Massively Multiplexed Tip-Based Photochemical Lithography under Continuous Capillary Flow

被引:22
作者
Carbonell, Carlos [1 ,2 ]
Valles, Daniel J. [1 ,2 ,3 ]
Wong, Alexa M. [1 ,2 ]
Tsui, Mei Wai [1 ]
Niang, Moussa [1 ,4 ]
Braunschweig, Adam B. [1 ,2 ,3 ,5 ]
机构
[1] CUNY, Grad Ctr, Adv Sci Res Ctr, 85 St Nicholas Terrace, New York, NY 10031 USA
[2] Hunter Coll, Dept Chem, 695 Pk Ave, New York, NY 10065 USA
[3] CUNY, Grad Ctr, PhD Program Chem, 365 5th Ave, New York, NY 10016 USA
[4] Beacon Sch, 522W 44th St, New York, NY 10036 USA
[5] CUNY, Grad Ctr, PhD Program Biochem, 365 5th Ave, York, NY 10016 USA
基金
美国国家科学基金会;
关键词
POLYMER PEN LITHOGRAPHY; SCANNING PROBE LITHOGRAPHY; DIELS-ALDER REACTION; ENE CLICK CHEMISTRY; GLYCAN ARRAYS; FABRICATION; SURFACES; NANOLITHOGRAPHY; KINETICS; FORCE;
D O I
10.1016/j.chempr.2018.01.020
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Multiplexed microarrays-where different biological probes are spatially encoded onto a surface into spots with micrometer-scale diameters-have facilitated the rapid advancement of "omics'' research. Further miniaturization of feature diameters could increase the number of probes in a microarray, reduce the sample required for analysis, and decrease costs. Tip-based lithography (TBL) has gained popularity for patterning delicate, biologically active materials, but no versatile TBL-based multiplexing strategy has been devised. Here, we combine microfluidics, beam pen lithography, and photochemical surface reactions to create multiplexed arrays. For proof of concept, the thiol-ene reaction was optimized, and the reaction kinetics were analyzed. Subsequently, we created several patterns containing multiple fluorescent alkenes, where each pattern was designed to demonstrate a different capability of this instrument. This patterning strategy is a powerful approach to studying and optimizing organic reactions on surfaces and creating massively multiplexed arrays and, as such, could provide an entirely new approach for miniaturizing biochips or understanding interfacial reactivity.
引用
收藏
页码:857 / 867
页数:11
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