A5063960494- Analytical Chemistry and Sensors
- Conducting polymers and applications
- Advanced Sensor and Energy Harvesting Materials
- Force Microscopy Techniques and Applications
- Electrochemical Analysis and Applications
- Advanced Materials and Mechanics
- Plant and Biological Electrophysiology Studies
- Nanopore and Nanochannel Transport Studies
- Lipid Membrane Structure and Behavior
- Fuel Cells and Related Materials
- Smart Materials for Construction
- Advanced MEMS and NEMS Technologies
- Advanced battery technologies research
- Supercapacitor Materials and Fabrication
- Neuroscience and Neural Engineering
- Structural Health Monitoring Techniques
- Advancements in Transdermal Drug Delivery
- Plant Molecular Biology Research
- Acoustic Wave Resonator Technologies
- Advanced Fiber Optic Sensors
- Dielectric materials and actuators
- Polymer composites and self-healing
- Adhesion, Friction, and Surface Interactions
- Innovative Energy Harvesting Technologies
- Diatoms and Algae Research
The Ohio State University
2013-2022
Virginia Commonwealth University
2009-2016
Saarland University
2013
Missile Defense Agency
2010
Virginia Tech
2004-2010
U.S. Army Combat Capabilities Development Command Aviation & Missile Center
2010
Office of Naval Research
2010
NextGen Aeronautics (United States)
2010
University of California, Santa Barbara
2010
University of California, Los Angeles
2010
Light emission from zinc sulfide phosphors during elastic loading (elastico-mechanoluminescence, or EML) is characterized for application in structural health monitoring. Micron-sized EML particles are dispersed an elastomeric matrix characterization experiments. Numerical models and experimental investigations combined to arrive at a correlation between intensity average stress acting on phosphor particles. A maximum luminance of 25 cd/m 2 observed composites with 6.25:3 phosphor–matrix...
Self-healing materials science has seen significant advances in the last decade. Recent efforts have demonstrated healing polymeric through chemical reaction, thermal treatment, and ultraviolet irradiation. The existing technology for aforementioned mechanisms produces an irreversible change material makes it unsuitable subsequent cycles. To overcome these disadvantages, we demonstrate a new composite self-healing made from ionomer (Surlyn) carbon fiber that can sustain damage...
We demonstrate controlled ion transport through PPy(DBS) membranes formed on porous substrates by varying its electrochemical oxidation state, and application as a smart membrane separator in energy storage devices.
In the host-microbe microenvironment, bioelectrical factors influence microbes and hosts as well interactions. This article discusses relevant mechanistic underpinnings of this novel paradigm. It also addresses how such knowledge may be leveraged to develop electroceutical solutions manage biofilm infection.
Unilamellar vesicles are for the first time used as soft-templates in electropolymerization of polypyrrole membranes with nanoscale organization and mesoscale order. The dimensions (∼100–1000 nm) templates conditions lead to formation highly organized shells (10–25 nm thick) that contiguous through bulk membrane. These templated phospholipid referred 'biotemplated' technique 'biotemplating' owing phospholipid's role fundamental building block all cell membranes. Biotemplated demonstrate...
This paper investigates nanostructured morphology-dependent charge storage and coupled mechanical strain of polypyrrole membranes doped with dodecylbenzenesulfonate (PPy(DBS)).
Biological systems such as plants produce large deformations due to the conversion of chemical energy mechanical energy. These chemomechanical conversions are controlled by transport charge and fluid across permeable membranes within cellular structure biological system. In this paper we analyze potential for using mechanisms materials with controllable actuation properties. An energetics analysis is performed quantify relationship between introduction in form ATP resulting osmotic pressure...
Abstract Potassium‐Oxygen (K−O 2 ) batteries have a high theoretical energy density of 935 Wh kg −1 due to single‐electron redox process in the reversible formation potassium superoxide. Despite this advantage, standard K−O limited cycle‐life (5‐10) molecular oxygen crossover from cathode anode, resulting side reactions forming undesired superoxide on anode. In article, battery fabricated with functionally‐graded (FGC) architecture is presented address at cathode. This lasts >125 cycles...
Plants have the ability to move fluids using chemical energy available with bio-fuels. The released by cleavage of a terminal phosphate ion during hydrolysis bio-fuel assists transport ions and in cellular homeostasis. device discussed this paper uses protein pumps cultured from plant cells fluid across membrane barrier for controllable transport. This demonstrates reconstitute pump extracted cell on supported bilayer lipid (BLM) use expending adenosine triphoshate (ATP). AtSUT4 used...
This article presents a novel technique to quantify the kinetics of faradaic response in polypyrrole (doped with dodecylbenzenesulfonate) (PPy(DBS)) and its application developing cation sensor. is based on analysis impedance/admittance transfer function PPy(DBS) representation reduction chronoameprometric using system poles residues. The results presented this paper demonstrate that pole an intrinsic quantity residue corresponding extrinsic quantity. for redox-step potential dependent...
Plants have the ability to develop large mechanical force from chemical energy available with bio-fuels. The released by cleavage of a terminal phosphate ion during hydrolysis bio-fuel assists transport ions and fluids in cellular homeostasis. Materials that pressure hence strain similar response plants an external stimuli are classified as nastic materials. Calculations for controlled actuation active material inspired biological mechanism demonstrated feasibility developing such densities...
Biological ion transport processes in proteins have inspired the development of bio-sensors, actuators, photoelectric, and chemoelectric energy conversion devices. These bio-inspired devices use through a protein energized by biochemical reactions protein’s sub-units to perform their engineering function. In an effort advance biological synthetic systems, chemoelectrical device is demonstrated this article that uses hydrolysis adenosine triphosphate (ATP) ATPase enzyme generate electrical...
Ionic electroactive polymers and bioderived materials have been independently demonstrated as actuators, sensors energy harvesting devices. In an polymer, the applied electric field between cathode anode drives ion transport electrodes, impregnated electrolyte bulk of polymer to generate force displacement. Similarly, in a material input stimulus (electrical, chemoelectrical or chemical) across protein bilayer lipid membrane (BLM) displaces ions barrier enables sensing actuation functions....
In the Calvin cycle of photosynthesis, ribulose-1,5-bisphosphate carboxylase/oxygenase (RubisCO) catalyzes conversion ribulose 1,5-bisphosphate to 3-phosphoglyceric acid (3-PGA) while incorporating atmospheric CO2 into an organic molecule. Thus, RubisCO is nature's CO2-sequestering enzyme that present in chloroplasts. As effort mitigate climate change, biomimetic carbon fixation technologies have been developed through immobilization nanostructures form nanostructure–RubisCO complexes. The...
In this article, the saturation kinetics model that describes chronoamperometric response of PPy(DBS) in our recently published work is extended to study effect mass and charge density on step PPy(DBS). The based a mechanistic approach for storage conducting polymers leads development structure-dependent input-output relationships develop cation concentration sensor. we demonstrate use poles residues deconstruct chronocoulometric by seperating contributions from double layer accumulation...
Enzymes have evolved over hundreds of years through changes in ecosystems (climate, atmosphere, hydrology, etc). The evolutionary driven by the need to survive has led enzymes with diverse functionality such as reduction carbon dioxide and methane other forms carbon, fixation nitrogen, high temperature biochemical processes. While these useful properties, engineering a scalable cell-free system will be for stable production desired products without involving vagaries cellular metabolism....
High-pressure nozzles and ultrasonic atomizers are the two most common devices used to generate sprays. Each of these has some disadvantages, such as controllability in high-pressure fluid management challenges devices. To overcome limitations, a new atomization technology using synthetic jet actuator was developed is presented here. The work includes design experimental analysis both stand-alone jet-based device. designed model-based approach characterized by measuring dynamic orifice...