一个可存储的封装双层芯片,包含单个蛋白质纳米孔
Xiao-feng Kang1, Stephen Cheley, Allison C Rice-Ficht
1Department of Molecular and Cellular Medicine, The Texas A&M University System Health Science Center, College Station, TX 77843-1114, USA.
Journal of the American Chemical Society
|March 23, 2007
概括
使用α-hemolysin (aHL) 蛋白质孔的新型便携式纳米孔芯片在数周内保持稳定. 这项技术可以对像伊诺西三酸盐 (IP3) 这样的分子进行敏感检测.
科学领域:
- 生物技术是生物技术.
- 纳米技术 纳米技术
- 生物物理学的生物物理.
背景情况:
- 随机传感技术为敏感的分子检测提供了潜力.
- 开发强大的便携式设备对于实际的纳米孔应用至关重要.
- 单蛋白纳米孔是先进生物传感器中的关键组件.
研究的目的:
- 开发一种稳定,便携式芯片,用于单蛋白纳米孔传感.
- 为了证明封装纳米孔芯片用于分子检测的功能.
- 使用新型纳米孔传感器检测第二个信息传递物伊诺西1,4,5-三酸盐 (IP3).
主要方法:
- 在平面脂双层内制造一个单个α-hemolysin (aHL) 孔的芯片.
- 纳米孔的封装在两层糖凝内,以提高稳定性.
- 利用基因工程的aHL孔作为分子检测的传感元件.
主要成果:
- 封装的纳米孔芯片表现出强度,并在储存数周后保持功能.
- 该系统成功检测到异醇1,4,5-三酸盐 (IP3) 的存在.
- 这项研究展示了随机传感实际应用的重大进步.
结论:
- 一个强大的,便携式和可存储的单蛋白纳米孔芯片已经成功开发出来.
- 开发的芯片能够对像IP3这样的生物相关分子进行敏感检测.
- 这项技术对诊断和生物化学分析的各种应用具有前景.
相关概念视频
The Nucleus
The nucleus is a membrane-bound organelle that acts as a control center in a eukaryotic cell. It contains chromosomal DNA, which controls gene expression and precisely regulates the production of proteins within the cell. In contrast, the DNA inside the mitochondria and chloroplast only carries out functions that are specific to those organelles.
Arrangement of DNA within Nucleus
The regulation of gene expression inside the nucleus is dependent on many factors, including the DNA structure. The...
Arrangement of DNA within Nucleus
The regulation of gene expression inside the nucleus is dependent on many factors, including the DNA structure. The...
Genomic DNA in Eukaryotes
Eukaryotes have large genomes compared to prokaryotes. To fit their genomes into a cell, eukaryotic DNA is packaged extraordinarily tightly inside the nucleus. To achieve this, DNA is tightly wound around proteins called histones, which are packaged into nucleosomes that are joined by linker DNA and coil into chromatin fibers. Additional fibrous proteins further compact the chromatin, which is recognizable as chromosomes during certain phases of cell division.
DNA Packaging
Overview
DNA Packaging
Overview
iChip
The cultivation of environmental microorganisms has long been hindered by the inability to replicate complex native conditions in vitro. The isolation chip (iChip) addresses this limitation by facilitating the growth of previously uncultivable microorganisms through in situ incubation. Designed for high-throughput microbial cultivation, the iChip comprises hundreds of microchambers, each capable of housing a single microbial cell. These microchambers are loaded with a mixture of molten agar and...


