ナノ流体振動ブラウンのモーター
Michael J Skaug1, Christian Schwemmer1, Stefan Fringes1
1IBM Research-Zurich, 8803 Rüschlikon, Switzerland.
まとめ
研究者はナノスケールのモーターを開発して 液体のナノ粒子の動きを正確に制御しました この革新的な装置は 効率的に粒子をサイズ別に分類し 先進的なナノ流体応用への道を切り開きます
科学分野:
- ナノテクノロジー
- 流体力学
- 統計的メカニズム
背景:
- 液体内のナノスケールオブジェクトの制御は,相互作用メカニズムのスケーリング制限のために困難です.
- 静電相互作用と流体力学は ナノスケールでの課題を提示します
研究 の 目的:
- ナノ流体系におけるナノ粒子の誘導輸送と分類方法の設計と実証.
- ナノスケールオブジェクト操作の課題を克服するために エンジニアリングされたエネルギー風景を使用します.
主な方法:
- ナノ粒子に特異なエネルギー風景を作り出すために 設計されたナノ流体裂け目幾何学
- 同じ電荷のナノ粒子と壁の間の静電相互作用を利用した.
- 不対称な電位と振動する電場を組み合わせた ブラウン振動モーターを実装した.
- 高解像度の60ナノメートルの金球を使って モーターの物理を調査した
主要な成果:
- エネルギー風景の形成と振動する電場を適用することによってナノ粒子の誘導輸送を達成しました.
- 60nmと100nmのゴールドナノ粒子を分離できるナノ流体分類装置を製造した.
- 素粒子が数秒で 反対方向に 分離する事が証明された
- この装置は1ナノメートルの 放射差で粒子を分離できると モデリングは示しました
結論:
- ナノスケールオブジェクトの輸送を効果的に制御できます.
- 開発されたナノ流体装置は,高効率のサイズベースの粒子の分離を示しています.
- この研究は,診断や材料科学などの分野における 先進的なナノ流体装置の基盤を提供します.
関連する概念動画
Motor Units
8.3K
The motor unit is a fundamental component of the neuromuscular system and plays a crucial role in coordinating muscle contractions. It consists of a somatic motor neuron, which connects and controls multiple skeletal muscle fibers, forming a single functional segment. The axon of the motor neuron branches out and establishes synaptic connections known as neuromuscular junctions with individual muscle fibers within the motor unit.
Motor units come in different sizes, with smaller units...
Motor units come in different sizes, with smaller units...
8.3K
Motor Units
62.0K
A motor unit consists of two main components: a single efferent motor neuron (i.e., a neuron that carries impulses away from the central nervous system) and all of the muscle fibers it innervates. The motor neuron may innervate multiple muscle fibers, which are single cells, but only one motor neuron innervates a single muscle fiber.
62.0K
Microtubule Associated Motor Proteins
10.8K
Eukaryotic cells have different motor proteins for transporting various cargo within the cell. These motor proteins differ based on the filament they associate with, the direction they move within the cell, and the type of cargo they transport. Motor proteins that associate with microtubules are known as microtubule-associated motor proteins. There are two families of microtubule-associated motor proteins —Kinesins and Dyneins. Both these proteins assist in the transport of cellular...
10.8K
Motor and Sensory Areas of the Cortex
7.7K
The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
7.7K
Indirect Motor Pathways
3.6K
The indirect motor or extrapyramidal pathways originate in the brainstem, the lower portion of the brain that connects it to the spinal cord. They consist of several distinct tracts, each with specialized functions. The four main tracts of the indirect motor pathways are the vestibulospinal tract, the reticulospinal tract, the tectospinal tract, and the rubrospinal tract.
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
3.6K
Motor Unit Stimulation
3.9K
When the neuron of a motor unit fires an action potential, it triggers a series of events, leading to a twitch contraction in the muscle fibers. The process of excitation-contraction coupling is crucial in relaying the action potential to the muscle fibers.
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
3.9K


