Massachusetts Institute of Technology

Toyoichi Tanaka

Masahiko Annaka

Etsuo Kokufuta

Franck Ilmain

Masahiro Irie

Akira Mamada

Yong-Qing Zhang

Shao-Tang Sun

Saturo Masamune

Yoshitsugu Hirokawa

Izumi Nishio

Dawan Kungwatchakun

Multiple-phase transition copolymers are formed which can selectively bind and release a chemical, or which can selectively catalyze a specific chemical reaction.

Polymeric phase transition artificial receptors, antibodies, and enzymes

An interpenetrating gel and a method of forming an interpenetrating gel which undergoes a significantly large volume change in response to a physical or chemical stimululs is disclosed.

Interpenetrating-polymer network phase-transition gels

The invention relates to a novel absorbent composition and manner of using the same. The absorbent has at least the following two components:

Salt tolerant super absorbents

Novel gel compositions are provided which exhibit a drastic discontinuous volume change when exposed to or shielded from light energy.

Photo-induced reversible, discontinuous volume changes in gels

Ionized crosslinked polyacrylamide gels are provided that are capable of drastic volume changes in response to minor changes in solvent concentration, temperature of pH or salt concentration of the solvent. The gels can contain a metal ion.

Collapsible gel compositions

An ionic gel formed by polymerization of isopropylacrylamide in the presence of an ion-containing monomer, a crosslinking agent and a suitable liquid medium is provided. The gel is capable of drastic volume change in response to solvent composition, temperature, pH, or ion composition.

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Wellesley, MA, United States of America

Toyoichi Tanaka