Chirality-Discriminated Conductivity of Metal–Amino Acid Biocoordination Polymer Nanowires

Zheng, Jianzhong; Wu, Yijin; Deng, Ke; He, Meng; He, Liangcan; Cao, Jing; Zhang, Xugang; Liu, Yaling; Li, Shunxing; Tang, Zhiyong

doi:10.1021/acsnano.6b03833

Cited by 38 publications

(28 citation statements)

References 35 publications

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“…The conductivity of L1, L2, L3 and L4 were established from two and four point probe I–V measurements and the calculations 52 were carried out by where σ denotes the conductivity in S/cm and ρ is known as static resistivity obtained from Here, ‘R’ represents electrical resistance of a specimen in Ω, ‘A’ is the cross-sectional area of the specimen in m 2 and ‘l’ is the length of material in meter.…”

Section: Resultsmentioning

confidence: 99%

An Affordable Wet Chemical Route to Grow Conducting Hybrid Graphite-Diamond Nanowires: Demonstration by A Single Nanowire Device

Shellaiah

Chen

Simon

et al. 2017

Sci Rep

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We report an affordable wet chemical route for the reproducible hybrid graphite-diamond nanowires (G-DNWs) growth from cysteamine functionalized diamond nanoparticles (ND-Cys) via pH induced self-assembly, which has been visualized through SEM and TEM images. Interestingly, the mechanistic aspects behind that self-assembly directed G-DNWs formation was discussed in details. Notably, above self-assembly was validated by AFM and TEM data. Further interrogations by XRD and Raman data were revealed the possible graphite sheath wrapping over DNWs. Moreover, the HR-TEM studies also verified the coexistence of less perfect sp2 graphite layer wrapped over the sp3 diamond carbon and the impurity channels as well. Very importantly, conductivity of hybrid G-DNWs was verified via fabrication of a single G-DNW. Wherein, the better conductivity of G-DNW portion L2 was found as 2.4 ± 1.92 × 10−6 mS/cm and revealed its effective applicability in near future. In addition to note, temperature dependent carrier transport mechanisms and activation energy calculations were reported in details in this work. Ultimately, to demonstrate the importance of our conductivity measurements, the possible mechanism behind the electrical transport and the comparative account on electrical resistivities of carbon based materials were provided.

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Section: Resultsmentioning

confidence: 99%

An Affordable Wet Chemical Route to Grow Conducting Hybrid Graphite-Diamond Nanowires: Demonstration by A Single Nanowire Device

Shellaiah

Chen

Simon

et al. 2017

Sci Rep

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“…In general, they can be synthesized by introducing chiral ligands, chiral templates, chiral physical environments, or through spontaneous resolution from achiral materials without chiral auxiliaries 7 – 10 . To produce chiral supramolecular biocoordination polymers (SBCPs), which exhibit unique biological characteristics and represent an excellent platform for understanding biorelated processes, amino acids are a particularly promising monomeric unit due to their remarkable molecular recognition capability, controllable chirality, and distinctive sequence-specific self-assembling properties 11 . Based on these characteristics, various molecules with amino acides were investigated on their molecular assemblies and exploitations for advanced functionalities 12 .…”

Section: Introductionmentioning

confidence: 99%

Chiral self-sorted multifunctional supramolecular biocoordination polymers and their applications in sensors

et al. 2018

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Chiral supramolecules have great potential for use in chiral recognition, sensing, and catalysis. Particularly, chiral supramolecular biocoordination polymers (SBCPs) provide a versatile platform for characterizing biorelated processes such as chirality transcription. Here, we selectively synthesize homochiral and heterochiral SBCPs, composed of chiral naphthalene diimide ligands and Zn ions, from enantiomeric and mixed R-ligands and S-ligands, respectively. Notably, we find that the chiral self-sorted SBCPs exhibit multifunctional properties, including photochromic, photoluminescent, photoconductive, and chemiresistive characteristics, thus can be used for various sensors. Specifically, these materials can be used for detecting hazardous amine materials due to the electron transfer from the amine to the SBCP surface and for enantioselectively sensing a chiral species naproxen due to the different binding energies with regard to their chirality. These results provide guidelines for the synthesis of chiral SBCPs and demonstrate their versatility and feasibility for use in various sensors covering photoactive, chemiresistive, and chiral sensors.

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“…Scanning electron microscopy (SEM) was used to visualize the nanowires (Figure a). The powder X‐ray diffraction (PXRD) patterns of the nanowires correspond to [Cd( l ‐cysteinate)] n ( 1 ; Figure d) , . The crystal structure of 1 is composed of a one‐dimensional (1D) ladder of cadmium and sulfur atoms arising from the coordinative bridging of cadmium by the thiol moiety of l ‐cysteine (see Figure S1 in the Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Solid‐Solution Coordination Polymers as Precursors for Zn_xCd_1–xS/C Composite Nanowires

et al. 2017

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The development of synthetic routes to nanomaterials has been motivated by their potential applications in electronics, optics, and catalytic reactions. Solution‐based synthesis has relied on organic stabilizers to regulate the crystal growth. Despite the beneficial effect on crystal growth, organic stabilizers attached to the resulting particles reduce the accessibility of reactants and inhibit charge transport, resulting in a lower catalytic activity than expected. In this work we have demonstrated that coordination polymers (CPs) can be used as precursors for photocatalysts without stabilizers. The pyrolysis of CP nanowires of [Cd(l‐cysteinate)]n gave CdS/C nanowires (CdS/C‐NWs) that exhibit photocatalytic activity for hydrogen generation superior to CdS nanowires with organic stabilizers (CdS/stb‐NWs). Transient absorption spectroscopy showed that CdS/C‐NWs provide an active surfaces to facilitate catalytic reactions associated with electron migration. Moreover, Zn‐doped CdS nanowires (ZnxCd1‐xS/C‐NWs) obtained by the pyrolysis of CPs exhibited higher photocatalytic activity than nondoped CdS/C‐NWs. The improvement in photocatalytic activity is attributable to the prolonged lifetime of photoexcited electrons. The pyrolysis of CPs provides a facile means to design nanocomposites that realize efficient catalytic reactions associated with facile charge transfer.

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Chirality-Discriminated Conductivity of Metal–Amino Acid Biocoordination Polymer Nanowires

Cited by 38 publications

References 35 publications

An Affordable Wet Chemical Route to Grow Conducting Hybrid Graphite-Diamond Nanowires: Demonstration by A Single Nanowire Device

An Affordable Wet Chemical Route to Grow Conducting Hybrid Graphite-Diamond Nanowires: Demonstration by A Single Nanowire Device

Chiral self-sorted multifunctional supramolecular biocoordination polymers and their applications in sensors

Solid‐Solution Coordination Polymers as Precursors for Zn_xCd_1–xS/C Composite Nanowires

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Chirality-Discriminated Conductivity of Metal–Amino Acid Biocoordination Polymer Nanowires

Cited by 38 publications

References 35 publications

An Affordable Wet Chemical Route to Grow Conducting Hybrid Graphite-Diamond Nanowires: Demonstration by A Single Nanowire Device

An Affordable Wet Chemical Route to Grow Conducting Hybrid Graphite-Diamond Nanowires: Demonstration by A Single Nanowire Device

Chiral self-sorted multifunctional supramolecular biocoordination polymers and their applications in sensors

Solid‐Solution Coordination Polymers as Precursors for ZnxCd1–xS/C Composite Nanowires

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Solid‐Solution Coordination Polymers as Precursors for Zn_xCd_1–xS/C Composite Nanowires