International Business Machines Corporation

San Jose State University Research Foundation

Leland Stanford Junior University

Nanomalaysia Berhad

Joseph Sly

Robert Dennis Miller

Young-Hye Na

Geraud J Dubois

Victoria A Piunova

Ran Wang

Andy Theodora Tek

Victor Yee-Way Lee

Victor Y Lee

Daniel Stillman

James L Hedrick

Robert David Allen

Alshakim Nelson

Eric Andrew Appel

Melia Tjio

Lianna C Samuel

Mohd Zulkefeli Bin Mat Jusoh

Hector H Nuno

A thin film composite membrane (TFC) includes an active layer on a support. The active layer includes at least 8 barrier layers of star-polymers each having at least three linear polymers attached at a central core. Each of the barrier layers has a thickness between 5 and 50 nm, and the barrier layers have alternating charge.

Filtration membranes with functionalized star polymers

A porous membrane with a molecular weight cut-off (MWCO) greater than about 10 kDa, and a coating on at least a portion of a major surface of the porous membrane. The coating includes a star polymer having a hydrophobic core and hydrophilic arms, wherein the hydrophobic core contacts the porous membrane.

Anti-fouling coatings with star polymers for filtration membranes

A thin film composite (TFC) forward osmosis (FO) membrane includes a porous support with surfaces having thereon a hydrophilic self-assembled monolayer. An active layer on the support is sufficiently dense to remove an ionic species from a liquid.

Thin film composite forward osmosis membranes with performance enhancing layers

Star polymer occlusion complexes were prepared comprising i) an amphiphilic unimolecular star polymer having a crosslinked core covalently linked to 6 or more independent amphiphilic polymer arms, ii) a nutraceutical (such as coenzyme Q10), and iii) a cholesterol-lowering drug (such as simvastatin). An initial occlusion complex formed with the nutraceutical and the star polymer exhibited improved binding properties for the cholesterol-lowering drug, resulting in improved loading efficiencies for the cholesterol-lowering drug. The star polymer occlusion complexes have utility in the medical treatment of high blood cholesterol.

Co-delivery of cholesterol lowering drugs and nutraceuticals

A coated, thin-film composite membrane includes a porous support and a polyamide barrier layer in contact with the porous support. A fouling-resistant and antimicrobial layer of star polymers is in contact with the polyamide barrier layer. The star polymers included hydrophilic arms of about 40 mol % to about 80 mol % of neutral hydrophilic moieties, and about 60 mol % to about 20 mol % of antimicrobial functional groups.

Antifouling and antimicrobial coatings for thin film composite membranes

A method for removing glyphosate from a solution by contacting the solution with a polymeric particle including a moiety selected from the group consisting of ammonium, amine and combinations thereof, wherein the moiety is positively charged in the solution.

Method for removing glyphosate from a solution using functionalized polymeric nanoparticles

A nanoshell is disclosed, comprising a star polymer occlusion complex comprising i) an amphiphilic unimolecular star polymer having a crosslinked core covalently linked to 6 or more independent polymer arms, and ii) a cargo material occluded in the star polymer; and a shell comprising an inorganic material in contact with a peripheral surface of the star polymer occlusion complex.

Star polymer nanoshells and methods of preparation thereof

A composition of matter comprising an amphiphilic star polymer, the star polymer comprising a crosslinked microgel core and 6 or more independent polymer arms covalently linked to the core, the 6 or more arms each comprising a hydrophilic polymer chain segment and a hydrophobic polymer chain segment; wherein each individual metal selected from the group consisting of beryllium, magnesium, calcium, strontium, barium, radium, aluminum, gallium, indium, thallium, germanium, tin, lead, arsenic, antimony, bismuth, tellurium, polonium, and metals of Groups 3 to 12 of the Periodic Table has a concentration in the star polymer of greater than or equal to 0 parts per million and less than or equal to 100 parts per million.

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San Jose, CA, United States of America

Joseph Sly