超分子性转化为分子性的可逆光学转录
Jaap J D de Jong1, Linda N Lucas, Richard M Kellogg
1Laboratory of Organic Chemistry, Stratingh Institute, University of Groningen, Nijenborgh 4, 9747 AG Groningen, Netherlands.
概括
研究人员设计了一个光响应性分子系统,其中分子和超分子性通信. 该系统表现出立体选择性凝形成,并允许在潜在的分子记忆应用中在奇拉状态之间进行光学切换.
科学领域:
- 化学 化学 化学
- 材料科学 材料科学 材料科学
- 超分子化学 超分子化学
背景情况:
- 性是分子过程的基础,如复制和催化.
- 了解分子和超分子性之间的相互作用对于先进材料至关重要.
研究的目的:
- 设计和合成一个可逆的,光响应的自我组装分子系统.
- 在这个系统中研究分子和超分子性之间的通信.
- 探索其创造智能功能材料和分子记忆的潜力.
主要方法:
- 设计和合成一种新型的光响应分子.
- 研究自我组装和凝形成过程.
- 使用光化学切换来改变超分子性.
- 循环二重化谱法用于分析奇拉状态.
主要成果:
- 该系统在自组装和凝过程中表现出异常的立体选择性.
- 光化学切换成功地锁定并逆转了超分子性.
- 清晰的性聚合状态被光学切换.
- 观察到分子和超分子性之间存在沟通的证据.
结论:
- 开发的系统通过光化学控制有效地将分子和超分子性联系起来.
- 这种光响应系统为创建可调整的奇拉材料提供了一个新的平台.
- 在分子记忆和先进的功能材料的潜在应用是有希望的.
相关概念视频
Gene Conversion
Other than maintaining genome stability via DNA repair, homologous recombination plays an important role in diversifying the genome. In fact, the recombination of sequences forms the molecular basis of genomic evolution. Random and non-random permutations of genomic sequences create a library of new amalgamated sequences. These newly formed genomes can determine the fitness and survival of cells. In bacteria, homologous and non-homologous types of recombination lead to the evolution of new...
Conservative Site-specific Recombination and Phase Variation
Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
The recognition sites for Cre recombinase called LoxP...
The recognition sites for Cre recombinase called LoxP...
Gene Conversion
Other than maintaining genome stability via DNA repair, homologous recombination plays an important role in diversifying the genome. In fact, the recombination of sequences forms the molecular basis of genomic evolution. Random and non-random permutations of genomic sequences create a library of new amalgamated sequences. These newly formed genomes can determine the fitness and survival of cells. In bacteria, homologous and non-homologous types of recombination lead to the evolution of new...
Forced Transdifferentiation
Transdifferentiation, also known as lineage reprogramming, was first discovered by Selman and Kafatos in 1974 in silkmoths. They observed that the moths’ cuticle-producing cells transformed into salt-producing cells. Many such cases of natural transdifferentiation occur in organisms. In humans, pancreatic alpha cells can become beta cells. In newts, the loss of the eye’s lens causes the pigmented epithelial cells to transdifferentiate into the lens cells.
Artificial transdifferentiation occurs...
Artificial transdifferentiation occurs...
Photoreceptors and Visual Pathways
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category, whereas...
Transformation
Microbial communities are dynamic environments where cell lysis releases free DNA into the surroundings. Other cells can take up this extracellular DNA through a process known as transformation.When a cell incorporates this foreign DNA into its genome, resulting in genetic modification, the process is known as transformation. Cells capable of this process are termed competent. Competence can be natural, as observed in certain bacteria and archaea, or artificially induced in the...


