However, the lowest level of sucrose, asparagine and corn steep liquor produced a low amount of biomass (10.83 g/L) and chitosan (0.60g/L). The infrared spectrum absorption of the chitosan produced by C. elegans showed bands regarding OH-axial stretching between 3406 and 3432 cm−1, superimposed on the NH stretching band with axial deformation of the amide C=O group at about 1639 cm−1, NH angular deformation at approximately 1560 cm−1; axial deformation of amide-CN at around 1421 cm−1, symmetrical angular deformation in CH3 at 1379 cm−1, -CN axial deformation of amino groups from 1125 to 1250 cm−1 and polysaccharide structure bands in the range of between 890–1150 cm−1. The crystallinity index of chitosan was 60.92%, and its degree of deacetylation was 75.25%. A low percentage of a supply of sucrose and asparagine with corn steep liquor offered higher yields of biomass and chitosan production at low cost.
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