公开(公告)号：US20210299607A1

公开(公告)日：2021-09-30

申请号：US17209386

申请日：2021-03-23

Applicant: The Johns Hopkins University

Inventor： Zhiyong Xia ,  Matthew W. Logan ,  Spencer A. Langevin ,  Scott A. Shuler

IPC: B01D53/26 ,  B01D53/04 ,  B01D53/047 ,  B01D53/28 ,  B01J20/22 ,  B01J20/26 ,  B01J20/24 ,  B01J20/28 ,  B01J20/30

Abstract: A water harvesting device includes at least a first adsorption column including a first inlet, a first outlet, and a first interior region. A sorbent material is located within the first interior region of the first adsorption column. The sorbent material includes a metal organic framework (MOF) material including a plurality of metal ions or clusters of metal ions coordinated to one or more organic linkers, a plurality of nanofabrics comprising a hydrogel material, or a combination thereof.

公开(公告)号：US11125633B2

公开(公告)日：2021-09-21

申请号：US16533406

申请日：2019-08-06

Applicant: The Johns Hopkins University

Inventor： Zhiyong Xia ,  Vanessa D. Alphonse ,  Evan P. Lloyd

IPC: G01L1/24 ,  C07D491/20 ,  C07D491/107

Abstract: Strain sensing compositions including a polymeric matrix material and a mechanophore component distributed throughout the polymeric material and covalently bonded to the polymeric material are provided. The mechanophore component undergoes a visible color change and the strain sensing composition exhibits a continuous three-dimensional (3D) spatial strain distribution including at least one color gradient upon direct or indirect impact by an object. Methods of forming strain sensing compositions are also provided. Methods of evaluating a strain distribution associated with an impact of a surrogate material comprising a mechanophore component are also provided.

公开(公告)号：US11015069B2

公开(公告)日：2021-05-25

申请号：US16241132

申请日：2019-01-07

Applicant: The Johns Hopkins University

Inventor： Zhiyong Xia ,  Adam J. Maisano ,  Lance M. Baird ,  Adam W. Freeman ,  Sara E. Kubik ,  Dawnielle Farrar-Gaines

IPC: C09D7/61 ,  C09D7/40 ,  C09D133/00 ,  C08K3/04 ,  B05D3/12 ,  B05D3/06 ,  C08K3/34 ,  C08L83/04

Abstract: A surface treatment formulation configured to inhibit scaling or climbing of a surface is provided. The surface treatment formulation may include a base binding material configured to adhere to the surface and a filler material embedded in the base binding material. The filler material may include a dry lubricant having a layered lamellar structure or low inter filler interaction. Furthermore, the surface treatment formulation may be configured to be activated in order to expose the filler material thereby causing formation of a slippery surface to inhibit the scaling or climbing of the surface.

公开(公告)号：US10801131B2

公开(公告)日：2020-10-13

申请号：US15468411

申请日：2017-03-24

Applicant: The Johns Hopkins University

Inventor： Matthew P. Yeager ,  Christopher M. Hoffman, Jr. ,  Morgana M. Trexler ,  Zhiyong Xia

IPC: D01D5/00 ,  D01F6/60 ,  C08G69/48 ,  B29C48/05 ,  B29C48/00 ,  B29C48/14 ,  D01D1/02 ,  C08G69/32 ,  B29K77/00

Abstract: Example methods and articles of manufacture related to electrospun aramid nanofibers are provided. One example method may include forming a resultant solution by reacting a solution of aramids dissolved in a solvent with an electrophile. In this regard, the electrophile may perform a side chain substitution on the dissolved aramids. The example method may further include electrospinning the resultant solution to form an aramid nanofiber.

公开(公告)号：US20200147358A1

公开(公告)日：2020-05-14

申请号：US16728079

申请日：2019-12-27

Applicant: The Johns Hopkins University

Inventor： Chao-Wei Hwang ,  Zhiyong Xia ,  Virginia E. Bogdan ,  Jeffrey A. Brinker ,  Gary Gerstenblith ,  Peter V. Johnston ,  Steven P. Schulman ,  Gordon Tomaselli ,  Robert G. Weiss

IPC: A61M37/00 ,  A61L27/18 ,  A61L27/38 ,  A61L27/54 ,  A61L27/56 ,  A61L31/00 ,  A61L31/14 ,  A61L31/16 ,  A61L31/06 ,  A61F2/04 ,  A61L31/10 ,  A61L33/00 ,  A61L33/08

Abstract: Certain embodiments according to the present invention provide sleeve devices suitable for a wide range of therapeutic uses. In accordance with certain embodiments, the therapeutic sleeve device includes a nanofiber fabric assembly, which defines a plurality of pores, and at least one layer of cells embedded in the nanofiber fabric assembly.

公开(公告)号：US10561830B2

公开(公告)日：2020-02-18

申请号：US15025902

申请日：2014-10-07

Applicant: THE JOHNS HOPKINS UNIVERSITY ,  Chao-Wei Hwang ,  Zhiyong Xia ,  Virginia E. Bogdan ,  Jeffrey A. Brinker ,  Gary Gerstenblith ,  Peter V. Johnston ,  Steven P. Schulman ,  Gordon Tomaselli ,  Robert G. Weiss

Inventor： Chao-Wei Hwang ,  Zhiyong Xia ,  Virginia E. Bogdan ,  Jeffrey A. Brinker ,  Gary Gerstenblith ,  Peter V. Johnston ,  Steven P. Schulman ,  Gordon Tomaselli ,  Robert G. Weiss

IPC: A61M37/00 ,  A61L33/00 ,  A61L27/18 ,  A61L27/38 ,  A61L27/54 ,  A61L27/56 ,  A61L31/00 ,  A61L31/14 ,  A61L31/16 ,  A61L31/06 ,  A61F2/04 ,  A61L31/10 ,  A61L33/08 ,  A61F2/07

Abstract: Certain embodiments according to the present invention provide sleeve devices suitable for a wide range of therapeutic uses. In accordance with certain embodiments, the therapeutic sleeve device includes a nanofiber fabric assembly, which defines a plurality of pores, and at least one layer of cells embedded in the nanofiber fabric assembly.

公开(公告)号：US20140224107A1

公开(公告)日：2014-08-14

申请号：US14093715

申请日：2013-12-02

Applicant: The Johns Hopkins University

Inventor： Zhiyong Xia ,  Brad M. Ward ,  Morgana M. Trexler

IPC: F41H5/04

CPC classification number: F41H5/0407

Abstract: A transparent armor laminate apparatus includes a hard disrupter layer having a substantially planar surface of transparent material configured to erode a ballistic projectile responsive to impact from the projectile, and an absorber configured proximate to the disrupter layer. The absorber includes a first absorber layer and a second absorber layer. The first and second absorber layers may be disposed proximate to each other to define an interface. The first absorber layer may include molecules substantially aligned in a mixture to form a first polymer chain orientation having a first angle relative to the interface and the second absorber layer may include molecules substantially aligned in a mixture to form a second polymer chain orientation having a second angle relative to the interface. A discontinuity exists between the first angle and the second angle or between the first polymer chain orientation and the second polymer chain orientation at the interface.

Abstract translation: 透明铠装层压装置包括具有基本上平坦的透明材料表面的硬质破坏层，其被配置为响应于来自射弹的冲击而侵蚀弹道射弹，以及靠近破坏器层配置的吸收体。 吸收体包括第一吸收层和第二吸收层。 第一和第二吸收层可以彼此靠近地设置以限定界面。 第一吸收层可以包括基本上在混合物中对准的分子，以形成相对于界面具有第一角度的第一聚合物链取向，并且第二吸收层可以包括基本上在混合物中对准的分子，以形成具有第二聚合物链取向的第二聚合物链取向 相对于界面的角度。 在界面处，在第一角度和第二角度之间或第一聚合物链取向和第二聚合物链取向之间存在不连续性。