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oai:www.ideals.illinois.edu:2142/83885 2023-07-11 col_2142_5131 col_2142_14787 com_2142_5130 com_2142_9630 com_2142_234

Aluru, N.R. Jin, Xiaozhong 2015-09-25T21:12:35Z 2015-09-25T21:12:35Z 10000-01-01 2007 2007 After the theoretical study of the meshless methods, the FCM and boundary cloud method (BCM) were applied to solve the fluid flow in the MEMS devices. Combining the fluid flow module with the solver for the Poisson and Nernst-Planck (PNP) equations, a tool for the simulation of ion transport in the framework of the meshless methods has been developed. Furthermore, this tool has been used to study the electrokinetic transport in a hybrid micro-nanofluidic interconnect device, which is capable of controlling analyte transfer between the microchannels through a nanochannel under rest, injection and recovery stages of operation by varying the applied potential bias. During the injection stage, the phenomenon of ion accumulation and depletion is observed at the micro-nano interface region. Net volume charge in the depletion region gives rise to nonlinear electrokinetic transport during the recovery stage due to induced pressure, induced electroosmotic flow of the second kind and complex flow circulations. Analytical expressions derived for ion current variation are in agreement with the simulated results. In the presence of multiple accumulation or depletion regions, a hybrid micro-nano device can be designed to function as a logic gate. Made available in DSpace on 2015-09-25T21:12:35Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3290262.pdf: 4376517 bytes, checksum: 28da47a6ef37975c1edcaeb84250b391 (MD5) Previous issue date: 2007 Embargo set by: Seth Robbins for item 85166 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 167 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2007. http://hdl.handle.net/2142/83885 (MiAaPQ)AAI3290262 eng Engineering, Electronics and Electrical Collocation Based Meshless Methods for Microelectromechanical Systems text Mechanical Engineering Mechanical Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.