University of Minnesota

Embomedics, Inc.

Lihui Weng

Jafar Golzarian

Omid Souresrafil

The present disclosure is generally directed to an embolic material which, in some embodiments, may be in the form of a microsphere or a plurality of microspheres. The embolic material generally comprises carboxymethyl chitosan (CCN) crosslinked with carboxymethyl cellulose (CMC). In some embodiments, the embolic material may further comprise a therapeutic agent, such as doxorubicin.

Bioresorbable embolization microspheres

The present disclosure describes a plurality of microspheres that include carboxymethyl chitosan (CCN) crosslinked with carboxymethyl cellulose (CMC). The microspheres are biocompatible, bioresorbable, and biodegradable. The microspheres may be used in personal care products, such as, for example, toothpaste, topical pain relief products, topical antibiotic products, skincare products such as anti-wrinkle products, eczema products, skin scrubs, acne cleansers, exfoliators, body washes, soaps, pre-shave creams, or the like.

Biodegradable microspheres

A liquid embolic material may include a mixture of a first solution comprising between about 1.2% and about 2.5% weight per volume (w/v) carboxymethyl chitosan (CCN) in a first solvent and a second solution comprising between about 1.2% and about 2.5% w/v oxidized carboxymethyl cellulose (OCMC) in a second solvent. The liquid embolic material may be used to embolize a targeted embolization location by mixing the first solution and the second solution to form a liquid embolic material (or hydrogel precursor material), introducing the hydrogel precursor material to a targeted embolization location within a body of a patient, and allowing the CCN and the OCMC to react to form the hydrogel material and embolize the targeted embolization location.

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Woodbury, MN, United States of America

Lihui Weng