公开(公告)号：US11724234B2

公开(公告)日：2023-08-15

申请号：US16329653

申请日：2016-08-31

Applicant: SOUTH DAKOTA BOARD OF REGENTS

Inventor： Rajesh Sahadevan ,  Todd J. Menkhaus ,  Hao Fong

IPC: B01D69/12 ,  B01D69/10 ,  B01D71/56 ,  B01D69/14 ,  B01D67/00

CPC classification number: B01D69/125 ,  B01D67/0079 ,  B01D69/10 ,  B01D69/12 ,  B01D69/148 ,  B01D71/56 ,  B01D2323/26 ,  B01D2323/30 ,  B01D2323/39 ,  B01D2323/40 ,  B01D2325/02

Abstract: This invention relates thin film nanocomposites (TFNCs) and methods of preparing the same by molecular layer-by-layer assembly. The TFNCs comprise a porous nanofibrous support first layer coated with a mid-layer having an outer separating layer, wherein the out separating layer has one or more bilayers or trilayers. The TFNCs can be particularly suitable for use as filtration membranes for the separation of dissolved components from fluids such as ultrafiltration, nanofiltration, and reverse osmosis. Thus, embodiments of the invention also include filtration systems and methods of filtering.

公开(公告)号：US10369252B2

公开(公告)日：2019-08-06

申请号：US15539517

申请日：2015-12-23

Applicant: South Dakota Board of Regents

Inventor： Hao Fong ,  Tao Xu ,  Yong Zhao ,  Todd J. Menkhaus

IPC: A61F2/00 ,  A61F2/02 ,  D01D5/00 ,  A61L27/18 ,  A61L27/38 ,  A61L27/50 ,  A61L27/54 ,  A61L27/56 ,  D04H1/728 ,  D04H1/4242

Abstract: The invention relates to electrospun three-dimensional (3D) nanofibrous scaffolds (with controllable porosities as high as about 96%) and methods of preparing the same. The electrospun 3D scaffolds possess interconnected and hierarchically structured pores with sizes ranging from tens of nanometers to hundreds of micrometers. In embodiments, the 3D scaffolds can be biocompatible and/or biodegradable. In some embodiments, the 3D scaffolds can be conductive. In some embodiments, the 3D scaffolds can contain bioactive species.

公开(公告)号：US20190193033A1

公开(公告)日：2019-06-27

申请号：US16329653

申请日：2016-08-31

Applicant: SOUTH DAKOTA BOARD OF REGENTS

Inventor： Rajesh Sahadevan ,  Todd J. Menkhaus ,  Hao Fong

IPC: B01D69/12 ,  B01D69/10 ,  B01D67/00 ,  B01D71/56

CPC classification number: B01D69/125 ,  B01D67/0079 ,  B01D69/10 ,  B01D69/12 ,  B01D69/148 ,  B01D71/56 ,  B01D2323/26 ,  B01D2323/30 ,  B01D2323/39 ,  B01D2323/40 ,  B01D2325/02

Abstract: This invention relates thin film nanocomposites (TFNCs) and methods of preparing the same by molecular layer-by-layer assembly. The TFNCs comprise a porous nanofibrous support first layer coated with a mid-layer having an outer separating layer, wherein the out separating layer has one or more bilayers or trilayers. The TFNCs can be particularly suitable for use as filtration membranes for the separation of dissolved components from fluids such as ultrafiltration, nanofiltration, and reverse osmosis. Thus, embodiments of the invention also include filtration systems and methods of filtering.

公开(公告)号：US20180015201A1

公开(公告)日：2018-01-18

申请号：US15539517

申请日：2015-12-23

Applicant: South Dakota Board of Regents

Inventor： Hao Fong ,  Tao Xu ,  Yong Zhao ,  Todd J. Menkhaus

IPC: A61L27/18 ,  A61L27/38 ,  A61L27/54 ,  A61L27/56 ,  D01D5/00 ,  A61L27/50 ,  A61F2/02 ,  A61F2/00

CPC classification number: A61L27/18 ,  A61F2/0077 ,  A61F2/02 ,  A61F2002/0086 ,  A61F2210/0004 ,  A61F2240/001 ,  A61L27/3834 ,  A61L27/50 ,  A61L27/54 ,  A61L27/56 ,  A61L2300/64 ,  A61L2400/12 ,  A61L2430/02 ,  D01D5/0007 ,  D01D5/003 ,  D01D5/0092 ,  D04H1/4242 ,  D04H1/728 ,  D10B2509/00

Abstract: The invention relates to electrospun three-dimensional (3D) nanofibrous scaffolds (with controllable porosities as high as about 96%) and methods of preparing the same. The electrospun 3D scaffolds possess interconnected and hierarchically structured pores with sizes ranging from tens of nanometers to hundreds of micrometers. In embodiments, the 3D scaffolds can be biocompatible and/or biodegradable. In some embodiments, the 3D scaffolds can be conductive. In some embodiments, the 3D scaffolds can contain bioactive species.