A5054368780- Adhesion, Friction, and Surface Interactions
- Advanced Battery Materials and Technologies
- Membrane-based Ion Separation Techniques
- Conducting polymers and applications
- Advanced battery technologies research
- Microplastics and Plastic Pollution
- Analytical Chemistry and Sensors
- Fuel Cells and Related Materials
- Force Microscopy Techniques and Applications
- Optical Coatings and Gratings
- Electrochemical Analysis and Applications
- RNA Interference and Gene Delivery
- Lattice Boltzmann Simulation Studies
- Corrosion Behavior and Inhibition
- Advanced biosensing and bioanalysis techniques
- Surface Modification and Superhydrophobicity
- Near-Field Optical Microscopy
- DNA and Nucleic Acid Chemistry
University of California, Berkeley
2023-2024
Johns Hopkins University
2021
University of Colorado Boulder
2019
Swarthmore College
2018
Adsorption of soluble DNA to surfaces decorated with complementary plays an important role in many bionanotechnology applications, and previous studies have reported complex dependencies the surface density immobilized on hybridization. While these effects been speculatively ascribed steric or electrostatic effects, influence surface-mediated molecular transport (i.e., intermittent "hopping diffusion") has not fully appreciated. Here, single-molecule tracking Förster resonance energy...
We investigated the carboxylated conjugated polymer poly 3-(3-carboxypropyl)thiophene-2,5-diyl as a nanosized (200–350 nm) biomolecule receptor layer on channel of organic electrochemical transistor (OECT) devices. Myelin basic protein, SARS-CoV-2 spike glycoprotein S1, and their antibodies (10 nm size scale) were alternately used in attached molecule form receptors analytes. Sub-ng detection buffer was observed, response to S1 also obtained clinical serum. Changes threshold voltage current...
Multidentate hydrogen-bonding interactions are a promising strategy to improve underwater adhesion. Molecular and macroscale experiments have revealed an increase in adhesion by incorporating multidentate H-bonding groups, but quantitatively relating the adhesive strength cooperative remains challenging. Here, we investigate whether tridentate alcohol moieties incorporated model epoxy act cooperatively enhance We first demonstrate that incorporation of leads comparable with mica aluminum air...
Highly concentrated aqueous electrolytes (termed water-in-salt electrolytes, WiSEs) at solid-liquid interfaces are ubiquitous in myriad applications including biological signaling, electrosynthesis, and energy storage. This interface, known as the electrical double layer (EDL), has a different structure WiSEs than dilute electrolytes. Here, we investigate how divalent salts [zinc bis(trifluoromethylsulfonyl)imide, Zn(TFSI)
Concentrated aqueous electrolytes (water-in-salt electrolytes, WiSEs) have gained increasing attention in the last few years because they display much wider electrochemical stability windows (upwards of 3V) than thermodynamic limit water (1.23V), making them exciting candidates for a variety systems including batteries. Importantly, it is ions directly at electrode/electrolyte interface that are key to explaining this unexpected reactivity. The classically thought as electrical double layer...
We present a method for the fabrication of ultra-smooth (0.2 nm RMS), aluminum substrates through template stripping (TS). The relies on use mica as in combination with thermal evaporation Al at high (>10 nm/s) rates under vacuum (≤1 × 10–7 Torr). As reactive metal, is usually not considered viable option TS off oxide templates. However, these conditions, adhesion between film and poor, enabling removal water without any residue. verify absence using atomic force microscopy, X-ray...
Microfluidic applications may involve the control of flows through a series junctions. For example, flow branching is typically used to deliver specific quantities fluid various locations and converging are associated with mixing processes. The shape interface at downstream junction focus this study. In particular, we investigate transition from planar stratified annular flow. We report results for microchannel configurations which have main channel an intersecting (at 90 or 45 degrees)...