Catherine A Bothof

8328023, Dec 11, 2012

Nov 18, 2009

12/620754

Douglas E. Weiss - Golden Valley MN, US
Michael R. Berrigan - Oakdale MN, US
Andrew W. Rabins - St. Paul MN, US
Jeffrey A. Lucas - Clinton CT, US
Kannan Seshadri - Woodbury MN, US
Catherine A. Bothof - Stillwater MN, US

3M Innovative Properties Company - St. Paul MN

B01D 24/00
B01D 37/00

210503, 210634, 210767, 21050021, 210506

A grafted nonwoven substrate is disclosed having average fiber sizes of 0. 7 to 15 microns, and a void volume of 50 to 95%, and a polymer comprising cationic aminoalkyl(meth)acryloyl monomer units grafted to the surface of the nonwoven substrate. The article may be used as a filter element to purify or separate target materials, such as oligonucleotides or monoclonal antibodies (MAb), from a fluid mixture.

8329034, Dec 11, 2012

Jun 21, 2010

12/819261

Douglas E. Weiss - Golden Valley MN, US
Catherine A. Bothof - Stillwater MN, US
Kannan Seshadri - Woodbury MN, US

3M Innovative Properties Company - St. Paul MN

B01D 24/00
B01D 37/00

210338, 210634, 210767, 21050021, 210506, 210503

A grafted nonwoven substrate is disclosed having average fiber sizes of 0. 7 to 15 microns, and a void volume of 50 to 95%, and a polymer comprising anionic monomer units grafted to the surface of the nonwoven substrate. The article may be used as a filter element to purify or separate target materials, such as monoclonal antibodies (MAb), from a fluid mixture.

8377672, Feb 19, 2013

Jan 7, 2011

12/986485

Jerald K. Rasmussen - Woodville WI, US
Catherine A. Bothof - Stillwater MN, US
Kannan Seshadri - Woodbury MN, US
Erin A. Satterwhite - West St. Paul MN, US
Robert T. Fitzsimons - Minneapolis MN, US
James I. Hembre - Plymouth MN, US
Mahfuza B. Ali - Mendota Heights MN, US

3M Innovative Properties Company - St. Paul MN

C12N 9/00
C12N 9/96
C12N 7/06
C08C 19/22

435191, 525376, 525379, 525381, 525382, 526310, 530412, 530421, 536 254, 435183, 435239, 4352521, 435261, 435325, 210679, 210735, 428582

Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.

8435776, May 7, 2013

Feb 14, 2011

13/026331

Jerald K. Rasmussen - Woodville WI, US
Kannan Seshadri - Woodbury MN, US
James I. Hembre - Plymouth MN, US
Catherine A. Bothof - Stillwater MN, US
Erin A. Satterwhite - West St. Paul MN, US
George W. Griesgraber - Eagan MN, US
Yi He - Roseville MN, US
Louis C. Haddad - Mendota Heights MN, US

3M Innovative Properties Company - St. Paul MN

C12N 9/00
C07K 1/14
C07H 1/06
B01D 21/01

435183, 530413, 536 254, 210702, 210735

A method of separating a target biological species from a fluid is disclosed comprising contacting the fluid with a ligand-functionalized polymer comprising:.

8459470, Jun 11, 2013

Dec 7, 2012

13/708653

Michael R. Berrigan - St. Paul MN, US
Andrew W. Rabins - St. Paul MN, US
Jeffrey A. Lucas - Clinton CT, US
Kannan Seshadri - Woodbury MN, US
Catherine A. Bothof - Stillwater MN, US

3M Innovative Properties Company - St. Paul MN

B01D 24/00
B01D 37/00

210503, 210634, 210767, 21050021, 210506

A grafted nonwoven substrate is disclosed having average fiber sizes of 0. 7 to 15 microns, and a void volume of 50 to 95%, and a polymer comprising cationic aminoalkyl(meth)acryloyl monomer units grafted to the surface of the nonwoven substrate. The article may be used as a filter element to purify or separate target materials, such as oligonucleotides or monoclonal antibodies (MAb), from a fluid mixture.

8592493, Nov 26, 2013

May 11, 2009

13/000435

Simon K. Shannon - Horseheads NY, US
Catherine A. Bothof - Stillwater MN, US
Babu N. Gaddam - Woodbury MN, US
Jerald K. Rasmussen - Woodville WI, US
Richard B. Ross - Cottage Grove MN, US

3M Innovative Properties Company - St. Paul MN

B01J 39/18
B01J 49/00
C08F 20/56
C08F 8/32
C08F 220/56
C08F 8/14

521 33, 521 32, 5253294, 525380, 525384, 525379

Articles that contain a solid support with a grafted chain extending from the solid support, methods of making these articles, and various uses of the articles are described. More specifically, the grafted chain has a functional group that can react with or interact with target compound. Alternatively, the functional group on the grafted chain can react with a modifying agent to provide another group that can react with or interact with the target compound. The grafted chains are attached to the solid support through a ring-opened azlactone group. The articles can be used to purify the target compound or to separate the target compound from other molecules in a sample.

20050142563, Jun 30, 2005

Mar 26, 2004

10/810738

Louis Haddad - Mendota Heights MN, US
Barbara Swenson - North St. Paul MN, US
Catherine Bothof - Stillwater MN, US
Madhusudan Raghavachari - Cottage Grove MN, US

C12Q001/68
G01N033/53
C12M001/34

435006000, 435007100, 435287200

The present invention provides materials, methods, and kits for reducing nonspecific binding of molecules to a surface, particularly in a solid phase material, and more specifically a solid phase material that includes a hydrophobic portion, by contacting the solid phase material with a fluorinated nonionic surfactant comprising two or more fluorinated hydrophobic segments and one or more hydrophilic segments.

20110006007, Jan 13, 2011

Dec 19, 2008

12/746961

Gokhan Kuruc - Meriden CT, US
Marjorie Bucholz - Meriden CT, US
Todd E. Arnold - Glastonbury CT, US
Kannan Seshadri - Woodbury MN, US
Steven M. Heilmann - Afton MN, US
Andrew W. Rabins - St. Paul MN, US
Catherine A. Bothof - Stillwater MN, US

B01D 15/08
B01J 20/26
B01D 39/00
C02F 1/28
B01D 24/00
B01D 69/12

210656, 502402, 210435, 210679, 210287, 2103216

Provided are filtration media, matrixes, and systems for liquid purification that utilize functional polymer particles. The functional polymer particles can comprise a cationic charge. Exemplary functional polymer particles comprise comprise [3-(methacryloylamino)propyl]-trimethylammonium chloride (MAPTAC) polymerized with trimethylolpropane trimethacrylate (TMPTMA).