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相关概念视频

Transgenic Organisms00:53

Transgenic Organisms

Overview
Plant Breeding and Biotechnology01:59

Plant Breeding and Biotechnology

Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
Types of Genetic Transfer Between Organisms02:18

Types of Genetic Transfer Between Organisms

Genetic transfer occurs when genetic information is passed from one organism to another. It occurs via two mechanisms: vertical gene transfer and horizontal gene transfer. Vertical gene transfer occurs when genetic information is transferred from one generation to the next, which happens much more frequently than horizontal gene transfer. Both sexual and asexual reproduction are forms of vertical gene transfer, where one or more organisms pass some or all of their genome onto their progeny.
Gene Conversion02:08

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...
Transgenic Plants02:50

Transgenic Plants

Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
Conjugation01:19

Conjugation

Conjugation is a form of horizontal gene transfer that primarily occurs in bacteria and some archaea, promoting genetic diversity and adaptation. Bacteria can acquire resistance genes through conjugative plasmids, allowing them to survive antibiotic treatments that would otherwise be lethal. This process involves direct contact between cells through specialized structures such as the sex pilus and is mediated by conjugative plasmids, including the F (fertility) factor.Conjugation requires...

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相关实验视频

Updated: Jun 21, 2026

Evaluation of Polymeric Gene Delivery Nanoparticles by Nanoparticle Tracking Analysis and High-throughput Flow Cytometry
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有效且可扩展的基因传递方法,可轻松生成带离子碳点.

Manuel Algarra1, Elena Gonzalez-Muñoz2,3

  • 1INAMAT2-Institute for Advanced Materials and Mathematics, Department of Science, Public University of Navarra, 31006, Pamplona, Spain.

Biological procedures online
|March 8, 2024
PubMed
概括

这项研究引入了性碳点 (CCD) 进行高效的基因传递,提高细胞活力和转染率. 这种可扩展的方法为生物医学应用提供了更安全,更有效的替代方案.

关键词:
碳点是一些碳点.细胞转导的转导过程细胞转染是细胞的转染.基因输送 基因输送 基因输送聚乙烯胺 (PEI) 是一种

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科学领域:

  • 生物技术是生物技术.
  • 材料科学 材料科学 材料科学
  • 细胞生物学 细胞生物学

背景情况:

  • 基因传递面临着细胞吸收,内体逃逸和最小化毒性方面的挑战.
  • 生物医学基因传递系统需要可扩展性,易于制造和可负担性.

研究的目的:

  • 利用碳点开发一种高效,安全和可扩展的基因传递方法.
  • 为增强基因转染创造优化的阴性碳点 (CCD).

主要方法:

  • 通过通过静电结合用PEI涂覆碳点来合成阴阳性碳点 (CCD).
  • 与标准PEI复合体相比,评估了细胞活力和转染效率的CCD.
  • 在一个具有挑战性的逆转录病毒载体生产协议中测试了CCD,其中涉及多个等离子体的共传染.

主要成果:

  • 与PEI多重复体相比,CCD显示细胞活力的改善和转染效率的四倍增加.
  • 开发的CCDs促进了三种等离子体的具有挑战性的共传染,以产生逆转录病毒载体.
  • 基因传递的高效率和功能通过产生传染性逆转录病毒颗粒得到证实.

结论:

  • 开发的CCD代表了一种高效,可扩展和生物功能性的基因传递方法.
  • 这种方法提高了转染效率和细胞活力,为基因疗法和载体生产提供了有前途的替代方案.
  • 这项研究强调了人工碳点在推进生物医学基因传递应用中的潜力.