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Samal D, Khandayataray P, Sravani M, Murthy MK. Silver nanoparticle ecotoxicity and phytoremediation: a critical review of current research and future prospects. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:8400-8428. [PMID: 38182947 DOI: 10.1007/s11356-023-31669-0] [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: 05/10/2023] [Accepted: 12/18/2023] [Indexed: 01/07/2024]
Abstract
Silver nanoparticles (AgNPs) are widely used in various industries, including textiles, electronics, and biomedical fields, due to their unique optical, electronic, and antimicrobial properties. However, the extensive use of AgNPs has raised concerns about their potential ecotoxicity and adverse effects on the environment. AgNPs can enter the environment through different pathways, such as wastewater, surface runoff, and soil application and can interact with living organisms through adsorption, ingestion, and accumulation, causing toxicity and harm. The small size, high surface area-to-volume ratio, and ability to generate reactive oxygen species (ROS) make AgNPs particularly toxic. Various bioremediation strategies, such as phytoremediation, have been proposed to mitigate the toxic effects of AgNPs and minimize their impact on the environment. Further research is needed to improve these strategies and ensure their safety and efficacy in different environmental settings.
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Affiliation(s)
- Dibyaranjan Samal
- Department of Biotechnology, Sri Satya Sai University of Technical and Medical Sciences, Sehore, Bhopal, Madhya Pradesh, India
| | - Pratima Khandayataray
- Department of Biotechnology, Academy of Management and Information Technology, Utkal University, Bhubaneswar, 752057, Odisha, India
| | - Meesala Sravani
- Department of Computer Science and Engineering, GMR Institute of Technology, Rajam, 532127, India
| | - Meesala Krishna Murthy
- Department of Allied Health Sciences, Chitkara School of Health Sciences, Chitkara University, Punjab, 140401, India.
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2
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Wang G, Xiao D, Fang Y, Ning G, Ye J. Polarity-dominated chitosan biguanide hydrochloride-based nanofibrous membrane with antibacterial activity for long-lasting air filtration. Int J Biol Macromol 2024; 254:127729. [PMID: 38287566 DOI: 10.1016/j.ijbiomac.2023.127729] [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: 10/06/2023] [Revised: 10/23/2023] [Accepted: 10/26/2023] [Indexed: 01/31/2024]
Abstract
Facemasks play a significant role as personal protective equipment during the COVID-19 pandemic, but their longevity is limited by the easy dissipation of electrostatic charge and the accumulation of bacteria. In this study, nanofibrous membranes composed of polyacrylonitrile and chitosan biguanide hydrochloride (PAN@CGH) with remarkable antibacterial characteristics were prepared through the coaxial electrospinning process. Particulate matter could be efficiently captured by the fibrous membrane, up to 98 % or more, via polarity-dominated forces derived from cyano and amino groups. As compared commercial N95 masks, the PAN@CGH was more resistant to a wider variety of disinfection protocols. Additionally, the nanofibrous membrane could kill >99.99 % of both Escherichia coli and Staphylococcus aureus. Based on these characteristics, PAN@CGH nanofibrous membrane was applied to facial mask, which possessed an excellent and long-lasting effect on the capture of airborne particles. This work may be one of the most promising strategies on designing high-performance face masks for public health protection.
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Affiliation(s)
- Guangyao Wang
- State Key Laboratory of Fine Chemicals and School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116012, PR China
| | - Dingwen Xiao
- State Key Laboratory of Fine Chemicals and School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116012, PR China
| | - Yueguang Fang
- State Key Laboratory of Fine Chemicals and School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116012, PR China
| | - Guiling Ning
- State Key Laboratory of Fine Chemicals and School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116012, PR China; Engineering Laboratory of Boric and Magnesic Functional Material Preparative and Applied Technology, 2 Linggong Road, Dalian, Liaoning 116024, PR China
| | - Junwei Ye
- State Key Laboratory of Fine Chemicals and School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116012, PR China; Engineering Laboratory of Boric and Magnesic Functional Material Preparative and Applied Technology, 2 Linggong Road, Dalian, Liaoning 116024, PR China.
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3
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Diniz MSDF, Mourão MM, Xavier LP, Santos AV. Recent Biotechnological Applications of Polyhydroxyalkanoates (PHA) in the Biomedical Sector-A Review. Polymers (Basel) 2023; 15:4405. [PMID: 38006129 PMCID: PMC10675258 DOI: 10.3390/polym15224405] [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: 08/24/2023] [Revised: 09/29/2023] [Accepted: 09/30/2023] [Indexed: 11/26/2023] Open
Abstract
Petroleum-derived plastics are materials of great importance for the contemporary lifestyle, and are widely used commercially because they are low cost, resistant, malleable, and weightless, in addition to their hydrophobic character. However, some factors that confer the qualities of these materials also cause problems, mainly environmental, associated with their use. The COVID-19 pandemic aggravated these impacts due to the high demand for personal protective equipment and the packaging sector. In this scenario, bioplastics are environmentally positive alternatives to these plastics due to their applicability in several areas ranging from packaging, to biomedicine, to agriculture. Polyhydroxyalkanoates (PHAs) are biodegradable biopolymers usually produced by microorganisms as an energy reserve. Their structural variability provides a wide range of applications, making them a viable option to replace polluting materials. PHAs can be applied in various biotechnology sectors, such as producing drug carriers and scaffolds for tissue engineering. This review aimed to survey works published in the last five years on the study and biotechnological application of PHAs in the biomedical sector, exploring the versatility and advantages of their use and helping to understand how to enhance their application.
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Affiliation(s)
- Matheus Silva da Fonseca Diniz
- Laboratory of Biotechnology of Enzymes and Biotransformations, Institute of Biological Sciences, Federal University of Pará, Belém 66075-110, Brazil; (M.M.M.); (L.P.X.)
| | | | | | - Agenor Valadares Santos
- Laboratory of Biotechnology of Enzymes and Biotransformations, Institute of Biological Sciences, Federal University of Pará, Belém 66075-110, Brazil; (M.M.M.); (L.P.X.)
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4
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Egorov AR, Kirichuk AA, Rubanik VV, Rubanik VV, Tskhovrebov AG, Kritchenkov AS. Chitosan and Its Derivatives: Preparation and Antibacterial Properties. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6076. [PMID: 37763353 PMCID: PMC10532898 DOI: 10.3390/ma16186076] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/28/2023] [Accepted: 09/01/2023] [Indexed: 09/29/2023]
Abstract
This comprehensive review illuminates the various methods of chitosan extraction, its antibacterial properties, and its multifarious applications in diverse sectors. We delve into chemical, physical, biological, hybrid, and green extraction techniques, each of which presents unique advantages and disadvantages. The choice of method is dictated by multiple variables, including the desired properties of chitosan, resource availability, cost, and environmental footprint. We explore the intricate relationship between chitosan's antibacterial activity and its properties, such as cationic density, molecular weight, water solubility, and pH. Furthermore, we spotlight the burgeoning applications of chitosan-based materials like films, nanoparticles, nonwoven materials, and hydrogels across the food, biomedical, and agricultural sectors. The review concludes by highlighting the promising future of chitosan, underpinned by technological advancements and growing sustainability consciousness. However, the critical challenges of optimizing chitosan's production for sustainability and efficiency remain to be tackled.
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Affiliation(s)
- Anton R. Egorov
- Department of Human Ecology and Biolementology, RUDN University, 6 Miklukho-Maklaya St., 117198 Moscow, Russia; (A.R.E.); (A.A.K.); (A.G.T.)
| | - Anatoly A. Kirichuk
- Department of Human Ecology and Biolementology, RUDN University, 6 Miklukho-Maklaya St., 117198 Moscow, Russia; (A.R.E.); (A.A.K.); (A.G.T.)
| | - Vasili V. Rubanik
- Institute of Technical Acoustics NAS of Belarus, Ludnikova Prosp. 13, 210009 Vitebsk, Belarus; (V.V.R.); (V.V.R.J.)
| | - Vasili V. Rubanik
- Institute of Technical Acoustics NAS of Belarus, Ludnikova Prosp. 13, 210009 Vitebsk, Belarus; (V.V.R.); (V.V.R.J.)
| | - Alexander G. Tskhovrebov
- Department of Human Ecology and Biolementology, RUDN University, 6 Miklukho-Maklaya St., 117198 Moscow, Russia; (A.R.E.); (A.A.K.); (A.G.T.)
| | - Andreii S. Kritchenkov
- Department of Human Ecology and Biolementology, RUDN University, 6 Miklukho-Maklaya St., 117198 Moscow, Russia; (A.R.E.); (A.A.K.); (A.G.T.)
- Institute of Technical Acoustics NAS of Belarus, Ludnikova Prosp. 13, 210009 Vitebsk, Belarus; (V.V.R.); (V.V.R.J.)
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5
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Salama HE, Abdel Aziz MS. Non-toxic chitosan-pyrazole adsorbent enriched with greenly synthesized zinc oxide nanoparticles for dye removal from wastewater. Int J Biol Macromol 2023; 241:124632. [PMID: 37119918 DOI: 10.1016/j.ijbiomac.2023.124632] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 04/15/2023] [Accepted: 04/24/2023] [Indexed: 05/01/2023]
Abstract
The limited usage of chitosan as a dye adsorbent is attributed to its compact structure and low swelling ability, despite its exceptional properties. The present study aimed to prepare novel chitosan/pyrazole Schiff base (ChS) adsorbents enriched with greenly synthesized zinc oxide nanoparticles. The preparation of ZnO-NPs was carried out through a green approach using the Coriandrum sativum extract. The presence of ZnO-NPs at the nanoscale was validated through TEM, DLS and XRD analyses. FTIR, 1H NMR confirmed the successful preparation of the Schiff base and its ZnO-NPs adsorbents. The incorporation of ZnO-NPs improved the thermal, swelling and antimicrobial properties of the chitosan Schiff base. In addition, a significant improvement in the adsorption of Maxilon Blue dye from its aqueous solution by the Schiff base/ZnO-NPs adsorbent. The prepared ChS/ZnO-NPs adsorbent has the potential to be used as an alternative to conventional adsorbents for the removal of dyes from wastewater.
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Affiliation(s)
- Hend E Salama
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
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6
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Natural antimicrobial systems protected by complex polyhydroxyalkanoate matrices for food biopackaging applications - A review. Int J Biol Macromol 2023; 233:123418. [PMID: 36731700 DOI: 10.1016/j.ijbiomac.2023.123418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 01/15/2023] [Accepted: 01/21/2023] [Indexed: 02/01/2023]
Abstract
Interest is growing in entrapping natural antimicrobial compounds (NACs) within polyhydroxyalkanoates (PHAs) to produce active food-biopackaging systems. PHAs are versatile polymeric macromolecules that can protect NAC activity by entrapment. This work reviews 75 original papers and 18 patents published in the last 11 years concerning PHAs as matrices for NACs to summarize the physicochemical properties, release, and antimicrobial activities of systems fabricated from PHAs and NACs (PHA/NAC systems). PHA/NAC systems have recently been used as active food biopackaging systems to inactivate foodborne pathogens and prolong food shelf life. PHAs protect NACs by increasing the degradation temperature of some NACs and decreasing their loss of mass when heated. Some NACs also transform the PHA/NAC systems into more thermostable, flexible, and resistant when interacting with PHAs while also improving the barrier properties of the systems. NAC release and activity are also prolonged when NACs are trapped within PHAs. PHA/NAC systems, therefore, represent ecologically friendly materials with promising applications.
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7
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Biocomposite Materials Based on Poly(3-hydroxybutyrate) and Chitosan: A Review. Polymers (Basel) 2022; 14:polym14245549. [PMID: 36559916 PMCID: PMC9782520 DOI: 10.3390/polym14245549] [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: 10/25/2022] [Revised: 12/03/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022] Open
Abstract
One of the important directions in the development of modern medical devices is the search and creation of new materials, both synthetic and natural, which can be more effective in their properties than previously used materials. Traditional materials such as metals, ceramics, and synthetic polymers used in medicine have certain drawbacks, such as insufficient biocompatibility and the emergence of an immune response from the body. Natural biopolymers have found applications in various fields of biology and medicine because they demonstrate a wide range of biological activity, biodegradability, and accessibility. This review first described the properties of the two most promising biopolymers belonging to the classes of polyhydroxyalkanoates and polysaccharides-polyhydroxybutyrate and chitosan. However, homopolymers also have some disadvantages, overcome which becomes possible by creating polymer composites. The article presents the existing methods of creating a composite of two polymers: copolymerization, electrospinning, and different ways of mixing, with a description of the properties of the resulting compositions. The development of polymer composites is a promising field of material sciences, which allows, based on the combination of existing substances, to develop of materials with significantly improved properties or to modify of the properties of each of their constituent components.
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da Silva MRP, Matos RS, Monteiro MDS, Santos SB, Filho HDF, Andrade GRS, Salerno M, Almeida LE. Exploiting the Physicochemical and Antimicrobial Properties of PHB/PEG and PHB/PEG/ALG-e Blends Loaded with Ag Nanoparticles. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15217544. [PMID: 36363134 PMCID: PMC9657507 DOI: 10.3390/ma15217544] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 10/20/2022] [Accepted: 10/24/2022] [Indexed: 06/01/2023]
Abstract
Poly(3-hydroxybutyrate) (PHB)-based films containing Poly(ethylene glycol) (PEG), esterified sodium alginate (ALG-e) and polymeric additives loaded with Ag nanoparticles (AgNPs) were obtained by a conventional casting method. AgNPs were produced in aqueous suspension and added to polymeric gels using a phase exchange technique. Composite formation was confirmed by finding the Ag peak in the XRD pattern of PHB. The morphological analysis showed that the inclusion of PEG polymer caused the occurrence of pores over the film surface, which were overshadowed by the addition of ALG-e polymer. The PHB functional groups were dominating the FTIR spectrum, whose bands associated with the crystalline and amorphous regions increased after the addition of PEG and ALG-e polymers. Thermal analysis of the films revealed a decrease in the degradation temperature of PHB containing PEG/AgNPs and PEG/ALG-e/AgNPs, suggesting a catalytic effect. The PHB/PEG/ALG-e/AgNPs film combined the best properties of water vapor permeability and hydrophilicity of the different polymers used. All samples showed good antimicrobial activity in vitro, with the greater inhibitory halo observed for the PEG/PEG/AgNPs against Gram positive S. aureus microorganisms. Thus, the PHB/PEG/ALG-e/AgNPs composite demonstrated here is a promising candidate for skin wound healing treatment.
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Affiliation(s)
- Mário R. P. da Silva
- Postgraduate Program in Materials Science and Engineering, Federal University of Sergipe-UFS, São Cristovão 49100-000, Sergipe, Brazil
| | - Robert S. Matos
- Postgraduate Program in Materials Science and Engineering, Federal University of Sergipe-UFS, São Cristovão 49100-000, Sergipe, Brazil
| | - Michael D. S. Monteiro
- Laboratory of Corrosion and Nanotechnology (LCNT), Federal University of Sergipe, São Cristovão 49100-000, Sergipe, Brazil
| | - Samuel B. Santos
- Postgraduate Program in Physiological Sciences, Federal University of Sergipe-UFS, São Cristovão 49100-000, Sergipe, Brazil
| | - Henrique D. F. Filho
- Laboratory of Synthesis of Nanomaterials and Nanoscopy (LSNN), Federal University of Amazonas-UFAM, Manaus 69077-000, Amazonas, Brazil
| | - George R. S. Andrade
- Postgraduate Program in Energy, Federal University of Espírito Santo, São Mateus 29075-910, Espírito Santo, Brazil
| | - Marco Salerno
- Institute for Globally Distributed Open Research and Education (IGDORE), Institute for Materials Science, Max Bergmann Center of Biomaterials, Technische Universität Dresden, 01069 Dresden, Germany
| | - Luís E. Almeida
- Postgraduate Program in Materials Science and Engineering, Federal University of Sergipe-UFS, São Cristovão 49100-000, Sergipe, Brazil
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Jiang G, Wang H, Yu L, Li H. Improving crystallization properties of
PBSA
by blending
PBS
as a polymeric nucleating agent to prepare high‐performance
PPC
/
PBSA
/
AX8900
blown films. POLYM ENG SCI 2022. [DOI: 10.1002/pen.25915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Guo Jiang
- Key Laboratory of Polymer Processing Engineering Ministry of Education, Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing South China University of Technology Guangzhou China
| | - Haiting Wang
- Key Laboratory of Polymer Processing Engineering Ministry of Education, Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing South China University of Technology Guangzhou China
| | - Li Yu
- Key Laboratory of Polymer Processing Engineering Ministry of Education, Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing South China University of Technology Guangzhou China
| | - Huili Li
- Key Laboratory of Polymer Processing Engineering Ministry of Education, Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing South China University of Technology Guangzhou China
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Chitosan Schiff bases/AgNPs: synthesis, characterization, antibiofilm and preliminary anti-schistosomal activity studies. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-03993-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Abu Elella MH, Shalan AE, Sabaa MW, Mohamed RR. One-pot green synthesis of antimicrobial chitosan derivative nanocomposites to control foodborne pathogens. RSC Adv 2021; 12:1095-1104. [PMID: 35425120 PMCID: PMC8978815 DOI: 10.1039/d1ra07070c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 12/03/2021] [Indexed: 12/21/2022] Open
Abstract
Food contamination by foodborne pathogens is considered a serious problem worldwide. This study aimed to show the efficacy of the one-pot green biosynthesis of nanocomposites as effective antimicrobial agents based on a water-soluble biodegradable polysaccharide and silver nitrate (AgNO3). Silver (Ag) nanoparticles were synthesized using different concentrations of AgNO3 solution (1, 2, and 3 mM) in the presence of N-quaternized chitosan and N,N,N-trimethyl chitosan chloride (TMC) as both a reducing and stabilizing agent. In addition, the structure of TMC/Ag nanocomposites was confirmed using different analytical tools including FTIR, UV-Vis, XRD, HR-TEM, FE-SEM, and EDX techniques. The FTIR spectra and UV-Vis spectra showed the main characteristic absorption peaks of Ag nanoparticles. In addition, FE-SEM images showed the formation of spherical bead-like particles on the surface of TMC. Correspondingly, the EDX spectrum showed a peak for silver, indicating the successful synthesis of Ag nanoparticles inside the TMC chains. Moreover, HR-TEM images exhibited the good distribution of Ag nanoparticles, which appeared as nano-spherical shapes. The antimicrobial activity of TMC/Ag nanocomposites was examined against three foodborne pathogens, including Salmonella Typhimurium as a Gram-negative bacterium, Bacillus subtilis as a Gram-positive bacterium and Aspergillus fumigatus as a fungus. The results showed that TMC/Ag nanocomposites had better antimicrobial activity compared with TMC alone and their antimicrobial activity increased with an increase in the concentration of Ag. The results confirmed that the TMC/Ag nanocomposites can be potentially used as an effective antimicrobial agent in food preservation. This study aimed to show the efficacy of the one-pot green biosynthesis of nanocomposites as effective antimicrobial agents based on a water-soluble biodegradable polysaccharide and silver nitrate (AgNO3).![]()
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Affiliation(s)
| | - Ahmed Esmail Shalan
- Central Metallurgical Research and Development Institute (CMRDI) P. O. Box 87, Helwan Cairo 11421 Egypt .,BCMaterials, Basque Center for Materials, Applications and Nanostructures Martina Casiano, UPV/EHU Science Park, Barrio Sarriena s/n Leioa 48940 Spain
| | - Magdy W Sabaa
- Chemistry Department, Faculty of Science, Cairo University Giza 12613 Egypt
| | - Riham R Mohamed
- Chemistry Department, Faculty of Science, Cairo University Giza 12613 Egypt
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13
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Barbosa IB, Barbosa-Dekker AM, Dekker RFH, Bezerra AG, de Santana H, Orsato A. Polysaccharide-based substrate for surface-enhanced Raman spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 249:119255. [PMID: 33338938 DOI: 10.1016/j.saa.2020.119255] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 11/24/2020] [Accepted: 11/26/2020] [Indexed: 06/12/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) became a useful analytical technique with the development of appropriate metallic substrates. The need for SERS substrates that immobilize metallic nanoparticles prompted this work to search for an appropriate material. This work presents the preparation, characterization and application of a SERS substrate for crystal violet (CV) detection, as the probe molecule. The inner layer of the substrate is a thin film of the fungal β-D-glucan, botryosphaeran, covered by a thin layer of silver nanoparticles (AgNPs). The nanoparticles were produced by laser ablation, a fast and clean method for their preparation, and the layers were assembled by casting. Scanning electron and atomic force microscopies, UV-VIS and Raman spectroscopy and X-ray diffraction allowed the characterization of the surface of the substrate. Analysis by Raman spectroscopy showed promising results for SERS amplification on the substrate. Detection of CV reached enhancement factors up to 106 orders of magnitude, compared to normal Raman spectra. Linearity was observed for analyses on the SERS substrate at concentration ranges of 0.005 to 1 µmol L-1. The assembly reached the detection of 12 pmol cm-2 of CV, which corresponds to 96 fg of the probe molecule contained in the area of the substrate effectively interacting with the laser. The substrate was more efficient than silver colloids to perform SERS.
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Affiliation(s)
- Ingrid Brito Barbosa
- Departamento de Química, CCE, Universidade Estadual de Londrina, CEP: 86051-990, Londrina, Paraná, Brazil
| | - Aneli M Barbosa-Dekker
- Departamento de Química, CCE, Universidade Estadual de Londrina, CEP: 86051-990, Londrina, Paraná, Brazil
| | - Robert F H Dekker
- Programa de Pós-Graduação em Engenharia Ambiental, Universidade Tecnológica Federal do Paraná, Câmpus Londrina, CEP 86036-370, Londrina, Paraná, Brazil
| | - Arandi Ginane Bezerra
- Departamento de Física, Universidade Tecnológica Federal do Paraná, CEP: 80230-901, Curitiba, Paraná, Brazil
| | - Henrique de Santana
- Departamento de Química, CCE, Universidade Estadual de Londrina, CEP: 86051-990, Londrina, Paraná, Brazil
| | - Alexandre Orsato
- Departamento de Química, CCE, Universidade Estadual de Londrina, CEP: 86051-990, Londrina, Paraná, Brazil.
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Chitosan grafted/cross-linked with biodegradable polymers: A review. Int J Biol Macromol 2021; 178:325-343. [PMID: 33652051 DOI: 10.1016/j.ijbiomac.2021.02.200] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 12/29/2022]
Abstract
Public perception of polymers has been drastically changed with the improved plastic management at the end of their life. However, it is widely recognised the need of developing biodegradable polymers, as an alternative to traditional petrochemical polymers. Chitosan (CH), a biodegradable biopolymer with excellent physiological and structural properties, together with its immunostimulatory and antibacterial activity, is a good candidate to replace other polymers, mainly in biomedical applications. However, CH has also several drawbacks, which can be solved by chemical modifications to improve some of its characteristics such as solubility, biological activity, and mechanical properties. Many chemical modifications have been studied in the last decade to improve the properties of CH. This review focussed on a critical analysis of the state of the art of chemical modifications by cross-linking and graft polymerization, between CH or CH derivatives and other biodegradable polymers (polysaccharides or proteins, obtained from microorganisms, synthetized from biomonomers, or from petrochemical products). Both techniques offer the option of including a wide variety of functional groups into the CH chain. Thus, enhanced and new properties can be obtained in accordance with the requirements for different applications, such as the release of drugs, the improvement of antimicrobial properties of fabrics, the removal of dyes, or as scaffolds to develop bone tissues.
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15
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Optimized alginate and Aloe vera gel edible coating reinforced with nTiO2 for the shelf-life extension of tomatoes. Int J Biol Macromol 2020; 165:2693-2701. [DOI: 10.1016/j.ijbiomac.2020.10.108] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/08/2020] [Accepted: 10/14/2020] [Indexed: 01/17/2023]
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16
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Salama HE, Abdel Aziz MS. Optimized carboxymethyl cellulose and guanidinylated chitosan enriched with titanium oxide nanoparticles of improved UV-barrier properties for the active packaging of green bell pepper. Int J Biol Macromol 2020; 165:1187-1197. [DOI: 10.1016/j.ijbiomac.2020.09.254] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/17/2020] [Accepted: 09/29/2020] [Indexed: 12/20/2022]
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17
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Salama HE, Abdel Aziz MS. Novel biocompatible and antimicrobial supramolecular O-carboxymethyl chitosan biguanidine/zinc physical hydrogels. Int J Biol Macromol 2020; 163:649-656. [DOI: 10.1016/j.ijbiomac.2020.07.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/25/2020] [Accepted: 07/03/2020] [Indexed: 12/14/2022]
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18
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Extruded polysaccharide/protein matrix from Arthrospira platensis cultures mediated silver nanoparticles biosynthesis and capping. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01490-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Shah A, Ashames AA, Buabeid MA, Murtaza G. Synthesis, in vitro characterization and antibacterial efficacy of moxifloxacin-loaded chitosan-pullulan-silver-nanocomposite films. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2019.101366] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Salama HE, Abdel Aziz MS, Alsehli M. Carboxymethyl cellulose/sodium alginate/chitosan biguanidine hydrochloride ternary system for edible coatings. Int J Biol Macromol 2019; 139:614-620. [DOI: 10.1016/j.ijbiomac.2019.08.008] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 07/30/2019] [Accepted: 08/01/2019] [Indexed: 01/10/2023]
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Salama HE, Abdel Aziz MS, Sabaa MW. Development of antibacterial carboxymethyl cellulose/chitosan biguanidine hydrochloride edible films activated with frankincense essential oil. Int J Biol Macromol 2019; 139:1162-1167. [DOI: 10.1016/j.ijbiomac.2019.08.104] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 07/05/2019] [Accepted: 08/12/2019] [Indexed: 02/03/2023]
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Abstract
Demand for environmentally friendly plastic materials which are obtained from renewable resources such as biomass-based polyesters is of concern. Herein, the enhanced characteristic performances of poly(butylene succinate) (PBS) by employing the fabrication of PBS-based composites with the nanosilver-coated carbon black (AgCB) using an injection-molding method are reported. The preformed AgCB additives are priorly prepared by the benzoxazine oxidation method. Phase characterization of the obtained composite materials examined by X-ray diffraction (XRD) reveals the crystalline PBS matrix and the presence of metallic silver particles, confirming the successful fabrication of the composite materials. Detailed analyses on thermal, mechanical, electrical, and antimicrobial properties of the composite materials are reported. The AgCB-PBS composite materials provide such potential features by an enhancement of electrical conductivity and the antimicrobial activity by an inhibition against E. coli and C. albicans. These AgCB-PBS composite materials show the possibility to be an option for antielectrostatic and antimicrobial applications such as for the production of smart, environmentally friendly keyboards.
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Silva GF, Silva TG, Gobbi VG, Portela TL, Teixeira BN, Santos Mendonça T, Silva Moreira Thiré RM, Oliveira RN, Yaunner RS, Almeida Rodrigues Junior J, Mendonça RH. Swelling degree prediction of polyhydroxybutyrate/chitosan matrices loaded with “
Arnica‐do‐Brasil”. J Appl Polym Sci 2019. [DOI: 10.1002/app.47838] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Glauco Fonseca Silva
- DEQ/ITUniversidade Federal Rural do Rio de Janeiro Rod BR 465, 23890‐000, Seropédica RJ Brazil
| | - Talita Goulart Silva
- DEQ/ITUniversidade Federal Rural do Rio de Janeiro Rod BR 465, 23890‐000, Seropédica RJ Brazil
| | - Vinícius Guedes Gobbi
- DEQ/ITUniversidade Federal Rural do Rio de Janeiro Rod BR 465, 23890‐000, Seropédica RJ Brazil
| | - Theresa Lomeu Portela
- DEQ/ITUniversidade Federal Rural do Rio de Janeiro Rod BR 465, 23890‐000, Seropédica RJ Brazil
| | - Bruna Nunes Teixeira
- PEMM/COPPEUniversidade Federal do Rio de Janeiro Ilha do Fundão, PO Box 68505, 21941‐972, Rio de Janeiro RJ Brazil
| | - Tiago Santos Mendonça
- Departamento de Física Teórica ‐ Instituto de Física A. D. TavaresUniversidade do Estado do Rio de Janeiro R. São Francisco Xavier, 524. Rio de Janeiro RJ 20550‐013 Brazil
| | | | - Renata Nunes Oliveira
- DEQ/ITUniversidade Federal Rural do Rio de Janeiro Rod BR 465, 23890‐000, Seropédica RJ Brazil
| | - Ricardo Stutz Yaunner
- Departamento de Química Orgânica, Instituto de QuímicaUniversidade Federal do Rio de Janeiro (UFRJ). Pólo de Xistoquímica, Rua Hélio de Almeida 40, Cidade Universitária Rio de Janeiro RJ 21941‐614 Brazil
| | - Jorge Almeida Rodrigues Junior
- Departamento de Química Orgânica, Instituto de QuímicaUniversidade Federal do Rio de Janeiro (UFRJ). Pólo de Xistoquímica, Rua Hélio de Almeida 40, Cidade Universitária Rio de Janeiro RJ 21941‐614 Brazil
| | - Roberta Helena Mendonça
- DEQ/ITUniversidade Federal Rural do Rio de Janeiro Rod BR 465, 23890‐000, Seropédica RJ Brazil
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Shah A, Yameen MA, Fatima N, Murtaza G. Chemical synthesis of chitosan/silver nanocomposites films loaded with moxifloxacin: Their characterization and potential antibacterial activity. Int J Pharm 2019; 561:19-34. [DOI: 10.1016/j.ijpharm.2019.02.029] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 11/09/2018] [Accepted: 02/15/2019] [Indexed: 01/07/2023]
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Panaitescu DM, Ionita ER, Nicolae CA, Gabor AR, Ionita MD, Trusca R, Lixandru BE, Codita I, Dinescu G. Poly(3-hydroxybutyrate) Modified by Nanocellulose and Plasma Treatment for Packaging Applications. Polymers (Basel) 2018; 10:E1249. [PMID: 30961174 PMCID: PMC6401738 DOI: 10.3390/polym10111249] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 11/07/2018] [Accepted: 11/08/2018] [Indexed: 11/28/2022] Open
Abstract
In this work, a new eco-friendly method for the treatment of poly(3-hydroxybutyrate) (PHB) as a candidate for food packaging applications is proposed. Poly(3-hydroxybutyrate) was modified by bacterial cellulose nanofibers (BC) using a melt compounding technique and by plasma treatment or zinc oxide (ZnO) nanoparticle plasma coating for better properties and antibacterial activity. Plasma treatment preserved the thermal stability, crystallinity and melting behavior of PHB‒BC nanocomposites, regardless of the amount of BC nanofibers. However, a remarkable increase of stiffness and strength and an increase of the antibacterial activity were noted. After the plasma treatment, the storage modulus of PHB having 2 wt % BC increases by 19% at room temperature and by 43% at 100 °C. The tensile strength increases as well by 21%. In addition, plasma treatment also inhibits the growth of Staphylococcus aureus and Escherichia coli by 44% and 63%, respectively. The ZnO plasma coating led to important changes in the thermal and mechanical behavior of PHB‒BC nanocomposite as well as in the surface structure and morphology. Strong chemical bonding of the metal nanoparticles on PHB surface following ZnO plasma coating was highlighted by infrared spectroscopy. Moreover, the presence of a continuous layer of self-aggregated ZnO nanoparticles was demonstrated by scanning electron microscopy, ZnO plasma treatment completely inhibiting growth of Staphylococcus aureus. A plasma-treated PHB‒BC nanocomposite is proposed as a green solution for the food packaging industry.
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Affiliation(s)
- Denis Mihaela Panaitescu
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, Polymer Department, 202 Spl. Independentei, 060021 Bucharest, Romania.
| | - Eusebiu Rosini Ionita
- National Institute for Laser, Plasma and Radiation Physics, Atomistilor 409, Magurele-Bucharest, 077125 Ilfov, Romania.
| | - Cristian-Andi Nicolae
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, Polymer Department, 202 Spl. Independentei, 060021 Bucharest, Romania.
| | - Augusta Raluca Gabor
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, Polymer Department, 202 Spl. Independentei, 060021 Bucharest, Romania.
| | - Maria Daniela Ionita
- National Institute for Laser, Plasma and Radiation Physics, Atomistilor 409, Magurele-Bucharest, 077125 Ilfov, Romania.
| | - Roxana Trusca
- Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania.
| | - Brindusa-Elena Lixandru
- "Cantacuzino" National Medical-Military Institute for Research and Development, 103 Spl. Independentei, 050096 Bucharest, Romania.
| | - Irina Codita
- "Cantacuzino" National Medical-Military Institute for Research and Development, 103 Spl. Independentei, 050096 Bucharest, Romania.
- Carol Davila University of Medicine and Pharmacy, Bulevardul Eroii Sanitari 8, 050474 Bucharest, Romania.
| | - Gheorghe Dinescu
- National Institute for Laser, Plasma and Radiation Physics, Atomistilor 409, Magurele-Bucharest, 077125 Ilfov, Romania.
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Abdel Aziz MS, Salama HE, Saad GR. Diglycidyl ether of bisphenol A/chitosan‐
graft
‐polyaniline composites with electromagnetic interference shielding properties: Synthesis, characterization, and curing kinetics. POLYM ENG SCI 2018. [DOI: 10.1002/pen.24933] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
| | - Hend E. Salama
- Faculty of Science, Department of ChemistryCairo University Giza 12613 Egypt
| | - Gamal R. Saad
- Faculty of Science, Department of ChemistryCairo University Giza 12613 Egypt
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Bio-active nanocomposite films based on nanocrystalline cellulose reinforced styrylquinoxalin-grafted-chitosan: Antibacterial and mechanical properties. Int J Biol Macromol 2018; 114:733-740. [DOI: 10.1016/j.ijbiomac.2018.03.114] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 02/05/2018] [Accepted: 03/21/2018] [Indexed: 01/25/2023]
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Effect of vinyl montmorillonite on the physical, responsive and antimicrobial properties of the optimized polyacrylic acid/chitosan superabsorbent via Box-Behnken model. Int J Biol Macromol 2018; 116:840-848. [PMID: 29777814 DOI: 10.1016/j.ijbiomac.2018.05.081] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 05/03/2018] [Accepted: 05/14/2018] [Indexed: 11/21/2022]
Abstract
This work aims to study the effect of a vinyl-modified montmorillonite (VMT) on the physical and antimicrobial properties of chitosan-graft-polyacrylic acid superabsorbent (Ch-g-PA). Ch-g-PA was first optimized using Box-Behnken design to obtain the maximum equilibrium swelling, and the model was efficient to express the experimental swelling data (R2 = 0.999). VMT was further added to the optimized Ch-g-PA in different contents 0, 4, 7 and 10 wt%. FTIR confirmed the successful synthesis of the copolymers and their nanocomposites. Morphology and the average pores size were studied using SEM. Wide angle X-ray diffraction showed the formation of exfoliated nanocomposites after VMT addition. Thermal stability studied by TGA was greatly enhanced in the presence of VMT. The swelling kinetics by Voigt-based viscoelastic model showed that the equilibrium swelling was increased by increasing the VMT up to 7 wt% then decreased after further incorporation. The superabsorbents exhibited salt and pH-responsive properties and showed a pH-reversibility at two buffer solutions (pH = 2 and pH = 9). Moreover, the prepared superabsorbents exhibited a strong bacterial and fungal killing ability which becomes more pronounced upon increasing the VMT content. The obtained results encourage the usage of the prepared copolymer nanocomposites in many fields as antimicrobial superabsorbents of improved physical properties.
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