Facile synthesis of calcium carbonate/polyacrylic acid hydrogels for pH-responsive delivery of cytarabine

Cytarabine (Cyt) encapsulated calcium carbonate (CaCO3) nanospheres were facilely synthesized through a simple co-precipitation method, and the Cyt encapsulated CaCO3 nanospheres (CaCO3/Cyt) were modified by polyacrylic acid (PAA) hydrogels through in situ polymerization of acrylic acid (AA) monomer...

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Main Authors: Lefeng Liu, Zhiguo Xu, Yang Liu, Zheng-Zhi Yin, Yanshan Sheng, Chengqiang Ding, Yong Kong
Format: Article
Language:English
Published: Elsevier 2021-11-01
Series:Journal of Saudi Chemical Society
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1319610321001496
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author Lefeng Liu
Zhiguo Xu
Yang Liu
Zheng-Zhi Yin
Yanshan Sheng
Chengqiang Ding
Yong Kong
author_facet Lefeng Liu
Zhiguo Xu
Yang Liu
Zheng-Zhi Yin
Yanshan Sheng
Chengqiang Ding
Yong Kong
author_sort Lefeng Liu
collection DOAJ
description Cytarabine (Cyt) encapsulated calcium carbonate (CaCO3) nanospheres were facilely synthesized through a simple co-precipitation method, and the Cyt encapsulated CaCO3 nanospheres (CaCO3/Cyt) were modified by polyacrylic acid (PAA) hydrogels through in situ polymerization of acrylic acid (AA) monomer on the surface of the CaCO3/Cyt. Successful preparation of the Cyt loaded CaCO3/PAA hydrogels were confirmed by the characterization of SEM, TEM and FT-IR. Premature release of Cyt in acidic medium (pH = 1.2) could be effectively circumvented by the introduction of the PAA hydrogels. More importantly, pH-responsive delivery of Cyt from the as-prepared CaCO3/PAA hydrogels could be achieved due to the pH-sensitivity of the PAA. Although the highest swelling ratio of PAA was obtained at pH 7.3 (27.7), the highest cumulative release of Cyt from the carrier was achieved at pH 5.3 (86.75%), which might be attributed to the high stability of CaCO3 at pH 7.3. That is to say, the highest cumulative release of Cyt at pH 5.3 was a compromise by considering the relatively high swelling ratio of PAA and the relatively low stability of CaCO3.
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spelling doaj.art-c1d5d0de25bd4393902436e7f7787ada2022-12-21T19:54:47ZengElsevierJournal of Saudi Chemical Society1319-61032021-11-012511101344Facile synthesis of calcium carbonate/polyacrylic acid hydrogels for pH-responsive delivery of cytarabineLefeng Liu0Zhiguo Xu1Yang Liu2Zheng-Zhi Yin3Yanshan Sheng4Chengqiang Ding5Yong Kong6Xiehe Union East China Stem Cell & Gene Engineering Co., Ltd., Huzhou 313000, ChinaXiehe Union East China Stem Cell & Gene Engineering Co., Ltd., Huzhou 313000, ChinaXiehe Union East China Stem Cell & Gene Engineering Co., Ltd., Huzhou 313000, ChinaCollege of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China; Corresponding authors.Jiangsu Key Laboratory of Advanced Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, ChinaJiangsu Key Laboratory of Advanced Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, ChinaJiangsu Key Laboratory of Advanced Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; Corresponding authors.Cytarabine (Cyt) encapsulated calcium carbonate (CaCO3) nanospheres were facilely synthesized through a simple co-precipitation method, and the Cyt encapsulated CaCO3 nanospheres (CaCO3/Cyt) were modified by polyacrylic acid (PAA) hydrogels through in situ polymerization of acrylic acid (AA) monomer on the surface of the CaCO3/Cyt. Successful preparation of the Cyt loaded CaCO3/PAA hydrogels were confirmed by the characterization of SEM, TEM and FT-IR. Premature release of Cyt in acidic medium (pH = 1.2) could be effectively circumvented by the introduction of the PAA hydrogels. More importantly, pH-responsive delivery of Cyt from the as-prepared CaCO3/PAA hydrogels could be achieved due to the pH-sensitivity of the PAA. Although the highest swelling ratio of PAA was obtained at pH 7.3 (27.7), the highest cumulative release of Cyt from the carrier was achieved at pH 5.3 (86.75%), which might be attributed to the high stability of CaCO3 at pH 7.3. That is to say, the highest cumulative release of Cyt at pH 5.3 was a compromise by considering the relatively high swelling ratio of PAA and the relatively low stability of CaCO3.http://www.sciencedirect.com/science/article/pii/S1319610321001496CaCO3 nanospheresPolyacrylic acidHydrogelspH-Responsive deliveryCytarabine
spellingShingle Lefeng Liu
Zhiguo Xu
Yang Liu
Zheng-Zhi Yin
Yanshan Sheng
Chengqiang Ding
Yong Kong
Facile synthesis of calcium carbonate/polyacrylic acid hydrogels for pH-responsive delivery of cytarabine
Journal of Saudi Chemical Society
CaCO3 nanospheres
Polyacrylic acid
Hydrogels
pH-Responsive delivery
Cytarabine
title Facile synthesis of calcium carbonate/polyacrylic acid hydrogels for pH-responsive delivery of cytarabine
title_full Facile synthesis of calcium carbonate/polyacrylic acid hydrogels for pH-responsive delivery of cytarabine
title_fullStr Facile synthesis of calcium carbonate/polyacrylic acid hydrogels for pH-responsive delivery of cytarabine
title_full_unstemmed Facile synthesis of calcium carbonate/polyacrylic acid hydrogels for pH-responsive delivery of cytarabine
title_short Facile synthesis of calcium carbonate/polyacrylic acid hydrogels for pH-responsive delivery of cytarabine
title_sort facile synthesis of calcium carbonate polyacrylic acid hydrogels for ph responsive delivery of cytarabine
topic CaCO3 nanospheres
Polyacrylic acid
Hydrogels
pH-Responsive delivery
Cytarabine
url http://www.sciencedirect.com/science/article/pii/S1319610321001496
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