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Development of a MEMS 3D Stress Sensor Using Strain Engineering for Out of Plane Stress Applications
DownloadSpring 2020
This work aims to enhance the performance of a MEMS-based 3D piezoresistive sensor, which has the capability of extracting the six temperature-compensated stress components. That sensor is made of an n-type piezoresistive element that has low pressure/out-of-plane piezoresistive (PR) coefficient,...
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Development of a Multisectorial Electroactive Nanowell Platform for Selective Single-Cell Sorting and Quantification
DownloadSpring 2022
The rapid isolation of specific rare target cells is of rising importance in current targeted patient treatment plans. Common cell sorting approaches such as stream-based dielectrophoresis (DEP) based cell sorters are limited by their spatial dimensions as only a number of cell types...
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Spring 2014
The development of rapid detection techniques to be applied at the point of use, has been gaining significant attention in the recent years. Rapid techniques are important and preferable methods in healthcare and environment sector due to the advantages they offer such as low-cost and reduced...
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Fall 2011
AC Dielectrophoresis, the motion of dielectric colloidal particles in the presence of an inhomogeneous AC electric field, has been utilized in this work as a mechanism for preventing channel wall fouling due to particle deposition for a multi-component colloidal system. Both attractive and...
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Spring 2013
The sources of inducing field gradients and their implications are investigated inside the microfabricated post arrays. A parametric study is conducted to understand how the posts arrangements, distance, and size change the field and field gradients. The results provide criteria where the...
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Spring 2013
Research was undertaken into the organic semiconductors tris(8- hydroxyquinoline)aluminum (Alq3) as well as bis(8-hydroxyquinoline)zinc (Znq2) to the effect of improving achievable morphological control using an inexpensive evaporation based solution synthesis method. By varying experimental...
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Fall 2017
Capacitive micromachined ultrasound transducers (CMUTs) are a promising replacement technology for piezoelectric composite transducers, as they offer a more flexible architecture, wider signal bandwidth, and improved impedance matching between the sensor and the sensing medium. While CMUTs have...
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Spring 2013
An alternative method of manipulating fragile MEMS devices during fabrication has been developed. A specialized manual or robotic end effector utilizing a gecko inspired adhesive can replace the slow and costly manual tweezers used by the MEMS foundry Micralyne Inc. Improving the adhesive...
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Spring 2016
Organic photovoltaics offer the tantalizing possibility of inexpensive renewable energy generation. However, there are many issues that need to be solved before organic photovoltaics can see widespread use. One main issues that needs to be resolved is the relatively low efficiency of organic...
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Large-Scale Multi-Frequency Capacitive Micromachined Ultrasonic Transducer (CMUT) Arrays for Ultrasound Medical Imaging and Therapeutic Applications
DownloadSpring 2020
Ultrasonic transducers capable of operating over multiple frequency bands could have several interesting medical applications including multi-resolution multi-depth imaging for point-of-care ultrasound, imaging-therapy, super-harmonic contrast agent imaging, super-resolution imaging, image-guided...