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Rigidity-dependent formation process of DNA supramolecular hydrogels

A DNA building block with tunable rigidity was constructed, and the corresponding hydrogel formation process was investigated accordingly. 

  • Yufan Pan
  • Bo Yang
  • Dongsheng Liu
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    Over the past decades, nanotechnology and synthetic chemistry succeeded in on-demand design of nanoscale building blocks such as functional molecules or colloidal nanostructures. Inspired by nature, such building blocks can be used for precise assembly of hierarchical mesostructured materials with novel advanced functionality....to be submitted by August 31, 2022

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    SPECIAL ISSUE | Hydrogels are of great interests from the viewpoints of their diverse applications such as disposal water absorbent, tissue engineering, drug delivery, etc. New synthetic techniques as well as analytical methods have opened new gates to intelligent and advanced hydrogel-related materials.

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  • In this work, the formation of DNA supramolecular hydrogels was controlled by tuning rigidity of building blocks. The strand displacement reaction was used to in situ tuning the rigidity of the molecular network of the DNA supramolecular hydrogel. Our experiments revealed that the rigidity plays an important role in the formation and mechanical properties of hydrogels.

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    • Bo Yang
    • Dongsheng Liu
    Article Open Access
  • Tuning of the oscillations within a single nanodevice is a vital factor for harnessing them to neuromorphic computing. Herein, tuning of the oscillation properties of spin structures within a single permalloy circular disk achieved by manipulating the dimensionality of spin structures is directly observed by the time-resolved X-ray microscopy.

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  • A facile chemical vapor method is developed for large-scale synthesis of CsPbX3-ZSM-5 composites. Owing to the effective confinement and encapsulation of CsPbBr3 QDs by ZSM-5, the composites possess excellent photophysical properties and ultrahigh stability. The prepared composites are applied in white light-emitting diodes (WLEDs) and multicolor-coded anti-counterfeiting inks. This technique provides the probability for commercial production of these perovskite composites with robust stability.

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  • A very active research area in superconductivity is the performance improvementofthe current carrying capability (Jc). Here, we show that the depairing current (Jd) can beincreased by controlling the penetration depth (λ) and coherence length (ξ) in the two most representative materials: in REBa2Cu3Oy we increased the carrier density to decrease λ and ξ, and in BaFe2(As1-xPx)2 we tuned the chemical pressure. The combination ofthese thermodynamic and flux-pinning optimization routes leads to a dramatic increase of Jc to Jc ~150 MA/cm2 at 4.2 K (32.4% of Jd) for REBa2Cu3Oy, the highest value ever reported for any superconductor.

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Special issue on Hydrogels and Hydrogel-related Healing Materials

Special issue on Hydrogels and Hydrogel-related Healing Materials

Hydrogels are of great interests from the viewpoints of their diverse applications such as disposal water adsorbent, tissue engineering, drug delivery, etc. New synthetic techniques as well as analytical methods have opened new gates to intelligent and advanced hydrogel-related materials. In combination with the broad term “healing”, the hydrogel-related materials have also been experiencing remarkable innovations. Some of the healing materials are designed for their own repair, others to assist the healing of the damaged bio-organisms. This special issue of NPG Asia Materials is focusing on the recent innovations related to hydrogels and hydrogel-related healing material, and presents state-of-the-art original articles as well as comprehensive reviews in this fast-growing field.
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