Attachment of gold nanoparticles on cellulose nanofibrils via click reactions and electrostatic interactions

Guo, Jiaqi; Filpponen, Ilari; Su, Pingping; Laine, Janne; Rojas, Orlando J.

doi:10.1007/s10570-016-1042-7

Cited by 49 publications

(27 citation statements)

References 58 publications

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“…Materials : The primary building blocks, biogenic silica particles (BSiO 2 ), were isolated from Equisetum arvense (horsetail) following a biorefining procedure previously described . CNFs, used as adhesion promoter for the superstructure assembly, were prepared by microfluidizing bleached sulfite hardwood (birch) fibers . Thymol (CAS: 89‐83‐8) was purchased from Sigma‐Aldrich and used as a model cargo.…”

Section: Methodsmentioning

confidence: 99%

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Green Formation of Robust Supraparticles for Cargo Protection and Hazards Control in Natural Environments

Mattos

Greca

Tardy

et al. 2018

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In parallel with important technological advances, nanoparticles have brought numerous environmental and toxicological challenges due to their high mobility and nonspecific surface activity. The hazards associated with nanoparticles can be significantly reduced while simultaneously keeping their inherent benefits by superstructuring. In this study, a low-temperature and versatile methodology is employed to structure nanoparticles into controlled morphologies from biogenic silica, used as a main building block, together with cellulose nanofibrils, which promote cohesion. The resultant superstructures are evaluated for cargo loading/unloading of a model, green biomolecule (thymol), and for photo-accessibility and mobility in soil. The bio-based superstructures resist extremely high mechanical loading without catastrophic failure, even after severe chemical and heat treatments. Additionally, the process allows pre and in situ loading, and reutilization, achieving remarkable dynamic payloads as high as 90 mg g . The proposed new and facile methodology is expected to offer a wide range of opportunities for the application of superstructures in sensitive and natural environments.

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Section: Methodsmentioning

confidence: 99%

“…[14] CNFs, used as adhesion promoter for the superstructure assembly, were prepared by microfluidizing bleached sulfite hardwood (birch) fibers. [56] Thymol (CAS: 89-83-8) was purchased from Sigma-Aldrich and used as a model cargo. Concentrations are reported in weight%.…”

Section: Methodsmentioning

confidence: 99%

Green Formation of Robust Supraparticles for Cargo Protection and Hazards Control in Natural Environments

Mattos

Greca

Tardy

et al. 2018

Small

Self Cite

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“…Various materials including graphene, silica, metal oxide, and polymers, have been used as the substrate materials to load the AuNCs in order to prevent their aggregation ( Ji et al, 2013 ). Presently, only a few studies considered AuNCs as the precursor to construct the antibacterial CNF film ( Lin and Alain, 2014 ; Guo et al, 2016 ). Hence, we hypothesized that coupling the AuNCs with CNF can vest the antibacterial property to the CNF film and provide a remarkable substrate material for AuNCs.…”

Section: Introductionmentioning

confidence: 99%

Coupling Biocompatible Au Nanoclusters and Cellulose Nanofibrils to Prepare the Antibacterial Nanocomposite Films

Wang

Yin

Dong

et al. 2020

Front. Bioeng. Biotechnol.

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Cellulose nanofibrils (CNF) is considered as an inexhaustible precursor to produce antibacterial materials, such as antibacterial hydrogel, antibacterial paper, and antibacterial film. However, the poor antimicrobial property of neat CNF required it should be coupled with an antibacterial ingredient. Herein, biocompatible Au nanoclusters (AuNCs) were synthesized and added into the CNF dispersion to prepare a novel antibacterial film (AuNCs@CNF film). The effects of addition of AuNCs with different amount on the morphology and physicochemical properties of AuNCs@CNF films were characterized using atomic force microscopy (AFM), scanning electron microscopy (SEM), X-ray diffraction (XRD), FTIR (Fourier-transform infrared), light transmittance spectra, and thermogravimetric analysis (TGA). The results showed that AuNCs did not affect the nano-structural features of the CNF film and its basic structures, but could greatly increase the hydrophilicity, the flexibility and the thermal stability of CNF film, which might improve its application in antimicrobial wound-healing dressing. The prepared AuNCs@CNF films demonstrated high antibacterial properties toward Escherichia coli (E. coli) and Streptococcus mutans (S. mutans) both in vitro and in vivo, which can prohibit their growths and promote the healing of bacteria-infected wound, respectively. Thus, the prepared AuNCs@CNF film with great antibacterial properties could be applicable in biomedical field.

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“…In general, the methodologies used to prepare cellulose‐AuNP materials involve either the in situ reduction of gold(III) chloride hydrate with agents like sodium borohydride, poly(ethyleneimine), lecithin, thiol, or amidoxime modified cellulose or the adsorption/deposition of pre‐synthesized AuNPs onto the materials of interest. More recently, Guo et al have resorted to a click chemistry strategy to covalently immobilize AuNPs on carbon nanofibers …”

Section: Introductionmentioning

confidence: 99%

“…More recently, Guo et al have resorted to a click chemistry strategy to covalently immobilize AuNPs on carbon nanofibers. 17 The catalytic modules of many carbohydrate-active enzymes found in nature are linked to modular proteins called carbohydratebinding modules (CBMs). Such CBMs promote a close proximity between carbohydrate-active enzymes and their substrates.…”

Section: Introductionmentioning

confidence: 99%

A biomolecular recognition approach for the functionalization of cellulose with gold nanoparticles

Almeida

Rosa

Azevedo

et al. 2017

J of Molecular Recognition

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Materials with new and improved functionalities can be obtained by modifying cellulose with gold nanoparticles (AuNPs) via the in situ reduction of a gold precursor or the deposition or covalent immobilization of pre-synthesized AuNPs. Here, we present an alternative biomolecular recognition approach to functionalize cellulose with biotin-AuNPs that relies on a complex of 2 recognition elements: a ZZ-CBM3 fusion that combines a carbohydrate-binding module (CBM) with the ZZ fragment of the staphylococcal protein A and an anti-biotin antibody. Paper and cellulose microparticles with AuNPs immobilized via the ZZ-CBM3:anti-biotin IgG supramolecular complex displayed an intense red color, whereas essentially no color was detected when AuNPs were deposited over the unmodified materials. Scanning electron microscopy analysis revealed a homogeneous distribution of AuNPs when immobilized via ZZ-CBM3:anti-biotin IgG complexes and aggregation of AuNPs when deposited over paper, suggesting that color differences are due to interparticle plasmon coupling effects. The approach could be used to functionalize paper substrates and cellulose nanocrystals with AuNPs. More important, however, is the fact that the occurrence of a biomolecular recognition event between the CBM-immobilized antibody and its specific, AuNP-conjugated antigen is signaled by red color. This opens up the way for the development of simple and straightforward paper/cellulose-based tests where detection of a target analyte can be made by direct use of color signaling.

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Attachment of gold nanoparticles on cellulose nanofibrils via click reactions and electrostatic interactions

Cited by 49 publications

References 58 publications

Green Formation of Robust Supraparticles for Cargo Protection and Hazards Control in Natural Environments

Green Formation of Robust Supraparticles for Cargo Protection and Hazards Control in Natural Environments

Coupling Biocompatible Au Nanoclusters and Cellulose Nanofibrils to Prepare the Antibacterial Nanocomposite Films

A biomolecular recognition approach for the functionalization of cellulose with gold nanoparticles

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