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Bucciarelli A, Selicato N, Coricciati C, Rainer A, Capodilupo AL, Gigli G, Moroni L, Polini A, Gervaso F. Modelling methacrylated chitosan hydrogel properties through an experimental design approach: from composition to material properties. J Mater Chem B 2024. [PMID: 39248047 DOI: 10.1039/d4tb00670d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/10/2024]
Abstract
Hydrogels of biopolymers are gradually substituting synthetic hydrogels in tissue engineering applications due to their properties. However, biopolymeric hydrogels are difficult to standardize because of the intrinsic variability of the material and the reversibility of physical crosslinking processes. In this work, we synthesized a photocrosslinkable derivative of chitosan (Cs), namely methacrylated chitosan (CsMA), in which the added methacrylic groups allow the formation of hydrogels through radical polymerization triggered by UV exposure. We then performed a systematic study to link the physical properties of the materials to its preparation parameters to standardize its preparation according to specific applications. We studied the properties of CsMA solutions and the derived hydrogels using a statistical method, namely, response surface method, which allowed us to build empirical models describing material properties in terms of several selected processing factors. In particular, we studied the viscosity of CsMA solutions as a function of CsMA concentration, temperature, and shear rate, while hydrogel compression modulus, morphology, degradation and solubilization were investigated as a function of CsMA concentration, photoinitiator concentration and UV exposure. CsMA solutions resulted in shear thinning and were thus suitable for extrusion-based 3D printing. The CsMA hydrogel was found to be highly tunable, with a stiffness in the 12-64 kPa range, and was stable over a long timeframe (up to 60 days). Finally, the possibility to engineer hydrogel stiffness through an empirical model allowed us to hypothesize a number of possible applications based on the mechanical properties of several biological tissues reported in the literature.
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Affiliation(s)
- Alessio Bucciarelli
- Laboratorio RAMSES, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy.
| | - Nora Selicato
- CNR NANOTEC - Institute of Nanotechnology, National Council of Research, University Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy.
| | - Chiara Coricciati
- CNR NANOTEC - Institute of Nanotechnology, National Council of Research, University Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy.
- Dipartimento di Matematica e Fisica E. de Giorgi, Università Del Salento, Campus Ecotekne, via Monteroni, 73100, Lecce, Italy.
| | - Alberto Rainer
- CNR NANOTEC - Institute of Nanotechnology, National Council of Research, University Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy.
- Department of Engineering, Università Campus Bio-Medico di Roma, via Alvaro del Portillo, 21, 00128, Rome, Italy.
| | - Agostina Lina Capodilupo
- CNR NANOTEC - Institute of Nanotechnology, National Council of Research, University Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy.
| | - Giuseppe Gigli
- CNR NANOTEC - Institute of Nanotechnology, National Council of Research, University Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy.
- Dipartimento di Matematica e Fisica E. de Giorgi, Università Del Salento, Campus Ecotekne, via Monteroni, 73100, Lecce, Italy.
| | - Lorenzo Moroni
- MERLN Institute for Technology-Inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, Universiteitssingel 40, 6229ER Maastricht, the Netherlands.
| | - Alessandro Polini
- CNR NANOTEC - Institute of Nanotechnology, National Council of Research, University Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy.
| | - Francesca Gervaso
- CNR NANOTEC - Institute of Nanotechnology, National Council of Research, University Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy.
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Ahmad K, Khan S, Chen P, Yang X, Fan C, Fan Y, Hao L, Tian Q, Tu C, Hou H. Enhancing mucoadhesion: Exploring rheological parameters and texture profile in starch solutions, with emphasis on micro-nanofiber influence. Int J Biol Macromol 2024; 275:133392. [PMID: 38917914 DOI: 10.1016/j.ijbiomac.2024.133392] [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: 01/20/2024] [Revised: 06/01/2024] [Accepted: 06/22/2024] [Indexed: 06/27/2024]
Abstract
This comprehensive analysis explores the rheological parameters and texture profile analysis (TPA) to effect starch solutions for mucoadhesion and assess the impact of micro-nanofibers (MNFs) on these parameters. The surface chemistry of all six samples was examined through the Fourier transform infrared (FTIR) technique. The spectrum of FTIR was recorded in the range of 500-4000 cm-1. The viscosity of different pHs (2-11) and temperatures (20-70 °C) of verious starches, potato, corn, and rice, decreased with the increasing of shear rate, exhibiting shear thinning behavior, which conformed to pseudoplastic fluid.The combination of chitosan and collagen MNFs significantly changed rheological properties, and the sample with the addtion of 1500 µL CC-MNF exhibited a greater viscosity of 59.8 mPa·s at a shear rate of 1.49 s-1. Potato starch emerged as a strong candidate for mucoadhesion due to its low hardness (4.62 ± 0.31 N), high adhesion (0.0322 ± 0.0053 mJ), cohesiveness (0.37 ± 0.03 Ratio), low chewiness (0.66 ± 0.12 mJ), and gumminess (1.69 ± 0.23 N). The inclusion of MNFs, especially collagen/chitosan MNFs showed the potential to further enhance adhesion.
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Affiliation(s)
- Khurshid Ahmad
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266404, PR China; Laboratory for Marine Drugs and Bioproducts, Qingdao Marine Science and Technology Center, Qingdao, Shandong Province 266237, PR China
| | - Suleman Khan
- Department of Physics, NFC Institute of Engineering and Technology, Multan 60000, Pakistan
| | - Peng Chen
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266404, PR China
| | - Xia Yang
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266404, PR China
| | - Chaozhong Fan
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266404, PR China
| | - Yan Fan
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266404, PR China
| | - Li Hao
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266404, PR China
| | - Qiaoji Tian
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266404, PR China
| | - Chaoxin Tu
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266404, PR China
| | - Hu Hou
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province 266404, PR China; Laboratory for Marine Drugs and Bioproducts, Qingdao Marine Science and Technology Center, Qingdao, Shandong Province 266237, PR China; Sanya Oceanographic Institution, Ocean University of China, Sanya, Hainan Province, 572024, PR China.
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Yildizbakan L, Iqbal N, Giannoudis PV, Jha A. Synthesis of Chitosan and Ferric-Ion (Fe 3+)-Doped Brushite Mineral Cancellous Bone Scaffolds. Biomimetics (Basel) 2024; 9:308. [PMID: 38921188 PMCID: PMC11202294 DOI: 10.3390/biomimetics9060308] [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: 04/08/2024] [Revised: 05/14/2024] [Accepted: 05/17/2024] [Indexed: 06/27/2024] Open
Abstract
Biodegradable scaffolds are needed to repair bone defects. To promote the resorption of scaffolds, a large surface area is required to encourage neo-osteogenesis. Herein, we describe the synthesis and freeze-drying methodologies of ferric-ion (Fe3+) doped Dicalcium Phosphate Dihydrate mineral (DCPD), also known as brushite, which has been known to favour the in situ condition for osteogenesis. In this investigation, the role of chitosan during the synthesis of DCPD was explored to enhance the antimicrobial, scaffold pore distribution, and mechanical properties post freeze-drying. During the synthesis of DCPD, the calcium nitrate solution was hydrolysed with a predetermined stoichiometric concentration of ammonium phosphate. During the hydrolysis reaction, 10 (mol)% iron (Fe3+) nitrate (Fe(NO3)3) was incorporated, and the DCPD minerals were precipitated (Fe3+-DCPD). Chitosan stir-mixed with Fe3+-DCPD minerals was freeze-dried to create scaffolds. The structural, microstructural, and mechanical properties of freeze-dried materials were characterized.
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Affiliation(s)
- Lemiha Yildizbakan
- School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK;
| | - Neelam Iqbal
- School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK;
| | - Peter V. Giannoudis
- Academic Department of Trauma and Orthopaedic Surgery, School of Medicine, University of Leeds, Leeds LS2 9JT, UK;
| | - Animesh Jha
- School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK;
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Ho HMK, Day RM, Craig DQM. An Investigation into the Effects of Processing Factors on the Properties and Scaling-Up Potential of Propranolol-Loaded Chitosan Nanogels. Pharmaceutics 2024; 16:662. [PMID: 38794324 PMCID: PMC11125439 DOI: 10.3390/pharmaceutics16050662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/05/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024] Open
Abstract
Chitosan-triphosphate (TPP) nanogels are widely studied drug delivery carrier systems, typically prepared via a simple mixing process. However, the effects of the processing factors on nanogel production have not been extensively explored, despite the importance of understanding and standardising such factors to allow upscaling and commercial usage. This study aims to systematically evaluate the effects of various fabrication and processing factors on the properties of nanogels using a Design of Experiment approach. Hydrodynamic size, polydispersity index (PDI), zeta potential, and encapsulation efficiency were determined as the dependent factors. The temperature, stirring rate, chitosan grade, crosslinker choice, and the interaction term between temperature and chitosan grade were found to have a significant effect on the particle size, whereas the effect of temperature and the addition rate of crosslinker on the PDI was also noteworthy. Moreover, the addition rate of the crosslinker and the volume of the reaction vessel were found to impact the encapsulation efficiency. The zeta potential of the nanogels was found to be governed by the chitosan grade. The optimal fabrication conditions for the development of medium molecular weight chitosan and TPP nanogels included the following: the addition rate for TPP solution was set at 2 mL/min, while the solution was then stirred at a temperature of 50 °C and a stirring speed of 600 rpm. The volume of the glass vial used was 28 mL, while the stirrer size was 20 mm. The second aim of the study was to evaluate the potential for scaling up the nanogels. Size and PDI were found to increase from 128 nm to 151 nm and from 0.232 to 0.267, respectively, when the volume of the reaction mixture was increased from 4 to 20 mL and other processing factors were kept unchanged. These results indicate that caution is required when scaling up as the nanogel properties may be significantly altered with an increasing production scale.
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Affiliation(s)
- Hei Ming Kenneth Ho
- School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
- Centre for Precision Healthcare, UCL Division of Medicine, University College London, 5 University Street, London WC1E 6JF, UK
| | - Richard M. Day
- Centre for Precision Healthcare, UCL Division of Medicine, University College London, 5 University Street, London WC1E 6JF, UK
| | - Duncan Q. M. Craig
- School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
- Faculty of Science, University of Bath, Claverton Down, Bath BA2 7AY, UK
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Allapitchai JF, Pitchai A, Ramasamy P. Isolation and Free Radical Scavenging Ability of Linear Polysaccharides From Cuttlebone of Sepia prashadi. Cureus 2024; 16:e60163. [PMID: 38868279 PMCID: PMC11167503 DOI: 10.7759/cureus.60163] [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: 04/08/2024] [Accepted: 05/11/2024] [Indexed: 06/14/2024] Open
Abstract
Background This study aimed to isolate linear polysaccharides from Sepia prashadi cuttlebone with the objective of evaluating their ability to scavenge free radicals. By providing new natural components for pharmaceutical and functional food uses, this research advances our understanding of the potential health benefits of polysaccharides originating from marine sources and their antioxidant properties. Objective The objective of the study is to isolate a linear polysaccharide chitosan from Sepia prashadi cuttlebone (produced by the partial deacetylation of chitin), characterize its structure using fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and X-ray diffraction (XRD), and explore the isolated polysaccharide's free radical scavenging potential. Material and methods Linear polysaccharide, chitosan was extracted chemically from Sepia prashadi from cuttlebone waste, by demineralization and deproteinization.Chemical characterization of chitosan was performed using Fourier transform infrared spectroscopy (FTIR) in the 400-4000 nm frequency range. The surface characteristics of chitosan, such as its texture, porosity, and roughness, are visible in scanning electron microscopy (SEM) images. X-ray diffraction (XRD) can be utilized to examine how chitosan interacts with other substances, such as medications or nanoparticles, by analyzing alterations in the diffraction pattern during complexation or formulation. Scavenging ability was demonstrated by 2,2-diphenyl-1-picrylhydrazyl (DPPH), superoxide radical, and chelating ability of ferrous ions assays. Results Chitosan is formed from chitin. The extraction yields of chitosan and chitin were 78% and 39%, respectively. High levels of superoxide radical scavenging activity (76.1%), DPPH radical scavenging activity (62.1%) and chelating activity (127.5% at 100 g/mL) were observed in cuttlebone chitosan. Sepia prashadi showed an increased antioxidant activity in chitosan. Conclusion The goal of this study was to determine the effectiveness of various extraction techniques for preserving the antioxidant activity of chitosan derived from Sepia prashadi cuttlebone waste. The maximum scavenging activity was demonstrated by both the chelating ability and antioxidant activity. Considering that this raw material is derived from renewable resources and produces highly valued chemicals, it is a profitable endeavor.
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Affiliation(s)
| | - Annathai Pitchai
- Prosthodontics and Implantology, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Pasiyappazham Ramasamy
- Prosthodontics and Implantology, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
- Polymer Research Laboratory, Centre for Marine and Aquatic Research, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
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Bagherian MS, Zargham P, Zarharan H, Bakhtiari M, Mortezaee Ghariyeh Ali N, Yousefi E, Es-Haghi A, Taghavizadeh Yazdi ME. Antimicrobial and antibiofilm properties of selenium-chitosan-loaded salicylic acid nanoparticles for the removal of emerging contaminants from bacterial pathogens. World J Microbiol Biotechnol 2024; 40:86. [PMID: 38319399 DOI: 10.1007/s11274-024-03917-z] [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: 11/16/2023] [Accepted: 02/01/2024] [Indexed: 02/07/2024]
Abstract
In this study salicylic acid loaded containing selenium nanoparticles was synthesized and called SA@CS-Se NPs. the chitosan was used as a natural stabilizer during the synthesis process. Fourier transforms infrared spectroscopy (FTIR), Powder X-ray diffraction (XRD), field emission electron microscopy (FESEM), and transmission electron microscopy (TEM) were used to describe the physicochemical characteristics of the SA@CS-Se NPs. The PXRD examination revealed that the grain size was around 31.9 nm. TEM and FESEM techniques showed the spherical shape of SA@CS-Se NPs. Additionally, the analysis of experiments showed that SA@CS-Se NPs have antibacterial properties against 4 ATCC bacteria; So that with concentrations of 75, 125, 150, and 100 µg/ml, it inhibited the biofilm formation of Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis, and Staphylococcus aureus respectively. Also, at the concentration of 300 µg/ml, it removed 22.76, 23.2, 10.62, and 18.08% biofilm caused by E. coli, P. aeruginosa, B. subtilis, and S. aureus respectively. The synthesized SA@CS-Se NPs may find an application to reduce the unsafe influence of pathogenic microbes and, hence, eliminate microbial contamination.
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Affiliation(s)
| | - Parisa Zargham
- Department of Biology, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Hoda Zarharan
- Department of Biology, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Maleknaz Bakhtiari
- Department of Biology, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | | | - Ehsan Yousefi
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Ali Es-Haghi
- Department of Biology, Mashhad Branch, Islamic Azad University, Mashhad, Iran.
| | - Mohammad Ehsan Taghavizadeh Yazdi
- Department of Pharmacology, Medicinal Plants Pharmacological Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
- Applied Biomedical Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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Mostafa NA, Hamdi SAH, Fol MF. Potential anthelmintic effect of chitosan on Syphacia muris infecting Wistar rats: biochemical, immunological, and histopathological studies. Sci Rep 2024; 14:2825. [PMID: 38310115 PMCID: PMC10838320 DOI: 10.1038/s41598-024-52309-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 01/17/2024] [Indexed: 02/05/2024] Open
Abstract
Natural products extracted from animal sources have many biological activities, such as chitosan, which is being researched for its medicinal or therapeutic potential. Syphacia muris is the most well-known intestinal nematode, infecting laboratory rats and influencing their immune systems. In this study, we looked at the anthelminthic activity of chitosan particles against S. muris infection using biochemical, immunological, and histopathological methods. Chitosan particles were characterized using Fourier-transform infrared spectroscopy (FTIR). Rats were separated into four groups, each consisting of seven individuals (n = 7). The first group was the control (non-infected), the second group was infected, and both groups received 0.5 ml of 1% glacial acetic acid orally. The third group was the infected group (treated), and the fourth group (normal) received 0.5 ml of 30 mg/kg/day chitosan dissolved in 1% glacial acetic acid for 14 days using gavage. Liver and kidney parameters, oxidative stress markers, serum levels of cytokines (IFN-γ, IL-5, IL-13, IL-33, and IL-10), as well as immunoglobulins (total IgE and IgG), were assessed. Histological examinations of host tissues (intestine, liver, kidney, and spleen) were also performed. Following chitosan treatment, a significant decrease in worm count (P < 0.05) was indicated; this was associated with an enhancement of biochemical and oxidative stress biomarkers, which were altered due to infection. Moreover, immunological analysis revealed a significant drop in INF-γ, IL-5, IL-13, and IL-33 levels and total immunoglobulins (IgE and IgG) as well as an improvement in rat tissues. Conclusively, this study showed the anthelminthic effect of chitosan against S. muris infection.
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Affiliation(s)
- Nesma A Mostafa
- Zoology Department, Faculty of Science, Cairo University, Giza, Egypt.
| | - Salwa A H Hamdi
- Zoology Department, Faculty of Science, Cairo University, Giza, Egypt
| | - Mona F Fol
- Zoology Department, Faculty of Science, Cairo University, Giza, Egypt
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Radeva L, Zaharieva MM, Spassova I, Kovacheva D, Pencheva-El Tibi I, Najdenski H, Yoncheva K. Biopolymeric Nanogel as a Drug Delivery System for Doxorubicin-Improved Drug Stability and Enhanced Antineoplastic Activity in Skin Cancer Cells. Pharmaceuticals (Basel) 2024; 17:186. [PMID: 38399401 PMCID: PMC10891966 DOI: 10.3390/ph17020186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 01/24/2024] [Accepted: 01/27/2024] [Indexed: 02/25/2024] Open
Abstract
In this study, doxorubicin was loaded in a chitosan-albumin nanogel with the aim of improving its stability and exploring the potential of the system in the treatment of skin cancer. Infrared spectroscopy and X-ray diffraction confirmed the encapsulation of the drug. Transmission electron microscopy revealed the spherical shape of the nanogel particles. The drug-loaded nanogel was characterized with a small diameter of 29 nm, narrow polydispersity (0.223) and positive zeta potential (+34 mV). The exposure of encapsulated doxorubicin to light (including UV irradiation and daylight) did not provoke any degradation, whereas the nonencapsulated drug was significantly degraded. In vitro studies on keratinocytes (HaCaT) and epidermoid squamous skin carcinoma cells (A-431) disclosed that the encapsulated doxorubicin was more cytotoxic on both cell lines than the pure drug was. More importantly, the cytotoxic concentration of encapsulated doxorubicin in carcinoma cells was approximately two times lower than that in keratinocytes, indicating that it would not affect them. Thus, the loading of doxorubicin into the developed chitosan-albumin nanogel definitely stabilized the drug against photodegradation and increased its antineoplastic effect on the skin cancer cell line.
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Affiliation(s)
- Lyubomira Radeva
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria
| | - Maya M Zaharieva
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Ivanka Spassova
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Daniela Kovacheva
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | | | - Hristo Najdenski
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Araújo JL, da Silva PB, Fonseca-Santos B, Báo SN, Chorilli M, de Souza PEN, Muehlmann LA, Azevedo RB. Photodynamic Therapy Directed to Melanoma Skin Cancer by Thermosensitive Hydrogel Containing Chlorophyll A. Pharmaceuticals (Basel) 2023; 16:1659. [PMID: 38139786 PMCID: PMC10747784 DOI: 10.3390/ph16121659] [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: 10/19/2023] [Revised: 11/16/2023] [Accepted: 11/21/2023] [Indexed: 12/24/2023] Open
Abstract
Melanoma, a severe form of skin cancer intricately linked to genetic and environmental factors, is predicted to reach 100,000 new cases worldwide by 2040, underscoring the need for effective and safe treatment options. In this study, we assessed the efficacy of a photosensitizer called Chlorophyll A (Chl-A) incorporated into hydrogels (HGs) made of chitosan (CS) and poloxamer 407 (P407) for Photodynamic Therapy (PDT) against the murine melanoma cell line B16-F10. The HG was evaluated through various tests, including rheological studies, SEM, and ATR-FTIR, along with cell viability assays. The CS- and P407-based HGs effectively released Chl-A and possessed the necessary properties for topical application. The photodynamic activity of the HG containing Chl-A was evaluated in vitro, demonstrating high therapeutic potential, with an IC50 of 25.99 µM-an appealing result when compared to studies in the literature reporting an IC50 of 173.8 µM for cisplatin, used as a positive control drug. The developed formulation of CS and P407-based HG, serving as a thermosensitive system for topical applications, successfully controlled the release of Chl-A. In vitro cell studies associated with PDT exhibited potential against the melanoma cell line.
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Affiliation(s)
- Joabe Lima Araújo
- Department of Genetics and Morphology, Institute of Biological Sciences, Darcy Ribeiro University Campus, University of Brasília, Brasília 70910-900, Brazil
| | - Patrícia Bento da Silva
- Department of Genetics and Morphology, Institute of Biological Sciences, Darcy Ribeiro University Campus, University of Brasília, Brasília 70910-900, Brazil
| | - Bruno Fonseca-Santos
- Department of Biotechnology, Health Sciences Institute, Federal University of Bahia, Salvador 40110-902, Brazil;
| | - Sônia Nair Báo
- Cellular Biology Department, Institute of Biological Sciences, Darcy Ribeiro University Campus, University of Brasília, Brasília 70910-900, Brazil;
| | - Marlus Chorilli
- School of Pharmaceutical Sciences, São Paulo State University, Araraquara 14800-903, Brazil;
| | | | | | - Ricardo Bentes Azevedo
- Department of Genetics and Morphology, Institute of Biological Sciences, Darcy Ribeiro University Campus, University of Brasília, Brasília 70910-900, Brazil
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10
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Liao HH, Livneh H, Huang HL, Hung JY, Lu MC, Guo HR, Tsai TY. Reduced risk of dementia in patients with type 2 diabetes mellitus using Chinese herbal medicine: A nested case-control study. World J Diabetes 2023; 14:1632-1642. [DOI: 10.4239/wjd.v14.i11.1632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/14/2023] [Accepted: 10/25/2023] [Indexed: 11/14/2023] Open
Abstract
BACKGROUND Dementia is a prevalent condition in type 2 diabetes mellitus (T2DM) patients. While Chinese herbal medicine (CHM) is often employed as complementary therapy for glycemic control, its effect in controlling likelihood of dementia has not yet been fully elucidated.
AIM To compare the risk of dementia between T2DM patients with and without CHM treatment.
METHODS We undertook a nested case-control study and obtained data on patients 20-70 years of age who received medical care for T2DM between 2001 and 2010 from the National Health Insurance Research database in Taiwan. Cases, defined as those with dementia that occurred at least one year after the diagnosis of T2DM, were randomly matched to controls without dementia from the study cohort at a 1:1 ratio. We applied conditional logistic regression to explore the associations between CHM treatment and dementia.
RESULTS A total of 11699 dementia cases were matched to 11699 non-dementia controls. We found that adding CHM to conventional care was related to a lower risk of dementia [adjusted odds ratio (OR) = 0.51], and high-intensity CHM treatment was associated with an adjusted OR of 0.22.
CONCLUSION This study shows that the cumulative CHM exposure was inversely associated with dementia risk in an exposure-response manner, implying that CHM treatment may be embraced as a disease management approach for diabetic patients to prevent dementia.
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Affiliation(s)
- Hou-Hsun Liao
- Department of Chinese Medicine, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi 62247, Taiwan
- Graduate Institute of Chinese Medicine, School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung 404333, Taiwan
- Department of Nursing, Tzu Chi University of Science and Technology, Hualien 62247, Taiwan
| | - Hanoch Livneh
- Department of Special and Counselor Education, Portland State University, Portland, OR 97207, United States
| | - Hua-Lung Huang
- Department of Rehabilitation, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi 62247, Taiwan
| | - Jui-Yu Hung
- Department of Nursing, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi 62247, Taiwan
| | - Ming-Chi Lu
- Division of Allergy, Immunology and Rheumatology, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi 62247, Taiwan
| | - How-Ran Guo
- Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan 70428, Taiwan
- Department of Occupational and Environmental Medicine, National Cheng Kung University Hospital, Tainan 70428, Taiwan
- Occupational Safety, Health, and Medicine Research Center, National Cheng Kung University, Tainan 70428, Taiwan
| | - Tzung-Yi Tsai
- Department of Nursing, Tzu Chi University of Science and Technology, Hualien 62247, Taiwan
- Department of Medical Research, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi 62247, Taiwan
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11
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González JA, Vallejo JR. The Use of Shells of Marine Molluscs in Spanish Ethnomedicine: A Historical Approach and Present and Future Perspectives. Pharmaceuticals (Basel) 2023; 16:1503. [PMID: 37895974 PMCID: PMC10609972 DOI: 10.3390/ph16101503] [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: 09/04/2023] [Revised: 10/14/2023] [Accepted: 10/20/2023] [Indexed: 10/29/2023] Open
Abstract
Since ancient times, the shells of marine molluscs have been used as a therapeutic and/or prophylactic resource. In Spain, they were part of practical guides for doctors or pharmacists until the 19th century. In general, seashells were prepared by dissolving in vinegar and were part of plasters or powders used as toothpaste, or to treat dyspepsia, heartburn and leprosy. Thus, the nacre or mother-of-pearl of various molluscs was regularly used in the Royal Colleges of Surgery and in hospitals during the times of the Cortes of Cadiz, as a medicine in galenic preparations based on powders. In contemporary Spanish ethnomedicine, seashells, with a high symbolic value, have been used as an amulet to prevent cracks in the breasts and promote their development during lactation, to avoid teething pain in young children, to eliminate stains on the face or to cure erysipelas. But, as in other countries, products derived from seashells have also been empirically applied. The two resources used traditionally have been the cuttlebone, the internal shell of cuttlefish and the nacre obtained from the external shells of some species. Cuttlebone, dried and pulverised, has been applied externally to cure corneal leukoma and in dental hygiene. In the case of nacre, a distinction must be made between chemical and physical remedies. Certain seashells, macerated in lemon juice, were used in coastal areas to remove spots on the face during postpartum. However, the most common practice in Spain mainland was to dissolve mother-of-pearl buttons in lemon juice (or vinegar). The substance thus obtained has been used to treat different dermatological conditions of the face (chloasma, acne), as well as to eliminate freckles. For the extraction of foreign bodies in the eyes, a very widespread traditional remedy has been to introduce small mother-of-pearl buttons under the lid. These popular remedies and practices are compared with those collected in classic works of medicine throughout history, and data on the pharmacological activity and pharmaceutical applications of the products used are provided. The use of cuttlebone powders is supported by different works on anti-inflammatory, immune-modulatory and/or wound healing properties. Nacre powder has been used in traditional medicines to treat palpitations, convulsions or epilepsy. As sedation and a tranquilisation agent, nacre is an interesting source for further drug development. Likewise, nacre is a biomaterial for orthopaedic and other tissue bioengineering applications. This article is a historical, cultural and anthropological view that can open new epistemological paths in marine-derived product research.
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Affiliation(s)
- José A. González
- Grupo de Investigación de Recursos Etnobiológicos del Duero-Douro (GRIRED), Facultad de Biología, Universidad de Salamanca, E-37071 Salamanca, Spain
| | - José Ramón Vallejo
- Departamento de Anatomía Patológica, Biología Celular, Histología, Historia de la Ciencia, Medicina Legal y Forense y Toxicología, Área de Historia de la Ciencia, Facultad de Medicina, Universidad de Cádiz, E-11003 Cádiz, Spain;
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12
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Roy L, Mondal S, Bhattacharyya N, Ghosh R, Banerjee A, Singh S, Chattopadhyay A, Ahmed SA, Jassas RS, Al-Rooqi MM, Moussa Z, Althagafi II, Bhattacharya D, Bhattacharya K, Mallick AK, Pal SK. A spectroscopy based prototype for the noninvasive detection of diabetes from human saliva using nanohybrids acting as nanozyme. Sci Rep 2023; 13:17306. [PMID: 37828100 PMCID: PMC10570348 DOI: 10.1038/s41598-023-44011-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 10/03/2023] [Indexed: 10/14/2023] Open
Abstract
The recent prediction of diabetes to be a global pandemic invites a detection strategy preferably non-invasive, and bloodless to manage the disease and the associated complications. Here, we have synthesized chitosan polymer functionalized, organic-inorganic bio-compatible nano-hybrids of Mn3O4 nanoparticles, and characterized it by utilizing several optical methodologies for the structural characterization which shows the Michaelis Menten (MM) kinetics for glucose and alpha-amylase protein (well-known diabetes biomarkers). We have also studied the potentiality for the detection of alpha-amylase in human salivary secretion which is reported to be strongly correlated with uncontrolled hyperglycemia. Finally, we have developed a prototype for the measurement of glucose (LOD of 0.38 mg/dL, LOQ of 1.15 mg/dL) and HbA1c (LOD of 0.15% and LOQ of 0.45%) utilizing the basic knowledge in the study for the detection of uncontrolled hyperglycemia at the point-of-care. With the limited number of clinical trials, we have explored the potential of our work in combating the diabetic pandemic across the globe in near future.
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Affiliation(s)
- Lopamudra Roy
- Department of Applied Optics and Photonics, University of Calcutta, JD-2, Sector-III, Salt Lake, Kolkata, West Bengal, 700 106, India
| | - Susmita Mondal
- Department of Chemical and Biological Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata, 700106, India
| | - Neha Bhattacharyya
- Department of Radio Physics and Electronics, University of Calcutta, Kolkata, 700009, India
| | - Ria Ghosh
- Department of Chemical and Biological Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata, 700106, India
| | - Amrita Banerjee
- Department of Physics, Jadavpur University, 188, Raja Subodh Chandra Mallick Rd, Poddar Nagar, Jadavpur, Kolkata, West Bengal, 700032, India
| | - Soumendra Singh
- Department of Chemical and Biological Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata, 700106, India
- Neo Care Inc, 27, Parker St, Dartmouth, NS, B2Y 2W1, Canada
- Electrical and Computer Engineering Department, Dalhousie University, 6299 South St, Halifax, NS, B3H 4R2, Canada
| | - Arpita Chattopadhyay
- Department of Basic Science and Humanities, Techno International New Town Block, DG 1/1, Action Area 1 New Town, Rajarhat, Kolkata, 700156, India
- Department of Physics, Sister Nivedita University, DG 1/2 New Town, Action Area 1, Kolkata, 700156, India
| | - Saleh A Ahmed
- Chemistry Department, Faculty of Applied Science, Umm Al-Qura University, 21955, Makkah, Saudi Arabia.
- Chemistry Department, Faculty of Science, Assiut University, Assiut, 71516, Egypt.
| | - Rabab S Jassas
- Department of Chemistry, Jamoum University College, Umm Al-Qura University, 21955, Makkah, Saudi Arabia
| | - Munirah M Al-Rooqi
- Chemistry Department, Faculty of Applied Science, Umm Al-Qura University, 21955, Makkah, Saudi Arabia
| | - Ziad Moussa
- Department of Chemistry, College of Science, United Arab Emirates University, P.O. Box 15551, Al Ain, Abu Dhabi, United Arab Emirates
| | - Ismail I Althagafi
- Chemistry Department, Faculty of Applied Science, Umm Al-Qura University, 21955, Makkah, Saudi Arabia
| | - Debasish Bhattacharya
- Department of Gynecology & Obstetrics, Nil Ratan Sircar Medical College & Hospital, 138, AJC Bose Road, Sealdah, Raja Bazar, Kolkata, 700014, India
| | - Kallol Bhattacharya
- Department of Applied Optics and Photonics, University of Calcutta, JD-2, Sector-III, Salt Lake, Kolkata, West Bengal, 700 106, India
| | - Asim Kumar Mallick
- Department of Pediatrics, Nil Ratan Sircar Medical College and Hospital, Kolkata, 700014, India
| | - Samir Kumar Pal
- Department of Chemical and Biological Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata, 700106, India.
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13
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Zidani J, Hassine K, Zannen M, Zeinert A, Da Costa A, Ferri A, Belhadi J, Majdoub M, El Marssi M, Lahmar A. Synthesis, Structural, Optical, and Electrical Characterization of Biochitosan/Na 0.5Bi 0.5TiO 3 Composite Thin-Film Materials. MICROMACHINES 2023; 14:1841. [PMID: 37893278 PMCID: PMC10609301 DOI: 10.3390/mi14101841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023]
Abstract
The purpose of this research work was to synthesis bioderived nanocomposite films by incorporating Na0.5Bi0.5TiO3 (NBTO) nanoparticles into a chitosan matrix. The NBTO nanoparticles were synthesized using a traditional solid-state technique. Then, through a solution-casting approach, flexible composite films were fabricated using chitosan polymer. The study presents a range of compelling findings. For structural and morphological insights, scanning electron microscopy (SEM) reveals a fascinating morphology where NBTO nanoparticles are uniformly dispersed and interlocked with other particles, forming interconnected grains with significant interspaces within the chitosan matrix. For the optical properties, the spectral response within the 300-800 nm range is primarily governed by light scattering attributed to NBTO particles with diameter sizes ranging from 100 to 400 nm, as well as the distinctive bandgap exhibited by the NBTO phase. The investigation of dielectric properties demonstrates that composite films exhibit markedly higher dielectric values in comparison to pure chitosan films. It is noteworthy that an increase in the NBTO content results in a corresponding increase in dielectric values, enhancing the versatility of these materials. Local piezoelectric measurements utilizing piezoresponse force microscopy confirm the expected piezoelectric and ferroelectric behavior of NBTO particles when dispersed within the chitosan matrix. This research introduces a novel class of biocompatible nanocomposite materials, combining impressive structural attributes, enhanced dielectric properties, and piezoelectric capabilities. The outcomes of this study hold substantial promise for advanced applications in opto- and piezoelectric technologies, marking a significant advancement in biologically sourced materials with multifunctional properties.
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Affiliation(s)
- Jacem Zidani
- Laboratoire de Physique de la Matière Condensée (LPMC), Université de Picardie Jules Verne, 33 rue Saint-Leu, 80039 Amiens, CEDEX 1, France; (J.Z.); (M.E.M.)
- Laboratory of Interfaces and Advanced Materials (LIMA), Faculty of Sciences of Monastir, University of Monastir, Bd. of the Environment, Monastir 5019, Tunisia; (K.H.); (M.Z.); (M.M.)
| | - Khaoula Hassine
- Laboratory of Interfaces and Advanced Materials (LIMA), Faculty of Sciences of Monastir, University of Monastir, Bd. of the Environment, Monastir 5019, Tunisia; (K.H.); (M.Z.); (M.M.)
| | - Moneim Zannen
- Laboratory of Interfaces and Advanced Materials (LIMA), Faculty of Sciences of Monastir, University of Monastir, Bd. of the Environment, Monastir 5019, Tunisia; (K.H.); (M.Z.); (M.M.)
| | - Andreas Zeinert
- Laboratoire de Physique de la Matière Condensée (LPMC), Université de Picardie Jules Verne, 33 rue Saint-Leu, 80039 Amiens, CEDEX 1, France; (J.Z.); (M.E.M.)
| | - Antonio Da Costa
- University of Artois, CNRS, UMR 8181—UCCS—Unité de Catalyse et Chimie du Solide, 62300 Lens, France; (A.D.C.); (A.F.)
| | - Anthony Ferri
- University of Artois, CNRS, UMR 8181—UCCS—Unité de Catalyse et Chimie du Solide, 62300 Lens, France; (A.D.C.); (A.F.)
| | - Jamal Belhadi
- Laboratoire de Physique de la Matière Condensée (LPMC), Université de Picardie Jules Verne, 33 rue Saint-Leu, 80039 Amiens, CEDEX 1, France; (J.Z.); (M.E.M.)
| | - Mustapha Majdoub
- Laboratory of Interfaces and Advanced Materials (LIMA), Faculty of Sciences of Monastir, University of Monastir, Bd. of the Environment, Monastir 5019, Tunisia; (K.H.); (M.Z.); (M.M.)
| | - Mimoun El Marssi
- Laboratoire de Physique de la Matière Condensée (LPMC), Université de Picardie Jules Verne, 33 rue Saint-Leu, 80039 Amiens, CEDEX 1, France; (J.Z.); (M.E.M.)
| | - Abdelilah Lahmar
- Laboratoire de Physique de la Matière Condensée (LPMC), Université de Picardie Jules Verne, 33 rue Saint-Leu, 80039 Amiens, CEDEX 1, France; (J.Z.); (M.E.M.)
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14
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Eslamieh-Ei FM, Sharifimoghaddammood N, Poustchi Tousi SA, Basharkhah S, Mottaghipisheh J, Es-Haghi A, Taghavizadeh Yazdi ME, Iriti M. Synthesis and its characterisation of selenium/silver/chitosan and cellular toxicity against liver carcinoma cells studies. Nat Prod Res 2023:1-9. [PMID: 37708315 DOI: 10.1080/14786419.2023.2256023] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 08/23/2023] [Accepted: 09/02/2023] [Indexed: 09/16/2023]
Abstract
Liver cancer is one of the most common lethal malignancy in the world. To treat liver cancer, new cure options are crucial. The use of natural substances along nanosciences may provide healing with lower toxicity and a smaller amount of side properties. In this research, The three-component selenium-silver-chitosan nanocomposite (Se-Ag-CS NCs) were synthesised with the help of ultrasound in a stepwise manner. The as-synthesised Se-Ag-CS NCs were characterised accordingly by applying powder X-Ray diffraction (PXRD), Fourier transforms infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), energy dispersive x-ray analysis (EDX), transmission electron microscopy (TEM), dynamic light scattering (DLS) and potential. The PXRD demonstrated that the NCs were synthesised successfully and the grain sizes of 27.3 were obtained. The FESEM and TEM analyses have shown the NCs have a nano-sized structure with spherical and rod-like morphologies in a coating of CS. The DLS analysis also revealed that NCs were synthesised in nanoscale particles. The NCs' surface charge was also positive due to the presence of chitosan. Different concentrations of NCs (0, 0.125, 0.250, 0.500, and 1 mg/ml) were tested at different times (24, 48, and 72 h) to measure cytotoxicity against liver cancer cells. The results showed at a concentration of 1 mg/mL in 72 h, the most toxicity effects were applied to liver cancer cells. Moreover, the results indicated NCs can inhibit the growth of cancer cells in a dose-dependent manner, while the toxicity of nanocomposite on normal cells was less. It is important to create nanocomposites derived from natural polymers as a new strategy in cancer treatment that can fight cancer cells while having low toxicity for normal cells. Therefore, the present results can be considered in improving cancer-fighting methods.
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Affiliation(s)
| | | | | | - Samira Basharkhah
- Department of Biochemistry, Faculty of Science, Payame Noor University, Mashhad, Iran
| | - Javad Mottaghipisheh
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
| | - Ali Es-Haghi
- Department of Biology, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | | | - Marcello Iriti
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milan, Italy
- National Interuniversity Consortium of Materials Science and Technology, Firenze, Italy
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15
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Nguyen THP, Le NAT, Tran PT, Bui DD, Nguyen QH. Preparation of water-soluble chitosan oligosaccharides by oxidative hydrolysis of chitosan powder with hydrogen peroxide. Heliyon 2023; 9:e19565. [PMID: 37681167 PMCID: PMC10480655 DOI: 10.1016/j.heliyon.2023.e19565] [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: 02/23/2023] [Revised: 08/19/2023] [Accepted: 08/25/2023] [Indexed: 09/09/2023] Open
Abstract
Chitosan (CS) is only soluble in weak acid medium, thereby limiting its wide utilisation in the field of biomedicine, food, and agriculture. In this report, we present a method for preparing water-soluble CS oligosaccharides (COSs) at high concentration (∼10%, w/v) via the oxidative hydrolysis of CS powder with molecular weight (Mw) ∼90,000 g/mol) in 2% H2O2 solution at ambient temperature by a two-step process, namely, the heterogeneous hydrolysis step and homogeneous hydrolysis step. The resultant COSs were characterised by gel permeation chromatography (GPC), fourier transforms infrared spectroscopy (FT-IR), ultraviolet-visible spectroscopy (UV-Vis), proton nuclear magnetic resonance spectroscopy (1H NMR) and X-ray diffraction (XRD) spectroscopy. The resulting products were composed of COSs (Mw of 2000-6600 g/mol) that were completely soluble in water. The results also indicated that the structure of COSs was almost unchanged compared with the original CS unless Mw was low. Accordingly, COSs with low Mw (∼2000 g/mol) and high concentration (10%, w/v) could be effectively prepared by the oxidative hydrolysis of CS powder using hydrogen peroxide under ambient conditions.
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Affiliation(s)
- Trong Hoanh Phong Nguyen
- Graduate University of Science and Technology-Vietnam Academy of Science and Technology, Hanoi 10000, Viet Nam
- Vietnam Atomic Energy Institute, Hanoi 10000, Viet Nam
| | - Nghiem Anh Tuan Le
- Institute of Applied Materials Science-Vietnam Academy of Science and Technology, Ho Chi Minh City 70000, Viet Nam
| | - Phuoc Tho Tran
- Institute of Applied Materials Science-Vietnam Academy of Science and Technology, Ho Chi Minh City 70000, Viet Nam
| | - Duy Du Bui
- Graduate University of Science and Technology-Vietnam Academy of Science and Technology, Hanoi 10000, Viet Nam
- Institute of Applied Materials Science-Vietnam Academy of Science and Technology, Ho Chi Minh City 70000, Viet Nam
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16
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Zarharan H, Bagherian M, Shah Rokhi A, Ramezani Bajgiran R, Yousefi E, Heravian P, Niazi Khazrabig M, Es-haghi A, Taghavizadeh Yazdi ME. The anti-angiogenesis and antioxidant activity of chitosan-mediated synthesized selenium-gold nanostructure. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
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17
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Petrovici AR, Anghel N, Dinu MV, Spiridon I. Dextran-Chitosan Composites: Antioxidant and Anti-Inflammatory Properties. Polymers (Basel) 2023; 15:polym15091980. [PMID: 37177127 PMCID: PMC10180777 DOI: 10.3390/polym15091980] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/17/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023] Open
Abstract
This study presents the development of new formulations consisting of dextran (Dex) and chitosan (Ch) matrices, with fillings such as chitosan stearate (MCh), citric acid, salicylic acid, or ginger extract. These materials were characterized using Fourier-Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), and mechanical tests, and evaluated for antioxidant properties, including scavenging activities, metal chelation, and ferric ion reducing power, as well as anti-inflammatory properties, measuring the binding affinity between serum albumin and the bioactive substances, which can influence their bioavailability, transport, and overall anti-inflammatory effect. Compounds in ginger such as 6-gingerol reduce inflammation by inhibiting the production of inflammatory substances, such as prostaglandin, cytokines, interleukin-1β, and pro-inflammatory transcription factor (NF-κB) and, alongside citric and salicylic acids, combat oxidative stress, stabilizes cell membranes, and promote membrane fluidity, thereby preserving membrane integrity and function. Incorporating chitosan stearate in chitosan:dextran samples created a dense, stiff film with an elastic modulus approximately seventeen times higher than for the chitosan:dextran matrix. The Dex:Ch:MCh sample exhibited low compressibility at 48.74 ± 1.64 kPa, whereas the Dex:Ch:MCh:citric acid:salicylic acid composite had a compact network, allowing for 70.61 ± 3.9% compression at 109.30 kPa. The lipid peroxidation inhibitory assay revealed that Dex:Ch:MCh:citric acid had the highest inhibition value with 83 ± 0.577% at 24 h. The study highlights that adding active substances like ginger extract and citric acid to Dex:Ch composites enhances antioxidant properties, while modified chitosan improves mechanical properties. These composites may have potential medical applications in repairing cell membranes and regulating antioxidant enzyme activities.
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Affiliation(s)
- Anca Roxana Petrovici
- "Petru Poni" Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Narcis Anghel
- "Petru Poni" Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Maria Valentina Dinu
- "Petru Poni" Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Iuliana Spiridon
- "Petru Poni" Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
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18
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Kim H, Kim H, Ahn Y, Hong KB, Kim IW, Choi RY, Suh HJ, Han SH. The Preparation and Physiochemical Characterization of Tenebrio molitor Chitin Using Alcalase. Molecules 2023; 28:3254. [PMID: 37050017 PMCID: PMC10096241 DOI: 10.3390/molecules28073254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 03/24/2023] [Accepted: 03/30/2023] [Indexed: 04/08/2023] Open
Abstract
Chitin is mostly produced from crustaceans, but it is difficult to supply raw materials due to marine pollution, and the commonly used chemical chitin extraction method is not environmentally friendly. Therefore, this study aims to establish a chitin extraction process using enzymes and to develop edible insect-derived chitin as an eco-friendly new material. The response surface methodology (RSM) was used to determine the optimal conditions for enzymatic hydrolysis. The optimal conditions for enzymatic hydrolysis by RSM were determined to be the substrate concentration (7.5%), enzyme concentration (80 μL/g), and reaction time (24 h). The solubility and DDA of the mealworm chitosan were 45% and 37%, respectively, and those of the commercial chitosan were 61% and 57%, respectively. In regard to the thermodynamic properties, the exothermic peak of mealworm chitin was similar to that of commercial chitin. In the FT-IR spectrum, a band was observed in mealworm chitin corresponding to the C=O of the NHCOCH3 group at 1645 cm-1, but this band showed low-intensity C=O in the mealworm chitosan due to deacetylation. Collectively, mealworm chitosan shows almost similar physical and chemical properties to commercial chitosan. Therefore, it is shown that an eco-friendly process can be introduced into chitosan production by using enzyme-extracted mealworms for chitin/chitosan production.
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Affiliation(s)
- Hyemi Kim
- Department of Integrated Biomedical and Life Sciences, Graduate School, Korea University, Seoul 02841, Republic of Korea; (H.K.); (H.K.); (Y.A.); (H.J.S.)
| | - Hyeongyeong Kim
- Department of Integrated Biomedical and Life Sciences, Graduate School, Korea University, Seoul 02841, Republic of Korea; (H.K.); (H.K.); (Y.A.); (H.J.S.)
| | - Yejin Ahn
- Department of Integrated Biomedical and Life Sciences, Graduate School, Korea University, Seoul 02841, Republic of Korea; (H.K.); (H.K.); (Y.A.); (H.J.S.)
| | - Ki-Bae Hong
- Department of Food Science and Nutrition, Jeju National University, Jeju 63243, Republic of Korea;
| | - In-Woo Kim
- National Institute of Agriculture Science, Wanju 55365, Republic of Korea; (I.-W.K.)
| | - Ra-Yeong Choi
- National Institute of Agriculture Science, Wanju 55365, Republic of Korea; (I.-W.K.)
| | - Hyung Joo Suh
- Department of Integrated Biomedical and Life Sciences, Graduate School, Korea University, Seoul 02841, Republic of Korea; (H.K.); (H.K.); (Y.A.); (H.J.S.)
- Transdisciplinary Major in Learning Health Systems, Department of Healthcare Sciences, Graduate School, Korea University, Seoul 02841, Republic of Korea
| | - Sung Hee Han
- Institute of Human Behavior & Genetics, Korea University, Seoul 02841, Republic of Korea
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19
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Gadore V, Mishra SR, Ahmaruzzaman M. Green and environmentally sustainable fabrication of SnS 2 quantum dots/chitosan nanocomposite for enhanced photocatalytic performance: Effect of process variables, and water matrices. JOURNAL OF HAZARDOUS MATERIALS 2023; 444:130301. [PMID: 36403450 DOI: 10.1016/j.jhazmat.2022.130301] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 10/17/2022] [Accepted: 10/30/2022] [Indexed: 05/27/2023]
Abstract
Concerns over the availability of clean water and the quality of treated wastewater are significant problems that call for an appropriate solution to improve the water quality. The present work emphasized the synthesis of novel SnS2 quantum dots (QDs) deposited on chitosan via a facile green precipitation method involving neem (Azadirachta indica) leaf extract and investigating its photocatalytic performance for the degradation of Crystal violet (CV) dye under varying reaction parameters, other organic and inorganic salts and water matrices. The crystal structure, surface morphology, and elemental composition of the prepared SnS2 (QDs)/Ch composite were evaluated by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), photoluminescence (PL) and energy dispersive X-ray analysis (EDAX) techniques. The average size of SnS2/Chitosan nanoparticles was calculated to be 8.8 nm using XRD, with the average diameter of SnS2 QDs to be 3.3 nm from TEM. UV-visible spectroscopy was used to investigate its optical properties. The direct band gap of SnS2/Chitosan estimated from Tauc's plot came to be 2.5 eV. The prepared novel SnS2/Ch composite showed outstanding photocatalytic activity for the degradation of CV through the Advanced Oxidation Process (AOP). The fabricated photocatalyst caused 98.60 ± 1.34 % degradation of CV within a short period of 70 min under optimum conditions. The photodegradation reaction followed pseudo-first-order rate kinetics with a rate constant of 0.0815 min-1. Furthermore, the photocatalyst showed high stability and was reusable for up to four cycles. The present work fulfils the aim of designing a novel, green, and efficient visible light-active nano-photocatalyst.
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Affiliation(s)
- Vishal Gadore
- Department of Chemistry, National Institute of Technology Silchar, 788010 Assam, India
| | - Soumya Ranjan Mishra
- Department of Chemistry, National Institute of Technology Silchar, 788010 Assam, India
| | - Md Ahmaruzzaman
- Department of Chemistry, National Institute of Technology Silchar, 788010 Assam, India.
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20
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Yari K, Gharati G, Akbari I. Evaluating effect of salt leaching method on release and swelling rate of metformin nanoparticles loaded-chitosan/polyvinyl alcohol porous composite. Int J Biol Macromol 2023; 227:1282-1292. [PMID: 36464193 DOI: 10.1016/j.ijbiomac.2022.11.323] [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: 06/24/2022] [Revised: 11/25/2022] [Accepted: 11/30/2022] [Indexed: 12/03/2022]
Abstract
In this study, salt leaching (SL) technique was used to prepare a chitosan/polyvinyl alcohol (CS/PVA) polymeric composite in order to load metformin nanoparticles (METNPs). Sodium chloride was added to the CS/PVA (0.5:0.1) composite to create a porous hydrogel using the SL technique. METNPs were then prepared by water/oil (w/o) method and loaded into the hydrogel structure. Transmission electron microscopy (TEM) and dynamic light scattering (DLS) analysis confirmed that >80 % of the METNPs were in the range of 10 nm. As a result, encapsulation increased due to the increase in surface-to-volume ratio. Scanning electron microscopy (SEM) and differential scanning calorimetry (DSC) results confirmed that creating porosity in the polymer composition by the SL method led to increased CS/PVA polymer chain mobility. The drug encapsulation increased due to more porosity, and the release in simulated gastric fluid (SGF) and simulated intestinal fluid (SIF) was according to the controlled diffusion kinetics. Furthermore, the drug release from CS/PVA composite was anomalous carrier type that could be attributed to the addition of salt. However, due to the increase the amount of PVA and the creation of a monotonous composite structure, encapsulation of drug decreased, which is in accordance with the polymer relaxation mechanism.
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Affiliation(s)
- Kasra Yari
- Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, 1477893855 Tehran, Iran
| | - Gelareh Gharati
- Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, 1477893855 Tehran, Iran
| | - Iman Akbari
- Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, 1477893855 Tehran, Iran.
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21
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Uğurlu E, Duysak Ö. A study on the extraction of chitin and chitosan from the invasive sea urchin Diadema setosum from Iskenderun Bay in the Northeastern Mediterranean. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:21416-21424. [PMID: 36271066 DOI: 10.1007/s11356-022-23728-9] [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: 04/22/2022] [Accepted: 10/15/2022] [Indexed: 06/16/2023]
Abstract
This work presents, for the first time, the extraction and characterization of chitin and chitosan from the testa (T) and spines (S) of the invasive sea urchin (Diadema setosum) from the İskenderun Bay in the Northeastern Mediterranean. Testa chitin (T-CT), spine chitin (S-CT), testa chitosan (T-CS), and spine chitosan (S-CS) were isolated following demineralization, deproteinization (chitin), and deacetylation (chitosan). The yield of chitin extraction from dry sea urchin testa (T-CT) and spines (S-CT) were 57.2 ± 1.43% and 67.1 ± 0.17%, respectively. The yield of chitosan produced from extracted testa (T-CS) and spines (S-CS) chitin were 87.3 ± 1.82% and 74.04 ± 1.27%, respectively. Degree of deacetylation (DD%) value were calculated using FT-IR (84.19% and 85.80%), resulting in a high DD. They were perfectly soluble in acidic solution. We also characterized the isolated chitin (T-CT and S-CT) and chitosan (T-CS and S-CS) by determining its physicochemical properties using X-ray powder diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), and scanning electron microscope analysis (SEM). Overall, the results indicated that the preparation of chitin and chitosan from the invasive sea urchin testa and spines could open the opportunity for the value-added seafood waste to be utilized in a wide range of practical applications such as medicine, pharmaceutical, and biotechnology.
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Affiliation(s)
- Erkan Uğurlu
- Faculty of Marine Science and Technology, Iskenderun Technical University, Iskenderun, Hatay, Turkey.
| | - Önder Duysak
- Faculty of Marine Science and Technology, Iskenderun Technical University, Iskenderun, Hatay, Turkey
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22
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Aghris S, Azriouil M, Matrouf M, Ettadili F, Laghrib F, Saqrane S, Farahi A, Bakasse M, Lahrich S, El Mhammedi M. Chitosan biopolymer coated graphite electrode as a robust electrochemical platform for the detection of the insecticide flubendiamide. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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23
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Sultan M, Abdelhakim A, Nassar M, Hassan YR. Active packaging of chitosan film modified with basil oil encapsulated in silica nanoparticles as an alternate for plastic packaging materials. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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24
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Highly Efficient Recovery of Ruthenium from Aqueous Solutions by Adsorption Using Dibenzo-30-Crown-10 Doped Chitosan. Polymers (Basel) 2022; 14:polym14081551. [PMID: 35458298 PMCID: PMC9030289 DOI: 10.3390/polym14081551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/25/2022] [Accepted: 04/06/2022] [Indexed: 12/10/2022] Open
Abstract
Ruthenium, as an industrial by-product or from natural sources, represents an important economical resource due to its specific applications. A complex problem is represented by ruthenium separation during reprocessing operations, therefore, different materials and methods have been proposed. The present study aims to develop a new material with good adsorbent properties able to be used for ruthenium recovery by adsorption from aqueous solutions. Absorbent material was obtained using chitosan (Ch) surface modification with dibenzo-30-crown-10 ether (DB30C10). Chitosan represents a well-known biopolymer with applicability in different adsorptive processes due to the presence of hydroxyl-, carboxyl-, and nitrogen-containing groups in the structure. Additionally, crown ethers are macromolecules with a good complexation capacity for metallic ions. It is expected that the adsorptive efficiency of newly prepared material will be superior to that of the individual components. New synthesized material was characterized using scanning electron microscopy coupled with energy dispersive X-ray (SEM–EDX), Fourier transform infrared spectroscopy (FT-IR), Brunauer–Emmett–Teller surface area analysis (BET), and determination of point of zero charge (pZc). Results obtained from the performed kinetic, thermodynamic, and equilibrium studies confirmed the good adsorptive capacity of the prepared material, Ch-DB30C10, obtaining a maximum adsorption capacity of 52 mg Ru(III) per gram. This adsorption capacity was obtained using a solution with an initial concentration of 275 mg L−1, at pH 2, and 298 K. Ru(III) adsorption kinetics were studied by modeling the obtained experimental data with pseudo-first order and pseudo-second order models. Desorption studies established that the optimum eluent was represented by the 5M HNO3 solution. Based on the performed studies, a mechanism for recovery of ruthenium by adsorption was proposed.
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25
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Rocha GA, Ferreira RB. Antimicrobial polysaccharides obtained from natural sources. Future Microbiol 2022; 17:701-716. [PMID: 35392662 DOI: 10.2217/fmb-2021-0257] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
With the increase in resistance to conventional antibiotics among bacterial pathogens, the search for new antimicrobials becomes more and more necessary. Although most studies focus on the discovery of antimicrobial peptides for the development of new antibiotics, several others in the literature have described polysaccharides with the same biological activity with the potential for use as therapeutic alternatives. Here we review the currently available literature on antimicrobial polysaccharides isolated from different sources to demonstrate that there are several possible unconventional carbohydrate polymers that could act as therapeutic alternatives in the battle against drug-resistant pathogens.
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Affiliation(s)
- Giulia A Rocha
- Departamento de Microbiologia Médica Instituto de Microbiologia Paulo de Góes CCS, Bloco I2-028, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ, 21941-590, Brasil
| | - Rosana Br Ferreira
- Departamento de Microbiologia Médica Instituto de Microbiologia Paulo de Góes CCS, Bloco I2-028, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ, 21941-590, Brasil
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26
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Vu THN, Morozkina SN, Uspenskaya MV. Study of the Nanofibers Fabrication Conditions from the Mixture of Poly(vinyl alcohol) and Chitosan by Electrospinning Method. Polymers (Basel) 2022; 14:811. [PMID: 35215724 PMCID: PMC8963080 DOI: 10.3390/polym14040811] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 02/09/2022] [Accepted: 02/10/2022] [Indexed: 02/01/2023] Open
Abstract
Nanofiber fabrication is attracting great attention from scientists and technologists due to its applications in many fields of life. In order to design a nanosized polymer-based drug delivery system, we studied the conditions for the fabrication of electrospun nanofibers from poly (vinyl alcohol) (PVA) and chitosan (CS), which are well-known as biocompatible, biodegradable and non-toxic polymers that are widely used in the medical field. Aiming to develop nanofibers that can directly target diseased cells for treatment, such as cancerous cells, the ideal choice would be a system that contains the highest CS content as well as high quality fibers. In the present manuscript, it is expected to become the basis for improving the low bioavailability of medicinal drugs limited by poor solubility and low permeability. PVA-CS nanofibers were obtained by electrospinning at a PVA:CS ratio of 5:5 in a 60% (w/w) acetic acid solution under the following parameters: voltage 30 kV, feed rate 0.2 mL/h, needle-collector distance 14 cm. The obtained fibers were relatively uniform, with a diameter range of 77-292 nm and average diameter of 153 nm. The nanofiber system holds promise as a potential material for the integration of therapeutic drugs.
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Affiliation(s)
- Thi Hong Nhung Vu
- Chemical Engineering Centre, ITMO University, Kronverkskiy Prospekt, 49A, 197101 St. Petersburg, Russia; (S.N.M.); (M.V.U.)
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27
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Asghari F, Rabiei Faradonbeh D, Malekshahi ZV, Nekounam H, Ghaemi B, Yousefpoor Y, Ghanbari H, Faridi-Majidi R. Hybrid PCL/chitosan-PEO nanofibrous scaffolds incorporated with A. euchroma extract for skin tissue engineering application. Carbohydr Polym 2022; 278:118926. [PMID: 34973744 DOI: 10.1016/j.carbpol.2021.118926] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/26/2021] [Accepted: 11/19/2021] [Indexed: 12/12/2022]
Abstract
Skin tissue engineering is an advanced method to repair and regenerate skin injuries. Recent research is focused on the development of scaffolds that are safe, bioactive, and cytocompatible. In this work, a new hybrid nanofibrous scaffold composed of polycaprolactone/chitosan-polyethylene oxide (PCL/Cs-PEO) incorporated with Arnebia euchroma (A. euchroma) extract were synthesized by the two-nozzle electrospinning method. Then the synthesized scaffold was characterized for morphology, sustainability, chemical structure and properties. Moreover, to verify their potential in the burn wound healing process, biodegradation rate, contact angle, swelling properties, water vapor permeability, mechanical properties, antibacterial activity and drug release profile were measured. Furthermore, cytotoxicity and biocompatibility tests were performed on human dermal fibroblasts cell line via XTT and LDH assay. It is shown that the scaffold improved and increased proliferation during in-vitro studies. Thus, results confirm the efficacy and potential of the hybrid nanofibrous scaffold for skin tissue engineering.
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Affiliation(s)
- Fatemeh Asghari
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Davood Rabiei Faradonbeh
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ziba Veisi Malekshahi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Houra Nekounam
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Behnaz Ghaemi
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Yaser Yousefpoor
- Research Center of Advanced Technologies in Medicine, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
| | - Hossein Ghanbari
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Faridi-Majidi
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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28
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Ho HM, Craig DQM, Day RM. Design of Experiment Approach to Modeling the Effects of Formulation and Drug Loading on the Structure and Properties of Therapeutic Nanogels. Mol Pharm 2022; 19:602-615. [PMID: 35061948 PMCID: PMC9097514 DOI: 10.1021/acs.molpharmaceut.1c00699] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 01/11/2022] [Accepted: 01/11/2022] [Indexed: 01/19/2023]
Abstract
The physical properties of nanoparticles may affect the uptake mechanism, biodistribution, stability, and other physicochemical properties of drug delivery systems. This study aimed to first develop a model exploring the factors controlling the nanogel physical properties using a single drug (propranolol), followed by an evaluation of whether these models can be applied more generally to a range of drugs. Size, polydispersity, ζ potential, and encapsulation efficiency were investigated using a design of experiment (DOE) approach to optimize formulations by systematically identifying the effects of, and interactions between, parameters associated with nanogel formulation and drug loading. Three formulation factors were selected, namely, chitosan concentration, the ratio between the chitosan and cross-linker─sodium triphosphate─and the ratio between the chitosan and drug. The results indicate that the DOE approach can be used not only to model but also to predict the size and polydispersity index (PDI). To explore the application of these prediction models with other drugs and to identify the relationship between the drug structure and nanogel properties, nanogels loaded with 12 structurally distinct drugs and 6 structurally similar drugs were fabricated at the optimal condition for propranolol in the model. The measured size, PDI, and ζ potential of the nanogels could not be modeled using distinct DOE parameters for dissimilar drugs, indicating that each drug requires a separate analysis. Nevertheless, for drugs with structural similarities, various linear and nonlinear trends were observed in the size, PDI, and ζ potential of nanogels against selected molecular descriptors, indicating that there are indeed relationships between the drug molecular structure and the performance outcomes, which may be modeled and predicted using the DOE approach. In conclusion, the study demonstrates that DOE models can be applied to model and predict the influence of formulation and drug loading on key performance parameters. While distinct models are required for structurally unrelated drugs, it was possible to establish correlations for the drug series investigated, which were based on polarity, hydrophobicity, and polarizability, thereby elucidating the importance of the interactions between the drug and the nanogels based on the nanogel properties and thus deepening the understanding of the drug-loading mechanisms in nanogels.
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Affiliation(s)
- Hei Ming
Kenneth Ho
- School
of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, U.K.
- Centre
for Precision Healthcare, UCL Division of Medicine, University College London, 5 University Street, London WC1E 6JF, U.K.
| | - Duncan Q. M. Craig
- School
of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, U.K.
| | - Richard M. Day
- Centre
for Precision Healthcare, UCL Division of Medicine, University College London, 5 University Street, London WC1E 6JF, U.K.
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29
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Paiva WS, de Souza Neto FE, Queiroz MF, Batista LANC, Rocha HAO, de Lima Batista AC. Oligochitosan Synthesized by Cunninghamella elegans, a Fungus from Caatinga (The Brazilian Savanna) Is a Better Antioxidant than Animal Chitosan. Molecules 2021; 27:molecules27010171. [PMID: 35011403 PMCID: PMC8747077 DOI: 10.3390/molecules27010171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 12/25/2022] Open
Abstract
Animal chitosan (Chit-A) is gaining more acceptance in daily activities. It is used in a range of products from food supplements for weight loss to even raw materials for producing nanoparticles and hydrogel drug carriers; however, it has low antioxidant activity. Fungal oligochitosan (OChit-F) was identified as a potential substitute for Chit-A. Cunninghamella elegans is a fungus found in the Brazilian savanna (Caatinga) that produces OligoChit-F, which is a relatively poorly studied compound. In this study, 4 kDa OChit-F with a 76% deacetylation degree was extracted from C. elegans. OChit-F showed antioxidant activity similar to that of Chit-A in only one in vitro test (copper chelation) but exhibited higher activity than that of Chit-A in three other tests (reducing power, hydroxyl radical scavenging, and iron chelation). These results indicate that OChit-F is a better antioxidant than Chit-A. In addition, Chit-A significantly increased the formation of calcium oxalate crystals in vitro, particularly those of the monohydrate (COM) type; however, OChit-F had no effect on this process in vitro. In summary, OChit-F had higher antioxidant activity than Chit-A and did not induce the formation of CaOx crystals. Thus, OChit-F can be used as a Chit-A substitute in applications affected by oxidative stress.
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Affiliation(s)
- Weslley Souza Paiva
- Postgraduate Programe in Biotechnology (RENORBIO), Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, Rio Grande do Norte, Brazil;
- Laboratório de Biotecnologia de Polímeros Naturais-BIOPOL, Departament of Biochemistry, Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, Rio Grande do Norte, Brazil; (M.F.Q.); (L.A.N.C.B.)
- Correspondence:
| | | | - Moacir Fernandes Queiroz
- Laboratório de Biotecnologia de Polímeros Naturais-BIOPOL, Departament of Biochemistry, Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, Rio Grande do Norte, Brazil; (M.F.Q.); (L.A.N.C.B.)
- Biomedicine Departament, Universidade Potiguar, Natal 59056-000, Rio Grande do Norte, Brazil
| | - Lucas Alighieri Neves Costa Batista
- Laboratório de Biotecnologia de Polímeros Naturais-BIOPOL, Departament of Biochemistry, Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, Rio Grande do Norte, Brazil; (M.F.Q.); (L.A.N.C.B.)
| | - Hugo Alexandre Oliveira Rocha
- Postgraduate Programe in Biotechnology (RENORBIO), Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, Rio Grande do Norte, Brazil;
- Biomedicine Departament, Universidade Potiguar, Natal 59056-000, Rio Grande do Norte, Brazil
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30
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Li HH, Livneh H, Chen WJ, Fan WL, Lu MC, Guo HR, Tsai TY. Effect of Chinese Herbal Medicines on Hearing Loss Risk in Rheumatoid Arthritis Patients: Retrospective Claims Analysis. Front Med (Lausanne) 2021; 8:683211. [PMID: 34355003 PMCID: PMC8329330 DOI: 10.3389/fmed.2021.683211] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 06/24/2021] [Indexed: 12/30/2022] Open
Abstract
Objectives: Patients with rheumatoid arthritis (RA) are at a higher risk of extra-articular manifestations, especially hearing loss (HL). Although Chinese herbal medicines (CHM) are proven safe and effective treatments for inflammatory conditions, the effect of CHM use on HL in RA patients is unknown. This cohort study aims to determine the relationship between CHM use and the subsequent risk of HL among RA patients. Methods: From health insurance claims data in Taiwan, a total of 6,905 persons aged 20-80 years with newly-diagnosed RA in 2000-2009 were identified. Of these, we recruited 2,765 CHM users and randomly selected 2,765 non-CHM users who matched with the users by the propensity score. Both cohorts were followed up until the end of 2012 to estimate the incidence of HL. Cox proportional hazards regression was used to estimate the adjusted hazard ratio (HR) for HL. Results: The incidence of HL was lower in the CHM users than in the comparison cohort (8.06 vs. 10.54 per 1,000 person-years) (adjusted HR, 0.77; 95% CI, 0.63-0.94). Those who received CHM for more than 2 years had the greatest benefit against the onset of HL, with over 50% risk reduction. Prescriptions of Hai Piao Xiao, Yan Hu Suo, San-Qi, Huang Qin, Dang Shen, Jia-Wei-Xiao-Yao-San, Shu-Jing-Huo-Xue-Tang, and Dang-Gui-Nian-Tong-Tang were found to be associated with a reduced risk of HL. Conclusions: Our findings suggest that adding CHM to conventional therapy may reduce the subsequent risk of HL in RA patients. Prospective randomized trials are recommended to further clarify whether the association revealed in this study supports such a causal relationship.
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Affiliation(s)
- Hsin-Hua Li
- Department of Chinese Medicine, Dalin Tzuchi Hospital, The Buddhist Tzuchi Medical Foundation, Chiayi, Taiwan.,Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hanoch Livneh
- Rehabilitation Counseling Program, Portland State University, Portland, OR, United States
| | - Wei-Jen Chen
- Department of Chinese Medicine, Dalin Tzuchi Hospital, The Buddhist Tzuchi Medical Foundation, Chiayi, Taiwan.,Graduate Institute of Sports Science, National Taiwan Sport University, Taoyuan, Taiwan.,School of Post-baccalaureate Chinese Medicine, Tzu Chi University, Hualien, Taiwan.,Center of Sports Medicine, Dalin Tzuchi Hospital, The Buddhist Tzuchi Medical Foundation, Chiayi, Taiwan
| | - Wen-Lin Fan
- Emergency Department, Dalin Tzuchi Hospital, The Buddhist Tzuchi Medical Foundation, Chiayi, Taiwan
| | - Ming-Chi Lu
- Division of Allergy, Immunology and Rheumatology, Dalin Tzuchi Hospital, The Buddhist Tzuchi Medical Foundation, Chiayi, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - How-Ran Guo
- Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Occupational and Environmental Medicine, National Cheng Kung University Hospital, Tainan, Taiwan.,Occupational Safety, Health, and Medicine Research Center, National Cheng Kung University, Tainan, Taiwan
| | - Tzung-Yi Tsai
- Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Nursing, Tzu Chi University of Science and Technology, Hualien, Taiwan.,Department of Medical Research, Dalin Tzuchi Hospital, The Buddhist Tzuchi Medical Foundation, Chiayi, Taiwan
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Senol-Arslan D. Isotherms, kinetics and thermodynamics of pb(ii) adsorption by crosslinked chitosan/sepiolite composite. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03688-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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32
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Sultan M, Hafez OM, Saleh MA, Youssef AM. Smart edible coating films based on chitosan and beeswax-pollen grains for the postharvest preservation of Le Conte pear. RSC Adv 2021; 11:9572-9585. [PMID: 35423446 PMCID: PMC8695420 DOI: 10.1039/d0ra10671b] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 02/11/2021] [Indexed: 01/26/2023] Open
Abstract
Smart edible coating films can be used in food packaging. For this application, they must have good physical and mechanical properties. Herein, chitosan–beeswax based film is used to preserve Le Conte pears postharvest. The chitosan–beeswax films were characterized using XRD, FT-IR, and SEM analysis. Moreover, all films showed good self-healing aptitudes ranging from 86.7 to 96.3. The film treated with pollen grains showed an enhanced water contact angle compared with the chitosan film. The chitosan–beeswax/pollen grain film exhibited a two-fold lower WVTR value compared to the chitosan film, and showed the tendency to increase the stiffness of the film. The elongation% at break was reduced from 35.81 to 14.09. Fruit quality parameters were determined in cold storage for 105 days during shelf life after a simulated marketing period of 7 days. All coated fruits successfully showed decrease in weight loss, decay and rate of softening. Therefore, chitosan–beeswax/pollen grains can be considered safe and effective coating for the fruit preservation. Smart edible coating films can be used in food packaging.![]()
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Affiliation(s)
- Maha Sultan
- Packaging Materials Department, National Research Centre 33 El Bohouth St. (former El Tahrir st.), Dokki Giza 12622 Egypt +20 33370931 +20 33322418
| | - Omaima M Hafez
- Pomology Departments, National Research Centre Rd., El Butouth St., Dokki Cairo 12622 Egypt
| | - Malaka A Saleh
- Pomology Departments, National Research Centre Rd., El Butouth St., Dokki Cairo 12622 Egypt
| | - Ahmed M Youssef
- Packaging Materials Department, National Research Centre 33 El Bohouth St. (former El Tahrir st.), Dokki Giza 12622 Egypt +20 33370931 +20 33322418
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Muthu M, Gopal J, Chun S, Devadoss AJP, Hasan N, Sivanesan I. Crustacean Waste-Derived Chitosan: Antioxidant Properties and Future Perspective. Antioxidants (Basel) 2021; 10:228. [PMID: 33546282 PMCID: PMC7913366 DOI: 10.3390/antiox10020228] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/16/2021] [Accepted: 01/21/2021] [Indexed: 12/14/2022] Open
Abstract
Chitosan is obtained from chitin that in turn is recovered from marine crustacean wastes. The recovery methods and their varying types and the advantages of the recovery methods are briefly discussed. The bioactive properties of chitosan, which emphasize the unequivocal deliverables contained by this biopolymer, have been concisely presented. The variations of chitosan and its derivatives and their unique properties are discussed. The antioxidant properties of chitosan have been presented and the need for more work targeted towards harnessing the antioxidant property of chitosan has been emphasized. Some portions of the crustacean waste are being converted to chitosan; the possibility that all of the waste can be used for harnessing this versatile multifaceted product chitosan is projected in this review. The future of chitosan recovery from marine crustacean wastes and the need to improve in this area of research, through the inclusion of nanotechnological inputs have been listed under future perspective.
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Affiliation(s)
- Manikandan Muthu
- Laboratory of Neo Natural Farming, Chunnampet, Tamil Nadu 603 401, India;
| | - Judy Gopal
- Department of Environmental Health Sciences, Konkuk University, Seoul 05029, Korea; (J.G.); (S.C.)
| | - Sechul Chun
- Department of Environmental Health Sciences, Konkuk University, Seoul 05029, Korea; (J.G.); (S.C.)
| | | | - Nazim Hasan
- Department of Chemistry, Faculty of Science, Jazan University, Jazan P.O. Box 114, Saudi Arabia;
| | - Iyyakkannu Sivanesan
- Department of Bioresources and Food Science, Institute of Natural Science and Agriculture, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 05029, Korea
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Precious metals recovery from aqueous solutions using a new adsorbent material. Sci Rep 2021; 11:2016. [PMID: 33479466 PMCID: PMC7820582 DOI: 10.1038/s41598-021-81680-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 01/05/2021] [Indexed: 12/03/2022] Open
Abstract
Platinum group metals (PGMs) palladium, platinum, and ruthenium represent the key materials for automotive exhaust gas treatment. Since there are no adequate alternatives, the importance of these metals for the automotive industry is steadily rising. The high value of PGMs in spent catalysts justifies their recycling. Therefore, it is really important to recovery platinum group metals from aqueous solutions. Of the many PGMs recovery procedures, adsorption is a process with a good efficiency, but an important role is played by the adsorbent material used into the process. In order to improve the adsorption properties of materials were developed new methods for chemical modification of the solid supports, through functionalization with different extractants. In present paper a new adsorbent material (Chitosan-DB18C6) was used for PGMs recovery. The new adsorbent material was produced by impregnating Chitosan with dibenzo-18-crown-6-ether using Solvent Impregnated Resin (SIR) method. The crown ethers were chosen as extractant due to their known ability to bind metallic ions, whether they are symmetrically or unsymmetrically substituted. In order to determine the PGMs recovery efficiency for new prepared adsorbent material the equilibrium and kinetic studies were performed. Also, to study the PGMs adsorption mechanism the experimental data were modelled using pseudo-first-order and pseudo-second order kinetic models. Experimental data were fitted with three equilibrium isotherm models: Langmuir, Freundlich and Sips. The results proved that new adsorbent material (Chitosan-DB18C6) is an efficient adsorbent for PGMs recovery from aqueous solutions.
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Shafique M, Sohail M, Minhas MU, Khaliq T, Kousar M, Khan S, Hussain Z, Mahmood A, Abbasi M, Aziz HC, Shah SA. Bio-functional hydrogel membranes loaded with chitosan nanoparticles for accelerated wound healing. Int J Biol Macromol 2020; 170:207-221. [PMID: 33359612 DOI: 10.1016/j.ijbiomac.2020.12.157] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 12/17/2020] [Accepted: 12/20/2020] [Indexed: 02/06/2023]
Abstract
Wounds are often recalcitrant to traditional wound dressings and a bioactive and biodegradable wound dressing using hydrogel membranes can be a promising approach for wound healing applications. The present research aimed to design hydrogel membranes based on hyaluronic acid, pullulan and polyvinyl alcohol and loaded with chitosan based cefepime nanoparticles for potential use in cutaneous wound healing. The developed membranes were evaluated using dynamic light scattering, proton nuclear magnetic resonance, Fourier transform infrared spectroscopy, thermogravimetric analysis, and scanning electron microscopy. The results indicated the novel crosslinking and thermal stability of the fabricated hydrogel membrane. The in vitro analysis demonstrates that the developed membrane has water vapors transmission rate (WVTR) between 2000 and 2500 g/m2/day and oxygen permeability between 7 and 14 mg/L, which lies in the range of an ideal dressing. The swelling capacity and surface porosity to liberate encapsulated drug (cefepime) in a sustained manner and 88% of drug release was observed. The cefepime loaded hydrogel membrane demonstrated a higher zone of inhibition against Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli and excisional rat model exhibit expeditious recovery rate. The developed hydrogel membrane loaded with cefepime nanoparticles is a promising approach for topical application and has greater potential for an accelerated wound healing process.
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Affiliation(s)
- Maryam Shafique
- Department of Pharmacy, COMSATS University, Abbottabad Campus, Islamabad 22010, Pakistan
| | - Muhammad Sohail
- Department of Pharmacy, COMSATS University, Abbottabad Campus, Islamabad 22010, Pakistan.
| | | | - Touba Khaliq
- Department of Pharmacy, COMSATS University, Abbottabad Campus, Islamabad 22010, Pakistan
| | - Mubeen Kousar
- Department of Pharmacy, COMSATS University, Abbottabad Campus, Islamabad 22010, Pakistan
| | - Shahzeb Khan
- Department of Pharmacy, University of Malakand, Lower Dir, KPK, Pakistan; Discipline of Pharmaceutical Sciences, School of Health Sciences, UKZN, Durban, South Africa
| | - Zahid Hussain
- Department of Pharmaceutics & Pharmaceutical Technology, College of Pharmacy, University of Sharjah, Sharjah 27272, United Arab Emirates; Research Institute for Medical and Health Sciences (SIMHR), University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Arshad Mahmood
- Collage of Pharmacy, Al Ain University, Abu Dhabi, United Arab Emirates
| | - Mudassir Abbasi
- Department of Pharmacy, COMSATS University, Abbottabad Campus, Islamabad 22010, Pakistan
| | - Heather C Aziz
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, TX, USA
| | - Syed Ahmed Shah
- Department of Pharmacy, COMSATS University, Abbottabad Campus, Islamabad 22010, Pakistan
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One Step e-Beam Radiation Cross-Linking of Quaternary Hydrogels Dressings Based on Chitosan-Poly(Vinyl-Pyrrolidone)-Poly(Ethylene Glycol)-Poly(Acrylic Acid). Int J Mol Sci 2020; 21:ijms21239236. [PMID: 33287433 PMCID: PMC7731230 DOI: 10.3390/ijms21239236] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/29/2020] [Accepted: 11/30/2020] [Indexed: 01/26/2023] Open
Abstract
We report on the successful preparation of wet dressings hydrogels based on Chitosan-Poly(N-Vinyl-Pyrrolidone)-Poly(ethylene glycol)-Poly(acrylic acid) and Poly(ethylene oxide) by e-beam cross-linking in weakly acidic media, to be used for rapid healing and pain release of infected skin wounds. The structure and compositions of hydrogels investigated according to sol-gel and swelling studies, network parameters, as well as FTIR and XPS analyses showed the efficient interaction of the hydrogel components upon irradiation, maintaining the bonding environment while the cross-linking degree increasing with the irradiation dose and the formation of a structure with the mesh size in the range 11–67 nm. Hydrogels with gel fraction above 85% and the best swelling properties in different pH solutions were obtained for hydrogels produced with 15 kGy. The hydrogels are stable in the simulated physiological condition of an infected wound and show appropriate moisture retention capability and the water vapor transmission rate up to 272.67 g m−2 day−1, to ensure fast healing. The hydrogels proved to have a significant loading capacity of ibuprofen (IBU), being able to incorporate a therapeutic dose for the treatment of severe pains. Simultaneously, IBU was released up to 25% in the first 2h, having a release maximum after 8 h.
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Mirani A, Maleknia L, Amirabadi A. Glassy carbon electrode modified with hybrid nanofibers containing carbon nanotubes trapped in chitosan for the voltammetric sensing of nicotine at biological pH. NANOTECHNOLOGY 2020; 31:435504. [PMID: 32615549 DOI: 10.1088/1361-6528/aba20e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this paper, nicotine (NIC) was detected by cyclic voltammetry (CV) using a modified glassy carbon (GC) electrode. To do this, the surface of the GC electrode was modified by hybrid nanofiber obtained from the electrospinning method. Hybrid nanofibers were produced through the dispersion of carboxylated multi-walled carbon nanotube (MWCNT-COOH) as an inorganic component in the chitosan (CS) polymer matrix as an organic component. The nanofibers showed unique morphology and high surface area value. With the increase of functionalized carbon nanotube content in the nanofibers, the mean pore diameter and average nanofiber diameter increased. The electrochemical properties of nanofibers towards the sensing of NIC were investigated by the CV method. NIC was irreversibly reduced with the use of a CS/MWCNT-COOH electrode, a controlled process with two protons and two electrons. An oxidation signal at lower potential with higher current was obtained for NIC with the use of a polymer-modified electrode compared to a GC electrode. This was as a result of the electrocatalytic effect of the hybrid nanofibers due to the ability of carbon nanotubes to increase the rate of electron transfer. Under optimum conditions, the oxidation of NIC occurred at 0.82 eV with a pH of 7.4. The linear calibration curve was in the concentration range of 0.1-100 μM NIC (R 2 = 0.9987) with a detection limit of 30 nM. For 100 parallel 10 μM NIC diagnoses for five replicates, 97.2% with a standard deviation of 4.08 maintained their stability over the first cycle. This indicates that the CS/MWCNT-COOH electrode has excellent reproducibility and stability.
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Affiliation(s)
- Abolfazl Mirani
- Department of Biomedical Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran
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Said Al Hoqani HA, Al-Shaqsi N, Hossain MA, Al Sibani MA. Isolation and optimization of the method for industrial production of chitin and chitosan from Omani shrimp shell. Carbohydr Res 2020; 492:108001. [PMID: 32259704 DOI: 10.1016/j.carres.2020.108001] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 04/01/2020] [Accepted: 04/01/2020] [Indexed: 10/24/2022]
Abstract
Chitosan is an organic compound widely used in biomedical and agricultural fields due to its medicinal values. Chitosan is the largest biopolymer after cellulose and it is used as a food supplement as well as a primary health care product. The focus of the present study is to optimize the method for isolation and characterization of chitosan from Omani shrimp shell. The chitosan was isolated chemically from shrimp waste through the chemical processes of demineralization, deproteinization, discoloration and deacetylation. Chitosan isolation was done using hydrochloric acid (HCl), sodium hydroxide (NaOH) and hydrogen peroxide (H2O2) at various concentrations and temperatures during the demineralization, the deproteinization, and the deacetylation processes. A total of twenty-seven samples were run in triplicate and used to isolate chitin from shrimp shell and then different methods of deacetylation were done to extract chitosan. The research was conducted by changing three variables such as the concentration of acid and base and temperature. The coarse powder shrimp waste samples were demineralized by varying the concentrations ranging from 3 to 9% of HCl and at the temperature range between 25 and 55 °C. The demineralized samples were treated with different concentrations of NaOH ranging from 20 to 60% and at the temperature range from 85 to 110 °C to deproteinize the samples. The optimal method for chitin isolation was selected by using FT-NIR spectroscopy. The optimal experimental conditions according to the present study were 3% HCl at 25 °C for an hour demineralization and 50% NaOH at 110 °C for 3 h deproteinization with a yield of 53.313%. Finally, the isolated chitin was decolorized by treatment with 30% H2O2 for 3 h then deacetylatised with 50% NaOH for 15 min. The weight loss was 0.29 gm/5 gm. In conclusion, shrimp waste could be a natural alternative source for the production of chitin. Furthermore, it could be used in medical, pharmaceutical, and biotechnology sectors.
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Affiliation(s)
- Horiya Ali Said Al Hoqani
- School of Pharmacy, College of Pharmacy and Nursing, University of Nizwa, P.O. Box 33, Postal Code 616, Nizwa, Oman
| | - Noura Al-Shaqsi
- Department of Biological Sciences and Chemistry, College of Arts and Science, University of Nizwa, P.O. Box 33, Postal Code 616, Nizwa, Oman
| | - Mohammed Amzad Hossain
- School of Pharmacy, College of Pharmacy and Nursing, University of Nizwa, P.O. Box 33, Postal Code 616, Nizwa, Oman.
| | - Mohammed Abdullah Al Sibani
- Department of Biological Sciences and Chemistry, College of Arts and Science, University of Nizwa, P.O. Box 33, Postal Code 616, Nizwa, Oman
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Qi X, Simsek S, Ohm JB, Chen B, Rao J. Viability of Lactobacillus rhamnosus GG microencapsulated in alginate/chitosan hydrogel particles during storage and simulated gastrointestinal digestion: role of chitosan molecular weight. SOFT MATTER 2020; 16:1877-1887. [PMID: 31994592 DOI: 10.1039/c9sm02387a] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Sodium alginate hydrogel particles coated with cationic biopolymers have been shown to be one of the promising means for probiotic encapsulation and protection. In this study, we aimed to systematically explore the effect of molecular weight of chitosan coating on the functional performance of sodium alginate hydrogel particles for improving the viability of Lactobacillus rhamnosus GG (LGG). We first electrostatically deposited three different molecular weights of chitosan coatings, i.e., chitosan oligosaccharide (COS), low molecular weight chitosan (LMW-chitosan) and medium molecular weight chitosan (MMW-chitosan) on sodium alginate hydrogel particles. Both SEM and FTIR results indicated that chitosan was successfully deposited onto the surface of the hydrogel particles. We then evaluated the effect of chitosan MW on the viability of LGG encapsulated in the hydrogels during long-term storage and simulated gastrointestinal digestion. Among them, the hydrogel particles coated with COS prevented the viability loss of LLG during long-term storage at different temperatures (4, 25 and 37 °C). However, we did not find any improvement in the viability of the encapsulated LGG by all three chitosan coatings during simulated digestion.
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Affiliation(s)
- Xiaoxi Qi
- Food Ingredients and Biopolymers Laboratory, Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, USA.
| | - Senay Simsek
- Food Ingredients and Biopolymers Laboratory, Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, USA.
| | - Jae-Bom Ohm
- Edward T. Schafer Agricultural Research Center, Cereal Crops Research Unit, Hard Spring and Durum Wheat Quality Lab, USDA-ARS, Fargo, North Dakota 58108, USA
| | - Bingcan Chen
- Food Ingredients and Biopolymers Laboratory, Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, USA.
| | - Jiajia Rao
- Food Ingredients and Biopolymers Laboratory, Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, USA.
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Phan TTV, Nguyen VT, Ahn SH, Oh J. Chitosan-mediated facile green synthesis of size-controllable gold nanostars for effective photothermal therapy and photoacoustic imaging. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.06.023] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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41
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Gallic Acid-Chitosan Conjugate Inhibits the Formation of Calcium Oxalate Crystals. Molecules 2019; 24:molecules24112074. [PMID: 31151328 PMCID: PMC6600518 DOI: 10.3390/molecules24112074] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/19/2019] [Accepted: 05/22/2019] [Indexed: 11/23/2022] Open
Abstract
It has recently been shown that chitosan (Chit) induces the formation of calcium oxalate (CaOx) crystals, which are mainly responsible for the appearance of kidney stones, and this might limit the use of Chit in vivo. Here, Chit was conjugated with gallic acid (Chit-Gal) to decrease the formation of CaOx crystal. This conjugation was confirmed by FTIR and NMR analyses. Chit-Gal contains 10.2 ± 1.5 mg GA per g of Chit. Compared to the control group, Chit increased the number of crystals by six-fold, mainly in the number of monohydrated CaOx crystals, which are the most harmful CaOx crystals. In addition, Chit increased the zeta potential (ζ) of CaOx crystals by three-fold, indicating that Chit was associated with the crystals. These alterations were abolished when Chit-gal was used in these tests. As oxidative stress is related to renal calculus formation, Chit and Chit-Gal were also evaluated as antioxidants using total antioxidant Capacity (TAC), reducing power, ferrous chelation, and copper chelation tests. Chit-gal was more efficient antioxidant agent in TAC (2 times), in ferrous chelation (90 times), and in reducing Power (5 times) than Chit. Overall, Chit-gal has higher antioxidant activity than Chit, does not induce the formation of CaOx crystals. Thus, Chit-Gal has potential to be used as a chit substitute.
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Haffad H, Zbair M, Anfar Z, Ahsaine HA, Bouhlal H, Khallok H. Removal of reactive red-198 dye using chitosan as an adsorbent: optimization by Central composite design coupled with response surface methodology. TOXIN REV 2019. [DOI: 10.1080/15569543.2019.1584822] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Hassan Haffad
- Laboratooire de Chimie Organique, Bio-organique et Environnement (LCOBE), Faculté des sciences El Jadida, Université Chouaïb Doukkali, El Jadida, Morocco
| | - Mohamed Zbair
- Laboratoire de Catalyse et Corrosion des Matériaux LCCM, Faculté des sciences El Jadida, Université Chouaïb Doukkali, El Jadida, Morocco
| | - Zakaria Anfar
- Laboratoire Matériaux et Environnement LME, Faculté des Sciences, Université Ibn Zohr, Cité Dakhla, Morocco
| | - Hassan Ait Ahsaine
- Laboratoire Matériaux et Environnement LME, Faculté des Sciences, Université Ibn Zohr, Cité Dakhla, Morocco
| | - Hicham Bouhlal
- Laboratoire Chimie Physique, L’Equipe de Thermodynamique, Surface et Catalyse (ETSC), Faculté des sciences El Jadida, Université Chouaïb Doukkali, El Jadida, Morocco
| | - Hamza Khallok
- Team of Energy, Materials and Environment, Faculté des sciences El Jadida, Université Chouaïb Doukkali, El Jadida, Morocco
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Chitosan as a stabilizer and size-control agent for synthesis of porous flower-shaped palladium nanoparticles and their applications on photo-based therapies. Carbohydr Polym 2019; 205:340-352. [DOI: 10.1016/j.carbpol.2018.10.062] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 09/19/2018] [Accepted: 10/21/2018] [Indexed: 12/19/2022]
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The evaluation of antioxidant and antifungal properties of 6-amino-6-deoxychitosan in vitro. Int J Biol Macromol 2018; 107:595-603. [DOI: 10.1016/j.ijbiomac.2017.09.028] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 08/22/2017] [Accepted: 09/12/2017] [Indexed: 01/23/2023]
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Liang J, Yan H, Yang HJ, Kim HW, Wan X, Lee J, Ko S. Synthesis and controlled-release properties of chitosan/β-Lactoglobulin nanoparticles as carriers for oral administration of epigallocatechin gallate. Food Sci Biotechnol 2016; 25:1583-1590. [PMID: 30263448 DOI: 10.1007/s10068-016-0244-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 10/11/2016] [Accepted: 10/11/2016] [Indexed: 11/26/2022] Open
Abstract
A nano-sized double-walled carrier composed of chitosan and β-lactoglobulin (β-Lg) for oral administration of epigallocatechin gallate (EGCG) was developed to achieve a prolonged release of EGCG in the gastrointestinal tract. Carboxymethyl chitosan (CMC) solution was added dropwise to chitosan hydrochloride (CHC) containing EGCG to form a primary coating by ionic complexation. Subsequently, β-Lg was added to create a secondary layer by ionic gelation. The obtained EGCG-loaded chitosan/β-Lg nanoparticles had sizes between 100 and 500 nm and zeta potentials ranging from 10 to 35mV. FT-IR spectroscopy revealed a high number of hydrogen-bonding sites in the nanoparticles, which could incorporate EGCG, resulting in high encapsulation efficiency. EGCG incorporated in the primary coating was released slowly over time by diffusion from the swollen CMC-CHC matrix after the outer layer of β-Lg was degraded in the intestinal fluid. The sustained-release property makes chitosan/β-Lg nanoparticles an attractive candidate for effective delivery of EGCG.
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Affiliation(s)
- Jin Liang
- 1State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036 China
- 2Department of Food Science and Biotechnology, Sejong University, Seoul, 05006 Korea
| | - Hua Yan
- 1State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036 China
| | - Han-Joo Yang
- 2Department of Food Science and Biotechnology, Sejong University, Seoul, 05006 Korea
| | - Hye Won Kim
- 2Department of Food Science and Biotechnology, Sejong University, Seoul, 05006 Korea
| | - Xiaochun Wan
- 1State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036 China
| | - Jinhee Lee
- 3Department of Food Science and Biotechnology, Cha University, Seongnam, Gyeonggi, 13488 Korea
| | - Sanghoon Ko
- 2Department of Food Science and Biotechnology, Sejong University, Seoul, 05006 Korea
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Shanmugam A, Kathiresan K, Nayak L. Preparation, characterization and antibacterial activity of chitosan and phosphorylated chitosan from cuttlebone of Sepia kobiensis (Hoyle, 1885). ACTA ACUST UNITED AC 2015; 9:25-30. [PMID: 28507912 PMCID: PMC5394631 DOI: 10.1016/j.btre.2015.10.007] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 09/24/2015] [Accepted: 10/17/2015] [Indexed: 11/25/2022]
Abstract
Chitosan is a commercially available derivative of
chitin that has been extensively studied for its antimicrobial properties. In
order to improve the water solubility and its biological activity, the chemical
modification or derivatisation is attempted. In the present investigation, the
chitosan prepared from the cuttlebone of Sepia kobiensis
was being chemically modified by reacting it with orthophosphoric acid so as to
obtain phosphorylated chitosan. Then the chitosan and phosphorylated chitosan
were structurally characterized through FT-IR spectroscopy. Further the
antibacterial activity of chitosan and phosphorylated chitosan was tested
against clinically isolated human pathogens (Gram-positive:
Streptococcus sp., Streptococcus
pneumoniae and Staphylococcus aureus and
Gram-negative: Escherichia coli, Vibrio
cholerae, V. alginolyticus,
Vibrio parahaemolyticus, Pseudomonas
aeruginosa, Klebsiella pneumoniae,
Salmonella sp. and Proteus
vulgaris) by well diffusion method and the Minimum Inhibitory
Concentration (MIC) was also calculated. The results of the present study
suggests that the chitosan and phosphorylated chitosan has concentration
dependent antibacterial activity with variation against several pathogenic human
pathogenic bacterial strains which indicates their possible use as antibacterial
agents.
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Affiliation(s)
- Annaian Shanmugam
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, Tamil Nadu 608 502, India
| | - Kandasamy Kathiresan
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, Tamil Nadu 608 502, India
| | - Lakshman Nayak
- Department of Marine Sciences, Berhampur University, Berhampur, Odisha 760007, India
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Persian gulf β-chitin extraction from sepia pharaonis sp. cuttlebone and preparation of its derivatives. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.bcdf.2015.09.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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48
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Does the use of chitosan contribute to oxalate kidney stone formation? Mar Drugs 2014; 13:141-58. [PMID: 25551781 PMCID: PMC4306929 DOI: 10.3390/md13010141] [Citation(s) in RCA: 461] [Impact Index Per Article: 46.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 10/30/2014] [Indexed: 11/30/2022] Open
Abstract
Chitosan is widely used in the biomedical field due its chemical and pharmacological properties. However, intake of chitosan results in renal tissue accumulation of chitosan and promotes an increase in calcium excretion. On the other hand, the effect of chitosan on the formation of calcium oxalate crystals (CaOx) has not been described. In this work, we evaluated the antioxidant capacity of chitosan and its interference in the formation of CaOx crystals in vitro. Here, the chitosan obtained commercially had its identity confirmed by nuclear magnetic resonance and infrared spectroscopy. In several tests, this chitosan showed low or no antioxidant activity. However, it also showed excellent copper-chelating activity. In vitro, chitosan acted as an inducer mainly of monohydrate CaOx crystal formation, which is more prevalent in patients with urolithiasis. We also observed that chitosan modifies the morphology and size of these crystals, as well as changes the surface charge of the crystals, making them even more positive, which can facilitate the interaction of these crystals with renal cells. Chitosan greatly influences the formation of crystals in vitro, and in vivo analyses should be conducted to assess the risk of using chitosan.
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Extraction, characterization and antioxidant property of chitosan from cuttlebone Sepia kobiensis (Hoyle 1885). Int J Biol Macromol 2014; 64:202-12. [DOI: 10.1016/j.ijbiomac.2013.12.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 11/28/2013] [Accepted: 12/03/2013] [Indexed: 11/20/2022]
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50
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Sulfation of β-chitosan and evaluation of biological activity from gladius of Sepioteuthis lessoniana. Int J Biol Macromol 2013; 62:336-40. [DOI: 10.1016/j.ijbiomac.2013.09.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 08/21/2013] [Accepted: 09/14/2013] [Indexed: 11/23/2022]
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