Terahertz spectroscopy for interpreting the formation and hierarchical structures of silk fibroin oligopeptides

Bian, Yujing; Wu, Xiaodong; Zhu, Zhenqi; Zhang, Xun; Zeng, Ruonan; Yang, Bin

doi:10.1039/d1an02088a

Cited by 5 publications

(2 citation statements)

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“…3(a)). 1,36 The mechanical performance of silkworm silk directly correlates with these compositions and their arrangements, and the abundant hydrogen bonds in β-crystallites. 37 Whereas, it is far more important to ascertain the stretching position of the liquid crystal nanofibrils in the silk duct during centrifugal reeling.…”

Section: Resultsmentioning

confidence: 99%

High-performance artificially reeled silkworm silk via a multi-task and high-efficiency centrifugal reeling technique and its application in soft actuators

Hou

Shu

et al. 2023

Mater. Horiz.

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Section: Resultsmentioning

confidence: 99%

High-performance artificially reeled silkworm silk via a multi-task and high-efficiency centrifugal reeling technique and its application in soft actuators

Hou

Shu

et al. 2023

Mater. Horiz.

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“…

Terahertz (THz) technologies have attracted tremendous attention due to their extensive applicability in chemical and biological sensing, [1][2][3][4] medical and near-field imaging, [5][6][7][8][9] on-chip communication, [10][11][12][13] and spectroscopy. [14][15][16][17] For such applications, it is highly desirable to develop cost-effective subwavelength-scale components to process and transmit THz waves. However, the diffraction limit of light hinders miniaturized optical devices.

…”

mentioning

confidence: 99%

Terahertz Waveguides by Coupling Plasmon Polaritons of Cylindrical Metal Wires and a Graphene‐Embedded Slot Waveguide

Huang¹

2023

Advanced Photonics Research

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Transmitting and processing terahertz (THz) signals in a chip‐scale form are tremendously important due to extensive demands for these signals in various applications ranging from sensing, imaging, communication, and spectroscopy. However, developing compact and low‐loss THz devices is still a challenging task. Herein, a novel waveguide structure consisting of a graphene‐embedded slot waveguide sandwiched between two cylindrical metal wires operating in the THz range of f = 1–5 THz is proposed. By appropriately modulating the mode hybridizing from the graphene slot waveguide and cylindrical metal wires, the resultant mode obtains a long propagation distance of 192 μm, while maintaining an ultrasmall mode area of 1.7 × 10−4, thereby achieving an unprecedented high figure of merit (FoM) = 12 985. Compared with other reported structures, the proposed structure outperforms other reported structures in term of FoM, crosstalk, and fabrication difficulty. Furthermore, the degree of integration is evaluated by analyzing crosstalk between adjacent waveguides. With an edge‐to‐edge spacing of 2.7 μm, the power transfer between waveguides can be ignored and the crosstalk is approximately frequency independent. It is believed that the proposed design paves an insightful approach into designing a wider variety of promising THz photonic integrated circuits.

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Terahertz spectroscopy for quantitatively elucidating the crystal transformation of chiral histidine enantiomers to racemic compounds

et al. 2023

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Terahertz spectroscopy for interpreting the formation and hierarchical structures of silk fibroin oligopeptides

Abstract: Determining the configuration and conformation of peptides is crucial for interpreting their structure-property relationships. In this work, we present a nondestructive terahertz time-domain spectroscopy combined with density functional theory (DFT)...

Cited by 5 publications

References 50 publications

High-performance artificially reeled silkworm silk via a multi-task and high-efficiency centrifugal reeling technique and its application in soft actuators

High-performance artificially reeled silkworm silk via a multi-task and high-efficiency centrifugal reeling technique and its application in soft actuators

Terahertz Waveguides by Coupling Plasmon Polaritons of Cylindrical Metal Wires and a Graphene‐Embedded Slot Waveguide

Terahertz spectroscopy for quantitatively elucidating the crystal transformation of chiral histidine enantiomers to racemic compounds

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