博文

目前显示的是 十二月, 2018的博文

The Darling of the New Century: Nanoparticles

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  Do you understand these important concepts? Nanoparticles  refer to particles having a particle size between 1 and 100 nm, also known as ultrafine particles. They are in an over-extension between macroscopic objects and between micro-systems and macro-systems. They are a group of a small number of atoms or molecules, so they are neither a typical microscopic system nor an atypical macroscopic system. The basic meaning of nanoscience and technology  is to manipulate and arrange atomic and molecular innovations directly or indirectly in the nanometer category for making new substances. Nanomedicine  is an emerging edge interdisciplinary subject based on nanoscience or medicine. Its basic meaning refers to the use of nanotechnology theories and methods to carry out a new discipline of medical research and clinical treatment, which is mainly related to medicine in two aspects. Combination: First, the detection technology of disease; second, the treatment te...

Separation of Nucleic Acids

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Abstract : The separation and purification of nucleic acids is a basic technology in biochemistry and molecular biology. As molecular biology techniques are widely used in biology, medicine, and related fields, nucleic acid separation and purification technologies have been further developed. The emergence of various new methods and improved traditional classical methods and commercial reagent methods has greatly promoted the development of molecular biology. Traditional nucleic acid separation requires ethanol precipitation, phenol/chloroform extraction, centrifugation, and column chromatography. The operation is cumbersome, time-consuming and labor-intensive, and it is difficult to achieve automatic separation and purification. Glass powder or glass beads have proven to be an effective nucleic acid adsorbent. In high salt solutions, nucleic acids can be adsorbed onto a glass substrate to facilitate separation of nucleic acids. In addition, surface functionalized polymeric magnetic ...