title: A concentration gradient generator on a paper-based microfluidic chip coupled with cell culture microarray for high-throughput drug screening.
abstract: Inspired by the paper platforms for 3-D cell culture, a paper-based microfluidic device containing drug concentration gradient was designed and constructed for investigating cell response to drugs based on high throughput analysis. This drug gradient generator was applied to generate concentration gradients of doxorubicin (DOX) as the model drug. HeLa cells encapsulated in collagen hydrogel were incubated in the device reservoirs to evaluate the cell viability based on the controlled release of DOX spatially. It was demonstrated that drug diffusion through the paper fibers created a gradient of drug concentration, which influenced cell viability. This drug screening platform has a great opportunity to be applied for drug discovery and diagnostic studies with simultaneous and parallel tests of drugs under various gradient concentrations.
authors: Department of Laboratory Medicine, Xiangyang Central Hospital, 136 Jingzhou Street, Xiangyang, Hubei, 441021, China.
authors: Bo
authors: B
authors: Hong
authors: School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore.|Faculty of Materials and Energy, Institute for Clean Energy and Advanced Materials, Southwest University, 2 Tiansheng Road, Chongqing, Beibei, 400715, China.
authors: Peng
authors: P
authors: Xue
authors: School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore.
authors: Yafeng
authors: Y
authors: Wu
authors: School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore.
authors: Jingnan
authors: J
authors: Bao
authors: School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore.
authors: Yon Jin
authors: YJ
authors: Chuah
authors: Faculty of Materials and Energy, Institute for Clean Energy and Advanced Materials, Southwest University, 2 Tiansheng Road, Chongqing, Beibei, 400715, China. yjkang@swu.edu.cn.
authors: Yuejun
authors: Y
authors: Kang
mesh_terms: D018929:Cell Culture Techniques / Q000295:instrumentation / Q000379:methods; D018914:Cells, Immobilized; D004317:Doxorubicin / Q000737:chemistry / Q000494:pharmacology*; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D010209:Paper; D046888:Tissue Array Analysis / Q000295:instrumentation / Q000379:methods
chemical_list: D004317:Doxorubicin
keywords: 3-D cell culture; Drug screening; Gradient concentration; Paper-based microfluidics