Degradable Polyurethane(可降解聚氨酯)研究综述
Degradable Polyurethane 可降解聚氨酯 - For this purpose, we have synthesized biodegradable polyurethane (CL-PU) composed of e-CL and 4,4′-methylenebis(cyclohexyl isocyanate) (H12MDI) and 1,4 butanediol (1,4 BD). [1] In this study, we developed a softer SF graft by coating water-dispersed biodegradable polyurethane (PU) based on polycaprolactone and an SF composite sponge on the knitted SF vascular graft. [2] The most valuable features of biodegradable polyurethanes are good biocompatibility, bioactivity, bioconductivity, and injectability. [3] We previously reported the development of an osteogenic bone filler scaffold consisting of degradable polyurethane, hydroxyapatite, and decellularized bovine bone particles. [4] Biodegradable polyurethanes (PUs) were produced from castor oil (CO) and poly (3-hydroxybutyrate) diol (PHBD) using hexamethylene diisocyanate as a crosslinking agent. [5] Herein, we developed a self-healing hydrogel composed of biodegradable polyurethane (PU) nanoparticles and photo-/thermo-responsive gelatin-based biomaterials. [6] Herein, novel nanoporous membranes of bio-based cellulose acetate, poly(lactic acid) and biodegradable polyurethane in-situ impregnated with catalytic cobalt nanoparticles were synthesized and tested for the removal of Methylene Blue (MB) and Congo Red (CR) dyes from water. [7] To control crosslink density the mono-functional HEMA was incorporated into the biodegradable polyurethanes. [8] Previous studies have demonstrated that biodegradable polyurethane (PU) NPs exhibit immunosuppressive activity. [9] To this end, a coating of magnesium-particles doped biodegradable polyurethane (PU) was introduced as a composite layer on Ti surfaces using a simple spin coating technique. [10] In this work, a series of biodegradable polyurethanes (PURs) based on cholic acid (CA) and l -lysine diisocyanate ethyl ester (L-LDI) that are renewable difunctional building blocks is synthesized by step-growth polymerization. [11] A nontoxic and biodegradable polyurethane was prepared, characterized, and evaluated for biomedical applications. [12] Herein, a series of biodegradable polyurethane (PU)-gelatin hydrogel with tunable mechanical properties and degradation rates were developed as the bioink. [13] Recently, novel waterborne biodegradable polyurethane (WDPU) nanoparticles have been synthesized by a green water-based process, and serve as fundamental building blocks to form materials with great biocompatibility, biodegradability, and mechanical properties. [14] In this work, a series of biodegradable polyurethane (PU) hydrogels were successfully synthesized using two kinds of triol crosslinkers with different chain structures. [15] In this study, water-based 3D printing ink containing biodegradable polyurethane (PU), chemokine SDF-1, and Y27632 drug-embedding PU microspheres was printed at low temperature (-40 °C) to fabricate tissue engineering scaffolds with sequential drug release function. [16] MATERIALS AND METHODS Five new, biodegradable polyurethane and copolyester-based, antiadhesive barriers (A1, A2, A3, B1, and B2) were evaluated in separate experimental groups and compared with two control groups (hyaluronate carboxymethylcellulose barrier and no antiadhesive barrier) in an ischemic button model (n = 11 per group operated). [17] This manuscript reports on the synthesis of biodegradable polyurethanes (PU) using poly(ε-caprolactone) diol and fabrication of microspheres containing dexamethasone (DEX). [18] Therefore, two different approaches for surface modification of ND with biodegradable polyurethane by chemical of grafting-to and grafting-from are presented herein. [19] , separation of phases upon processing, use of solvents unaddressed by the European Pharmacopoeia, and use of degradable polyurethanes). [20] Thiolated biodegradable polyurethane (TG-DPU) was synthesized using a one-pot reaction with thioglycerol adopted as a functionalized chain extender. [21] In this work, we demonstrate the feasibility of obtaining a porous electrospun fibrous structure from biodegradable polyurethanes (Pus) synthesized using polycaprolactone-diol as soft segment and, as chain extenders, chitosan (CS) and/or dimethylol propionic acid. [22] In this study, we tested the applicability of a novel biodegradable polyurethane (PU) elastomer chain extended with fibrinogen (Fib) to fulfill these requirements. [23] Using bio-derived cellulose nanocrystals (CNCs) to reinforce the mechanical properties of biodegradable polyurethanes (PUs) is a promising approach especially when attempting to fabricate fully sustainable materials with high performance. [24] The biodegradable polyurethane, which contained multiple chemistry function and which has previously demonstrated anti-inflammatory properties in film and mm scale scaffold form, was selected as the base material. [25] In this study, several types of sulfobetaine (SB)-bearing biodegradable polyurethanes were developed and assessed as physical, chemical, and combination-type coatings for a model degradable Mg alloy, AZ31. [26]为此，我们合成了由 e-CL 和 4,4'-亚甲基双(环己基异氰酸酯) (H12MDI) 和 1,4 丁二醇 (1,4 BD) 组成的可生物降解聚氨酯 (CL-PU)。 [1] 在这项研究中，我们通过在针织 SF 血管移植物上涂覆基于聚己内酯和 SF 复合海绵的水分散可生物降解聚氨酯 (PU)，开发了一种更柔软的 SF 移植物。 [2] 可生物降解聚氨酯最有价值的特性是良好的生物相容性、生物活性、生物导电性和可注射性。 [3] 我们之前报道了由可降解聚氨酯、羟基磷灰石和脱细胞牛骨颗粒组成的成骨骨填充支架的开发。 [4] 使用六亚甲基二异氰酸酯作为交联剂，由蓖麻油 (CO) 和聚 (3-羟基丁酸酯) 二醇 (PHBD) 生产可生物降解聚氨酯 (PU)。 [5] 在此，我们开发了一种由可生物降解的聚氨酯 (PU) 纳米颗粒和光/热响应明胶基生物材料组成的自修复水凝胶。 [6] 在此，合成了新型的生物基醋酸纤维素、聚乳酸和原位浸渍催化钴纳米颗粒的可生物降解聚氨酯纳米多孔膜，并测试了从水中去除亚甲基蓝 (MB) 和刚果红 (CR) 染料的效果。 . [7] 为了控制交联密度，将单官能 HEMA 加入到可生物降解的聚氨酯中。 [8] 先前的研究表明，可生物降解的聚氨酯 (PU) NPs 具有免疫抑制活性。 [9] nan [10] nan [11] nan [12] nan [13] nan [14] nan [15] nan [16] nan [17] nan [18] nan [19] nan [20] nan [21] nan [22] nan [23] nan [24] nan [25] nan [26]
degradable polyurethane scaffold
Extensive deep burn management with a two-stage strategy can reduce reliance on skin autografts; a biodegradable polyurethane scaffold to actively temporise the wound and an autologous composite cultured skin (CCS) for definitive closure. [1] MethodsNon-biodegradable polyurethane scaffolds were manufactured and modified with plasma surface modification using argon gas (PM). [2]采用两阶段策略的广泛深度烧伤管理可以减少对自体皮肤移植物的依赖；一种可生物降解的聚氨酯支架，用于主动缓和伤口和用于最终闭合的自体复合培养皮肤（CCS）。 [1] nan [2]
degradable polyurethane elastomer 可降解聚氨酯弹性体
Transparent and degradable polyurethane elastomers with high strength and toughness are in demand for various applications, such as tissue engineering and flexible electronics. [1] A new class of patent pending aqueous degradable polyurethane elastomers have been developed that can be used in oil & gas exploration, drilling, completion and production where a degradable part is needed to provide a useful service life then quickly degrade when exposed to heat and water. [2]组织工程和柔性电子等各种应用都需要具有高强度和韧性的透明可降解聚氨酯弹性体。 [1] 已开发出一类新的正在申请专利的水性可降解聚氨酯弹性体，可用于石油和天然气勘探、钻井、完井和生产，其中需要可降解部件以提供有用的使用寿命，然后在暴露于热和水中时迅速降解。 [2]