Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Harmonic Mean01:09

Harmonic Mean

3.8K
The arithmetic mean is usually skewed towards the larger values in the data set. Therefore, to avoid this inherent bias towards smaller values, the harmonic mean is used.
Take the example of the speed of a car, which is the measure of the rate of distance traveled. If the vehicle traverses the same distance back-and-forth, its average speed equals the total distance traveled divided by the total time taken. However, if the car moves with varying speeds, then the arithmetic mean is more skewed...
3.8K
Protein-protein Interfaces02:04

Protein-protein Interfaces

14.8K
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
14.8K
Simple Harmonic Motion01:21

Simple Harmonic Motion

15.4K
Simple harmonic motion is the name given to oscillatory motion for a system where the net force can be described by Hooke's law. If the net force can be described by Hooke's law and there is no damping (by friction or other non-conservative forces), then a simple harmonic oscillator will oscillate with equal displacement on either side of the equilibrium position. To derive an equation for period and frequency, the equation of motion is used. The period of a simple harmonic oscillator is given...
15.4K
Synthesis and Decomposition Reactions02:17

Synthesis and Decomposition Reactions

38.4K
Synthesis and decomposition are two types of redox reactions. Synthesis means to make something, whereas decomposition means to break something. The reactions are accompanied by chemical and energy changes. 
38.4K
Energy in Simple Harmonic Motion01:23

Energy in Simple Harmonic Motion

13.0K
To determine the energy of a simple harmonic oscillator, consider all the forms of energy it can have during its simple harmonic motion. According to Hooke's Law, the energy stored during the compression/stretching of a string in a simple harmonic oscillator is potential energy. As the simple harmonic oscillator has no dissipative forces, it also possesses kinetic energy. In the presence of conservative forces, both energies can interconvert during oscillation, but the total energy remains...
13.0K
Characteristics of Simple Harmonic Motion01:17

Characteristics of Simple Harmonic Motion

18.1K
The key characteristic of the simple harmonic motion is that the acceleration of the system and, therefore, the net force are proportional to the displacement and act in the opposite direction to the displacement. Additionally, the period and frequency of a simple harmonic oscillator are independent of its amplitude. For example, diving boards move faster or slower based on their thickness. A stiff, thick diving board has a large force constant, which causes it to have a smaller period, while a...
18.1K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Adsorption of Cationic Lignin Derivatives on Negatively Charged Model Surfaces and Hair Fibers: Implications for Hair Conditioning Performance.

ACS applied materials & interfaces·2026
Same author

Are We Adequately Testing Essential Oils as Insecticides in the Laboratory? Bridging the Gap Between Laboratory Bioassays and Field Applications.

Plants (Basel, Switzerland)·2026
Same author

Insights into the self-assembly and interaction of sars-cov-2 fusion peptides with biomimetic plasma membranes.

Nature communications·2025
Same author

Formation and Interfacial Behavior of Chitosan-Alginate Interpolyelectrolyte Complexes: From Bulk Dispersions to Layer-by-Layer Films.

Polymers·2025
Same author

Sustainable Materials for Energy.

Nanomaterials (Basel, Switzerland)·2025
Same author

Structural molecular details of the endocytic adaptor protein CALM upon binding with phosphatidylinositol 4,5-bisphosphate-containing model membranes.

Communications chemistry·2025

相关实验视频

Updated: Feb 14, 2026

Harmonic Nanoparticles for Regenerative Research
09:23

Harmonic Nanoparticles for Regenerative Research

Published on: May 1, 2014

12.2K

用于生物医学成像的第二波代纳米粒子:与模型生物接口的合成和相互作用

Irene Nepita1, Maria Teresa Buscaglia1, Belen Arcos-Álvarez2

  • 1CNR-Institute of Condensed Matter Chemistry and Technology for Energy, Unit of Genoa, 16149 Genoa, Italy.

Molecules (Basel, Switzerland)
|February 13, 2026
PubMed
概括
此摘要是机器生成的。

酸铁纳米颗粒显示出生物医学成像的希望,因为它们的光学特性. 研究人员研究了它们与脂质层和蛋白质的相互作用,观察了结合和蛋白质冠状形成.

关键词:
酸泰坦酸是一种酸.生物医学成像成像技术纳米颗粒是一种纳米粒子.第二个波的第二代波.张力测量是一种张力测量.

更多相关视频

Bridging the Bio-Electronic Interface with Biofabrication
16:38

Bridging the Bio-Electronic Interface with Biofabrication

Published on: June 6, 2012

17.4K
Generation of Alginate Microspheres for Biomedical Applications
10:33

Generation of Alginate Microspheres for Biomedical Applications

Published on: August 12, 2012

21.9K

相关实验视频

Last Updated: Feb 14, 2026

Harmonic Nanoparticles for Regenerative Research
09:23

Harmonic Nanoparticles for Regenerative Research

Published on: May 1, 2014

12.2K
Bridging the Bio-Electronic Interface with Biofabrication
16:38

Bridging the Bio-Electronic Interface with Biofabrication

Published on: June 6, 2012

17.4K
Generation of Alginate Microspheres for Biomedical Applications
10:33

Generation of Alginate Microspheres for Biomedical Applications

Published on: August 12, 2012

21.9K

科学领域:

  • 材料科学 材料科学 材料科学
  • 生物物理学的生物物理.
  • 纳米技术 纳米技术

背景情况:

  • 酸铁 (BT) 纳米粒子具有非线性光学特性,特别是第二波生成 (SHG).
  • SHG能够使用高信号噪声比率进行深层组织成像,这对于生物医学应用至关重要.
  • 了解纳米粒子-生物系统相互作用对于安全有效的使用至关重要.

研究的目的:

  • 研究酸铁纳米颗粒的合成和表征.
  • 探索BT纳米粒子和模型生物系统,特别是脂质单层之间的相互作用.
  • 评估BT纳米颗粒对脂质层特性和蛋白质冠状形成的影响.

主要方法:

  • 酸铁纳米颗粒的合成和表征.
  • 利用兰木尔谷和动态光散射 (DLS) 来研究纳米粒子-脂质相互作用.
  • 使用超分辨率显微镜研究了在白蛋白 (血清蛋白) 存在下纳米粒子的行为,并证实了蛋白质冠状形成.

主要成果:

  • 酸铁纳米颗粒成功合成和表征.
  • 观察到纳米颗粒纳入1,2-dipalmitoyl-sn-glycerol-3-phosphocholine (DPPC) 脂质单层,从而改变了相位行为.
  • 在阿尔伯的存在下,在纳米粒子周围自发形成蛋白质冠状证实.

结论:

  • 酸纳米颗粒与模型生物界面相互作用,影响脂质层特性.
  • 蛋白冠的形成是这些纳米粒子在生物环境中的关键相互作用机制.
  • 这些发现促进了对BT纳米粒子的理解,用于潜在的生物医学成像应用.