磁共振波谱及成像技术在纳米尺度物质生物效应研究中的应用

Application of magnetic resonance imaging and spectroscopy in studying the biological effects of manufactured nanoparticles

纳米尺度物质的生物效应研究是近年来在纳米科技发展过程中派生出来的一个崭新的、发展很快的且多学科高度交叉的领域,需要把纳米科学、物理学、化学以及生物医学等多学科的研究手段结合起来,进行综合研究.核磁共振波谱与成像,作为一种原位、无损、动态、实时、多信息的检测手段,在此领域的研究中将发挥不可或缺的重要作用.文章分3个方面简要介绍核磁共振波谱与成像技术在纳米尺度物质生物效应研究中的应用:(1)纳米尺度物质在生物组织及个体内的检测与分析;(2)纳米尺度物质与生物大分子相互作用的核磁共振波谱研究;(3)纳米尺度物质生物效应的核磁共振代谢组学研究.

With the rapid development of nanoscience and nanotechnology in recent years, growing research interest and efforts have been directed to study the biological effects of manufactured nanoparticles and substances alike. Despite the fact that significant progress has been made, this is still largely an uncharted field. Any advances in this field would certainly require thorough multi-disciplinary collaboration, in which the expertise and tools in nanoscience/nanotechnology, physics, chemistry and biomedicine have to be combined. Due to their wide range of applications in physics, chemistry and biomedicine, magnetic resonance （MR） imaging and spectroscopy are among the most important and powerful research tools currently in use, mainly because these techniques can be used in situ and noninvasively to acquire dynamic and real - time information in various sampies ranging from protein solution to the human brain. In this paper, the application of MR imaging and spec- troscopy in studying the biological effects of manufactured nanoparticles is discussed. It is expected that these techniques will play important roles in 1 ） detecting the presence of nanoparticles in biological tissues and in vivo, 2） studying the interactions between the nanoparticles and biomolecules and 3 ） investigating the metabo- nomic aspect of the biological effects of nanoparticles.