Polyelectrolyte Complexes(聚电解质复合物)研究综述
Polyelectrolyte Complexes 聚电解质复合物 - This review article considers publications related to the use of polyelectrolyte complexes (PECs) in barrier films as a strategy to decrease the permeation of oxygen and other substances into and out from packages. [1] The physicochemical properties and pharmaceutical availability of benzocaine were evaluated and diffractograms and Fourier-transform infrared spectra of individual polymers and their polyelectrolyte complexes were compared. [2] Polyelectrolyte complexes of sodium alginate and gelatin obtained from cold-blooded fish were studied for potential application as structure-forming agents in food hydrogels. [3] Polyelectrolyte complexes due to their unique ability to change the properties under the external factors represent an example of systems with the feedback mechanism. [4] In this work the dynamics of the polymer repeat units are related to macroscopic dynamics in polyelectrolyte complexes, which are hydrated amorphous blends of charged polymers. [5] In the present paper, polyelectrolyte, polyelectrolyte complexes, deposition method for multilayer system, features, characterization of polyelectrolytes, and applications are reviewed. [6] ), we leverage on the preparation of “enzyme–polyelectrolyte complexes” (EPCs) to increase the enzyme stability. [7] This work proposes new methotrexate (MTX) loaded drug delivery systems (DDS) to treat rheumatoid arthritis via the intra-articular route: a poloxamer based thermosensitive hydrogel (MTX-HG), oligochitosan and hypromellose phthalate-based polyelectrolyte complexes (MTX-PEC) and their association (MTX-PEC-HG). [8] The study of polyelectrolyte complexes (PECs) for wood substrates is in its infancy, but PECs’ versatility and eco-friendly character are already recognized for fabric fire-retardancy fabrics. [9] Herein, we designed a glucose-responsive oral insulin delivery system based on polyelectrolyte complexes (PECs) for controlling the increasing postprandial glucose concentrations. [10] This paper investigates the structure, morphology and antimicrobial properties of silver-containing nanocomposites based on interpolyelectrolyte complexes (IPEC) of pectin with polyethylenimine, cationic starch or chitosan as a cationic polyelectrolyte. [11] Novel hemicellulose-based films from polyelectrolyte complexes (PECs) of chitosan and xylan from sugar cane bagasse were prepared and characterized. [12] The form of polyelectrolyte (acid or salt) influences significantly the chemical structure of the forming PPy-polyelectrolyte complexes, the use of the acid forms of flexible-chain polyelectrolytes leading, in general, to higher content of bipolaronic fragments. [13] These approaches using an inclusion complex and polyelectrolyte complexes have great potential in the regeneration of oral tissues. [14] DNA-chitosan (DNA-CS) hydrogels were prepared on the basis of interpolyelectrolyte complexes (IPEC) in a co-assembled regime by in situ charging of the polysaccharide in a DNA solution. [15] Here, we introduce (bio)polyelectrolyte complexes (PECs) consisting of gelatin and κ-carrageenan as the first brittle network and covalently crosslinked polyacrylamide (PAAm) as the second stretchable network to fabricate a highly stretchable and notch-insensitive gelatin/κ-carrageenan/PAAm hydrogel. [16] Although many studies address the formation of polyelectrolyte complexes (PECs), few explore strategies and tools to select the best working conditions and are often based on empirical choices. [17] Polyelectrolyte complexes (PECs) of hyaluronic acid (HA) and diethylaminoethyl dextran (DEAE-D), promising for biomedical applications, have been investigated with respect to physicochemical properties, mainly in terms of particle size and relative hydrophobicity as well as storage stability. [18] This study investigated the combination of different proportions of cationic chitosan and anionic carboxymethyl cellulose (CMC) for the development of polyelectrolyte complexes to be used as a carrier in a sustained-release system. [19] In this paper, the synthesis of three types of chitosan-based interbiopolyelectrolyte complexes (IBPECs) with olanzapine (OLZ) were evaluated. [20] A library of oppositely charged polypeptides was designed and synthesized to investigate the role of π-interactions on phase separation and secondary structures of polyelectrolyte complexes. [21] The effects of continuous and pulsed low energy EB were examined on polysaccharidic or on polyelectrolyte complexes (PEC) scaffolds by SEC-MALLS, FTIR and EPR. [22] We discuss recent progress in uncovering such relationships for polyzwitterions and polyelectrolyte complexes, with emphases on the synthetic strategies that were employed in systematic studies. [23] The polyelectrolyte complexes (PECs) are adaptable definitions shaped by electrostatic interaction between biopolymers with inverse charges. [24] The results of dissolution tests proved that strength of interactions have increased due to formation of polyelectrolyte complexes which exerted considerable influence on both the quantity of liberated drug and the speed of drug liberation. [25] Moreover, we found that the concentration of particle-polyelectrolyte complexes and polyelectrolyte in the dispersions used in emulsification greatly influence the mean diameter of the emulsions and their microstructure. [26] In this study, volatile perfume was encapsulated in microcapsules (MCs) via interpolyelectrolyte complexes (IPECs) of oppositely charged polymers, with high encapsulation efficiency, to be delivered in a sustained manner. [27] It indicated the electrostatic nature of the polyelectrolyte complexes of the anthocyanin pigment with anionic polysaccharides. [28] Polyelectrolyte multilayers (PEMs) were assembled by means of alternate electrostatic adsorption of polyanions and polycations using colloidal structure of polyelectrolyte complexes (PECs) as LbL building blocks. [29] Polyelectrolytes have been used alone, or in combination with nonionic polymers as interpolyelectrolyte complexes, or after the addition of small molecular additives. [30] The emulsification by polyelectrolyte complexes is easy to handle, and could be considered as an effective strategy for introducing functional materials to liquid-liquid interfaces, but the related studies are still insufficient. [31] We present chitosan (CHT)/heparin (HP) polyelectrolyte complexes (PECs) that quickly adsorb citrate-capped silver nanoparticles (AgNPs). [32] As a substitute of natural peroxidase, herein, biopolymer-based polyelectrolyte complexes (PECs) coordinated with Fen+ is proposed as macromolecular peroxidase mimicking systems. [33] These findings should be helpful for understanding the assembly of asymmetric (linear / branched) polyelectrolyte complexes, as well as for designing new hierarchical PIC vesicles for controlled delivery of multiple active substances. [34] It has been demonstrated that by varying the molar ratio in Pillar[5]arene-surfactant systems, it is possible to obtain various types of supramolecular systems: host–guest complexes at equimolar ratio of Pillar[5]arene-surfactant and interpolyelectrolyte complexes (IPECs) are self-assembled materials formed in aqueous medium by two oppositely charged polyelectrolytes (macrocycle and surfactant micelles). [35] Polyelectrolyte complexes (PECs) of biopolymers have been used for many applications, including emulsion stabilization and improvements in the properties of biopolymers, such as interfacial tension. [36] Polyelectrolyte complexes of chitosan (Ch) and pectin (Pc) or alginate (Alg) were produced in the presence or absence of the silicone gel Silpuran® 2130 A/B (Sil) and the surfactant Kolliphor® P188 (Kol). [37] In this work, polyelectrolyte complexes (PEC) were obtained in form of nanometric polyelectrolyte multilayers (PEMs) and macroscopic hydrogels by electrostatic interactions between two natural polysaccharides: hyaluronic acid (HA) and chitosan (CHI). [38] Hydrogels were prepared from colloidal suspensions of polyelectrolyte complexes of xylan (Xyl) and chitosan (Ch) (mass ratio: 70 wt% Xyl/30 wt% Ch). [39] Film membranes were prepared from interpolyelectrolyte complexes of various aliphatic polyamines with a copolyamide synthesized from isophthalic dichloride and two diamines: disodium 4,4′-diaminobiphenyl-2,2′-disulfonate and 4,4′-diaminodiphenylmethane-2,2′-dicarboxylic acid. [40] Water held in the nanopores of the ECM acts a plasticizer and controls the ductility of FBCs in close analogy with polyelectrolyte complexes. [41] Interpolyelectrolyte complexes (IPECs) were obtained from linear polyanion poly (2-acrylamido-2-methylpropanesulfonic acid) (pAMPS) and comb-like polycation poly(11-acryloyloxyundecyltrimethylammonium) bromide (pAUTA-Br) using different strategies comprising of mixing polyelectrolyte solutions in homogeneous and heterogeneous conditions and the polymerization of ionic monomer in the presence of opposite-charged polyelectrolyte. [42] The interaction between the anionic hyaluronic acid and the cationic pentamidine and the formation of polyelectrolyte complexes of them were firstly studied. [43] The polymerization leads to the formation of polyaniline-sulfonated poly(2,6-dimethyl-1,4-phenylene oxide) interpolyelectrolyte complexes in which polyaniline is in the protonated form (as emeraldine salt). [44] An impedimetric DNA sensor is developed for the highly sensitive determination of doxorubicin; the signal is charge transfer resistance recorded by electrochemical impedance spectroscopy using a glassy carbon electrode modified by electropolymerized Neutral Red or polyaniline and polyelectrolyte complexes including DNA. [45] Here we report the preparation and study of polyelectrolyte complexes (PECs) from sodium hyaluronate (HA) and poly[tris(hydroxypropyl)(4-vinylbenzyl)phosphonium chloride], poly[triphenyl(4-vinylbenzyl)phosphonium chloride], poly[tri(n-butyl)(4-vinylbenzyl)phosphonium chloride] or poly[triethyl(4-vinylbenzyl)phosphonium chloride]. [46] Conditions for the preparation of stable to sedimentation aqueous dispersions of interpolyelectrolyte complexes based on chitosan (Chit) and pectin (Pect) with particle diameter 0. [47] In this context, we investigate by spectrophotometry the effect of several physical-chemical parameters and it was found that (AMxSTyAMPSz) induced metachromasy in the dye, following the appearance of a new blue shifted band with respect to monomer absorption, confirming thus the formation of dye-polyelectrolyte complexes. [48] Polyelectrolyte complexes (PEC) formed between cationic chitosan (CHT) and anionic polymers of cyclodextrin (PCD) render a hydrogel of great interest. [49] In contrast to formation of polyelectrolyte-surfactant and interpolyelectrolyte complexes, formation of polyelectrolyte complexes with low molecular weight oligovalent organic counterions is almost not studied. [50]这篇评论文章考虑了与在阻隔膜中使用聚电解质复合物 (PEC) 相关的出版物,作为减少氧气和其他物质从包装中渗入和渗出的策略。 [1] 评估了苯佐卡因的物理化学性质和药物有效性,并比较了单个聚合物及其聚电解质复合物的衍射图和傅里叶变换红外光谱。 [2] 研究了从冷血鱼中获得的海藻酸钠和明胶的聚电解质复合物作为食品水凝胶中的结构形成剂的潜在应用。 [3] 聚电解质复合物由于其在外部因素下改变性质的独特能力,代表了具有反馈机制的系统的一个例子。 [4] 在这项工作中,聚合物重复单元的动力学与聚电解质复合物的宏观动力学有关,聚电解质复合物是带电聚合物的水合无定形混合物。 [5] 本文综述了聚电解质、聚电解质复合物、多层体系的沉积方法、聚电解质的特性、表征和应用。 [6] ),我们利用“酶-聚电解质复合物”(EPC)的制备来提高酶的稳定性。 [7] 这项工作提出了新的甲氨蝶呤 (MTX) 负载药物递送系统 (DDS),以通过关节内途径治疗类风湿性关节炎:基于泊洛沙姆的热敏水凝胶 (MTX-HG)、低聚壳聚糖和基于邻苯二甲酸羟丙甲纤维素的聚电解质复合物 (MTX-PEC)及其协会(MTX-PEC-HG)。 [8] 用于木质基材的聚电解质复合物 (PECs) 的研究尚处于起步阶段,但 PECs 的多功能性和环保特性已在织物阻燃织物中得到认可。 [9] 在此,我们设计了一种基于聚电解质复合物 (PEC) 的葡萄糖响应型口服胰岛素递送系统,用于控制餐后葡萄糖浓度的增加。 [10] 本文研究了基于果胶与聚乙烯亚胺、阳离子淀粉或壳聚糖作为阳离子聚电解质的聚电解质间络合物 (IPEC) 的含银纳米复合材料的结构、形态和抗菌性能。 [11] 制备并表征了来自甘蔗渣中壳聚糖和木聚糖的聚电解质复合物 (PEC) 的新型半纤维素基薄膜。 [12] 聚电解质(酸或盐)的形式显着影响形成的 PPy-聚电解质复合物的化学结构,使用酸形式的柔性链聚电解质通常会导致更高含量的双极性碎片。 [13] 这些使用包合复合物和聚电解质复合物的方法在口腔组织再生方面具有巨大潜力。 [14] DNA-壳聚糖 (DNA-CS) 水凝胶是基于聚电解质间复合物 (IPEC) 在共组装方案中通过在 DNA 溶液中原位充电多糖而制备的。 [15] 在这里,我们介绍了由明胶和 κ-角叉菜胶组成的(生物)聚电解质复合物(PEC)作为第一个脆性网络,共价交联聚丙烯酰胺(PAAm)作为第二个可拉伸网络,以制造高度可拉伸和缺口不敏感的明胶/κ-角叉菜胶/PAAm 水凝胶。 [16] 尽管许多研究涉及聚电解质复合物 (PEC) 的形成,但很少有人探索选择最佳工作条件的策略和工具,并且通常基于经验选择。 [17] 透明质酸 (HA) 和二乙氨基乙基葡聚糖 (DEAE-D) 的聚电解质复合物 (PEC) 有望用于生物医学应用,已经对其物理化学性质进行了研究,主要是在粒径和相对疏水性以及储存稳定性方面。 [18] 本研究调查了不同比例的阳离子壳聚糖和阴离子羧甲基纤维素 (CMC) 的组合,用于开发用作缓释系统载体的聚电解质复合物。 [19] 本文对三种壳聚糖基生物间聚电解质复合物(IBPECs)与奥氮平(OLZ)的合成进行了评价。 [20] 设计并合成了一个带相反电荷的多肽库,以研究 π 相互作用对聚电解质复合物的相分离和二级结构的作用。 [21] 通过 SEC-MALLS、FTIR 和 EPR 检测了连续和脉冲低能量 EB 对多糖或聚电解质复合物 (PEC) 支架的影响。 [22] 我们讨论了在揭示多两性离子和聚电解质复合物的这种关系方面的最新进展,重点是系统研究中采用的合成策略。 [23] 聚电解质复合物 (PEC) 是由具有反电荷的生物聚合物之间的静电相互作用形成的适应性定义。 [24] 溶出试验结果证明,由于形成聚电解质复合物,相互作用的强度增加,这对药物释放量和药物释放速度都有很大影响。 [25] 此外,我们发现用于乳化的分散体中颗粒-聚电解质复合物和聚电解质的浓度极大地影响了乳液的平均直径及其微观结构。 [26] 在这项研究中,挥发性香料通过带相反电荷的聚合物的聚电解质间复合物 (IPECs) 被封装在微胶囊 (MCs) 中,具有高封装效率,以持续的方式传递。 [27] 它表明了花青素色素与阴离子多糖的聚电解质复合物的静电性质。 [28] 使用聚电解质复合物 (PEC) 的胶体结构作为 LbL 构件,通过聚阴离子和聚阳离子的交替静电吸附来组装聚电解质多层 (PEM)。 [29] 聚电解质已单独使用,或与非离子聚合物组合用作聚电解质间复合物,或在添加小分子添加剂后使用。 [30] 聚电解质复合物的乳化操作简单,可被认为是一种将功能材料引入液-液界面的有效策略,但相关研究尚不充分。 [31] 我们提出了壳聚糖 (CHT)/肝素 (HP) 聚电解质复合物 (PEC),可快速吸附柠檬酸盐封端的银纳米颗粒 (AgNPs)。 [32] 作为天然过氧化物酶的替代品,本文提出了与 Fen+ 配位的基于生物聚合物的聚电解质复合物 (PEC) 作为大分子过氧化物酶模拟系统。 [33] 这些发现应该有助于理解不对称(线性/支化)聚电解质复合物的组装,以及设计新的分层 PIC 囊泡以控制多种活性物质的递送。 [34] 已经证明,通过改变 Pillar[5] 芳烃-表面活性剂体系中的摩尔比,可以获得各种类型的超分子系统:Pillar[5] 芳烃-表面活性剂等摩尔比的主客体配合物和聚电解质间配合物( IPEC)是由两种带相反电荷的聚电解质(大环和表面活性剂胶束)在水介质中形成的自组装材料。 [35] 生物聚合物的聚电解质复合物 (PEC) 已用于许多应用,包括乳液稳定性和生物聚合物性能的改进,例如界面张力。 [36] 在存在或不存在硅胶 Silpuran® 2130 A/B (Sil) 和表面活性剂 Kolliphor® P188 (Kol) 的情况下,制备壳聚糖 (Ch) 和果胶 (Pc) 或藻酸盐 (Alg) 的聚电解质复合物。 [37] 在这项工作中,通过两种天然多糖:透明质酸(HA)和壳聚糖(CHI)之间的静电相互作用,以纳米聚电解质多层(PEM)和宏观水凝胶的形式获得聚电解质复合物(PEC)。 [38] 水凝胶由木聚糖 (Xyl) 和壳聚糖 (Ch) 的聚电解质复合物的胶体悬浮液制备(质量比:70 wt% Xyl/30 wt% Ch)。 [39] 膜是由各种脂肪族多胺与由间苯二甲酸二氯化物和两种二胺合成的共聚酰胺的聚电解质复合物制备的:4,4'-二氨基联苯-2,2'-二磺酸二钠和 4,4'-二氨基二苯甲烷-2,2'-二羧酸二钠酸。 [40] 保持在 ECM 纳米孔中的水充当增塑剂并控制 FBC 的延展性,与聚电解质复合物非常相似。 [41] 使用不同的策略,包括在均相和非均相条件以及在带相反电荷的聚电解质存在下离子单体的聚合。 [42] 首次研究了阴离子透明质酸与阳离子喷他脒的相互作用以及它们的聚电解质复合物的形成。 [43] 聚合导致形成聚苯胺-磺化的聚(2,6-二甲基-1,4-苯醚)聚电解质间复合物,其中聚苯胺为质子化形式(作为翠绿碱盐)。 [44] 开发了一种阻抗式 DNA 传感器,用于高灵敏度测定多柔比星;信号是通过电化学阻抗谱记录的电荷转移电阻,使用由电聚合中性红或聚苯胺和包括 DNA 在内的聚电解质复合物修饰的玻璃碳电极。 [45] 在这里,我们报告了由透明质酸钠(HA)和聚[三(羟丙基)(4-乙烯基苄基)氯化鏻]、聚[三苯基(4-乙烯基苄基)氯化鏻]、聚[三(正丁基)(4-乙烯基苄基)氯化鏻]或聚[三乙基(4-乙烯基苄基)氯化鏻]。 [46] 基于壳聚糖 (Chit) 和果胶 (Pect) 粒径为 0 的稳定至沉降水分散体的制备条件。 [47] 在这种情况下,我们通过分光光度法研究了几个物理化学参数的影响,发现 (AMxSTyAMPSz) 在染料中诱导异色性,在出现关于单体吸收的新蓝移带之后,证实了形成染料-聚电解质络合物。 [48] 阳离子壳聚糖 (CHT) 和环糊精的阴离子聚合物 (PCD) 之间形成的聚电解质复合物 (PEC) 使水凝胶备受关注。 [49] 与聚电解质-表面活性剂和聚电解质间络合物的形成相比,几乎没有研究与低分子量低聚有机反离子形成聚电解质络合物。 [50]
Form Polyelectrolyte Complexes 形成聚电解质复合物
When combined, polyelectrolytes with opposite charges spontaneously form polyelectrolyte complexes or multilayers, which have great functional versatility. [1] Chitosan (Chi) and 77KS, a lysine-derived surfactant, form polyelectrolyte complexes that reverse their charge from positive to negative at higher 77KS concentrations, forming aggregates that have been embedded with amoxicillin (AMOX). [2] While PEOX and poly(acrylic acid) (PAA) can form hydrogen-bonded polymer complexes that are precipitated from solution at low pH values, PEI and PAA can form polyelectrolyte complexes in the solutions with neutral pH values. [3] Alginate can be combined with chitosan to form polyelectrolyte complexes which can control the gelling strength and/or porosity of the delivery system. [4] The aim of this work was to form polyelectrolyte complexes (PECs) mesquite gum (MG) and chitosan (Ch), as a function of the biopolymer mixing ratio (RMG/Ch). [5] Chitosan being cationic in nature can form polyelectrolyte complexes with negatively charged DNA allowing nucleic acid condensation along with protection from nucleases, which is widely beneficial in gene therapies. [6]当结合时,具有相反电荷的聚电解质自发形成聚电解质复合物或多层,具有很强的功能通用性。 [1] 壳聚糖 (Chi) 和 77KS(一种源自赖氨酸的表面活性剂)形成聚电解质复合物,在更高的 77KS 浓度下将其电荷从正电荷反转为负电荷,形成嵌入阿莫西林 (AMOX) 的聚集体。 [2] 虽然 PEOX 和聚(丙烯酸) (PAA) 可以形成氢键聚合物络合物,在低 pH 值下从溶液中沉淀出来,但 PEI 和 PAA 可以在中性 pH 值的溶液中形成聚电解质络合物。 [3] 藻酸盐可以与壳聚糖结合形成聚电解质复合物,该复合物可以控制递送系统的胶凝强度和/或孔隙率。 [4] nan [5] nan [6]
Forming Polyelectrolyte Complexes 形成聚电解质复合物
2 g/g by forming polyelectrolyte complexes with dye molecules. [1] In this study, we synthesized calcium/dextran phosphate beads (Ca-DP) by ionic gelation method and chitosan/dextran phosphate capsules (CS-DP) by forming polyelectrolyte complexes as carriers for prospidine delivery. [2] The selected films were additionally modified with small amounts of anionic polysaccharides that have potential to interact with gelatin, forming polyelectrolyte complexes. [3] The aim of this work is to combined an artificial neural network (ANN) with the Ant Colony Optimization (ACO) to model the prolonged release profile of Valsartan (VAL), an antihypertensive drug formed in matrix tablets based on a mixture blend of carboxymethyl-kappa-carrageenan (CMKC) and chitosan (CTS) forming polyelectrolyte complexes (PECs). [4]2 g/g 通过与染料分子形成聚电解质复合物。 [1] 在这项研究中,我们通过离子凝胶法合成了钙/葡聚糖磷酸珠(Ca-DP)和壳聚糖/葡聚糖磷酸胶囊(CS-DP),通过形成聚电解质复合物作为丙啶递送的载体。 [2] 选定的薄膜还用少量的阴离子多糖进行了改性,这些阴离子多糖有可能与明胶相互作用,形成聚电解质复合物。 [3] 这项工作的目的是将人工神经网络 (ANN) 与蚁群优化 (ACO) 相结合,以模拟缬沙坦 (VAL) 的缓释曲线,缬沙坦 (VAL) 是一种基于羧甲基- κ-角叉菜胶 (CMKC) 和壳聚糖 (CTS) 形成聚电解质复合物 (PEC)。 [4]
Chitosan Polyelectrolyte Complexes
5) immobilized into alginate–chitosan polyelectrolyte complexes membrane. [1] Membranes of alginate-chitosan polyelectrolyte complexes produced have physical-mechanical properties including load, elongation and elasticity, water absorption and resistance better than the constituent polymers. [2] In this study we evaluate macroporous scaffolds made of alginate-chitosan polyelectrolyte complexes (PEC) as tools to optimize the results of soft tissues cell therapy. [3]5) 固定在藻酸盐-壳聚糖聚电解质复合物膜上。 [1] 所生产的藻酸盐-壳聚糖聚电解质复合物的膜具有比组成聚合物更好的物理机械性能,包括负载、伸长率和弹性、吸水性和电阻。 [2] nan [3]
Charged Polyelectrolyte Complexes
The optimized formulation showed a high gene binding ability, forming nano-sized positively charged polyelectrolyte complexes with DNA. [1] Coarse-grained molecular dynamics simulations have been applied to explore the adsorption of oppositely charged polyelectrolyte complexes (PECs) on an electronically neutral dipalmitoylphosphatidylcholine (DPPC) lipid bilayer. [2]优化后的配方显示出高基因结合能力,可与 DNA 形成纳米级带正电荷的聚电解质复合物。 [1] 粗粒度分子动力学模拟已用于探索带相反电荷的聚电解质复合物 (PEC) 在电子中性二棕榈酰磷脂酰胆碱 (DPPC) 脂质双层上的吸附。 [2]
Shell Polyelectrolyte Complexes
To overcome the weaknesses of CMC carriers, such as poor mechanical performance and an explosive drug release, zinc oxide (ZnO) nanoparticles were incorporated into CMC beads and then coated with a CS layer via a self-assembly technique to form core-shell polyelectrolyte complexes. [1] Then, Fe3O4@C nanoparticles were incorporated into CMC matrix and coated with chitosan layer via a self-assembly technique to form core-shell polyelectrolyte complexes (PECs). [2]为了克服CMC载体的机械性能差和药物爆炸性释放等弱点,将氧化锌(ZnO)纳米颗粒掺入CMC珠粒中,然后通过自组装技术包覆CS层,形成核-壳聚电解质复合物. [1] 然后,将 Fe3O4@C 纳米颗粒掺入 CMC 基质中,并通过自组装技术包覆壳聚糖层,形成核壳聚电解质复合物 (PEC)。 [2]
Insoluble Polyelectrolyte Complexes
Water-insoluble polyelectrolyte complexes of cellulose acetate sulphate in the form of sodium salt (Na-CAS) and aminoglycoside antibiotic (AB) kanamycin (KAN) were obtained by mixing of the components aqueous solutions. [1] It represents a versatile method to process insoluble polyelectrolyte complexes (PECs), as further demonstrated by the preparation of PEC microcapsules, porous monoliths and hybrid membranes. [2]通过将组分水溶液混合获得钠盐(Na-CAS)和氨基糖苷类抗生素(AB)卡那霉素(KAN)形式的醋酸硫酸纤维素的水不溶性聚电解质复合物。 [1] nan [2]
polyelectrolyte complexes formed
IQ was directly added to either suspensions of the isolated polysaccharides or polyelectrolyte complexes formed by their mixture before film casting. [1] Polyelectrolyte complexes formed between DNA and chitosan present different and interesting physicochemical properties combined with high biocompatibility; they are very useful for biomedical applications. [2] In this article, we report a comparison of oligonucleotide PCMs and polyelectrolyte complexes formed by poly(lysine) and poly((vinylbenzyl) trimethylammonium) (PVBTMA), a styrenic polycation with comparatively higher charge density, increased hydrophobicity, and a permanent positive charge. [3]在薄膜浇铸之前,将 IQ 直接添加到分离的多糖或由它们的混合物形成的聚电解质复合物的悬浮液中。 [1] DNA和壳聚糖之间形成的聚电解质复合物具有不同且有趣的物理化学性质以及高生物相容性;它们对生物医学应用非常有用。 [2] 在本文中,我们报告了由聚(赖氨酸)和聚((乙烯基苄基)三甲基铵)(PVBTMA)形成的寡核苷酸 PCM 和聚电解质复合物的比较,这是一种具有相对较高电荷密度、增加疏水性和永久正电荷的苯乙烯聚阳离子。 [3]
polyelectrolyte complexes lead
In article number 1900018 by Armando Cordova and co‐workers, the novel combination of metal‐free catalysis and renewable polyelectrolyte complexes leads to synergistic surface engineering of lignocellulose and cellulose fibers derived from wood. [1] The formation of surfactant–polyelectrolyte complexes leads to a decrease in the concentration thresholds of aggregation by an order of magnitude to form aggregates ~70 nm in size was established by tensiometry and fluorimetry. [2]在 Armando Cordova 及其同事的文章编号 1900018 中,无金属催化和可再生聚电解质络合物的新组合导致木质纤维素和源自木材的纤维素纤维的协同表面工程。 [1] 表面活性剂-聚电解质复合物的形成导致聚集的浓度阈值降低一个数量级,通过张力测定法和荧光测定法确定尺寸约为 70 nm 的聚集体。 [2]
polyelectrolyte complexes composed
Here, the properties of polyelectrolyte complexes composed of two random copolymer polyelectrolytes are studied experimentally and via simulation with the aim of exploiting such complexes for segregating organic molecules from water. [1] Specifically, polyelectrolyte complexes composed of heparin (Hep, a growth factor binding glycosaminoglycan) and poly-L-lysine (PLL, a homopolymeric lysine) were prepared via a pulse sonication method. [2]在这里,通过实验和模拟研究了由两种无规共聚物聚电解质组成的聚电解质复合物的性质,目的是利用这种复合物从水中分离有机分子。 [1] nan [2]