PDMS微孔阵列的简单制备及其在细胞球培养方面的应用

来源 :中国化学会第十二届全国微全分析系统学术会议、第七届全国微纳尺度生物分离分析学术会议、第七届国际微流控学学术论坛 | 被引量 : 0次 | 上传用户:ff303
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  目前,二维细胞培养由于操作简单,被广泛应用于药物筛选研究的细胞实验。然而,近年来的研究表明,二维细胞模型难以还原体内细胞与细胞及细胞外基质之间的相互作用[1],生理环境下体内组织的三维细胞构架[2],以及营养物和代谢物浓度梯度,极大程度上限制了药物的临床转化效率。虽然三维多细胞球模型能模拟体内细胞生长环境,但是操作过程繁琐、需要特殊仪器设备,尚不能大规模推广应用。本研究提出了利用微球模板大面积制备球腔型微孔阵列的方法,并用其成功实现了尺寸均一、细胞活力高HepG2 肿瘤球的高通量生成(图1 所示)。在微孔阵列的制备过程中,可通过使用不同粒径的模板微球简单调节微孔大小,通过控制紫外胶层厚度精准控制微孔阵列结构。所以,在细胞培养的过程中,能通过微孔阵列的尺寸和结构,有效控制三维多细胞球的大小,进而实现按需培养和生成。本研究为高通量培养适用于药物筛选的三维多细胞球提供了一种简单、高效、廉价的新方法。
其他文献
INTRODUCTION Photonic crystals(PCs)are dielectric materials with periodic structure,which possess the capability of controlling and manipulating the propagation path of photons [1].Especially due to t
Vapor diffusion is the most common method to grow protein crystals suitable for X-ray diffraction analysis.In the method,small droplets containing protein and precipitant are allowed to equilibrate by
INTRODUCTION The Dakin and Baeyer-Villiger(BV)reactions are classic synthetic approaches in organic chemistry for the oxidation of carbonyl groups.They are are used extensively in various fields,parti
INTRODUCTION Nerve regeneration after tissue injury or disease is a major challenge in neurology.Therefore,it is of great significance to search for regeneration factors that promote nerve cell repair
Recently,the intersection of disciplines has attracted more and more attention.Fluorescence detection technology has advantages in detection and imaging technology.On the basis of this,combined with t
A novel artificial receptor(C84H175N14O35 7+)with similar functions of mitochondrial ADP/ATP carrier was synthesized and embedded in α-hemolysin nanopore to recognize and detect ATP,ADP and AMP(ANPs)s
INTRODUCTION This work presents a three-dimensional(3D)model to study the rotation and dissection of budding yeast trapped in a microfluidic structure.An 8-μm-height bowl-shaped structure with an orif
Fatty acids(FAs)are the most fundamental lipid class in living organisms and play critical roles in the formation of cell membranes,energy storage and cell-to-cell signaling.Many researches also have
Three-dimensional cell spheroid cultures have become increasingly popular as drug screening platforms.One of the common methods for spheroid forming is the "hanging drop" technique,which offer an acce
惯性微流控芯片技术具有很多独特的优势,比如可以连续有效的处理实验进程,无需施加任何耗能的外力场即能够完成流体或粒子的精确操控等。然而,现有的这些技术仍然存在诸多缺点,例如鞘液流的高度消耗性、操作程序的高度繁琐性以及芯片制备的高度复杂性等。本研究以现有惯性微流控技术为基础,通过引入微结构设计构建出超低高宽比螺旋管道,并实现粒子聚焦和血浆分离应用。该芯片对比其他惯性微流操控方法具有许多优点。例如,芯片