Amino Functionalization of Reduced Graphene Oxide/Tungsten Disulfide Hybrids and Their Bismaleimide Composites with Enhanced Mechanical Properties

Guo, Liulong; Yan, Hongxia; Chen, Zhengyan; Liu, Qi; Feng, Yuanbo; Ding, Fan; Nie, Yufeng

doi:10.3390/polym10111199

Cited by 20 publications

(10 citation statements)

References 40 publications

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“…Interestingly, some oxygen groups on the rGO surface may be chemically functionalized for the preparation of composite materials. For instance, the functionalization of rGO with primary amines (-NH 2 ) renders it hydrophilic and increases its interfacial binding to materials of interest, thus making it more adaptable as a sensing platform for the detection of dengue virus [34][35][36]. Likewise, combining globular-shaped dendrimer of polyamidoamine (PAMAM) with rGO provides great opportunities to enhance the sensitivity of detection.…”

Section: Introductionmentioning

confidence: 99%

Quantitative and Selective Surface Plasmon Resonance Response Based on a Reduced Graphene Oxide–Polyamidoamine Nanocomposite for Detection of Dengue Virus E-Proteins

et al. 2020

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Dengue viral infection is one of the most common deadliest diseases and has become a recurrent issue for public health in tropical countries. Although the spectrum of clinical diagnosis and treatment have recently been established, the efficient and rapid detection of dengue virus (DENV) during viremia and the early febrile phase is still a great challenge. In this study, a dithiobis (succinimidyl undecanoate, DSU)/amine-functionalized reduced graphene oxide-–polyamidoamine dendrimer (DSU/amine-functionalized rGO–PAMAM) thin film-based surface plasmon resonance (SPR) sensor was developed for the detection of DENV 2 E-proteins. Different concentrations of DENV 2 E-proteins were successfully tested by the developed SPR sensor-based system. The performance of the developed sensor showed increased shift in the SPR angle, narrow full-width–half-maximum of the SPR curve, high detection accuracy, excellent figure of merit and signal-to-noise ratio, good sensitivity values in the range of 0.08–0.5 pM (S = 0.2576°/pM, R2 = 0.92), and a high equilibrium association constant (KA) of 7.6452 TM−1. The developed sensor also showed a sensitive and selective response towards DENV 2 E-proteins compared to DENV 1 E-proteins and ZIKV (Zika virus) E-proteins. Overall, it was concluded that the Au/DSU/amine-functionalized rGO–PAMAM thin film-based SPR sensor has potential to serve as a rapid clinical diagnostic tool for DENV infection.

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Section: Introductionmentioning

confidence: 99%

Quantitative and Selective Surface Plasmon Resonance Response Based on a Reduced Graphene Oxide–Polyamidoamine Nanocomposite for Detection of Dengue Virus E-Proteins

et al. 2020

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“…When the material receives impact, the cross-linked network structure will tend to help the resin matrix to bear the external force and conduct the force to the GO through the molecular chain, so as to achieve the purpose of toughening the resin matrix [ 38 , 39 ]. Recently, there has been more focus on incorporation of GO into BMI networks [ 40 , 41 , 42 , 43 , 44 , 45 ]. However, scarce literature focused on improving toughness while improving thermomechanical properties has been reported.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Thermal and Mechanical Properties of Bismaleimide Using a Graphene Oxide Modified by Epoxy Silane

Jiang

Ji²,

Gan

et al. 2020

Materials

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A thermosetting resin system, based on bismaleimide (BMI), has been developed via copolymerization of 4,4′-diaminodiphenylsulfone with a newly synthesized graphene oxide modified using epoxy silane (ES-GO). The effect of ES-GO on the thermomechanical and mechanical properties of cured modified resin was studied. To evaluate the efficiency of the modified BMI systems, the composite samples using glass fiber cloth were molded and tested. Thermogravimetric analysis indicates that the cured sample systems displays a high char yield at lower concentrations of ES-GO (≤0.5 wt.%), suggesting an improved thermal stability. Using dynamic mechanical analysis, a marked increase in glass transition temperature (Tg) with increasing ES-GO content was observed. Analysis of mechanical properties reveals a possible effect of ES-GO as a toughener. The results also showed that the addition of 0.3 wt.% ES-GO maximizes the toughness of the modified resin systems, which was further confirmed by the result of analysis of fracture surfaces. At the same time, a molded composite with ES-GO showed improved mechanical properties and retention rate at 150 °C as compared to that made with neat resin.

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“….33 In Figure 2d, the W XPS spectrum shows peaks at 32.4, 34.5, and 37.5 eV, which are attributed to W 4f 7/2 , W 4f 5/2 , and W 5p 3/2 , respectively. 34 Permeability and Separation Performance of MoS 2 and WS 2 Membranes. Water Permeation of MoS 2 and WS 2 Membranes.…”

mentioning

confidence: 99%

Transition Metal Dichalcogenide (TMD) Membranes with Ultrasmall Nanosheets for Ultrafast Molecule Separation

Liú

Yang

et al. 2020

ACS Appl. Mater. Interfaces

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transition metal dichalcogenide membranes have entered the spotlight for nanofiltration application owing to the novel mass transport properties in nanochannels. However, further improving the water permeability with high molecular separation rate simultaneously is challenging. In this work, to achieve ultrafast molecule separation, MoS 2 and WS 2 nanosheets with ultrasmall lateral size (<100 nm) are fabricated by sucrose-assisted mechanochemical exfoliation. Ultrasmall nanosheets in the membranes cut down average length of water-transporting paths and create more nanochannels and nanocapillaries for water molecules to pass through membranes. The water flux of these kinds of MoS 2 and WS 2 membranes are significantly enhanced to 918 and 828 L/m 2 h bar, respectively, which is four and two times higher than those of previously reported MoS 2 and WS 2 membranes with larger lateral size nanosheets. In addition, MoS 2 and WS 2 membranes display excellent rejection performance for rhodamine B and Evans blue with a high rejection rate (∼99%). This study provides a promising method to improve the performance of 2D laminar membranes for nanofiltration application by using ultrasmall 2D nanosheets.

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Amino Functionalization of Reduced Graphene Oxide/Tungsten Disulfide Hybrids and Their Bismaleimide Composites with Enhanced Mechanical Properties

Cited by 20 publications

References 40 publications

Quantitative and Selective Surface Plasmon Resonance Response Based on a Reduced Graphene Oxide–Polyamidoamine Nanocomposite for Detection of Dengue Virus E-Proteins

Quantitative and Selective Surface Plasmon Resonance Response Based on a Reduced Graphene Oxide–Polyamidoamine Nanocomposite for Detection of Dengue Virus E-Proteins

Enhancement of Thermal and Mechanical Properties of Bismaleimide Using a Graphene Oxide Modified by Epoxy Silane

Transition Metal Dichalcogenide (TMD) Membranes with Ultrasmall Nanosheets for Ultrafast Molecule Separation

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