Enantiomers of Single Chirality Nanotube as Chiral Recognition Interface for Enhanced Electrochemical Chiral Analysis

Chun-ling, PU; Xu, Yuling; Liu, Qi; Zhu, Anwei; Shi, Guoyue

doi:10.1021/acs.analchem.8b05336

Cited by 72 publications

(76 citation statements)

References 32 publications

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“…Therefore, the recognition of chiral enantiomers is of essential signicance for drugs associated with chirality. 11,12 To date, various enantioselective recognition systems have been extensively developed, majorly based on natural chiral (macro) molecules and synthetic chiral (macro)molecules. 13,14 Chiral recognition also plays important roles in other cases involving chirality, such as crystal growth, enantiomeric separation, and self-assembly.…”

Section: Introductionmentioning

confidence: 99%

Electrospinning chiral fluorescent nanofibers from helical polyacetylene: preparation and enantioselective recognition ability

Yang

Zhao

et al. 2020

Nanoscale Adv.

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Chirality is ubiquitous in nature and closely related to the pharmacological effects of chiral drugs. Therefore, chiral recognition of molecular enantiomers becomes an important research theme. Fluorescence detection is highly sensitive and fast but has achieved only limited success in enantiomeric detection due to the lack of powerful chiral fluorescence detection materials. In this paper, a novel chiral fluorescent probe material, i.e. a chiral fluorescent nanofiber membrane, is prepared from chiral helical substituted polyacetylene by the electrospinning technique. The SEM images demonstrate the success in fabricating continuous, uniform nanofibers with a diameter of about 100 nm. Circular dichroism spectra show that the nanofibers exhibit fascinating optical activity. One of the enantiomeric chiral fluorescent membranes has chiral fluorescence recognition effects towards alanine and chiral phenylethylamine, while the other enantiomeric membrane does not. The prepared chiral fluorescent nano-materials are expected to find various applications in chirality-related fields due to their advantages such as chirality, fluorescence, and a high specific surface area. The established preparation approach also promises a potent and versatile platform for developing advanced nanofiber materials from conjugated polymers. † Electronic supplementary information (ESI) available: Structural formula, FT-IR spectra, GPC, electrospinning parameters, SEM images, digital photo of uorescent polymer membranes, CD and UV-vis absorption spectra, and uorescence emission spectra. See

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Section: Introductionmentioning

confidence: 99%

Electrospinning chiral fluorescent nanofibers from helical polyacetylene: preparation and enantioselective recognition ability

Yang

Zhao

et al. 2020

Nanoscale Adv.

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“…Using differential pulse voltammetry (DPV), this electrode shows an enantioselective response for 3,4-dihydroxyphenylalanine (DOPA) enantiomers (l-DOPA and d-DOPA), which is sufficient to both distinguish each enantiomeric species and determine DOPA enantiomeric excess. [14] Figure 6e shows a schematic of this DOPA enantiomeric sensing strategy, as well as DPV spectra of P-(6,5) SWCNT/GCE with different mixtures of L-DOPA/D-DOPA concentrations. This sensor suggests the potential of SWCNT enantiomers for highly selective biological sensing, which is expected to inspire further investigations into SWCNT enantiomer applications.…”

Section: Wwwadvmatde Wwwadvancedsciencenewscommentioning

confidence: 99%

Section: Toward Enantiomerically Pure Swcntsmentioning

confidence: 99%

“…Due to their small size,6,7 solution‐processability,8 chemical stability,9 and chirality‐dependent optoelectronic properties,10 SWCNTs offer a number of unique advantages and are compatible with the complex requirements of future computing devices. Recent advances in chiral enrichment of polydisperse SWCNTs8,10 have allowed their use as semiconducting channels in diverse settings including charge transport devices,2 optical emitters and detectors,11,12 and chemical sensors 2,3,13,14. With this tunable functionality, a range of SWCNT‐based computing applications have been realized, such as printed digital logic,15 sub‐10 nm complementary metal‐oxide‐semiconductor (CMOS) field‐effect transistors (FETs),16 neuromorphic devices,17 single‐photon emitters (SPE),18 and enantiomer‐recognition sensors 14…”

Section: Introductionmentioning

confidence: 99%

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Chirality‐Enriched Carbon Nanotubes for Next‐Generation Computing

Rojas

Hersam

2020

Advanced Materials

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electronic, [3-4,4] and functional requirements. [5] Conventional silicon integrated circuit (IC) technology faces significant challenges in meeting these demands due to its limited mechanical flexibility, high temperature processing, and scaling limitations. Emerging alternative computing platforms based on other crystalline semiconductors suffer from similar limitations. Consequently, nextgeneration computing necessitates the exploration of radically different electronic materials. Single-walled carbon nanotubes (SWCNTs) are among the most promising and highly studied nanoelectronic materials. Due to their small size, [6,7] solutionprocessability, [8] chemical stability, [9] and chirality-dependent optoelectronic properties, [10] SWCNTs offer a number of unique advantages and are compatible with the complex requirements of future computing devices. Recent advances in chiral enrichment of polydisperse SWCNTs [8,10] have allowed their use as semiconducting channels in diverse settings including charge transport devices, [2] optical emitters and detectors, [11,12] and chemical sensors. [2,3,13,14] With this tunable functionality, a range of SWCNT-based computing applications have been realized, such as printed digital logic, [15] sub-10 nm complementary metal-oxide-semiconductor (CMOS) field-effect transistors (FETs), [16] neuromorphic devices, [17] single-photon emitters (SPE), [18] and enantiomer-recognition sensors. [14] Herein, we discuss recent advances in SWCNT-based computing technologies that process, manage, and communicate information, with an emphasis on the enabling role of chiral enrichment. Section 2.1 defines the different levels of chiral enrichment. Sections 2.2 and 2.3 describe direct growth methods and post-processing purification of SWCNTs for electronic-type and monochiral enrichment. Section 3 discusses applications of electronic-type-enriched SWCNTs such as wearables, highly scaled FETs, 3D logic-memory integration, and neuromorphic devices. Section 4 outlines applications of monochiral-enriched SWCNTs including monochiral FETs, optical emitters, photodetectors, and optoelectronic ICs. Section 5 considers recent progress toward enantiomerically pure SWCNTs. Finally, Section 6 presents an outlook for SWCNTs in next-generation computing applications including a delineation of remaining challenges and future opportunities. For the past half century, silicon has served as the primary material platform for integrated circuit technology. However, the recent proliferation of nontraditional electronics, such as wearables, embedded systems, and lowpower portable devices, has led to increasingly complex mechanical and electrical performance requirements. Among emerging electronic materials, single-walled carbon nanotubes (SWCNTs) are promising candidates for next-generation computing as a result of their superlative electrical, optical, and mechanical properties. Moreover, their chirality-dependent properties enable a wide range of emerging electronic applications including sub-10 nm complementary fie...

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“…Top: altering the substituents on the phenyl ring of the styrene system (1, 2-6, upright characters) and 1'-substituted ferrocenyl derivatives (7-9, italic characters). Bottom: altering the substituents of the phenyl groups in the phosphinyl moiety(1,(12)(13)(14).…”

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confidence: 99%

Widening the Scope of “Inherently Chiral” Electrodes: Enantiodiscrimination of Chiral Electroactive Probes with Planar Stereogenicity

et al. 2020

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A series of planar‐stereogenicity ferrocenes, important as chiral promoters in enantioselective catalysis, is characterized in terms of relationships between structure and electronic properties. The enantiomers of six selected model cases are then successfully discriminated in voltammetry experiments on electrodes modified with electrodeposited inherently chiral oligomer films, in terms of significant potential differences, specular inverting probe or selector configuration. Small substituent changes do not alter the enantiomer peak sequence, but result in significant modulation of peak potential differences, which appear consistent with the availability of chiral/selector matching elements. The present stereogenic plane case, combined with former ones involving stereogenic centers, axes, and/or helices, shows that the inherent chirality strategy in electroanalysis can be effective with all four rigid stereogenic elements.

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Enantiomers of Single Chirality Nanotube as Chiral Recognition Interface for Enhanced Electrochemical Chiral Analysis

Cited by 72 publications

References 32 publications

Electrospinning chiral fluorescent nanofibers from helical polyacetylene: preparation and enantioselective recognition ability

Electrospinning chiral fluorescent nanofibers from helical polyacetylene: preparation and enantioselective recognition ability

Chirality‐Enriched Carbon Nanotubes for Next‐Generation Computing

Widening the Scope of “Inherently Chiral” Electrodes: Enantiodiscrimination of Chiral Electroactive Probes with Planar Stereogenicity

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