Index Catalog // ScholarsArchive@OSU

From electrophoresis to dielectrophoresis: designing, fabricating, and evaluating an electroformed ratchet type microfluidic dielectrophoresis device

Creator:: Gonzalez, Carlos F.
Abstract:: Dielectrophoresis (DEP) is a separation method in which a non-uniform electric field is used to induce a dipole moment in a suspended particle. If the polarization of the particle is greater than that of the suspending medium, the particle will move towards the region of higher field strength (positive DEP);...
Resource Type:: Dissertation
Full Text:: 10, 2007 Commencement June 2008 Doctor of Philosophy dissertation of Carlos F. Gonzalez

Carbon Nanodots as Biolabels for Fluorescence Immunoassays

Creator:: Wu, Yuanyuan
Abstract:: There has been a tremendous growth in interest in carbon nanodots (C-dots) in the past several years. As a nascent nanomaterial, C-dots have shown great promise in applications that benefit from their superior water dispersibility, low toxicity, non-blinking fluorescent output, chemical and biological compatibility, ease of functionalization and resistance to...
Resource Type:: Dissertation
Full Text:: Doctor of Philosophy Presented March 7, 2016 Commencement June 2016 Doctor of

Design and Fabrication of a Polymeric Microfluidic Device for Automated

Creator:: Warner, Kelsie E.
Abstract:: Gene synthesis is an important tool in molecular biology. However, the current bench-top method of gene synthesis is a costly, time-intensive and reagent-consuming process. Lab-on-chip technology has many benefits over current bench top methods. Microchips consume smaller reagent volumes, are reusable and less expensive to make. This thesis explores the...
Resource Type:: Honors College Thesis
Full Text:: .; Warmack, R.J.; Ramsey, J.M. Anal. Chem. 1994, 66, 1107-1113. [4] Lee, G.B.; Chen, S.H.; Huang, G.R

Centrifugal Partition Chromatography, Microfabrication, and a Smartphone-based Detection Platform : Analytical Chemistry from Preparative-scale Separation to Micro-scale Analysis

Creator:: Boonloed, Anukul
Abstract:: Analytical chemistry is an area of chemistry primarily focused on the study and use of instruments for separation, identification, and quantification of an analyte of interest. Specifically, separation science within analytical chemistry often refers to the process of dividing mixtures into their small component parts based on differences in their...
Resource Type:: Dissertation
Full Text:: June 2017 Doctor of Philosophy dissertation of Anukul Boonloed presented on March 16, 2017

Functionalization of carbon nanotubes for effective biosensing and potential biomedical applications

Creator:: Adenuga, Adeniyi A.
Abstract:: Since their discovery in the 1990s, the great potential of carbon nanotubes (CNTs) has made them a focus of many research endeavors, including their application as components of biosensors. The inherent chemical "inertness" of CNTs makes their application to biosensing a challenge. It is necessary to "decorate" their surfaces to...
Resource Type:: Dissertation
Full Text:: , 2013 Commencement June 2014 Doctor of Philosophy dissertation of Adeniyi A. Adenuga

Monolithic sorbents for microscale separations

Creator:: Doneanu, Angela
Abstract:: Over the last decade, the miniaturization of analytical systems has become an increasingly important and interesting research area. Miniaturized systems offer many advantages, including reduced reagent and sample consumption, shorter analysis times, portability and disposability. This dissertation describes novel approaches in this direction, focusing on two areas: the miniaturization of...
Resource Type:: Dissertation
Full Text:: requirements for the degree of Doctor of Philosophy Presented on April 28, 2005 Commencement June 2005

Detection techniques for biomolecules using semi-conductor nanocrystals and magnetic beads as labels

Creator:: Chatterjee, Esha
Abstract:: Continued interest in the development of miniaturized and portable analytical platforms necessitates the exploration of sensitive methods for the detection of trace analytes. Nanomaterials, on account of their unique physical and chemical properties, are not only able to overcome many limitations of traditional detection reagents but also enable the exploration...
Resource Type:: Dissertation
Full Text:: Doctor of Philosophy Presented November 7, 2011 Commencement June 2012

Laser patterned porous-media microfluidic analytical devices : fabrication methods and applications in bioassays

Creator:: Sumantakul, Saichon
Abstract:: The concept of reducing laboratory operations into microfluidic devices has been an attractive area of research for several decades. Due to several advantages of porous-media microfluidic devices including low mass, portability, power-free fluid transport, and the ability to store dried reagents in the porous structures, these devices show great promise...
Resource Type:: Dissertation
Full Text:: June 2023 Doctor of Philosophy dissertation of Saichon Sumantakul presented on May 10, 2023

Magnetic particles for selective extraction of trace analytes in microfluidic devices

Creator:: Tennico, Yolanda H.
Abstract:: The development of micro total analysis systems (µTAS), also called “lab-on-a-chip”, or microfluidic analysis systems, is presented in this dissertation. Various research areas, covering subjects from magnetic particles synthesis to novel microchip fabrication techniques, are explored to develop a lab-on-a-chip system capable of performing magnetic bead-based bioassays. These devices are...
Resource Type:: Dissertation
Full Text:: Doctor of Philosophy Presented February 10, 2010 Commencement June 2010 Doctor of

Organic-solvent resistant ultrafiltration and nanofiltration membrane modules for separation and purification of nanoparticles

Creator:: Kim, Taehyeong
Abstract:: The intriguing size- and shape dependent properties of nanoparticles have garnered recent attention in many science and engineering areas. When the particle size is in the nanometer size range, the material exhibits very different properties such as surface plasmon resonance (of gold nanoparticles) and superparamagnetism (of iron oxide nanoparticles). The...
Resource Type:: Dissertation
Full Text:: Commencement June 2012 Doctor of Philosophy dissertation of Taehyeong Kim presented on November 3, 2011

ScholarsArchive@OSU

From electrophoresis to dielectrophoresis: designing, fabricating, and evaluating an electroformed ratchet type microfluidic dielectrophoresis device

Carbon Nanodots as Biolabels for Fluorescence Immunoassays

Design and Fabrication of a Polymeric Microfluidic Device for Automated

Centrifugal Partition Chromatography, Microfabrication, and a Smartphone-based Detection Platform : Analytical Chemistry from Preparative-scale Separation to Micro-scale Analysis

Functionalization of carbon nanotubes for effective biosensing and potential biomedical applications

Monolithic sorbents for microscale separations

Detection techniques for biomolecules using semi-conductor nanocrystals and magnetic beads as labels

Laser patterned porous-media microfluidic analytical devices : fabrication methods and applications in bioassays

Magnetic particles for selective extraction of trace analytes in microfluidic devices

Organic-solvent resistant ultrafiltration and nanofiltration membrane modules for separation and purification of nanoparticles

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