Preparation of fluorescent and antibacterial nanocomposite films based on cellulose nanocrystals/ZnS quantum dots/polyvinyl alcohol

Xie, Wei-Qi; Yu, Kong-Xian; Gong, Yi-Xian

doi:10.1007/s10570-019-02245-y

Cited by 31 publications

(20 citation statements)

References 46 publications

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“…The peak at binding energy 1021.08 eV and 168.93 eV corresponds to the Zn 2p and S 2p in the sulfide phase respectively, corroborating the existence of ZnS (Fig. 2 c) [22] . The constituent elements C and O for the lignocellulose component of the nanocomposite were confirmed with the presence of photoelectron peaks at binding energy 540.5 and 293.5 eV corresponding to O 1s and C 1s respectively (Fig.…”

Section: Resultsmentioning

confidence: 59%

“…The crosslinking between the -OH group of lignocellulose and ZnS through hydrogen bonding, is evident from the shifting of the characteristic band for the inter and intramolecular -OH stretching vibration (3401 cm -1 ) for the Cu:ZnS nanocomposite to 3428 cm -1 in Fig. 1 b [22] . The band observed at 1450 cm -1 corresponds to the aromatic skeletal vibration of the phenolic group of lignin [23, 24] .…”

Section: Resultsmentioning

confidence: 99%

“…The photoelectron peak at binding energy 934.24 eV and 954.20 eV of Cu spectra indicates the formation of Cu 2+ oxidation state. However, the additional peak around 940 eV and 960 eV results from a shakeup process owing to the open 3d 9 shell of Cu 2+ [22]. The elemental spectra for Zn show peaks at 1021.43 and 1044.65 eV corresponding to Zn 2p 3/2 and Zn 2p ½ belonging to the Zn 2+ oxidation state (Fig.…”

Section: Resultsmentioning

confidence: 99%

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Facile synthesis of crosslinked Cu:ZnS-lignocellulose nanocomposite: a potent antifungal and antisporulant system against the tea pathogen Exobasidium vexans

Chaliha

Baruah

Kalita

2021

Preprint

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The objective of the present study was to synthesize Cu doped ZnS nanocore crosslinked with lignocellulose (represented as Cu:ZnS-lignocellulose nanocomposite) for antifungal action against the devastating tea blister blight pathogen Exobasidium vexans. The characteristic features of the nanocomposite were analyzed via different physicochemical techniques like FTIR, XRD, XPS, SEM, SEM-EDX, Elemental mapping, PCS, and UV-PL studies. The FTIR and XPS investigations revealed the crosslinking between lignocellulose and the Cu:ZnS. The presence of lignocellulose was seen to attribute a potent antifungal efficacy, also enhancing the stability of the resulting nanocomposite in aqueous suspensions. The antifungal efficacy confirmed through disk diffusion and broth dilution assays have a maximum zone of inhibition of 1.75 cm2 and a MIC50 of 0.05 mg/ml against E. vexans. Additionally, the antisporulant activity was evident as the basidiospores failed to germinate in presence of the Cu:ZnS-lignocellulose nanocomposites. This shows potential for stemming the rapid infectivity of E. vexans by achieving disease inhibition at the early stage. Finally, the comparison with two commonly used commercial fungicides (copper oxychloride and fluconazole) demonstrated >10-fold higher antifungal activity for Cu:ZnS-lignocellulose nanocomposites.

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Section: Resultsmentioning

confidence: 59%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Facile synthesis of crosslinked Cu:ZnS-lignocellulose nanocomposite: a potent antifungal and antisporulant system against the tea pathogen Exobasidium vexans

Chaliha

Baruah

Kalita

2021

Preprint

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“…They found that chitosan-carbon dots films exhibited excellent properties such as UV-visible blocking, thermal stability and mechanical strength. According to a recent study, CNCs decorated covalently with ZnS quantum dots were embedded in PVA matrix to prepare nanocomposite films with antibacterial properties and bright blue fluorescence under the ultraviolet light (Xie et al, 2019). Recently, carbodiimide coupling was used to link CNCs and QDs to fabricate hybrid nanoparticles which can be employed in biological tracking and fluorescent material applications (Abitbol et al, 2017).…”

Section: Combination Of Nanocellulose and Carbon Dotsmentioning

confidence: 99%

Current State of Applications of Nanocellulose in Flexible Energy and Electronic Devices

et al. 2020

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Novel and unique applications of nanocellulose are largely driven by the functional attributes governed by its structural and physicochemical features including excellent mechanical properties and biocompatibility. In recent years, thousands of groundbreaking works have helped in the development of targeted functional nanocellulose for conductive, optical, luminescent materials, and other applications. The growing demand for sustainable and renewable materials has led to the rapid development of greener methods for the design and fabrication of high-performance green nanomaterials with multiple features, and consequently new challenges and opportunities. The present review article discusses historical developments, various fabrication and functionalization methods, the current stage, and the prospects of flexible energy and hybrid electronics based on nanocellulose.

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“…Based on FTIR results, hydroxyl groups of NCC had a major role in bond formation with ZnS. [ 31 ] CMC has been used as a modifier in sodium alginate/sodium CMC film having Lactococcus lactis Gram‐positive bacteria. This film showed a bacteriostatic effect on S. aureus at low temperature.…”

Section: Carboxymethyl Cellulosementioning

confidence: 99%

Antimicrobial and Wound Treatment Aspects of Micro‐ and Nanoformulations of Carboxymethyl, Dialdehyde, and TEMPO‐Oxidized Derivatives of Cellulose: Recent Advances

Alavi

Nokhodchi

2020

Macromolecular Bioscience

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The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/mabi.201900362.The remedy for infected chronic wounds such as diabetic foot ulcers is more complicated particularly in the case of patients with an inefficient immune system. Also, fighting against microbial infections in the wound site by available antibiotics may not be effective because of emerging antibiotic resistance properties among pathogenic bacteria and fungi. Recently, applications of micro-and nanoformulations of biomaterials have demonstrated improved therapeutic abilities for wound dressings. In this way, carboxymethyl, dialdehyde, and 2,2,6,6-tetramethylpiperidine-1-oxyl-oxidized celluloses are common biomaterials having outstanding physicochemical and therapeutic properties compared to unmodified cellulose. Therefore, in this review, recent progress in the field of wound healing and antimicrobial activities of these derivatives are presented and discussed.

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Preparation of fluorescent and antibacterial nanocomposite films based on cellulose nanocrystals/ZnS quantum dots/polyvinyl alcohol

Cited by 31 publications

References 46 publications

Facile synthesis of crosslinked Cu:ZnS-lignocellulose nanocomposite: a potent antifungal and antisporulant system against the tea pathogen Exobasidium vexans

Facile synthesis of crosslinked Cu:ZnS-lignocellulose nanocomposite: a potent antifungal and antisporulant system against the tea pathogen Exobasidium vexans

Current State of Applications of Nanocellulose in Flexible Energy and Electronic Devices

Antimicrobial and Wound Treatment Aspects of Micro‐ and Nanoformulations of Carboxymethyl, Dialdehyde, and TEMPO‐Oxidized Derivatives of Cellulose: Recent Advances

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