University of Illinois

USA As Represented by Secretary of the Navy

Michigan State University

Junghoon Yeom

Mark A Shannon

Pehr E Pehrsson

Christopher Field

Patrick Kwon

Kevin J Johnson

Braden C Giordano

Prashant Jain

Mayank Behl

Daniel Ratchford

The disclosure relates to microchemical (or microfluidic) apparatus as well as related methods for making the same. The methods generally include partial sintering of sintering powder (e.g., binderless or otherwise free-flowing sintering powder) that encloses a fugitive phase material having a shape corresponding to a desired cavity structure in the formed apparatus. Partial sintering removes the fugitive phase and produces a porous compact, which can then be machined if desired and then further fully sintered to form the final apparatus. The process can produce apparatus with small, controllable cavities shaped as desired for various microchemical or microfluidic unit operations, with a generally smooth interior cavity finish, and with materials (e.g., ceramics) able to withstand harsh environments for such unit operations.

Microchemical system apparatus and related methods of fabrication

Disclosed herein is a method of providing a structure having two electrodes connected by nanowires, exposing the structure to an analyte that can adsorb onto the nanowires, and passing an electrical current through the nanowires to heat the nanowires to desorb the analyte. Also disclosed herein is an apparatus having the above structure; a current source electrically connected to the electrodes, and a detector to detect the analyte.

Nanowire arrays for trace vapor preconcentration

A zinc titanate reactive adsorbent comprising multiphase, polycrystalline nanofibers comprising ZnTiO, ZnO, TiO, and ZnTiO.

Process for producing a regenerable oxide-based adsorbent

Regenerable oxide-based adsorbent

A method of forming a patterned layer of a material on a substrate includes forming a layer of the material on a stamp, and contacting the stamp with a first substrate comprising a pattern of protruding and recessed features to bring a first portion of the layer into conformal contact with the protruding features. The stamp is then removed from the first substrate. The first portion of the layer remains in conformal contact with the protruding features, and a second portion of the layer opposite the recessed features is removed with the stamp. Accordingly, a patterned layer is formed on the stamp inverse to the pattern on the first substrate. The method may further include transferring the patterned layer on the stamp to a second substrate.

Method of forming a patterned layer of a material on a substrate

Growing community of inventors

Okemos, MI, United States of America

Junghoon Yeom