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関連する概念動画

DNA as a Genetic Template02:05

DNA as a Genetic Template

29.0K
Two structural features of the DNA molecule provide a basis for the mechanisms of heredity: the four nucleotide bases and its double-stranded nature. The Watson-Crick model of double-helical DNA structure, proposed in 1952, drew heavily upon the X-ray crystallography work of researchers Rosalind Franklin and Maurice Wilkins. Watson, Crick, and Wilkins jointly received the Nobel Prize in Physiology or Medicine for their work in 1962. Franklin was, controversially, excluded from the prize for...
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Assembly of Cytoskeletal Filaments01:18

Assembly of Cytoskeletal Filaments

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Cytoskeletal filaments are polymeric forms of smaller protein subunits. However, individual cytoskeletal filaments may easily disassemble or associate with other similar filaments to form rigid structures. Microfilaments, made of actin monomers, rely on actin-binding proteins to form bundles and create networks of individual actin filaments. Microtubules rely on microtubule-associated proteins (MAPs) to form sturdy cylindrical structures. However, the proteins involved in forming complex...
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Production of Formed Elements01:34

Production of Formed Elements

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Hemangioblasts are multipotent stem cells originating from the mesoderm. They give rise to hematopoietic stem cells (HSCs), which undergo hematopoiesis to produce all the formed elements of blood. This process is regulated by a complex network of hematopoietic growth factors, including transcription factors, growth factors, and cytokines. These factors stimulate the HSCs to divide and differentiate, though some HSCs remain undifferentiated to maintain a self-renewing pool.
Most HSCs commit to...
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Plastic Deformation in Circular Shafts01:20

Plastic Deformation in Circular Shafts

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When materials are subjected to forces that surpass their yield strength, they undergo a process known as plastic deformation. This results in a permanent alteration or strain in their structure. This concept can be specifically applied to circular shafts, where the deformation leads to a change in its shape. The precise evaluation of this plastic deformation requires understanding the stress distribution within the circular shaft, which is achieved by calculating the maximum shearing stress in...
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The DNA Helix01:07

The DNA Helix

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Deoxyribonucleic acid, or DNA, is the genetic material responsible for passing traits from generation to generation in all organisms and most viruses. DNA is composed of two strands of nucleotides that wind around each other to form a spring-like structure called a double helix. However, the double helix is not perfectly symmetrical. Instead, there are regularly occurring grooves in the structure. The major groove occurs where the sugar-phosphate backbones are relatively far apart. This space...
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Updated: Apr 15, 2026

Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles
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Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles

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形状相補の非ベースペアリング3Dコンポーネントによって形成されたダイナミックDNAデバイスとアセンブリ.

Thomas Gerling1, Klaus F Wagenbauer1, Andrea M Neuner1

  • 1Physik Department, Walter Schottky Institute, Technische Universität München Am Coulombwall 4a, 85748 Garching near Munich, Germany.

Science (New York, N.Y.)
|March 28, 2015
PubMed
まとめ
この要約は機械生成です。

研究者らは,塩基配列なしで自己組み立て可能な3DDNA構造を作り,ナノロボットや再構成可能なデバイスのような複雑なオブジェクトを形成しました. これらのDNAアセンブリは,形状と環境要因によって制御されます.

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Designing a Bio-responsive Robot from DNA Origami
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Design and Synthesis of a Reconfigurable DNA Accordion Rack
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関連する実験動画

Last Updated: Apr 15, 2026

Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles
10:23

Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles

Published on: May 8, 2015

12.3K
Designing a Bio-responsive Robot from DNA Origami
13:32

Designing a Bio-responsive Robot from DNA Origami

Published on: July 8, 2013

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Design and Synthesis of a Reconfigurable DNA Accordion Rack
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Design and Synthesis of a Reconfigurable DNA Accordion Rack

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科学分野:

  • * ナノテクノロジー
  • * 分子生物学 * 分子生物学
  • * マテリアルサイエンス

背景:

  • *DNAナノテクノロジーは,通常,構造形成のための塩基配列に依存しています.
  • *複雑で非生物学的3DDNAアセンブリを作成することは依然として課題です.

研究 の 目的:

  • * 形状の互補性に基づく3DDNA構成要素の自己組み立てを実証するため,塩基配列とは関係なく.
  • *再構成可能なDNAベースのデバイスと構造を設計する.

主な方法:

  • * 溶液中のDNA成分を自己組み立てするために形状補完性を利用する.
  • * 電子顕微鏡,スペクトル顕微鏡 (FRET),および電泳性運動分析を用いて特徴づけました.
  • * カチオン濃度,温度,鎖移転反応を含む制御メカニズムを調査する.

主要な成果:

  • *フィラメント,格子,機能的装置を含むホモ・ヘテロマルチマトリのDNAオブジェクトの成功生産.
  • * 核塩基堆積結合により,静電反発を相殺するアセンブリの安定化が実証されています.
  • *環境パラメータとアロステリックメカニズムを通じて,組み立ての形状に対する精密な制御を披露した.

結論:

  • * 形相補性は,3D DNAナノ構造のプログラム可能な自己組み立てのための実行可能な原則です.
  • * このアプローチにより,洗練された,再構成可能なDNAベースのナノデバイスを作成できます.
  • *この発見は,DNAを用いて複雑な分子機械や材料を設計するための新たな道を開く.