这是我们最新精选的有关聚丙烯酸钠和超强吸水聚合物的全球出版物和专利，涉及许多科学在线期刊，分类并侧重于聚丙烯酸钠、超强吸水、超级吸水、吸水、聚丙烯酸酯、水凝胶、水锁和尿布。.
Hydrolytic evolution of the structure and rheology of a biodegradable hydrogel bearing poly(<i>D</i>,<i>L</i>-lactic acid)
Published on 2026-07-10 by Seonhye Hwang, Junho Lee, Hye Jin Oh, Seon Yeop Jung, Seyoung Kim @NATURE
Abstract: Polymer Journal, Published online: 10 July 2026; doi:10.1038/s41428-026-01227-9The hydrolysis behavior of PLA-bearing physical hydrogels was investigated using synchronized NMR, small-angle neutron scattering (SANS), and small-amplitude oscillatory shear (SAOS). During hydrolysis, water progressively penetrated and swelled the PLA nanodomains, as revealed by in situ SANS analysis. Although the hydrogels maintained their elastic nature throughout degradation, the storage modulus continuously decr[...]
Our summary: The study investigates the hydrolysis behavior of PLA-bearing hydrogels using NMR, SANS, and SAOS. Water penetration and swelling of PLA nanodomains were observed during hydrolysis. The hydrogels retained elasticity, but the storage modulus decreased as hydrolysis progressed, linking hydrolysis kinetics to mechanical degradation.
hydrolysis, biodegradable, hydrogel, rheology
Publication
Hydrogel comprising functional peptide adjustable in physical properties
Patent published on the 2026-07-02 in WO under Ref WO2026142325 by KOREA INST OF MATERIALS SCIENCE [KR] (Park Hong-hyun [kr], Choi Yeong-jin [kr], Yun Hui-suk [kr], Gal Chang-woo [kr])
Abstract: The present invention provides a hydrogel and a bioprinting method using same, the hydrogel comprising a modified functional peptide and a tyrosine-containing biodegradable polymer, wherein the modified functional peptide has tyrosine-containing linkers connected to both ends of a functional peptide, and spacers are independently interposed between the linkers and at least one of the two ends. In the present invention, the flexibility of a bioprinted structure can be adjusted by adjusting the sp[...]
Our summary: The invention presents a hydrogel with a modified functional peptide and a biodegradable polymer. It allows for the adjustment of physical properties through spacer length variation. This enables control over the flexibility of bioprinted structures.
Hydrogel, functional peptide, bioprinting, biodegradable polymer
Patent
Absorbent article
Patent published on the 2026-07-02 in WO under Ref WO2026141400 by UNICHARM CORP [JP] (Ueda Masumi [jp], Isogai Tomomi [jp])
Abstract: This diaper comprises an absorbent body including: a front surface sheet disposed on a skin surface side of a wearer; a back surface sheet disposed on a non-skin surface side opposite to the skin surface side; and an absorber having an SAP sheet including a superabsorbent polymer, the absorber being disposed between the front surface sheet and the back surface sheet. A guide mark for guiding a position at which a part of the body of the wearer is to be placed is formed on the absorbent body. The[...]
Our summary: This diaper features an absorbent body with a front surface sheet and a back surface sheet. It includes an absorber with a superabsorbent polymer sheet positioned between the two surface sheets. A guide mark is present to indicate the correct positioning for the wearer s body.
absorbent article, superabsorbent polymer, diaper design, guide mark
Patent
Draining mat
Patent published on the 2026-07-02 in US under Ref US20260182819 by XIAMEN YD SPORTS CO LTD [CN] (Luo Yongli [cn])
Abstract: [0000] The present invention discloses a plurality of water-absorbing plates and draining nets, each draining net is wrapped around the periphery of each water-absorbing plate, and each draining net has a plurality of draining holes, so that when an item is placed on the plurality of draining nets, the plurality of water-absorbing plates can absorb the water flowing from the item into the plurality of draining holes; when the plurality of water-absorbing plates are provided as two or more, each [...]
Our summary: The invention features water-absorbing plates surrounded by draining nets with holes. These plates can be magnetically connected to form a customizable draining mat of varying sizes. The detachable design enhances portability and convenience for users.
draining mat, water-absorbing plates, magnetic connection, detachable design
Patent
Contact lenses that facilitate the spreading of liquid
Patent published on the 2026-07-01 in GB under Ref GB2702933 by COOPERVISION INTERNATIONAL LTD [GB] (Ian Gibson [gb], William Mitchell [gb], Maria Carradus [gb], Katarzyna Piskorczyk [gb], Benjamin S Sheader [gb], Laura Simpson [gb], David Robert Morsley [gb])
Abstract: A silicon hydrogel contact lens which comprises all of (i) at least 10% by weight of a monofunctional siloxane monomer comprising a (meth)acrylate group, a polysiloxane linked by a urethane linkage, (preferably one of the structure of Formula (I) (see claim 6), (ii) at least 15% by weight of a difunctional siloxane and (iii)at least 30% by weight of an N-vinyl amide monomer, preferably N-vinyl N-methyl acetamide. In some embodiments, N-vinyl pyrrolidone may also be included. Preferably the difun[...]
Our summary: The invention describes a silicon hydrogel contact lens designed to enhance liquid spreading. It includes specific percentages of monofunctional and difunctional siloxane monomers along with N-vinyl amide monomers. The formulation aims to improve the performance and comfort of contact lenses.
silicon hydrogel, contact lenses, siloxane monomer, N-vinyl amide
Patent
Injectable hydrogels for cartilage regeneration
Patent published on the 2026-06-25 in WO under Ref WO2026136407 by UNIV WASHINGTON [US] (Zhang Miqin [us], Noguchi Aya [jp], Lin Xiaojie [us], Kyomoto Masayuki [jp])
Abstract: A method for delivering stem cells for cartilage regeneration comprising substantially simultaneously administering a first composition comprising a chitosan-hydrogel precursor and a second composition comprising a hyaluronic acid-hydrogel precursor to a site in need of cartilage regeneration to provide an in situ stem cell-containing chitosan/hyaluronic acid hydrogel at the site.[...]
Our summary: This method involves administering a chitosan-hydrogel precursor and a hyaluronic acid-hydrogel precursor simultaneously. The goal is to create a stem cell-containing hydrogel at the cartilage regeneration site. This approach aims to enhance the effectiveness of stem cell delivery for cartilage repair.
Injectable hydrogels, cartilage regeneration, stem cell delivery, chitosan-hyaluronic acid
Patent
Porous scaffolds for engineering micro-structured biomimetic material for vascularized retinal epithelial tissue models
Patent published on the 2026-06-25 in WO under Ref WO2026131867 by UNIV PARIS XIII PARIS NORD [FR] (Letourneur Didier [fr], Huang Xiaochen [fr], Dujardin ChloÉ [fr], Simon Yarza Teresa [fr])
Abstract: Here, the inventors propose a scaffold-driven approach, based on a 3D structured hydrogel polysaccharide membrane. The membrane is structured by freeze-drying to meet with the outer blood-retinal barrier (oBRB) structural requirements, namely a non-porous side to grow the retinal pigment epithelial (RPE) cells and, an inner 3D porous network for the choroidal vascularization, within the physiological thickness. A functional oBRB 3D model was obtained by cultivating RPE cells on top of the membra[...]
Our summary: This invention presents a scaffold-driven method using a 3D hydrogel polysaccharide membrane for retinal epithelial tissue models. The membrane features a non-porous side for retinal pigment epithelial cell growth and a 3D porous network for vascularization. The approach yields a biocompatible, functional outer blood-retinal barrier model suitable for research and application.
scaffolds, biomimetic, hydrogel, vascularization
Patent
Multiscale design of hydrogel networks via hydrophilic side-chain length control
Published on 2026-06-16 by Takuma Kureha @NATURE
Abstract: Polymer Journal, Published online: 16 June 2026; doi:10.1038/s41428-026-01213-1Hydrogel networks with short and long hydrophilic ethylene oxide side chains exhibit distinct gelation behavior, mechanical deformation, nanoscale domain structures, and polymer/nanoparticle dynamics. This focus review summarizes recent studies showing how side-chain-length control governs these multiscale properties through gelation analysis, compression testing, scattering, rheology, and diffusion measurements. Thes[...]
Our summary: This review discusses how varying hydrophilic side-chain lengths in hydrogel networks affects gelation behavior and mechanical properties. It summarizes studies on the impact of side-chain length on nanoscale structures and dynamics. The findings emphasize side-chain engineering as a strategy for linking network architecture to macroscopic performance in hydrogels.
Hydrogel networks, Side-chain length, Gelation behavior, Mechanical properties
Publication
