Zein-Based Nanocarriers: Advances in Oral Drug Delivery

Oral administration remains the preferred drug delivery route but faces formidable gastrointestinal barriers, including enzymatic degradation, solubility limitations, and poor epithelial absorption. Zein-based nanocarriers (ZBNs), derived from maize prolamin, provide a transformative platform to add...

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Main Authors: Yuxin Liu, Dongyu An, Xiangjian Meng, Shiming Deng, Guijin Liu
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Pharmaceutics
Subjects:
Online Access:https://www.mdpi.com/1999-4923/17/7/944
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author Yuxin Liu
Dongyu An
Xiangjian Meng
Shiming Deng
Guijin Liu
author_facet Yuxin Liu
Dongyu An
Xiangjian Meng
Shiming Deng
Guijin Liu
author_sort Yuxin Liu
collection DOAJ
description Oral administration remains the preferred drug delivery route but faces formidable gastrointestinal barriers, including enzymatic degradation, solubility limitations, and poor epithelial absorption. Zein-based nanocarriers (ZBNs), derived from maize prolamin, provide a transformative platform to address these challenges. This review synthesizes recent advances in ZBNs’ design, highlighting their intrinsic advantages: structural stability across pH gradients, self-assembly versatility, and a surface functionalization capacity. Critically, we detail how engineered ZBNs overcome key barriers, such as enzymatic/chemical protection via hydrophobic encapsulation, the enhanced mucus penetration or adhesion through surface engineering, and improved epithelial transport via ligand conjugation. Applications demonstrate their efficacy in stabilizing labile therapeutics, enhancing the solubility of BCS Class II/IV drugs, enabling pH-responsive release, and significantly boosting oral bioavailability. Remaining challenges in scalability and translational predictability warrant future efforts toward multifunctional systems, bio-interfacial modeling, and continuous manufacturing. This work positions ZBNs as a potential platform for the oral delivery of BCS Class II–IV drugs’ in the biopharmaceutics classification system.
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spelling doaj-art-1467c107344f4b8bbf500eecb3fc0a0e2025-08-20T03:32:18ZengMDPI AGPharmaceutics1999-49232025-07-0117794410.3390/pharmaceutics17070944Zein-Based Nanocarriers: Advances in Oral Drug DeliveryYuxin Liu0Dongyu An1Xiangjian Meng2Shiming Deng3Guijin Liu4Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, ChinaKey Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, ChinaKey Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, ChinaKey Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, ChinaKey Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, ChinaOral administration remains the preferred drug delivery route but faces formidable gastrointestinal barriers, including enzymatic degradation, solubility limitations, and poor epithelial absorption. Zein-based nanocarriers (ZBNs), derived from maize prolamin, provide a transformative platform to address these challenges. This review synthesizes recent advances in ZBNs’ design, highlighting their intrinsic advantages: structural stability across pH gradients, self-assembly versatility, and a surface functionalization capacity. Critically, we detail how engineered ZBNs overcome key barriers, such as enzymatic/chemical protection via hydrophobic encapsulation, the enhanced mucus penetration or adhesion through surface engineering, and improved epithelial transport via ligand conjugation. Applications demonstrate their efficacy in stabilizing labile therapeutics, enhancing the solubility of BCS Class II/IV drugs, enabling pH-responsive release, and significantly boosting oral bioavailability. Remaining challenges in scalability and translational predictability warrant future efforts toward multifunctional systems, bio-interfacial modeling, and continuous manufacturing. This work positions ZBNs as a potential platform for the oral delivery of BCS Class II–IV drugs’ in the biopharmaceutics classification system.https://www.mdpi.com/1999-4923/17/7/944zeinnanocarriersoral deliverygastrointestinal barriersprotein
spellingShingle Yuxin Liu
Dongyu An
Xiangjian Meng
Shiming Deng
Guijin Liu
Zein-Based Nanocarriers: Advances in Oral Drug Delivery
Pharmaceutics
zein
nanocarriers
oral delivery
gastrointestinal barriers
protein
title Zein-Based Nanocarriers: Advances in Oral Drug Delivery
title_full Zein-Based Nanocarriers: Advances in Oral Drug Delivery
title_fullStr Zein-Based Nanocarriers: Advances in Oral Drug Delivery
title_full_unstemmed Zein-Based Nanocarriers: Advances in Oral Drug Delivery
title_short Zein-Based Nanocarriers: Advances in Oral Drug Delivery
title_sort zein based nanocarriers advances in oral drug delivery
topic zein
nanocarriers
oral delivery
gastrointestinal barriers
protein
url https://www.mdpi.com/1999-4923/17/7/944
work_keys_str_mv AT yuxinliu zeinbasednanocarriersadvancesinoraldrugdelivery
AT dongyuan zeinbasednanocarriersadvancesinoraldrugdelivery
AT xiangjianmeng zeinbasednanocarriersadvancesinoraldrugdelivery
AT shimingdeng zeinbasednanocarriersadvancesinoraldrugdelivery
AT guijinliu zeinbasednanocarriersadvancesinoraldrugdelivery