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El-Batal AI, Eisa MI, Saad MAM, Fakhry HM, El-Neshwy WM, Abdel-Fatah SS, Mosallam FM, El-Sayyad GS. Gum Arabic assisted the biomass synthesis of bimetallic silver copper oxide nanoparticles using gamma-rays for improving bacterial and viral wound healing: Promising antimicrobial activity against foot and mouth disease. Int J Biol Macromol 2024; 262:130010. [PMID: 38336320 DOI: 10.1016/j.ijbiomac.2024.130010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 01/17/2024] [Accepted: 02/05/2024] [Indexed: 02/12/2024]
Abstract
In this work, gamma irradiation was used to create bimetallic silver‑copper oxide nanoparticles (Ag-CuO NPs) in an ecologically acceptable way using gum Arabic (GA) polymer as a capping and reducing agent. Bimetallic Ag-CuO NPs were investigated through UV-Vis. spectroscopy, HR-TEM, SEM, DLS, and XRD examinations. The potency of antimicrobial and antibiofilm activities against a few bacterial isolates and Candida sp. had been investigated. Clinical investigations of 30 cows and 20 buffaloes from different sites in Egypt's Sharkia governorate found ulcerative lesions on the mouth and interdigital region. The cytotoxic assay of the generated NPs on BHK-21 was examined. The bimetallic Ag-CuO NPs had an average diameter of 25.58 nm, and the HR-TEM results showed that they were spherical. According to our results, Ag-CuO NPs exhibited the highest antibacterial efficacy against S. aureus (26.5 mm ZOI), K. pneumoniae (26.0 mm ZOI), and C. albicans (28.5 mm ZOI). The growth of biofilms was also successfully inhibited through the application of Ag-CuO NPs by 88.12 % against S. aureus, 87.08 % against C. albicans, and 74.0 % against B. subtilis. The ulcers on the mouth and foot of diseased animals healed in 4-5 days and 1 week, respectively, following topical application of bimetallic Ag-CuO NPs. The results examined the potential protective effects of a dosage of 3.57 μg/mL on cells before viral infection (cell control). According to our research, bimetallic Ag-CuO NPs limit the development of the virus that causes foot-and-mouth disease (FMD). The reduction of a specific FMD virus's cytopathic impact (CPE) on cell development represented the inhibitory effect when compared to identical circumstances without pretreatment with bimetallic Ag-CuO NPs. Their remarkable antibacterial properties at low concentration and continued-phase stability suggest that they may find widespread use in a variety of pharmacological and biological applications, especially in the wound-healing process.
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Affiliation(s)
- Ahmed I El-Batal
- Drug Microbiology Lab., Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
| | - Mohamed I Eisa
- Department of Animal Medicine, Infectious Diseases, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt
| | | | - Hiam M Fakhry
- Foot and Mouth Disease Department, Veterinary Serum and Vaccine Research Institute, Cairo, Egypt
| | - Wafaa M El-Neshwy
- Department of Animal Medicine, Infectious Diseases, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Sobhy S Abdel-Fatah
- Drug Microbiology Lab., Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
| | - Farag M Mosallam
- Drug Microbiology Lab., Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
| | - Gharieb S El-Sayyad
- Drug Microbiology Lab., Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt.
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Kolya H, Kang CW. Next-Generation Water Treatment: Exploring the Potential of Biopolymer-Based Nanocomposites in Adsorption and Membrane Filtration. Polymers (Basel) 2023; 15:3421. [PMID: 37631480 PMCID: PMC10458676 DOI: 10.3390/polym15163421] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/03/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023] Open
Abstract
This review article focuses on the potential of biopolymer-based nanocomposites incorporating nanoparticles, graphene oxide (GO), carbon nanotubes (CNTs), and nanoclays in adsorption and membrane filtration processes for water treatment. The aim is to explore the effectiveness of these innovative materials in addressing water scarcity and contamination issues. The review highlights the exceptional adsorption capacities and improved membrane performance offered by chitosan, GO, and CNTs, which make them effective in removing heavy metals, organic pollutants, and emerging contaminants from water. It also emphasizes the high surface area and ion exchange capacity of nanoclays, enabling the removal of heavy metals, organic contaminants, and dyes. Integrating magnetic (Fe2O4) adsorbents and membrane filtration technologies is highlighted to enhance adsorption and separation efficiency. The limitations and challenges associated are also discussed. The review concludes by emphasizing the importance of collaboration with industry stakeholders in advancing biopolymer-based nanocomposites for sustainable and comprehensive water treatment solutions.
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Affiliation(s)
- Haradhan Kolya
- Department of Housing Environmental Design, Research Institute of Human Ecology, College of Human Ecology, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Chun-Won Kang
- Department of Housing Environmental Design, Research Institute of Human Ecology, College of Human Ecology, Jeonbuk National University, Jeonju 54896, Republic of Korea
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El-Behery RR, El-Sayed ESR, El-Sayyad GS. Gamma rays-assisted bacterial synthesis of bimetallic silver-selenium nanoparticles: powerful antimicrobial, antibiofilm, antioxidant, and photocatalytic activities. BMC Microbiol 2023; 23:224. [PMID: 37587432 PMCID: PMC10428608 DOI: 10.1186/s12866-023-02971-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 08/04/2023] [Indexed: 08/18/2023] Open
Abstract
BACKGROUND Bimetallic nanoparticles (BNPs) has drawn a lot of attention especially during the last couple of decades. A bimetallic nanoparticle stands for a combination of two different metals that exhibit several new and improved physicochemical properties. Therefore, the green synthesis and design of bimetallic nanoparticles is a field worth exploring. METHODS In this study, we present a green synthesis of silver nanoparticles (Ag NPs), selenium (Se) NPs, and bimetallic Ag-Se NPs using Gamma irradiation and utilizing a bacterial filtrate of Bacillus paramycoides. Different Techniques such as UV-Vis., XRD, DLS, SEM, EDX, and HR-TEM, were employed for identifying the synthesized NPs. The antimicrobial and antibiofilm activities of both the Ag/Se monometallic and bimetallic Ag-Se NPs were evaluated against some standard microbial strains including, Aspergillus brasiliensis ATCC16404, Candida albicans ATCC10231, Alternaria alternate EUM108, Fusarium oxysporum EUM37, Escherichia coli ATCC11229, Bacillus cereus ATCC15442, Klebsiella pneumoniae ATCC13883, Bacillus subtilis ATCC15442, and Pseudomonas aeruginosa ATCC6538 as a model tested pathogenic microbes. The individual free radical scavenging potentials of the synthesized Ag NPs, Se NPs, and bimetallic Ag-Se NPs were determined using the DPPH radical scavenging assay. The degradation of methylene blue (MB) dye in the presence of the synthesized Ag NPs, Se NPs, and bimetallic Ag-Se NPs was used to assess their photocatalytic behavior. RESULTS According to the UV-Vis. spectrophotometer, the dose of 20.0 kGy that results in Ag NPs with the highest O.D. = 3.19 at 390 nm is the most effective dose. In a similar vein, the optimal dose for the synthesis of Se NPs was 15.0 kGy dose with O.D. = 1.74 at 460 nm. With a high O.D. of 2.79 at 395 nm, the most potent dose for the formation of bimetallic Ag-Se NPs is 15.0 kGy. The recorded MIC-values for Ag-Se NPs were 62.5 µg mL- 1, and the data clearly demonstrated that C. albicans was the organism that was most susceptible to the three types of NPs. The MIC value was 125 µg mL- 1 for both Ag NPs and Se NPs. In antibiofilm assay, 5 µg mL- 1 Ag-Se NPs inhibited C. albicans with a percentage of 90.88%, E. coli with a percentage of 90.70%, and S. aureus with a percentage of 90.62%. The synthesized NPs can be arranged as follows in decreasing order of antioxidant capacity as an antioxidant result: Ag-Se NPs > Se NPs > Ag NPs. The MB dye degradation in the presence of the synthesized Ag NPs, Se NPs, and bimetallic Ag-Se NPs was confirmed by the decrease in the measured absorbance (at 664 nm) after 20 min of exposure to sunlight. CONCLUSION Our study provides insight towards the synthesis of bimetallic NPs through green methodologies, to develop synergistic combinatorial antimicrobials with possible applications in the treatment of infectious diseases caused by clinically and industrial relevant drug-resistant strains.
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Affiliation(s)
- Reham R El-Behery
- Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
| | - El-Sayed R El-Sayed
- Plant Research Department, Nuclear Research Center, Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt.
| | - Gharieb S El-Sayyad
- Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt.
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Hashem AH, Rizk SH, Abdel-Maksoud MA, Al-Qahtani WH, AbdElgawad H, El-Sayyad GS. Unveiling anticancer, antimicrobial, and antioxidant activities of novel synthesized bimetallic boron oxide-zinc oxide nanoparticles. RSC Adv 2023; 13:20856-20867. [PMID: 37448639 PMCID: PMC10336335 DOI: 10.1039/d3ra03413e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023] Open
Abstract
Bimetallic nanoparticles have received much attention recently due to their multifunctional applications, and synergistic potential at low concentrations. In the current study, bimetallic boron oxide-zinc oxide nanoparticles (B2O3-ZnO NPs) were synthesized by an eco-friendly, and cost-effective method through the utilization of gum arabic in the presence of gamma irradiation. Characterization of the synthesized bimetallic B2O3-ZnO NPs revealed the successful synthesis of bimetallic NPs on the nano-scale, and good distribution, in addition to formation of a stable colloidal nano-solution. Furthermore, the bimetallic B2O3-ZnO NPs were assessed for anticancer, antimicrobial and antioxidant activities. The evaluation of the cytotoxicity of bimetallic B2O3-ZnO NPs on Vero and Wi38 normal cell lines illustrated that bimetallic B2O3-ZnO NPs are safe in use where IC50 was 384.5 and 569.2 μg ml-1, respectively. The bimetallic B2O3-ZnO NPs had anticancer activity against Caco 2 where IC50 was 80.1 μg ml-1. Furthermore, B2O3-ZnO NPs exhibited promising antibacterial activity against E. coli, P. aeruginosa, B. subtilis and S. aureus, where MICs were 125, 62.5, 125 and 62.5 μg ml-1 respectively. Likewise, B2O3-ZnO NPs had potential antifungal activity against C. albicans as unicellular fungi (MIC was 62.5 μg ml-1). Moreover, B2O3-ZnO NPs displayed antioxidant activity (IC50 was 102.6 μg ml-1). In conclusion, novel bimetallic B2O3-ZnO NPs were successfully synthesized using gum arabic under gamma radiation, where they displayed anticancer, antimicrobial and antioxidant activities.
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Affiliation(s)
- Amr H Hashem
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University Nasr City Cairo 11884 Egypt
| | - Samar H Rizk
- Department of Biochemistry, Faculty of Pharmacy, Ahram Canadian University Sixth of October City Giza Egypt
- Department of Biochemistry, Faculty of Pharmacy, Galala University New Galala City Suez Egypt
| | - Mostafa A Abdel-Maksoud
- Botany and Microbiology Department, College of Science, King Saud University P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Wahidah H Al-Qahtani
- Department of Food Sciences & Nutrition, College of Food and Agricultural Sciences, King Saud University P.O. Box 270677 Riyadh 11352 Saudi Arabia
| | - Hamada AbdElgawad
- Laboratory for Molecular Plant Physiology and Biotechnology, Department of Biology, University of Antwerp 2020 Antwerp Belgium
| | - Gharieb S El-Sayyad
- Microbiology and Immunology Department, Faculty of Pharmacy, Ahram Canadian University Sixth of October City Giza Egypt
- Microbiology and Immunology Department, Faculty of Pharmacy, Galala University New Galala City Suez Egypt
- Drug Microbiology Lab, Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA) Cairo Egypt
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Mohammadipour-Nodoushan R, Shekarriz S, Shariatinia Z, Heydari A, Montazer M. Improved cotton fabrics properties using zinc oxide-based nanomaterials: A review. Int J Biol Macromol 2023; 242:124916. [PMID: 37276903 DOI: 10.1016/j.ijbiomac.2023.124916] [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: 03/27/2023] [Revised: 05/05/2023] [Accepted: 05/13/2023] [Indexed: 06/07/2023]
Abstract
Zinc oxide nanoparticles (ZnO NPs) have gained significant attention in the textile industry for their ability to enhance the physicochemical properties of fabrics. In recent years, there has been a growing focus on the development of ZnO-based nanomaterials and their applications for cotton and other fabrics. This review paper provides an overview of the synthesis and diverse applications of ZnO-based nanomaterials for textile fabrics, including protection against UV irradiation, bacteria, fungi, microwave, electromagnetic radiation, water, and fire. Furthermore, the study offers the potential of these materials in energy harvesting applications, such as wearable pressure sensors, piezoelectric nanogenerators, supercapacitors, and human energy harvesting. Additionally, we discuss the potential of ZnO-based nanomaterials for environmental cleaning, including water, oil, and solid cleaning. The current research in this area has focused on various materials used to prepare ZnO-based nanocomposites, such as metals/nonmetals, semiconductors, metal oxides, carbon materials, polymers, MXene, metal-organic frameworks, and layered double hydroxides. The findings of this review highlight the potential of ZnO-based nanomaterials to improve the performance of textile fabrics in a range of applications, and the importance of continued research in this field to further advance the development and use of ZnO-based nanomaterials in the textile industry.
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Affiliation(s)
- Roya Mohammadipour-Nodoushan
- Color and Polymer Research Centre, Amirkabir University of Technology (Tehran Polytechnic), 15875-4413 Tehran, Iran
| | - Shahla Shekarriz
- Color and Polymer Research Centre, Amirkabir University of Technology (Tehran Polytechnic), 15875-4413 Tehran, Iran.
| | - Zahra Shariatinia
- Department of Chemistry, Amirkabir University of Technology (Tehran Polytechnic), 15875-4413 Tehran, Iran.
| | - Abolfazl Heydari
- Polymer Institute of the Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia
| | - Majid Montazer
- Department of Textile Engineering, Amirkabir University of Technology (Tehran Polytechnic), 15875-4413 Tehran, Iran
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Alvarez-Lorenzo C, Vivero-Lopez M, Concheiro A. Contact lenses that transform gold into nanoparticles for prophylaxis of light-related events and photothermal therapy. Int J Pharm 2023; 641:123048. [PMID: 37192704 DOI: 10.1016/j.ijpharm.2023.123048] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/09/2023] [Accepted: 05/09/2023] [Indexed: 05/18/2023]
Abstract
This work describes for first time how anisotropic gold nanoparticles (AuNPs) can be spontaneously formed inside preformed contact lenses (CLs) avoiding the use of additional reductant agents (reagent-free) through a precise tunning of the monomeric composition, the saline concentration, and the application of steam heat sterilization. Protocols to generate AuNPs in solution using inorganic or small organic reductants are widely available. Differently, gold precursors interactions with polymer networks have been overlooked and, thus, the interest of chemically cross-linked hydrogels as organic reductants is still to be elucidated. In the ocular field, incorporation of AuNPs to CLs may expand their applications in prophylaxis, therapy and diagnosis. To carry out the work, a variety of hydrogels and commercially available CLs were incubated with gold salt solution without any other chemical reagent. AuNPs formation was monitored by changes in localized surface plasmon resonance (LSPR) bands and quantifying the gold sorbed. Only silicone hydrogels induced AuNPs formation at room temperature in few days; methacrylic acid red-shifted the LSPR band (550-600 nm), while monomers bearing F hindered the reduction. Storage of hydrogels in the gold precursor solution allowed a gradual formation of anisotropic AuNPs, which could be stopped at any time by washing the hydrogel with water. The developed CLs behave as efficient filters against highly penetrant light and also exhibit photoresponsiveness as demonstrated as rapid (10 seconds), focused mild hyperthermia when irradiated with green, red and NIR lasers.
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Affiliation(s)
- Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+DFarma Group (GI-1645), Facultad de Farmacia, Instituto de Materiales (iMATUS), and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15872 Santiago de Compostela, Spain.
| | - Maria Vivero-Lopez
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+DFarma Group (GI-1645), Facultad de Farmacia, Instituto de Materiales (iMATUS), and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15872 Santiago de Compostela, Spain
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+DFarma Group (GI-1645), Facultad de Farmacia, Instituto de Materiales (iMATUS), and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15872 Santiago de Compostela, Spain
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AuNP/Chitosan Nanocomposites Synthesized through Plasma Induced Liquid Chemistry and Their Applications in Photothermal Induced Bacteria Eradication. Pharmaceutics 2022; 14:pharmaceutics14102147. [PMID: 36297582 PMCID: PMC9611015 DOI: 10.3390/pharmaceutics14102147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/25/2022] [Accepted: 10/08/2022] [Indexed: 11/17/2022] Open
Abstract
In this work, a facile direct current atmospheric pressure micro-plasma (APM) technology was deployed for the synthesis of functional gold nanoparticle/chitosan (AuNP/CS) nanocomposites for the first time. Different experimental parameters, such as metal salt precursor concentration and chitosan viscosity, have been investigated to understand their effects on the resulting nanocomposite structures and properties. The nanocomposites were fully characterized using a wide range of material characterization techniques such as UV–vis, transmission electron microscope (TEM), Fourier transform infrared (FTIR) spectra and X-ray photoelectron spectroscopy (XPS) analyses. Potential reaction pathways have been proposed for the nanocomposite synthesis process. Finally, potential of the synthesized nanocomposites towards photothermal conversion and bacteria eradiation applications has been demonstrated. The results show that APM is a facile, rapid and versatile technique for the synthesis of AuNP/CS functional nanocomposites. Through this work, a more in-depth understanding of the multi-phase system (consisting of gas, plasma, liquid and solid) has been established and such understanding could shine a light on the future design and fabrication of new functional nanocomposites deploying the APM technique.
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Elakraa AA, Salem SS, El-Sayyad GS, Attia MS. Cefotaxime incorporated bimetallic silver-selenium nanoparticles: promising antimicrobial synergism, antibiofilm activity, and bacterial membrane leakage reaction mechanism. RSC Adv 2022; 12:26603-26619. [PMID: 36275140 PMCID: PMC9486975 DOI: 10.1039/d2ra04717a] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 09/09/2022] [Indexed: 12/18/2022] Open
Abstract
In this research, we reported for the first time the simple incorporation of antibiotic cefotaxime (CFM) with the synthesized Ag NPs, Se NPs, and bimetallic Ag-Se NPs by gamma rays, as a promising cost-effective, and eco-friendly method. The synthesized nanocomposites were characterized by UV-Vis. spectroscopy, XRD, EDX, HR-TEM, SEM/mapping, and EDX studies. The antimicrobial synergistic potential was investigated after CFM drug incorporation. Antibiofilm activity, growth curve assay, and effect of UV illumination were examined against some pathogenic microbes. The antibacterial reaction mechanism was evaluated by protein leakage assay and SEM imaging. HRTEM imaging confirmed the spherical shape and an average diameter of 10.95, 20.54, and 12.69 nm for Ag NPs, Se NPs, and Ag-Se NPs, respectively. Ag NPs-CFM, Se NPs-CFM, and Ag-Se NPs-CFM possessed antimicrobial activity against Staphylococcus aureus (40, 42, and 43 mm ZOI, respectively), Escherichia coli (33, 35, and 34 mm ZOI, respectively) and Candida albicans (25, 22, and 23 mm ZOI, respectively). CFM-incorporated Ag-Se NPs were able to inhibit biofilm formation of S. aureus (96.09%), E. coli (98.32%), and C. albicans (95.93%). Based on the promising results, the synthesized nanocomposites showed superior antimicrobial potential at low concentrations and continued-phase durability; they may find use in pharmaceutical, and biomedical applications.
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Affiliation(s)
- Abdelrahman A Elakraa
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University Nasr City Cairo 11884 Egypt
- Chemical Industries Department Industrial Control Authority Cairo Egypt
| | - Salem S Salem
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University Nasr City Cairo 11884 Egypt
| | - Gharieb S El-Sayyad
- Department of Microbiology and Immunology, Faculty of Pharmacy, Galala University New Galala City, Suez Egypt
- Drug Microbiology Lab., Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA) Cairo Egypt
| | - Mohamed S Attia
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University Nasr City Cairo 11884 Egypt
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Samanta SK, Mandal B, Tripathy T. Sodium alginate‐cl‐poly (N,N‐dimethyl acryl amide‐co‐2‐acrylamino‐2‐methyl‐1‐propane sulphonic acid)/titanium dioxide nanocomposite hydrogel: An efficient dye‐removing agent. J Appl Polym Sci 2022. [DOI: 10.1002/app.52465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Santu Kumar Samanta
- Postgraduate Division of Chemistry Midnapore College (Autonomous) Midnapore West Bengal India
| | - Barun Mandal
- Postgraduate Division of Chemistry Midnapore College (Autonomous) Midnapore West Bengal India
| | - Tridib Tripathy
- Postgraduate Division of Chemistry Midnapore College (Autonomous) Midnapore West Bengal India
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Jayeoye TJ, Eze FN, Singh S, Olatunde OO, Benjakul S, Rujiralai T. Synthesis of gold nanoparticles/polyaniline boronic acid/sodium alginate aqueous nanocomposite based on chemical oxidative polymerization for biological applications. Int J Biol Macromol 2021; 179:196-205. [PMID: 33675826 DOI: 10.1016/j.ijbiomac.2021.02.199] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/25/2021] [Accepted: 02/26/2021] [Indexed: 12/25/2022]
Abstract
Gold nanoparticles/polyaniline boronic acid/sodium alginate aqueous nanocomposite ((PABA-SAL)@AuNPs) was fabricated. Aniline boronic acid (ABA) served as reductant of gold salt, all within the SAL solution. While ABA reduced gold salt to its nanoparticles, the ABA monomer was also oxidized to its conducting polymeric form (PABA). The presence of PABA in the reaction mixture exerted solubility and stability challenge, thus SAL was used as stabilizer and solubilizer for PABA. The numerous cis-diol groups of SAL could bind to boronic acid groups of PABA to furnish PABA-SAL repeating polymer structure for AuNPs anchoring. Sparkling ruby red (PABA-SAL)@AuNPs have absorption peaks at 529 and 718 nm. Average particle sizes of nanocomposite were within 15-20 nm, with hydrodynamic diameter of 48.6 ± 0.9 nm, zeta potential of -32.5 ± 1.6 mV and conductivity value of 2015.3 ± 3.2 μS/cm. (PABA-SAL)@AuNPs possessed antibacterial activities against seafood associated bacterial isolates, with MIC and MBC ranging from 4 to 8 μg/mL. The moderate antioxidant capacity of (PABA-SAL)@AuNPs was observed, without any deleterious damages on human red blood cells. It also has good biocompatibility on Caco-2 and RAW 264.7, with cell viability not less than 70%. These results confirm the high prospect of (PABA-SAL)@AuNPs for possible biomedical applications.
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Affiliation(s)
- Titilope John Jayeoye
- Center of Excellence for Innovation in Chemistry, Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand; Analytical Chemistry and Environment Research Unit, Faculty of Science and Technology, Prince of Songkla University, Pattani 94000, Thailand; Department of Chemistry/Biochemistry/Molecular Biology, Alex-Ekwueme Federal University, Ndufu-Alike Ikwo, Abakaliki, Ebonyi State, Nigeria
| | - Fredrick Nwude Eze
- Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand; Drug Delivery System Excellence Center, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Sudarshan Singh
- Excellence Research Laboratory on Natural Products, Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Oladipupo Odunayo Olatunde
- International Center of Excellence in Seafood Science and Innovation, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Soottawat Benjakul
- International Center of Excellence in Seafood Science and Innovation, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Thitima Rujiralai
- Center of Excellence for Innovation in Chemistry, Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand; Analytical Chemistry and Environment Research Unit, Faculty of Science and Technology, Prince of Songkla University, Pattani 94000, Thailand.
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Saren RK, Banerjee S, Mondal B, Senapati S, Tripathy T. Studies of simultaneous electrochemical sensing of Hg 2+ and Cd 2+ ions and catalytic reduction properties of 4-nitrophenol by CuO, Au, and CuO@Au composite nanoparticles synthesised using a graft copolymer as a bio-template. NEW J CHEM 2021. [DOI: 10.1039/d1nj04702g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Simultaneous electrochemical detection of Hg2+ and Cd2+ ions and catalytic reduction of 4NP to 4AP using a novel synthesized graft copolymer/CuO@Au NPs composite.
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Affiliation(s)
- Rakesh Kumar Saren
- Postgraduate Division of Chemistry, Midnapore College (Autonomous), Paschim Medinipur, Midnapore 721101, West Bengal, India
| | - Shankha Banerjee
- Department of Biotechnology, BJM School of Bioscience, Indian Institute of Technology Madras, Chennai 600036, India
| | - Barun Mondal
- Postgraduate Division of Chemistry, Midnapore College (Autonomous), Paschim Medinipur, Midnapore 721101, West Bengal, India
| | - Sanjib Senapati
- Department of Biotechnology, BJM School of Bioscience, Indian Institute of Technology Madras, Chennai 600036, India
| | - Tridib Tripathy
- Postgraduate Division of Chemistry, Midnapore College (Autonomous), Paschim Medinipur, Midnapore 721101, West Bengal, India
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El-Batal AI, Abd Elkodous M, El-Sayyad GS, Al-Hazmi NE, Gobara M, Baraka A. Gum Arabic polymer-stabilized and Gamma rays-assisted synthesis of bimetallic silver-gold nanoparticles: Powerful antimicrobial and antibiofilm activities against pathogenic microbes isolated from diabetic foot patients. Int J Biol Macromol 2020; 165:169-186. [PMID: 32987079 DOI: 10.1016/j.ijbiomac.2020.09.160] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/26/2020] [Accepted: 09/20/2020] [Indexed: 12/13/2022]
Abstract
In this research, irradiation by gamma rays was employed as an eco-friendly route for the construction of bimetallic silver-gold nanoparticles (Ag-Au NPs), while Gum Arabic polymer was used as a capping agent. Ag-Au NPs were characterized through UV-Vis., XRD, EDX, HR-TEM, FTIR, SEM/mapping and EDX analysis. Antibiofilm and antimicrobial activities were examined against some bacteria and Candida sp. isolates from diabetic foot patients. Our results revealed that the synthesis of Ag-Au NPs depended on the concentrations of tetra-chloroauric acid and silver nitrate. HR-TEM analysis confirmed the spherical nature and an average diameter of 18.58 nm. FTIR results assured many functional groups in Gum Arabic which assisted in increasing the susceptibility of incorporation with Ag-Au NPs. Our results showed that, Ag-Au NPs exhibited the highest antimicrobial performance against B. subtilis (14.30 mm ZOI) followed by E. coli (12.50 mm ZOI) and C. tropicalis (11.90 mm ZOI). In addition, Ag-Au NPs were able to inhibit the biofilm formation by 99.64%, 94.15%, and 90.79% against B. subtilis, E. coli, and C. tropicalis, respectively. Consequently, based on the promising properties, they showed superior antimicrobial potential at low concentration and continued-phase durability, they can be extensively-used in many pharmaceutical and biomedical applications.
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Affiliation(s)
- Ahmed I El-Batal
- Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
| | - M Abd Elkodous
- Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, Toyohashi, Aichi 441-8580, Japan; Center for Nanotechnology (CNT), School of Engineering and Applied Sciences, Nile University, Sheikh Zayed, Giza 16453, Egypt.
| | - Gharieb S El-Sayyad
- Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt; Chemical Engineering Department, Military Technical Collage (MTC), Egyptian Armed Forces, Cairo, Egypt.
| | - Nawal E Al-Hazmi
- Department of Chemistry, Division of Biology (Microbiology), University College of Qunfudah, Umm Al-Qura University, Saudi Arabia
| | - Mohamed Gobara
- Chemical Engineering Department, Military Technical Collage (MTC), Egyptian Armed Forces, Cairo, Egypt
| | - Ahmad Baraka
- Chemical Engineering Department, Military Technical Collage (MTC), Egyptian Armed Forces, Cairo, Egypt
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13
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Ahmed HB. Recruitment of various biological macromolecules in fabrication of gold nanoparticles: Overview for preparation and applications. Int J Biol Macromol 2019; 140:265-277. [DOI: 10.1016/j.ijbiomac.2019.08.138] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 08/15/2019] [Accepted: 08/16/2019] [Indexed: 11/26/2022]
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14
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Mondal B, Bhanja SK, Tripathy T. Simultaneous Electrochemical Sensing of
p
‐Aminophenol and Hydroquinone by Using Grafted
Tricholoma
Mushroom Polysaccharide/Gold Composite Nanoparticles in Aqueous Media. ChemistrySelect 2019. [DOI: 10.1002/slct.201901772] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Barun Mondal
- Postgraduate Division of ChemistryMidnapore College (Autonomous), Midnapore, Paschim Medinipur 721101, West Bengal India
| | - Sunil K. Bhanja
- Department of chemistryGovernment General Degree College, Kharagpur-II, Paschim Medinipur 721149, West Bengal India
| | - Tridib Tripathy
- Postgraduate Division of ChemistryMidnapore College (Autonomous), Midnapore, Paschim Medinipur 721101, West Bengal India
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15
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Zhu J, Han H, Li F, Wang X, Yu J, Chu CC, Wu D. Self-assembly of amino acid-based random copolymers for antibacterial application and infection treatment as nanocarriers. J Colloid Interface Sci 2019; 540:634-646. [DOI: 10.1016/j.jcis.2018.12.091] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 12/05/2018] [Accepted: 12/26/2018] [Indexed: 11/24/2022]
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16
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Luo Z, Xu Y, Ye E, Li Z, Wu YL. Recent Progress in Macromolecule-Anchored Hybrid Gold Nanomaterials for Biomedical Applications. Macromol Rapid Commun 2019; 40:e1800029. [PMID: 29869424 DOI: 10.1002/marc.201800029] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 04/12/2018] [Indexed: 12/16/2022]
Abstract
Gold nanoparticles (AuNPs), with elegant thermal, optical, or chemical properties due to quantum size effects, may serve as unique species for therapeutic or diagnostic applications. It is worth mentioning that their small size also results in high surface activity, leading to significantly impaired stability, which greatly hinders their biomedical utilizations. To overcome this problem, various types of macromolecular materials are utilized to anchor AuNPs so as to achieve advanced synergistic effect by dispersing, protecting, and stabilizing the AuNPs in polymeric-Au hybrid self-assemblies. In this review, the most recent development of polymer-AuNP hybrid systems, including AuNPs@polymeric nanoparticles, AuNPs@polymeric micelle, AuNPs@polymeric film, and AuNPs@polymeric hydrogel are discussed with respect to their different synthetic strategies. These sophisticated materials with diverse functions, oriented toward biomedical applications, are further summarized into several active domains in the areas of drug delivery, gene delivery, photothermal therapy, antibacterials, bioimaging, etc. Finally, the possible approaches for future design of multifunctional polymer-AuNP hybrids by combining hybrid chemistry with biological interface science are proposed.
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Affiliation(s)
- Zheng Luo
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China
| | - Yang Xu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China
| | - Enyi Ye
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08-03, Singapore, 138634, Singapore
| | - Zibiao Li
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08-03, Singapore, 138634, Singapore
| | - Yun-Long Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China
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17
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Zhang P, Zhao S, Yu Y, Wang H, Yang Y, Liu C. Biocompatibility Profile and In Vitro Cellular Uptake of Self-assembled Alginate Nanoparticles. Molecules 2019; 24:E555. [PMID: 30717442 PMCID: PMC6384778 DOI: 10.3390/molecules24030555] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 01/28/2019] [Accepted: 02/01/2019] [Indexed: 11/30/2022] Open
Abstract
Polymeric nanoparticles could offer promising controlled drug delivery. The biocompatibility is of extreme importance for future applications in humans. Self-assembled polymeric nanoparticles based on phenylalanine ethyl ester (PAE)-modified alginate (Alg) had been successfully prepared and characterized in our lab. However, little is known about their interaction with cells and other biological systems. In this study, nanoparticles (NPs) based on PAE-Alg conjugates (PEA-NPs) with different degree of substitution (DS) were prepared and investigated. Our results showed that PEA-NPs had no effects on the proliferation of the human intestinal epithelial Caco-2 cells at concentrations up to 1000 μg/mL. Furthermore, the in vitro cellular uptake profile of PEA-NPs, concerning several parameters involved in the application of therapeutic or diagnostic NPs, such as NPs concentration, time and temperature, was described. Different NPs have been adopted for cellular uptake studies and the NPs internalized into Caco-2 cells were quantified. Cellular uptake efficiency could reach 60% within 4 h. PEA-NPs also showed greater cell permeability than oleoyl alginate ester nanoparticles (OAE-NPs) previously prepared in our lab. Our studies reveal that NPs based on PEA conjugate are promising nanosystems for cellular delivery.
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Affiliation(s)
- Pei Zhang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
- Department of Life Science, Luoyang Normal University, Luoyang 471934, China.
| | - Shirui Zhao
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
| | - Yaoyao Yu
- Department of Life Science, Luoyang Normal University, Luoyang 471934, China.
| | - Huan Wang
- Department of Life Science, Luoyang Normal University, Luoyang 471934, China.
| | - Yan Yang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
| | - Chenguang Liu
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
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18
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Shao Y, Wu C, Wu T, Yuan C, Chen S, Ding T, Ye X, Hu Y. Green synthesis of sodium alginate-silver nanoparticles and their antibacterial activity. Int J Biol Macromol 2018; 111:1281-1292. [PMID: 29307808 DOI: 10.1016/j.ijbiomac.2018.01.012] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 11/23/2017] [Accepted: 01/03/2018] [Indexed: 10/18/2022]
Abstract
Silver nanoparticles (AgNPs) were synthesized by a new 'green chemistry' method that uses sodium alginate (Na-Alg) and ascorbic acid (Vc) as the stabilizing and reducing agents, respectively. A possible mechanism involved in the reduction and stabilization of nanoparticles was investigated. The effect of reaction conditions such as pH, the addition of AgNO3 and Vc, ultrasonication treatments on the synthesis of AgNPs was investigated. The formation of AgNPs was confirmed by UV-Vis spectroscopy and characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD). The results indicated that the size and distribution of AgNPs were significantly affected by reaction parameters. XRD and TEM analysis confirmed the formation of spherical and face-centred cubic nanoparticles. They showed strong antibacterial activity against Staphylococcus aureus and Escherichia coli due to cell death caused by the increase in membrane permeability and disruption of bacterial wall integrity. It indicated that Na-Alg-AgNPs is a potential food packaging material.
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Affiliation(s)
- Ying Shao
- National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Chunhua Wu
- National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, China
| | - Tiantian Wu
- National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Chunhong Yuan
- Department of Food Production and Environmental Management, Faculty of Agriculture, Iwate University, Morioka, Iwate 020-8550, Japan
| | - Shiguo Chen
- National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Tian Ding
- National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Xingqian Ye
- National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Yaqin Hu
- National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
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19
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Mondal B, Ray J, Jana S, Bhanja SK, Tripathy T. In situ preparation of Tricholoma mushroom polysaccharide-g-poly(N,N-dimethyl acrylamide-co-acrylic acid)–CuO composite nanoparticles for highly sensitive and selective sensing of Th4+ in aqueous medium. NEW J CHEM 2018. [DOI: 10.1039/c8nj05390a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A highly selective and sensitive sensor for Th4+ was developed for the first time using Tricholoma mushroom polysaccharide-based graft copolymer–CuO composite nanoparticles by colorimetric and electrochemical method.
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Affiliation(s)
- Barun Mondal
- Postgraduate Division of Chemistry
- Midnapore College (Autonomous)
- India
| | - Jagabandhu Ray
- Postgraduate Division of Chemistry
- Midnapore College (Autonomous)
- India
| | - Subinoy Jana
- Postgraduate Division of Chemistry
- Midnapore College (Autonomous)
- India
| | - Sunil K. Bhanja
- Department of Chemistry
- Government General Degree College
- India
| | - Tridib Tripathy
- Postgraduate Division of Chemistry
- Midnapore College (Autonomous)
- India
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20
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Tripathy T, Kolya H, Jana S, Senapati M. Green synthesis of Ag-Au bimetallic nanocomposites using a biodegradable synthetic graft copolymer; hydroxyethyl starch-g-poly (acrylamide-co-acrylic acid) and evaluation of their catalytic activities. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2016.12.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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21
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Chen Y, Wu X, Lv L, Li F, Liu Z, Kong Q, Li C. Enhancing reducing ability of α-zein by fibrillation for synthesis of Au nanocrystals with continuous flow catalysis. J Colloid Interface Sci 2016; 491:37-43. [PMID: 28012290 DOI: 10.1016/j.jcis.2016.09.081] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Revised: 09/30/2016] [Accepted: 09/30/2016] [Indexed: 12/20/2022]
Abstract
Green low-cost synthesis and efficient recyclability are two major hindrances for Au nanocrystals as catalysts applying in diverse industrial reaction processes. By the use of low-cost α-zein (i.e. a major storage protein of corn) as the reductant, capping agent and stabilizer, Au nanocrystals with tunable catalytic activity were synthesized in a wet-chemical approach. Fibrillation of α-zein further enhanced its reducing ability due to larger specific surface area and more hydrophilic groups exposed on the surfaces. The obtained Au nanocrystals had biocompatibility, high stability in various solvents, unique solubility in aqueous alcohol and high catalytic ability, being able to detect ethanol composition in aqueous ethanol as well as H2O2 for diagnosis of diabetes mellitus. These advantages also enable efficient recyclability of Au nanocrystals with continuous flow catalysis in different solvents and environments. Thus, the use of α-zein offered Au nanocrystals not only with green low-cost synthesis, but also with tunable catalytic activities, ethanol-responsiveness and efficient recyclability, which may be applicable in diverse fields.
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Affiliation(s)
- Yijun Chen
- College of Textiles & Clothing, Qingdao University, Qingdao 266071, PR China; CAS Key Laboratory of Bio-based materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Songling Road 189, Qingdao 266101, PR China
| | - Xiaochen Wu
- CAS Key Laboratory of Bio-based materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Songling Road 189, Qingdao 266101, PR China
| | - Lili Lv
- CAS Key Laboratory of Bio-based materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Songling Road 189, Qingdao 266101, PR China
| | - Fei Li
- CAS Key Laboratory of Bio-based materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Songling Road 189, Qingdao 266101, PR China
| | - Zhengqin Liu
- College of Textiles & Clothing, Qingdao University, Qingdao 266071, PR China.
| | - Qingshan Kong
- CAS Key Laboratory of Bio-based materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Songling Road 189, Qingdao 266101, PR China.
| | - Chaoxu Li
- CAS Key Laboratory of Bio-based materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Songling Road 189, Qingdao 266101, PR China.
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22
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Zhang P, Zhao SR, Li JX, Hong L, Raja MA, Yu LJ, Liu CG. Nanoparticles based on phenylalanine ethyl ester-alginate conjugate as vitamin B2 delivery system. J Biomater Appl 2016; 31:13-22. [PMID: 26916950 DOI: 10.1177/0885328216630497] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Phenylalanine ethyl ester (PAE)-alginate (Alg) conjugate (PAE-Alg, PEA) was synthesized and formation of an amide bond between PAE and Alg was confirmed by Fourier transformed-infrared and (1)H nuclear magnetic resonance spectroscopy. The degree of PAE substitution was 3.5-4.7 (PAE group per hundred sugar residues of Alg) which was determined by elemental analysis. The critical aggregation concentration values determined for PEA conjugates PEA1, PEA2, and PEA3 were 0.20, 0.12, and 0.10 mg/ml, respectively. The particle size of PEA nanoparticles (PEA-NPs) decreased from 425 nm to 226 nm with the increasing degree of PAE substitution. Vitamin B2 (VB2), as a model nutrient, was encapsulated into the nanoparticles. The drug-loading content increased with increasing degree of PAE substitution. The maximum VB2 loading capacity and loading efficiency of PEA3 nanoparticles were 3.53 ± 0.03% and 91.48 ± 0.80%, respectively. The in vitro release behavior of VB2 from the PEA-NPs showed a biphasic release profile with an initial burst release of about 40-50% of VB2 in the first 10 h followed by a steady and continuous release phase for the following 50 h in PBS, pH 7.4. The human colorectal carcinoma cell line was used to investigate the cytotoxicity of PEA-NPs. Our results showed that various concentrations of nanoparticles did not cause significant cytotoxicity against cell lines at normal concentrations.
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Affiliation(s)
- Pei Zhang
- College of Marine Life Sciences, Ocean University of China, Qingdao, PR China
| | - Shi-Rui Zhao
- College of Marine Life Sciences, Ocean University of China, Qingdao, PR China
| | - Jun-Xia Li
- College of Marine Life Sciences, Ocean University of China, Qingdao, PR China
| | - Liang Hong
- College of Marine Life Sciences, Ocean University of China, Qingdao, PR China
| | - Mazhar A Raja
- College of Marine Life Sciences, Ocean University of China, Qingdao, PR China
| | - Le-Jun Yu
- College of Marine Life Sciences, Ocean University of China, Qingdao, PR China
| | - Chen-Guang Liu
- College of Marine Life Sciences, Ocean University of China, Qingdao, PR China
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23
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Das S, Pandey A, Pal S, Kolya H, Tripathy T. Green synthesis, characterization and antibacterial activity of gold nanoparticles using hydroxyethyl starch-g-poly (methylacrylate-co-sodium acrylate): A novel biodegradable graft copolymer. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.09.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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24
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Varaprasad K, Raghavendra GM, Jayaramudu T, Seo J. Nano zinc oxide-sodium alginate antibacterial cellulose fibres. Carbohydr Polym 2015; 135:349-55. [PMID: 26453887 PMCID: PMC7112416 DOI: 10.1016/j.carbpol.2015.08.078] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 08/17/2015] [Accepted: 08/25/2015] [Indexed: 11/25/2022]
Abstract
Antibacterial cellulose fibres were fabricated from nano ZnO. Nano ZnO is synthesized by precipitation method. Nano ZnO acquires hexagonal wurtzite structure. Facbricated fibres exhibit excellent antibacterial activity.
In the present study, antibacterial cellulose fibres were successfully fabricated by a simple and cost-effective procedure by utilizing nano zinc oxide. The possible nano zinc oxide was successfully synthesized by precipitation technique and then impregnated effectively over cellulose fibres through sodium alginate matrix. XRD analysis revealed the ‘rod-like’ shape alignment of zinc oxide with an interplanar d-spacing of 0.246 nm corresponding to the (1 0 1) planes of the hexagonal wurtzite structure. TEM analysis confirmed the nano dimension of the synthesized zinc oxide nanoparticles. The presence of nano zinc oxide over cellulose fibres was evident from the SEM–EDS experiments. FTIR and TGA studies exhibited their effective bonding interaction. The tensile stress–strain curves data indicated the feasibility of the fabricated fibres for longer duration utility without any significant damage or breakage. The antibacterial studies against Escherichia coli revealed the excellent bacterial devastation property. Further, it was observed that when all the parameters remained constant, the variation of sodium alginate concentration showed impact in devastating the E. coli. In overall, the fabricated nano zinc oxide–sodium alginate cellulose fibres can be effectively utilized as antibacterial fibres for biomedical applications.
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Affiliation(s)
- Kokkarachedu Varaprasad
- Centro de Investigación de Polímeros Avanzados, CIPA, Beltrán Mathieu 224, piso 2, Concepción, Chile.
| | | | - Tippabattini Jayaramudu
- Center for EAPap Actuator, Department of Mechanical Engineering, Inha University, 253 Yonghyun-Dong, Nam-Ku, Incheon 402-751, South Korea
| | - Jongchul Seo
- Department of Packaging, Yonsei University, 1 Yonseidae-gil, Wonju, Gangwon-do 220-710, South Korea
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