Explanipedia

Development of a novel therapy for systolic heart failure Open

Corey Pollock, Xunzhang Wang, Hussam Alsaraji, Joseph Menassa, George W. Mbogo , et al. · 2025

Heart failure presents a critical health challenge with a 5-year mortality rate of up to 50%. Conventional treatments often lead to bradycardia or hypotension due to their impact on patient hemodynamics. To address this issue, we utilized …

The Integration of Optical Stimulation in a Mechanically Dynamic Cell Culture Substrate Open

Matthias Imboden, Sophia Chen, Olexandr Gudozhnik, Corey Pollock, Josh Javor , et al. · 2022

A cell culture well with integrated mechanical and optical stimulation is presented. This is achieved by combining dielectric elastomer soft actuators, also known as artificial muscles, and a varifocal micro-electromechanical mirror that c…

TLR4: the fall guy in sepsis? Open

Joseph Menassa, Christina Nedeva, Corey Pollock, Hamsa Puthalakath · 2020

Sepsis and its impact on human health can be traced back to 1000 BC and continues to be a major health burden today. It causes about 11 million deaths world-wide of which, more than a third are due to neonatal sepsis. There is no effective…

100 pT/cm single-point MEMS magnetic gradiometer from a commercial accelerometer Open

Josh Javor, Alexander Stange, Corey Pollock, Nicholas E. Fuhr, D. J. Bishop · 2020

Open loop control theory algorithms for high-speed 3D MEMS optical switches Open

Corey Pollock, F. Pardo, Matthias Imboden, D. J. Bishop · 2019

There is a world-wide push to create the next-generation all-optical transmission and switching technologies for exascale data centers. In this paper we focus on the switching fabrics. Many different types of 2D architectures are being exp…

100pTcm Sensitive MEMS Resonant Magnetometer from a Commercial Accelerometer Open

Josh Javor, Alexander Stange, Corey Pollock, Nicholas E. Fuhr, D. J. Bishop · 2019

Magnetic sensing is present in our everyday interactions with consumer electronics, and also demonstrates potential for measurement of extremely weak biomagnetic fields, such as those of the heart and brain. In this work, we leverage the m…

100pTcm Sensitive MEMS Resonant Magnetometer from a Commercial\n Accelerometer Open

Josh Javor, Alexander Stange, Corey Pollock, Nicholas E. Fuhr, D. J. Bishop · 2019

Magnetic sensing is present in our everyday interactions with consumer\nelectronics, and also demonstrates potential for measurement of extremely weak\nbiomagnetic fields, such as those of the heart and brain. In this work, we\nleverage th…

Extreme angle, tip-tilt MEMS micromirror enabling full hemispheric, quasi-static optical coverage Open

Corey Pollock, Josh Javor, Alexander Stange, Lawrence Barrett, D. J. Bishop · 2019

Beam steering is essential for a variety of optical applications such as communication, LIDAR, and imaging. Microelectromechanical system (MEMS) mirrors are an effective method of achieving modest speeds and angular range at low cost. Typi…

Can open-loop control algorithms solve the data center switching problem? Open

Corey Pollock, Matthias Imboden, F. Pardo, D. J. Bishop · 2019

There is a world-wide push to create the next generation all-optical transmission and switching technologies for exascale data centers. In this paper we focus on the switching fabrics. Many different types of 2D architectures are being exp…

PWM as a Low Cost Method for the Analog Control of MEMS Devices Open

Corey Pollock, Lawrence Barrett, Pablo G. del Corro, Alexander Stange, Thomas G. Bifano , et al. · 2019

In this paper, we discuss the use of pulse width modulation (PWM) to control analog MEMS devices. We achieve a precise linear analog control of MEMS by applying PWM signal with a frequency well above the system's mechanical natural frequen…

MEMS mirrors and controls for indoor optical wireless communication Open

Corey Pollock · 2019

With the rise of the Internet of Things, more and more devices are being connected to the internet, driving up the demand for wireless connectivity. In addition to advancing the current RF technology, optical communication, specifically IR…

A Large Range of Motion 3D MEMS Scanner With Five Degrees of Freedom Open

Lawrence Barrett, Thomas Stark, Jeremy Reeves, Richard Lally, Alexander Stange , et al. · 2019

Here, we discuss a novel, mixed mode 3D XYZ scanner built within a single foundry process. The device has a large range of motion in X, Y, and Z (14.1 mu m in X and Y and 97.9 mu m in Z) and can also rotate about two axes (7.4 degrees), ma…

Modeling and Thermal Metrology of Thermally Isolated MEMS Electrothermal Actuators for Strain Engineering of 2D Materials Open

Mounika Vutukuru, Jason Christopher, Corey Pollock, David J. Bishop, Anna K. Swan · 2018

We present electrothermal microelectromechanical (MEMS) actuators as a practical platform for straining 2D materials. The advantages of the electrothermal actuator is its high output force and displacement for low input voltage, but its dr…

Modeling and Thermal Metrology of Thermally Isolated MEMS Electrothermal\n Actuators for Strain Engineering of 2D Materials Open

Mounika Vutukuru, Jason Christopher, Corey Pollock, David J. Bishop, Anna K. Swan · 2018

We present electrothermal microelectromechanical (MEMS) actuators as a\npractical platform for straining 2D materials. The advantages of the\nelectrothermal actuator is its high output force and displacement for low input\nvoltage, but its…

PWM as a Low Cost Method for the Analog Control of MEMS Devices Open

Corey Pollock, Lawrence Barrett, Pablo G. del Corro, Alexander Stange, Thomas G. Bifano , et al. · 2018

In this paper we discuss the use of pulse width modulation (PWM) to control analog MEMS devices. We achieve precise linear analog control of MEMS by applying a PWM signal with a frequency well above the system's mechanical natural frequenc…

Engineered PWM Drives for Achieving Rapid Step and Settle Times for MEMS Actuation Open

Corey Pollock, Matthias Imboden, Alexander Stange, Josh Javor, Koshik Mahapatra , et al. · 2018

Microelectromechanical systems (MEMS) provide engineers with a rich palette of technical solutions to a wide range of actuation and sensing challenges. MEMS devices are low cost, easily integrated with sense and drive electronics, are robu…

Beam shaping with tip-tilt varifocal mirror for indoor optical wireless communication Open

Corey Pollock, Jessica Morrison, Matthias Imboden, Thomas D. C. Little, D. J. Bishop · 2017

MEMS mirrors are currently used in many applications to steer beams of light. An area of continued research is developing mirrors with varifocal capability that allows the beam to be shaped and focused. In this work, we study the varifocal…

Corey Pollock YOU? Author Swipe