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Konwar K, Boruah H, Gogoi R, Boruah A, Borgohain A, Baruah M, Gogoi SP, Karak T, Saikia J. Broad-spectrum pH functional chitosan-phosphatase beads for the generation of plant-available phosphorus: utilizing the insoluble P pool. Front Chem 2024; 12:1359191. [PMID: 38633986 PMCID: PMC11021595 DOI: 10.3389/fchem.2024.1359191] [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: 12/20/2023] [Accepted: 03/06/2024] [Indexed: 04/19/2024] Open
Abstract
Utilization of organic phosphates and insoluble phosphates for the gradual generation of plant-available phosphorus (P) is the only sustainable solution for P fertilization. Enzymatic conversions are one of the best sustainable routes for releasing P to soil. Phosphatase enzyme aids in solubilizing organic and insoluble phosphates to plant-available P. We herein report the preparation of highly functional chitosan beads co-immobilized with acid phosphatase and alkaline phosphatase enzymes via a glutaraldehyde linkage. The dual enzyme co-immobilized chitosan beads were characterized using Fourier-transform infrared (FTIR), thermogravimetric (TGA), and scanning electron microscopy-energy dispersive x-ray (SEM-EDX) analyses to confirm the immobilization. The co-immobilized system was found to be active for a broader pH range of ∼4-10 than the individually bound enzymes and mixed soluble enzymes. The bound matrix exhibited pH optima at 6 and 9, respectively, for acid and alkaline phosphatase and a temperature optimum at 50°C. The phosphate-solubilizing abilities of the chitosan-enzyme derivatives were examined using insoluble tri-calcium phosphate (TCP) for wide pH conditions of 5.5, 7, and 8.5 up to 25 days. The liberation of phosphate was highest (27.20 mg/mL) at pH 5.5 after the defined period. The residual soil phosphatase activity was also monitored after 7 days of incubation with CBE for three different soils of pH ∼5.5, 7, and 8.5. The residual phosphatase activity increased for all the soils after applying the CBE. The germination index of the Oryza sativa (rice) plant was studied using different pH buffer media upon the application of the CBE in the presence of tri-calcium phosphate as a phosphate source. Overall, the dual-enzyme co-immobilized chitosan beads were highly effective over a wide pH range for generating plant-available phosphates from insoluble phosphates. The chitosan-enzyme derivative holds the potential to be used for sustainable phosphorus fertilization with different insoluble and organic phosphorus sources.
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Affiliation(s)
- Kasturika Konwar
- Department of Chemistry, Dibrugarh University, Dibrugarh, Assam, India
| | - Himanku Boruah
- Department of Chemistry, Dibrugarh University, Dibrugarh, Assam, India
| | - Rimjim Gogoi
- Department of Chemistry, Dibrugarh University, Dibrugarh, Assam, India
| | - Anudhriti Boruah
- Department of Chemistry, Dibrugarh University, Dibrugarh, Assam, India
| | - Arup Borgohain
- Department of Chemistry, Dibrugarh University, Dibrugarh, Assam, India
| | - Madhusmita Baruah
- Department of Chemistry, Dibrugarh University, Dibrugarh, Assam, India
| | | | - Tanmoy Karak
- Department of Soil Science, School of Agricultural Sciences, Nagaland University, Medziphema Campus, Medziphema, Nagaland, India
| | - Jiban Saikia
- Department of Chemistry, Dibrugarh University, Dibrugarh, Assam, India
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Ungureanu C, Răileanu S, Zgârian R, Tihan G, Burnei C. State-of-the-Art Advances and Current Applications of Gel-Based Membranes. Gels 2024; 10:39. [PMID: 38247761 PMCID: PMC10815837 DOI: 10.3390/gels10010039] [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: 11/04/2023] [Revised: 12/09/2023] [Accepted: 12/29/2023] [Indexed: 01/23/2024] Open
Abstract
Gel-based membranes, a fusion of polymer networks and liquid components, have emerged as versatile tools in a variety of technological domains thanks to their unique structural and functional attributes. Historically rooted in basic filtration tasks, recent advancements in synthetic strategies have increased the mechanical strength, selectivity, and longevity of these membranes. This review summarizes their evolution, emphasizing breakthroughs that have positioned them at the forefront of cutting-edge applications. They have the potential for desalination and pollutant removal in water treatment processes, delivering efficiency that often surpasses conventional counterparts. The biomedical field has embraced them for drug delivery and tissue engineering, capitalizing on their biocompatibility and tunable properties. Additionally, their pivotal role in energy storage as gel electrolytes in batteries and fuel cells underscores their adaptability. However, despite monumental progress in gel-based membrane research, challenges persist, particularly in scalability and long-term stability. This synthesis provides an overview of the state-of-the-art applications of gel-based membranes and discusses potential strategies to overcome current limitations, laying the foundation for future innovations in this dynamic field.
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Affiliation(s)
- Camelia Ungureanu
- Department of General Chemistry, Faculty of Chemical Engineering and Biotechnologies, The National University of Science and Technology POLITEHNICA Bucharest, Gheorghe Polizu 1-7 Street, 011061 Bucharest, Romania
| | - Silviu Răileanu
- Department of Automation and Industrial Informatics, Faculty of Automatic Control and Computer Science, The National University of Science and Technology POLITEHNICA Bucharest, Splaiul Independenţei 313 Street, 060042 Bucharest, Romania;
| | - Roxana Zgârian
- Department of General Chemistry, Faculty of Chemical Engineering and Biotechnologies, The National University of Science and Technology POLITEHNICA Bucharest, Gheorghe Polizu 1-7 Street, 011061 Bucharest, Romania
| | - Grațiela Tihan
- Department of General Chemistry, Faculty of Chemical Engineering and Biotechnologies, The National University of Science and Technology POLITEHNICA Bucharest, Gheorghe Polizu 1-7 Street, 011061 Bucharest, Romania
| | - Cristian Burnei
- Clinical Department of Orthopedics and Traumatology II, Clinical Emergency Hospital, Calea Floreasca 8, 014461 Bucharest, Romania;
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Popescu M, Ungureanu C. Green Nanomaterials for Smart Textiles Dedicated to Environmental and Biomedical Applications. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16114075. [PMID: 37297209 DOI: 10.3390/ma16114075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 05/27/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
Smart textiles recently reaped significant attention owing to their potential applications in various fields, such as environmental and biomedical monitoring. Integrating green nanomaterials into smart textiles can enhance their functionality and sustainability. This review will outline recent advancements in smart textiles incorporating green nanomaterials for environmental and biomedical applications. The article highlights green nanomaterials' synthesis, characterization, and applications in smart textile development. We discuss the challenges and limitations of using green nanomaterials in smart textiles and future perspectives for developing environmentally friendly and biocompatible smart textiles.
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Affiliation(s)
- Melania Popescu
- National Institute for Research and Development in Microtechnologies-IMT Bucharest, 126A Erou Iancu Nicolae Street, 077190 Bucharest, Romania
| | - Camelia Ungureanu
- General Chemistry Department, University "Politehnica" of Bucharest, Gheorghe Polizu Street, 1-7, 011061 Bucharest, Romania
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Novel Cytocompatible Chitosan Schiff Base Derivative as a Potent Antibacterial, Antidiabetic, and Anticancer Agent. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2023. [DOI: 10.1007/s13369-022-07588-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
AbstractThis study intends to develop a novel bioactive chitosan Schiff base (CTS-SB) derivative via coupling of chitosan (CTS) with 4-((5, 5-dimethyl-3-oxocyclohex-1-en-1-yl) amino) benzene-sulfonamide. The alteration in the chemical structure of CTS-SB was verified using 1H NMR and FT-IR analysis, while the thermal and morphological properties were inspected by TGA and SEM characterization tools, respectively. Ion exchange capacity of the developed CTS-SB derivative recorded a maximal value of 12.1 meq/g compared to 10.1 meq/g for pristine CTS. In addition, antibacterial activity of CTS-SB derivative was greatly boosted against Escherichia coli (E coli) and Staphylococcus aureus (S. aureus) bacteria. Minimum inhibition concentration of CTS-SB derivative was perceived at 50 µg/mL, while the highest concentration (250 µg/mL) could inhibit the growth of S. aureus up to 91%. What’s more, enhanced antidiabetic activity by CTS-SB derivative, which displayed higher inhibitory values of α-amylase (57.9%) and α-glucosidase (63.9%), compared to those of pure CTS (49.8 and 53.4%), respectively Furthermore, cytotoxicity investigation on HepG-2 cell line revealed potential anticancer activity along with good safety margin against primary human skin fibroblasts (HSF cells) and decent cytocompatibility. Collectively, the gained results hypothesized that CTS-SB derivative could be effectively applied as a promising antibacterial, anticancer and antidiabetic agent for advanced biomedical applications.
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Formulation and Antibacterial Activity Evaluation of Quaternized Aminochitosan Membrane for Wound Dressing Applications. Polymers (Basel) 2021; 13:polym13152428. [PMID: 34372035 PMCID: PMC8347330 DOI: 10.3390/polym13152428] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 07/20/2021] [Accepted: 07/21/2021] [Indexed: 02/06/2023] Open
Abstract
Much attention has been paid to chitosan biopolymer for advanced wound dressing owing to its exceptional biological characteristics comprising biodegradability, biocompatibility and respectable antibacterial activity. This study intended to develop a new antibacterial membrane based on quaternized aminochitosan (QAMCS) derivative. Herein, aminochitosan (AMCS) derivative was quaternized by N-(2-Chloroethyl) dimethylamine hydrochloride with different ratios. The pre-fabricated membranes were characterized by several analysis tools. The results indicate that maximum surface potential of +42.2 mV was attained by QAMCS3 membrane compared with +33.6 mV for native AMCS membrane. Moreover, membranes displayed higher surface roughness (1.27 ± 0.24 μm) and higher water uptake value (237 ± 8%) for QAMCS3 compared with 0.81 ± 0.08 μm and 165 ± 6% for neat AMCS membranes. Furthermore, the antibacterial activities were evaluated against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus and Bacillus cereus. Superior antibacterial activities with maximum inhibition values of 80–98% were accomplished by QAMCS3 membranes compared with 57–72% for AMCS membrane. Minimum inhibition concentration (MIC) results denote that the antibacterial activities were significantly boosted with increasing of polymeric sample concentration from 25 to 250 µg/mL. Additionally, all membranes unveiled better biocompatibility and respectable biodegradability, suggesting their possible application for advanced wound dressing.
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Zhou W, Yan J, Li Y, Wang L, Jing L, Li M, Yu S, Cheng Y, Zheng Y. Based on the synergistic effect of Mg 2+ and antibacterial peptides to improve the corrosion resistance, antibacterial ability and osteogenic activity of magnesium-based degradable metals. Biomater Sci 2021; 9:807-825. [PMID: 33210105 DOI: 10.1039/d0bm01584a] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
To overcome the restricted degradation, poor antiacterial and osteoindctive problems of magnesium and its alloys, this study presented the spinning coating of an antimicrobial peptide (AP)-loaded silk fibroin (SF) composite onto a corrosion-resistant MgO-coated AZ31 Mg alloy via anodization (aMgO) and electrodeposition (eMgO) methods. The composite coatings not only created a smooth and hydrophilic surface, but also obviously improved the corrosion resistance according to the test of corrosion potential and current density. The colonization of E. coli on MgO-AP composite coatings was significantly reduced as compared to the MgO layers, due to the potential synergetic effects of APs and Mg2+. Compared with the bare AZ31, the composite coating inhibited the corrosion of the substrate and the release of Mg2+, supported the adhesion, spreading and proliferation of osteoblasts, and presented a significantly improved osteogenic differentiation trend. Therefore, the MgO-AP composite coating, which had both antibacterial and bone-promoting abilities, was expected to be applied for surface modification of magnesium alloy implants to solve the clinical problems of bacterial infection and poor osseointegration.
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Affiliation(s)
- Wenhao Zhou
- Shaanxi Key Laboratory of biomedical metal materials, Northwest Institute for Non-ferrous Metal Research, Xi'an 710016, P R China.
| | - Jianglong Yan
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China.
| | - Yangyang Li
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China.
| | - Lan Wang
- Shaanxi Key Laboratory of biomedical metal materials, Northwest Institute for Non-ferrous Metal Research, Xi'an 710016, P R China.
| | - Lei Jing
- Shaanxi Key Laboratory of biomedical metal materials, Northwest Institute for Non-ferrous Metal Research, Xi'an 710016, P R China.
| | - Ming Li
- China-America Institute of Neuroscience, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Sen Yu
- Shaanxi Key Laboratory of biomedical metal materials, Northwest Institute for Non-ferrous Metal Research, Xi'an 710016, P R China.
| | - Yan Cheng
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China.
| | - Yufeng Zheng
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China.
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Fabrication of biodegradable gelatin/chitosan/cinnamaldehyde crosslinked membranes for antibacterial wound dressing applications. Int J Biol Macromol 2019; 139:440-448. [DOI: 10.1016/j.ijbiomac.2019.07.191] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 07/12/2019] [Accepted: 07/28/2019] [Indexed: 11/23/2022]
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Dragostin I, Dragostin OM, Samal SK, Dash S, Tatia R, Dragan M, Confederat L, Ghiciuc CM, Diculencu D, Lupușoru CE, Zamfir CL. New isoniazid derivatives with improved pharmaco-toxicological profile: Obtaining, characterization and biological evaluation. Eur J Pharm Sci 2019; 137:104974. [PMID: 31252051 DOI: 10.1016/j.ejps.2019.104974] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 06/10/2019] [Accepted: 06/25/2019] [Indexed: 02/07/2023]
Abstract
Tuberculostatic drugs are the most common drug groups with global hepatotoxicity. Awareness of potentially severe hepatotoxic reactions is vital, as hepatic impairment can be a devastating and often fatal condition. The treatment problems that may arise, within this class of medicines, are mainly of two types: adverse reactions (collateral, toxic or hypersensitive reactions) and the initial or acquired resistance of Mycobacterium tuberculosis to one or more antituberculosis drugs. Prevention of adverse reactions, increase treatment adherence and success rates, providing better control of tuberculosis (TB). In this regard, obtaining new drugs with low toxicity and high tuberculostatic potential is essential. Thus, in this work, we have designed or synthesized new derivatives of isoniazid (INH), such as new Isonicotinoylhydrazone (INH-a, INH-b and INH-c). These derivatives demonstrated good biocompatibility, antimicrobial property similar to that of parent isoniazid and last but not least, a significantly improved Pharmacotoxicological profile compared to that of isoniazid.
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Affiliation(s)
- Ionut Dragostin
- University of Medicine and Pharmacy Grigore T. Popa, Faculty of Medicine, Department of Histology, 16 Universitatii Str., 700115, Iasi, Romania
| | - Oana M Dragostin
- Dunarea de Jos University of Galati, Faculty of Medicine and Pharmacy, Research Centre in the Medical-Pharmaceutical Field, 47 Domneasca Str., Galati, Romania.
| | - Sangram Keshari Samal
- Laboratory of Biomaterials and Regenerative Medicine for Advanced Therapies, Materials Research Centre, Indian Institute of Science Bangalore, 560 012, Karnataka, India; Laboratory of Biomaterials and regenerative Medicine for Advanced Therapies, Indian Council of Medical Research-Regional Medical Research Centre, Bhubaneswar 751 023, Odisha, India
| | - Saumya Dash
- Laboratory of Biomaterials and Regenerative Medicine for Advanced Therapies, Materials Research Centre, Indian Institute of Science Bangalore, 560 012, Karnataka, India
| | - Rodica Tatia
- Romanian National Institute of Research and Development for Biological Sciences, 296 Splaiul Independentei, 060031 Bucharest, Romania
| | - Maria Dragan
- University of Medicine and Pharmacy Grigore T. Popa, Faculty of Pharmacy, 16 Universitatii Str., 700115, Iasi, Romania
| | - Luminița Confederat
- University of Medicine and Pharmacy Grigore T. Popa, Faculty of Medicine, Department of Microbiology, 16 Universitatii Str., 700115, Iasi, Romania
| | - Cristina M Ghiciuc
- University of Medicine and Pharmacy Grigore T. Popa, Faculty of Medicine, Department of Pharmacology, 16 Universitatii Str., 700115, Iasi, Romania
| | - Daniela Diculencu
- Clinical Pneumophysiology Hospital, Medical Analysis Laboratory, Iasi, Romania
| | - Cătălina E Lupușoru
- University of Medicine and Pharmacy Grigore T. Popa, Faculty of Medicine, Department of Pharmacology, 16 Universitatii Str., 700115, Iasi, Romania
| | - Carmen L Zamfir
- University of Medicine and Pharmacy Grigore T. Popa, Faculty of Medicine, Department of Histology, 16 Universitatii Str., 700115, Iasi, Romania
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