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：US20190145752A1

公开(公告)日：2019-05-16

申请号：US16300010

申请日：2017-05-09

Applicant: South Dakota Board of Regents

Inventor： Zhengtao Zhu ,  Yichun Ding ,  Yongchen Yang

IPC: G01B7/16 ,  D01F9/22 ,  D01D5/00 ,  D01F6/18 ,  B29C41/00

Abstract: The present disclosure provides a simple method to assemble a highly stretchable and highly sensitive strain sensor. Carbon nanofibers prepared by electrospinning of PAN followed by stabilization and carbonization, are sandwiched in two layers of elastomer PU. The CNFs/PU strain sensor shows large strain range of 300%, high sensitivity with gauge factor up to 72.5, and superior stability and durability during 8000 cycles of stretch/release. These parameters meet the intended objectives of the present disclosure and distinguish the present disclosure from the piezoresistive strain sensors reported in the art. Additionally, the CNFs/PU strain sensor shows fast, stable and reproducible responses following the bending movement of fingers, wrists, and elbows. A flexible CNFs/PU strain sensor with the properties disclosed herein can have broad applications in wearable devices for human motion monitoring.

公开(公告)号：US20180222127A1

公开(公告)日：2018-08-09

申请号：US15520976

申请日：2015-10-23

Applicant: South Dakota Board of Regents

Inventor： Eric D. Schmid ,  David R. Salem

IPC: B29C67/20 ,  B82Y30/00 ,  E04B1/80

CPC classification number: B29C67/202 ,  B29K2101/12 ,  B29K2105/122 ,  B29K2995/0015 ,  B29L2031/10 ,  B82Y30/00 ,  E04B1/806

Abstract: The invention relates to micro-channeled and/or nano-channeled polymer compositions for structural and thermal insulation composites and methods of preparing the same. The composites can be tailored to achieve desired mechanical and thermal insulation properties.

公开(公告)号：US10004831B2

公开(公告)日：2018-06-26

申请号：US15598544

申请日：2017-05-18

Applicant: South Dakota Board of Regents ,  SANFORD HEALTH

Inventor： Gopinath Mani ,  Sujan Lamichhane ,  Jordan Anderson ,  Tyler Remund ,  Patrick W. Kelly

IPC: A61L29/08 ,  A61L29/16 ,  A61L31/10 ,  A61M25/10

CPC classification number: A61L29/085 ,  A61L29/16 ,  A61L31/10 ,  A61L2300/416 ,  A61L2300/608 ,  A61L2420/02 ,  A61L2420/06 ,  A61L2420/08 ,  A61M25/10 ,  A61M2025/105

Abstract: The present invention provides formulations comprising polymers and therapeutics and methods for their manufacture. The present invention also provides medical devices coated with such formulations and methods for their manufacture. The drug-loaded polymer formulations, solutions, and films tailor the drug release characteristics for medical devices.

公开(公告)号：US20180031517A1

公开(公告)日：2018-02-01

申请号：US15665370

申请日：2017-07-31

Applicant: South Dakota Board of Regents

Inventor： Nathan Netzer ,  Indrek Must ,  Yupu Qiao ,  Zhenqiang Wang ,  Zhen Zhang ,  Shi-Li Zhang

IPC: G01N27/414 ,  G01N33/18

CPC classification number: G01N27/414 ,  G01N27/333 ,  G01N27/4146 ,  G01N33/1813

Abstract: The disclosed apparatus, systems and methods relate to the use of metal-organic supercontainers as a size-selective ionophore by incorporation into a substrate for ion sensing electrodes.

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.

公开(公告)号：US20170369409A1

公开(公告)日：2017-12-28

申请号：US15683890

申请日：2017-08-23

Applicant: SOUTH DAKOTA BOARD OF REGENTS

Inventor： DAVID A. BOYLES ,  JOHN T. BENDLER ,  TSVETANKA FILIPOVA

IPC: C07C39/367 ,  H01G4/18 ,  C08G64/10 ,  C07C2601/04 ,  C07C2601/14 ,  C07C2601/02 ,  C07C2601/08 ,  H01G4/32 ,  C07C2601/16

CPC classification number: C07C39/367 ,  C07C39/42 ,  C07C43/295 ,  C07C2601/02 ,  C07C2601/04 ,  C07C2601/08 ,  C07C2601/14 ,  C07C2601/16 ,  C08G64/10 ,  H01B3/426 ,  H01G4/18 ,  H01G4/186 ,  H01G4/32

Abstract: The present invention provides monomers, analogs, and/or derivatives of bisphenols substituted with one or more fluoromethyl groups. These monomers, analogs, and/or derivatives can be used to form oligomers and/or polymers, which in turn can be used to make compounds with dielectric properties suitable for dielectric materials, including for example, use in energy dense capacitors. In a preferred embodiment, the compounds can comprise a polycarbonate of a homopolymer, copolymer, and/or terpolymer of a bisphenol with one or more fluoromethyl substitution groups. In an aspect of the invention the compounds chosen can be selected based on various desired characteristics, including, for example, their energy density, glass transition temperature, dielectric loss, and/or dipole density.

公开(公告)号：US20170334939A1

公开(公告)日：2017-11-23

申请号：US15666231

申请日：2017-08-01

Applicant: South Dakota Board of Regents

Inventor： Zhenqiang Wang ,  Feng-Rong Dai

IPC: C07F15/06 ,  C07F3/02 ,  B01J20/32 ,  C02F1/28 ,  B01D15/00 ,  C07F15/04 ,  C07D341/00

CPC classification number: C07F15/06 ,  B01D15/00 ,  B01J20/3219 ,  B01J20/3242 ,  C02F1/281 ,  C02F1/285 ,  C02F1/286 ,  C07D341/00 ,  C07F3/02 ,  C07F15/04

Abstract: A new strategy to design container molecules is presented. Sulfonylcalix[4]arenes, which are synthetic macrocyclic containers, are used as building blocks that are combined with various metal ions and tricarboxylate ligands to construct metal-organic ‘super-containers’ (MOSCs). These MOSCs possess both endo and exo cavities and thus mimic the structure of viruses. The synthesis of MOSCs is highly modular, robust, and predictable.

公开(公告)号：US20170222212A1

公开(公告)日：2017-08-03

申请号：US15492153

申请日：2017-04-20

Applicant: SOUTH DAKOTA BOARD OF REGENTS

Inventor： Haiping Hong ,  David R. Salem ,  Gregory Lee Christensen ,  Ruidong Yang

IPC: H01M4/133 ,  H01M10/0585 ,  H01M4/131 ,  H01M4/1393 ,  H01M4/1391 ,  H01M4/04 ,  H01M4/52 ,  H01M4/62 ,  H01M4/66 ,  H01M4/70 ,  H01M4/134 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/583

CPC classification number: H01M4/133 ,  B82Y30/00 ,  H01M4/0404 ,  H01M4/0419 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/362 ,  H01M4/364 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485 ,  H01M4/505 ,  H01M4/52 ,  H01M4/523 ,  H01M4/525 ,  H01M4/583 ,  H01M4/587 ,  H01M4/62 ,  H01M4/622 ,  H01M4/623 ,  H01M4/661 ,  H01M4/70 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2004/028

Abstract: An electrode comprises carbon nanoparticles and at least one of metal particles, metal oxide particles, metalloid particles and/or metalloid oxide particles. A surfactant attaches the carbon nanoparticles and the metal particles, metal oxide particles, metalloid particles and/or metalloid oxide particles to form an electrode composition. A binder binds the electrode composition such that it can be formed into a film or membrane. The electrode has a specific capacity of at least 450 mAh/g of active material when cycled at a charge/discharge rate of about 0.1 C.

公开(公告)号：US09666861B2

公开(公告)日：2017-05-30

申请号：US14696435

申请日：2015-04-25

Applicant: SOUTH DAKOTA BOARD OF REGENTS

Inventor： Haiping Hong ,  David R. Salem ,  Gregory Lee Christensen ,  Ruidong Yang

IPC: H01M4/38 ,  H01M4/52 ,  H01M4/62 ,  H01M4/36 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M10/052 ,  H01M4/04 ,  B82Y30/00 ,  H01M4/587

CPC classification number: H01M4/133 ,  B82Y30/00 ,  H01M4/0404 ,  H01M4/0419 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/362 ,  H01M4/364 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485 ,  H01M4/505 ,  H01M4/52 ,  H01M4/523 ,  H01M4/525 ,  H01M4/583 ,  H01M4/587 ,  H01M4/62 ,  H01M4/622 ,  H01M4/623 ,  H01M4/661 ,  H01M4/70 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2004/028

Abstract: An electrode comprises carbon nanoparticles and at least one of metal particles, metal oxide particles, metalloid particles and/or metalloid oxide particles. A surfactant attaches the carbon nanoparticles and the metal particles, metal oxide particles, metalloid particles and/or metalloid oxide particles to form an electrode composition. A binder binds the electrode composition such that it can be formed into a film or membrane. The electrode has a specific capacity of at least 450 mAh/g of active material when cycled at a charge/discharge rate of about 0.1C.