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Michigan Technological University

3 ARTICLES PUBLISHED IN JoVE

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Engineering

Development of a 3D Graphene Electrode Dielectrophoretic Device
Hongyu Xie 1, Radheshyam Tewari 2, Hiroyuki Fukushima 3, Jeffri Narendra 3, Caryn Heldt 1, Julia King 1, Adrienne R. Minerick 1
1Department of Chemical Engineering, Michigan Technological University, 2Department of Mechanical Engineering, Michigan Technological University, 3XG Sciences, Inc.

A microdevice with high throughput potential is used to demonstrate three-dimensional (3D) dielectrophoresis (DEP) with novel materials. Graphene nanoplatelet paper and double sided tape were alternately stacked; a 700 μm micro-well was drilled transverse to the layers. DEP behavior of polystyrene beads was demonstrated in the micro-well.

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Environment

Ammonia Fiber Expansion (AFEX) Pretreatment of Lignocellulosic Biomass
Shishir P. S. Chundawat 1, Ramendra K. Pal 1, Chao Zhao 1, Timothy Campbell 2, Farzaneh Teymouri 2, Josh Videto 2, Chandra Nielson 2, Bradley Wieferich 3, Leonardo Sousa 3, Bruce E. Dale 3, Venkatesh Balan 4, Sarvada Chipkar 5, Jacob Aguado 5, Emily Burke 5, Rebecca G. Ong 5
1Department of Chemical and Biochemical Engineering, Rutgers-State University of New Jersey, 2Michigan Biotechnology Institute (MBI), 3Department of Chemical Engineering and Materials Science, Michigan State University, 4Engineering Technology Department, Biotechnology Program, College of Technology, University of Houston, 5Department of Chemical Engineering, Michigan Technological University

Ammonia fiber expansion (AFEX) is a thermochemical pretreatment technology that can convert lignocellulosic biomass (e.g., corn stover, rice straw, and sugarcane bagasse) into a highly digestible feedstock for both biofuels and animal feed applications. Here, we describe a laboratory-scale method for conducting AFEX pretreatment on lignocellulosic biomass.

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Environment

Evaluating the Impact of Hydraulic Fracturing on Streams using Microbial Molecular Signatures
Jeremy R. Chen See 1,2, Olivia Wright 1, Lavinia V. Unverdorben 1,2, Nathan Heibeck 1, Stephen M. Techtmann 3, Terry C. Hazen 4,5, Regina Lamendella 1,2
1Department of Biology, Juniata College, 2Wright Labs, LLC, 3Department of Biological Sciences, Michigan Technological University, 4Biosciences Division, Oak Ridge National Laboratory, 5Department of Civil and Environmental Engineering, University of Tennessee

Here, we present a protocol to investigate the impacts of hydraulic fracturing on nearby streams by analyzing their water and sediment microbial communities.

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