Three-dimensional superhydrophobic copper 7,7,8,8-tetracyanoquinodimethane biointerfaces with the capability of high adhesion of osteoblasts

Zhou, Jie; Fan, Jun‐Bing; Nie, Qiong; Wang, Shutao

doi:10.1039/c5nr08305b

Cited by 22 publications

(11 citation statements)

References 31 publications

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“…Indeed, nanostructured CuTCNQ and CuTCNQF 4 on rigid substrates have also been shown to be superhydrophobic, and could, in principle, be used in contaminant‐ and humidity‐tolerant electronic devices. Recently, a 3 D CuTCNQ nanowire array was shown to be superhydrophobic with the added capability of allowing for high adhesion of osteoblasts to the surface . However, these materials have not been utilized for oil/water separation.…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic Fabrics for Oil/Water Separation Based on the Metal–Organic Charge‐Transfer Complex CuTCNAQ

et al. 2016

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The fabrication of a superhydrophobic nylon textile based on the organic charge‐transfer complex CuTCNAQ (TCNAQ=11,11,12,12‐tetracyanoanthraquinodimethane) is reported. The nylon fabric, which is metallized with copper, undergoes a spontaneous chemical reaction with TCNAQ dissolved in acetonitrile to form nanorods of CuTCNAQ that are intertwined over the entire surface of the fabric. This creates the necessary micro‐ and nanoscale roughness that often allows the Cassie–Baxter state to be obtained with high robustness, thereby achieving a superhydrophobic/superoleophilic surface without the need for a fluorinated surface. The material is characterized with SEM, FTIR spectroscopy, and X‐ray photoelectron spectroscopy, and investigated for its ability to separate oil and water in two modes, namely through filtration and as an absorbent material. It is found that the fabric can separate dichloromethane, olive oil, and crude oil from water, and reduce the water content of the oil during the separation process. The fabric is reusable, highly durable, and tolerant to conditions such as seawater, hydrochloric acid, and extensive time periods on the shelf. Given that CuTCNAQ is a copper‐based semiconductor, there may also be the possibility of other uses in areas such as photocatalysis and antibacterial applications.

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Section: Introductionmentioning

confidence: 99%

Superhydrophobic Fabrics for Oil/Water Separation Based on the Metal–Organic Charge‐Transfer Complex CuTCNAQ

et al. 2016

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“…For example, Zhou et al reported the high adhesion of osteoblasts on a superhydrophobic platform ( Figure 4a). [159] Via chemical vapor deposition, the nanowire arrays of copper 7,7,8,8-tetracyanoquinodimethane (CuTCNQ) were formed on indium tin oxide (ITO). The uniform CuTCNQ nanowires exhibited the hydrophobic property, and the surface was superhydrophobic when the length increased to 7.9 ± 0.04 µm.…”

Section: Cell Adhesion On Superhydrophobic Surfacementioning

confidence: 99%

Section: Cell Adhesion On Gradient Surfacementioning

confidence: 99%

Superwettable Surface Engineering in Controlling Cell Adhesion for Emerging Bioapplications

et al. 2020

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The dynamic liquid environment of live cells makes it necessary to consider the surface wettability when designing biomaterials and related devices. Especially superwettability, as the extreme state of wettability, has become a unique platform for regulating cell behaviors elaborately including adhesion, spreading, proliferation, differentiation, and apoptosis, which elicits the promising applications on biomedicine and advanced biodevices. In this review, the controlling cell adhesion on superwettable engineering surfaces is summarized. Next, the related bioapplications utilizing the surface superwettability are recapitulated, including reversible surface wettability for cell capture/adhesion, superwettability-based patterns for cell arrays/aggregations construction, superwettability for antiplatelet adhesion, and superwettable surfaces as antimicrobial materials. Several design concepts are concluded on the emerging bioapplications of superwettable surface. Although so many efforts have been made for revealing the mechanism of cell functions on the superwettable surface, the complexity and variability between superwettable surface and liquid environment in physiological activities of organisms still requires impeccable theories, and the remaining unclear mechanisms of superwettability for biological systems are also discussed. As an outlook, the surface superwettability is just beginning to demonstrate its great potential in biology, offering great opportunities in tissue engineering, implantable devices, biosensors, drug-screening, and cancer diagnostics.

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“…Charge‐transfer complexes based on TCNQ have also received significant attention, in particular in the areas of field emission and molecular electronics . Recently, our group and others have looked into extending the capability of charge‐transfer‐complex materials into more diverse applications including heterogeneous catalysis, photocatalysis, gas sensing, heavy‐metal‐ion removal, humidity sensing, iodine storage, superhydrophobic surfaces, oil–water separation, and antibacterial fabrics …”

Section: Figurementioning

confidence: 99%

“…[4] Recently, our group and others have looked into extending the capability of charge-transfer-complex materials into more diverse applications including heterogeneous catalysis, [5] photocatalysis, [6] gas sensing, [7] heavy-metal-ion removal, [6a, b] humidity sensing, [8] iodine storage, [9] superhydrophobic surfaces, [10] oil-water separation, [11] and antibacterial fabrics. [12] An interesting development from these studies, however, has emerged, whereby from a catalytic viewpoint the fluorinated analogue of TCNQ, namely, 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (TCNQF 4 ), was reported to be significantly more active than the non-fluorinated version.…”

mentioning

confidence: 99%

Tetrathiafulvalene–7,7,8,8‐Tetracyanoquinodimethane and Tetrathiafulvalene–2,3,5,6‐Tetrafluoro‐7,7,8,8‐tetracyanoquinodimethane Organic Charge‐Transfer Complexes: Reusable Catalysts for Electron‐Transfer Reactions

Hoshyargar

O’Mullane

2016

ChemCatChem

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The application of organic charge‐transfer complexes such as TTF‐TCNQ (TTF=tetrathiafulvalene, TCNQ=7,7,8,8‐tetracyanoquinodimethane) is well known in the area of organic electronics. However, the applicability of this material and its derivatives has not been explored for catalytic reactions. Herein, we report on the catalytic properties of both TTF‐TCNQ and the significantly less‐known fluorinated analogue TTF‐TCNQF4 (TCNQF4=2,3,5,6‐tetrafluoro‐7,7,8,8‐tetracyanoquinodimethane). The model reaction of ferricyanide ion reduction by thiosulfate ions was chosen, for which it was found that both materials were indeed catalytically active. Significantly, the fluorinated TCNQF4 analogue showed considerably higher catalytic activity than TTF‐TCNQ. In addition, TTF‐TCNQF4 was found to be highly stable under the catalytic conditions and could be recovered and reused without any loss in performance for at least 10 catalytic cycles. This work opens up new avenues for investigating these types of materials for catalytic reactions.

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Three-dimensional superhydrophobic copper 7,7,8,8-tetracyanoquinodimethane biointerfaces with the capability of high adhesion of osteoblasts

Cited by 22 publications

References 31 publications

Superhydrophobic Fabrics for Oil/Water Separation Based on the Metal–Organic Charge‐Transfer Complex CuTCNAQ

Superhydrophobic Fabrics for Oil/Water Separation Based on the Metal–Organic Charge‐Transfer Complex CuTCNAQ

Superwettable Surface Engineering in Controlling Cell Adhesion for Emerging Bioapplications

Tetrathiafulvalene–7,7,8,8‐Tetracyanoquinodimethane and Tetrathiafulvalene–2,3,5,6‐Tetrafluoro‐7,7,8,8‐tetracyanoquinodimethane Organic Charge‐Transfer Complexes: Reusable Catalysts for Electron‐Transfer Reactions

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