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A Spiral-Helix (3D) Tubing Array That Ensures Ultrahigh-Throughput Single-Cell Sampling by Xing Wei; Xuan Zhang; Rui Guo; Ming-Li Chen; Ting Yang; Zhang-Run Xu; Jian-Hua Wang is a Chemistry article available to read on EtoBox.

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ICP-MS is powerful in evaluating elemental species at the single-cell level, where high throughput/efficiency/precision are the keys for achieving statistically significant information based on massive data. We report an ultrahigh throughput single-cell sampling system, consisting of a 3D spiral-helix tubing array to facilitate single-cell focusing into an orderly flow by inertial lift force and Dean drag force. The spiral-helix array ensures a superb single-cell sampling rate of 40,000 cells min -1 at a favorable temporal-spatial resolution of 41.55±17.46 μm (distance between adjacent cells) or 0.97±0.41 ms (time-interval between adjacent cells). With a laboratory made nebulization device, a cell measurement efficiency up to 42.1±7.2% is achieved in ICP-MS assay. Analysis of Au nanoparticles (AuNPs) in living K562 cells after incubation illustrates obvious diversification of AuNPs among cells. The ultrahigh throughput and cell measurement efficiency generate massive data on single-cell assay, makes statistical analysis more comprehensive, enables interpreting extremely subtle differences among individual cells.

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Author

Xing Wei; Xuan Zhang; Rui Guo; Ming-Li Chen; Ting Yang; Zhang-Run Xu; Jian-Hua Wang

Publisher

American Chemical Society; American Chemical Society (ACS) (ISSN 0003-2700)

Published

2019

Language

EN

Field

Chemistry (Physical Sciences)