New protic ionic liquids for fungi and bacteria removal from paper heritage artefacts

Dimitrić, Nataša; Spremo, Nemanja; Belić, Sanja; Karaman, Maja; Kоvаčеvić, Strаhinjа; Karadžić, Milica; Podunavac‐Kuzmanović, Sanja O.; Korolija-Crkvenjakov, Daniela; Gadžurić, Slobodan

doi:10.1039/c9ra03067k

Cited by 14 publications

(15 citation statements)

References 28 publications

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“…The optimal biological effect at a specific cation chain length is regularly due to a combination of hydrophobicity, absorption capacity, and critical micelle concentration (CMC). Higher molecular weight ionic liquids tend to be fixed better in the structure of wood, with minimal leaching potential [ 108 ].…”

Section: Antifungal Character Of Ionic Liquidsmentioning

confidence: 99%

“…Still, these tend to necessitate a higher critical concentration to be effective. The higher amount needed for low molecular weight ILs to be effective could be due to their higher absorption into the wood cell walls/ microfibrils, only a low amount remaining at the surface to interact with the fungal hyphae or with the secreted enzymes [ 108 , 109 ].…”

Section: Antifungal Character Of Ionic Liquidsmentioning

confidence: 99%

“…For example, for imidazolium chloride ILs, the highest antifungal activity was registered for cyclooctyl and cyclododecyl substituents [ 112 ]. Similarly, halogen or oxygen heteroatoms in the side chain or the presence of sp 2 double-bonds (such as in the allyl radical) tend to enhance the biocidal effect, due to a better interaction with the fungal cell membrane [ 32 , 108 ].…”

Section: Antifungal Character Of Ionic Liquidsmentioning

confidence: 99%

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Ionic Liquids as Antifungal Agents for Wood Preservation

Croitoru

Roată

2020

Molecules

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Ionic liquids represent a class of highly versatile organic compounds used extensively in the last decade for lignocellulose biomass fractionation and dissolution, as well as property modifiers for wood materials. This review is dedicated to the use of ionic liquids as antifungal agents for wood preservation. Wood preservation against fungal attack represents a relatively new domain of application for ionic liquids, emerging in the late 1990s. Comparing to other application domains of ionic liquids, this particular one has been relatively little researched. Ionic liquids may be promising as wood preservatives due to their ability to swell wood, which translates into better penetration ability and fixation into the bulk of the wood material than other conventional antifungal agents, avoiding leaching over time. The antifungal character of ionic liquids depends on the nature of their alkyl-substituted cation, on the size and position of their substituents, and of their anion. It pertains to a large variety of wood-colonizing fungi, both Basidiomycetes and Fungiimperfecti.

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Section: Antifungal Character Of Ionic Liquidsmentioning

confidence: 99%

Section: Antifungal Character Of Ionic Liquidsmentioning

confidence: 99%

Section: Antifungal Character Of Ionic Liquidsmentioning

confidence: 99%

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Ionic Liquids as Antifungal Agents for Wood Preservation

Croitoru

Roată

2020

Molecules

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“…Ionic liquids have been widely studied for biomass fractionation processes and even in treating paper artifacts, paper restoration and antifungal agents for wood preservation [ 76 , 77 , 78 , 79 , 80 ]. The ILs that qualify for this application presents several characteristics like the presence of bulkier substituents, halogens or oxygen heteroatoms in the cation side-chain or even the presence of sp 2 double bonds (like alkyl radicals) that promote the antifungal character of ILs due to a better interaction with the fungal cell membrane.…”

Section: Effect Of Ionic Liquids On Microorganismsmentioning

confidence: 99%

Ionic Liquids—A Review of Their Toxicity to Living Organisms

Gonçalves

Paredes

Cristino

et al. 2021

IJMS

128

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Ionic liquids (ILs) were initially hailed as a green alternative to traditional solvents because of their almost non-existent vapor pressure as ecological replacement of most common volatile solvents in industrial processes for their damaging effects on the environment. It is common knowledge that they are not as green as desired, and more thought must be put into the biological consequences of their industrial use. Still, compared to the amount of research studying their physicochemical properties and potential applications in different areas, there is a scarcity of scientific papers regarding how these substances interact with different organisms. The intent of this review was to compile the information published in this area since 2015 to allow the reader to better understand how, for example, bacteria, plants, fish, etc., react to the presence of this family of liquids. In general, lipophilicity is one of the main drivers of toxicity and thus the type of cation. The anion tends to play a minor (but not negligible) role, but more research is needed since, owing to the very nature of ILs, except for the most common ones (imidazolium and ammonium-based), many of them are subject to only one or two articles.

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“…Protic ionic liquids, based on the 1-ammonium-2-propanol cation and a series of carboxylates anions, have been recently proposed as "green" cleaner agents, as an alternative to thymol [78]. Schmitz et al [79] observed that imidazolium ILs used in "paper de-acidification and reinforcement processes" have high similarity with well-known antimicotic agents such as Clotrimazole and Miconazole.…”

Section: Ionic Liquidsmentioning

confidence: 99%

Present and Future Perspectives for Biocides and Antifouling Products for Stone-Built Cultural Heritage: Ionic Liquids as a Challenging Alternative

2020

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This review offers an overview of the most recent research activities on counteracting the biodeterioration process of stone monuments, underlining all those aspects regarding eventual procedural drawbacks and compliance with sustainable criteria. For this purpose, the definition of “green conservation of cultural heritage” has been proposed. Its basics have been utilized in the text to highlight the issues arising from the most common conservative procedures as well as guidelines for the development of innovative technologies. The review then deals with the most innovative antimicrobial approaches, among which nano- and bio-technologies play a main role. Ionic liquids are a special class of salts, which can be prepared by applying Safe by Design concepts, to meet the Green Conservation criteria.

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New protic ionic liquids for fungi and bacteria removal from paper heritage artefacts

Abstract: New protic ionic liquids with 1-ammonium-2-propanol cation and nine different anions were prepared in order to study their antimicrobial activity and possible application for fungi and bacteria removal from deteriorated paper heritage.

Cited by 14 publications

References 28 publications

Ionic Liquids as Antifungal Agents for Wood Preservation

Ionic Liquids as Antifungal Agents for Wood Preservation

Ionic Liquids—A Review of Their Toxicity to Living Organisms

Present and Future Perspectives for Biocides and Antifouling Products for Stone-Built Cultural Heritage: Ionic Liquids as a Challenging Alternative

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