title: A simple cellulose acetate membrane-based small lanes technique for protein electrophoresis.
abstract: Combining electrophoresis with a cellulose acetate membrane-based technique, we developed a simple and low-cost method, named cellulose acetate membrane-based small lanes (CASL), for protein electrophoresis. A home-made capillary plotter controlled by a 3D moving stage was used to create milli-to-micro channels by printing poly(dimethylsiloxane) on to a hydrophilic cellulose acetate membrane. In the hydrophilic channels, 5 nL protein mixture was separated on the basis of electro-migration under an electric field. Compared with polyacrylamide gel electrophoresis (PAGE), CASL resulted in higher protein signal intensity for separation of mixtures containing the same mass of protein. The platform was easily fabricated at low cost (approx. $0.005 for each 1-mm-wide channel), and separation of three protein mixtures was completed in 15 min. Both electrophoresis time and potential affected the separation. Rather than chromatographic separation, this method accomplished application of microchannel techniques for cellulose acetate membrane-based protein electrophoresis. It has potential in proteomic analysis, especially for rapid, low-cost, and low-volume sample analysis in clinical diagnosis.
authors: College of Chemistry, Beijing Normal University, Beijing, China.
authors: Na
authors: N
authors: Na
authors: Tingting
authors: T
authors: Liu
authors: Xiaojun
authors: X
authors: Yang
authors: Binjie
authors: B
authors: Sun
authors: Jenny
authors: J
authors: Ouyang
authors: Jin
authors: J
authors: Ouyang
mesh_terms: D002482:Cellulose / Q000031:analogs & derivatives* / Q000737:chemistry; D004129:Dimethylpolysiloxanes / Q000737:chemistry; D004588:Electrophoresis, Cellulose Acetate / Q000295:instrumentation / Q000379:methods*; D004591:Electrophoresis, Polyacrylamide Gel; D006801:Humans; D057927:Hydrophobic and Hydrophilic Interactions; D007074:Immunoglobulin G / Q000737:chemistry; D057230:Limit of Detection; D008567:Membranes, Artificial; D046210:Microfluidic Analytical Techniques / Q000295:instrumentation / Q000379:methods*; D008970:Molecular Weight; D012709:Serum Albumin / Q000737:chemistry; D014168:Transferrin / Q000737:chemistry
chemical_list: D004129:Dimethylpolysiloxanes; D007074:Immunoglobulin G; D008567:Membranes, Artificial; D012709:Serum Albumin; D014168:Transferrin; C005062:acetylcellulose; C013830:baysilon; D002482:Cellulose