Precision pipetting and crack-free colloidal assembly
Name
1117710155-MIT.pdf
Size
13.64 MB
Format
Adobe PDF
Checksum (MD5)
edf4efce57bb4fecaae539d53b0ff3c8
Author(s)
Beroz, Justin(Justin Douglas)
Advisor(s)
A. John Hart.
Date Issued
2019
Publisher
Massachusetts Institute of Technology
Abstract
Applications involving millimeter and micrometer scale liquid handling combine precision instrumentation and capillary-driven fluid mechanics. This thesis develops two such applications. First, a design for a single handheld pipette that may draw and dispense liquid volumes spanning the range of an entire suite of current commercial pipettes is presented. The design, construction and validation of a proof-of-concept prototype device for this universal micropipette concept is reported, along with practical considerations for implementation and possible commercialization. Second, a direct-write method to build freestanding colloidal structures via capillary-driven self-assembly from a needle is reported. A scaling law is derived that governs the rate of assembly, as well as a criterion for the initiation of cracks, thereby explaining how to build crack-free structures over a wide range of particle sizes.
Description
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2019
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 137-139).
Subjects
Mechanical Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
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