Surface modification of carbon nanotubes by combination of mussel inspired chemistry and SET-LRP

Wan, Qing; Liu, Meiying; Tian, Jianwen; Deng, Fengjie; Zeng, Guangjian; Li, Zhen; Wang, Ke; Zhang, Qingsong; Zhang, Xiaoyong; Wei, Yen

doi:10.1039/c4py01565g

Cited by 86 publications

(51 citation statements)

References 63 publications

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“…Also, bare SWCNTs are hydrophobic and require surface modification to prevent aggregation into bundles 4 that are deleterious to cells. 13,14 Recently, our group 9,15,16 and many others [17][18][19][20][21][22][23][24][25][26] have developed biologically relevant SWCNT dispersions using noncovalently linked block copolymers such as Pluronic s F-127 (PF127), biomolecules such as DNA and proteins, including bovine serum albumin (BSA), g-globulin, etc., and combinations such as polymers grafted onto polydopamine. 1,2 However, covalent alterations destroy the desirable thermal, electrical, mechanical and optical properties of individualized SWCNTs.…”

Section: Introductionmentioning

confidence: 99%

Differential sub-cellular processing of single-wall carbon nanotubes via interfacial modifications

2015

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Strategies for cell-specific targeting and delivery of carbon nanotubes have made significant advancements over recent years. However, control of sub-cellular localization, an important criterion for many biomedical applications, remains largely unexplored. In this work, we experimentally demonstrate how different molecules that are used to non-covalently suspend hydrophobic SWCNTs in aqueous conditions also influence cellular processing and localization. We utilized complementary imaging modalities to show that SWCNTs dispersed using the membrane active tri-block copolymer Pluronic s F-127 (PF127) were endocytosed into cells by the millions but eventually escaped endosomes and altered F-actin structures. In contrast, SWCNTs dispersed with the protein bovine serum albumin (BSA) were endocytosed into cells at similarly high levels but remained in the endosomal pathway, ultimately co-registering with endoplasmic reticulum and vesicles. Interestingly, cellular exposure to SWCNTs-BSA in the presence of the endosome disrupter, chloroquine, led to altered F-actin structures that were similar to the alterations induced by cellular exposure to SWCNTs-PF127. These results suggest that PF127 facilitated endosome escape and that SWCNTs might have an energetically favorable interaction with stiff, filamentous structures inside the cell. Thus, our results provide a design principle for non-covalent surface modifications of SWCNTs that do not degrade the desirable, intrinsic SWCNT properties but provide differential trafficking to intracellular compartments for sub-cellular biomedical applications.

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Section: Introductionmentioning

confidence: 99%

Differential sub-cellular processing of single-wall carbon nanotubes via interfacial modifications

2015

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“…Han et al [27] have developed an adhesive and transferable free-standing film with dual function of osteoinductivity and antibacterial activity, which is obtained by sequentially assembling vancomycin immobilized oxidized sodium alginate and dexamethasone encapsulated chitosan-coated BSA nanoparticles on a poly-dopamine layer. Our previous reports also have demonstrated that surface modification of different materials via mussel-inspired chemistry and Michael addition reaction [28][29][30][31][32][33][34][35][36][37][38][39][40][41].…”

Section: Introductionmentioning

confidence: 93%

Enhanced removal capability of kaolin toward methylene blue by mussel-inspired functionalization

et al. 2016

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Adsorption is an effective and commonly adopted method for removal of organic pollutants from environment. In this work, we described the synthesis and the adsorption behavior of poly(sodium p-styrenesulfonate hydrate) (PSPSH)-modified kaolin, which was obtained by combination of mussel-inspired chemistry and Michael addition reaction. The amino-terminated PSPSH was synthesized by free radical polymerization using cysteamine hydrochloride as the chain transfer agent and sodium p-styrenesulfonate hydrate as the monomer. Raw kaolin and PSPSH-modified kaolin were characterized using several techniques including transmission electron microscopy, Fourier transform infrared spectroscopy, thermal gravimetric analysis, and X-ray photoelectron spectroscopy in detail. The adsorption of methylene blue onto modified kaolin from aqueous solution was investigated, in which the effects of contact time, temperature, solution pH, and initial methylene blue concentration were studied. The experiment data were analyzed using two common adsorption models: Langmuir and Freundlich isotherm models. The kinetic adsorption data were analyzed using pseudo-first-order, pseudo-second-order, and intraparticle diffusion model. The values of thermodynamics constants such as entropy change (DS 0 ), enthalpy change (DH 0 ) and Gibbs free energy (DG 0 ) were also determined. The modified kaolin showed favorable dispersibility and convenient separation, high efficiency, and good regeneration capability in the removal of methylene blue from solution.Qiang Huang and Meiying Liu have contributed equally to this work.

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“…It has been demonstrated that DA can be self-polymerized under alkaline solution to form polydopamine (PDA) films, which can be adhered to almost any solid surface without surface pretreatment [46][47][48][49][50][51][52][53][54][55]. For example, the surface modification of silica capillary with NH 2 -PEG was demonstrated by Wang et al Results showed that the novel coating could provide effective suppression of EOF and minimized adsorption of proteins.…”

Section: Introductionmentioning

confidence: 94%

A bioinspired strategy for surface modification of silica nanoparticles

Tian

Zhang

Liu

et al. 2015

Applied Surface Science

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Surface modification of carbon nanotubes by combination of mussel inspired chemistry and SET-LRP

Abstract: Surface modification of carbon nanotubes by the combination of mussel inspired chemistry and SET-LRP has been reported for the first time.

Cited by 86 publications

References 63 publications

Differential sub-cellular processing of single-wall carbon nanotubes via interfacial modifications

Differential sub-cellular processing of single-wall carbon nanotubes via interfacial modifications

Enhanced removal capability of kaolin toward methylene blue by mussel-inspired functionalization

A bioinspired strategy for surface modification of silica nanoparticles

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