A5009456236- Nanofabrication and Lithography Techniques
- Advanced biosensing and bioanalysis techniques
- Biosensors and Analytical Detection
- Advanced Cellulose Research Studies
- Supercapacitor Materials and Fabrication
- Additive Manufacturing and 3D Printing Technologies
- Electrochemical sensors and biosensors
- Advanced Polymer Synthesis and Characterization
- Microfluidic and Capillary Electrophoresis Applications
- Tribology and Wear Analysis
- Surface Modification and Superhydrophobicity
- Advanced Sensor and Energy Harvesting Materials
- Polymer Nanocomposite Synthesis and Irradiation
- Photonic Crystals and Applications
- 3D IC and TSV technologies
- Mesoporous Materials and Catalysis
- Metamaterials and Metasurfaces Applications
- Microfluidic and Bio-sensing Technologies
- Thermal Radiation and Cooling Technologies
- Pickering emulsions and particle stabilization
- Nonlinear Optical Materials Studies
- Surfactants and Colloidal Systems
- Advanced Battery Materials and Technologies
- Molecular Junctions and Nanostructures
- Nanocomposite Films for Food Packaging
University of Massachusetts Amherst
2015-2021
Amherst College
2015
California NanoSystems Institute
2013
University of California, Los Angeles
2013
Fudan University
2012
A platform for capture and release of circulating tumor cells (CTCs) is demonstrated by utilizing aptamer grafted silicon nanowires. Here, single-stranded DNA-aptamers are generated via the Cell-SELEX process to serve as agents, allowing specific non-small cell lung cancer (NSCLC) CTCs from whole-blood samples with minimum contamination negligible disruption CTC viability functions.
An inexpensive microfluidic sweat sensor platform for single-use and continuous biomarker measurements integrated with a synthetic skin characterization at various rates.
Research in microfluidic biosensors has led to dramatic improvements sensitivities. Very few examples of these devices have been commercially successful, keeping this methodology out the hands potential users. In study, we developed a method fabricate flexible device containing electrowetting valves and electrochemical transduction. The was designed be amenable roll-to-roll manufacturing system, allowing low cost. Microchannels with high fidelity were structured on PET film using...
Cellulose-based aerogels are reported that were generated using cellulose nanofibril (CNF) gels in an ambient drying process. These nancellulose inspired by the preparation of a traditional Chinese food, frozen tofu, which undergoes significant toughening after freezing and thawing. It is this mechanism allows for formation nanocellulose ordinarily would collapse upon drying. By hydrated CNF gel dispersions, solvent exchanging, at pressure, monolithic with high porosity (>98%), low density...
The trend of device downscaling drives a corresponding need for power source miniaturization. Though numerous microfabrication methods lead to successful creation submillimeter-scale electrodes, scalable approaches that provide cost-effective nanoscale resolution energy storage devices such as on-chip batteries remain elusive. Here, we report nanoimprint lithography (NIL) direct patterning technique fabricate high-performance TiO2 nanoelectrode arrays lithium-ion (LIBs) over relatively large...
Fabrication of detection elements with ultrahigh surface area is essential for improving the sensitivity analyte detection. Here, we report a direct patterning technique to fabricate three-dimensional CeO2 nanoelectrode arrays biosensor application over relatively large areas. The fabrication approach, which employs nanoimprint lithography and nanoparticle-based ink, enables direct, high-throughput nanostructures scalable, integrable, low cost. With convenience sequential imprinting,...
Abstract A novel way is introduced to control polymerization routes and morphology of final polymer microspheres during the Pickering polymerization. Cetyltrimethylammonium bromide (CTAB)‐modified silica different initiators are used simultaneously determine initiation location, nucleation step, particles. As stabilizer, CTAB‐modified characterized by dynamic light scattering. The size distribution oil droplets stabilized nanoparticles observed optical microscopy. resulted silica/polymer...
Nanoimprint lithography (NIL) offers high precision patterning of structures as small 50 nm using wafer-based or roll-to-roll process platforms, however current resist systems offer little functionality. We developed hybrid UV-NIL resists containing up to 90 wt. % nanoparticles with excellent optical transparency for direct device including a readily scalable print, lift, and stack approach producing large-area, 3D photonic crystal (PC) gratings. have also extended the NIL directly print...
Metallic photonic crystals (MPCs) exhibit wavelength-selective thermal emission enhancements and are promising optical devices for various applications. Here, we report a scalable fabrication strategy MPCs suitable high-temperature Well-defined double-layer titanium dioxide (TiO2) woodpile structures fabricated using layer-by-layer soft-imprint method with TiO2 nanoparticle ink dispersions, the subsequently coated high purity, conformal gold films via reactive deposition from supercritical...
We investigated the role of platelet size in viscoelasticity a soft solid nanocomposite, which consisted exfoliated clay liquid polymer matrix. The internal connectivity nanocomposite reduced significantly when made up smaller platelets. This expresses itself lowering modulus and an increase relaxation times. Sample preparation played critical these experimental findings. Two polybutadienes served as matrix fluids, nonfunctionalized polybutadiene (PB), is noninteracting liquid, carboxyl...
Fabrication of ultra-high surface area electrodes can improve sensitivity for analyte detection. Here we report a scalable method producing three-dimensional, nanoscale woodpile structures cerium oxide use in glucose sensors. A CeO 2 nanoparticle based ink was used to directly pattern 500 nm wide grid via solution-based soft nanoimprint lithography technique. The residual layer the imprinted minimized by optimization CeO2 concentration, speed and time spin coating. Multi-layered were then...
The trend of device downscaling drives the corresponding need for power source miniaturization. With footprint area being determinant form factor on-chip battery systems, enhancement areal energy and density is urgently needed. Due to 2D configuration limit, it impractical a conventional thin film possess high capacity simultaneously. Here, we show that novel 3D woodpile electrode, made from TiO 2 nanoparticles using solvent-assisted nanoimprint lithography (NIL), can remarkably enhance both...