Method and apparatus for chemical and biochemical reactions using photo-generated reagents
申请人:THE UNIVERSITY OF HOUSTON
公开号:EP1258288A2
公开(公告)日:2002-11-20
A method and apparatus for performing chemical and biochemical reactions in solution using in situ generated photo-products as reagent or co-reagent. Specifically, the method and apparatus have applications in parallel synthesis of molecular sequence arrays on solid surfaces. There is provided an apparatus for performing light controlled reactions. One of the applications of the apparatus is to control reactions on a solid surface containing a plurality of isolated reaction sites, such as wells (the reactor). Light patterns for effecting the reactions are generated using a computer and a digital optical projector (the optical module). Patterned light is projected onto specific sites on the reactor, where light controlled reactions occur. A preferred application provides the in situ generation of chemical/biochemical reagents that are used in the subsequent chemical and biochemical reactions in certain selected sites among the many possible sites present. One aspect of the claimed invention is to change solution pH by photo-generation of acid or bases in a controlled fashion. Another preferred application is the parallel synthesis of biopolymers, such as oligonucleotides and peptides, wherein the method and apparatus are used for selective de protection or coupling reactions.
一种利用原位生成的光产物作为试剂或辅助试剂在溶液中进行化学和生物化学反应的方法和装置。具体而言,该方法和装置可应用于固体表面分子序列阵列的平行合成。本发明提供了一种用于执行光控反应的装置。该装置的应用之一是控制固体表面上的反应,固体表面包含多个孤立的反应位点,如孔(反应器)。利用计算机和数字光学投影仪(光学模块)生成实现反应的光图案。图案光被投射到反应器上的特定位置,在这些位置上发生光控反应。一种优选的应用方法是现场生成化学/生化试剂,这些试剂用于在许多可能存在的部位中选定的某些部位进行后续的化学和生化反应。本发明的一个方面是以受控方式通过光生成酸或碱来改变溶液的 pH 值。另一个优选应用是生物聚合物(如寡核苷酸和肽)的平行合成,其中该方法和装置用于选择性去保护或偶联反应。