1
|
Nunes M, García-Orduña P, Atrián-Blasco E, Costa Vieira J, Costa AP, Cabral Amaral ME, Claro A, Ferreira T, Mitchell SG. Polyoxometalate-Ionic Liquids for Mitigating the Effects of Iron Gall Ink Corrosion on Cellulosic Supports. ACS OMEGA 2024; 9:36609-36621. [PMID: 39220488 PMCID: PMC11360026 DOI: 10.1021/acsomega.4c04925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 07/02/2024] [Accepted: 07/08/2024] [Indexed: 09/04/2024]
Abstract
Iron gall ink (IGI), renowned for its indelibility, was the most important writing ink in the Western world from the 15th to the late 19th century. However, it is now known that IGIs induce acid-catalyzed hydrolysis and iron-catalyzed oxidation of the cellulose in historical paper documents. These mechanisms of deterioration cause significant damage to the writing support materials, including color alteration and burn-through appearance, and in the worst scenarios, physical disintegration of the supports. Minimally invasive, long-term effective conservation treatments that tackle the underlying mechanisms of IGI degradation and their corrosion effects are yet to be developed. This study introduces the deployment of hydrophobic and anticorrosive polyoxometalate-ionic liquids (POM-ILs) as colorless coatings to counteract IGI-corrosion of cellulosic supports. Model IGI-containing papers (mockups) were prepared, coated with POM-ILs, and artificially aged to assess the compatibility of POM-ILs with IGI-containing documents. Comprehensive monitoring using colorimetric and scanning electron microscopy-energy-dispersive X-ray spectroscopy (SEM/EDS) analyses showed minimal interference with the aesthetic properties and morphology of the IGI mockups. In addition, polyoxometalates (POMs) with vacant metal atom sites in the cluster shell can be used to coordinate free transition metal ions. The ability of a monolacunary Keggin-type polyoxotungstate to coordinate free Fe(II) from IGI solution was demonstrated using UV-vis analysis. This led to the formation of a dimeric species, [(SiW11O39Fe)2O]K12·28H2O, which was characterized by single-crystal X-ray diffraction. Altogether, this study points to POM-ILs as promising protective coatings for effectively preserving historical IGI-written heritage.
Collapse
Affiliation(s)
- Margarida Nunes
- HERCULES
Laboratory/IN2PAST, Associate Laboratory for Research and Innovation
in Heritage, Arts, Sustainability and Territory, University of Évora, Evora 7004-516, Portugal
| | - Pilar García-Orduña
- Instituto
de Síntesis Química y Catálisis Homogénea
(ISQCH), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - Elena Atrián-Blasco
- Instituto
de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - Joana Costa Vieira
- FibEnTech-UBI,
Fiber Materials and Environmental Technologies, University of Beira Interior, Covilhã 6201-001, Portugal
| | - Ana Paula Costa
- FibEnTech-UBI,
Fiber Materials and Environmental Technologies, University of Beira Interior, Covilhã 6201-001, Portugal
| | - Maria Emília Cabral Amaral
- FibEnTech-UBI,
Fiber Materials and Environmental Technologies, University of Beira Interior, Covilhã 6201-001, Portugal
| | - Ana Claro
- CHAM-Centre
for the Humanities, College of Social and Human Sciences, NOVA University of Lisbon, Lisboa 1099-085, Portugal
| | - Teresa Ferreira
- HERCULES
Laboratory/IN2PAST, Associate Laboratory for Research and Innovation
in Heritage, Arts, Sustainability and Territory, University of Évora, Evora 7004-516, Portugal
- Chemistry
and Biochemistry Department at the Sciences and Technology School, University of Évora, Evora 7004-516, Portugal
| | - Scott G. Mitchell
- Instituto
de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
| |
Collapse
|
2
|
Homa J, Konończuk K, Frankowski R, Zgoła-Grześkowiak A, Ławniczak Ł, Chrzanowski Ł, Stachowiak W, Niemczak M. Cations impact the biodegradation of iodosulfuron-methyl herbicidal ionic liquids by fungi. ENVIRONMENTAL TECHNOLOGY 2024:1-14. [PMID: 38849972 DOI: 10.1080/09593330.2024.2357696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 05/12/2024] [Indexed: 06/09/2024]
Abstract
In the framework of this study, six fungal isolates which demonstrated a high capability for biodegrading iodosulphuron-methyl sodium as well as herbicidal ionic liquids based on this herbicide were isolated from different soil samples. The isolates were identified based on the ITS region, whereas biodegradation residues were determined based on LC-MS/MS. Depending on the isolate, the half-lives values of the biodegraded herbicide or herbicidal ionic liquid ranged significantly from just 1.25 days to more than 40 days. The research findings unveiled that the structure of cations is a central limiting factor affecting fungal growth and herbicide transformation in case of ionic liquids. The length of the alkyl chain has been identified as the primary driver of herbicide toxicity, emphasizing the importance of structural factors in herbicide design. In cases when dodecyl(2-hydroxyethyl)dimethyl cation was used, its biodegradation ranged from 0 to approx. 20% and the biodegradability of the iodosulfuron-methyl was notably limited for the majority of the studied isolates. This knowledge provides guidance for development and selection of herbicides with reduced environmental impact. This study highlights the ecological importance of soil fungi, their potential role in herbicide biodegradation, the influence of cations on fungal growth and herbicide transformation, and the structural factors governing herbicide toxicity. Further research in these areas may lead to more efficient and environmentally friendly approaches to herbicide management.
Collapse
Affiliation(s)
- Jan Homa
- Institute of Chemical Technology and Engineering, Poznań University of Technology, Poznań, Poland
| | - Kosma Konończuk
- Institute of Chemical Technology and Engineering, Poznań University of Technology, Poznań, Poland
| | - Robert Frankowski
- Institute of Chemistry and Technical Electrochemistry, Poznań University of Technology, Poznań, Poland
| | | | - Łukasz Ławniczak
- Institute of Chemical Technology and Engineering, Poznań University of Technology, Poznań, Poland
| | - Łukasz Chrzanowski
- Institute of Chemical Technology and Engineering, Poznań University of Technology, Poznań, Poland
| | - Witold Stachowiak
- Institute of Chemical Technology and Engineering, Poznań University of Technology, Poznań, Poland
| | - Michał Niemczak
- Institute of Chemical Technology and Engineering, Poznań University of Technology, Poznań, Poland
| |
Collapse
|
3
|
Eyssautier-Chuine S, Franco-Castillo I, Misra A, Hubert J, Vaillant-Gaveau N, Streb C, Mitchell SG. Evaluating the durability and performance of polyoxometalate-ionic liquid coatings on calcareous stones: Preventing biocolonisation in outdoor environments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 884:163739. [PMID: 37142021 DOI: 10.1016/j.scitotenv.2023.163739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 04/16/2023] [Accepted: 04/21/2023] [Indexed: 05/06/2023]
Abstract
Rock-based materials exposed to outdoor environments are naturally colonised by an array of microorganisms, which can cause dissolution and fracturing of the natural stone. Biocolonisation of monuments and architectures of important cultural heritage therefore represents an expensive and recurring problem for local authorities and private owners alike. In this area, preventive strategies to mitigate biocolonisation are generally preferred to curative approaches, such as mechanical cleaning by brush or high-pressure cleaning, to remove pre-existing patina. The aim of this work was to study the interaction between biocidal polyoxometalate-ionic liquid (POM-IL) coatings and calcareous stones and evaluate the capacity of these coatings to prevent biocolonisation through a series of accelerated ageing studies in climate chambers, carried out in parallel with a two-year period of outdoor exposure in north-eastern France. Our experiments show that POM-IL coatings did not affect water vapour transfer nor significantly alter the total porosity of the calcareous stones. Simulated weathering studies replicating harsh (hot and wet) climatic weather conditions demonstrated that the colour variation of POM-IL-coated stones did not vary significantly with respect to the natural uncoated stones. Accelerated biocolonisation studies performed on the weathered POM-IL-coated stones proved that the coatings were still capable of preventing colonisation by an algal biofilm. However, a combination of colour measurements, chlorophyll fluorescence data, and scanning electron microscopy imaging of stones aged outdoors in northern France for two years showed that coated and uncoated stone samples showed signs of colonisation by fungal mycelium and phototrophs. Altogether, our results demonstrate that POM-ILs are suitable as preventative biocidal coatings for calcareous stones, but the correct concentrations must be chosen to achieve a balance between porosity of the stone, the resulting colour variation and the desired duration of the biocidal effect over longer periods of time, particularly in outdoor environments.
Collapse
Affiliation(s)
- Stéphanie Eyssautier-Chuine
- Groupe d'Étude sur les Géomatériaux et les Environnements Naturels Anthropiques et Archéologiques 3795 (GEGENAA) - SFR Condorcet FR CNRS 3417 - 2, Esplanade Roland Garros, Université de Reims Champagne-Ardenne, 51100 cedex Reims, France.
| | - Isabel Franco-Castillo
- Instituto de Nanociencia y Materiales de Aragón (INMA-CSIC/UNIZAR), Consejo Superior de Investigaciones Científicas-Universidad de Zaragoza, c/ Pedro Cerbuna 12, 50009 Zaragoza, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Archismita Misra
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Julien Hubert
- Groupe d'Étude sur les Géomatériaux et les Environnements Naturels Anthropiques et Archéologiques 3795 (GEGENAA) - SFR Condorcet FR CNRS 3417 - 2, Esplanade Roland Garros, Université de Reims Champagne-Ardenne, 51100 cedex Reims, France
| | - Nathalie Vaillant-Gaveau
- Unité de Recherche EA 4707 Résistance Induite et Bioprotection des Plantes (RIBP), SFR Condorcet FR CNRS 3417, UFR Sciences Exactes et Naturelles, Université de Reims Champagne-Ardenne, Reims, France
| | - Carsten Streb
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany; Department of Chemistry, Johannes Gutenberg University Mainy, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Scott G Mitchell
- Instituto de Nanociencia y Materiales de Aragón (INMA-CSIC/UNIZAR), Consejo Superior de Investigaciones Científicas-Universidad de Zaragoza, c/ Pedro Cerbuna 12, 50009 Zaragoza, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain.
| |
Collapse
|
4
|
Enderle AG, Franco-Castillo I, Atrián-Blasco E, Martín-Rapún R, Lizarraga L, Culzoni MJ, Bollini M, de la Fuente JM, Silva F, Streb C, Mitchell SG. Hybrid Antimicrobial Films Containing a Polyoxometalate-Ionic Liquid. ACS APPLIED POLYMER MATERIALS 2022; 4:4144-4153. [PMID: 35720671 PMCID: PMC9194901 DOI: 10.1021/acsapm.2c00110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 04/02/2022] [Indexed: 05/30/2023]
Abstract
The increasing resistance of pathogenic microorganisms against common treatments requires innovative concepts to prevent infection and avoid long-term microbe viability on commonly used surfaces. Here, we report the preparation of a hybrid antimicrobial material based on the combination of microbiocidal polyoxometalate-ionic liquids (POM-ILs) and a biocompatible polymeric support, which enables the development of surface coatings that prevent microbial adhesion. The composite material is based on an antibacterial and antifungal room-temperature POM-IL composed of guanidinium cations (N,N,N',N'-tetramethyl-N″, N″-dioctylguanidinum) combined with lacunary Keggin-type polyoxotungstate anions, [α-SiW11O39]8-. Integration of the antimicrobial POM-IL into the biocompatible, flexible, and stable polymer poly(methyl methacrylate) (PMMA) results in processable films, which are suitable as surface coatings or packaging materials to limit the proliferation and spread of pathogenic microorganisms (e.g., on public transport and hospital surfaces, or in ready-to-eat-food packaging).
Collapse
Affiliation(s)
- Ana G. Enderle
- Institute
of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
- Centro
de Investigaciones en Bionanociencias (CIBION), CONICET, Godoy Cruz,
2390, C1425FQD Ciudad
de Buenos Aires, Argentina
- Laboratorio
de Desarrollo Analítico y Quimiometría (LADAQ), Universidad
Nacional del Litoral—CONICET, Ciudad
Universitaria, Paraje
El Pozo, CC242, S3000 Santa Fe, Argentina
| | - Isabel Franco-Castillo
- Instituto
de Nanociencia y Materiales de Aragón (INMA-CSIC), Consejo Superior de Investigaciones Científicas-Universidad
de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Elena Atrián-Blasco
- Instituto
de Nanociencia y Materiales de Aragón (INMA-CSIC), Consejo Superior de Investigaciones Científicas-Universidad
de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Rafael Martín-Rapún
- Instituto
de Nanociencia y Materiales de Aragón (INMA-CSIC), Consejo Superior de Investigaciones Científicas-Universidad
de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Leonardo Lizarraga
- Centro
de Investigaciones en Bionanociencias (CIBION), CONICET, Godoy Cruz,
2390, C1425FQD Ciudad
de Buenos Aires, Argentina
| | - María J. Culzoni
- Laboratorio
de Desarrollo Analítico y Quimiometría (LADAQ), Universidad
Nacional del Litoral—CONICET, Ciudad
Universitaria, Paraje
El Pozo, CC242, S3000 Santa Fe, Argentina
| | - Mariela Bollini
- Centro
de Investigaciones en Bionanociencias (CIBION), CONICET, Godoy Cruz,
2390, C1425FQD Ciudad
de Buenos Aires, Argentina
| | - Jesús M. de la Fuente
- Instituto
de Nanociencia y Materiales de Aragón (INMA-CSIC), Consejo Superior de Investigaciones Científicas-Universidad
de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Filomena Silva
- ARAID—Agencia
Aragonesa para la Investigación y el Desarrollo, Av. Ranillas, 1D, 2B, 50018 Zaragoza, Spain
- Facultad
de Veterinaria, Universidad de Zaragoza, Calle Miguel Servet 117, 50013 Zaragoza, Spain
| | - Carsten Streb
- Institute
of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Scott G. Mitchell
- Instituto
de Nanociencia y Materiales de Aragón (INMA-CSIC), Consejo Superior de Investigaciones Científicas-Universidad
de Zaragoza, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
| |
Collapse
|
5
|
Li Q, Hu Y, Zhang B. Phosphonium-based ionic liquids as antifungal agents for conservation of heritage sandstone. RSC Adv 2022; 12:1922-1931. [PMID: 35425254 PMCID: PMC8979122 DOI: 10.1039/d1ra09169g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 01/03/2022] [Indexed: 12/13/2022] Open
Abstract
With a view to preventing fungal deterioration of historical stone artworks, we report the use of phosphonium-based ionic liquids (ILs) as potent antifungal agents against dematiaceous fungi commonly found on heritage stones. Three ILs: tributyldodecylphosphonium polyoxometalate [P44412][POM], tributyltetradecylphosphonium polyoxometalate [P44414][POM], and trihexyltetradecylphosphonium polyoxometalate [P66614][POM] were prepared and their thermal stabilities and in vitro antifungal activities were evaluated. From the ramped temperature thermogravimetric analysis and antifungal experiments it can be clearly observed that the alkyl chain length of the tetraalkylphosponium cation has a significant influence on the thermal and antifungal properties. The thermal stability and antifungal activity decreased as the number of carbon atoms of the alkyl substituents increased and, thus, followed the order [P44412][POM] > [P44414][POM] > [P66614][POM]. In addition, inoculation of four fungal species on IL-coated sandstone surfaces showed significant inhibition of fungal growth, endowing the materials with potential applications in heritage sandstone conservation.
Collapse
Affiliation(s)
- Qiang Li
- School of Art and Archaeology, Zhejiang University Hangzhou Zhejiang 310058 China
| | - Yulan Hu
- School of Art and Archaeology, Zhejiang University Hangzhou Zhejiang 310058 China
| | - Bingjian Zhang
- School of Art and Archaeology, Zhejiang University Hangzhou Zhejiang 310058 China
- Department of Chemistry, Zhejiang University Hangzhou Zhejiang 310027 China
| |
Collapse
|
6
|
Romani M, Warscheid T, Nicole L, Marcon L, Di Martino P, Suzuki MT, Lebaron P, Lami R. Current and future chemical treatments to fight biodeterioration of outdoor building materials and associated biofilms: Moving away from ecotoxic and towards efficient, sustainable solutions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 802:149846. [PMID: 34464791 DOI: 10.1016/j.scitotenv.2021.149846] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 08/18/2021] [Accepted: 08/19/2021] [Indexed: 06/13/2023]
Abstract
All types of building materials are rapidly colonized by microorganisms, initially through an invisible and then later a visible biofilm that leads to their biodeterioration. Over centuries, this natural phenomenon has been managed using mechanical procedures, oils, or even wax. In modern history, many treatments such as high-pressure cleaners, biocides (mainly isothiazolinones and quaternary ammonium compounds) are commercially available, as well as preventive ones, such as the use of water-repellent coatings in the fabrication process. While all these cleaning techniques offer excellent cost-benefit ratios, their limitations are numerous. Indeed, building materials are often quickly recolonized after application, and microorganisms are increasingly reported as resistant to chemical treatments. Furthermore, many antifouling compounds are ecotoxic, harmful to human health and the environment, and new regulations tend to limit their use and constrain their commercialization. The current state-of-the-art highlights an urgent need to develop innovative antifouling strategies and the widespread use of safe and eco-friendly solutions to biodeterioration. Interestingly, innovative approaches and compounds have recently been identified, including the use of photocatalysts or natural compounds such as essential oils or quorum sensing inhibitors. Most of these solutions developed in laboratory settings appear very promising, although their efficiency and ecotoxicological features remain to be further tested before being widely marketed. This review highlights the complexity of choosing the adequate antifouling compounds when fighting biodeterioration and proposes developing case-to-case innovative strategies to raise this challenge, relying on integrative and multidisciplinary approaches.
Collapse
Affiliation(s)
- Mattea Romani
- Sorbonne Université, CNRS, Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), Observatoire Océanologique de Banyuls sur Mer, Avenue Pierre Fabre, 66650 Banyuls-sur-Mer, France
| | | | - Lionel Nicole
- Sorbonne Université, CNRS, Laboratoire de chimie de la matière condensée de Paris (LCMCP), 4 Place Jussieu, 75005 Paris, France
| | - Lionel Marcon
- Sorbonne Université, CNRS, Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), Observatoire Océanologique de Banyuls sur Mer, Avenue Pierre Fabre, 66650 Banyuls-sur-Mer, France
| | - Patrick Di Martino
- Université de Cergy-Pontoise, Laboratoire ERRMECe, rue Descartes site de Neuville-sur-Oise, 95031 Cergy-Pontoise, France
| | - Marcelino T Suzuki
- Sorbonne Université, CNRS, Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), Observatoire Océanologique de Banyuls sur Mer, Avenue Pierre Fabre, 66650 Banyuls-sur-Mer, France
| | - Philippe Lebaron
- Sorbonne Université, CNRS, Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), Observatoire Océanologique de Banyuls sur Mer, Avenue Pierre Fabre, 66650 Banyuls-sur-Mer, France
| | - Raphaël Lami
- Sorbonne Université, CNRS, Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), Observatoire Océanologique de Banyuls sur Mer, Avenue Pierre Fabre, 66650 Banyuls-sur-Mer, France.
| |
Collapse
|
7
|
Fallah Z, Zare EN, Khan MA, Iftekhar S, Ghomi M, Sharifi E, Tajbakhsh M, Nikfarjam N, Makvandi P, Lichtfouse E, Sillanpaa M, Varma RS. Ionic liquid-based antimicrobial materials for water treatment, air filtration, food packaging and anticorrosion coatings. Adv Colloid Interface Sci 2021; 294:102454. [PMID: 34102390 DOI: 10.1016/j.cis.2021.102454] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 05/25/2021] [Accepted: 05/25/2021] [Indexed: 02/08/2023]
Abstract
Efforts to widen the scope of ionic liquids applications across diverse research areas have flourished in the last two decades with developments in understanding and tailoring their physical, chemical, and biological properties. The promising applications of ionic liquids-based materials as antimicrobial systems is due to their ability and flexibility to be tailored in varying sizes, morphologies, and surface charges. Ionic liquids are also considered as greener materials. Common methods for the preparation of ionic liquid-based materials include crosslinking, loading, grafting, and combination of ionic liquids with other polymeric materials. Recent research focuses on the tuning of the biological properties to design novel ionic liquids-based antimicrobial materials. Here, the properties, synthesis and applications of ionic liquids and ionic liquids-based materials are reviewed with focus on antimicrobial activities applied to water treatment, air filtration, food packaging, and anticorrosion.
Collapse
|
8
|
Kumer A, Khan MW. The effect of alkyl chain and electronegative atoms in anion on biological activity of anilinium carboxylate bioactive ionic liquids and computational approaches by DFT functional and molecular docking. Heliyon 2021; 7:e07509. [PMID: 34296013 PMCID: PMC8282962 DOI: 10.1016/j.heliyon.2021.e07509] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/12/2021] [Accepted: 07/05/2021] [Indexed: 01/22/2023] Open
Abstract
The Brønsted acid-base neutralization was executed for synthesis of the anilinium carboxylate ionic liquids (ACILs), and obtained highly viscous liquids with yields about (90-94)%. These ILs were purified by distillation process and used vacuum oven, as well as characterized by FT-IR, UV spectroscopy and 1H-NMR. To evaluate the antimicrobial activity, the well diffusion method was used against eight human pathogenic bacteria, showing inhibition of zone at 13 mm-27 mm, and three fungi with result about 60%. Plus, the DFT functional from material studio 8.0 was used for evaluation of computational screening for estimating the chemical reactivity, HOMO, LUMO and HOMO-LUMO gap, recorded from -7.252 to -8.20 kcal/mol. The IL05 has showed about -6.5 kcal/mol docking score as standard inhibitor, as and higher than starting. Form AMDET properties, it has revealed that they have low toxicity, higher absorption through the biological system and non-carcinogenic. Finally, the electronegative groups, such as F, Cl and Br atoms in anion can show the higher antimicrobial activity and molecular docking score among all others while F atom containing IL05 shows the highest docking score and antimicrobial activity. However, it is concluded that rather than long large alkyl chain of anion, F atom (the highest electronegative atom) containing anion is better for biologically significance ILs.
Collapse
Affiliation(s)
- Ajoy Kumer
- Organic Research Laboratory, Department of Chemistry, Bangladesh University of Engineering and Technology (BUET), Dhaka, 1000, Bangladesh
| | - Md. Wahab Khan
- Organic Research Laboratory, Department of Chemistry, Bangladesh University of Engineering and Technology (BUET), Dhaka, 1000, Bangladesh
| |
Collapse
|
9
|
Olsen MR, Colliard I, Rahman T, Miyaishi TC, Harper B, Harper S, Nyman M. Hybrid Polyoxometalate Salt Adhesion by Butyltin Functionalization. ACS APPLIED MATERIALS & INTERFACES 2021; 13:19497-19506. [PMID: 33856779 DOI: 10.1021/acsami.1c03269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Polyoxometalate (POM)-based ionic liquids, with nearly infinite compositional variations to fine-tune antimicrobial and physical properties, function as water purification filters, anticorrosion/antibacterial coatings for natural stones, self-repairing acid-resistant coatings, catalysts, and electroactive, stable solvents. By combining hydrophobic quaternary ammonium cations (QACs; tetraheptylammonium and trihexyltetradecylammonium) with butyltin-substituted polyoxotungstates [(BuSn)3(α-SiW9O37)] via repeated solvent extraction-ion exchange, we obtained phase-pure hybrid POM salts (referred to as such because they melt above room temperature). If the solvent extraction process is performed only once, then solids with high salt contamination and considerably lower melting temperatures are obtained. Solution-phase behavior, based on POM-QAC interactions, was similar for all formulations in polar and nonpolar organic solvents, as observed by X-ray scattering and multinuclear magnetic resonance spectroscopy. However, solid thin films of the butyltin-functionalized hybrid POM salts were significantly more stable and adhesive than their inorganic analogues. We attribute this to the favorable hydrophobic interactions between the butyltin groups and the QACs. All synthesized hybrid POM salts display a potent antimicrobial activity toward Escherichia coli. These studies provide fundamental form-function understanding of hybrid POM salts, based on interactions between ions in these complex hybrid phases.
Collapse
Affiliation(s)
- Morgan Rose Olsen
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
- Department of Chemistry, Reed College, Portland, Oregon 97202, United States
| | - Ian Colliard
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - Tasnim Rahman
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - Taiki C Miyaishi
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon 97331, United States
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, Oregon 97331, United States
| | - Bryan Harper
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon 97331, United States
| | - Stacey Harper
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon 97331, United States
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, Oregon 97331, United States
| | - May Nyman
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| |
Collapse
|
10
|
|