単一分子の力を発見した
Robert A Forties1, Michelle D Wang1
1Department of Physics, Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, NY 14853, USA; Howard Hughes Medical Institute, Cornell University, Ithaca, NY 14853, USA.
Cell
|April 1, 2014
まとめ
単一の分子に対する機械的な力は,ダイナミックなプロセスを明らかにします. トルコーク (Torque) とは
科学分野:
- 分子生物学は分子生物学である.
- バイオフィジックス 生物物理学
- バイオケミストリー バイオケミストリー
背景:
- 単一分子操作技術は,分子ダイナミクスの研究を進めてきました.
- 機械的性質を理解することは,生物学的機能の解明に不可欠です.
- 最近のイノベーションにより,トルクの正確な適用と測定が可能になりました.
研究 の 目的:
- 単一の生物分子の機械的操作に関する最近の発見を強調するため.
- 分子プロセスにおけるトルクの役割を強調する.
- 詳細な分子運動の可視化を示すために.
主な方法:
- 単一の生物学的分子の機械的操作.
- トークの適用と測定. トークの適用と測定.
- 分子運動のための高度な可視化技術.
主要な成果:
- 分子レベルで高度にダイナミックで機械的なプロセスを明らかにした.
- トークが分子行動に与える影響を実証した.
- 複雑な分子運動の可視化が可能になりました.
結論:
- 機械学的研究,特にトルクに関する研究は,分子機能に関する深い洞察を提供します.
- 先進的な技術は,ますます複雑な生物システムの調査を容易にする.
- これは,この分野における最近の重要な進歩を強調しています.
関連する概念動画
00:54Electron Behavior
Electrons are negatively charged subatomic particles that are attracted to an orbit around the positively-charged nucleus of an atom. They reside in locations that are associated with energy levels called shells and are further organized into sub-shells and orbitals within each shell.Electrons Orbit the NucleusElectrons are found in specific locations outside of the nucleus. The shell in which an electron resides indicates the general energy level of the electron: those closer to the nucleus...
01:16The DNA Helix
Overview
03:37Subatomic Particles
Dalton was only partially correct about the particles that make up matter. All matter is composed of atoms, and atoms are composed of three smaller subatomic particles: protons, neutrons, and electrons. These three particles account for the mass and the charge of an atom.
01:13Force and Potential Energy in One Dimension
Force can be calculated from the expression for potential energy, which is a function of position. The component of a conservative force, in a particular direction, equals the negative of the derivative of the corresponding potential energy with respect to the displacement in that direction. For regions where potential energy changes rapidly with displacement, the work done and force is maximum. Also, when force is applied along the positive coordinate axis, the potential energy decreases with...
01:09Electron Behavior
Electrons are negatively charged subatomic particles attracted to and orbit around the positively-charged nucleus of an atom. They reside in spaces associated with energy levels called shells and are further organized into subshells and orbitals within each shell.
Electrons Orbit the Nucleus
Electrons are found in specific locations outside of the nucleus. The shell in which an electron resides indicates the general energy level of the electron: those closer to the nucleus have less energy,...
Electrons Orbit the Nucleus
Electrons are found in specific locations outside of the nucleus. The shell in which an electron resides indicates the general energy level of the electron: those closer to the nucleus have less energy,...
01:19Thomson's e/m Experiment
In a beam of charged particles created by a heated cathode, the particles move at different speeds. However, many applications need a beam with uniform particle speeds. An arrangement known as a velocity selector uses electric and magnetic fields to pick particles with a particular speed from the beam.
A particle with charge q, speed v, and mass m enters an area from the top, where the magnetic and electric fields are perpendicular both to the particle's motion and to one another. The magnetic...
A particle with charge q, speed v, and mass m enters an area from the top, where the magnetic and electric fields are perpendicular both to the particle's motion and to one another. The magnetic...