Dopa-based facile procedure to synthesize AgNP/cellulose nanofiber composite for antibacterial applications

Jatoi, Abdul Wahab; Ogasawara, Hiroshi; Kim, Ick Soo; Ni, Qing‐Qing

doi:10.1007/s13204-019-00952-3

Cited by 18 publications

(7 citation statements)

References 55 publications

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“…The small shoulder peak at 1729 cm –1 was associated with the carbonyl stretching of the carboxylic acid groups on the surface of the TEMPO-oxidized CNF . The intensities of the O–H stretching and bending vibration peaks in the CNF–Ag became weaker than those of CNF because of electrostatic interaction of hydroxyl groups with AgNPs. , Although some aldehyde groups in CNF may be oxidized to carboxyl groups by silver ammonia, the intensity and position of the carbonyl stretching peak in CNF–AgNPs did not change obviously compared to that of CNFs.…”

Section: Resultsmentioning

confidence: 94%

“…43 The intensities of the O−H stretching and bending vibration peaks in the CNF−Ag became weaker than those of CNF because of electrostatic interaction of hydroxyl groups with AgNPs. 44,45 Although some aldehyde groups in CNF may be oxidized to carboxyl groups by silver ammonia, the intensity and position of the carbonyl stretching peak in CNF−AgNPs did not change obviously compared to that of CNFs. AgNPs were successfully synthesized using CNFs as the sole reducer and stabilizer without additive.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Green Synthesis of Cellulose Nanofibrils Decorated with Ag Nanoparticles and Their Application in Colorimetric Detection of l-Cysteine

Guan

et al. 2020

ACS Sustainable Chem. Eng.

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In this study, we reported an environmentally benign method for the synthesis of silver nanoparticles (AgNPs) by using 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose nanofibrils (CNFs) as the only reducing agent and stabilizer under mild aqueous conditions. The AgNPs were tightly adhered to the CNF surface, and the resulting stable CNF–AgNP suspension can be used for rapid and selective detection of l-cysteine (Cys). The efficacy of the process relies upon the surface plasmon resonance properties of AgNPs and the aggregation effect of AgNPs in the presence of Cys. Under optimal ionic strength provided by NaCl, Cys interacted with AgNPs, leading to a change in yellow color of the CNF–AgNP to purple. The colloidal suspension showed high sensitivity (limit of detection of 49 nM) and rapid (5 min) and selective detection of Cys among 20 amino acids that make up human proteins, hence demonstrating great potential for analyzing practical samples.

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Section: Resultsmentioning

confidence: 94%

Section: ■ Results and Discussionmentioning

confidence: 99%

Green Synthesis of Cellulose Nanofibrils Decorated with Ag Nanoparticles and Their Application in Colorimetric Detection of l-Cysteine

Guan

et al. 2020

ACS Sustainable Chem. Eng.

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“…The electrospinning method is a uniform mixture of cellulose and CNT solution, then through the spinner in a strong electric field for atomization, solidification, and spray spinning into a fine filament with a uniform diameter and controlled structure of cellulose/CNT composite fibers. [60][61][62] The cellulose/CNT composite nanofibers with flexible and slender structures are beneficial to accelerate the transmission of electrons and improve electrical conductivity, thus enhancing electrochemical performance of cellulose/CNT composite materials. Cho et al [63] synthesized tunicate cellulose nanofibril (TCNF)/CNT fibers with good mechanical properties by an electrospinning method (Fig.…”

Section: Electrospinning Methodsmentioning

confidence: 99%

Progress in Cellulose/Carbon Nanotube Composite Flexible Electrodes for Supercapacitors

Sun¹,

Qi²,

Chen³

et al. 2021

Eng. Sci.

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Nowadays, there is an increasing demand for wearable, portable and foldable small electronic products, and humancomputer interaction interface devices. Therefore, the supercapacitors as the energy storage device were extensively studied owing to their high energy/power density, fast charge-discharge processes, and long cycle life. Wherein the flexible electrode material is the essential component to boost the performance of supercapacitors. Cellulose, as a kind of natural flexible material with low-cost, wide-sourced, renewable, and robust mechanical properties, have been used as flexible substrate or template of electrodes. To enhance conductivity and excellent electrochemical performance of the cellulose-based flexible electrode, the carbon nanotube (CNT) with high-conductivity, good thermal and chemical stability, and unique internal structure was integrated. Thereby, the cellulose/CNT-based flexible electrodes with high energy/power density and long cycle life performance of flexible supercapacitors are prepared. This review mainly focuses on cellulose/CNT, emphatically summarizing the composition, preparation, and mechanism of the cellulose/CNT-based composite flexible electrode for supercapacitors. Additionally, the current challenges and prospects of the cellulose/CNT-based composite flexible electrode are discussed.

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“…Jatoi et al carried out AgNP immobilization on TiO 2 nanoparticles using an environmentally green procedure, and combined the TiO 2 /AgNPs into a matrix of CA nanofibers ( Kim et al, 2011 ; Jatoi et al, 2019a ). The TiO 2 /AgNP nanocomposite particles were prepared by coating TiO 2 nanoparticles with polydopamine hydrochloride followed by a treatment in AgNO 3 solution.…”

Section: Cellulose-based Nanofibrils Against Bacterial Infectionsmentioning

confidence: 99%

Cellulose-Based Nanofibril Composite Materials as a New Approach to Fight Bacterial Infections

Rashki

Shakour

Yousefi

et al. 2021

Front. Bioeng. Biotechnol.

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Antibiotic resistant microorganisms have become an enormous global challenge, and are predicted to cause hundreds of millions of deaths. Therefore, the search for novel/alternative antimicrobial agents is a grand global challenge. Cellulose is an abundant biopolymer with the advantages of low cost, biodegradability, and biocompatibility. With the recent growth of nanotechnology and nanomedicine, numerous researchers have investigated nanofibril cellulose to try to develop an anti-bacterial biomaterial. However, nanofibril cellulose has no inherent antibacterial activity, and therefore cannot be used on its own. To empower cellulose with anti-bacterial properties, new efficient nanomaterials have been designed based on cellulose-based nanofibrils as potential wound dressings, food packaging, and for other antibacterial applications. In this review we summarize reports concerning the therapeutic potential of cellulose-based nanofibrils against various bacterial infections

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Dopa-based facile procedure to synthesize AgNP/cellulose nanofiber composite for antibacterial applications

Cited by 18 publications

References 55 publications

Green Synthesis of Cellulose Nanofibrils Decorated with Ag Nanoparticles and Their Application in Colorimetric Detection of l-Cysteine

Green Synthesis of Cellulose Nanofibrils Decorated with Ag Nanoparticles and Their Application in Colorimetric Detection of l-Cysteine

Progress in Cellulose/Carbon Nanotube Composite Flexible Electrodes for Supercapacitors

Cellulose-Based Nanofibril Composite Materials as a New Approach to Fight Bacterial Infections

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