Self-assembly of Pluronics: A critical review and relevant applications

被引:4
|
作者
Di Spirito, Nicola Antonio [1 ]
Grizzuti, Nino [1 ]
Pasquino, Rossana [1 ]
机构
[1] Univ Napoli Federico II, DICMaPI, Ple Tecchio 80, I-80125 Naples, Italy
关键词
PEO TRIBLOCK COPOLYMER; SALT SODIUM GLYCODEOXYCHOLATE; BUCCAL DRUG-DELIVERY; IN-VITRO RELEASE; ANGLE X-RAY; BLOCK-COPOLYMERS; MIXED MICELLES; AGGREGATION BEHAVIOR; AQUEOUS-SOLUTIONS; PHASE-BEHAVIOR;
D O I
10.1063/5.0238690
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
Pluronics, alias poloxamers, are synthetic amphiphilic copolymers owning a triblock structure with a central hydrophobic poly(propylene oxide) (PPO) segment linked to two lateral hydrophilic poly(ethylene oxide) (PEO) chains. Commercially, Pluronics exist in numerous types according to the length of PPO and PEO chains, exhibiting different behavior and phase diagrams in solution. Concentrated aqueous solutions of Pluronics form thermoreversible gel-like systems. Properties, such as versatility, biocompatibility, nontoxicity, thermosensitivity and self-assembling behavior, make them extremely attractive for numerous applications. This review paper provides an overview on Pluronics, with a focus on their properties and phase behaviors, and on the effect of the presence of salts and additives. Different strategies to endow Pluronics with improved and extra properties, such as their chemical modification and mixed micelles, are briefly illustrated. Furthermore, a synopsis of useful experimental methodologies for understanding the flow properties of Pluronic-based systems is presented, providing a practical guide to their experimental characterization. Eventually, significant advances of Pluronic-based materials are briefly reviewed to elucidate their role in diverse applications, ranging from drug delivery and tissue engineering to bioprinting, cell cultures, personal care industry, conductive hydrogels, and electrocatalytic science. The current article is a critical review of Pluronic block copolymers, not intended as just inert materials but also as systems with functional properties able to revolutionize the paradigm of many technological fields.
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页数:24
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