Surface Coating of Titanium Dioxide Nanoparticles with a Polymerizable Chelating Agent and Its Physicochemical Property

Kim, Nari; Kim, Yerin; Yun, Jinwon; Jeong, Soonkyu; Lee, Sulhae; Lee, Beom Zoo; Shim, Jongwon

doi:10.1021/acsomega.3c00734

Cited by 6 publications

(3 citation statements)

References 44 publications

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“…Moreover, these nanoparticles can be tailored by targeting ligands or biomolecules, enhancing speci city and biocompatibility for applications such as targeted drug delivery or imaging. With precise control over particle properties during synthesis and assured compatibility with biological systems, chitosan-coated titanium dioxide nanoparticles emerge as versatile nanomaterial with promising prospects in various elds [33][34][35][36][37][38][39]. Several in vitro studies have assessed the potency of chitosan-coated titanium dioxide nanoparticles however, further investigation is warranted to evaluate their e cacy in vivo.…”

Section: Resultsmentioning

confidence: 99%

Chitosan-coated titanium dioxide nanoparticles: Fabrication, characterisation and toxicological evaluation in Drosophila melanogaster

Priscilla,

Venkatasubbu,

Mohideen

2024

Preprint

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Titanium dioxide nanoparticle (TiO2 NP) is one the most highly sought-after nanomaterials and are prevalent in many consumer products such as personal care products, paints and coatings, and food colouring. However, their pervasive use and high demand are expected to adversely affect organisms and ecosystems. Several articles suggest that surface modification of TiO2 with appropriate materials could mitigate its negative impacts. To facilitate this, we utilised chitosan (CS), a naturally occurring biopolymer, as a coating material to fabricate a biomaterial-based nanocomposite for consumer applications. TiO2 integration into chitosan was analysed using XRD, FTIR, UV-Vis spectroscopy, and SEM. Drosophila was employed as a model organism to assess the toxicity of the coated nanoparticles, aligning with efforts to prevent animal cruelty. The toxicity was analysed in both larvae and adult flies. Variations in antioxidant enzyme activity were observed, implying activation of nanoparticle clearance pathways. Antioxidant enzyme activation is a normal response to the ingestion of xenobiotics. Nonetheless, the cumulative response did not suggest any severe toxicity despite slight changes in antioxidant mechanisms. Our objective, however, is to employ the nanocomposite for dermal uses. Hence, the nanocomposite can be recommended for consumer applications.

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Section: Resultsmentioning

confidence: 99%

Chitosan-coated titanium dioxide nanoparticles: Fabrication, characterisation and toxicological evaluation in Drosophila melanogaster

Priscilla,

Venkatasubbu,

Mohideen

2024

Preprint

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“…Surface modification endeavors to modify a material’s surface properties and functionality for a specific purpose without adversely influencing the bulk properties. − …”

Section: Surface Functionalization Of Polyurethane Nanoparticlesmentioning

confidence: 99%

Polyurethane Nanoparticles as Versatile Tools in Nanomedicine: A Review

Saha,

Trivedi,

Rengan

et al. 2024

ACS Appl. Nano Mater.

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The rapidly advancing field of nanomedicine has witnessed the emergence of polyurethane nanoparticles (PUNPs) as exceptionally versatile tools with transformative potential. This comprehensive review dives into the various roles that PUNPs play in the realm of nanomedicine, positioning them as pivotal components in therapeutic, diagnostic, and theranostic applications. With a focus on their unique characteristics, these nanoparticles offer a platform for precision at the nanoscale, a critical attribute in the intricate landscape of medical interventions. This review precisely navigates through the biobased synthesis method and the recent applications (2019−2023) of PUNPs in the therapeutic, diagnostic, and theranostic fields. Furthermore, it explores innovative approaches in surface functionalization, elucidating how tailored modifications can optimize their interaction with biological entities. Beyond the conventional realm, PUNPs emerge as carriers of therapeutic cargo and strategic players in diagnostics and theranostics, showcasing their multifaceted utility. In conclusion, this review navigates beyond generalized statements, offering a tailored exploration into the specific attributes that make polyurethane nanoparticles indispensable in advancing the frontiers of nanomedicine. Through a meticulous examination of their synthesis, functionalization, and applications, this review aims to contribute a different understanding of PUNPs' versatile roles in drug delivery systems, imaging, and theranostics.

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“…However, they face a severe aerodynamic heating problem during high-speed flight [1][2][3]. To block heat flux transfer inward and ensure safe service in extreme environments, it is of great significance to improve the comprehensive performance level of the existing thermal protection materials [2,[4][5][6][7]. As a commonly used large-area ceramic passive thermal protection material for aerospace vehicles, flexible external thermal insulation blankets have broad application prospects due to their excellent insulation performance, thermal shock resistance, and compression-rebound performance [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Ceramic Fiber Threads with Enhanced Abrasion Resistance Performance

Zhang,

Hou,

et al. 2024

Materials

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Ceramic fiber thread is one of the key components in flexible external thermal insulation blankets, and it has been applied in various fields as a flexible ceramic fibrous material with excellent deformability and high-temperature resistance. However, ceramic fiber threads are often subjected to reciprocating friction motion at specific bending angles, making them highly susceptible to abrade and fracture. Enhancing the abrasion resistance performance of ceramic fiber threads under bending conditions is the future trend and remains a significant challenge. Hence, we design and construct a novel polyurethane-modified coating on the ceramic fiber threads to improve their abrasion resistance performance. The effects of the types and concentrations of modifiers on the microstructure, abrasion resistance property, and tensile property of ceramic fiber threads are systematically investigated. The ceramic fiber threads, after modification with hexamethylene diisocyanate waterborne polyurethane (HDI-WPU) with a concentration of 3%, exhibit excellent abrasion resistance properties. The number of friction cycles at fracture of the modified ceramic fiber thread is more than three times, and the tensile strength is more than one and a half times, that of the original ceramic fiber thread, demonstrating the great potential of the HDI-WPU modifier for enhancing the abrasion resistance performance of ceramic fiber threads.

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Surface Coating of Titanium Dioxide Nanoparticles with a Polymerizable Chelating Agent and Its Physicochemical Property

Cited by 6 publications

References 44 publications

Chitosan-coated titanium dioxide nanoparticles: Fabrication, characterisation and toxicological evaluation in Drosophila melanogaster

Chitosan-coated titanium dioxide nanoparticles: Fabrication, characterisation and toxicological evaluation in Drosophila melanogaster

Polyurethane Nanoparticles as Versatile Tools in Nanomedicine: A Review

Preparation of Ceramic Fiber Threads with Enhanced Abrasion Resistance Performance

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