Halloysite nanotubes/Keratin composites for wool treatment

Caruso, Maria Rita; Cavallaro, Giuseppe; Milioto, Stefana; Lazzara, Giuseppe

doi:10.1016/j.clay.2023.106930

Cited by 29 publications

(6 citation statements)

References 41 publications

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“…76 Colloidal compounds are also being developed for the consolidation of canvas paintings, where the need is to overcome the limitations of synthetic adhesives or natural glues that can alter the optical properties of painted layers or develop detrimental chemicals. 53 In particular, starch nanoparticles, 77 fibroin-nanocellulose hybrids, 78,79 or keratin mixed with halloysite nanotubes 80 have been recently proved to be promising consolidants or adhesives for paints and textiles, showing the great potential of biopolymers in the conservation of cultural heritage.…”

Section: ■ Nanoparticles and Hybrid Compositesmentioning

confidence: 99%

From Nanoparticles to Gels: A Breakthrough in Art Conservation Science

Chelazzi

Baglioni

2023

Langmuir

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Cultural heritage is a crucial resource to increase our society's resilience. However, degradation processes, enhanced by environmental and anthropic risks, inevitably affect works of art, hindering their accessibility and socioeconomic value. In response, interfacial and colloidal chemistry has proposed valuable solutions over the past decades, overcoming the limitations of traditional restoration materials and granting cost-and time-effective remedial conservation of the endangered artifacts. Ranging from inorganic nanoparticles to hybrid composites and soft condensed matter (gels, microemulsions), a wide palette of colloidal systems has been made available to conservators worldwide, targeting the consolidation, cleaning, and protection of works of art. The effectiveness and versatility of the proposed solutions allow the safe and effective treatment of masterpieces belonging to different cultural and artistic productions, spanning from classic ages to the Renaissance and modern/contemporary art. Despite these advancements, the formulation of materials for the preservation of cultural heritage is still an open, exciting field, where recent requirements include coping with the imperatives of the Green Deal to foster the production of sustainable, low-toxicity, and environmentally friendly systems. This review gives a critical overview starting from pioneering works up to the latest advancements in colloidal systems for art conservation, a challenging topic where effective solutions can be transversal to multiple sectors even beyond cultural heritage preservation, from the pharmaceutical and food industry, to cosmetics, tissue engineering, and detergency.

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Section: ■ Nanoparticles and Hybrid Compositesmentioning

confidence: 99%

From Nanoparticles to Gels: A Breakthrough in Art Conservation Science

Chelazzi

Baglioni

2023

Langmuir

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“…Among wound healing and hemostatic applications, keratin hydrogels were also used in human hair disorders. For this cosmetic purpose, the keratinbased hydrogels were filled with halloysite nanotubes [305,306], which are nanofillers for biopolymeric matrices. As reported in the literature, halloysite-protein composites are used in several applications, such as sustained release of bioactive molecules, dye removal, and enzyme immobilization.…”

Section: Keratinmentioning

confidence: 99%

Diversity of Bioinspired Hydrogels: From Structure to Applications

Lupu¹,

Grădinaru²,

Gradinaru

et al. 2023

Gels

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Hydrogels are three-dimensional networks with a variety of structures and functions that have a remarkable ability to absorb huge amounts of water or biological fluids. They can incorporate active compounds and release them in a controlled manner. Hydrogels can also be designed to be sensitive to external stimuli: temperature, pH, ionic strength, electrical or magnetic stimuli, specific molecules, etc. Alternative methods for the development of various hydrogels have been outlined in the literature over time. Some hydrogels are toxic and therefore are avoided when obtaining biomaterials, pharmaceuticals, or therapeutic products. Nature is a permanent source of inspiration for new structures and new functionalities of more and more competitive materials. Natural compounds present a series of physico-chemical and biological characteristics suitable for biomaterials, such as biocompatibility, antimicrobial properties, biodegradability, and nontoxicity. Thus, they can generate microenvironments comparable to the intracellular or extracellular matrices in the human body. This paper discusses the main advantages of the presence of biomolecules (polysaccharides, proteins, and polypeptides) in hydrogels. Structural aspects induced by natural compounds and their specific properties are emphasized. The most suitable applications will be highlighted, including drug delivery, self-healing materials for regenerative medicine, cell culture, wound dressings, 3D bioprinting, foods, etc.

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“…Halloysite nanotubes (HNTs) are naturally occurring hollow clay nanotubes characterized by their distinctive tubular structure. 1 They are derived from the mineral halloysite, composed of alumina and silica, and chemically similar to Kaolinite (chemical formula: Al 2 Si 2 O 5 (OH) 4 . nH 2 O).…”

Section: Introductionmentioning

confidence: 99%

“…HNTs possess a high aspect ratio, large surface area, biocompatible properties, and excellent mechanical properties, making them highly attractive for various applications. , These nanotubes can be functionalized and modified to enhance their properties and enable tailored interactions with different substances. − HNTs typically have an internal diameter of 10–30 nm, an external diameter of 40–70 nm, and a length between 200 and 2000 nm . HNTs are one of the most important components of newly emerging nanocomposite agents utilized for drug delivery, coating materials, biomedical applications, tissue engineering scaffolds, decontamination purposes, catalysis, and packaging. − Fe 3 O 4 nanoparticles, another important material, have significant potential to be utilized in biomedical applications due to their magnetic properties. Introducing Fe 3 O 4 nanoparticles to the surface of HNTs makes these nanotubes highly separable, easily accessible, and specific for on-site drug delivery candidates.…”

Section: Introductionmentioning

confidence: 99%

Halloysite Nanotubes Decorated with Fe₃O₄ Nanoparticles and Tannic Acid for Effective Inhibition of E. coli Biofilm

Bu,

Kim,

Sung

et al. 2023

ACS Appl. Nano Mater.

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There is an urgent need to develop an efficient approach to limit biofilm formations. Recent progress in the biofilm treatment field showed remarkable utilization of emerging nanoformulations. In this study, we decorated clay halloysite nanotubules with tannic acid and Fe 3 O 4 Nanoparticles. The successful synthesis of the nanocomposite was validated by characterization techniques such as XRD, FE-SEM, HR-TEM, SEM-EDS, TEM-EDS, XPS, and VSM analysis. After successful characterizations of nanocomposite (HNTs-M-Tannic acid), antibiofilm effect analysis experiments such as Crystal Violet (CV) staining, biofilmforming marker gene expression analysis, morphology evaluation by SEM, and live and dead cell assay were performed. The Crystal Violet (CV) staining results concluded a significant 57.8% inhibition of the E. coli biofilm formation. Comprehensive gene expression analysis of f imA and csgA for E. coli biofilm formation confirmed the capacity of HNTs-M-Tannic acid to impede bacterial cell adhesion, thereby inhibiting biofilm formation. The SEM images and live and dead assay results confirmed and marked the potential of the developed HNTs-M-Tannic acid as an antibiofilm agent against E. coli. In conclusion, this study produced a unique nanocomposite, HNTs-M-Tannic acid, which offers potential as an economically viable, magnetically separable, and biocompatible nanoformulations for antibiofilm studies.

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Halloysite nanotubes/Keratin composites for wool treatment

Cited by 29 publications

References 41 publications

From Nanoparticles to Gels: A Breakthrough in Art Conservation Science

From Nanoparticles to Gels: A Breakthrough in Art Conservation Science

Diversity of Bioinspired Hydrogels: From Structure to Applications

Halloysite Nanotubes Decorated with Fe₃O₄ Nanoparticles and Tannic Acid for Effective Inhibition of E. coli Biofilm

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Halloysite nanotubes/Keratin composites for wool treatment

Cited by 29 publications

References 41 publications

From Nanoparticles to Gels: A Breakthrough in Art Conservation Science

From Nanoparticles to Gels: A Breakthrough in Art Conservation Science

Diversity of Bioinspired Hydrogels: From Structure to Applications

Halloysite Nanotubes Decorated with Fe3O4 Nanoparticles and Tannic Acid for Effective Inhibition of E. coli Biofilm

Contact Info

Product

Resources

About

Halloysite Nanotubes Decorated with Fe₃O₄ Nanoparticles and Tannic Acid for Effective Inhibition of E. coli Biofilm