Graphene-DNA hybrids: self-assembly and electrochemical detection performance

Lv, Wei; Guo, Min; Liang, Minghui; Jin, Fengmin; Cui, Lan; Zhi, Linjie; Yang, Quan‐Hong

doi:10.1039/c0jm01066a

Cited by 114 publications

(50 citation statements)

References 29 publications

(19 reference statements)

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“…[ 16 , 17 , 22 ] Since there are many differences between the CCG composites with classical insulating polymers and conducting polymers, these two types of composites will be discussed separately. Hitherto, the insulating polymers which have been incorporated into CCGs or graphene oxide to form composites mainly are: poly(ethylene oxide) (PEO), [ 52 , 55 ] poly(vinyl alcohol) (PVA), [75][76][77][78][79][80][81][82][83][84][85][86] poly(diallyldimethylammoniumchloride) (PDDA), [ 87 ] poly(sodium 4-styrensulfonate) (PSSNa), [ 88 ] poly(acrylic acid) (PAA), [ 89 , 90 ] poly(2-N,N-(dimethyl amino ethyl acrylate) (PDMAEA), [ 90 ] chitosan, [ 67 , 91-94 ] Nafi on, [95][96][97][98] poly(Nisopropylacrylamide) (PNIPAAm), [ 99 ] DNA, [100][101][102] poly(vinyl acetate) (PVAc) [ 58 , 103 , 104 ] and its copolymer, [ 105 ] polyfurfuryl alcohol (PFA), [ 54 ] poly(acrylamide) (PAM), [ 106 , 107 ] polystyrene (PS) [ 37 , 80 , 108-116 ] and its copolymers, [117][118][119] poly(arylene disulfi de) (PAS), [ 120 ] poly(methy methacrylate) (PMMA), [ 76 , 82 , 121-123 ] poly(acrylic ester) (PAE), [ 124 ] silicone foam, [ 125 , 126 ] poly(vinylidene fl uoride) (PVDF), [ 127 ] polycarbonate (PC), [ 114 , 128 ] acrylonitrilebutadiene-styrene (ABS), <...>…”

Section: Composites With Insulating Polymersmentioning

confidence: 99%

Functional Composite Materials Based on Chemically Converted Graphene

2011

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Graphene, a one-atom layer of graphite, possesses a unique two-dimensional structure and excellent mechanical, thermal, and electrical properties. Thus, it has been regarded as an important component for making various functional composite materials. Graphene can be prepared through physical, chemical and electrochemical approaches. Among them, chemical methods were tested to be effective for producing chemically converted graphene (CCG) from various precursors (such as graphite, carbon nanotubes, and polymers) in large scale and at low costs. Therefore, CCG is more suitable for synthesizing high-performance graphene based composites. In this progress report, we review the recent advancements in the studies of the composites of CCG and small molecules, polymers, inorganic nanoparticles or other carbon nanomaterials. The methodology for preparing CCG and its composites has been summarized. The applications of CCG-based functional composite materials are also discussed.

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Section: Composites With Insulating Polymersmentioning

confidence: 99%

Functional Composite Materials Based on Chemically Converted Graphene

2011

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“…To date, great efforts have been made to incorporate GN into composite materials and explore their applications in various fields, including quantum dots [13,14], metal nanoparticles [15][16][17][18], metal oxides [19][20][21][22], carbon nanotubes [23,24], and conducting polymers [25][26][27][28]. It is noteworthy that bionanocomposites resulting from the assembly of GN with biopolymers such as polysaccharides [29], peptides [30], proteins [31], and nucleic acids [32] can also play a crucial role in achieving controllable properties and desirable multifunctionalities.…”

Section: Introductionmentioning

confidence: 99%

One-step electrochemical approach to the synthesis of Graphene/MnO2 nanowall hybrids

et al. 2011

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We have demonstrated a one-step and effective electrochemical method to synthesize graphene/MnO 2 nanowall hybrids (GMHs). Graphene oxide (GO) was electrochemically reduced to graphene (GN), accompanied by the simultaneous formation of MnO 2 with a nanowall morphology via cathodic electrochemical deposition. The morphology and structure of the GMHs were systematically characterized by scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and Raman spectroscopy. The resulting GMHs combine the advantages of GN and the nanowall array morphology of MnO2 in providing a conductive network of amorphous nanocomposite, which shows good electrochemical capacitive behavior. This simple approach should find practical applications in the large-scale production of GMHs.

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“…However, the poor biocompatibility of graphene limits their further application in designing biosensors because graphene is hydrophobic and tends to form agglomerates in water (Shan et al, 2009a). Therefore, covalent or noncovalent functionalization methods, such as using polymers or DNA as the functionalization agent, have been made to improve the biocompatibility of graphene (Stankovich et al, 2006;Lv et al, 2010). Among them, the positive poly (diallyldimethylammonium chloride) (PDDA) functionalized graphene (PDDA-G) reported in our previous work (Liu et al, 2010) exhibited good conductivity, solubility and biocompatibility and thus can be modified by the negative gold nanoparticles (AuNPs) for the formation of AuNPs/PDDA-G hybrid architecture.…”

Section: Introductionmentioning

confidence: 99%