title: Far infrared-assisted encapsulation of filter paper strips in poly(methyl methacrylate) for proteolysis.
abstract: Filter paper strips were enclosed between two poly(methyl methacrylate) plates to fabricate paper-packed channel microchips under pressure in the presence of far infrared irradiation. After the enclosed paper strip was oxidized by periodate, trypsin was covalently immobilized in them to fabricate microfluidic proteolysis bioreactor. The feasibility and performance of the unique bioreactor were demonstrated by digesting BSA and lysozyme. The results were comparable to those of conventional in-solution proteolysis while the digestion time was significantly reduced to ∼18 s. The suitability of the microfluidic paper-based bioreactors to complex proteins was demonstrated by digesting human serum.
authors.affiliation: Department of Pharmaceutical Analysis, School of Pharmacy, Fudan University, Shanghai, P. R. China.
authors.forename: Qiwen
authors.initials: Q
authors.lastname: Chen
authors.affiliation: Department of Pharmaceutical Analysis, School of Pharmacy, Fudan University, Shanghai, P. R. China.
authors.forename: Huimin
authors.initials: H
authors.lastname: Bao
authors.affiliation: Department of Pharmaceutical Analysis, School of Pharmacy, Fudan University, Shanghai, P. R. China.
authors.forename: Luyan
authors.initials: L
authors.lastname: Zhang
authors.affiliation: Department of Pharmaceutical Analysis, School of Pharmacy, Fudan University, Shanghai, P. R. China.
authors.forename: Gang
authors.initials: G
authors.lastname: Chen
mesh_terms: D019149:Bioreactors; D001798:Blood Proteins / Q000032:analysis / Q000737:chemistry / Q000378:metabolism; D004800:Enzymes, Immobilized / Q000737:chemistry / Q000378:metabolism*; D005240:Feasibility Studies; D006801:Humans; D007259:Infrared Rays; D046210:Microfluidic Analytical Techniques / Q000379:methods*; D010209:Paper; D019904:Polymethyl Methacrylate / Q000737:chemistry*; D059748:Proteolysis; D014357:Trypsin / Q000737:chemistry / Q000378:metabolism
chemical_list: D001798:Blood Proteins; D004800:Enzymes, Immobilized; D019904:Polymethyl Methacrylate; D014357:Trypsin
keywords: Filter paper; Microfluidic bioreactor; Poly(methyl methacrylate); Proteolysis; Trypsin