One-Pot Synthesis of Carboxymethylcellulose-Templated Copper-NPs for Heterocatalytic Huisgen-Click Reactions on Lignocellulosic Bamboo Slices

Sá, Druval Santos de; Rodrigues, Elton Jorge da Rocha; Suguihiro, N. M.; Veiga, Amanda Garcez; Paciornik, Sidnei; Massi, Alessandro; Pandoli, Omar

doi:10.1007/s10562-022-03923-6

Cited by 11 publications

(3 citation statements)

References 70 publications

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“…de Sá developed Copper nanoparticles (mainly as Cu 0 , CuNPs) through a simple synthesis mediated by commercial carboxymethylcellulose (CMC) at different temperatures (30-60 °C) and different concentrations of Cu 2 + precursor in aqueous basic medium (1-5 mM). [102] The real-time monitoring of CuNP formation was performed by time-domain NMR (TD-NMR) showing the higher influence of the temperature compared to the concentration of nominal Cu 2 + paramagnetic species on colloid generation. The DLS studies revealed substantial nanoparticle diameters due to residual polymeric chains on the metallic copper surface, indicating a negative ζpotential that enhances colloidal stability and prevents aggregation.…”

Section: Cu Nps Supported On Polymer-based Porous Materialsmentioning

confidence: 99%

A New Insight Into The Huisgen Reaction: Heterogeneous Copper Catalyzed Azide‐Alkyne Cycloaddition for the Synthesis of 1,4‐Disubstituted Triazole (From 2018–2023)

Kasana,

Nigam,

Singh

et al. 2024

Chemistry & Biodiversity

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The Huisgen cycloaddition, often referred to as 1,3‐Dipolar cycloaddition, is a well‐established method for synthesizing 1,4‐disubstituted triazoles. Originally conducted under thermal conditions [3+2] cycloaddition reactions were limited by temperature, prolonged reaction time, and regioselectivity. The copper catalyzed azide‐alkyne cycloaddition (CuAAC) has emerged as a prominent method for producing 1,2,3‐triazole with excellent yields and exceptional regioselectivity. Copper catalysts conventionally facilitate azide‐alkyne cycloadditions, but challenges include instability and recycling issues. In recent years, there has been a growing demand for heterogeneous catalysts in various chemical reactions. The present review covers recent advancements from year 2018 to 2023 in the field of click reactions for obtaining 1,2,3‐triazoles through Cu catalyzed 1,3‐dipolar azide‐alkyne cycloaddition and the properties of the catalyst, reaction conditions such as solvent, temperature, reaction time, and the impact of different heterogeneous copper catalysts on product yield.

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Section: Cu Nps Supported On Polymer-based Porous Materialsmentioning

confidence: 99%

A New Insight Into The Huisgen Reaction: Heterogeneous Copper Catalyzed Azide‐Alkyne Cycloaddition for the Synthesis of 1,4‐Disubstituted Triazole (From 2018–2023)

Kasana,

Nigam,

Singh

et al. 2024

Chemistry & Biodiversity

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show abstract

“…O suporte foi utilizado na síntese de 1,2,3-triazóis 1,4-dissubstituídos com diferentes condições de solvente, temperatura e carga catalítica de CuNPs na superfície do suporte de bambu, e apresentou excelentes condições de reprodutibilidade e reciclabilidade. 74 A exploração dos sistemas vasculares de bambu como canais micrométricos para fluxo de líquidos por capilaridade ou bombeamento foi iniciada por Kuan, York e Cheng (2015).…”

Section: Yu Et Al (2012) Mostraram Que O Bambu Podia Ser Funcionaliza...unclassified

“…79 De Sá e colaboradores tentaram funcionalizar o microrreatores lignocelulósicos de bambu (LµR) com CuNPs e realizar a reação de cicloadição alcino-azida catalisada por cobre(I) (CuAAC) sob condições de aquecimento do meio reacional em fluxo contínuo, entretanto, a propriedade de isolante térmico do bambu natural inviabilizou o aquecimento dos canais internos por fonte externa de calor. 74 Embora os dispositivos microfluídicos de biomassa lignocelulósica já contenham canais previamente fabricados pela natureza, os mesmos precisam ser aquecidos por uma fonte de calor externa. Entretanto, a principal limitação desse tipo de dispositivo é a inviabilidade de aquecimento mesmo a elevadas temperaturas, pois apresentam características isolantes.…”

Section: Yu Et Al (2012) Mostraram Que O Bambu Podia Ser Funcionaliza...unclassified

Material De Carbono Condutor a Partir Da Pirólise Do Bambu Para Aplicações Elétricas, Eletrotérmicas E Eletroquímicas

GONTIJO¹

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Sustainable Grafting of (Ligno)Cellulose‐Based Powders with Antibacterial Functionalities: Effect of Biomass Type and Synthesis Conditions

Testa,

Pandoli,

Cecone

et al. 2024

Advanced Sustainable Systems

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The problem of microbial resistance to antibiotics makes it necessary to develop new materials capable of overcoming the resistance to the chemicals currently used. Herein, the antibacterial properties of modified bamboo powder are tested and compared with modified cellulose isolated from soybean hulls. Such biomasses are functionalized in a water solution with (3‐aminopropyl)triethoxysilane to introduce primary amino groups, and two different functionalization procedures are adopted: the first requires conventional heating steps, whereas the second implies microwave radiation use. The main outcomes from the characterizations evidence that the materials prepared with the thermal treatment are stabler than those obtained by the microwave‐assisted procedure and that bamboo‐derived samples react with the (3‐aminopropyl)triethoxysilane through different functionalities other than hydroxyl groups. Finally, the antibacterial activity measured against Escherichia coli and Staphylococcus aureus shows that all the functionalized samples could efficiently remove Gram‐positive and Gram‐negative bacteria (removal > 93%). Moreover, active filters are realized by packing the material powders: when the bacterial inoculum passes through them in a continuous flow, some differences are observed between cellulose and bamboo‐based materials, but the overall performances show that after 17 min and five recirculation cycles, both the samples reach an excellent Escherichia coli removal of about 100%.

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One-Pot Synthesis of Carboxymethylcellulose-Templated Copper-NPs for Heterocatalytic Huisgen-Click Reactions on Lignocellulosic Bamboo Slices

Cited by 11 publications

References 70 publications

A New Insight Into The Huisgen Reaction: Heterogeneous Copper Catalyzed Azide‐Alkyne Cycloaddition for the Synthesis of 1,4‐Disubstituted Triazole (From 2018–2023)

A New Insight Into The Huisgen Reaction: Heterogeneous Copper Catalyzed Azide‐Alkyne Cycloaddition for the Synthesis of 1,4‐Disubstituted Triazole (From 2018–2023)

Material De Carbono Condutor a Partir Da Pirólise Do Bambu Para Aplicações Elétricas, Eletrotérmicas E Eletroquímicas

Sustainable Grafting of (Ligno)Cellulose‐Based Powders with Antibacterial Functionalities: Effect of Biomass Type and Synthesis Conditions

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