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関連する概念動画

Hybridization of Atomic Orbitals I03:24

Hybridization of Atomic Orbitals I

The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
Hybridization of Atomic Orbitals II03:35

Hybridization of Atomic Orbitals II

sp3d and sp3d 2 Hybridization
Valence Bond Theory02:42

Valence Bond Theory

Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
Formation of Intermediate Filaments00:57

Formation of Intermediate Filaments

Intermediate filaments are cytoskeletal proteins with higher tensile strength and flexibility than microfilaments and microtubules. Unlike the other two cytoskeletal proteins, intermediate filament formation lacks the enzymatic activity to hydrolyze nucleotides like ATP and GTP to generate energy for polymerization. Therefore, the formation of intermediate filaments is multistep self-assembly. The involvement of any accessory proteins in intermediate filament formation has not yet been reported.
Ionic Association01:28

Ionic Association

The ionic association is the association of oppositely charged ions in an electrolyte solution to form ion pairs. Bjerrum defined ion pairs as two oppositely charged ions whose electrostatic attraction exceeds the thermal energy of the system, typically expressed as 2kT. Electrostatic attraction depends on ionic charge, separation distance, and the dielectric constant of the medium. Thermal energy, represented by kT, reflects the tendency of ions to move independently due to molecular motion.
The Electrical Double Layer01:30

The Electrical Double Layer

In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...

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Updated: May 11, 2026

Stretching Micropatterned Cells on a PDMS Membrane
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高周波および本質的に伸縮可能なポリマーダイオード

Naoji Matsuhisa1,2,3,4, Simiao Niu1, Stephen J K O'Neill1

  • 1Department of Chemical Engineering, Stanford University, Stanford, CA, USA.

Nature
|December 9, 2021
PubMed
まとめ
この要約は機械生成です。

研究者らは13.56メガヘルツで動作する 本質的に伸縮可能なダイオードを開発し,高度な皮膚のようなウェアラブル電子機器と個人医療のための高周波無線アプリケーションを可能にしました.

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科学分野:

  • 材料科学
  • 電気工学
  • 生物医学工学

背景:

  • 本質的に伸縮可能な電子機器は 先進的なパーソナルヘルスケアと遠隔医療に不可欠です
  • 既存の伸縮装置は,動作周波数 (<100 Hz) が限られており,多くのアプリケーションを妨げています.
  • ウェアラブル・エレクトロニクスのワイヤレス機能には高周波の操作が必要です.

研究 の 目的:

  • 高い周波数で動作できる固有の伸縮性ダイオードを開発する.
  • 皮膚のようなウェアラブル・電子機器の ワイヤレス機能を可能にします
  • ストレッチャブルエレクトロニクスの能力を向上させ パーソナルヘルスケアに活用する

主な方法:

  • ダイオード用に設計・合成された 伸縮性有機・ナノ材料
  • 伸縮性アノド,カトド,半導体,電流集計の部品を設計した.
  • 伸縮ダイオードと センサー,ディスプレイ,アンテナを統合しました

主要な成果:

  • 13.56メガヘルツで動作する本質的に伸縮可能なダイオードを達成しました.
  • ラジオ周波数識別 (RFID) に適した高周波動作が実証されています.
  • ダイオード,センサ,ディスプレイ,アンテナを統合した 伸縮可能なワイヤレスタグを作成しました.

結論:

  • この作業は 伸縮可能な電子機器の周波数制限を克服します
  • 開発されたダイオードは,皮膚のようなウェアラブルデバイスの高周波無線操作を可能にします.
  • ウェアラブル技術の機能強化に向けた 重要な進歩です