University of Missouri

University of Notre Dame Du Lac

Battelle Memorial Institute

New Jersey Institute of Technology

Sagnik Basuray

Shubhra Gangopadhyay

Keshab Gangopadhyay

Aaron Wood

Hsueh-Chia Chang

Sheila Ann Grant

Sangho Bok

Cherian Joseph Mathai

Biyan Chen

Samiullah Pathan

Radha Kishan Motkuri

Satyajyoti Senapati

Sayandev Chatterjee

Zachary Gagnon

Gilad Yossifon

Arnab Ghosh

Drew Edwin Menke

Joseph Mathai

Peter Cornish

Peter Mushenheim

Jason Gordon

Satyajyoti Senpati

Yu Hsuan Cheng

Venu Korampally

Kunal Bhatnagar

Avinash Pathak

Materials for binding per- and polyfluoroalkyl substances (PFAS) are disclosed. A fluidic device comprising the materials for detection and quantification of PFAS in a sample is disclosed. The fluidic device may be configured for multiplexed analyses. Also disclosed are methods for sorbing and remediating PFAS in a sample. The sample may be groundwater containing, or suspected of containing, one or more PFAS.

Fluidic impedance platform for in-situ detection and quantification of PFAS in groundwater

Provided are nanograting structures and methods of fabrication thereof that allow for stable, robust gratings and nanostructure embedded gratings that enhance electromagnetic field, fluorescence, and photothermal coupling through surface plasmon or, photonic resonance. The gratings produced exhibit long term stability of the grating structure and improved shelf life without degradation of the properties such as fluorescence enhancement. Embodiments of the invention build nanograting structures layer-by-layer to optimize structural and optical properties and to enhance durability.

Fabrication of multilayer nanograting structures

A method of producing a grating structure comprises the steps of forming a stamp from flexible plastic material, the stamp including a negative of a periodic grating pattern on a first surface; forming an ink by applying a polymer film to the stamp, the ink including a first surface and an opposing second surface, wherein the first surface of the ink contacts the first surface of the stamp such that the ink retains a positive of the periodic grating pattern; placing the ink and the stamp on a substrate such that the second surface of the ink contacts an upper surface of the substrate; and removing the stamp from the ink by applying a tensional force to one edge of the stamp.

Nano-gap grating devices with enhanced optical properties and methods of fabrication

A microchamber electrochemical cell and method of using the cell for performing quantitative analysis of various charged macromolecules is presented. The microchamber electrochemical cell includes a substrate, opposing electrodes and at least one nanoslot. The substrate is configured to define a pair of opposing fluid reservoirs. The pair of opposing electrodes are respectively positioned within the opposing fluid reservoirs. Each nanoslot is configured to fluidly connect the opposing fluid reservoirs together. The opposing fluid reservoirs of the microchamber electrochemical cell are fluidly connected to each other only through each nanoslot. Each nanoslot is physically restricted to less than 500 nanometers. One method includes the steps of coupling, filling, measuring, obtaining, performing and preparing.

Microchamber electrochemical cell having a nanoslot

Disclosed are example methods and devices for detecting one or more targets. An example method includes placing a sample including a first target with in a microfluidic device and hybridizing a plurality of copies of the first target with a plurality of nanostructures. The example method includes applying an electric current to the plurality of nanostructures and using an electric field created by the electric current to move the plurality of nanostructures. In addition, the plurality of nanostructures are sorted and evaluated to determine at least one of a presence, an absence, or a quantity of the first target.

Microfluidic platforms for multi-target detection

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Parsippany, NJ, United States of America

Sagnik Basuray