公开(公告)号：US12187818B2

公开(公告)日：2025-01-07

申请号：US18573887

申请日：2022-07-01

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY

Inventor： Hanging Jiang ,  Junchao Huang

IPC: C08B37/08 ,  A23L33/24 ,  C08J3/24 ,  C08J9/00 ,  C08K5/31 ,  C08L5/08

Abstract: Provided are a chitin-based superabsorbent materials and method of preparation thereof. The superabsorbent material comprises chitin crosslinked by an epoxy crosslinker, and guanidine attached to the crosslinked chitin. The preparation method includes dissolving chitin in an aqueous solvent to form a solution; reacting the dissolved chitin with an epoxy crosslinker and guanidine, or a salt thereof, thereby forming a hydrogel; and drying the hydrogel.

公开(公告)号：US12145152B1

公开(公告)日：2024-11-19

申请号：US18690486

申请日：2021-09-10

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY ,  HANGZHOU VANTRONICS BIOTECHNOLOGY CO. LTD.

Inventor： Hanging Jiang ,  Chao Liang ,  Senwei Xu

IPC: B01L3/00

Abstract: A pneumatic-driven fluidic cartridge and systems and methods for operating the same. The cartridge includes a substrate layer, an actuator layer, and an elastic layer. A fluid channel formed in a surface of the substrate layer includes a first chamber and a second chamber separated by a block section. The actuator layer includes a lever positioned to extend across the block section. The elastic layer is positioned between the substrate layer and the actuator layer. The lever applies a force to the elastic layer restricts fluid flow from the first chamber to the second chamber and is configured to bend outwardly opening a channel between the block section and the elastic layer exceeds the first threshold pressure.