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Velusamy P, Su CH, Kannan K, Kumar GV, Anbu P, Gopinath SCB. Surface engineered iron oxide nanoparticles as efficient materials for antibiofilm application. Biotechnol Appl Biochem 2021; 69:714-725. [PMID: 33751641 DOI: 10.1002/bab.2146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/04/2021] [Indexed: 01/07/2023]
Abstract
Overuse of antibiotics has led to the development of multi drug resistant strains. Antibiotic resistance is a major drawback in the biomedical field since medical implants are prone to infection by biofilms of antibiotic resistant strains of bacteria. With increasing prevalence of antibiotic resistant pathogenic bacteria, the search for alternative method is utmost importance. In this regard, magnetic nanoparticles are commonly used as a substitute for antibiotics that can circumvent the problem of biofilms growth on the surface of biomedical implants. Iron oxide nanoparticles (IONPs) have unique magnetic properties that can be exploited in various ways in the biomedical applications. IONPs are engineered employing different methods to induce surface functionalization that include the use of polyethyleneimine and oleic acid. IONPs have a mechanical effect on biofilms when in presence of an external magnet. In this review, a detailed description of surface engineered magnetic nanoparticles as ideal antibacterial agents is provided, accompanied by various methods of literature review. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Palaniyandi Velusamy
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, 603 203, Chengalpattu District, Kattankulathur, Tamil Nadu, India
| | - Chia-Hung Su
- Department of Chemical Engineering, Ming Chi University of Technology, Taishan, 24301, Taiwan
| | - Kiruba Kannan
- Department of Biotechnology, University of Madras, Guindy Campus, Chennai, Tamil Nadu, 600 025, India
| | - Govindarajan Venkat Kumar
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, 603 203, Chengalpattu District, Kattankulathur, Tamil Nadu, India
| | - Periasmy Anbu
- Department of Biological Engineering, Inha University, Incheon, South Korea
| | - Subash C B Gopinath
- Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis, Arau, Perlis, 02600, Malaysia.,Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar, Perlis, 01000, Malaysia
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Kusumaningsih T, Prasetyo WE, Firdaus M. A greatly improved procedure for the synthesis of an antibiotic-drug candidate 2,4-diacetylphloroglucinol over silica sulphuric acid catalyst: multivariate optimisation and environmental assessment protocol comparison by metrics. RSC Adv 2020; 10:31824-31837. [PMID: 35518163 PMCID: PMC9056496 DOI: 10.1039/d0ra05424k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 08/10/2020] [Indexed: 01/06/2023] Open
Abstract
Efforts toward the development of a straightforward greener Gram-scale synthesis of the antibiotic compound 2,4-diacetylphloroglucinol (DAPG) have been developed. This beneficial procedure was accomplished through the Friedel–Crafts acylation of phloroglucinol over inexpensive heterogeneous silica sulphuric acid (SSA) catalyst via ultrasound-assisted (US) synthesis under solvent-free condition. The influences of various parameters such as temperature, catalyst loading, and reaction time on the reaction performance were analysed using a multivariate statistical modelling response surface methodology (RSM). A high yield of DAPG (95%) was achieved at 60 °C after 15–20 min reaction with the presence of 10% (w/w) SSA as the catalyst. Column chromatography-free and a Gram scale-up reaction also exhibited the practical applicability of this newly developed protocol. The SSA catalyst was recovered and recycled up to 10 consecutive runs with no appreciable loss of activity. A plausible mechanism for the Friedel–Crafts acylation of phloroglucinol is proposed. Moreover, an environmental assessment has been carried out over this present method and compared with several established literature using the EATOS software and the Andraos algorithm to assess the consumption of the substrates, solvents, catalysts, and the production of coupled products or by-products. In addition, their energy consumptions were also determined. The data collected showed that the present method is the most promising one, characterised by the highest environmental impact profile against all the other reported methods. The physicochemical properties of the synthesised DAPG were assessed and exhibited reasonable oral bioavailability drug property as determined by Lipinski's rules. A greatly improved procedure for the synthesis of antibiotic 2,4-diacetylphloroglucinol has been developed via a newly advanced synthetic method.![]()
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Affiliation(s)
- Triana Kusumaningsih
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sebelas Maret University Jl. Ir. Sutami No. 36A Surakarta 57126 Indonesia
| | - Wahyu Eko Prasetyo
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sebelas Maret University Jl. Ir. Sutami No. 36A Surakarta 57126 Indonesia
| | - Maulidan Firdaus
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sebelas Maret University Jl. Ir. Sutami No. 36A Surakarta 57126 Indonesia
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Levenfors JJ, Nord C, Bjerketorp J, Ståhlberg J, Larsson R, Guss B, Öberg B, Broberg A. Antibacterial pyrrolidinyl and piperidinyl substituted 2,4-diacetylphloroglucinols from Pseudomonas protegens UP46. J Antibiot (Tokyo) 2020; 73:739-747. [PMID: 32439988 DOI: 10.1038/s41429-020-0318-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/24/2020] [Accepted: 04/28/2020] [Indexed: 12/12/2022]
Abstract
In the search for new antibiotic compounds, fractionation of Pseudomonas protegens UP46 culture extracts afforded several known Pseudomonas compounds, including 2,4-diacetylphloroglucinol (DAPG), as well as two new antibacterial alkaloids, 6-(pyrrolidin-2-yl)DAPG (1) and 6-(piperidin-2-yl)DAPG (2). The structures of 1 and 2 were determined by nuclear magnetic resonance spectroscopy and mass spectrometry. Compounds 1 and 2 were found to have antibacterial activity against the Gram-positive bacteria Staphylococcus aureus and Bacillus cereus, with minimal inhibitory concentration (MIC) 2 and 4 μg ml-1, respectively, for 1, and 2 μg ml-1 for both pathogens for 2. The MICs for 1 and 2, against all tested Gram-negative bacteria, were >32 μg ml-1. The half maximal inhibitory concentrations against HepG2 cells for compounds 1 and 2 were 11 and 18 μg ml-1, respectively, which suggested 1 and 2 be too toxic for further evaluation as possible new antibacterial drugs. Stable isotope labelling experiments showed the pyrrolidinyl group of 1 to originate from ornithine and the piperidinyl group of 2 to originate from lysine. The P. protegens acetyl transferase (PpATase) is involved in the biosynthesis of monoacetylphloroglucinol and DAPG. No optical rotation was detected for 1 or 2, and a possible reason for this was investigated by studying if the PpATase may catalyse a stereo-non-specific introduction of the pyrrolidinyl/piperidinyl group in 1 and 2, but unless the PpATase can be subjected to major conformational changes, the enzyme cannot be involved in this reaction. The PpATase is, however, likely to catalyse the formation of 2,4,6-triacetylphloroglucinol from DAPG.
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Affiliation(s)
- Jolanta J Levenfors
- Department of Molecular Sciences, Uppsala BioCenter, Swedish University of Agricultural Sciences, P.O. Box 7015, SE-750 07, Uppsala, Sweden.,Ultupharma AB, Södra Rudbecksgatan 13, SE-752 36, Uppsala, Sweden
| | - Christina Nord
- Department of Molecular Sciences, Uppsala BioCenter, Swedish University of Agricultural Sciences, P.O. Box 7015, SE-750 07, Uppsala, Sweden
| | - Joakim Bjerketorp
- Department of Molecular Sciences, Uppsala BioCenter, Swedish University of Agricultural Sciences, P.O. Box 7015, SE-750 07, Uppsala, Sweden.,Ultupharma AB, Södra Rudbecksgatan 13, SE-752 36, Uppsala, Sweden
| | - Jerry Ståhlberg
- Department of Molecular Sciences, Uppsala BioCenter, Swedish University of Agricultural Sciences, P.O. Box 7015, SE-750 07, Uppsala, Sweden
| | - Rolf Larsson
- Department of Medical Sciences, Uppsala University, SE-751 85, Uppsala, Sweden
| | - Bengt Guss
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, P.O. Box 7036, SE-750 07, Uppsala, Sweden
| | - Bo Öberg
- Ultupharma AB, Södra Rudbecksgatan 13, SE-752 36, Uppsala, Sweden.,Department of Medicinal Chemistry, Uppsala University, P.O. Box 574, SE-751 23, Uppsala, Sweden
| | - Anders Broberg
- Department of Molecular Sciences, Uppsala BioCenter, Swedish University of Agricultural Sciences, P.O. Box 7015, SE-750 07, Uppsala, Sweden.
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Fu L, Wang Z, Dhankher OP, Xing B. Nanotechnology as a new sustainable approach for controlling crop diseases and increasing agricultural production. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:507-519. [PMID: 31270541 DOI: 10.1093/jxb/erz314] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 06/27/2019] [Indexed: 05/29/2023]
Abstract
Climate change will negatively affect crop production by exacerbating the incidence of disease and decreasing the efficacy of conventional approaches to disease control. Nanotechnology is a promising new strategy for plant disease management that has many advantages over conventional products and approaches, such as better efficacy, reduced input requirements, and lower eco-toxicity. Studies on crop plants using various nanomaterials (NMs) as protective agents have produced promising results. This review focuses on the use of NMs in disease management through three different mechanisms: (i) as antimicrobial agents; (ii) as biostimulants that induce plant innate immunity; and (iii) as carriers for active ingredients such as pesticides, micronutrients, and elicitors. The potential benefits of nanotechnology are considered, together with the role that NMs might play in future disease management and crop adaptation measures.
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Affiliation(s)
- Lin Fu
- Institute of Environmental Processes and Pollution Control, and School of Environment and Civil Engineering, Jiangnan University, Wuxi, China
| | - Zhenyu Wang
- Institute of Environmental Processes and Pollution Control, and School of Environment and Civil Engineering, Jiangnan University, Wuxi, China
| | - Om Parkash Dhankher
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, USA
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, USA
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Wang JZ, Yan CH, Zhang XR, Tu QB, Xu Y, Sheng S, Wu FA, Wang J. A novel nanoparticle loaded with methyl caffeate and caffeic acid phenethyl ester against Ralstonia solanacearum—a plant pathogenic bacteria. RSC Adv 2020; 10:3978-3990. [PMID: 35492651 PMCID: PMC9049244 DOI: 10.1039/c9ra09441e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 12/24/2019] [Indexed: 11/23/2022] Open
Abstract
Developing a novel agent and understanding the interaction model between multipolymer nanoparticles and bacteria could be worthwhile to induce the protection of crops with the prevalence of frequent hazards because of the use of pesticides and chemical resistance. Unlike metal nanoparticles, multipolymer nanoparticles have bacteriostatic properties against Ralstonia solanacearum that can trigger bacterial wilt by infecting the plant. Therefore, a novel poly(lactic-co-glycolic acid) nanoparticle containing caffeic acid phenethyl ester (CAPE) and methyl caffeate (MC) was prepared with the sustained-release property (for 10 d at pH 6.5); here, 50% of the cumulative release rate was achieved. It was observed that the cytomembrane of R. solanacearum was jeopardized by the nanoparticle by the creation of large holes on the bacterial surface. The nanoparticle has an approximate EC50 value of 0.285 mg mL−1 with active pharmaceutical ingredients (APIs), while the drug dosage could be reduced by 2/3. Furthermore, to reveal the possible mechanism of interaction between the multipolymer nanoparticles and bacteria, a formidable inhibition effect was observed; the pathogenicity-related genes, namely, phcA, phcB, pehC, egl, pilT, and polA, of R. solanacearum were downregulated by 1/2, 1/42, 1/13, 1/6, 1/2, and 1/8, respectively, showing significant effects on the major virulence-related genes. Hence, a novel nanoparticle with excellent antibacterial and sustained-release properties has been prepared, possessing the potential to replace chemical pesticides and serve as a new control strategy for mulberry blight disease. Developing a novel agent and understanding an interaction model between multipolymer nanoparticles and bacteria could be worthwhile to induce the protection of crops with the prevalence of frequent hazards because of the use of chemical pesticides.![]()
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Affiliation(s)
- Jin-Zheng Wang
- School of Biotechnology
- Jiangsu University of Science and Technology
- Zhenjiang 212018
- PR China
| | - Cheng-Hai Yan
- School of Biotechnology
- Jiangsu University of Science and Technology
- Zhenjiang 212018
- PR China
| | - Xiao-Rui Zhang
- School of Biotechnology
- Jiangsu University of Science and Technology
- Zhenjiang 212018
- PR China
| | - Qing-Bo Tu
- School of Biotechnology
- Jiangsu University of Science and Technology
- Zhenjiang 212018
- PR China
| | - Yan Xu
- School of Biotechnology
- Jiangsu University of Science and Technology
- Zhenjiang 212018
- PR China
- Sericultural Research Institute
| | - Sheng Sheng
- School of Biotechnology
- Jiangsu University of Science and Technology
- Zhenjiang 212018
- PR China
- Sericultural Research Institute
| | - Fu-An Wu
- School of Biotechnology
- Jiangsu University of Science and Technology
- Zhenjiang 212018
- PR China
- Sericultural Research Institute
| | - Jun Wang
- School of Biotechnology
- Jiangsu University of Science and Technology
- Zhenjiang 212018
- PR China
- Sericultural Research Institute
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