1
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Mohy Eldin A, Hossam N. Microbial surfactants: characteristics, production and broader application prospects in environment and industry. Prep Biochem Biotechnol 2023; 53:1013-1042. [PMID: 37651735 DOI: 10.1080/10826068.2023.2175364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Microbial surfactants are green molecules with high surface activities having the most promising advantages over chemical surfactants including their ability to efficiently reducing surface and interfacial tension, nontoxic emulsion-based formulations, biocompatibility, biodegradability, simplicity of preparation from low cost materials such as residual by-products and renewable resources at large scales, effectiveness and stabilization under extreme conditions and broad spectrum antagonism of pathogens to be part of the biocontrol strategy. Thus, biosurfactants are universal tools of great current interest. The present work describes the major types and microbial origin of surfactants and their production optimization from agro-industrial wastes in the batch shake-flasks and bioreactor systems through solid-state and submerged fermentation industries. Various downstream strategies that had been developed to extract and purify biosurfactants are discussed. Further, the physicochemical properties and functional characteristics of biosurfactants open new future prospects for the development of efficient and eco-friendly commercially successful biotechnological product compounds with diverse potential applications in environment, industry, biomedicine, nanotechnology and energy-saving technology as well.
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Affiliation(s)
- Ahmed Mohy Eldin
- Department of Microbiology, Soils, Water and Environmental Research Institute (SWERI), Agricultural Research Center (ARC), Giza, Egypt
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2
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Pal S, Chatterjee N, Das AK, McClements DJ, Dhar P. Sophorolipids: A comprehensive review on properties and applications. Adv Colloid Interface Sci 2023; 313:102856. [PMID: 36827914 DOI: 10.1016/j.cis.2023.102856] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 01/27/2023] [Accepted: 02/04/2023] [Indexed: 02/11/2023]
Abstract
Sophorolipids are surface-active glycolipids produced by several non-pathogenic yeast species and are widely used as biosurfactants in several industrial applications. Sophorolipids provide a plethora of benefits over chemically synthesized surfactants for certain applications like bioremediation, oil recovery, and pharmaceuticals. They are, for instance less toxic, more benign and environment friendly in nature, biodegradable, freely adsorb to different surfaces, self-assembly in hydrated solutions, robustness for industrial applications etc. These miraculous properties result in valuable physicochemical attributes such as low critical micelle concentrations (CMCs), reduced interfacial surface tension, and capacity to dissolve non-polar components. Moreover, they exhibit a diverse range of physicochemical, functional, and biological attributes due to their unique molecular composition and structure. In this article, we highlight the physico-chemical properties of sophorolipids, how these properties are exploited by the human community for extensive benefits and the conditions which lead to their unique tailor-made structures and how they entail their interfacial behavior. Besides, we discuss the advantages and disadvantages associated with the use of these sophorolipids. We also review their physiological and functional attributes, along with their potential commercial applications, in real-world scenario. Biosurfactants are compared to their man-made equivalents to show the variations in structure-property correlations and possible benefits. Those attempting to manufacture purported natural or green surfactant with innovative and valuable qualities can benefit from an understanding of biosurfactant features structured along the same principles. The uniqueness of this review article is the detailed physico-chemical study of the sophorolipid biosurfactant and how these properties helps in their usage and detailed explicit study of their applications in the current scenario and also covering their pros and cons.
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Affiliation(s)
- Srija Pal
- Laboratory of Food Science and Technology, Food and Nutrition Division, University of Calcutta, 20B Judges Court Road, Kolkata 700027, West Bengal, India
| | - Niloy Chatterjee
- Laboratory of Food Science and Technology, Food and Nutrition Division, University of Calcutta, 20B Judges Court Road, Kolkata 700027, West Bengal, India; Centre for Research in Nanoscience & Nanotechnology, University of Calcutta, JD 2, Sector III, Salt Lake City, Kolkata 700 098, West Bengal, India
| | - Arun K Das
- Eastern Regional Station, ICAR-IVRI, 37 Belgachia Road, Kolkata 700037, West Bengal, India
| | - David Julian McClements
- Department of Food Science, University of Massachusetts Amherst, Amherst, MA 01003, USA; Department of Food Science & Bioengineering, Zhejiang Gongshang University, 18 Xuezheng Street, Hangzhou, Zhejiang 310018, China
| | - Pubali Dhar
- Laboratory of Food Science and Technology, Food and Nutrition Division, University of Calcutta, 20B Judges Court Road, Kolkata 700027, West Bengal, India; Centre for Research in Nanoscience & Nanotechnology, University of Calcutta, JD 2, Sector III, Salt Lake City, Kolkata 700 098, West Bengal, India.
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3
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A comprehensive review on natural occurrence, synthesis and biological activities of glycolipids. Carbohydr Res 2022; 516:108556. [DOI: 10.1016/j.carres.2022.108556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 03/30/2022] [Accepted: 04/05/2022] [Indexed: 01/10/2023]
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4
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Microrheology to Understand the Viscosity Behavior of a Sophorolipid Biosurfactant. COLLOIDS AND INTERFACES 2022. [DOI: 10.3390/colloids6010003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
The microstructure of the aqueous solutions of purified acidic Sophorolipid (SL) has previously been studied using highly sophisticated methods such as SANS and Cryo-TEM. We were interested in whether (a) the main findings also apply to commercially available SL (which is a mixture of acidic and lactonic SL) and (b) more readily available methods such as DLS can be used to gain insight into the molecular aggregation of SL. Our work was motivated by the increasing interest in biosurfactants for applications in personal and household care. Moreover, the origin behind the more or less lack of rheological response to changes in pH is of practical relevance, as it is somewhat unusual for a carboxylate-group containing surfactant. By using DLS microrheology, we could elucidate the aggregation structure and dynamics of the surfactant on a microscopic scale. Surprisingly, the different degrees of protonation only impacted the microscopic properties such as exchange kinetics and the plateau values of the storage moduli.
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5
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Nitschke M, Marangon CA. Microbial surfactants in nanotechnology: recent trends and applications. Crit Rev Biotechnol 2021; 42:294-310. [PMID: 34167395 DOI: 10.1080/07388551.2021.1933890] [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: 10/21/2022]
Abstract
The interest in nano-sized materials to develop novel products has increased exponentially in the last decade, together with the search for green methods for their synthesis. An alternative to contribute to a more sustainable approach is the use of microbial-derived molecules to assist nanomaterial synthesis. In this sense, biosurfactants (BSs) have emerged as eco-friendly substitutes in nano-sized materials preparation. The inherent amphiphilic and self-assembly character of BSs associated with their low eco-toxicity, biodegradability, biocompatibility, structural diversity, biological activity, and production from renewable resources are potential advantages over chemically-derived surfactants. In nanotechnology, these versatile molecules play multiple roles. In nanoparticle (NP) synthesis, they act as capping and reducing agents and they also provide self-assembly structures to encapsulation, functionalization, or templates and act as emulsifiers in nanoemulsions. Moreover, BSs can also play as active compounds owing to their intrinsic biological properties. This review presents the recent trends in the development of BS-based nanostructures and their biomedical and environmental applications. Fundamental aspects regarding their antimicrobial and anticancer activities are also discussed.
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Affiliation(s)
- Marcia Nitschke
- Departamento Físico-Química, Instituto de Química de São Carlos (IQSC) - USP, São Carlos, Brazil
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6
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da Silva AF, Banat IM, Giachini AJ, Robl D. Fungal biosurfactants, from nature to biotechnological product: bioprospection, production and potential applications. Bioprocess Biosyst Eng 2021; 44:2003-2034. [PMID: 34131819 PMCID: PMC8205652 DOI: 10.1007/s00449-021-02597-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 06/01/2021] [Indexed: 11/24/2022]
Abstract
Biosurfactants are in demand by the global market as natural commodities that can be added to commercial products or use in environmental applications. These biomolecules reduce the surface/interfacial tension between fluid phases and exhibit superior stability to chemical surfactants under different physico-chemical conditions. Biotechnological production of biosurfactants is still emerging. Fungi are promising producers of these molecules with unique chemical structures, such as sophorolipids, mannosylerythritol lipids, cellobiose lipids, xylolipids, polyol lipids and hydrophobins. In this review, we aimed to contextualize concepts related to fungal biosurfactant production and its application in industry and the environment. Concepts related to the thermodynamic and physico-chemical properties of biosurfactants are presented, which allows detailed analysis of their structural and application. Promising niches for isolating biosurfactant-producing fungi are presented, as well as screening methodologies are discussed. Finally, strategies related to process parameters and variables, simultaneous production, process optimization through statistical and genetic tools, downstream processing and some aspects of commercial products formulations are presented.
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Affiliation(s)
- André Felipe da Silva
- Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil.,Bioprocess and Biotechnology Engineering Undergraduate Program, Federal University of Tocantins (UFT), Gurupi, TO, Brazil
| | - Ibrahim M Banat
- School of Biomedical Sciences, Faculty of Life and Health Sciences, Ulster University, Coleraine, UK
| | - Admir José Giachini
- Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil
| | - Diogo Robl
- Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil.
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7
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Effect of sophorolipid on the curcumin-loaded ternary composite nanoparticles self-assembled from zein and chondroitin sulfate. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106493] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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8
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Dhar P, Havskjold H, Thornhill M, Roelants S, Soetaert W, Kota HR, Chernyshova I. Toward green flotation: Interaction of a sophorolipid biosurfactant with a copper sulfide. J Colloid Interface Sci 2020; 585:386-399. [PMID: 33307307 DOI: 10.1016/j.jcis.2020.11.079] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 11/15/2020] [Accepted: 11/23/2020] [Indexed: 01/30/2023]
Abstract
The United Nations' Sustainable Development Goals have sparked growing interest in biosurfactants from many surfactant-loaded industries including those utilizing froth flotation for mineral separation. However, the interaction of biosurfactants with mineral surfaces is currently poorly understood. We bridge this gap by studying adsorption of a yeast-derived bola acidic sophorolipid (ASL) biosurfactant on djurleite (Cu1.94S). The methods used include Hallimond flotation, contact angle, adsorption isotherm, zeta potential, leaching measurements, and X-ray photoelectron spectroscopy (XPS). To facilitate the interpretation of the adsorption results, we characterize the activity of ASL at the air-water interface and measure its critical micelle concentration (CMC) at different pH using static surface tension. We find ASL to be a multifunctional surfactant with an unusual, pH-sensitive interfacial behavior. At the air-water interface, ASL is most active at pH 8, while its CMC goes through minimum as low as 40 μM at pH 7. The surfactant adsorption at the djurleite-water interface makes the sulfide surface hydrophilic at acidic pH and hydrophobic at neutral and basic pH. In addition, ASL has strong affinity to copper sulfide and demonstrates metal leaching properties. Finally, ASL demonstrates detergency properties. We offer a mechanistic interpretation of these findings. Our results provide a basis for the application of acidic glycolipids in froth flotation and have implications for their application in ion separation using hydrometallurgical routes, as well as for the chemical stability of metal sulfides in environmental systems.
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Affiliation(s)
- Priyanka Dhar
- Department of Geoscience and Petroleum, Norwegian University of Science and Technology (NTNU), NO-7031 Trondheim, Norway
| | - Hakon Havskjold
- Department of Geoscience and Petroleum, Norwegian University of Science and Technology (NTNU), NO-7031 Trondheim, Norway
| | - Maria Thornhill
- Department of Geoscience and Petroleum, Norwegian University of Science and Technology (NTNU), NO-7031 Trondheim, Norway
| | - Sophie Roelants
- Bio Base Europe Pilot Plant, Rodenhuizekaai 1, 9042 Ghent, Belgium; Centre for Industrial Biotechnology and Biocatalysis (InBio.be), Department of Biotechnology (BW25), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Wim Soetaert
- Bio Base Europe Pilot Plant, Rodenhuizekaai 1, 9042 Ghent, Belgium; Centre for Industrial Biotechnology and Biocatalysis (InBio.be), Department of Biotechnology (BW25), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Hanumantha Rao Kota
- Department of Geoscience and Petroleum, Norwegian University of Science and Technology (NTNU), NO-7031 Trondheim, Norway.
| | - Irina Chernyshova
- Department of Geoscience and Petroleum, Norwegian University of Science and Technology (NTNU), NO-7031 Trondheim, Norway.
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9
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Singh PK, Bohr SSR, Hatzakis NS. Direct Observation of Sophorolipid Micelle Docking in Model Membranes and Cells by Single Particle Studies Reveals Optimal Fusion Conditions. Biomolecules 2020; 10:E1291. [PMID: 32906821 PMCID: PMC7564020 DOI: 10.3390/biom10091291] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/03/2020] [Accepted: 09/05/2020] [Indexed: 11/16/2022] Open
Abstract
Sophorolipids (SLs) are naturally produced glycolipids that acts as drug delivery for a spectrum of biomedical applications, including as an antibacterial antifungal and anticancer agent, where they induce apoptosis selectively in cancerous cells. Despite their utility, the mechanisms underlying their membrane interactions, and consequently cell entry, remains unknown. Here, we combined a single liposome assay to observe directly and quantify the kinetics of interaction of SL micelles with model membrane systems, and single particle studies on live cells to record their interaction with cell membranes and their cytotoxicity. Our single particle readouts revealed several repetitive docking events on individual liposomes and quantified how pH and membrane charges, which are known to vary in cancer cells, affect the docking of SL micelles on model membranes. Docking of sophorolipids micelles was found to be optimal at pH 6.5 and for membranes with -5% negatively charge lipids. Single particle studies on mammalian cells reveled a two-fold increased interaction on Hela cells as compared to HEK-293 cells. This is in line with our cell viability readouts recording an approximate two-fold increased cytotoxicity by SLs interactions for Hela cells as compared to HEK-293 cells. The combined in vitro and cell assays thus support the increased cytotoxicity of SLs on cancer cells to originate from optimal charge and pH interactions between membranes and SL assemblies. We anticipate studies combining quantitative single particle studies on model membranes and live cell may reveal hitherto unknown molecular insights on the interactions of sophorolipid and additional nanocarriers mechanism.
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Affiliation(s)
- Pradeep Kumar Singh
- Department of Chemistry & Nanoscience Center, University of Copenhagen, Thorvaldsensvej 40, C 1871 Frederiksberg, Denmark
- Department of Chemistry, University of Akron, Akron, OH 44325, USA
| | - Søren S-R Bohr
- Department of Chemistry & Nanoscience Center, University of Copenhagen, Thorvaldsensvej 40, C 1871 Frederiksberg, Denmark
- Novo Nordisk Center for Protein Research (CPR), University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | - Nikos S Hatzakis
- Department of Chemistry & Nanoscience Center, University of Copenhagen, Thorvaldsensvej 40, C 1871 Frederiksberg, Denmark
- Novo Nordisk Center for Protein Research (CPR), University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
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10
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Li H, Yuan Y, Zhu J, Wang T, Wang D, Xu Y. Zein/soluble soybean polysaccharide composite nanoparticles for encapsulation and oral delivery of lutein. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105715] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Vallabani NVS, Singh S, Karakoti AS. Magnetic Nanoparticles: Current Trends and Future Aspects in Diagnostics and Nanomedicine. Curr Drug Metab 2019; 20:457-472. [DOI: 10.2174/1389200220666181122124458] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/23/2018] [Accepted: 10/10/2018] [Indexed: 12/13/2022]
Abstract
Background:
Biomedical applications of Magnetic Nanoparticles (MNPs) are creating a major impact on
disease diagnosis and nanomedicine or a combined platform called theranostics. A significant progress has been
made to engineer novel and hybrid MNPs for their multifunctional modalities such as imaging, biosensors, chemotherapeutic
or photothermal and antimicrobial agents. MNPs are successfully applied in biomedical applications
due to their unique and tunable properties such as superparamagnetism, stability, and biocompatibility. Approval of
ferumoxytol (feraheme) for MRI and the fact that several Superparamagnetic Iron Oxide Nanoparticles (SPIONs) are
currently undergoing clinical trials have paved a path for future MNPs formulations. Intensive research is being
carried out in designing and developing novel nanohybrids for multiple applications in nanomedicine.
Objective:
The objective of the present review is to summarize recent developments of MNPs in imaging modalities
like MRI, CT, PET and PA, biosensors and nanomedicine including their role in targeting and drug delivery. Relevant
theory and examples of the use of MNPs in these applications have been cited and discussed to create a thorough
understanding of the developments in this field.
Conclusion:
MNPs have found widespread use as contrast agents in imaging modalities, as tools for bio-sensing, and
as therapeutic and theranostics agents. Multiple formulations of MNPs are in clinical testing and may be accepted in
clinical settings in near future.
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Affiliation(s)
- Naga Veera Srikanth Vallabani
- Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Central Campus, Navrangpura, Ahmedabad 380009, Gujarat, India
| | - Sanjay Singh
- Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Central Campus, Navrangpura, Ahmedabad 380009, Gujarat, India
| | - Ajay Singh Karakoti
- Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Central Campus, Navrangpura, Ahmedabad 380009, Gujarat, India
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12
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Lassenberger A, Scheberl A, Batchu KC, Cristiglio V, Grillo I, Hermida-Merino D, Reimhult E, Baccile N. Biocompatible Glyconanoparticles by Grafting Sophorolipid Monolayers on Monodispersed Iron Oxide Nanoparticles. ACS APPLIED BIO MATERIALS 2019; 2:3095-3107. [DOI: 10.1021/acsabm.9b00427] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andrea Lassenberger
- Department of Nanobiotechnology, University of Natural Resources and Life Sciences Vienna, Institute for Biologically Inspired Materials, Muthgasse 11/II, 1190 Vienna, Austria
- Institut Laue-Langevin, 71 Avenue des Martyrs, Grenoble 38042 CEDEX 9, France
| | - Andrea Scheberl
- Department of Nanobiotechnology, University of Natural Resources and Life Sciences Vienna, Institute for Biologically Inspired Materials, Muthgasse 11/II, 1190 Vienna, Austria
| | | | - Viviana Cristiglio
- Institut Laue-Langevin, 71 Avenue des Martyrs, Grenoble 38042 CEDEX 9, France
| | - Isabelle Grillo
- Institut Laue-Langevin, 71 Avenue des Martyrs, Grenoble 38042 CEDEX 9, France
| | - Daniel Hermida-Merino
- ESRF, The European Synchrotron, 71 Avenue des Martyrs, Grenoble 38042 CEDEX 9, France
| | - Erik Reimhult
- Department of Nanobiotechnology, University of Natural Resources and Life Sciences Vienna, Institute for Biologically Inspired Materials, Muthgasse 11/II, 1190 Vienna, Austria
| | - Niki Baccile
- Sorbonne Université, Centre National de la Recherche Scientifique, Laboratoire de Chimie de la Matière Condensée de Paris, LCMCP, Paris F-75005, France
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13
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Naughton PJ, Marchant R, Naughton V, Banat IM. Microbial biosurfactants: current trends and applications in agricultural and biomedical industries. J Appl Microbiol 2019; 127:12-28. [PMID: 30828919 DOI: 10.1111/jam.14243] [Citation(s) in RCA: 137] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 02/18/2019] [Accepted: 02/24/2019] [Indexed: 12/12/2022]
Abstract
Synthetic surfactants are becoming increasingly unpopular in many applications due to previously disregarded effects on biological systems and this has led to a new focus on replacing such products with biosurfactants that are biodegradable and produced from renewal resources. Microbially derived biosurfactants have been investigated in numerous studies in areas including: increasing feed digestibility in an agricultural context, improving seed protection and fertility, plant pathogen control, antimicrobial activity, antibiofilm activity, wound healing and dermatological care, improved oral cavity care, drug delivery systems and anticancer treatments. The development of the potential of biosurfactants has been hindered somewhat by the myriad of approaches taken in their investigations, the focus on pathogens as source species and the costs associated with large-scale production. Here, we focus on various microbial sources of biosurfactants and the current trends in terms of agricultural and biomedical applications.
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Affiliation(s)
- P J Naughton
- The Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Coleraine, County Londonderry, UK
| | - R Marchant
- The Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Coleraine, County Londonderry, UK
| | - V Naughton
- The Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Coleraine, County Londonderry, UK
| | - I M Banat
- The Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Coleraine, County Londonderry, UK
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14
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Sophorolipid induced hydrothermal synthesis of Cu nanowires and its modulating effect on Cu nanostructures. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.nanoso.2019.100285] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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15
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Bacillus lipopeptides: powerful capping and dispersing agents of silver nanoparticles. APPLIED NANOSCIENCE 2018. [DOI: 10.1007/s13204-018-0852-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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16
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Sharifi E, Shams E, Salimi A, Noorbakhsh A, Amini MK. Nickel-cysteine nanoparticles: Synthesis, characterization and application for direct electron transfer studies. Colloids Surf B Biointerfaces 2018; 165:135-143. [PMID: 29475035 DOI: 10.1016/j.colsurfb.2018.01.052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 01/21/2018] [Accepted: 01/26/2018] [Indexed: 10/18/2022]
Abstract
Nickel-cysteine nanostructures (Ni-CysNSs) are prepared by a simple wet chemistry procedure under mild conditions, in which l-cysteine acts both as precursor and structure directing agent. This method involves the reaction of nickel chloride with l-cysteine, followed by simultaneous adjusting the pH in the range of 6-8.5 by addition of an aqueous NaOH solution. The structure and morphology of the prepared products are characterized using various techniques, including X-ray powder diffraction (XRD), Fourier transform-infrared (FT-IR) spectroscopy, CHNS elemental analysis, Field emission scanning electron microscopy (FESEM) and Transmission electron microscopy (TEM). The effects of a variety of synthetic conditions on the structure and morphology of the Ni-CysNSs are studied, including the molar ratio of precursors, dispersing solvent, pH value of the reaction solution, reaction time and reaction temperature. FT-IR measurements reveal that synthesized Ni-CysNSs contain many free carboxylic groups on the surface, which could be used as binding sites to anchor biological molecules in order to develop various bioelectronic devices. In this work, the applicability of synthesized nanostructure in biosensing is studied by using Ni-CysNSs as a platform for covalently immobilization of GOx, as a model enzyme, on the surface. Cyclic voltammetric measurements reveal that the direct electron transfer from the active center of GOx to the glassy carbon electrode facilitated upon its immobilization on the Ni-CysNSs film. More importantly, GOx preserves its native structure and catalytic activity for the oxidation of glucose after immobilization on the Ni-CysNSs surface. The electrocatalytic characteristics of the GC/NiCysNS/GOx electrode toward the oxidation of glucose are investigated by cyclic voltammetry, which displayed acceptable electrical and sensing performance. Simple preparation of Ni-CysNPs and their biocompatibility make them attractive platforms for integration of various biomolecules such as proteine/enzymes with surface.
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Affiliation(s)
- Ensiyeh Sharifi
- Chemistry Department, University of Isfahan, Hezar Jarib, Isfahan, 81746-73441, Iran
| | - Esmaeil Shams
- Chemistry Department, University of Isfahan, Hezar Jarib, Isfahan, 81746-73441, Iran.
| | - Abdollah Salimi
- Department of Chemistry, University of Kurdistan, 66177-15175, Sanandaj, Iran; Research Center for Nanotechnology, University of Kurdistan, 66177-15175, Sanandaj, Iran
| | - Abdollah Noorbakhsh
- Department of Nanotechnology Engineering, Faculty of Advanced Science and Technology, University of Isfahan, Hezar Jarib, Isfahan, 81746-73441, Iran
| | - Mohammad K Amini
- Chemistry Department, University of Isfahan, Hezar Jarib, Isfahan, 81746-73441, Iran
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17
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Dhasaiyan P, Prevost S, Baccile N, Prasad BLV. pH- and Time-Resolved in Situ SAXS Study of Self-Assembled Twisted Ribbons Formed by Elaidic Acid Sophorolipids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:2121-2131. [PMID: 29257893 DOI: 10.1021/acs.langmuir.7b03164] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Conditions that favor the helical structure formation in structurally similar sophorolipids (SLs), that is, elaidic acid SLs (having a trans double bond between the C9 and C10 positions of the alkyl chain) and stearic acid SLs (no double bond), are presented here. The helical self-assembled structures formed by elaidic acid SLs were independent of pH and also were mediated by a micellar intermediate. On the other hand, the stearic acid SLs formed helical structures under low pH condition only. Astonishingly, the formation routes were found to be different, albeit the molecular geometry of both SLs is similar. Even if a conclusive mechanistic understanding must await further work, our studies strongly point out that the noncovalent weak interactions in elaidic acid SLs are able to overcome the electrostatic repulsions of the sophorolipid carboxylate groups at basic pH and facilitating the formation of helical structures. On the other hand, the hydrophobic interactions in stearic acid SLs endow the helical structures with extra stability, making them less vulnerable to dissolution upon heating.
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Affiliation(s)
- Prabhu Dhasaiyan
- Physical and Materials Chemistry Division, CSIR - National Chemical Laboratory , Pune - 411008, India
| | - Sylvain Prevost
- ESRF - The European Synchrotron , High Brilliance Beamline ID02, 38043 Grenoble, France
| | - Niki Baccile
- Sorbonne Université, Centre National de la Recherche Scientifique, Laboratoire de Chimie de la Matière Condensée de Paris , LCMCP, F-75005 Paris, France
| | - Bhagavatula L V Prasad
- Physical and Materials Chemistry Division, CSIR - National Chemical Laboratory , Pune - 411008, India
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Haque F, Sajid M, Cameotra SS, Battacharyya MS. Anti-biofilm activity of a sophorolipid-amphotericin B niosomal formulation against Candida albicans. BIOFOULING 2017; 33:768-779. [PMID: 28946803 DOI: 10.1080/08927014.2017.1363191] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 07/29/2017] [Indexed: 06/07/2023]
Abstract
Sophorolipids (SLs) have gained interest in the pharmaceutical industries due to their anti-microbial, anti-adhesive and anti-biofilm properties. In the present study, the production of SL was increased by using low-cost media components. The potential of a SL-based niosomal formulation of amphotericin B (AmB) was determined against biofilm of the opportunistic fungal pathogen Candida albicans. In-house prepared SL-AmB niosomes were characterized by different microscopic techniques. The mean entrapment efficiency of AmB within SL-AmB niosome was 63.20% ± 3.86. The cytotoxicity of SL-AmB on mature C. albicans biofilm was compared with an expensive, marketed drug, viz. phosome (a liposomal formulation of AmB). Fewer hyphae were observed in C. albicans biofilm treated with SL-AmB niosome whereas more budding cells were found in phosome treated biofilm. The present study has established the affordable production of SL and the suitability of this approach for delivery of poorly soluble drugs such as AmB against candidiasis infections.
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Affiliation(s)
- Farazul Haque
- a Biochemical Engineering Research & Process Development Centre (BERPDC) , CSIR-Institute of Microbial Technology (IMTECH) , Chandigarh , India
| | - Mohammad Sajid
- b Environmental Biotechnology and Microbial Biochemistry Lab, Institute of Microbial Technology , Council of Scientific and Industrial Research (CSIR) , Chandigarh , India
| | - Swaranjit Singh Cameotra
- b Environmental Biotechnology and Microbial Biochemistry Lab, Institute of Microbial Technology , Council of Scientific and Industrial Research (CSIR) , Chandigarh , India
| | - Mani Shankar Battacharyya
- a Biochemical Engineering Research & Process Development Centre (BERPDC) , CSIR-Institute of Microbial Technology (IMTECH) , Chandigarh , India
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Dhasaiyan P, Prasad BLV. Self-Assembly of Bolaamphiphilic Molecules. CHEM REC 2016; 17:597-610. [DOI: 10.1002/tcr.201600085] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Indexed: 12/19/2022]
Affiliation(s)
- Prabhu Dhasaiyan
- Physical and Material Chemistry, CSIR - National Chemical Laboratory; Dr. Homi Bhabha Road, Pashan, Pune Maharashtra 411008 India
| | - Bhagavatula L. V. Prasad
- Physical and Material Chemistry, CSIR - National Chemical Laboratory; Dr. Homi Bhabha Road, Pashan, Pune Maharashtra 411008 India
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Kim EB, Seo JM, Kim GW, Lee SY, Park TJ. In vivo synthesis of europium selenide nanoparticles and related cytotoxicity evaluation of human cells. Enzyme Microb Technol 2016; 95:201-208. [PMID: 27866616 DOI: 10.1016/j.enzmictec.2016.08.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 07/21/2016] [Accepted: 08/22/2016] [Indexed: 11/17/2022]
Abstract
Nanotechnology strives to combine new materials for development of noble nanoparticles. As the nanoparticles exhibit unique optical, electronic, and magnetic properties depending on their composition, developing safe, cost-effective and environmentally friendly technologies for the synthesis have become an important issue. In this study, in vivo synthesis of europium selenide (EuSe) nanoparticles was performed using recombinant Escherichia coli cells expressing heavy-metal binding proteins, phytochelatin synthase and metallothionein. The formation of EuSe nanoparticles was confirmed by using UV-vis spectroscopy, spectrofluorometry, X-ray diffraction, energy dispersive X-ray and transmission electron microscopy. The synthesized EuSe nanoparticles exhibited high fluorescence intensities as well as strong magnetic properties. Furthermore, anti-cancer effect of EuSe nanoparticles against cancer cell lines was investigated. This strategy for the biogenic synthesis of nanoparticles has a great potential as bioimaging tools and drug carrying agents in biomedical fields due to its simplicity and nontoxicity.
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Affiliation(s)
- Eun Bee Kim
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, South Korea
| | - Ji Min Seo
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, South Korea
| | - Gi Wook Kim
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, South Korea
| | - Sang Yup Lee
- Department of Chemical & Biomolecular Engineering, Department of Bio & Brain Engineering, Department of Biological Sciences, BioProcess Engineering Research Center, Center for Systems & Synthetic Biotechnology, Institute for the BioCentury, and Bioinformatics Research Center, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, South Korea
| | - Tae Jung Park
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, South Korea.
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21
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Płaza GA, Chojniak J, Mendrek B, Trzebicka B, Kvitek L, Panacek A, Prucek R, Zboril R, Paraszkiewicz K, Bernat P. Synthesis of silver nanoparticles by Bacillus subtilis T-1 growing on agro-industrial wastes and producing biosurfactant. IET Nanobiotechnol 2016; 10:62-8. [PMID: 27074855 DOI: 10.1049/iet-nbt.2015.0016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In this study, culture supernatnats of Bacillus subtilis T-1 growing on brewery effluents and molasses was used for silver nanoparticles (Ag-NPs) synthesis. The biosurfactant production of B. subtilis T-1 was confirmed by the detection of genes in the genome and by the identification of the product in the supernatants. The genes for synthesis of surfactin (sfp, srfAA) and iturin (ituC) were noted by PCR reactions. Also, in examined culture supernatants the presence of C13, C14 and C15 surfactin homologues with the sodiated molecules [M + Na](+) at m/z 1030, 1044 and 1058 was confirmed using LC/MS/MS analysis. The formation of NPs in the culture supernatants was confirmed by UV-vis spectroscopy. The dynamic light scattering measurements and transmission electron microscopy images showed the nanometric sizes of the biosynthesised Ag-NPs which ranged from several nm to several tens of nm depending on the used culture supernatant. Biological properties of Ag-NPs were evaluated by binding of Ag-NPs with DNA isolated from the Escherichia coli ATCC 25922 and B. subtilis ATCC 6633. Biogenic Ag-NPs were actively bound to DNA in increased concentration which could be the one important mode of antibacterial action of the Ag-NPs.
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Affiliation(s)
- Grażyna Anna Płaza
- Department of Environmental Microbiology, Institute for Ecology of Industrial Areas, 6 Kossutha, 40-844 Katowice, Poland.
| | - Joanna Chojniak
- Department of Environmental Microbiology, Institute for Ecology of Industrial Areas, 6 Kossutha, 40-844 Katowice, Poland
| | - Barbara Mendrek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, 41-819 Zabrze, Poland
| | - Barbara Trzebicka
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, 41-819 Zabrze, Poland
| | - Libor Kvitek
- Department of Physical Chemistry, Faculty of Science, Regional Centre of Advanced Technologies and Materials, Palacky University in Olomouc 17, Listopadu 12, 771 46 Olomouc, Czech Republic
| | - Ales Panacek
- Department of Physical Chemistry, Faculty of Science, Regional Centre of Advanced Technologies and Materials, Palacky University in Olomouc 17, Listopadu 12, 771 46 Olomouc, Czech Republic
| | - Robert Prucek
- Department of Physical Chemistry, Faculty of Science, Regional Centre of Advanced Technologies and Materials, Palacky University in Olomouc 17, Listopadu 12, 771 46 Olomouc, Czech Republic
| | - Radek Zboril
- Department of Physical Chemistry, Faculty of Science, Regional Centre of Advanced Technologies and Materials, Palacky University in Olomouc 17, Listopadu 12, 771 46 Olomouc, Czech Republic
| | - Katarzyna Paraszkiewicz
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha, 90-237 Lodz, Poland
| | - Przemysław Bernat
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha, 90-237 Lodz, Poland
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Cuvier A, Babonneau F, Berton J, Stevens CV, Fadda GC, Péhau‐Arnaudet G, Le Griel P, Prévost S, Perez J, Baccile N. Nanoscale Platelet Formation by Monounsaturated and Saturated Sophorolipids under Basic pH Conditions. Chemistry 2015; 21:19265-77. [DOI: 10.1002/chem.201502933] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Indexed: 12/15/2022]
Affiliation(s)
- Anne‐Sophie Cuvier
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Collège de France UMR 7574, Chimie de la Matière Condensée de Paris, UMR 7574, 75005 Paris (France)
| | - Florence Babonneau
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Collège de France UMR 7574, Chimie de la Matière Condensée de Paris, UMR 7574, 75005 Paris (France)
| | - Jan Berton
- SynBioC, Department of Sustainable Organic Chemistry and Technology, Ghent University, Ghent (Belgium)
| | - Christian V. Stevens
- SynBioC, Department of Sustainable Organic Chemistry and Technology, Ghent University, Ghent (Belgium)
| | - Giulia C. Fadda
- Laboratoire Léon Brillouin, LLB, CEA Saclay, 91191 Gif‐sur‐Yvette Cedex (France)
| | | | - Patrick Le Griel
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Collège de France UMR 7574, Chimie de la Matière Condensée de Paris, UMR 7574, 75005 Paris (France)
| | - Sylvain Prévost
- ESRF ‐ The European Synchrotron, High Brilliance Beamline ID02, 38043 Grenoble (France)
| | - Javier Perez
- SWING, Synchrotron Soleil, BP 48, 91192 Gif‐sur‐Yvette, (France)
| | - Niki Baccile
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Collège de France UMR 7574, Chimie de la Matière Condensée de Paris, UMR 7574, 75005 Paris (France)
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Solaiman DK, Ashby RD, Crocker NV. High-titer production and strong antimicrobial activity of sophorolipids fromRhodotorula bogoriensis. Biotechnol Prog 2015; 31:867-74. [DOI: 10.1002/btpr.2101] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 04/29/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Daniel K.Y. Solaiman
- Biobased and Other Animal Co-Products Research Unit, Eastern Regional Research Center, Agricultural Research Service, U.S. Dept. of Agriculture; Wyndmoor PA 19038
| | - Richard D. Ashby
- Biobased and Other Animal Co-Products Research Unit, Eastern Regional Research Center, Agricultural Research Service, U.S. Dept. of Agriculture; Wyndmoor PA 19038
| | - Nicole V. Crocker
- Biobased and Other Animal Co-Products Research Unit, Eastern Regional Research Center, Agricultural Research Service, U.S. Dept. of Agriculture; Wyndmoor PA 19038
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25
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Dalavi SB, Panda RN. Magnetic Properties of Nanostructured Co and Ni Synthesized by Modified NaBH 4Reduction Route. PARTICULATE SCIENCE AND TECHNOLOGY 2015. [DOI: 10.1080/02726351.2014.941079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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26
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Płaza GA, Chojniak J, Banat IM. Biosurfactant mediated biosynthesis of selected metallic nanoparticles. Int J Mol Sci 2014; 15:13720-37. [PMID: 25110864 PMCID: PMC4159821 DOI: 10.3390/ijms150813720] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 06/27/2014] [Accepted: 07/07/2014] [Indexed: 12/11/2022] Open
Abstract
Developing a reliable experimental protocol for the synthesis of nanomaterials is one of the challenging topics in current nanotechnology particularly in the context of the recent drive to promote green technologies in their synthesis. The increasing need to develop clean, nontoxic and environmentally safe production processes for nanoparticles to reduce environmental impact, minimize waste and increase energy efficiency has become essential in this field. Consequently, recent studies on the use of microorganisms in the synthesis of selected nanoparticles are gaining increased interest as they represent an exciting area of research with considerable development potential. Microorganisms are known to be capable of synthesizing inorganic molecules that are deposited either intra- or extracellularly. This review presents a brief overview of current research on the use of biosurfactants in the biosynthesis of selected metallic nanoparticles and their potential importance.
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Affiliation(s)
- Grażyna A Płaza
- Department of Environmental Microbiology, Institute for Ecology of Industrial Areas,6 Kossutha Str., 40-844 Katowice, Poland.
| | - Joanna Chojniak
- Department of Environmental Microbiology, Institute for Ecology of Industrial Areas,6 Kossutha Str., 40-844 Katowice, Poland.
| | - Ibrahim M Banat
- School of Biomedical Sciences, University of Ulster, Coleraine BT52 1SA, N. Ireland, UK.
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27
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Solaiman DKY, Liu Y, Moreau RA, Zerkowski JA. Cloning, characterization, and heterologous expression of a novel glucosyltransferase gene from sophorolipid-producing Candida bombicola. Gene 2014; 540:46-53. [PMID: 24566005 DOI: 10.1016/j.gene.2014.02.029] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 12/24/2013] [Accepted: 02/13/2014] [Indexed: 11/26/2022]
Abstract
Candida bombicola is well-studied for the production of a biosurfactant, the sophorolipids. In this paper, the cloning of a glucosyltransferase gene using polymerase-chain-reaction (PCR) technique is described. Degenerative primer-pairs were first designed based on the highly conserved amino-acid sequences of several selected yeast glucosyltransferases. Using these primers, an amplified sequence (amplicon) of 700 base-pair from C. bombicola was obtained and subsequently sequenced. Based on the sequence of this amplicon, additional target-specific PCR primers were designed for use in subsequent rounds of 3'- and 5'-extension using DNA walking technique to eventually obtain a C. bombicola genomic sequence containing an open-reading-frame putatively identified as a glucosyltransferase (gtf-1). The gene was subcloned in Saccharomyces cerevisiae for expression and functional characterization. Quantitative RT-PCR confirmed the expression of gtf-1 in the recombinant S. cerevisiae. In vitro assay with the sonicated cells of the recombinant yeast confirms the presence of glucosylation activity on sterol and hydroxy fatty acid substrates. This study reports for the first time the cloning and characterization of a broad-specificity lipid glucosylation gene from C. bombicola, and the functional activity of its gene product.
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Affiliation(s)
- Daniel K Y Solaiman
- Biobased and Other Animal Co-Products Research Unit, Eastern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, USA.
| | - Yanhong Liu
- Molecular Characterization of Foodborne Pathogens Research Unit, Eastern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, USA
| | - Robert A Moreau
- Sustainable Biofuels and Co-Products Research Unit, Eastern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, USA
| | - Jonathan A Zerkowski
- Biobased and Other Animal Co-Products Research Unit, Eastern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, USA
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28
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Wang X, Tilley RD, Watkins JJ. Simple ligand exchange reactions enabling excellent dispersibility and stability of magnetic nanoparticles in polar organic, aromatic, and protic solvents. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:1514-1521. [PMID: 24460074 DOI: 10.1021/la404757q] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The use of magnetic nanoparticles (MNPs) in real-world applications is often limited by the lack of stable solutions of monodisperse NPs in appropriate solvents. We report a facile one-pot ligand exchange reaction that is fast, efficient, and thorough for the synthesis of hydrophilic MNPs that are readily dispersed in polar organic and protic solvents (polarity index = 3.9-7.2) including alcohols, THF, DMF, and DMSO for years without precipitation. We emphasize the rational selection of small-molecule ligands such as 4-hydroxybenzoic acid (HBA), 3-(4-hydroxyphenyl)propionic acid (HPP), and gallic acid (GAL) that provide strong bonding with the MNP (FePt and FeOx) surfaces, hydrophilic termini to match the polarity of target solvents, and offer the potential for hydrogen-bonding interactions to facilitate incorporation into polymers and other media. Areal ligand densities (Σ) calculated based on the NP core size from transmission electron microscopy (TEM) images, and the inorganic fractions of NPs derived from thermogravimetric analysis (TGA) indicated a significant (2-4 times) increase in the ligand coverage after the exchange reactions. Fourier transform infrared spectrometry (FTIR) and (1)H nuclear magnetic resonance (NMR) studies also confirmed anchoring of carboxyl groups on NP surfaces. In addition, we demonstrate a facile one-step in situ synthesis of FePt NPs with aromatic ligands for better dispersibility in solvents of intermediate polarity (polarity index = 1.0-3.5) such as toluene, chlorobenzene, and dichloromethane. The creation of stable dispersions of NPs in solvents across the polarity spectrum opens up new applications and new processing widows for creating NP composites in a variety of host materials.
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Affiliation(s)
- Xinyu Wang
- Polymer Science and Engineering Department, University of Massachusetts Amherst , 120 Governors Drive, Amherst, Massachusetts 01003, United States
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29
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Roelants SLKW, De Maeseneire SL, Ciesielska K, Van Bogaert INA, Soetaert W. Biosurfactant gene clusters in eukaryotes: regulation and biotechnological potential. Appl Microbiol Biotechnol 2014; 98:3449-61. [PMID: 24531239 DOI: 10.1007/s00253-014-5547-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 01/13/2014] [Accepted: 01/14/2014] [Indexed: 12/26/2022]
Abstract
Biosurfactants (BSs) are a class of secondary metabolites representing a wide variety of structures that can be produced from renewable feedstock by a wide variety of micro-organisms. They have (potential) applications in the medical world, personal care sector, mining processes, food industry, cosmetics, crop protection, pharmaceuticals, bio-remediation, household detergents, paper and pulp industry, textiles, paint industries, etc. Especially glycolipid BSs like sophorolipids (SLs), rhamnolipids (RLs), mannosylerythritol lipids (MELs) and cellobioselipids (CBLs) have been described to provide significant opportunities to (partially) replace chemical surfactants. The major two factors currently limiting the penetration of BSs into the market are firstly the limited structural variety and secondly the rather high production price linked with the productivity. One of the keys to resolve the above mentioned bottlenecks can be found in the genetic engineering of natural producers. This could not only result in more efficient (economical) recombinant producers, but also in a diversification of the spectrum of available BSs as such resolving both limiting factors at once. Unraveling the genetics behind the biosynthesis of these interesting biological compounds is indispensable for the tinkering, fine tuning and rearrangement of these biological pathways with the aim of obtaining higher yields and a more extensive structural variety. Therefore, this review focuses on recent developments in the investigation of the biosynthesis, genetics and regulation of some important members of the family of the eukaryotic glycolipid BSs (MELs, CBLs and SLs). Moreover, recent biotechnological achievements and the industrial potential of engineered strains are discussed.
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Affiliation(s)
- Sophie L K W Roelants
- Centre for Industrial Biotechnology and Biocatalysis (InBio.be), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium,
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Baccile N, Noiville R, Stievano L, Bogaert IV. Sophorolipids-functionalized iron oxide nanoparticles. Phys Chem Chem Phys 2013; 15:1606-20. [DOI: 10.1039/c2cp41977g] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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31
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Taguchi M, Takami S, Adschiri T, Nakane T, Sato K, Naka T. Synthesis of surface-modified monoclinic ZrO2 nanoparticles using supercritical water. CrystEngComm 2012. [DOI: 10.1039/c2ce06409j] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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One-step production of unacetylated sophorolipids by an acetyltransferase negative Candida bombicola. Biotechnol Bioeng 2011; 108:2923-31. [DOI: 10.1002/bit.23248] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2011] [Revised: 06/08/2011] [Accepted: 06/08/2011] [Indexed: 11/07/2022]
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Dhar S, Reddy EM, Prabhune A, Pokharkar V, Shiras A, Prasad BLV. Cytotoxicity of sophorolipid-gellan gum-gold nanoparticle conjugates and their doxorubicin loaded derivatives towards human glioma and human glioma stem cell lines. NANOSCALE 2011; 3:575-580. [PMID: 21069248 DOI: 10.1039/c0nr00598c] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Biocompatible gold nanoparticles were synthesized by using a naturally occurring gum--Gellan Gum--as a capping and reducing agent. These were further conjugated with sophorolipids which again were accessed through a biochemical transformation of a fatty acid. The cellular uptake of sophorolipid-conjugated gellan gum reduced gold nanoparticles and their cytotoxicity on human glioma cell line LN-229 and human glioma stem cell line HNGC-2 were investigated. Quite surprisingly even the simple sophorolipid-conjugated gellan gum reduced/capped gold nanoparticles showed greater efficacy in killing the glioma cell lines and, gratifyingly, the glioma stem cell lines also. The cytotoxic effects became more prominent once the anti cancer drug doxorubicin hydrochloride was also conjugated to these gold nanoparticles.
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Affiliation(s)
- Sheetal Dhar
- Materials Chemistry Division, National Chemical Laboratory, Pune, 411 008, India
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36
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Taguchi M, Takami S, Adschiri T, Nakane T, Sato K, Naka T. Supercritical hydrothermal synthesis of hydrophilic polymer-modified water-dispersible CeO2nanoparticles. CrystEngComm 2011. [DOI: 10.1039/c0ce00467g] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Narayanan J, Ramji R, Sahu H, Gautam P. Synthesis, stabilisation and characterisation of rhamnolipid-capped ZnS nanoparticles in aqueous medium. IET Nanobiotechnol 2010; 4:29-34. [DOI: 10.1049/iet-nbt.2009.0010] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Singh S, D’Britto V, Prabhune AA, Ramana CV, Dhawan A, Prasad BLV. Cytotoxic and genotoxic assessment of glycolipid-reduced and -capped gold and silver nanoparticles. NEW J CHEM 2010. [DOI: 10.1039/b9nj00277d] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Rispoli FJ, Badia D, Shah V. Optimization of the fermentation media for sophorolipid production fromCandida bombicolaATCC 22214 using a simplex centroid design. Biotechnol Prog 2010; 26:938-44. [DOI: 10.1002/btpr.399] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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41
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Ratsep P, Shah V. Identification and quantification of sophorolipid analogs using ultra-fast liquid chromatography-mass spectrometry. J Microbiol Methods 2009; 78:354-6. [PMID: 19559734 DOI: 10.1016/j.mimet.2009.06.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2009] [Revised: 06/16/2009] [Accepted: 06/16/2009] [Indexed: 11/27/2022]
Abstract
An ultra-fast liquid chromatographic method combined with atmospheric pressure chemical ionization mass detection (UHPLC/APCI-MS) has been developed for the separation and quantification of sophorolipid analogs produced by the yeast Candida bombicola. The sophorolipid mixture was produced by growing the yeast in the presence of glucose and oleic acid under higher aeration. It was found that more than 95% of the analogs are lactonic sophorolipids and all the produced sophorolipids produced were either mono- or di-acetylated. Also observed was a sophorolipid analog with a tri-unsaturated fatty acid, which has not been reported previously.
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Affiliation(s)
- Peter Ratsep
- Shimadzu Scientific Instruments Inc., 262 D Old New Brunswick Rd, Piscataway, NJ 08854, United States
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42
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An effective sonication-assisted reduction approach to synthesize highly dispersed Co nanoparticles on SiO2. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.02.041] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Sharma VK, Yngard RA, Lin Y. Silver nanoparticles: green synthesis and their antimicrobial activities. Adv Colloid Interface Sci 2009; 145:83-96. [PMID: 18945421 DOI: 10.1016/j.cis.2008.09.002] [Citation(s) in RCA: 1717] [Impact Index Per Article: 114.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2008] [Revised: 08/23/2008] [Accepted: 09/01/2008] [Indexed: 11/28/2022]
Abstract
This review presents an overview of silver nanoparticles (Ag NPs) preparation by green synthesis approaches that have advantages over conventional methods involving chemical agents associated with environmental toxicity. Green synthetic methods include mixed-valence polyoxometallates, polysaccharide, Tollens, irradiation, and biological. The mixed-valence polyoxometallates method was carried out in water, an environmentally-friendly solvent. Solutions of AgNO(3) containing glucose and starch in water gave starch-protected Ag NPs, which could be integrated into medical applications. Tollens process involves the reduction of Ag(NH(3))(2)(+) by saccharides forming Ag NP films with particle sizes from 50-200 nm, Ag hydrosols with particles in the order of 20-50 nm, and Ag colloid particles of different shapes. The reduction of Ag(NH(3))(2)(+) by HTAB (n-hexadecyltrimethylammonium bromide) gave Ag NPs of different morphologies: cubes, triangles, wires, and aligned wires. Ag NPs synthesis by irradiation of Ag(+) ions does not involve a reducing agent and is an appealing procedure. Eco-friendly bio-organisms in plant extracts contain proteins, which act as both reducing and capping agents forming stable and shape-controlled Ag NPs. The synthetic procedures of polymer-Ag and TiO(2)-Ag NPs are also given. Both Ag NPs and Ag NPs modified by surfactants or polymers showed high antimicrobial activity against gram-positive and gram-negative bacteria. The mechanism of the Ag NP bactericidal activity is discussed in terms of Ag NP interaction with the cell membranes of bacteria. Silver-containing filters are shown to have antibacterial properties in water and air purification. Finally, human and environmental implications of Ag NPs to the ecology of aquatic environment are briefly discussed.
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Affiliation(s)
- Virender K Sharma
- Chemistry Department, Florida Institute of Technology, 150 West University Boulevard, Melbourne, Florida 32901, USA.
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Kasture MB, Patel P, Prabhune AA, Ramana CV, Kulkarni AA, Prasad BLV. Synthesis of silver nanoparticles by sophorolipids: Effect of temperature and sophorolipid structure on the size of particles. J CHEM SCI 2009. [DOI: 10.1007/s12039-008-0080-6] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Singh S, Patel P, Jaiswal S, Prabhune AA, Ramana CV, Prasad BLV. A direct method for the preparation of glycolipid–metal nanoparticle conjugates: sophorolipids as reducing and capping agents for the synthesis of water re-dispersible silver nanoparticles and their antibacterial activity. NEW J CHEM 2009. [DOI: 10.1039/b811829a] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ramana C, Durugkar KA, Puranik VG, Narute SB, Prasad B. C-Glycosides of dodecanoic acid: new capping/reducing agents for glyconanoparticle synthesis. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.08.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Lu LT, Tung LD, Robinson I, Ung D, Tan B, Long J, Cooper AI, Fernig DG, Thanh NTK. Size and shape control for water-soluble magnetic cobalt nanoparticles using polymer ligands. ACTA ACUST UNITED AC 2008. [DOI: 10.1039/b801800f] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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