公开(公告)号：US20240342665A1

公开(公告)日：2024-10-17

申请号：US18294825

申请日：2022-08-05

Applicant: University of Maine System Board of Trustees

Inventor： Michael Darin Mason ,  Muhammad Radowan Hossen

IPC: B01D71/10 ,  B01D67/00 ,  B01D69/02 ,  B01D69/14 ,  B01D71/74

CPC classification number: B01D71/10 ,  B01D67/003 ,  B01D69/02 ,  B01D69/14111 ,  B01D71/74 ,  B01D2311/14 ,  B01D2311/2688 ,  B01D2323/18 ,  B01D2323/20 ,  B01D2323/216 ,  B01D2323/21817 ,  B01D2323/21826 ,  B01D2325/40

Abstract: The present invention includes membranes comprising one or more cellulosic materials and wetting agent(s), and methods of making such membranes.

公开(公告)号：US20240278209A1

公开(公告)日：2024-08-22

申请号：US18569419

申请日：2022-06-15

Applicant: University of Maine System Board of Trustees

Inventor： Islam Hafez ,  Mehdi Tajvidi ,  Md Musfiqur Rahman ,  Aria Amirbahman

IPC: B01J20/24 ,  B01J20/28 ,  B01J20/32 ,  C02F1/28 ,  C02F101/10

CPC classification number: B01J20/24 ,  B01J20/28007 ,  B01J20/28028 ,  B01J20/28047 ,  B01J20/3236 ,  B01J20/3282 ,  C02F1/288 ,  C02F2101/103 ,  C02F2305/08 ,  C02F2307/14

Abstract: The present disclosure provides compositions for removing one or more toxic species, such as arsenic, one or more metalloids, or one or more other toxic elements and/or molecules, by, for example adsorption, methods of forming such compositions, and methods of using such compositions. In particular, in certain embodiments, a composition for removing one or more toxic species from a fluid (e.g., water) includes a cellulose-based matrix and a plurality of metal oxide particles dispersed throughout the matrix. The cellulose-based matrix may be a network and/or may be a cellulose fibril matrix, such as a cellulose nanofibril (CNF) matrix. The cellulose-based matrix may be an aerogel, for example a CNF aerogel. The metal oxide particles may be iron oxide particles, such as iron oxide nanoparticles. In some embodiments, a composition comprises metal oxide (e.g., iron oxide) particles (e.g., nanoparticles) dispersed in a cellulose fibril (e.g., CNF) aerogel matrix.

公开(公告)号：US11873582B2

公开(公告)日：2024-01-16

申请号：US16762082

申请日：2018-11-15

Applicant: University of Maine System Board of Trustees

Inventor： Douglas J. Gardner ,  Lu Wang ,  Jordan Elliott Sanders

IPC: D01F6/04 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/118 ,  B33Y70/10 ,  C08K7/02 ,  C08L23/12 ,  C08L23/14 ,  C08L23/10 ,  B29K1/00 ,  B29K101/12 ,  B29K105/12

CPC classification number: D01F6/04 ,  B29C64/118 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/10 ,  C08K7/02 ,  C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  B29K2001/00 ,  B29K2101/12 ,  B29K2105/124 ,  C08L2205/16 ,  C08L23/12 ,  C08L51/06 ,  C08L1/02

Abstract: Presented herein are materials, methods, and systems for the improved 3D printing improved 3D printing of materials that include polypropylene. In some embodiments, the present disclosure provides a composite comprising a polymer matrix and a plurality of fibers for improved 3D printing. For example, the polymer matrix may have a composition that includes a polymer blend of polypropylene (PP) and polyethylene (PE) (e.g., high density polyethylene (HDPE), low density polyethylene (LDPE), linear low-density polyethylene (LLDPE)), impact modified polypropylene copolymer and/or polypropylene random copolymer with a plurality of fibers. In some embodiments, the plurality of fibers comprises cellulosic nanofibers (e.g., natural cellulosic nanofibers, e.g., cellulose nanofibrils). In some embodiments, filaments are prepared from the composites by melt compounding the polymer matrix (e.g., PP copolymers and/or PP/PE pellets) with a plurality of fibers and extruding the mixture.

公开(公告)号：US20230406770A1

公开(公告)日：2023-12-21

申请号：US18335922

申请日：2023-06-15

Applicant: Board of Regents, The University Of Texas System ,  The University of Maine System Board of Trustees

Inventor： Warda Ashraf ,  Rakibul I. Khan ,  Muhammad Intesarul Haque

IPC: C04B24/12 ,  C04B28/18 ,  C04B28/08 ,  C04B40/02

CPC classification number: C04B24/123 ,  C04B28/188 ,  C04B28/08 ,  C04B40/0231

Abstract: Amino acid-containing carbonated composites of silicate-containing cementitious materials and methods of making the same, are disclosed. The carbonated composites contain polymorphs of CaCO3, that are controlled in terms of type (i.e., relative proportion) and size when compared to the same composites formed without amino acids and show improved mechanical properties. Methods of making carbonated silicate-containing cementitious materials with improved properties include supplementing a silicate-containing cementitious material with one or more amino acids prior to carbonation, in effective amounts to confer to the resulting carbonated composite material has one of the following properties when compared to composite materials cured under the same conditions in the absence of the one or more amino acids.

公开(公告)号：US11485850B2

公开(公告)日：2022-11-01

申请号：US15911506

申请日：2018-03-05

Applicant: University of Maine System Board of Trustees

Inventor： Michael A. Bilodeau ,  Jonathan Spender

IPC: C08L67/04 ,  C08L67/02 ,  C08K3/30 ,  C08L1/02 ,  C08K3/22 ,  C08K3/34 ,  C09D167/04

Abstract: Disclosed are processes for making polymeric composite materials and composite materials made from those processes, the process comprising: providing a mixture, comprising: a liquid, a polymer precursor, and a dispersed-phase precursor; and subjecting the mixture to reaction conditions sufficient: to effect polymerization of the polymer precursor to produce a polymer and a reaction product; and to remove substantially all the liquid and reaction product from the mixture; wherein said reaction conditions comprise: pressure between about 10 millitorr and about 300 torr; and temperature: greater than or equal to the highest boiling point of the liquid and reaction product; less than the decomposition temperature of the polymer; and less than the decomposition temperature of the dispersed-phase precursor.

公开(公告)号：US20210071366A1

公开(公告)日：2021-03-11

申请号：US17095469

申请日：2020-11-11

Applicant: University of Maine System Board of Trustees

Inventor： Michael Darin Mason ,  David Gregg Holomakoff ,  Muhammad Radowan Hossen

IPC: D21H11/18 ,  D21C9/18 ,  D21H17/25 ,  D21C9/00 ,  C08L1/02 ,  D21H21/22 ,  D21H17/67

Abstract: The present invention provides, inter alia, biocompatible porous structural materials made exclusively or almost exclusively from nanocellulose fibers (CNF), CNC, or bacterial cellulose, as well as processes for making and using provided compositions. Provided compositions may possess specifically tailored mechanical strength properties and have a design-controlled porosity that is homogeneous or graded, depending on the application. Provided compositions may be manufactured by the controlled dewatering of suspensions of CNF. In some embodiments, provided compositions may include a solids concentration of about 10% to about 95% by weight. Controlled water removal and pore homo- or heterogeneity may be accomplished by controlling capillary, hydrostatic and evaporative processes in the environment of a porous mold around the CNF slurry. A freeze drying or vacuum drying step may be used to complete the drying process, locking in the porous network structure resulting in a predetermined porosity (pore volume/total volume), and pore size distribution.

公开(公告)号：US20210061866A1

公开(公告)日：2021-03-04

申请号：US16963645

申请日：2019-01-25

Applicant: BENCHMARK ANIMAL HEALTH LIMITED ,  UNIVERSITY OF MAINE SYSTEM BOARD OF TRUSTEES

Inventor： Sarah Elizabeth BARKER ,  Jessica Lynn PIESZ ,  Ian Robert BRICKNELL

IPC: C07K14/435 ,  A61K39/00 ,  A61P33/14

Abstract: Isolated proteins from caligid copepods, polynucleotides encoding the same, and antigens and vaccines comprising the same, in particular for the treatment or prevention of caligid copepod infection in fish. Proteins are peroxiredoxin-2 (Prx-2), fructose bisphosphate aldolase (FBP); enolase, transitionally-controlled tumour protein homolog (TCTP) and triosephosphate isomerase (TIM).

公开(公告)号：US20200330541A1

公开(公告)日：2020-10-22

申请号：US16759827

申请日：2018-11-15

Applicant: University of Maine System Board of Trustees

Inventor： Dorothy Klimis-Zacas ,  Panagiotis Tsakiroglou

IPC: A61K36/45 ,  A61P17/02 ,  A61P9/00 ,  A61K31/216

Abstract: Materials and methods for modulating endothelial cell migration, angiogenesis, and gene expression of VEGF, AKT1, RAC1, RHOA, and eNOS are described.

公开(公告)号：US10769790B2

公开(公告)日：2020-09-08

申请号：US16577238

申请日：2019-09-20

Applicant: University of Maine System Board of Trustees

Inventor： Andre Khalil ,  Kendra Ann Batchelder

IPC: G06T7/00 ,  G06T7/48 ,  A61B5/00 ,  A61B6/00 ,  A61B5/08 ,  A61B5/20

Abstract: The present invention provides, among other things, methods of identifying cancerous or pre-cancerous tissue including providing a first region of tissue from a subject, calculating a roughness exponent for the first region of tissue, and comparing the roughness exponent of the first region of tissue to 0.5, wherein a difference of less than 0.2 between the roughness exponent of the first region of tissue and 0.5 indicates that the tissue is cancerous or pre-cancerous. Additionally, the present invention provides methods including providing a first view of a region of tissue, providing a second view of a region of tissue, calculating a first fractal dimension for the first view of the region of tissue, and calculating a second fractal dimension for the second view of the region of tissue, wherein if the fractal dimension of at least one of the first fractal dimension and the second fractal dimension is in the fractal zone, the region of tissue is considered cancerous. Also provided are systems for performing these assessments.

公开(公告)号：US10667979B2

公开(公告)日：2020-06-02

申请号：US16086716

申请日：2017-03-23

Applicant: University of Maine System Board of Trustees

Inventor： Vincent Caccese ,  Elizabeth DePoy ,  Stephen Gilson ,  Ryan Michael Beaumont ,  James Everett Alexander, Jr.

IPC: A61H3/04

Abstract: An adaptive mobility device enables disabled users to ambulate with more security. The device includes a frame including two rear forks for a pair of rear wheels, and a pivotable front fork and wheel, steerable with a steering mechanism that alters the front wheel angle in response to pivoting of the forearms support bar. The support bar may optionally contain forearm rests on which the user may support his or her weight while reaching the handgrips for steering the device. The steering mechanism may provide for adjustment of the steering ratio.