The Preparation of Cyclic Binary Block Polymer Using Bimolecular Homodifunctional Coupling Reaction and Characterization of Its Performance as a Drug Carrier

There is relatively little research on cyclic amphiphilic block polymers, having both hydrophilic and hydrophobic segments placed in the ring and thus resulting in a higher degree of topological restriction, as drug vehicles. Cyclic amphiphilic binary block polymer is synthesized by the click coupli...

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Main Authors: Guiying Kang, Muxin Lu, Kang Zhou, Cuiyun Yu, Hua Wei
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Molecules
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Online Access:https://www.mdpi.com/1420-3049/30/3/599
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author Guiying Kang
Muxin Lu
Kang Zhou
Cuiyun Yu
Hua Wei
author_facet Guiying Kang
Muxin Lu
Kang Zhou
Cuiyun Yu
Hua Wei
author_sort Guiying Kang
collection DOAJ
description There is relatively little research on cyclic amphiphilic block polymers, having both hydrophilic and hydrophobic segments placed in the ring and thus resulting in a higher degree of topological restriction, as drug vehicles. Cyclic amphiphilic binary block polymer is synthesized by the click coupling reaction of bimolecular homodifunctional precursors. The results indicate that cyclization between linear polymer precursors is successful if the trace linear by-products generated are ignored, which also suggests that the small molecule bifunctional terminating agent applied in traditional bimolecular homodifunctional ring-closure process can be extended to large molecule. Moreover, the study on the self-assembly behavior of polymers shows that, compared with linear counterparts, the stability and drug loading capacity of micelles based on the resultant cyclic polymer are not significantly improved due to the influence of topological structure and linear impurities. Nevertheless, drug loaded micelles formed by the obtained cyclic polymers still exhibit superior cellular uptake ability. It can be seen that topological effects do play an irreplaceable role in the application performance of polymers. Therefore, the construction and synthesis of cyclic and its derivative polymers with moderate topological confinement and high purity may be a key direction for future exploration of polymer drug delivery carriers.
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spelling doaj-art-dd73114b8c3a4bcd86fc6a55661cd11c2025-08-20T02:12:31ZengMDPI AGMolecules1420-30492025-01-0130359910.3390/molecules30030599The Preparation of Cyclic Binary Block Polymer Using Bimolecular Homodifunctional Coupling Reaction and Characterization of Its Performance as a Drug CarrierGuiying Kang0Muxin Lu1Kang Zhou2Cuiyun Yu3Hua Wei4College of Chemical engineering and Technology, Tianshui Normal University, Tianshui 741001, ChinaCollege of Chemical engineering and Technology, Tianshui Normal University, Tianshui 741001, ChinaChina PetroChina Lanzhou Lubricating Oil R & D Institute, Lanzhou 730060, ChinaHunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Department of Pharmacy and Pharmacology, University of South China, Hengyang 421001, ChinaHunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Department of Pharmacy and Pharmacology, University of South China, Hengyang 421001, ChinaThere is relatively little research on cyclic amphiphilic block polymers, having both hydrophilic and hydrophobic segments placed in the ring and thus resulting in a higher degree of topological restriction, as drug vehicles. Cyclic amphiphilic binary block polymer is synthesized by the click coupling reaction of bimolecular homodifunctional precursors. The results indicate that cyclization between linear polymer precursors is successful if the trace linear by-products generated are ignored, which also suggests that the small molecule bifunctional terminating agent applied in traditional bimolecular homodifunctional ring-closure process can be extended to large molecule. Moreover, the study on the self-assembly behavior of polymers shows that, compared with linear counterparts, the stability and drug loading capacity of micelles based on the resultant cyclic polymer are not significantly improved due to the influence of topological structure and linear impurities. Nevertheless, drug loaded micelles formed by the obtained cyclic polymers still exhibit superior cellular uptake ability. It can be seen that topological effects do play an irreplaceable role in the application performance of polymers. Therefore, the construction and synthesis of cyclic and its derivative polymers with moderate topological confinement and high purity may be a key direction for future exploration of polymer drug delivery carriers.https://www.mdpi.com/1420-3049/30/3/599cyclic binary block polymerbimolecular homodifunctional coupling reactiondrug carrierperformance
spellingShingle Guiying Kang
Muxin Lu
Kang Zhou
Cuiyun Yu
Hua Wei
The Preparation of Cyclic Binary Block Polymer Using Bimolecular Homodifunctional Coupling Reaction and Characterization of Its Performance as a Drug Carrier
Molecules
cyclic binary block polymer
bimolecular homodifunctional coupling reaction
drug carrier
performance
title The Preparation of Cyclic Binary Block Polymer Using Bimolecular Homodifunctional Coupling Reaction and Characterization of Its Performance as a Drug Carrier
title_full The Preparation of Cyclic Binary Block Polymer Using Bimolecular Homodifunctional Coupling Reaction and Characterization of Its Performance as a Drug Carrier
title_fullStr The Preparation of Cyclic Binary Block Polymer Using Bimolecular Homodifunctional Coupling Reaction and Characterization of Its Performance as a Drug Carrier
title_full_unstemmed The Preparation of Cyclic Binary Block Polymer Using Bimolecular Homodifunctional Coupling Reaction and Characterization of Its Performance as a Drug Carrier
title_short The Preparation of Cyclic Binary Block Polymer Using Bimolecular Homodifunctional Coupling Reaction and Characterization of Its Performance as a Drug Carrier
title_sort preparation of cyclic binary block polymer using bimolecular homodifunctional coupling reaction and characterization of its performance as a drug carrier
topic cyclic binary block polymer
bimolecular homodifunctional coupling reaction
drug carrier
performance
url https://www.mdpi.com/1420-3049/30/3/599
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