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Zhang L, Yang J, Ding C, Sun S, Zhang S, Ding Q, Zhao T, Liu W. Application of polysaccharide-based crosslinking agents based on schiff base linkages for biomedical scaffolds. Carbohydr Polym 2024; 345:122585. [PMID: 39227125 DOI: 10.1016/j.carbpol.2024.122585] [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: 01/23/2024] [Revised: 08/04/2024] [Accepted: 08/06/2024] [Indexed: 09/05/2024]
Abstract
Chemical crosslinking is a method widely used to enhance the mechanical strength of biopolymer-based scaffolds. Polysaccharides are natural and biodegradable carbohydrate polymers that can act as crosslinking agents to promote the formation of scaffolds. Compared to synthetic crosslinking agents, Polysaccharide-based crosslinking agents have better biocompatibility for cell adhesion and growth. Traditional Chinese medicine has special therapeutic effects on various diseases and is rich in various bioactive ingredients. Among them, polysaccharides have immune regulatory, antioxidant, and anti-inflammation effects, which allow them to not only act as crosslinking agents but endow the scaffold with greater bioactivity. This article focuses on the latest developments of polysaccharide-based crosslinking agents for biomedical scaffolds, including hyaluronic acid, chondroitin sulfate, dextran, alginate, cellulose, gum polysaccharides, and traditional Chinese medicine polysaccharides. Also, we provide a summary and prospects on the research of polysaccharide-based crosslinking agents.
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Affiliation(s)
- Lifeng Zhang
- College of traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Jiali Yang
- College of traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Chuanbo Ding
- College of traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132101, China
| | - Shuwen Sun
- College of traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Shuai Zhang
- College of traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Qiteng Ding
- College of traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Ting Zhao
- College of traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132101, China.
| | - Wencong Liu
- School of Food and Pharmaceutical Engineering, Wuzhou University, Wuzhou 543002, China.
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2
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Yang Y, Xie ZH, Wang H, Yang SR, Wang T, He CS, Lai B. Ecological risk assessment methods for oxidative by-products in the oxidation degradation process of emerging pollutants: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 950:175401. [PMID: 39127198 DOI: 10.1016/j.scitotenv.2024.175401] [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: 04/16/2024] [Revised: 08/05/2024] [Accepted: 08/07/2024] [Indexed: 08/12/2024]
Abstract
The inherent toxicity and persistence of emerging contaminants such as antibiotics and endocrine disruptors pose substantial threats to the environment. Advanced oxidation processes (AOPs) employed for oxidative degradation could yield toxic oxidation by-products (OBPs), including organic acids and aromatic hydrocarbons. Despite their typically low concentrations, OBPs require scrutiny owing to their potential health risks. Although effective assessment methodologies are available, a comprehensive review focusing on the ecological and environmental effects of these pollutants is lacking. This study offers a succinct overview of existing ecotoxicological exposure assessments for emerging organic pollutants. Further, it encapsulates principal dose-response assessment techniques and provides a comparative analysis of several methods. The straightforward assessment factor method evaluates risk based on exposure and species sensitivity and is suitable for preliminary assessments of single pollutants; Species Sensitivity Distribution (SSD) compares species sensitivities to OBPs, emphasizing the importance of species-specific toxicological responses; microcosm and mesocosm methods simulate and predict the effects of OBPs on aquatic life by considering environmental diversity and biological community structures and are ideal for assessing the toxicity of multiple OBPs; the ecological risk analysis model employs mathematical and probabilistic approaches to comprehensively and accurately assess exposures and effects, accounting for the complexities and uncertainties inherent in ecotoxicological evaluations. Different risk characterization techniques are outlined in this study, including the risk quotient (RQ), which is ideal for quantifying and comparing risks; probabilistic ecological risk assessment (PERA), suitable for managing significant uncertainty; and the Environmental Pollution Index (EPI), the preferred method for quantitative assessment of OBP pollution levels. The merits and limitations of each of these quantitative assessment tools are evaluated, providing a comprehensive view of their applications in risk analysis. In addition, pressing contemporary challenges are identified and trajectories and pivotal issues suggested for future research.
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Affiliation(s)
- Yufei Yang
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - Zhi-Hui Xie
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Hao Wang
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - Shu-Run Yang
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Tingting Wang
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - Chuan-Shu He
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China.
| | - Bo Lai
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
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3
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Sun Y, Sha Y, Yang J, Fu H, Hou X, Li Z, Xie Y, Wang G. Collagen is crucial target protein for scleral remodeling and biomechanical change in myopia progression and control. Heliyon 2024; 10:e35313. [PMID: 39170348 PMCID: PMC11336648 DOI: 10.1016/j.heliyon.2024.e35313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 07/25/2024] [Accepted: 07/26/2024] [Indexed: 08/23/2024] Open
Abstract
In recent decades, the prevalence of myopia has been on the rise globally, attributed to changes in living environments and lifestyles. This increase in myopia has become a significant public health concern. High myopia can result in thinning of the sclera and localized ectasia of the posterior sclera, which is the primary risk factor for various eye diseases and significantly impacts patients' quality of life. Therefore, it is essential to explore effective prevention strategies and programs for individuals with myopia. Collagen serves as the principal molecule in the extracellular matrix (ECM) of scleral tissue, consisting of irregular collagen fibrils. Collagen plays a crucial role in myopia progression and control. During the development of myopia, the sclera undergoes a thinning process which is primarily influenced by collagen expression decreased and remodeled, thus leading to a decrease in its biomechanical properties. Improving collagen expression and promoting collagen crosslinking can slow down the progression of myopia. In light of the above, improving collagen expression or enhancing the mechanical properties of collagen fibers via medication or surgery represents a promising approach to control myopia.
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Affiliation(s)
- Yun Sun
- School of Life Science and Technology, Shandong Second Medical University, Weifang, 261053, China
| | - Yaru Sha
- School of Life Science and Technology, Shandong Second Medical University, Weifang, 261053, China
| | - Jing Yang
- School of Life Science and Technology, Shandong Second Medical University, Weifang, 261053, China
| | - Hong Fu
- School of Life Science and Technology, Shandong Second Medical University, Weifang, 261053, China
| | - Xinyu Hou
- School of Life Science and Technology, Shandong Second Medical University, Weifang, 261053, China
| | - Zhuozheng Li
- School of Life Science and Technology, Shandong Second Medical University, Weifang, 261053, China
| | - Yongfang Xie
- School of Life Science and Technology, Shandong Second Medical University, Weifang, 261053, China
| | - Guohui Wang
- School of Life Science and Technology, Shandong Second Medical University, Weifang, 261053, China
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4
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He R, Zhu N, Chen X, Liang Q, Yao G, Tian Q, Zhou F, Ding X. Experimental evidence of effective disinfectant to control the transmission of Micropterus salmoides rhabdovirus. JOURNAL OF FISH DISEASES 2024; 47:e13891. [PMID: 37990596 DOI: 10.1111/jfd.13891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/02/2023] [Accepted: 11/06/2023] [Indexed: 11/23/2023]
Abstract
Micropterus salmoides rhabdovirus (MSRV) is a significant pathogen that causes high morbidity and mortality in largemouth bass, leading to enormous economic losses for largemouth bass aquaculture in China. The aim of this study was to investigate the efficacy of four disinfectants (potassium permanganate, glutaraldehyde, trichloroisocyanuric acid and povidone iodine) on MSRV, to control the infection and transmission of MSRV in largemouth bass aquaculture. The disinfectants were tested at different concentrations (5, 25, 50, 100 and 500 mg/L) prepared with distilled water for 30 min contact time, and the viral nucleic acid was quantified using qPCR and the infectivity was tested by challenge experiment. Potassium permanganate at 5-500 mg/L, glutaraldehyde at 500 mg/L, trichloroisocyanuric acid at 50-500 mg/L and povidone iodine at 500 mg/L concentration could effectively decrease the virus nucleic acid, and the survival rate of largemouth bass juveniles after challenge experiment increased significantly from 3.7% ± 6.41% to 33.33 ± 11.11% - 100%. Moreover, the minimum effective time of 5 mg/L potassium permanganate was further studied at 2, 5, 10 and 20 min contact time. The viral nucleic acid decreased significantly at 5-20 min exposure time, and the survival rate increased significantly from 7.41% ± 6.41% to 77.78 ± 11.11% - 100%. The median lethal concentration (LC50 ) values of potassium permanganate were 10.64, 6.92 and 3.7 mg/L at 24, 48 and 96 h, respectively. Potassium permanganate could be used for the control of MSRV in the cultivation process; the recommended concentration is 5 mg/L and application time should be less than 24 h. The results could be applied to provide a method to control the infection and transmission of MSRV in water, and improve the health status of largemouth bass.
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Affiliation(s)
- Runzhen He
- Zhejiang Fisheries Technical Extension Center, Hangzhou, China
| | - Ningyu Zhu
- Zhejiang Fisheries Technical Extension Center, Hangzhou, China
| | - Xiaoming Chen
- Zhejiang Fisheries Technical Extension Center, Hangzhou, China
| | - Qianrong Liang
- Zhejiang Fisheries Technical Extension Center, Hangzhou, China
| | - Gaohua Yao
- Zhejiang Fisheries Technical Extension Center, Hangzhou, China
| | - Quanquan Tian
- Zhejiang Fisheries Technical Extension Center, Hangzhou, China
| | - Fan Zhou
- Zhejiang Fisheries Technical Extension Center, Hangzhou, China
| | - Xueyan Ding
- Zhejiang Fisheries Technical Extension Center, Hangzhou, China
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Pelin IM, Popescu I, Calin M, Rebleanu D, Voicu G, Ionita D, Zaharia MM, Constantin M, Fundueanu G. Tri-Component Hydrogel as Template for Nanocrystalline Hydroxyapatite Deposition Using Alternate Soaking Method for Bone Tissue Engineering Applications. Gels 2023; 9:905. [PMID: 37998995 PMCID: PMC10671408 DOI: 10.3390/gels9110905] [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: 09/27/2023] [Revised: 11/08/2023] [Accepted: 11/15/2023] [Indexed: 11/25/2023] Open
Abstract
Composite hydrogels containing apatite-like particles can act as scaffolds for osteoblast proliferation, with applications in bone tissue engineering. In this respect, porous biocompatible hydrogels were obtained from chitosan, oxidized pullulan, and PVA in different ratios. The stability of the hydrogels was ensured both by covalent bonds between aldehyde groups of oxidized pullulan and free amino groups of chitosan, and by physical bonds formed during freeze-thaw cycles and lyophilization. The deposition of calcium phosphates was performed by alternate soaking of the porous hydrogels into solutions with calcium and phosphate ions, assuring a basic pH required for hydroxyapatite formation. The mineralized hydrogels were characterized using FTIR spectroscopy, scanning electron microscopy, X-ray diffraction, and thermogravimetric analysis, showing that inorganic particles containing between 80 and 92% hydroxyapatite were deposited in a high amount on the pore walls of the polymeric matrix. The composition of the organic matrix influenced the crystallization of calcium phosphates and the mechanical properties of the composite hydrogels. In vitro biological tests showed that mineralized hydrogels support the proliferation of MG-63 osteoblast-like cells to a greater extent compared to pristine hydrogels.
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Affiliation(s)
- Irina Mihaela Pelin
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487 Iasi, Romania; (I.M.P.); (D.I.); (M.-M.Z.); (G.F.)
| | - Irina Popescu
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487 Iasi, Romania; (I.M.P.); (D.I.); (M.-M.Z.); (G.F.)
| | - Manuela Calin
- Institute of Cellular Biology and Pathology “Nicolae Simionescu” of the Romanian Academy, 050568 Bucharest, Romania; (M.C.); (D.R.); (G.V.)
| | - Daniela Rebleanu
- Institute of Cellular Biology and Pathology “Nicolae Simionescu” of the Romanian Academy, 050568 Bucharest, Romania; (M.C.); (D.R.); (G.V.)
| | - Geanina Voicu
- Institute of Cellular Biology and Pathology “Nicolae Simionescu” of the Romanian Academy, 050568 Bucharest, Romania; (M.C.); (D.R.); (G.V.)
| | - Daniela Ionita
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487 Iasi, Romania; (I.M.P.); (D.I.); (M.-M.Z.); (G.F.)
| | - Marius-Mihai Zaharia
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487 Iasi, Romania; (I.M.P.); (D.I.); (M.-M.Z.); (G.F.)
| | - Marieta Constantin
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487 Iasi, Romania; (I.M.P.); (D.I.); (M.-M.Z.); (G.F.)
| | - Gheorghe Fundueanu
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487 Iasi, Romania; (I.M.P.); (D.I.); (M.-M.Z.); (G.F.)
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6
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Bagdasarian IA, Tonmoy TI, Park BH, Morgan JT. In vitro formation and extended culture of highly metabolically active and contractile tissues. PLoS One 2023; 18:e0293609. [PMID: 37910543 PMCID: PMC10619834 DOI: 10.1371/journal.pone.0293609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 10/16/2023] [Indexed: 11/03/2023] Open
Abstract
3D cell culture models have gained popularity in recent years as an alternative to animal and 2D cell culture models for pharmaceutical testing and disease modeling. Polydimethylsiloxane (PDMS) is a cost-effective and accessible molding material for 3D cultures; however, routine PDMS molding may not be appropriate for extended culture of contractile and metabolically active tissues. Failures can include loss of culture adhesion to the PDMS mold and limited culture surfaces for nutrient and waste diffusion. In this study, we evaluated PDMS molding materials and surface treatments for highly contractile and metabolically active 3D cell cultures. PDMS functionalized with polydopamine allowed for extended culture duration (14.8 ± 3.97 days) when compared to polyethylamine/glutaraldehyde functionalization (6.94 ± 2.74 days); Additionally, porous PDMS extended culture duration (16.7 ± 3.51 days) compared to smooth PDMS (6.33 ± 2.05 days) after treatment with TGF-β2 to increase culture contraction. Porous PDMS additionally allowed for large (13 mm tall × 8 mm diameter) constructs to be fed by diffusion through the mold, resulting in increased cell density (0.0210 ± 0.0049 mean nuclear fraction) compared to controls (0.0045 ± 0.0016 mean nuclear fraction). As a practical demonstration of the flexibility of porous PDMS, we engineered a vascular bioartificial muscle model (VBAM) and demonstrated extended culture of VBAMs anchored with porous PDMS posts. Using this model, we assessed the effect of feeding frequency on VBAM cellularity. Feeding 3×/week significantly increased nuclear fraction at multiple tissue depths relative to 2×/day. VBAM maturation was similarly improved in 3×/week feeding as measured by nuclear alignment (23.49° ± 3.644) and nuclear aspect ratio (2.274 ± 0.0643) relative to 2x/day (35.93° ± 2.942) and (1.371 ± 0.1127), respectively. The described techniques are designed to be simple and easy to implement with minimal training or expense, improving access to dense and/or metabolically active 3D cell culture models.
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Affiliation(s)
- Isabella A. Bagdasarian
- Department of Bioengineering, University of California, Riverside, CA, United States of America
| | - Thamidul Islam Tonmoy
- Department of Bioengineering, University of California, Riverside, CA, United States of America
| | - B. Hyle Park
- Department of Bioengineering, University of California, Riverside, CA, United States of America
| | - Joshua T. Morgan
- Department of Bioengineering, University of California, Riverside, CA, United States of America
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Pourmadadi M, Yazdian F, Koulivand A, Rahmani E. Green synthesized polyvinylpyrrolidone/titanium dioxide hydrogel nanocomposite modified with agarose macromolecules for sustained and pH-responsive release of anticancer drug. Int J Biol Macromol 2023; 240:124345. [PMID: 37054860 DOI: 10.1016/j.ijbiomac.2023.124345] [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: 12/14/2022] [Revised: 03/28/2023] [Accepted: 04/02/2023] [Indexed: 04/15/2023]
Abstract
Cancer, as one of the most challenging diseases of the last century, has a significant number of patients and deaths every year. Various strategies have been explored for the treatment of cancer. Chemotherapy is one of the methods of treating cancer. Doxorubicin is one of the compounds used in chemotherapy to kill cancer cells. Due to their unique properties and low toxicity, metal oxide nanoparticles are effective in combination therapy and increase the effectiveness of anti-cancer compounds. The limited in vivo circulatory period, poor solubility, and inadequate penetration of doxorubicin (DOX) restrict its use in cancer treatment, notwithstanding its attractive characteristics. It is possible to circumvent some of the difficulties in cancer therapy by using green synthesized pH-responsive nanocomposite consisting of polyvinylpyrrolidone (PVP), titanium dioxide (TiO2) modified with agarose (Ag) macromolecules. TiO2 incorporation into the PVP-Ag nanocomposite resulted in limited increased loading and encapsulation efficiencies from 41 % to 47 % and 84 % to 88.5 %, respectively. DOX diffusion among normal cells is prevented by the PVP-Ag-TiO2 nanocarrier at pH = 7.4, though the acidic intracellular microenvironments activate the PVP-Ag-TiO2 nanocarrier at pH = 5.4. Characterization of the nanocarrier was performed using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectrophotometry, field emission scanning electron microscopy (FE-SEM), dynamic light scattering (DLS), and zeta potential. The average particle size and the zeta potential of the particles showed values of 349.8 nm and +57 mV, respectively. In vitro release after 96 h showed a release rate of 92 % at pH 7.4 and a release rate of 96 % at pH 5.4. Meanwhile, the initial release after 24 h was 42 % for pH 7.4 and 76 % for pH 5.4. As shown by an MTT analysis on MCF-7 cells, the toxicity of DOX-loaded PVP-Ag-TiO2 nanocomposite was substantially greater than that of unbound DOX and PVP-Ag-TiO2. After integrating TiO2 nanomaterials into the PVP-Ag-DOX nanocarrier, flow cytometry data showed a greater stimulation of cell death. These data indicate that the DOX-loaded nanocomposite is a suitable alternative for drug delivery systems.
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Affiliation(s)
- Mehrab Pourmadadi
- Department of Biotechnology, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Fatemeh Yazdian
- Department of Life Science Engineering, Faculty of New Science and Technologies, University of Tehran, Tehran, Iran.
| | - Ali Koulivand
- Department of Life Science Engineering, Faculty of New Science and Technologies, University of Tehran, Tehran, Iran
| | - Erfan Rahmani
- Department of Biomedical Engineering, University of Delaware, Newark, DE, United States
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Blilid S, Boundor M, Katir N, El Achaby M, Lahcini M, Majoral JP, Bousmina M, El Kadib A. Expanding Chitosan Reticular Chemistry Using Multifunctional and Thermally Stable Phosphorus-Containing Dendrimers. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Sara Blilid
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
- IMED-Lab, Faculty of Sciences and Technologies, Cadi Ayyad University, Avenue Abdelkrim Elkhattabi, B.P. 549, 40000 Marrakech, Morocco
| | - Mohamed Boundor
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
| | - Nadia Katir
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
| | - Mounir El Achaby
- Mohammed VI Polytechnic University (UM6P), Lot 660−Hay Moulay Rachid, 43150 Benguerir, Morocco
| | - Mohammed Lahcini
- IMED-Lab, Faculty of Sciences and Technologies, Cadi Ayyad University, Avenue Abdelkrim Elkhattabi, B.P. 549, 40000 Marrakech, Morocco
- Mohammed VI Polytechnic University (UM6P), Lot 660−Hay Moulay Rachid, 43150 Benguerir, Morocco
| | - Jean Pierre Majoral
- Laboratoire de Chimie de Coordination (LCC), CNRS, 205 Route de Narbonne, 31077 Toulouse, France
| | - Mosto Bousmina
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
| | - Abdelkrim El Kadib
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
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9
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Large-Scale Cultivation of Magnetotactic Bacteria and the Optimism for Sustainable and Cheap Approaches in Nanotechnology. Mar Drugs 2023; 21:md21020060. [PMID: 36827100 PMCID: PMC9961000 DOI: 10.3390/md21020060] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 01/21/2023] Open
Abstract
Magnetotactic bacteria (MTB), a diverse group of marine and freshwater microorganisms, have attracted the scientific community's attention since their discovery. These bacteria biomineralize ferrimagnetic nanocrystals, the magnetosomes, or biological magnetic nanoparticles (BMNs), in a single or multiple chain(s) within the cell. As a result, cells experience an optimized magnetic dipolar moment responsible for a passive alignment along the lines of the geomagnetic field. Advances in MTB cultivation and BMN isolation have contributed to the expansion of the biotechnological potential of MTB in recent decades. Several studies with mass-cultured MTB expanded the possibilities of using purified nanocrystals and whole cells in nano- and biotechnology. Freshwater MTB were primarily investigated in scaling up processes for the production of BMNs. However, marine MTB have the potential to overcome freshwater species applications due to the putative high efficiency of their BMNs in capturing molecules. Regarding the use of MTB or BMNs in different approaches, the application of BMNs in biomedicine remains the focus of most studies, but their application is not restricted to this field. In recent years, environment monitoring and recovery, engineering applications, wastewater treatment, and industrial processes have benefited from MTB-based biotechnologies. This review explores the advances in MTB large-scale cultivation and the consequent development of innovative tools or processes.
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10
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Muñana-González S, Veloso-Fernández A, Ruiz-Rubio L, Pérez-Álvarez L, Vilas-Vilela JL. Covalent Cross-Linking as a Strategy to Prepare Water-Dispersible Chitosan Nanogels. Polymers (Basel) 2023; 15:polym15020434. [PMID: 36679313 PMCID: PMC9863238 DOI: 10.3390/polym15020434] [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: 12/23/2022] [Revised: 01/08/2023] [Accepted: 01/12/2023] [Indexed: 01/15/2023] Open
Abstract
Due to the environmental problems generated by petroleum derivative polymers as mentioned in Agenda 2030, the use of natural polymers is increasing. Among them, cellulose and chitin are the most widespread biopolymers available in nature. Chitosan, obtained from chitin, is a really good candidate to develop nanocarriers due to its polyelectrolyte nature and ease of chemical modification. However, chitosan presents a solubility drawback in an aqueous medium at physiological pH (pH = 7.4), which restricts its applicability in biomedicine. In this work, nanogels were successfully synthesized from chitosan systems with different water solubilities (chitosan, oligosaccharide chitosan, and quaternized chitosan) using the reverse microemulsion method and polyethylene glycol diacid (PEGBCOOH) as a covalent cross-linking agent. Cross-linking with PEGBCOOH was analyzed by proton nuclear magnetic resonance (1H-NMR), which allowed for nanogels to be prepared whose size and swelling were comparatively studied by transmission electron microscopy (TEM) and dynamic light scattering (DLS) and zeta potential, respectively. The particle size of the swollen nanogels showed a different pH-responsive behavior that decreased for chitosan, increased for oligosaccharide chitosan, and remained constant for quaternized chitosan. Nevertheless, a drastic reduction was observed in all cases in the culture medium. Along the same line, the dispersibility of the synthesized nanogels in different media was comparatively evaluated, showing similar values for the nanogels prepared from soluble chitosans than for water insoluble chitosan as a consequence of the cross-linking with PEGBCOOH. After 6 months of storage of the dried nanogels, the water dispersibility values remained constant in all cases, demonstrating the stabilizing effect of the employed cross-linking agent and the potential use of synthesized nanogels as substrates for drug delivery.
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Affiliation(s)
- Sara Muñana-González
- Grupo de Química Macromolecular (LABQUIMAC), Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, 48940 Leioa, Spain
| | - Antonio Veloso-Fernández
- Grupo de Química Macromolecular (LABQUIMAC), Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, 48940 Leioa, Spain
| | - Leire Ruiz-Rubio
- Grupo de Química Macromolecular (LABQUIMAC), Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, 48940 Leioa, Spain
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| | - Leyre Pérez-Álvarez
- Grupo de Química Macromolecular (LABQUIMAC), Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, 48940 Leioa, Spain
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
- Correspondence: ; Tel.: +34-946-01-2709
| | - José Luis Vilas-Vilela
- Grupo de Química Macromolecular (LABQUIMAC), Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, 48940 Leioa, Spain
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
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11
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Meng Q, Zhong S, Wang J, Gao Y, Cui X. Advances in chitosan-based microcapsules and their applications. Carbohydr Polym 2023; 300:120265. [DOI: 10.1016/j.carbpol.2022.120265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/21/2022] [Accepted: 10/22/2022] [Indexed: 11/11/2022]
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12
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Wang Y, Wu Q, Ren B, Muskhelishvili L, Davis K, Wynne R, Rua D, Cao X. Subacute Pulmonary Toxicity of Glutaraldehyde Aerosols in a Human In Vitro Airway Tissue Model. Int J Mol Sci 2022; 23:12118. [PMID: 36292975 PMCID: PMC9603730 DOI: 10.3390/ijms232012118] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/04/2022] [Accepted: 10/05/2022] [Indexed: 08/24/2023] Open
Abstract
Glutaraldehyde (GA) has been cleared by the Center for Devices and Radiological Health (CDRH) of the Food and Drug Administration (FDA) as a high-level disinfectant for disinfecting heat-sensitive medical equipment in hospitals and healthcare facilities. Inhalation exposure to GA is known to cause respiratory irritation and sensitization in animals and humans. To reproduce some of the known in vivo effects elicited by GA, we used a liquid aerosol exposure system and evaluated the tissue responses in a human in vitro airway epithelial tissue model. The cultures were treated at the air interface with various concentrations of GA aerosols on five consecutive days and changes in tissue function and structure were evaluated at select timepoints during the treatment phase and after a 7-day recovery period. Exposure to GA aerosols caused oxidative stress, inhibition of ciliary beating frequency, aberrant mucin production, and disturbance of cytokine and matrix metalloproteinase secretion, as well as morphological transformation. Some effects, such as those on goblet cells and ciliated cells, persisted following the 7-day recovery period. Of note, the functional and structural disturbances observed in GA-treated cultures resemble those found in ortho-phthaldehyde (OPA)-treated cultures. Furthermore, our in vitro findings on GA toxicity partially and qualitatively mimicked those reported in the animal and human survey studies. Taken together, observations from this study demonstrate that the human air-liquid-interface (ALI) airway tissue model, integrated with an in vitro exposure system that simulates human inhalation exposure, could be used for in vitro-based human hazard identification and the risk characterization of aerosolized chemicals.
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Affiliation(s)
- Yiying Wang
- Division of Genetic and Molecular Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, USA
| | - Qiangen Wu
- Division of Biochemical Toxicology, National Center for Toxicological Research, Jefferson, AR 72079, USA
| | - Baiping Ren
- Division of Genetic and Molecular Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, USA
| | | | - Kelly Davis
- Toxicologic Pathology Associates, Jefferson, AR 72079, USA
| | - Rebecca Wynne
- Division of Genetic and Molecular Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, USA
| | - Diego Rua
- Division of Biology, Chemistry and Materials Science, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, Silver Spring, MD 20993, USA
| | - Xuefei Cao
- Division of Genetic and Molecular Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, USA
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13
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High-Purity Corundum as Support for Affinity Extractions from Complex Samples. SEPARATIONS 2022. [DOI: 10.3390/separations9090252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Nonporous corundum powder, known as an abrasive material in the industry, was functionalized covalently with protein binders to isolate and enrich specific proteins from complex matrices. The materials based on corundum were characterized by TEM, ESEM, BET, DLS, EDS, and zeta potential measurements. The strong Al-O-P bonds between the corundum surface and amino phosphonic acids were used to introduce functional groups for further conjugations. The common crosslinker glutaraldehyde was compared with a hyperbranched polyglycerol (PG) of around 10 kDa. The latter was oxidized with periodate to generate aldehyde groups that can covalently react with the amines of the surface and the amino groups from the protein via a reductive amination process. The amount of bound protein was quantified via aromatic amino acid analysis (AAAA). This work shows that oxidized polyglycerol can be used as an alternative to glutaraldehyde. With polyglycerol, more of the model protein bovine serum albumin (BSA) could be attached to the surface under the same conditions, and lower non-specific binding (NSB) was observed. As a proof of concept, IgG was extracted with protein A from crude human plasma. The purity of the product was examined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). A binding capacity of 1.8 mg IgG per gram of corundum powder was achieved. The advantages of corundum include the very low price, extremely high physical and chemical stability, pressure resistance, favorable binding kinetics, convenient handling, and flexible application.
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14
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Oh HN, Yoo D, Park S, Lee S, Kim WK. Developmental neurotoxicity induced by glutaraldehyde in neuron/astrocyte co-cultured cells and zebrafish. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 242:113891. [PMID: 35868176 DOI: 10.1016/j.ecoenv.2022.113891] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 07/13/2022] [Accepted: 07/14/2022] [Indexed: 06/15/2023]
Abstract
The genotoxicity, development toxicity, carcinogenicity, and acute or chronic toxic effects of glutaraldehyde (GA), particularly during occupational exposure through its use as a fixative, disinfectant, and preservative, are well-documented but its effects on neurotoxicity have not been investigated. We performed in vitro and in vivo studies to examine the developmental neurotoxicity (DNT) of GA. Neurite outgrowth was examined in an in vitro co-culture model consisting of SH-SY5Y human neuroblastoma cells and human astrocytes. Cell Counting Kit-8, lactate dehydrogenase assay, and high-content screening revealed that GA significantly inhibited neurite outgrowth at non-cytotoxic concentration. Further studies showed that GA upregulated the mRNA expression of the astrocyte markers GFAP and S100β and downregulated the expression of the neurodevelopmental genes Nestin, βIII-tubulin, GAP43, and MAP2. Furthermore, in vivo zebrafish embryo toxicity tests explored the effects of GA on neural morphogenesis. GA adversely affected the early development of zebrafish embryos, resulting in decreased survival, irregular hatching, and reduced heart rate in a time- and concentration-dependent manner. Furthermore, the width of the brain and spinal cord was reduced, and the myelination of Schwann cells and oligodendrocytes was decreased by GA in transgenic zebrafish lines. These data suggest that GAs have potential DNT in vitro and in vivo, highlighting the need for caution regarding the neurotoxicity of GA.
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Affiliation(s)
- Ha-Na Oh
- Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon 34114, Republic of Korea.
| | - Donggon Yoo
- Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon 34114, Republic of Korea; Human and Environmental Toxicology, University of Science and Technology, Daejeon 34113, Republic of Korea.
| | - Seungmin Park
- Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon 34114, Republic of Korea; Human and Environmental Toxicology, University of Science and Technology, Daejeon 34113, Republic of Korea.
| | - Sangwoo Lee
- Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon 34114, Republic of Korea.
| | - Woo-Keun Kim
- Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon 34114, Republic of Korea; Human and Environmental Toxicology, University of Science and Technology, Daejeon 34113, Republic of Korea.
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15
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Craciun AM, Morariu S, Marin L. Self-Healing Chitosan Hydrogels: Preparation and Rheological Characterization. Polymers (Basel) 2022; 14:polym14132570. [PMID: 35808616 PMCID: PMC9268889 DOI: 10.3390/polym14132570] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/17/2022] [Accepted: 06/21/2022] [Indexed: 12/16/2022] Open
Abstract
The paper aims at the preparation of chitosan self-healing hydrogels, designed as carriers for local drug delivery by parenteral administration. To this aim, 30 hydrogels were prepared using chitosan and pyridoxal 5-phosphate (P5P), the active form of vitamin B6 as precursors, by varying the ratio of glucosamine units and aldehyde on the one hand and the water content on the other hand. The driving forces of hydrogelation were investigated by nuclear magnetic resonance (NMR), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction, and polarized light microscopy (POM) measurements. NMR technique was also used to investigate the stability of hydrogels over time, and their morphological particularities were assessed by scanning electron microscopy (SEM). Degradability of the hydrogels was studied in media of four different pH, and preliminary self-healing ability was visually established by injection through a syringe needle. In-depth rheological investigation was conducted in order to monitor the storage and loss moduli, linear viscoelastic regime, and structural recovery capacity. It was concluded that chitosan crosslinking with pyridoxal 5-phosphate is a suitable route to reach self-healing hydrogels with a good balance of mechanical properties/structural recovery, good stability over time, and degradability controlled by pH.
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16
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Afghah F, Iyison NB, Nadernezhad A, Midi A, Sen O, Saner Okan B, Culha M, Koc B. 3D Fiber Reinforced Hydrogel Scaffolds by Melt Electrowriting and Gel Casting as a Hybrid Design for Wound Healing. Adv Healthc Mater 2022; 11:e2102068. [PMID: 35120280 DOI: 10.1002/adhm.202102068] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/09/2021] [Indexed: 12/22/2022]
Abstract
Emerging biomanufacturing technologies have revolutionized the field of tissue engineering by offering unprecedented possibilities. Over the past few years, new opportunities arose by combining traditional and novel fabrication techniques, shaping the hybrid designs in biofabrication. One of the potential application fields is skin tissue engineering, in which a combination of traditional principles of wound dressing with advanced biofabrication methods could yield more efficient therapies. In this study, a hybrid design of fiber-reinforced scaffolds combined with gel casting is developed and the efficiency for in vivo wound healing applications is assessed. For this purpose, 3D fiber meshes produced by melt electrowriting are selectively filled with photocrosslinkable gelatin hydrogel matrices loaded with different growth factor carrier microspheres. Additionally, the influence of the inclusion of inorganic bioactive glass particles within the composite fibrous mesh is evaluated. Qualitative evaluation of secondary wound healing criteria and histological analysis shows that hybrid scaffolds containing growth factors and bioactive glass enhances the healing process significantly, compared to the designs merely providing a fiber-reinforced bioactive hydrogel matrix as the wound dressing. This study aims to explore a new application area for melt electrowriting as a powerful tool in fabricating hybrid therapeutic designs for skin tissue engineering.
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Affiliation(s)
- Ferdows Afghah
- Sabanci University Faculty of Engineering and Natural Sciences Istanbul 34956 Turkey
- Sabanci University Nanotechnology Research and Application Center Istanbul 34956 Turkey
| | - Necla Birgul Iyison
- Molecular Biology and Genetics Bogazici University Kuzey Park Istanbul 34342 Turkey
| | - Ali Nadernezhad
- Sabanci University Faculty of Engineering and Natural Sciences Istanbul 34956 Turkey
- Sabanci University Nanotechnology Research and Application Center Istanbul 34956 Turkey
| | - Ahmet Midi
- Department of Pathology Faculty of Medicine, Bahcesehir University Istanbul Turkey
| | - Ozlem Sen
- Department of Genetics and Bioengineering Faculty of Engineering Yeditepe University Istanbul 34755 Turkey
| | - Burcu Saner Okan
- Sabanci University Integrated Manufacturing Technologies Research and Application Center Istanbul 34906 Turkey
| | - Mustafa Culha
- Sabanci University Nanotechnology Research and Application Center Istanbul 34956 Turkey
- Department of Genetics and Bioengineering Faculty of Engineering Yeditepe University Istanbul 34755 Turkey
| | - Bahattin Koc
- Sabanci University Faculty of Engineering and Natural Sciences Istanbul 34956 Turkey
- Sabanci University Nanotechnology Research and Application Center Istanbul 34956 Turkey
- Sabanci University Integrated Manufacturing Technologies Research and Application Center Istanbul 34906 Turkey
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17
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Mulinari J, Ambrosi A, Innocentini MDDM, Feng Y, Li Q, Di Luccio M, Hotza D, Oliveira JV. Lipase immobilization on alumina membranes using a traditional and a nature-inspired method for active degradation of oil fouling. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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18
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Liu S, Zhang H, Ahlfeld T, Kilian D, Liu Y, Gelinsky M, Hu Q. Evaluation of different crosslinking methods in altering the properties of extrusion-printed chitosan-based multi-material hydrogel composites. Biodes Manuf 2022. [DOI: 10.1007/s42242-022-00194-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AbstractThree-dimensional printing technologies exhibit tremendous potential in the advancing fields of tissue engineering and regenerative medicine due to the precise spatial control over depositing the biomaterial. Despite their widespread utilization and numerous advantages, the development of suitable novel biomaterials for extrusion-based 3D printing of scaffolds that support cell attachment, proliferation, and vascularization remains a challenge. Multi-material composite hydrogels present incredible potential in this field. Thus, in this work, a multi-material composite hydrogel with a promising formulation of chitosan/gelatin functionalized with egg white was developed, which provides good printability and shape fidelity. In addition, a series of comparative analyses of different crosslinking agents and processes based on tripolyphosphate (TPP), genipin (GP), and glutaraldehyde (GTA) were investigated and compared to select the ideal crosslinking strategy to enhance the physicochemical and biological properties of the fabricated scaffolds. All of the results indicate that the composite hydrogel and the resulting scaffolds utilizing TPP crosslinking have great potential in tissue engineering, especially for supporting neo-vessel growth into the scaffold and promoting angiogenesis within engineered tissues.
Graphic abstract
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19
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Toughening robocast chitosan/biphasic calcium phosphate composite scaffolds with silk fibroin: Tuning printable inks and scaffold structure for bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2022; 134:112690. [DOI: 10.1016/j.msec.2022.112690] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 12/21/2021] [Accepted: 01/28/2022] [Indexed: 11/17/2022]
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20
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Augustyn W, Chruściel A, Hreczuch W, Kalka J, Tarka P, Kierat W. Inactivation of Spores and Vegetative Forms of Clostridioides difficile by Chemical Biocides: Mechanisms of Biocidal Activity, Methods of Evaluation, and Environmental Aspects. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19020750. [PMID: 35055571 PMCID: PMC8775970 DOI: 10.3390/ijerph19020750] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 01/03/2022] [Accepted: 01/04/2022] [Indexed: 12/15/2022]
Abstract
Clostridioides difficile infections (CDIs) are the most common cause of acquired diseases in hospitalized patients. Effective surface disinfection, focused on the inactivation of the spores of this pathogen, is a decisive factor in reducing the number of nosocomial cases of CDI infections. An efficient disinfection procedure is the result of both the properties of the biocidal agent used and the technology of its implementation as well as a reliable, experimental methodology for assessing the activity of the biocidal active substance based on laboratory models that adequately represent real clinical conditions. This study reviews the state of knowledge regarding the properties and biochemical basis of the action mechanisms of sporicidal substances, with emphasis on chlorine dioxide (ClO2). Among the analyzed biocides, in addition to ClO2, active chlorine, hydrogen peroxide, peracetic acid, and glutaraldehyde were characterized. Due to the relatively high sporicidal effectiveness and effective control of bacterial biofilm, as well as safety in a health and environmental context, the use of ClO2 is an attractive alternative in the control of nosocomial infections of CD etiology. In terms of the methods of assessing the biocidal effectiveness, suspension and carrier standards are discussed.
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Affiliation(s)
- Weronika Augustyn
- MEXEO-Wiesław Hreczuch, Energetyków 9, 47-225 Kędzierzyn-Koźle, Poland; (W.A.); (W.H.)
- Environmental Biotechnology Department, Silesian University of Technology, Faculty of Power and Environmental Engineering, 44-100 Gliwice, Poland;
| | - Arkadiusz Chruściel
- MEXEO-Wiesław Hreczuch, Energetyków 9, 47-225 Kędzierzyn-Koźle, Poland; (W.A.); (W.H.)
- Correspondence:
| | - Wiesław Hreczuch
- MEXEO-Wiesław Hreczuch, Energetyków 9, 47-225 Kędzierzyn-Koźle, Poland; (W.A.); (W.H.)
| | - Joanna Kalka
- Environmental Biotechnology Department, Silesian University of Technology, Faculty of Power and Environmental Engineering, 44-100 Gliwice, Poland;
| | - Patryk Tarka
- Department of Social Medicine and Public Health, Medical University of Warsaw, 02-007 Warszawa, Poland;
| | - Wojciech Kierat
- Department of Digital Systems, Silesian University of Technology, 44-100 Gliwice, Poland;
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21
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Mycotoxins and Climate Change. Fungal Biol 2022. [DOI: 10.1007/978-3-030-89664-5_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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22
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Chitosan crosslinking with pyridoxal 5-phosphate vitamer toward biocompatible hydrogels for in vivo applications. Int J Biol Macromol 2021; 193:1734-1743. [PMID: 34785198 DOI: 10.1016/j.ijbiomac.2021.10.228] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/29/2021] [Accepted: 10/31/2021] [Indexed: 12/29/2022]
Abstract
Vitamin B6 is an essential micronutrient in the mammalian diet, with role of coenzyme and synergistic effect with some antibiotics and antitumor drugs. Based on these, we hypothesized that its use for the preparation of hydrogels can yield multifunctional biomaterials suitable for in vivo applications. To this aim, chitosan was reacted with the active form of vitamin B6, pyridoxal 5-phosphate, via acid condensation, when clear hydrogels were obtained. Their investigation by structural characterization methods proved that the hydrogelation was a consequence of both covalent imine formation and physical interactions. The novel hydrogels had microporous morphology and showed shrinking effect in phosphate buffer, indicating good shape preservation and slow dissolution in in vivo environment. Their enzymatic biodegradation could be controlled by the imination degree, varying from 40 to 61% in 21 days. They demonstrated very good in vitro cytocompatibility on normal human dermal fibroblasts cells and no harmful effect on experimental mice, confirming their safely use for in vivo application.
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23
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Abstract
Abstract
Chitosan is a biopolymer originating from renewable resources, with great properties which make it an attractive candidate for plenty of applications of contemporary interest. By manufacturing chitosan into nanofibers using the electrospinning method, its potential is amplified due to the enhancement of the active surface and the low preparation cost. Many attempts were made with the aim of preparing chitosan-based nanofibers with controlled morphology targeting their use for tissue engineering, wound healing, food packaging, drug delivery, air and water purification filters. This was a challenging task, which resulted in a high amount of data, sometimes with apparent contradictory results. In this light, the goal of the paper is to present the main routes reported in the literature for chitosan electrospinning, stressing the advantages and disadvantages of each of them. Special emphasis is placed on the influence of various electrospinning parameters on the morphological characteristics of the fibers and their suitability for distinct applications.
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24
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Biomimetic nanoengineered scaffold for enhanced full-thickness cutaneous wound healing. Acta Biomater 2021; 124:191-204. [PMID: 33508511 DOI: 10.1016/j.actbio.2021.01.029] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 01/16/2021] [Accepted: 01/19/2021] [Indexed: 12/16/2022]
Abstract
Wound healing is a complex process based on the coordinated signaling molecules and dynamic interactions between the engineered scaffold and newly formed tissue. So far, most of the engineered scaffolds used for the healing of full-thickness skin wounds do not mimic the natural extracellular matrix (ECM) complexity and therefore are not able to provide an appropriate niche for endogenous tissue regeneration [1]. To address this gap and to accelerate the wound healing process, we present biomimetic bilayer scaffolds compositing of gelatin nanofibers (GFS) and photocrosslinkable composite hydrogels loaded with epidermal growth factors (EGF). The nanofibers operate as the dermis layer, and EGF-loaded composite hydrogels acted as the epidermis matrix for the full-thickness wound healing application. The hydrogels are composed of gelatin metacryloyl (GelMA) modified with silicate nanoplatelets (Laponite). To overcome the challenges of transdermal delivery of EGF, including short half-life and lack of efficient formulation precise, controlled delivery was attained by immobilization of EGF on Laponite. It is shown that the addition of 1wt% silicate nanoplatelet increases the compressive modulus of the hydrogels by 170%. In vitro wound closure analysis also demonstrated improved adhesion of the scaffolds to the native tissue by 3.5 folds. Moreover, the tunable hemostatic ability of the scaffolds due to the negatively charged nanoplatelets is shown. In an established excisional full-thickness wound model, an enhanced wound closure (up to 93.1 ± 1.5%) after 14 days relative to controls (GFS and saline-treated groups) is demonstrated. The engineered adhesive and hemostatic scaffolds with sustained release of the growth factors have the potential to stimulate complete skin regeneration for full-thickness wound healing.
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25
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Lopes M, Restani R, Carvalho MP, Correia I, Aguiar-Ricardo A, Bonifácio VD. Biocompatible oligo-oxazoline crosslinkers: Towards advanced chitosans for controlled dug release. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.104846] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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26
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Grabska-Zielińska S, Sionkowska A. How to Improve Physico-Chemical Properties of Silk Fibroin Materials for Biomedical Applications?-Blending and Cross-Linking of Silk Fibroin-A Review. MATERIALS (BASEL, SWITZERLAND) 2021; 14:1510. [PMID: 33808809 PMCID: PMC8003607 DOI: 10.3390/ma14061510] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/09/2021] [Accepted: 03/17/2021] [Indexed: 12/12/2022]
Abstract
This review supplies a report on fresh advances in the field of silk fibroin (SF) biopolymer and its blends with biopolymers as new biomaterials. The review also includes a subsection about silk fibroin mixtures with synthetic polymers. Silk fibroin is commonly used to receive biomaterials. However, the materials based on pure polymer present low mechanical parameters, and high enzymatic degradation rate. These properties can be problematic for tissue engineering applications. An increased interest in two- and three-component mixtures and chemically cross-linked materials has been observed due to their improved physico-chemical properties. These materials can be attractive and desirable for both academic, and, industrial attention because they expose improvements in properties required in the biomedical field. The structure, forms, methods of preparation, and some physico-chemical properties of silk fibroin are discussed in this review. Detailed examples are also given from scientific reports and practical experiments. The most common biopolymers: collagen (Coll), chitosan (CTS), alginate (AL), and hyaluronic acid (HA) are discussed as components of silk fibroin-based mixtures. Examples of binary and ternary mixtures, composites with the addition of magnetic particles, hydroxyapatite or titanium dioxide are also included and given. Additionally, the advantages and disadvantages of chemical, physical, and enzymatic cross-linking were demonstrated.
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Affiliation(s)
- Sylwia Grabska-Zielińska
- Department of Physical Chemistry and Physicochemistry of Polymers, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland
| | - Alina Sionkowska
- Department of Chemistry of Biomaterials and Cosmetics, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland;
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27
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Ghafoor D, Khan Z, Khan A, Ualiyeva D, Zaman N. Excessive use of disinfectants against COVID-19 posing a potential threat to living beings. Curr Res Toxicol 2021; 2:159-168. [PMID: 33688633 PMCID: PMC7931675 DOI: 10.1016/j.crtox.2021.02.008] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/08/2021] [Accepted: 02/26/2021] [Indexed: 02/07/2023] Open
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged in Wuhan city of China in late December 2019. The rapid spread of the COVID-19 across the communities shock the entire population, because of no existing therapies. Health professionals recommended frequent washing of hands with soap and alcohol-based sanitizers, but these disinfectants has worst effects on human health. Precautionary measures should be ensured to protect ourselves and the community from the possible risk associated with disinfectants.
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged in Wuhan city of China in late December 2019 and identified as a novel coronavirus disease 2019 (COVID-19). On January 30, the World Health Organization (WHO) declared the coronavirus outbreak a global public health emergency. The rapid spread of the pathogen across the communities shock the entire population. As no existing therapy were available during the pandemic. Health professionals recommended frequent washing of hands with soap and alcohol-based sanitizers. Disinfectants were extensively sprayed to minimize the possibility of getting COVID-19. Despite the potential benefits of these germicidal agents against COVID-19. Alcohol-based hand sanitizers lead to dry skin, infection, and alcohol poisoning. Children are considered more prone to alcohol poisoning and other major health concern. Precautionary measures should be ensured to protect the community from the possible risk associated with disinfectants.
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Affiliation(s)
- Dawood Ghafoor
- CAS Key Laboratory of Special Pathogens, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, Hubei, China.,University of Chinese Academy of Sciences, Beijing 100049, China.,Center for Biotechnology and Microbiology, University of Swat, Pakistan
| | - Zafran Khan
- University of Chinese Academy of Sciences, Beijing 100049, China.,State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China.,Center for Biotechnology and Microbiology, University of Swat, Pakistan
| | - Asaf Khan
- Ministry of Education, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, 730000 Gansu, China
| | - Daniya Ualiyeva
- University of Chinese Academy of Sciences, Beijing 100049, China.,Department of Herpetology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Nasib Zaman
- Center for Biotechnology and Microbiology, University of Swat, Pakistan
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28
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Abstract
The instrumentation used in ophthalmic clinics can be a source of epidemics in health care set up. Contact tonometry with Schiotz or Applanation tonometer is associated with nosocomial epidemic keratoconjunctivitis outbreaks. Recently identified SARS-CoV-2 (COVID -19) spreads mainly via the respiratory route and fomites and can transmit through other body fluids, including tear film. Various ophthalmic instruments can become a common source of spreading cross infections. Chemical disinfection is one of the most common methods employed to decontaminate instruments and environmental surfaces and prevent transmission of infectious pathogens to patients through medical and surgical instruments. Various chemical disinfectants are available with a varied spectrum to work on a different group of organisms. In this article, we briefly cover commonly used chemical disinfectants in ophthalmic practice like Alcohol (Ethyl Alcohol, Isopropyl Alcohol), Chlorine-based solution (mainly Sodium Hypochlorite), Glutaraldehyde, Hydrogen Peroxide, Formaldehyde, Iodophors, and Quaternary Ammonium Compounds
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Affiliation(s)
- Shefali R Parikh
- Consultant, Shreeji Eye Clinic and Palak's Glaucoma Care Centre, Mumbai, Maharashtra, India
| | - Rajul S Parikh
- Consultant, Shreeji Eye Clinic and Palak's Glaucoma Care Centre, Mumbai, Maharashtra, India
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29
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Abstract
Infection preventive practice of using disinfectants against SARS-CoV-2 has become the new normal due to the COVID-19 pandemic. Although disinfectants may not be applied directly to the human body, it remains at high risk of exposure including close skin contact on disinfected surfaces or during handling. This dermal contact, on a regular basis, can induce hazardous skin reactions like irritation, inflammation, and burning in severe conditions. Disinfectants are germicide chemicals that can penetrate the skin and create skin reactions that are usually regarded as irritant and allergic contact dermatitis. More importantly, disinfectants can react with skin components (proteins and lipids) to facilitate their skin penetration and disrupt the skin barrier function. Whereas the antimicrobial actions of disinfectants are well understood, much less is known regarding their dermatologic reactions, including but not limited to irritation and hypersensitivity. We reviewed the skin reactions created by those disinfectants against SARS-CoV-2 approved by the European Chemical Agency and the US Environmental Protection Agency.
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Affiliation(s)
- Choon Fu Goh
- Discipline of Pharmaceutical Technology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia.
| | - Long Chiau Ming
- PAP Rashidah Sa'adatul Bolkiah Institute of Health Sciences, Universiti Brunei Darussalam, Gadong BE1410, Brunei Darussalam.
| | - Li Ching Wong
- Discipline of Pharmaceutical Technology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia.
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30
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Grabska-Zielińska S, Sionkowska A, Carvalho Â, Monteiro FJ. Biomaterials with Potential Use in Bone Tissue Regeneration-Collagen/Chitosan/Silk Fibroin Scaffolds Cross-Linked by EDC/NHS. MATERIALS 2021; 14:ma14051105. [PMID: 33652959 PMCID: PMC7956200 DOI: 10.3390/ma14051105] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/15/2021] [Accepted: 02/22/2021] [Indexed: 02/08/2023]
Abstract
Blending of different biopolymers, e.g., collagen, chitosan, silk fibroin and cross-linking modifications of these mixtures can lead to new materials with improved physico-chemical properties, compared to single-component scaffolds. Three-dimensional scaffolds based on three-component mixtures of silk fibroin, collagen and chitosan, chemically cross-linked, were prepared and their physico-chemical and biological properties were evaluated. A mixture of EDC (N-(3-dimethylaminopropyl)-N’-ethylcarbodiimide hydrochloride) and NHS (N-hydroxysuccinimide) was used as a cross-linking agent. FTIR was used to observe the position of the peaks characteristic for collagen, chitosan and silk fibroin. The following properties depending on the scaffold structure were studied: swelling behavior, liquid uptake, moisture content, porosity, density, and mechanical parameters. Scanning Electron Microscopy imaging was performed. Additionally, the biological properties of these materials were assessed, by metabolic activity assay. The results showed that the three-component mixtures, cross-linked by EDC/NHS and prepared by lyophilization method, presented porous structures. They were characterized by a high swelling degree. The composition of scaffolds has an influence on mechanical properties. All of the studied materials were cytocompatible with MG-63 osteoblast-like cells.
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Affiliation(s)
- Sylwia Grabska-Zielińska
- Department of Physical Chemistry and Physicochemistry of Polymers, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland
- Correspondence:
| | - Alina Sionkowska
- Department of Chemistry of Biomaterials and Cosmetics, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland;
| | - Ângela Carvalho
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-180 Porto, Portugal; (Â.C.); (F.J.M.)
- INEB—Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200-180 Porto, Portugal
| | - Fernando J. Monteiro
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-180 Porto, Portugal; (Â.C.); (F.J.M.)
- INEB—Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200-180 Porto, Portugal
- FEUP—Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal
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31
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Zhang X, Meng Y, Shen W, Dou J, Liu R, Jin Q, Fang S. pH-responsive injectable polysaccharide hydrogels with self-healing, enhanced mechanical properties based on POSS. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2020.104773] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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32
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Shi J, Lian H, Huang Y, Zhao D, Wang H, Wang C, Li J, Ke L. In vitro genotoxicity evaluation and metabolic study of residual glutaraldehyde in animal-derived biomaterials. Regen Biomater 2020; 7:619-625. [PMID: 33365147 PMCID: PMC7748443 DOI: 10.1093/rb/rbaa041] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 08/13/2020] [Accepted: 08/27/2020] [Indexed: 12/30/2022] Open
Abstract
Glutaraldehyde (GA) is an important additive that is mainly used in animal-derived biomaterials to improve their mechanical and antimicrobial capacities. However, GA chemical toxicity and the metabolic mechanism remain relatively unknown. Therefore, residual GA has always been a major health risk consideration for animal-derived medical devices. In this study, extracts of three bio-patches were tested via the GA determination test and mouse lymphoma assay (MLA). The results showed that dissolved GA was a potential mutagen, which could induce significant cytotoxic and mutagenic effects in mouse lymphoma cells. These toxic reactions were relieved by the S9 metabolic activation (MA) system. Furthermore, we confirmed that GA concentration decreased and glutaric acid was generated during the catalytic process. We revealed GA could be oxidized via cytochrome P450 which was the main metabolic factor of S9. We found that even though GA was possibly responsible for positive reactions of animal-derived biomaterials' biocompatibility evaluation, it may not represent the real situation occurring in human bodies, owing to the presence of various detoxification mechanisms including the S9 system. Overall, in order to achieve a general balance between risk management and practical application, rational decisions based on comprehensive analyses must be considered.
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Affiliation(s)
- Jianfeng Shi
- Institute for Medical Devices Control, National Institutes for Food and Drug Control, No. 31 Huatuo Road, Beijing 102629, China
| | - Huan Lian
- Institute for Medical Devices Control, National Institutes for Food and Drug Control, No. 31 Huatuo Road, Beijing 102629, China
| | - Yuanli Huang
- Institute for Medical Devices Control, National Institutes for Food and Drug Control, No. 31 Huatuo Road, Beijing 102629, China
| | - Danmei Zhao
- Institute for Medical Devices Control, National Institutes for Food and Drug Control, No. 31 Huatuo Road, Beijing 102629, China
| | - Han Wang
- Institute for Medical Devices Control, National Institutes for Food and Drug Control, No. 31 Huatuo Road, Beijing 102629, China
| | - Chunren Wang
- Institute for Medical Devices Control, National Institutes for Food and Drug Control, No. 31 Huatuo Road, Beijing 102629, China
| | - Jingli Li
- Institute for Medical Devices Control, National Institutes for Food and Drug Control, No. 31 Huatuo Road, Beijing 102629, China
| | - Linnan Ke
- Institute for Medical Devices Control, National Institutes for Food and Drug Control, No. 31 Huatuo Road, Beijing 102629, China
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33
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Nguyen HV, Campbell K, Painter GF, Young SL, Walker GF. Nanoparticle System Based on Amino-Dextran as a Drug Delivery Vehicle: Immune-Stimulatory CpG-Oligonucleotide Loading and Delivery. Pharmaceutics 2020; 12:pharmaceutics12121150. [PMID: 33260874 PMCID: PMC7760314 DOI: 10.3390/pharmaceutics12121150] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 11/30/2022] Open
Abstract
The aim of this study is to prepare and characterize an amino-dextran nanoparticle (aDNP) platform and investigate two loading strategies for unmethylated cytosine-phosphate-guanine (CpG) oligonucleotide. aDNP was prepared by desolvation of amino-dextran followed by the chemical crosslinking of amino groups. Size, surface charge, and surface morphology of aDNP was determined by dynamic light scattering and transmission electron microscopy. CpG was either loaded onto aDNP by adsorption (CpG-adsorbed-aDNP) or conjugated to aDNP (CpG-conjugated-aDNP). In vitro cytokine production by bone marrow-derived dendritic cells (BMDCs) was measured by flow cytometry. aDNPs size and zeta potential could be controlled to produce uniform particles in the size range of 50 to 300 nm, surface charge of −16.5 to +14 mV, and were spherical in shape. Formulation control parameters investigated included the anti-solvent, water-to-anti-solvent ratio, level of amine functionality of dextran, and the molar ratio of glutaraldehyde to amine. aDNP could be lyophilized without additional cryoprotectant. Unloaded cationic aDNP (+13 mV) showed acceptable in vitro hemolysis. Unloaded and CpG-loaded aDNPs showed no cytotoxicity on BMDCs. CpG-loaded nanoparticles stimulated cytokine production by BMDCs, the level of cytokine production was higher for CpG-conjugated-aDNP compared to CpG-absorbed-aDNP. aDNP is a promising new drug delivery platform as its offers versatility in loading and tuning of particle properties.
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Affiliation(s)
- Hien V. Nguyen
- School of Pharmacy, University of Otago, Dunedin 9016, New Zealand;
- Department of Pathology, University of Otago, Dunedin 9016, New Zealand;
| | - Katrin Campbell
- Department of Pathology, University of Otago, Dunedin 9016, New Zealand;
| | - Gavin F. Painter
- The Ferrier Research Institute, Victoria University of Wellington, Wellington 5040, New Zealand;
| | - Sarah L. Young
- School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Sydney 2006, NSW, Australia;
| | - Greg F. Walker
- School of Pharmacy, University of Otago, Dunedin 9016, New Zealand;
- Correspondence: ; Tel.: +64-3-479-7133
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34
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Modak P, Hammond W, Jaffe M, Nadig M, Russo R. Dynamic, 3DSchiff base networks for medical applications. J Appl Polym Sci 2020. [DOI: 10.1002/app.49756] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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35
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Sarkar S, Das D, Dutta P, Kalita J, Wann SB, Manna P. Chitosan: A promising therapeutic agent and effective drug delivery system in managing diabetes mellitus. Carbohydr Polym 2020; 247:116594. [DOI: 10.1016/j.carbpol.2020.116594] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 06/03/2020] [Accepted: 06/03/2020] [Indexed: 02/06/2023]
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36
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Thumtecho S, Sriapha C, Tongpoo A, Udomsubpayakul U, Wananukul W, Trakulsrichai S. Poisoning of glutaraldehyde-containing products: clinical characteristics and outcomes. Clin Toxicol (Phila) 2020; 59:480-487. [PMID: 33112670 DOI: 10.1080/15563650.2020.1832231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
OBJECTIVE This study describes the clinical characteristics, outcomes, and factors at presentation associated with death of cases poisoned by glutaraldehyde (GA)-containing products. METHODS We performed a 5-year retrospective cohort study (July 2013-June 2018) using data from the Ramathibodi Poison Center. RESULTS There were 244 cases included in this study. Most were men with a median age of 37 years. The GA-containing products were mainly used as farm disinfectants (99.2%), with a median concentration of 15%. Most products (76.2%) contained co-formulants such as cationic detergents and formaldehyde.Most circumstances were accidental (56.9%). The others were suicide attempts by ingestion, except one patient who intentionally injected GA subcutaneously. The most common route of exposure was ingestion (95.0%). Local symptoms in areas of exposure were common. Ingestion resulted in more severe local effects than other routes, and corrosive effects occurred in 23 cases (9.4%). Systemic signs and symptoms occurred in 149 patients (61.1%). Systemic effects included abnormal vital signs, desaturation, altered mental status, hypo/hypernatremia, hypokalemia, low bicarbonate/metabolic acidosis, acute kidney injury (AKI), hepatitis, and rhabdomyolysis. Systemic effects mostly resulted from ingestion. Most patients had mild severity, received only supportive treatment, and fully recovered. The median length of hospital stay was 2 days. The one case of subcutaneous injection developed both local and systemic effects but survived. The mortality rate was 3.7%. Multivariate analysis indicated that either neurological symptoms or AKI at presentation were associated with death. CONCLUSIONS In our study, patients were exposed to GA-containing products that were mainly used as farm disinfectants and were generally co-formulated with other substances. Poisoning with these products commonly resulted in mild local irritative symptoms. However, some cases developed corrosive symptoms, systemic effects, or even died. As neurological symptoms or AKI could prognosticate deaths; physicians should look for these factors in patients with GA exposure at presentation for close monitoring and aggressive treatment.
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Affiliation(s)
- Suthimon Thumtecho
- Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.,Ramathibodi Poison Center, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Charuwan Sriapha
- Ramathibodi Poison Center, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Achara Tongpoo
- Ramathibodi Poison Center, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Umaporn Udomsubpayakul
- Section for Clinical Epidemiology and Biostatistics, Research Center, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Winai Wananukul
- Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.,Ramathibodi Poison Center, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Satariya Trakulsrichai
- Ramathibodi Poison Center, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.,Department of Emergency Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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37
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Dynamic imine bond based chitosan smart hydrogel with magnified mechanical strength for controlled drug delivery. Int J Biol Macromol 2020; 160:489-495. [DOI: 10.1016/j.ijbiomac.2020.05.221] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 05/11/2020] [Accepted: 05/26/2020] [Indexed: 11/22/2022]
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38
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Laryngeal Edema, Metabolic Acidosis, and Acute Kidney Injury Associated with Large-Volume Kohrsolin TH® Ingestion. J Emerg Med 2020; 59:900-905. [PMID: 32917443 DOI: 10.1016/j.jemermed.2020.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 06/04/2020] [Accepted: 07/01/2020] [Indexed: 11/20/2022]
Abstract
BACKGROUND Glutaraldehyde is a commonly used disinfectant in most hospitals. It is known to be an irritating agent to the airway. With the exception of one small-quantity (75 mL) ingestion, no large-volume ingestion has been previously reported. CASE REPORT A 59-year-old man presented with history of large-volume (500 mL) consumption of a solution containing 10% glutaraldehyde and developed respiratory distress, as well as gastrointestinal and kidney injury. His ingestion necessitated a feeding jejunostomy tube placement and tracheostomy. His condition improved with supportive care and he was discharged after 1 month with no long-term sequelae. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Ingestion of this easily accessible agent, which may initially seem clinically benign, warrants close observation. Emergent airway stabilization and supportive care is crucial to the survival of the patient.
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39
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Erkoc P, Uvak I, Nazeer MA, Batool SR, Odeh YN, Akdogan O, Kizilel S. 3D Printing of Cytocompatible Gelatin‐Cellulose‐Alginate Blend Hydrogels. Macromol Biosci 2020; 20:e2000106. [DOI: 10.1002/mabi.202000106] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/26/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Pelin Erkoc
- Faculty of Engineering and Natural Sciences Bahcesehir University 34353 Istanbul Turkey
| | - Ileyna Uvak
- Faculty of Engineering and Natural Sciences Bahcesehir University 34353 Istanbul Turkey
| | | | - Syeda Rubab Batool
- Biomedical Sciences and Engineering Koç University 34450 Istanbul Turkey
| | - Yazan Nitham Odeh
- Faculty of Engineering and Natural Sciences Bahcesehir University 34353 Istanbul Turkey
| | - Ozan Akdogan
- Faculty of Engineering and Natural Sciences Bahcesehir University 34353 Istanbul Turkey
| | - Seda Kizilel
- Chemical and Biological Engineering Koç University 34450 Istanbul Turkey
- Biomedical Sciences and Engineering Koç University 34450 Istanbul Turkey
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40
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Grabska-Zielińska S, Sionkowska A, Coelho CC, Monteiro FJ. Silk Fibroin/Collagen/Chitosan Scaffolds Cross-Linked by a Glyoxal Solution as Biomaterials toward Bone Tissue Regeneration. MATERIALS 2020; 13:ma13153433. [PMID: 32759746 PMCID: PMC7436058 DOI: 10.3390/ma13153433] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/23/2020] [Accepted: 07/31/2020] [Indexed: 11/25/2022]
Abstract
In this study, three-dimensional materials based on blends of silk fibroin (SF), collagen (Coll), and chitosan (CTS) cross-linked by glyoxal solution were prepared and the properties of the new materials were studied. The structure of the composites and the interactions between scaffold components were studied using FTIR spectroscopy. The microstructure was observed using a scanning electron microscope. The following properties of the materials were measured: density and porosity, moisture content, and swelling degree. Mechanical properties of the 3D materials under compression were studied. Additionally, the metabolic activity of MG-63 osteoblast-like cells on materials was examined. It was found that the materials were characterized by a high swelling degree (up to 3000% after 1 h of immersion) and good porosity (in the range of 80–90%), which can be suitable for tissue engineering applications. None of the materials showed cytotoxicity toward MG-63 cells.
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Affiliation(s)
- Sylwia Grabska-Zielińska
- Department of Physical Chemistry and Physicochemistry of Polymers, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland
- Correspondence: ; Tel.: +48-56-611-2210
| | - Alina Sionkowska
- Department of Chemistry of Biomaterials and Cosmetics, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland;
| | - Catarina C. Coelho
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; (C.C.C.); (F.J.M.)
- INEB—Instituto de Engenharia Biomédica, Universidade do Porto, 4200-180 Porto, Portugal
- FEUP—Faculdade de Engenharia, Universidade do Porto, 4200-465 Porto, Portugal
- FLUIDINOVA, S.A., 4470-605 Moreira da Maia, Portugal
| | - Fernando J. Monteiro
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; (C.C.C.); (F.J.M.)
- INEB—Instituto de Engenharia Biomédica, Universidade do Porto, 4200-180 Porto, Portugal
- FEUP—Faculdade de Engenharia, Universidade do Porto, 4200-465 Porto, Portugal
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41
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Using genipin as a “green” crosslinker to fabricate chitosan membranes for pervaporative dehydration of isopropanol. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116843] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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42
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Pinteala M, Abadie MJM, Rusu RD. Smart Supra- and Macro-Molecular Tools for Biomedical Applications. MATERIALS 2020; 13:ma13153343. [PMID: 32727155 PMCID: PMC7435709 DOI: 10.3390/ma13153343] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/22/2020] [Accepted: 07/24/2020] [Indexed: 12/28/2022]
Abstract
Stimuli-responsive, “smart” polymeric materials used in the biomedical field function in a bio-mimicking manner by providing a non-linear response to triggers coming from a physiological microenvironment or other external source. They are built based on various chemical, physical, and biological tools that enable pH and/or temperature-stimulated changes in structural or physicochemical attributes, like shape, volume, solubility, supramolecular arrangement, and others. This review touches on some particular developments on the topic of stimuli-sensitive molecular tools for biomedical applications. Design and mechanistic details are provided concerning the smart synthetic instruments that are employed to prepare supra- and macro-molecular architectures with specific responses to external stimuli. Five major themes are approached: (i) temperature- and pH-responsive systems for controlled drug delivery; (ii) glycodynameric hydrogels for drug delivery; (iii) polymeric non-viral vectors for gene delivery; (iv) metallic nanoconjugates for biomedical applications; and, (v) smart organic tools for biomedical imaging.
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Affiliation(s)
- Mariana Pinteala
- “Petru Poni” Institute of Macromolecular Chemistry, Romanian Academy, Grigore Ghica Voda Alley, 41A, 700487 Iasi, Romania; (M.P.); (M.J.M.A.)
| | - Marc J. M. Abadie
- “Petru Poni” Institute of Macromolecular Chemistry, Romanian Academy, Grigore Ghica Voda Alley, 41A, 700487 Iasi, Romania; (M.P.); (M.J.M.A.)
- Institute Charles Gerhardt Montpellier, Bat 15, CC 1052, University of Montpellier, 34095 Montpellier, France
| | - Radu D. Rusu
- “Petru Poni” Institute of Macromolecular Chemistry, Romanian Academy, Grigore Ghica Voda Alley, 41A, 700487 Iasi, Romania; (M.P.); (M.J.M.A.)
- Correspondence: ; Tel.: +40-232-217454
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43
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Joyce K, Rahmani S, Rochev Y. Quasi-isothermal modulated DSC as a valuable characterisation method for soft tissue biomaterial crosslinking reactions. Bioact Mater 2020; 5:428-434. [PMID: 32258832 PMCID: PMC7125324 DOI: 10.1016/j.bioactmat.2020.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 03/04/2020] [Accepted: 03/05/2020] [Indexed: 11/03/2022] Open
Abstract
Glutaraldehyde (Glut) is an extensively used sterilant and fixative for the crosslinking of natural soft tissue biomaterials like bovine pericardium (BP) to provide stability and is required for its application in vivo. There is plenty of debate around the reaction mechanism of Glut with natural biomaterials. Differential scanning calorimetry (DSC) is a commonly used technique that is typically used to measure the thermal profile of polymers. However, a variation known as quasi-isothermal modulated differential scanning calorimetry (QiMDSC) has been utilised for the analysis of polymorphic transformations in both the pharmaceutical and food industries. This communication will address QiMDSC as a method for analysing soft tissue biomaterials and their crosslinking mechanisms and how it can be applied to other biomaterial applications.
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Affiliation(s)
- K Joyce
- Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences, National University of Ireland Galway (NUIG), Newcastle Road, Galway, Ireland.,Boston Scientific Limited, Ballybrit Business Park, Galway, Ireland
| | - S Rahmani
- Boston Scientific Limited, Ballybrit Business Park, Galway, Ireland
| | - Y Rochev
- National University of Ireland, Galway, University Road, Galway, Ireland.,Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., Moscow, 119991, Russia
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44
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Abilova G, Abilkаrіm A, Irmukhametova G. Preparation and characterization of thermally crosslinked films based on chitosan and poly(2-ethyl-2-oxasoline). CHEMICAL BULLETIN OF KAZAKH NATIONAL UNIVERSITY 2019. [DOI: 10.15328/cb1085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Сrosslinked films based on chitosan (СHI) and poly(2-ethyl-2-oxazoline) (POZ) were prepared by thermal crosslinking. The optimal synthesis conditions and the composition of the film compositions were determined. The highest yield of the gel fraction was observed for CHI:POZ (80:20) films with a crosslinking time of 4 h at a temperature of 100°С. The main physicochemical properties of films based on pure CHI and CHI:POZ have been studied. The film swelling ability was reduced with the increase of poly(2-ethyl-2-oxazolin) content. The formation of crosslinks between N,N’-methylene-bis-acrylamide and functional amine groups of chitosan was proposed based on IR-spectroscopy data.
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45
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Zhang H, Cui S, Lv H, Pei X, Gao M, Chen S, Hu J, Zhou Y, Liu Y. A crosslinking strategy to make neutral polysaccharide nanofibers robust and biocompatible: With konjac glucomannan as an example. Carbohydr Polym 2019; 215:130-136. [DOI: 10.1016/j.carbpol.2019.03.075] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 03/22/2019] [Accepted: 03/22/2019] [Indexed: 12/22/2022]
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46
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Islam N, Dmour I, Taha MO. Degradability of chitosan micro/nanoparticles for pulmonary drug delivery. Heliyon 2019; 5:e01684. [PMID: 31193324 PMCID: PMC6525292 DOI: 10.1016/j.heliyon.2019.e01684] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 04/14/2019] [Accepted: 05/03/2019] [Indexed: 12/16/2022] Open
Abstract
Chitosan, a natural carbohydrate polymer, has long been investigated for drug delivery and medical applications due to its biodegradability, biocompatibility and low toxicity. The micro/nanoparticulate forms of chitosan are reported to enhance the efficiency of drug delivery with better physicochemical properties including improved solubility and bioavailability. This polymer is known to be biodegradable and biocompatible; however, crosslinked chitosan particles may not be biodegradable. Crosslinkers (e.g., tripolyphosphate and glutaraldehyde) are needed for efficient micro/nanoparticle formation, but it is not clear whether the resultant particles are biodegradable or able to release the encapsulated drug fully. To date, no studies have conclusively demonstrated the complete biodegradation or elimination of chitosan nanoparticles in vivo. Herein we review the synthesis and degradation mechanisms of chitosan micro/nanoparticles frequently used in drug delivery especially in pulmonary drug delivery to understand whether these nanoparticles are biodegradable.
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Affiliation(s)
- Nazrul Islam
- Pharmacy Discipline, School of Clinical Sciences, Faculty of Health, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
- Institute of Health and Biomedical Innovation, QUT, 60 Musk Avenue, Kelvin Grove, Brisbane, QLD 4059, Australia
| | - Isra Dmour
- Faculty of Pharmacy and Medical Sciences, Al-Ahliyya Amman University, Amman, Jordan
| | - Mutasem O Taha
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Jordan, Amman, 11942 Jordan
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Abstract
Abstract
The study deals with the exploration of the possibilities to control the morphology of cinnamyl-imine-chitosan hydrogels in view of their bio-application. Three series of hydrogels were synthetized from chitosan of three different molecular weights and cinnamaldehyde, varying the molar ratio between the amine groups on chitosan and aldehyde functional groups. The hydrogel morphology has been monitored by scanning electron microscopy. The variation of the hydrogel morphology as a function of chitosan molecular weight, crosslinking degree, and incubation conditions has been monitored. It was concluded that there are multiple possibilities of tuning the morphology of these hydrogels in function of the targeted application.
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48
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ZHU XM, ZHOU JF, GUO H, ZHANG XF, LIU XQ, LI HP, TAN JG. Effects of a modified cold atmospheric plasma jet treatment on resin-dentin bonding. Dent Mater J 2018; 37:798-804. [DOI: 10.4012/dmj.2017-314] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Xiao-Ming ZHU
- Department of Prosthodontics, Peking University School and Hospital of Stomatology
| | - Jian-Feng ZHOU
- Department of Prosthodontics, Peking University School and Hospital of Stomatology
| | - Heng GUO
- Department of Engineering Physics, Tsinghua University
| | | | - Xiao-Qiang LIU
- Department of Prosthodontics, Peking University School and Hospital of Stomatology
| | - He-Ping LI
- Department of Engineering Physics, Tsinghua University
| | - Jian-Guo TAN
- Department of Prosthodontics, Peking University School and Hospital of Stomatology
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Urbina L, Guaresti O, Requies J, Gabilondo N, Eceiza A, Corcuera MA, Retegi A. Design of reusable novel membranes based on bacterial cellulose and chitosan for the filtration of copper in wastewaters. Carbohydr Polym 2018; 193:362-372. [DOI: 10.1016/j.carbpol.2018.04.007] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 03/28/2018] [Accepted: 04/01/2018] [Indexed: 11/25/2022]
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50
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Modeling of the bacterial inactivation kinetics of dialdehyde cellulose in aqueous suspension. Int J Biol Macromol 2018; 116:920-926. [PMID: 29772337 DOI: 10.1016/j.ijbiomac.2018.05.074] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 04/19/2018] [Accepted: 05/12/2018] [Indexed: 11/23/2022]
Abstract
The purpose of this study was to estimate the antibacterial properties of aqueous suspensions of dialdehyde microcrystalline cellulose (DAMC), and a model of the observed antibacterial kinetics was proposed and validated. The DAMC was prepared from microcrystalline cellulose by periodate oxidation. The bacterial inactivation kinetics of aqueous suspensions of DAMC was investigated by measuring the bactericidal effect after different contact times. The results indicated that with a DAMC aldehyde content of 6.34 mmol/g, the MICs for S. aureus, E. coli, B. subtilis and S. typhimurium were 15, 15, 15 and 30 mg/mL, respectively. This research thus establishes an antibacterial kinetics model of DAMC with 6.34 mmol/g of aldehyde content. At 37 °C and atmospheric pressure, the bacterial inactivation kinetic conformed to the equation: Log reduction of bacteria = - k [DAMC] t.
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