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Marathe K, Naik J, Maheshwari V. Synthesis, characterisation and in vitro anticancer activity of conjugated protease inhibitor-silver nanoparticles (AgNPs-PI) against human breast MCF-7 and prostate PC-3 cancer cell lines. Bioprocess Biosyst Eng 2024; 47:931-942. [PMID: 38709274 DOI: 10.1007/s00449-024-03023-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 04/13/2024] [Indexed: 05/07/2024]
Abstract
The conjugated silver nanoparticles using biomolecules have attracted great attention of researchers because physical dimensions and surface chemistry play important roles in toxicity and biocompatibility of AgNPs. Hence, in the current study, synthesis of bio-conjugated AgNPs with protein protease inhibitor (PI) isolated from Streptomyces spp. is reported. UV-visible spectra of PI and AgNPs showed stronger peaks at 280 and 405 nm, confirming the synthesis of conjugated AgNPs-PI. TEM and SEM images of AgNPs-PI showed spherical-shaped nanoparticles with a slight increase in particle size and thin amorphous layer around the surface of silver nanomaterial. Circular dichroism, FT-IR and fluorescence spectral studies confirmed AgNPs-PI conjugation. Conjugated AgNPs-PI showed excellent anticancer potential than AgNPs and protease inhibitor separately on human breast MCF-7 and prostate PC-3 cell lines. The findings revealed that surface modification of AgNPs with protein protease inhibitor stabilised the nanomaterial and increased its anticancer activity.
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Affiliation(s)
- Kiran Marathe
- University Institute of Chemical Technology, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon, 425001, MS, India.
| | - Jitendra Naik
- University Institute of Chemical Technology, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon, 425001, MS, India
| | - Vijay Maheshwari
- School of Life Sciences, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon, 425001, MS, India
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Zhang Q, Zhao Y, Yao Y, Wu N, Chen S, Xu L, Tu Y. Characteristics of hen egg white lysozyme, strategies to break through antibacterial limitation, and its application in food preservation: A review. Food Res Int 2024; 181:114114. [PMID: 38448098 DOI: 10.1016/j.foodres.2024.114114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 02/02/2024] [Accepted: 02/07/2024] [Indexed: 03/08/2024]
Abstract
Hen egg white lysozyme (HEWL) is used as a food additive in China due to its outstanding antibacterial properties. It is listed as GRAS grade (generally recognized as safe) by the United States Food and Drug Administration (FDA, US) and has been extensively researched and used in food preservation. And the industrial production of HEWL already been realized. Given the complex food system that can affect the antibacterial activity of HEWL, and the limitations of HEWL itself on Gram-negative bacteria. Based on the structure and main biological characteristics of HEWL, this paper focuses on reviewing methods to enhance the stability and antibacterial properties of HEWL. Immobilization tactics such as chemically driven self-assembly, embedding and adsorption address the restriction of poor HEWL antibacterial activity effected by external factors. Both intermolecular and intramolecular modification strategies break the bactericidal deficiencies of HEWL itself. It also comprehensively analyzes the current application status and future prospects of HEWL in the food preservation. There was limited research on the biological methods in modifying HEWL. If the HEWL is genetically engineered, it can broaden its antimicrobial spectrum, improve its other biological activities, so as to further expand its application in the food industry. At present, research on HEWL mainly focused on its antibacterial properties, whereas its application in anti-inflammatory and antioxidant effects also presented great potential.
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Affiliation(s)
- Qingqing Zhang
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang 330045, China; Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang 330045, China; Nanchang Key Laboratory of Egg Safety Production and Processing Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Yan Zhao
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang 330045, China; Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang 330045, China; Nanchang Key Laboratory of Egg Safety Production and Processing Engineering, Jiangxi Agricultural University, Nanchang 330045, China.
| | - Yao Yao
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang 330045, China; Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang 330045, China; Nanchang Key Laboratory of Egg Safety Production and Processing Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Na Wu
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang 330045, China; Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang 330045, China; Nanchang Key Laboratory of Egg Safety Production and Processing Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Shuping Chen
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang 330045, China; Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang 330045, China; Nanchang Key Laboratory of Egg Safety Production and Processing Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Lilan Xu
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang 330045, China; Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang 330045, China; Nanchang Key Laboratory of Egg Safety Production and Processing Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Yonggang Tu
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang 330045, China; Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang 330045, China; Nanchang Key Laboratory of Egg Safety Production and Processing Engineering, Jiangxi Agricultural University, Nanchang 330045, China.
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3
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Mohamed SA, Elsayed AM, Salah HA, Barakat AZ, Bassuiny RI, Abdel-Mageed HM, Abdel-Aty AM. Development of chia gum/alginate-polymer support for horseradish peroxidase immobilization and its application in phenolic removal. Sci Rep 2024; 14:1362. [PMID: 38228654 DOI: 10.1038/s41598-024-51566-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 01/06/2024] [Indexed: 01/18/2024] Open
Abstract
Chia gum's molecular structure with distinctive properties as well as the alginate-based hydrogel's three-dimensionally cross-linked structure can provide a potent matrix for immobilization of enzyme. Herein, chia gum (CG)/alginate (A)-polymeric complex was synthesized and employed as a support material for the immobilization of horseradish peroxidase (HRP). HRP was successfully immobilized on the developed ACG-polymeric support, and the highest immobilization recovery (75%) was observed at 1.0% CG and 2% A, pH 7.0, and 50 units of the enzyme. The structure, morphology, and thermal properties of the prepared ACG-HRP were demonstrated using Fourier Transform Infrared (FTIR), Scanning Electron Microscope, and Thermogravimetric (TGA) analyses. ACG-HRP showed a good reusability (60%) over ten reuses. The immobilized ACG-HRP displayed an acidic pH optimum (6.0), a higher temperature optimum (50 °C), and improved thermal stability (30-50 °C) compared to the soluble HRP at pH 7.0, 40 °C and (30-40 °C), respectively. ACG-HRP has a lower affinity for hydrogen peroxide (H2O2) and guaiacol and a higher oxidizing affinity for a number of phenolic substrates. The ACG-HRP demonstrated greater resistance to heavy metals, isopropanol, urea, Triton X-100, and urea, as well as improved efficiency for eliminating phenol and p-chlorophenol. The developed ACG-polymeric support provided improved enzyme properties, allowed the reuse of the immobilized HRP in 10 cycles, and made it promising for several biotechnological applications.
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Affiliation(s)
- Saleh A Mohamed
- Molecular Biology Department, National Research Centre, Dokki, Cairo, Egypt.
| | | | - Hala A Salah
- Molecular Biology Department, National Research Centre, Dokki, Cairo, Egypt
| | - Amal Z Barakat
- Molecular Biology Department, National Research Centre, Dokki, Cairo, Egypt
| | - Roqaya I Bassuiny
- Molecular Biology Department, National Research Centre, Dokki, Cairo, Egypt
| | | | - Azza M Abdel-Aty
- Molecular Biology Department, National Research Centre, Dokki, Cairo, Egypt
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4
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Telli FC, Yavuz M, Denizaltı S, Salman Y. Study of Radiotherapy Properties and Antimicrobial Activity of Glyconanoparticles (GNPs) Generated from Imidazolium Salts. ChemistrySelect 2023. [DOI: 10.1002/slct.202203810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Affiliation(s)
- Fatma Cetin Telli
- Chemistry Department Ege University Faculty of Science 35100 Bornova Izmir Turkey
| | - Murat Yavuz
- Chemistry Department Dicle University Faculty of Science 21280 Sur Diyarbakir Turkey
| | - Serpil Denizaltı
- Chemistry Department Ege University Faculty of Science 35100 Bornova Izmir Turkey
| | - Yesim Salman
- Chemistry Department Ege University Faculty of Science 35100 Bornova Izmir Turkey
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Zangi AR, Amiri A, Borzouee F, Bagherifar R, Pazooki P, Hamishehkar H, Javadzadeh Y. Immobilized nanoparticles-mediated enzyme therapy; promising way into clinical development. DISCOVER NANO 2023; 18:55. [PMID: 37382752 PMCID: PMC10409955 DOI: 10.1186/s11671-023-03823-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 03/06/2023] [Indexed: 06/30/2023]
Abstract
Enzyme (Enz)-mediated therapy indicated a remarkable effect in the treatment of many human cancers and diseases with an insight into clinical phases. Because of insufficient immobilization (Imb) approach and ineffective carrier, Enz therapeutic exhibits low biological efficacy and bio-physicochemical stability. Although efforts have been made to remove the limitations mentioned in clinical trials, efficient Imb-destabilization and modification of nanoparticles (NPs) remain challenging. NP internalization through insufficient membrane permeability, precise endosomal escape, and endonuclease protection following release are the primary development approaches. In recent years, innovative manipulation of the material for Enz immobilization (EI) fabrication and NP preparation has enabled nanomaterial platforms to improve Enz therapeutic outcomes and provide low-diverse clinical applications. In this review article, we examine recent advances in EI approaches and emerging views and explore the impact of Enz-mediated NPs on clinical therapeutic outcomes with at least diverse effects.
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Affiliation(s)
- Ali Rajabi Zangi
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ala Amiri
- Department of Biotechnology, Faculty of Biological Sciences, Alzahra University, Tehran, Iran
| | - Fatemeh Borzouee
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Rafieh Bagherifar
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Pouya Pazooki
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Science, Tabriz, 5166-15731, Iran
| | - Yousef Javadzadeh
- Biotechnology Research Center, and Faculty of Pharmacy, Tabriz University of Medical Science, Tabriz, 5166-15731, Iran.
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Xiong J, Cao Y, Zhao H, Chen J, Cai X, Li X, Liu Y, Xiao H, Ge J. Cooperative Antibacterial Enzyme-Ag-Polymer Nanocomposites. ACS NANO 2022; 16:19013-19024. [PMID: 36350784 DOI: 10.1021/acsnano.2c07930] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Biomacromolecules such as enzymes and proteins with bactericidal activity are promising for antibacterial applications in a mild, biocompatible, and environmentally friendly manner. However, low bactericidal efficiency has hindered its applications. Nanobiohybrids, constructed from biomacromolecules and functional nanomaterials, could enhance the function of biomacromolecules. However, the incompatibility between biological components and nanomaterials is still the major challenge of designing nanobiohybrids. Here, we rationally design lysozyme-Ag-polymer nanocomposites, which display high stability and antibacterial activity in a cooperative manner. The sufficient presence of Ag-N coordination between Ag and the polymer/protein contributed to the high stability of the nanocomposites. Compared with lysozyme and commercial silver nanoparticles (AgNPs) alone, the enzyme-Ag-polymer nanocomposites showed dramatically enhanced antibacterial activity. We propose a tightly encapsulated invasion (TEI) mechanism for a greatly improved antibacterial activity. The bacteria closely interacted with nanocomposites, and cell walls were hydrolyzed by lysozyme especially, facilitating the penetration of silver into the bacteria, and then reactive oxygen species (ROS) generated by silver to kill bacteria. In addition, the specific TEI mechanism resulted in high biocompatibility toward mammalian cells.
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Affiliation(s)
- Jiarong Xiong
- Key Lab for Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing100084, P. R. China
| | - Yufei Cao
- Key Lab for Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing100084, P. R. China
| | - Haotian Zhao
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia30332, United States
| | - Jiaqi Chen
- Key Lab for Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing100084, P. R. China
| | - Xinyi Cai
- Key Lab for Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing100084, P. R. China
| | - Xiaoyang Li
- Key Lab for Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing100084, P. R. China
| | - Yu Liu
- Key Lab for Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing100084, P. R. China
| | - Hai Xiao
- Department of Chemistry, Tsinghua University, Beijing100084, P. R. China
| | - Jun Ge
- Key Lab for Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing100084, P. R. China
- Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Shenzhen518055, P. R. China
- Institute of Biomedical Health Technology and Engineering, Shenzhen Bay Laboratory, Shenzhen518107, P. R. China
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Biogenic Synthesis of Antibacterial, Hemocompatible, and Antiplatelets Lysozyme Functionalized Silver Nanoparticles through the One-Step Process for Therapeutic Applications. Processes (Basel) 2022. [DOI: 10.3390/pr10040623] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
To evaluate silver nanoparticles’ (AgNPs) therapeutic and clinical potentials, antibacterial action, blood compatibility, and antiplatelet activities are the main concerns for toxicity profiling. Heat-denatured lysozyme-mediated formulation stabilized the AgNPs, thereby providing more bactericidal activity and blood compatibility. The study of the synthesis of AgNPs suggests the rapid and cost-effective formulation of AgNPs by one-step reaction using a 10:1 ratio of silver nitrate and lysozyme by incubating at 60 °C for two hours. Characterization of AgNPs was analyzed by UV–Visible spectroscopy, DLS, TEM, EDX, XRD, AFM, and FTIR, followed by antibacterial, hemocompatibility, and platelet aggregation testing. The average size of synthesized AgNPs was found to be 94.10 nm with 0.45 mV zeta potential and 0.293 polydispersity index by DLS. The TEM and EXD results indicated homogeneously 28.08 nm spherical-shaped pure formations of AgNPs. The XRD peaks showed the synthesis of small AgNPs with a crystallite size of 22.88 nm, while the AFM confirmed the homogeneity and smoothness of the monodispersed AgNPs. The FTIR spectra specified the coating of the lysozyme-derived amide group on the AgNPs surface, which provides stability and functionality of nanoparticles. The antibacterial activity of AgNPs was remarkable against six pathogenic bacteria and three multidrug resistance (MDR) strains (i.e., Escherichia coli, Klebsiella aerogenes, and Pseudomonas aeruginosa), which exhibited inhibition zones with diameters ranging between 13.5 ± 0.2 mm to 19.0 ± 0.3 mm. The non-hemolytic nature of the AgNPs was calculated by percentage hemolysis with four concentrations. The negative result of platelet aggregation using platelet-rich plasma suggests the antiplatelet effect of AgNPs. Only minor hemolysis of 6.17% in human erythrocytes and mild platelet aggregation of 1.98% were induced, respectively, by the use of 1000 µL of 1 mM AgNPs, which contains approximately 107.8 μg silver. The results indicated that the antiplatelet potency and non-hemolytic nature with the antibacterial action of the lysozyme functionalized AgNPs have a good chance to be used to solve in-stent restenosis and thrombosis issues of the coronary stent and may also have a possibility to use in vaccination to resolve the blood clotting problem. So, the optimized biogenic formulation of AgNPs offers promising opportunities to be used as a therapeutic agent.
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Varamini M, Zamani H, Hamedani H, Namdari S, Rastegari B. Immobilization of horseradish peroxidase on lysine-functionalized gum Arabic-coated Fe 3O 4 nanoparticles for cholesterol determination. Prep Biochem Biotechnol 2021; 52:737-747. [PMID: 34871533 DOI: 10.1080/10826068.2021.1992780] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Horseradish Peroxidase (HRP) is ranked as one of the most important industrial enzymes that is extensively used in industry. Cholesterol is routinely detected indirectly by cholesterol oxidase in the presence of O2, liberating H2O2 as a by-product. The H2O2 content is determined through the HRP activity in the presence of a redox dye, producing a red colored quinoneimine which can be measured quantitatively. Herein, we have designed a magnetic nanoparticle for reusing and easily separating HRP as the most expensive compartment for the low-cost cholesterol assay. METHODS The gum Arabic coated magnetic nanoparticles were functionalized with L-lysine linker for maintaining protein flexibility on nanoparticle. Enzyme-loaded nanoparticles were characterized by TEM, FTIR, DLS, VSM and XRD analysis. RESULTS The immobilization efficiency was ∼65% and the immobilized HRP retained 60% of its activity after 8 times reuse. The optimum pH and thermal stability shifted from 7.0 to 8.0 and 60 to 70 °C after immobilization, respectively. Storage stability of HRP was improved by 10%, at 4 °C for 60 days. Immobilized HRP showed more catalytic activity in presence of Fe2+, Ca2+ and Na+. The designed system has cholesterol detection linearity range from 0.2 to 5.0 mM and detection limit of 0.08 mM and acceptable correlation coefficient of 0.9973 and 0.9982 on sample serum using both chromogens. CONCLUSION The HRP-loaded magnetic nanoparticles are capable of being used as a cost-effective system for cholesterol determination in laboratory due to its reusability and stability benefits.
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Affiliation(s)
- Morteza Varamini
- Department of Biology, College of Sciences, Shiraz University, Shiraz, Iran.,Diagnostic Laboratory Sciences and Technology Research Center, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hajar Zamani
- Department of Biology, College of Sciences, Shiraz University, Shiraz, Iran
| | - Hale Hamedani
- Department of Biology, College of Sciences, Shiraz University, Shiraz, Iran
| | - Sepide Namdari
- Diagnostic Laboratory Sciences and Technology Research Center, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Banafsheh Rastegari
- Diagnostic Laboratory Sciences and Technology Research Center, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
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Nano-vehicles give new lease of life to existing antimicrobials. Emerg Top Life Sci 2021; 4:555-566. [PMID: 33258900 PMCID: PMC7752037 DOI: 10.1042/etls20200153] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/06/2020] [Accepted: 11/09/2020] [Indexed: 02/04/2023]
Abstract
Antibiotic resistance has become one of the greatest challenges for modern medicine, and new approaches for the treatment of bacterial infections are urgently needed to avoid widespread vulnerability again to infections that have so far been easily treatable with existing drugs. Among the many approaches investigated to overcome this challenge is the use of engineered nanostructures for the precise and targeted delivery of existing antimicrobial agents in a fashion that will potentiate their effect. This idea leans on lessons learned from pioneering research in cancer, where the targeted delivery of anti-cancer drugs to mammalian cells has been a topic for some time. In particular, new research has demonstrated that nanomaterials can be functionalised with active antimicrobials and, in some cases, with targeting molecules that potentiate the efficiency of the antimicrobials. In this mini-review, we summarise results that demonstrate the potential for nanoparticles, dendrimers and DNA nanostructures for use in antimicrobial delivery. We consider material aspects of the delivery vehicles and ways in which they can be functionalised with antibiotics and antimicrobial peptides, and we review evidence for their efficacy to kill bacteria both in vitro and in vivo. We also discuss the advantages and limitations of these materials and highlight the benefits of DNA nanostructures specifically for their versatile potential in the present context.
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10
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Almulaiky YQ, Al-Harbi SA. Preparation of a Calcium Alginate-Coated Polypyrrole/Silver Nanocomposite for Site-Specific Immobilization of Polygalacturonase with High Reusability and Enhanced Stability. Catal Letters 2021. [DOI: 10.1007/s10562-021-03631-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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11
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Alpha-amylase conjugated biogenic silver nanoparticles as innovative strategy against biofilm-forming multidrug resistant bacteria. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101784] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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12
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Active delivery of antimicrobial nanoparticles into microbial cells through surface functionalization strategies. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.03.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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13
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Surface modified electrospun poly(lactic acid) fibrous scaffold with cellulose nanofibrils and Ag nanoparticles for ocular cell proliferation and antimicrobial application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 111:110767. [PMID: 32279789 DOI: 10.1016/j.msec.2020.110767] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 02/20/2020] [Accepted: 02/20/2020] [Indexed: 12/14/2022]
Abstract
Corneal and conjunctival infections are common ocular diseases, sometimes, causing severe and refractory drug-resistant bacteria infections. Fungal keratitis is a leading cause for blindness and traditional medical treatment is unsatisfactory. Thus, there is an urge to develop a new therapy to deal with these cases. In this study, we developed surface modified poly(lactic acid) (PLA) electrospun nanofibrous membranes (EFMs) with silver nanoparticles (AgNPs) and cellulose nanofibrils (CNF) as scaffolds for cell proliferation and antimicrobial application. The AgNPs with a very low content (below 0.1%) were easily anchored on the surface of PLA EFMs by CNF, which endowed the scaffold with hydrophilicity and antibacterial ability. The in-vitro cell co-culture experiments showed that the scaffold had great biocompatibility to ocular epithelial cells, especially the scaffolds coated by CNF, which significantly proliferated cells. Furthermore, the antibacterial activity could reach >95% inhibiting Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) due to the implantation of AgNPs, and the antifungal activity was also outstanding with most of the Fusarium spp. inhibited. Hence, the developed PLA EFMs with CNF and AgNPs are promising ocular bandages to promote cell proliferation and kill infectious pathogens, exhibiting potential applications in ocular wound healing in the future.
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14
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An antimicrobial agent prepared by N-succinyl chitosan immobilized lysozyme and its application in strawberry preservation. Food Control 2020. [DOI: 10.1016/j.foodcont.2019.106829] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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15
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Yu H, Zeng P, Liang Y, Chen X, Hu H, Wen L, Chen G. A Tanshinone IIA loaded hybrid nanocomposite with enhanced therapeutic effect for otitis media. Int J Pharm 2020; 574:118846. [PMID: 31821877 DOI: 10.1016/j.ijpharm.2019.118846] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 10/10/2019] [Accepted: 11/02/2019] [Indexed: 12/14/2022]
Abstract
Otitis media, commonly known as middle ear inflammation, is among one of the most common maladies and results in significant morbidity such as loss of hearing. In view of the bacteria invasion such as Staphylococcus aureus causes the majority forms of otitis media, drug treatment generally uses antibacterial by topical or systematic approach. However, the effectiveness of antibacterial is diminishing because of the rapid emergence of antibiotic-resistant bacterial strains. Here, we designed and fabricated a silver nanoparticle (AgNPs)-based multicomponent hybrid nanocomposite termed as TSIIA @ CS/Lys @ AgNPs, which was comprised of a AgNPs core, a chitosan (CS) or lysozyme (Lys) middle layer, and a Tanshinone IIA (TSIIA) inclusion outlayer. Coating of CS or Lys to AgNPs through electrostatic interaction probably produced a core-shell nanocomplex resembling the endocarp of walnut. This design could reduce the dosage of AgNPs while maintaining antibacterial activity possibly due to the favorable interactions between nanocomplex and bacteria. The deposition of Chinese herb active component TSIIA by inclusion complexation formed the out layer of hybrid nanocomposite towards an improved antibacterial performance, which showed a therapeutic effect against acute otitis media of guinea pig comparable to the clinical commercial-used ofloxacin administrated by injection. The hybrid nanocomposite, when dispersed in poly (lactic-co-glycolic acid)/N-methyl-2-pyrrolidone (PLGA/NMP) solution as an in-situ organogel, not only maintained the therapeutic effectiveness, but also possessed the advantage of lower injection frequency compared with solution formulation. In addition, no obvious toxicity to the basilar membrane and epithelia tissue was observed after the healthy guinea pigs were treated with hybrid nanocomposite or organogel. This study provides a promising strategy to develop hybrid nanocomposite with enhanced antibacterial efficacy and also opens a new way for the establishment of efficient therapeutic systems with reduced administration frequency as substitute of antibiotics to treat otitis media.
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Affiliation(s)
- Hang Yu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Pei Zeng
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Yongshi Liang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Xiaozhu Chen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Haiyan Hu
- School of Pharmacy, Sun Yat-sen University, Guangzhou 510006, PR China
| | - Lu Wen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China.
| | - Gang Chen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou 510006, PR China.
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Synthesis and Characterization of Selenium Nanoparticles-Lysozyme Nanohybrid System with Synergistic Antibacterial Properties. Sci Rep 2020; 10:510. [PMID: 31949299 PMCID: PMC6965607 DOI: 10.1038/s41598-019-57333-7] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 12/28/2019] [Indexed: 02/01/2023] Open
Abstract
In the light of promising potency of selenium nanoparticles in biomedical applications, this is the first study to report the synergistic antibacterial activity of these nanoparticles and lysozyme. The nanohybrid system was prepared with various concentrations of each component. Resistance of Escherichia coli and Staphylococcus aureus was compared in the presence of individual Nano and Bio counterparts as well as the nanohybrid system. Upon interaction of SeNPs with Lysozyme, the nanohybrid system efficiently enhanced the antibacterial activity compared to the protein. Therefore, SeNPs play an important role in inhibition of bacterial growth at very low concentrations of protein; whereas very high amount of the protein is required to inhibit bacterial growth individually. On the other hand, lysozyme has also played a vital role in antibacterial property of SeNPs, inducing 100% inhibition at very low concentration of each component. Hence, presence of both nano and bio counterparts induced vital interplay in the Nanohybrid system. The aged samples also presented good stability of SeNPs both as the intact and complex form. Results of this effort highlight design of nanohybrid systems with synergistic antibacterial properties to overcome the emerging antibiotic resistance as well as to define fruitful applications in biomedicine and food safety.
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17
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Pudlarz AM, Ranoszek-Soliwoda K, Czechowska E, Tomaszewska E, Celichowski G, Grobelny J, Szemraj J. A Study of the Activity of Recombinant Mn-Superoxide Dismutase in the Presence of Gold and Silver Nanoparticles. Appl Biochem Biotechnol 2019; 187:1551-1568. [PMID: 30284207 PMCID: PMC6469596 DOI: 10.1007/s12010-018-2896-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 09/26/2018] [Indexed: 12/11/2022]
Abstract
Superoxide dismutase (SOD) is one of the best characterized enzyme maintaining the redox state in the cell. A bacterial expression system was used to produce human recombinant manganese SOD with a His-tag on the C-end of the protein for better purification. In addition, gold and silver nanoparticles were chemically synthesized in a variety of sizes, and then mixed with the enzyme for immobilization. Analysis by dynamic light scattering and scanning transmission electron microscopy revealed no aggregates or agglomerates of the obtained colloids. After immobilization of the protein on AuNPs and AgNPs, the conjugates were analyzed by SDS-PAGE. It was determined that SOD was adsorbed only on the gold nanoparticles. Enzyme activity was analyzed in colloids of the gold and silver nanoparticles bearing SOD. The presence of a nanoparticle did not affect enzyme activity; however, the amount of protein and size of the gold nanoparticle did influence the enzymatic activity of the conjugate. Our findings confirm that active recombinant human superoxide dismutase can be produced using a bacterial expression system, and that the enzyme can be immobilized on metal nanoparticles. The interaction between enzymes and metal nanoparticles requires further investigation.
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Affiliation(s)
- Agnieszka Małgorzata Pudlarz
- Department of Medical Biochemistry, Faculty of Health Sciences with the Division of Nursing and Midwifery, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland.
| | - Katarzyna Ranoszek-Soliwoda
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163, 90-236, Lodz, Poland
| | - Ewa Czechowska
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163, 90-236, Lodz, Poland
| | - Emilia Tomaszewska
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163, 90-236, Lodz, Poland
| | - Grzegorz Celichowski
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163, 90-236, Lodz, Poland
| | - Jarosław Grobelny
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163, 90-236, Lodz, Poland
| | - Janusz Szemraj
- Department of Medical Biochemistry, Faculty of Health Sciences with the Division of Nursing and Midwifery, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland
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18
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Alshawafi WM, Aldhahri M, Almulaiky YQ, Salah N, Moselhy SS, Ibrahim IH, El-Shishtawy RM, Mohamed SA. Immobilization of horseradish peroxidase on PMMA nanofibers incorporated with nanodiamond. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:S973-S981. [PMID: 30314411 DOI: 10.1080/21691401.2018.1522321] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
In the present study, nanodiamond (ND) was blended with polymethyl methacrylate (PMMA) and then electrospun into nanofibers (nfPMMA-ND) for the immobilization of horseradish peroxidase (HRP). The maximum immobilization efficiency of HRP (96%) was detected at 10% ND and pH 7.0. ATR-FTIR, SEM and TEM were used to characterize the immobilized enzyme. The immobilized enzyme retained 60% of its initial activity after ten reuses. The pH was shifted from 7.0 for soluble HRP to 7.5 for the immobilized enzyme. The soluble HRP had an optimum temperature of 30 °C, whereas this temperature was shifted to 40 °C for the immobilized enzyme. The substrate analogs were oxidized by immobilized HRP with higher efficiencies than those of soluble HRP. The kinetic results showed that the soluble HRP had more affinity toward guiacol and H2O2 than immobilized HRP. The effect of metal ions on soluble and immobilized HRP was studied. The immobilized HRP was markedly more stable when it exposed to urea, isopropanol, butanol and heptane compared with the soluble enzyme. The immobilized HRP exhibited high resistance to proteolysis by trypsin than that of soluble enzyme. In conclusion, the nfPMMA-ND-HRP could be employed in several applications such as biosensor, biomedical and bioremediation.
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Affiliation(s)
- Waleed M Alshawafi
- a Biochemistry Department, Faculty of Science , King Abdulaziz University , Jeddah , Saudi Arabia.,b Centre of Nanotechnology , King AbdulAziz University , Jeddah , Saudi Arabia.,c Departments of Chemistry, Faculty of Applied Sciences , Taiz University , Taiz , Yemen
| | - Musab Aldhahri
- a Biochemistry Department, Faculty of Science , King Abdulaziz University , Jeddah , Saudi Arabia.,b Centre of Nanotechnology , King AbdulAziz University , Jeddah , Saudi Arabia
| | - Yaaser Q Almulaiky
- c Departments of Chemistry, Faculty of Applied Sciences , Taiz University , Taiz , Yemen.,d Department of Biochemistry, Faculty of Science , University of Jeddah , Jeddah , Saudi Arabia.,e Center of University of Jeddah for Science and Medical research , University of Jeddah , Jeddah , Saudi Arabia
| | - Numan Salah
- b Centre of Nanotechnology , King AbdulAziz University , Jeddah , Saudi Arabia
| | - Said S Moselhy
- a Biochemistry Department, Faculty of Science , King Abdulaziz University , Jeddah , Saudi Arabia.,f Biochemistry Department, Faculty of science , Ain Shams University , Cairo , Egypt
| | - Ibrahim H Ibrahim
- a Biochemistry Department, Faculty of Science , King Abdulaziz University , Jeddah , Saudi Arabia
| | - Reda M El-Shishtawy
- g Chemistry Department, Faculty of Science , King Abdulaziz University , Jeddah , Saudi Arabia.,h Dyeing, Printing and Textile Auxiliaries Department, Textile Research Division , National Research Centre , Cairo , Egypt
| | - Saleh A Mohamed
- a Biochemistry Department, Faculty of Science , King Abdulaziz University , Jeddah , Saudi Arabia.,i Molecular Biology Department , National Research Centre , Cairo , Egypt
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19
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Mohamed SA, Al-Harbi MH, Almulaiky YQ, Ibrahim IH, Salah HA, El-Badry MO, Abdel-Aty AM, Fahmy AS, El-Shishtawy RM. Immobilization of Trichoderma harzianum α-amylase on PPyAgNp/Fe3O4-nanocomposite: chemical and physical properties. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:201-206. [DOI: 10.1080/21691401.2018.1453828] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Saleh A. Mohamed
- Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Molecular Biology Department, National Research Centre, Dokki, Cairo, Egypt
| | - Majed H. Al-Harbi
- Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Yaaser Q. Almulaiky
- Biochemistry Department, Faculty of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Ibrahim H. Ibrahim
- Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hala A. Salah
- Molecular Biology Department, National Research Centre, Dokki, Cairo, Egypt
| | | | - Azza M. Abdel-Aty
- Molecular Biology Department, National Research Centre, Dokki, Cairo, Egypt
| | - Afaf S. Fahmy
- Molecular Biology Department, National Research Centre, Dokki, Cairo, Egypt
| | - Reda M. El-Shishtawy
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Dyeing, Printing and Textile Auxiliaries Department, Textile Research Division, National Research Centre, Dokki, Cairo, Egypt
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20
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Jiang S, Li M, Chang R, Xiong L, Sun Q. In vitro inhibition of pancreatic α-amylase by spherical and polygonal starch nanoparticles. Food Funct 2018; 9:355-363. [DOI: 10.1039/c7fo01381g] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nanoparticles are novel and fascinating materials for tuning the activities of enzymes.
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Affiliation(s)
- Suisui Jiang
- College of Food Science and Engineering
- Qingdao Agricultural University
- China
| | - Man Li
- College of Food Science and Engineering
- Qingdao Agricultural University
- China
| | - Ranran Chang
- College of Food Science and Engineering
- Qingdao Agricultural University
- China
| | - Liu Xiong
- College of Food Science and Engineering
- Qingdao Agricultural University
- China
| | - Qingjie Sun
- College of Food Science and Engineering
- Qingdao Agricultural University
- China
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21
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Enhanced antibacterial activity of lysozyme immobilized on chitin nanowhiskers. Food Chem 2017; 221:1507-1513. [DOI: 10.1016/j.foodchem.2016.10.143] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 10/08/2016] [Accepted: 10/28/2016] [Indexed: 11/23/2022]
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22
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Yang J, Chang R, Ge S, Zhao M, Liang C, Xiong L, Sun Q. The inhibition effect of starch nanoparticles on tyrosinase activity and its mechanism. Food Funct 2016; 7:4804-4815. [DOI: 10.1039/c6fo01228k] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Starch nanoparticles exhibited remarkable inhibitory effects on tyrosinase and a synergistic inhibitory effect on tyrosinase and dopa oxidation was observed.
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Affiliation(s)
- Jie Yang
- College of Food Science and Engineering
- Qingdao Agricultural University
- Qingdao
- China
| | - Ranran Chang
- College of Food Science and Engineering
- Qingdao Agricultural University
- Qingdao
- China
| | - Shengju Ge
- College of Food Science and Engineering
- Qingdao Agricultural University
- Qingdao
- China
| | - Mei Zhao
- College of Food Science and Engineering
- Qingdao Agricultural University
- Qingdao
- China
| | - Caifeng Liang
- College of Food Science and Engineering
- Qingdao Agricultural University
- Qingdao
- China
| | - Liu Xiong
- College of Food Science and Engineering
- Qingdao Agricultural University
- Qingdao
- China
| | - Qingjie Sun
- College of Food Science and Engineering
- Qingdao Agricultural University
- Qingdao
- China
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23
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Tripathy N, Ahmad R, Bang SH, Min J, Hahn YB. Tailored lysozyme-ZnO nanoparticle conjugates as nanoantibiotics. Chem Commun (Camb) 2015; 50:9298-301. [PMID: 25000144 DOI: 10.1039/c4cc03712j] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Covalently attached lysozyme-ZnO nanoparticle (L-ZNP) conjugates were synthesized by a low temperature solution route. Tailored L-ZNP conjugates exhibit pronounced antibacterial features against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus).
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Affiliation(s)
- Nirmalya Tripathy
- Dept. of BIN Fusion Technology, Dept. of Polymer-Nano Science & Technology and Polymer BIN Research Center, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju 561-756, Republic of Korea
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24
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Aktepe N, Kocyigit A, Yukselten Y, Taskin A, Keskin C, Celik H. Increased DNA damage and oxidative stress among silver jewelry workers. Biol Trace Elem Res 2015; 164:185-91. [PMID: 25575665 DOI: 10.1007/s12011-014-0224-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 12/29/2014] [Indexed: 01/11/2023]
Abstract
Silver has long been valued as a precious metal, and it is used to make ornaments, jewelry, high-value tableware, utensils, and currency coins. Human exposures to silver and silver compounds can occur oral, dermal, or by inhalation. In this study, we investigated genotoxic and oxidative effects of silver exposure among silver jewelry workers. DNA damage in peripheral mononuclear leukocytes was measured by using the comet assay. Serum total antioxidative status (TAS), total oxidative status (TOS), total thiol contents, and ceruloplasmin levels were measured by using colorimetric methods among silver jewelry workers. Moreover, oxidative stress index (OSI) was calculated. Results were compared with non-exposed healthy subjects. The mean values of mononuclear leukocyte DNA damage were significantly higher than control subjects (p < 0.001). Serum TOS, OSI, and ceruloplasmin levels were also found to be higher in silver particles exposed group than those of non-exposed group (p < 0.001, p < 0.001, p < 0.01, respectively). However, serum TAS levels and total thiol contents of silver exposed group were found significantly lower (p < 0.05, p < 0.001, respectively). Exposure to silver particles among silver jewelry workers caused oxidative stress and accumulation of severe DNA damage.
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Affiliation(s)
- Necmettin Aktepe
- Department of Nursing, Mardin Artuklu University School of Health, Mardin, Turkey,
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25
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Lambadi PR, Sharma TK, Kumar P, Vasnani P, Thalluri SM, Bisht N, Pathania R, Navani NK. Facile biofunctionalization of silver nanoparticles for enhanced antibacterial properties, endotoxin removal, and biofilm control. Int J Nanomedicine 2015; 10:2155-71. [PMID: 25834431 PMCID: PMC4370915 DOI: 10.2147/ijn.s72923] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Infectious diseases cause a huge burden on healthcare systems worldwide. Pathogenic bacteria establish infection by developing antibiotic resistance and modulating the host’s immune system, whereas opportunistic pathogens like Pseudomonas aeruginosa adapt to adverse conditions owing to their ability to form biofilms. In the present study, silver nanoparticles were biofunctionalized with polymyxin B, an antibacterial peptide using a facile method. The biofunctionalized nanoparticles (polymyxin B-capped silver nanoparticles, PBSNPs) were assessed for antibacterial activity against multiple drug-resistant clinical strain Vibrio fluvialis and nosocomial pathogen P. aeruginosa. The results of antibacterial assay revealed that PBSNPs had an approximately 3-fold higher effect than the citrate-capped nanoparticles (CSNPs). Morphological damage to the cell membrane was followed by scanning electron microscopy, testifying PBSNPs to be more potent in controlling the bacterial growth as compared with CSNPs. The bactericidal effect of PBSNPs was further confirmed by Live/Dead staining assays. Apart from the antibacterial activity, the biofunctionalized nanoparticles were found to resist biofilm formation. Electroplating of PBSNPs onto stainless steel surgical blades retained the antibacterial activity against P. aeruginosa. Further, the affinity of polymyxin for endotoxin was exploited for its removal using PBSNPs. It was found that the prepared nanoparticles removed 97% of the endotoxin from the solution. Such multifarious uses of metal nanoparticles are an attractive means of enhancing the potency of antimicrobial agents to control infections.
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Affiliation(s)
| | - Tarun Kumar Sharma
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, India
| | - Piyush Kumar
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, India
| | - Priyanka Vasnani
- Centre of Nanotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, India
| | | | - Neha Bisht
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, India
| | - Ranjana Pathania
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, India ; Centre of Nanotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, India
| | - Naveen Kumar Navani
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, India ; Centre of Nanotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, India
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