Linear and Star Block Copolymer Nanoparticles Prepared by Heterogeneous RAFT Polymerization Using an ω,ω-Heterodifunctional Macro-RAFT Agent [0.03%]
通过异种RAFT聚合制备线形和星形嵌段共聚物纳米粒子
Jiarui Wu,Li Zhang,Ying Chen et al.
Jiarui Wu et al.
Herein, an ω,ω-heterodifunctional macromolecular reversible addition-fragmentation chain transfer (macro-RAFT) agent containing two different RAFT end groups was synthesized and employed to mediate aqueous photoinitiated RAFT dispersion p...
Modulating Polymerization Thermodynamics of Thiolactones Through Substituent and Heteroatom Incorporation [0.03%]
通过取代基和杂原子的引入调节硫代内酯开环聚合热力学行为
Kellie A Stellmach,McKinley K Paul,Mizhi Xu et al.
Kellie A Stellmach et al.
A central challenge in the development of next-generation sustainable materials is to design polymers that can easily revert back to their monomeric starting material through chemical recycling to monomer (CRM). An emerging monomer class th...
Comb Polyelectrolytes Stabilize Complex Coacervate Microdroplet Dispersions [0.03%]
结合聚电解质可稳定复凝聚微滴分散体系
Shang Gao,Samanvaya Srivastava
Shang Gao
Complex coacervate microdroplets are membraneless compartments that selectively sequester biological molecules from their surroundings and enhance bioreactions. Yet, their use as protocell models and bioreactors has been limited owing to a ...
Degradable Polyampholytes from Radical Ring-Opening Copolymerization Enhance Cellular Cryopreservation [0.03%]
可降解的两性共聚物通过自由基环开聚合反应增强细胞冷冻保存能力
Théo Pesenti,Chen Zhu,Natalia Gonzalez-Martinez et al.
Théo Pesenti et al.
Macromolecular cryoprotectants based on polyampholytes are showing promise as supplemental cryoprotectants alongside conventional DMSO-based freezing. Here we exploit radical ring-opening (ter)polymerization to access ester-containing cryop...
Organizing Nanoparticles in Semicrystalline Polymers by Modifying Particle Diffusivity [0.03%]
通过修改粒子扩散性来组织半结晶聚合物中的纳米粒子
Nicholas F Mendez,Abdullah S Altorbaq,Alejandro J Müller et al.
Nicholas F Mendez et al.
We have previously shown that semicrystalline polymers can be reinforced by adding nanoparticles (NPs) and then ordering them into specific motifs using the crystallization process. A key result we have found is that when the spherulite gro...
Sequence-Dependent Tyrosine-Containing Peptide Nanoassemblies for Sensing Tyrosinase and Melanoma [0.03%]
序列为依赖的酪氨酸含肽纳米组件用于酪氨酸酶和黑色素瘤检测
Jun Guo,Ruoyang Zhao,Feng Gao et al.
Jun Guo et al.
Tyrosine-containing peptide nanoassemblies have received tremendous attention because of their potential applications in biomedicine and nanomaterial fields. However, a current outstanding challenge is to direct the equilibrium between oxid...
Controllable Degradation of Polyurethane Thermosets with Silaketal Linkages in Response to Weak Acid [0.03%]
响应弱酸的硅内亚胺交联聚氨酯热固树脂可控降解性能研究
Shoupeng Zhang,Xiao-Qi Xu,Shenglong Liao et al.
Shoupeng Zhang et al.
Polyurethane (PU) thermosets offer great favors to our daily life on account of their excellent mechanical, physical, and chemical properties as well as appreciable biocompatibility. Nevertheless, PU waste is increasingly causing environmen...
Mild Hyperthermia-Assisted ROS Scavenging Hydrogels Achieve Diabetic Wound Healing [0.03%]
温和升温辅/ros清除水凝胶实现糖尿病伤口愈合
Xiaoliang Qi,Xianqin Tong,Shengye You et al.
Xiaoliang Qi et al.
Excessive reactive oxygen species (ROS) production induces oxidative damage to biomolecules, which can lead to the development of chronic diseases. Biocompatible hydrogel antioxidants composed of natural materials, such as polysaccharides a...
Electrostatic Repulsion Slows Relaxations of Polyelectrolytes in Semidilute Solutions [0.03%]
静电排斥减缓了半稀溶液中聚电解质的松弛现象
Ali H Slim,Winnie H Shi,Farshad Safi Samghabadi et al.
Ali H Slim et al.
We investigate the structure and dynamics of unentangled semidilute solutions of sodium polystyrenesulfonate (NaPSS) using small-angle neutron scattering (SANS) and neutron spin-echo (NSE) spectroscopy. The effects of electrostatic interact...
Subhajit Pal,Indradip Mandal,Andreas F M Kilbinger
Subhajit Pal
Terminal alkynes display high reactivity toward Ru-carbene metathesis catalysts. However, the formation of a less reactive bulky carbene hinders their homopolymerization. Simultaneously, the higher reactivity of alkynes does not allow effic...