Assembly of Layered Silicate Loaded Quaternized Chitosan/Reduced Graphene Oxide Composites as Efficient Absorbents for Double-Stranded DNA

Li, Xiaoyun; Han, Yang‐Su; Ling, Yunzhi; Wang, Xiaoying; Sun, Run‐Cang

doi:10.1021/acssuschemeng.5b00404

Cited by 32 publications

(13 citation statements)

References 34 publications

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“…Another application of chitosan/layered silicate composites is for as efficient absorbents for double-Stranded DNA as reported by Li et al. [30]. Chai et al.…”

Section: Introductionmentioning

confidence: 97%

Water sorption, antimicrobial activity, and thermal and mechanical properties of chitosan/clay/glycerol nanocomposite films

Kusmono

Abdurrahim

2019

Heliyon

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Chitosan-based nanocomposites films with different clay loadings (0, 5, 10, 15 wt %), with (10, 20, 30 wt%) and without glycerol as plasticizer, were prepared by solution casting. The effects of the addition of clay and glycerol on the thermal, mechanical, water absorption, and antimicrobial activity properties of chitosan/clay nanocomposites films were investigated in this study. XRD results indicated that the intercalated structure was obtained in the chitosan/clay nanocomposites with and without glycerol. The thermal stability of the chitosan was significantly enhanced by the presence of clay and glycerol. It was found that the addition of clay into the chitosan improved significantly the tensile strength and tensile modulus. The highest values in strength and stiffness were achieved for the chitosal/clay nanocomposites with 5 wt% of clay and 20 wt% of glycerol. The addition of both clay and glycerol reduced drastically the ductility of chitosan. The best water resistance was obtained for the chitosan film containing 5 wt% of clay and 20 wt% of glycerol. The chitosan/clay nanocomposite film had potential for application of alternative food packing materials.

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“…Another application of chitosan/layered silicate composites is for as efficient absorbents for double-Stranded DNA as reported by Li et al. [30]. Chai et al.…”

Section: Introductionmentioning

confidence: 97%

Water sorption, antimicrobial activity, and thermal and mechanical properties of chitosan/clay/glycerol nanocomposite films

Kusmono

Abdurrahim

2019

Heliyon

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“…In addition, the interlayer distance of REC in the composite NFs enlarged with the increased REC amount. Layered REC with exchangeable hydrated cations could be intercalated with PLLA chains, resulting in a larger interlayer distance . The intercalated structure implied the internally compact structure, which could facilitate controlled loading and release of drugs.…”

Section: Resultsmentioning

confidence: 99%

Incorporation of Layered Rectorite into Biocompatible Core–Sheath Nanofibrous Mats for Sustained Drug Delivery

Dai

Cheng

et al. 2021

ACS Biomater. Sci. Eng.

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Searching for drug carries with controlled release and good biocompatibility has always been one of the research hotspots and difficulties. Herein, core−sheath nanofibrous mats (NFs) consisting of biocompatible poly(ethylene oxide) (PEO, core) and poly(L-lactic acid) (PLLA, sheath) for drug delivery were fabricated via coaxial electrospinning strategy. The nontoxic layered silicate rectorite (REC) with 0.5−1 wt % amount was introduced in the sheath for sustained drug delivery. Layered REC could be intercalated with PLLA macromolecule chains, leading to the densified structure for loading and keeping doxorubicin hydrochloride (DOX) while reversibly capturing and releasing DOX to delay the drug migration due to its high cation activity. The addition of REC in NFs could delay the initial burst release of DOX and prolong the residence time from 12 to 96 h. Moreover, DOX-loaded core−sheath NFs had in vitro culture with strong antitumor activity, which was confirmed by cytotoxicity results and live and dead assay. HepG 2 tumor-bearing xenograft further demonstrated the tumor-suppression effect and the excellent safety of the DOX-loaded core−sheath NFs in vivo. The constructed NFs as drug carriers showed great potential in the local treatment of solid tumors.

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“…XRD technique was used to characterise the basal spacing of MMT in polymer/MMT hybrids, verifying the morphology of the nanocomposites [16,17]. Figure 1 displays the XRD patterns of OMMT, QCS and QOMA.…”

Section: Structure and Morphology Of Qomamentioning

confidence: 92%

Green antimicrobial coating based on quaternised chitosan/organic montmorillonite/Ag NPs nanocomposites

Chen

Cai³

et al. 2016

Journal of Experimental Nanoscience

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This work is aimed at developing a green antimicrobial coating. First, a green antimicrobial agent, quaternised chitosan (QCS)/organic montmorillonite (OMMT)/silver nanoparticles (Ag NPs) (QOMA) nanocomposite was fabricated through an environmental-friendly one-step approach. Morphological and structural characteristics of QOMA were investigated, and good antimicrobial activity was proved. QOMA was then incorporated into powder coating formulations to form a homogeneous coating on steel plates, which was studied by scanning electron images. Besides, the physical and mechanical properties as well as the antimicrobial performances of the coatings were discussed. The results showed that the addition of QOMA imparted good antimicrobial capacity to the powder coating, but did not affect its physical and mechanical properties. The coatings were able to effectively inactivate Gram-negative bacteria (Escherichia coli), Gram-positive bacteria (Staphylococcus aureus) and fungi (Aspergillus niger, Penicillium funiculosum, Chaetomium globasum, Paecilomyces varioti, Asp. terreus and Aureobasidium pullulans). Our findings demonstrate the possibilities of green antimicrobial coating containing QOMA for practical applications in medical devices, domestic appliances and other solid surfaces concerning bacterial infection and contamination.

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Assembly of Layered Silicate Loaded Quaternized Chitosan/Reduced Graphene Oxide Composites as Efficient Absorbents for Double-Stranded DNA

Cited by 32 publications

References 34 publications

Water sorption, antimicrobial activity, and thermal and mechanical properties of chitosan/clay/glycerol nanocomposite films

Water sorption, antimicrobial activity, and thermal and mechanical properties of chitosan/clay/glycerol nanocomposite films

Incorporation of Layered Rectorite into Biocompatible Core–Sheath Nanofibrous Mats for Sustained Drug Delivery

Green antimicrobial coating based on quaternised chitosan/organic montmorillonite/Ag NPs nanocomposites

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