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Sadeghi-Ghadikolaei M, Vasheghani-Farahani E, Bagheri F, Moghaddam AK, Mellati A, Karimizade A. Fabrication of 3D chitosan/polyvinyl alcohol/brushite nanofibrous scaffold for bone tissue engineering by electrospinning using a novel falling film collector. Int J Biol Macromol 2024; 272:132874. [PMID: 38838901 DOI: 10.1016/j.ijbiomac.2024.132874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 05/06/2024] [Accepted: 06/01/2024] [Indexed: 06/07/2024]
Abstract
Despite its advantages, electrospinning has limited effectiveness in 3D scaffolding due to the high density of fibers it produces. In this research, a novel electrospinning collector was developed to overcome this constraint. An aqueous suspension containing chitosan/polyvinyl alcohol nanofibers was prepared employing a unique falling film collector. Suspension molding by freeze-drying resulted in a 3D nanofibrous scaffold (3D-NF). The mineralized scaffold was obtained by brushite deposition on 3D-NF using wet chemical mineralization by new sodium tripolyphosphate and calcium chloride dihydrate precursors. The 3D-NF was optimized and compared with the conventional electrospun 2D nanofibrous scaffold (2D-NF) and the 3D freeze-dried scaffold (3D-FD). Both minor fibrous and major freeze-dried pore shapes were present in 3D-NFs with sizes of 16.11-24.32 μm and 97.64-234.41 μm, respectively. The scaffolds' porosity increased by 53 % to 73 % compared to 2D-NFs. Besides thermal stability, mineralization improved the 3D-NF's ultimate strength and elastic modulus by 2.2 and 4.7 times, respectively. In vitro cell studies using rat bone marrow mesenchymal cells confirmed cell infiltration up to 290 μm and scaffold biocompatibility. The 3D-NFs given nanofibers and brushite inclusion exhibited considerable osteoinductivity. Therefore, falling film collectors can potentially be applied to prepare 3D-NFs from electrospinning without post-processing.
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Affiliation(s)
- Mohsen Sadeghi-Ghadikolaei
- Biomedical Engineering Division, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
| | | | - Fatemeh Bagheri
- Biotechnology Department, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Alireza Khorrami Moghaddam
- Radiology and Medical Physics Department, Faculty of Paramedical Science, Mazandaran University of Medical Sciences, Sari, Iran
| | - Amir Mellati
- Tissue Engineering and Regenerative Medicine Department, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Ayoob Karimizade
- Tissue Engineering and Regenerative Medicine Department, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
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2
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Abo-Salem HM, Ali EA, Abdelmegeed H, El Souda SSM, Abdel-Aziz MS, Ahmed KM, Fawzy NM. Chitosan nanoparticles of new chromone-based sulfonamide derivatives as effective anti-microbial matrix for wound healing acceleration. Int J Biol Macromol 2024; 272:132631. [PMID: 38810852 DOI: 10.1016/j.ijbiomac.2024.132631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 05/02/2024] [Accepted: 05/22/2024] [Indexed: 05/31/2024]
Abstract
A new series of chromone and furochromone-based sulfonamide Schiff's base derivatives 3-12 were synthesized and evaluated for their antimicrobial activity against S. aureus, E. coli, C. albicans, and A. niger using agar diffusion method. Compound 3a demonstrated potent antimicrobial activities with MIC values of 9.76 and 19.53 μg/mL against S. aureus, E. coli and C. albicans, which is 2-fold and 4-fold more potent than neomycin (MIC = 19.53, 39.06 μg/mL respectively). To improve the effectiveness of 3a, it was encapsulated into chitosan nanoparticles (CS-3aNPs). The CS-3aNPs size was 32.01 nm, as observed by transmission electron microscope (TEM) images and the zeta potential value was 14.1 ± 3.07 mV. Encapsulation efficiency (EE) and loading capacity (LC) were 91.5 % and 1.6 %, respectively as indicated by spectral analysis. The CS-3aNPs extremely inhibited bacterial growth utilizing the colony-forming units (CFU). The ability of CS-3aNPs to protect skin wounds was evaluated in vivo. CS-3aNPs showed complete wound re-epithelialization, hyperplasia of the epidermis, well-organized granulation tissue formation, and reduced signs of wound infection, as seen through histological assessment which showed minimal inflammatory cells in comparison with untreated wound. Overall, these findings suggest that CS-3aNPs has a positive impact on protecting skin wounds from infection due to their antimicrobial activity.
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Affiliation(s)
- Heba M Abo-Salem
- Chemistry of Natural Compounds Department, National Research Centre, 12622 Dokki, Giza, Egypt.
| | - Eman AboBakr Ali
- Polymers and Pigments Department, National Research Centre, 12622 Dokki, Giza, Egypt
| | - Heba Abdelmegeed
- Chemistry of Natural Compounds Department, National Research Centre, 12622 Dokki, Giza, Egypt
| | - Sahar S M El Souda
- Chemistry of Natural Compounds Department, National Research Centre, 12622 Dokki, Giza, Egypt
| | - Mohamed S Abdel-Aziz
- Microbial Chemistry Department, Biotechnology Research Institute, National Research Centre, 12622 Dokki, Giza, Egypt
| | - Khadiga M Ahmed
- Chemistry of Natural Compounds Department, National Research Centre, 12622 Dokki, Giza, Egypt
| | - Nagwa M Fawzy
- Chemistry of Natural and Microbial Products Department, National Research Center, 12622 Dokki, Giza, Egypt.
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3
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Basaran R, Ning X, Budhadev D, Hondow N, Guo Y, Zhou D. Probing the pH-dependency of DC-SIGN/R multivalent lectin-glycan interactions using polyvalent glycan-gold nanoparticles. NANOSCALE ADVANCES 2024; 6:2198-2208. [PMID: 38633047 PMCID: PMC11019501 DOI: 10.1039/d3na01013a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 03/04/2024] [Indexed: 04/19/2024]
Abstract
The dendritic cell tetrameric lectin, DC-SIGN, and its closely related endothelial cell lectin, DC-SIGNR (collectively abbreviated as DC-SIGN/R) play a key role in the binding and transmission of deadly viruses, including Ebola, HIV, HCV, and SARS-CoV-2. Their virus binding/release processes involve a gradually acidifying environment following the natural intracellular trafficking pathways. Therefore, understanding DC-SIGN/R's pH-dependent binding properties with glycan ligands is of great importance. We have recently developed densely glycosylated gold nanoparticles (glycan-GNPs) as a powerful new tool for probing DC-SIGN/R multivalent lectin-glycan interaction (MLGI) mechanisms. They can provide not only quantitative MLGI affinities but also important structural information, such as binding site orientation and binding modes. Herein, we further employ the glycan-GNP probes to investigate the pH dependency of DC-SIGN/R MLGI properties. We find that DC-SIGN/R MLGIs exhibit distinct pH dependence over the normal physiological (7.4) to lysosomal (∼4.6) pH range. DC-SIGN binds glycan-GNPs strongly and stably from pH 7.4 to ∼5.8, but the binding is weakened significantly as pH decreases to ≤5.4 and may be fully dissociated at pH 4.6. This behaviour is fully consistent with DC-SIGN's role as an endocytic recycling receptor. In contrast, DC-SIGNR's affinity with glycan-GNPs is enhanced with the decreasing pH from 7.4 to 5.4, peaking at pH 5.4, and then reduced as pH is further lowered. Interestingly, both DC-SIGN/R binding with glycan-GNPs are found to be partially reversible in a pH-dependent manner.
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Affiliation(s)
- Rahman Basaran
- School of Chemistry, Astbury Centre for Structural Molecular Biology, University of Leeds Leeds LS2 9JT UK
| | - Xinyu Ning
- School of Chemistry, Astbury Centre for Structural Molecular Biology, University of Leeds Leeds LS2 9JT UK
| | - Darshita Budhadev
- School of Chemistry, Astbury Centre for Structural Molecular Biology, University of Leeds Leeds LS2 9JT UK
| | - Nicole Hondow
- School of Chemical and Process Engineering, University of Leeds Leeds LS2 9JT UK
| | - Yuan Guo
- School of Food Science and Nutrition, Astbury Centre for Structural Molecular Biology, University of Leeds Leeds LS2 9JT UK
| | - Dejian Zhou
- School of Chemistry, Astbury Centre for Structural Molecular Biology, University of Leeds Leeds LS2 9JT UK
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Jiang X, Yu Y, Ma S, Li L, Yu M, Han M, Yuan Z, Zhang J. Chitosan nanoparticles loaded with Eucommia ulmoides seed essential oil: Preparation, characterization, antioxidant and antibacterial properties. Int J Biol Macromol 2024; 257:128820. [PMID: 38103671 DOI: 10.1016/j.ijbiomac.2023.128820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 12/01/2023] [Accepted: 12/13/2023] [Indexed: 12/19/2023]
Abstract
Eucommia ulmoides seed essential oil (EUSO) is a natural plant oil rich in various nutrients, which has been widely used due to its unique medicinal effects. However, it is prone to oxidation and rancidity under many adverse environmental influences. Nanoencapsulation technology can protect and slow down the loss of its biological activity. In this study, chitosan nanoparticles (CSNPs) loaded with EUSO were prepared by emulsification and ionic gel technology. EUSO-CSNPs were characterized by Fourier transform infrared (FTIR) spectroscopy, Thermogravimetric analysis (TGA) and X-ray diffraction (XRD). The results confirmed the success of EUSO encapsulation and the encapsulation rate ranged from 36.95 % to 67.80 %. Nanoparticle size analyzer, Scanning electron microscope (SEM) and Transmission electron microscopy (TEM) showed that CSNPs were spherical particles with a range of 200.6-276.0 nm. The results of in vitro release study indicated that the release of EUSO was phased, and EUSO-CSNPS had certain sustained-release properties. Furthermore, EUSO-CSNPs had higher antioxidant and antibacterial abilities than pure EUSO and chitosan, which was verified through free radical scavenging experiments and bacteria biofilm experiments, respectively. This technology can enhance the medicinal value of EUSO in biomedical and other fields, and will provide support for in vivo research of EUSO-CSNPs in the future.
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Affiliation(s)
- Xin Jiang
- School of Life and Medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Yufan Yu
- School of Life and Medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Shuting Ma
- School of Life and Medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Lianshi Li
- School of Life and Medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Meiqi Yu
- School of Life and Medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Meijie Han
- School of Life and Medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Zuoqing Yuan
- School of Life and Medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Jianyong Zhang
- School of Life and Medicine, Shandong University of Technology, Zibo 255000, Shandong, China.
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Segneanu AE, Vlase G, Vlase T, Sicoe CA, Ciocalteu MV, Herea DD, Ghirlea OF, Grozescu I, Nanescu V. Wild-Grown Romanian Helleborus purpurascens Approach to Novel Chitosan Phyto-Nanocarriers-Metabolite Profile and Antioxidant Properties. PLANTS (BASEL, SWITZERLAND) 2023; 12:3479. [PMID: 37836219 PMCID: PMC10574898 DOI: 10.3390/plants12193479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 09/27/2023] [Accepted: 09/29/2023] [Indexed: 10/15/2023]
Abstract
The current nanomedicinal approach combines medicinal plants and nanotechnology to create new scaffolds with enhanced bioavailability, biodistribution and controlled release. In an innovative approach to herb encapsulation in nanosized chitosan matrices, wild-grown Romanian Helleborus purpurascens was used to prepare two new chitosan nanocarriers. The first carrier preparation involved the nanoencapsulation of hellebore in chitosan. The second carrier emerged from two distinct stages: hellebore-AgNPs phyto-carrier system succeeded by nanoencapsulation in chitosan. The morphostructural characteristics and thermal behavior of these newly prepared nanocarriers were examined using FT-IR, XRD, DLS, SEM, EDS and thermogravimetric analyses. In addition, the encapsulation yield, encapsulation efficiency and encapsulation contents were investigated. The antioxidant activity was estimated using four in vitro, noncompetitive methods: total phenolic assay; 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay; phosphomolybdate (i.e., total antioxidant capacity); and iron(III)-phenanthroline antioxidant assay. Moreover, this study reports the first low-molecular-weight metabolite profile of wild-grown Romanian Helleborus purpurascens Waldst. & Kit. A total of one hundred and five secondary metabolites were identified in the mass spectra (MS)-positive mode from fourteen secondary metabolite categories (alkaloids, butenolides, bufadienolides, phytoecdysteroids, amino acids and peptides, terpenoids, fatty acids, flavonoids, phenolic acids, sterols, glycosides, carbohydrates, nucleosides and miscellaneous). The collective results suggest the potential application is a promising new antioxidant vehicle candidate in tumor therapeutic strategy.
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Affiliation(s)
- Adina-Elena Segneanu
- Institute for Advanced Environmental Research-West, University of Timisoara (ICAM-WUT), Oituz Nr. 4, 300086 Timisoara, Romania; (G.V.); (T.V.)
| | - Gabriela Vlase
- Institute for Advanced Environmental Research-West, University of Timisoara (ICAM-WUT), Oituz Nr. 4, 300086 Timisoara, Romania; (G.V.); (T.V.)
- Research Centre for Thermal Analysis Environmental Problems, West University of Timisoara, Pestalozzi St. 16, 300115 Timisoara, Romania
| | - Titus Vlase
- Institute for Advanced Environmental Research-West, University of Timisoara (ICAM-WUT), Oituz Nr. 4, 300086 Timisoara, Romania; (G.V.); (T.V.)
- Research Centre for Thermal Analysis Environmental Problems, West University of Timisoara, Pestalozzi St. 16, 300115 Timisoara, Romania
| | - Crina Andreea Sicoe
- Faculty of Chemistry, Biology, Geography, West University of Timisoara, Pestalozzi St. 16, 300115 Timisoara, Romania;
| | - Maria Viorica Ciocalteu
- Faculty of Pharmacy, University of Medicine and Pharmacy Craiova, St. Petru Rareș 2, 200349 Craiova, Romania; (M.V.C.); (V.N.)
| | - Dumitru Daniel Herea
- National Institute of Research and Development for Technical Physics, 47 Mangeron Blvd., 700050 Iasi, Romania;
| | - Ovidiu-Florin Ghirlea
- Faculty of Medicine, “Victor Babes” University of Medicine and Pharmacy, square Eftimie Murgu No. 2, 300041 Timisoara, Romania;
| | - Ioan Grozescu
- CAICON Department, University Politehnica Timisoara, 300006 Timisoara, Romania;
| | - Valentin Nanescu
- Faculty of Pharmacy, University of Medicine and Pharmacy Craiova, St. Petru Rareș 2, 200349 Craiova, Romania; (M.V.C.); (V.N.)
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Upadhyay M, Hosur RV, Jha A, Bharti K, Mali PS, Jha AK, Mishra B, Kumar A. Myricetin encapsulated chitosan nanoformulation for management of type 2 diabetes: Preparation, optimization, characterization and in vivo activity. BIOMATERIALS ADVANCES 2023; 153:213542. [PMID: 37418933 DOI: 10.1016/j.bioadv.2023.213542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/27/2023] [Accepted: 06/29/2023] [Indexed: 07/09/2023]
Abstract
Type 2 diabetes mellitus (T2DM) is a serious and alarming disease attracting widespread attention. It is not a single metabolic disease; over time, it leads to serious disorders, namely, diabetic nephropathy, neuropathy, retinopathy and several cardiovascular, hepatocellular complications. The increase in T2DM cases in recent times has attracted significant attention. Currently, the medications available have side effects, and injectables are painful, causing trauma to the patients. Therefore, it is imperative to come up with oral delivery. In this background we report here a nanoformulation carrying natural small molecule Myricetin (MYR) encapsulated within Chitosan nanoparticles (CHT-NPs). MYR-CHT-NPs were prepared by ionic gelation method and evaluated using different characterization techniques. The in vitro release of MYR from CHT NPs in different physiological media showed pH dependence. in vivo pharmacodynamic study followed by oral administration in Albino Wistar rats showed better glycaemic control than existing drug. Further, the optimized nanoparticles also exhibited controlled increase in weight as compared to Metformin. The biochemistry profile of rats treated with nanoformulation reduced the levels of several pathological biomarkers, indicating additional benefits of MYR. Histopathological images exhibited no toxicity or changes in the major organs section in contrast to normal control, suggesting safe oral administration of the encapsulated MYR. Thus, we conclude that MYR-CHT-NPs represent an attractive delivery vehicle in improving the blood glucose level with controlled weight and have the potential to be safely administered orally for the management of T2DM.
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Affiliation(s)
- Mansi Upadhyay
- Department of Biosciences & Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, India.
| | - Ramakrishna V Hosur
- Department of Biosciences & Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Abhishek Jha
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU) Varanasi, 221005, India
| | - Kanchan Bharti
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU) Varanasi, 221005, India
| | - Pramod S Mali
- Department of Biosciences & Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Akash Kumar Jha
- Department of Biosciences & Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Brahmeshwar Mishra
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU) Varanasi, 221005, India
| | - Ashutosh Kumar
- Department of Biosciences & Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, India.
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