Functional Polyion Complex Micelles for Potential Targeted Hydrophobic Drug Delivery

Polyion complex (PIC) micelles have gained an increasing interest, mainly as promising nano-vehicles for the delivery of various hydrophilic charged (macro)molecules such as DNA or drugs to the body. The aim of the present study is to construct novel functional PIC micelles bearing cell targeting li...

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Main Authors: Radostina Kalinova, Ivaylo Dimitrov
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/27/7/2178
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author Radostina Kalinova
Ivaylo Dimitrov
author_facet Radostina Kalinova
Ivaylo Dimitrov
author_sort Radostina Kalinova
collection DOAJ
description Polyion complex (PIC) micelles have gained an increasing interest, mainly as promising nano-vehicles for the delivery of various hydrophilic charged (macro)molecules such as DNA or drugs to the body. The aim of the present study is to construct novel functional PIC micelles bearing cell targeting ligands on the surface and to evaluate the possibility of a hydrophobic drug encapsulation. Initially, a pair of functional oppositely charged peptide-based hybrid diblock copolymers were synthesized and characterized. The copolymers spontaneously co-assembled in water into nanosized PIC micelles comprising a core of a polyelectrolyte complex between poly(L-aspartic acid) and poly(L-lysine) and a biocompatible mixed shell of disaccharide-modified poly(ethylene glycol) and poly(2-hydroxyethyl methacrylate). Depending on the molar ratio between the oppositely charged groups, PIC micelles varying in surface charge were obtained and loaded with the natural hydrophobic drug curcumin. PIC micelles’ drug loading efficiency, in vitro drug release profiles and antioxidant activity were evaluated. The preliminary results indicate that PIC micelles can be successfully used as carriers of hydrophobic drugs, thus expanding their potential application in nanomedicine.
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spelling doaj.art-b8ddec6394b347038b69b5fe4ff334f72023-11-30T23:40:39ZengMDPI AGMolecules1420-30492022-03-01277217810.3390/molecules27072178Functional Polyion Complex Micelles for Potential Targeted Hydrophobic Drug DeliveryRadostina Kalinova0Ivaylo Dimitrov1Institute of Polymers, Bulgarian Academy of Sciences, Akad. G. Bonchev St., Bl. 103-A, 1113 Sofia, BulgariaInstitute of Polymers, Bulgarian Academy of Sciences, Akad. G. Bonchev St., Bl. 103-A, 1113 Sofia, BulgariaPolyion complex (PIC) micelles have gained an increasing interest, mainly as promising nano-vehicles for the delivery of various hydrophilic charged (macro)molecules such as DNA or drugs to the body. The aim of the present study is to construct novel functional PIC micelles bearing cell targeting ligands on the surface and to evaluate the possibility of a hydrophobic drug encapsulation. Initially, a pair of functional oppositely charged peptide-based hybrid diblock copolymers were synthesized and characterized. The copolymers spontaneously co-assembled in water into nanosized PIC micelles comprising a core of a polyelectrolyte complex between poly(L-aspartic acid) and poly(L-lysine) and a biocompatible mixed shell of disaccharide-modified poly(ethylene glycol) and poly(2-hydroxyethyl methacrylate). Depending on the molar ratio between the oppositely charged groups, PIC micelles varying in surface charge were obtained and loaded with the natural hydrophobic drug curcumin. PIC micelles’ drug loading efficiency, in vitro drug release profiles and antioxidant activity were evaluated. The preliminary results indicate that PIC micelles can be successfully used as carriers of hydrophobic drugs, thus expanding their potential application in nanomedicine.https://www.mdpi.com/1420-3049/27/7/2178peptide-based block copolymerssynthesispolyion complex micellesdrug deliverycurcumin
spellingShingle Radostina Kalinova
Ivaylo Dimitrov
Functional Polyion Complex Micelles for Potential Targeted Hydrophobic Drug Delivery
Molecules
peptide-based block copolymers
synthesis
polyion complex micelles
drug delivery
curcumin
title Functional Polyion Complex Micelles for Potential Targeted Hydrophobic Drug Delivery
title_full Functional Polyion Complex Micelles for Potential Targeted Hydrophobic Drug Delivery
title_fullStr Functional Polyion Complex Micelles for Potential Targeted Hydrophobic Drug Delivery
title_full_unstemmed Functional Polyion Complex Micelles for Potential Targeted Hydrophobic Drug Delivery
title_short Functional Polyion Complex Micelles for Potential Targeted Hydrophobic Drug Delivery
title_sort functional polyion complex micelles for potential targeted hydrophobic drug delivery
topic peptide-based block copolymers
synthesis
polyion complex micelles
drug delivery
curcumin
url https://www.mdpi.com/1420-3049/27/7/2178
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