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Sharma A, Singh M, Sharma V, Vashishth A, Raj M, Upadhyay SK, Singh S, Ramniwas S, Dhama K, Sharma AK, Bhatia SK. Current paradigms in employing self-assembled structures: Drug delivery implications with improved therapeutic potential. Colloids Surf B Biointerfaces 2024; 234:113745. [PMID: 38241890 DOI: 10.1016/j.colsurfb.2024.113745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 12/18/2023] [Accepted: 01/02/2024] [Indexed: 01/21/2024]
Abstract
Recent efforts have focused on developing improved drug delivery systems with enhanced therapeutic efficacy and minimal side effects. Micelles, self-assembled from amphiphilic block copolymers in aqueous solutions, have gained considerable attention for drug delivery. However, there is a need to further enhance their efficiency. These micelles offer benefits like biodegradability, biocompatibility, sustained drug release, and improved patient compliance. Yet, researchers must address stability issues and reduce toxicity. Nanoscale self-assembled structures have shown promise as efficient drug carriers, offering an alternative to conventional methods. Fine-tuning at the monomeric and molecular levels, along with structural modifications, is crucial for optimal drug release profiles. Various strategies, such as entrapping hydrophobic drugs and using polyethylene oxide diblock copolymer micelles to resist protein adsorption and cellular adhesion, protect the hydrophobic core from degradation. The polyethylene oxide corona also provides stealth properties, prolonging blood circulation for extended drug administration. Amphiphilic copolymers are attractive for drug delivery due to their adjustable properties, allowing control over micelle size and morphology. Emerging tools promise complex and multifunctional platforms. This article summarizes about the challenges as far as the use of micelles is concerned, including optimizing performance, rigorous pre-clinical and clinical research, and suggests further improvement for drug delivery efficacy.
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Affiliation(s)
- Ajay Sharma
- Department of Chemistry, Career Point University, Tikker - Kharwarian, Hamirpur, Himachal Pradesh 176041, India; Center for Nanoscience and Technology, Career Point University, Tikker - Kharwarian, Hamirpur, Himachal Pradesh, 176041, India.
| | - Manoj Singh
- Department of Bio-sciences and Technology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133207, India.
| | - Varruchi Sharma
- Department of Biotechnology & Bioinformatics, Sri Guru Gobind Singh College, Chandigarh 160019, India.
| | - Amit Vashishth
- Department of Science and Humanities, SRM Institute of Science & Technology (Deemed to be University) Delhi-NCR Campus, Ghaziabad, UP 201204, India.
| | - Mayank Raj
- Department of Bio-sciences and Technology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133207, India.
| | - Sushil K Upadhyay
- Department of Bio-sciences and Technology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133207, India.
| | - Sandeep Singh
- Department of Chemistry, Sri Guru Gobind Singh College, Sector -26, Chandigarh, India.
| | - Seema Ramniwas
- University Centre for Research and Development, University Institute of Biotechnology Chandigarh University, Gharuan, Mohali, India.
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, India.
| | - Anil K Sharma
- Department of Biotechnology, Amity University, Sector 82 A, IT City Rd, Block D, Sahibzada Ajit Singh Nagar, Punjab, 140306, India.
| | - Shashi Kant Bhatia
- Biotransformation and Biomaterials Lab, Department of Biological Engineering, College of Engineering, KonkukUniversity, Hwayang-dong Gwangjin-gu, Seoul 05029, South Korea.
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De Leo V, Milano F, Agostiano A, Catucci L. Recent Advancements in Polymer/Liposome Assembly for Drug Delivery: From Surface Modifications to Hybrid Vesicles. Polymers (Basel) 2021; 13:1027. [PMID: 33810273 PMCID: PMC8037206 DOI: 10.3390/polym13071027] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 03/18/2021] [Accepted: 03/23/2021] [Indexed: 12/13/2022] Open
Abstract
Liposomes are consolidated and attractive biomimetic nanocarriers widely used in the field of drug delivery. The structural versatility of liposomes has been exploited for the development of various carriers for the topical or systemic delivery of drugs and bioactive molecules, with the possibility of increasing their bioavailability and stability, and modulating and directing their release, while limiting the side effects at the same time. Nevertheless, first-generation vesicles suffer from some limitations including physical instability, short in vivo circulation lifetime, reduced payload, uncontrolled release properties, and low targeting abilities. Therefore, liposome preparation technology soon took advantage of the possibility of improving vesicle performance using both natural and synthetic polymers. Polymers can easily be synthesized in a controlled manner over a wide range of molecular weights and in a low dispersity range. Their properties are widely tunable and therefore allow the low chemical versatility typical of lipids to be overcome. Moreover, depending on their structure, polymers can be used to create a simple covering on the liposome surface or to intercalate in the phospholipid bilayer to give rise to real hybrid structures. This review illustrates the main strategies implemented in the field of polymer/liposome assembly for drug delivery, with a look at the most recent publications without neglecting basic concepts for a simple and complete understanding by the reader.
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Affiliation(s)
- Vincenzo De Leo
- Department of Chemistry, University of Bari, Via Orabona 4, 70126 Bari, Italy;
| | - Francesco Milano
- Istituto di Scienze delle Produzioni Alimentari (ISPA), Consiglio Nazionale delle Ricerche (CNR), S.P. Lecce-Monteroni, Ecotekne, 73100 Lecce, Italy;
| | - Angela Agostiano
- Department of Chemistry, University of Bari, Via Orabona 4, 70126 Bari, Italy;
| | - Lucia Catucci
- Department of Chemistry, University of Bari, Via Orabona 4, 70126 Bari, Italy;
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Xiao MC, Chou YH, Hung YN, Hu SH, Chiang WH. Hybrid polymeric nanoparticles with high zoledronic acid payload and proton sponge-triggered rapid drug release for anticancer applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 116:111277. [DOI: 10.1016/j.msec.2020.111277] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 06/27/2020] [Accepted: 07/05/2020] [Indexed: 12/12/2022]
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Liao SC, Ting CW, Chiang WH. Functionalized polymeric nanogels with pH-sensitive benzoic-imine cross-linkages designed as vehicles for indocyanine green delivery. J Colloid Interface Sci 2020; 561:11-22. [DOI: 10.1016/j.jcis.2019.11.109] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 11/03/2019] [Accepted: 11/27/2019] [Indexed: 12/13/2022]
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Yang X, Zhang B, Li P, Guo C, Li J, Wang X. Vesicle formation in aqueous mixture of the cetyltrimetylammonium bromide and an anionic chitosan derivative. J DISPER SCI TECHNOL 2018. [DOI: 10.1080/01932691.2017.1421080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Xiaoyi Yang
- China Research Institute of Daily Chemical Industry, Taiyuan, P. R. China
| | - Binbin Zhang
- China Research Institute of Daily Chemical Industry, Taiyuan, P. R. China
| | - Ping Li
- China Research Institute of Daily Chemical Industry, Taiyuan, P. R. China
| | - Chaohua Guo
- China Research Institute of Daily Chemical Industry, Taiyuan, P. R. China
| | - Jianbo Li
- China Research Institute of Daily Chemical Industry, Taiyuan, P. R. China
| | - Xingang Wang
- China Research Institute of Daily Chemical Industry, Taiyuan, P. R. China
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Dutta Chowdhury A, Ganganboina AB, Tsai YC, Chiu HC, Doong RA. Multifunctional GQDs-Concanavalin A@Fe 3O 4 nanocomposites for cancer cells detection and targeted drug delivery. Anal Chim Acta 2018; 1027:109-120. [PMID: 29866260 DOI: 10.1016/j.aca.2018.04.029] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 04/05/2018] [Indexed: 01/08/2023]
Abstract
Multifunctional nanocomposites containing intrinsic property for serving as the sensing elements as well as targeted nanoconjugates are highly preferred in various therapeutic applications. In this work, nanocomposites of graphene quantum dots (GQDs) and Fe3O4 with conjugation of lectin protein, concanavalin A, to form GQD-ConA@Fe3O4 nanocomposites are developed for both detection of cancer cell and release of drugs to HeLa cells. The GQD-ConA@Fe3O4 nanocomposites deposited on Pt electrode can detect cancerous HeLa cells over normal endothelial cells with a dynamic linear range of 5 × 102 to 1 × 105 cells mL-1 with a detection limit of 273 cell mL-1. The GQD-ConA@Fe3O4 also can serve as nanocarriers for loading and delivering doxorubicin (Dox). The in vitro cell images show that the Dox concentration in HeLa cells is enhanced more than double in the presence of external magnetic field due to the incorporation of Fe3O4 in the nanocarrier. The cytotoxicity assay indicates that the susceptibility of cancerous HeLa cells to Dox is 13% higher than that of normal cells, confirming the selective role of ConA in nanocarriers. Results clearly indicate the GQD-ConA@Fe3O4 nanocomposites as a promising material for cancer cell detection and targeted Dox release toward HeLa cells which can serve as the multifunctional platform for novel cancer cell diagnostic and therapeutic applications.
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Affiliation(s)
- Ankan Dutta Chowdhury
- Institute of Environmental Engineering, National Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan, ROC
| | - Akhilesh Babu Ganganboina
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 101 Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan, ROC
| | - Yuan-Chung Tsai
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 101 Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan, ROC
| | - Hsin-Cheng Chiu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 101 Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan, ROC.
| | - Ruey-An Doong
- Institute of Environmental Engineering, National Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan, ROC; Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 101 Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan, ROC.
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Zhang B, Yang X, Li P, Guo C, Ren X, Li J. Preparation of chitosan sulfate and vesicle formation with a conventional cationic surfactant. Carbohydr Polym 2018; 183:240-245. [DOI: 10.1016/j.carbpol.2017.12.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 12/06/2017] [Accepted: 12/13/2017] [Indexed: 11/25/2022]
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8
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Lee Y, Thompson DH. Stimuli-responsive liposomes for drug delivery. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2017; 9:10.1002/wnan.1450. [PMID: 28198148 PMCID: PMC5557698 DOI: 10.1002/wnan.1450] [Citation(s) in RCA: 240] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 11/23/2016] [Accepted: 11/27/2016] [Indexed: 12/25/2022]
Abstract
The ultimate goal of drug delivery is to increase the bioavailability and reduce the toxic side effects of the active pharmaceutical ingredient (API) by releasing them at a specific site of action. In the case of antitumor therapy, association of the therapeutic agent with a carrier system can minimize damage to healthy, nontarget tissues, while limit systemic release and promoting long circulation to enhance uptake at the cancerous site due to the enhanced permeation and retention effect (EPR). Stimuli-responsive systems have become a promising way to deliver and release payloads in a site-selective manner. Potential carrier systems have been derived from a wide variety of materials, including inorganic nanoparticles, lipids, and polymers that have been imbued with stimuli-sensitive properties to accomplish triggered release based on an environmental cue. The unique features in the tumor microenvironment can serve as an endogenous stimulus (pH, redox potential, or unique enzymatic activity) or the locus of an applied external stimulus (heat or light) to trigger the controlled release of API. In liposomal carrier systems triggered release is generally based on the principle of membrane destabilization from local defects within bilayer membranes to effect release of liposome-entrapped drugs. This review focuses on the literature appearing between November 2008-February 2016 that reports new developments in stimuli-sensitive liposomal drug delivery strategies using pH change, enzyme transformation, redox reactions, and photochemical mechanisms of activation. WIREs Nanomed Nanobiotechnol 2017, 9:e1450. doi: 10.1002/wnan.1450 For further resources related to this article, please visit the WIREs website.
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Affiliation(s)
- Y Lee
- Department of Chemistry, Purdue University, West Lafayette, IN, USA
| | - D H Thompson
- Department of Chemistry, Purdue University, West Lafayette, IN, USA
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9
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Metallosurfactants C n –Cu–C n : vesicle formation and its drug-controlled release properties. Colloid Polym Sci 2016. [DOI: 10.1007/s00396-016-3841-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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10
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Yu TW, Lu IL, Huang WC, Hu SH, Hung CC, Chiang WH, Chiu HC. Acidity-triggered surface charge neutralization and aggregation of functionalized nanoparticles for promoted tumor uptake. RSC Adv 2016. [DOI: 10.1039/c6ra05807h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
A polymeric nanovehicle featured with histidine-rich surface was developed for tumor-targeted delivery of doxorubicin.
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Affiliation(s)
- Ting-Wei Yu
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300
- Taiwan
| | - I.-Lin Lu
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300
- Taiwan
- Department of Surgery
| | - Wen-Chia Huang
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300
- Taiwan
| | - Shang-Hsiu Hu
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300
- Taiwan
| | - Chia-Chian Hung
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300
- Taiwan
| | - Wen-Hsuan Chiang
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300
- Taiwan
| | - Hsin-Cheng Chiu
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300
- Taiwan
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11
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Huang WC, Chiang WH, Cheng YH, Lin WC, Yu CF, Yen CY, Yeh CK, Chern CS, Chiang CS, Chiu HC. Tumortropic monocyte-mediated delivery of echogenic polymer bubbles and therapeutic vesicles for chemotherapy of tumor hypoxia. Biomaterials 2015; 71:71-83. [DOI: 10.1016/j.biomaterials.2015.08.033] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 08/14/2015] [Accepted: 08/16/2015] [Indexed: 10/23/2022]
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12
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Schulz M, Binder WH. Mixed Hybrid Lipid/Polymer Vesicles as a Novel Membrane Platform. Macromol Rapid Commun 2015; 36:2031-41. [DOI: 10.1002/marc.201500344] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 09/01/2015] [Indexed: 12/11/2022]
Affiliation(s)
- Matthias Schulz
- Martin-Luther University Halle-Wittenberg; Chair of Macromolecular Chemistry; Faculty of Natural Sciences II (Chemistry, Physics and Mathematics); Institute of Chemistry; D-06120 Halle (Saale) Germany
| | - Wolfgang H. Binder
- Martin-Luther University Halle-Wittenberg; Chair of Macromolecular Chemistry; Faculty of Natural Sciences II (Chemistry, Physics and Mathematics); Institute of Chemistry; D-06120 Halle (Saale) Germany
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Das A, Theato P. Activated Ester Containing Polymers: Opportunities and Challenges for the Design of Functional Macromolecules. Chem Rev 2015; 116:1434-95. [DOI: 10.1021/acs.chemrev.5b00291] [Citation(s) in RCA: 285] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anindita Das
- Institute
for Technical and
Macromolecular Chemistry, University of Hamburg, D-20146 Hamburg, Germany
| | - Patrick Theato
- Institute
for Technical and
Macromolecular Chemistry, University of Hamburg, D-20146 Hamburg, Germany
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14
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Chiang WH, Huang WC, Chang YJ, Shen MY, Chen HH, Chern CS, Chiu HC. Doxorubicin-Loaded Nanogel Assemblies with pH/Thermo-triggered Payload Release for Intracellular Drug Delivery. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400145] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wen-Hsuan Chiang
- Department of Biomedical Engineering and Environmental Sciences; National Tsing Hua University; Hsinchu 30013 Taiwan
| | - Wen-Chia Huang
- Department of Biomedical Engineering and Environmental Sciences; National Tsing Hua University; Hsinchu 30013 Taiwan
| | - Yu-Jen Chang
- Department of Biomedical Engineering and Environmental Sciences; National Tsing Hua University; Hsinchu 30013 Taiwan
| | - Ming-Yin Shen
- Department of Biomedical Engineering and Environmental Sciences; National Tsing Hua University; Hsinchu 30013 Taiwan
- Department of Surgery; National Taiwan University Hospital-Hsinchu Branch; Hsinchu 30013 Taiwan
| | - Hsin-Hung Chen
- Department of Chemical Engineering; National Chung Hsing University; Taichung 402 Taiwan
| | - Chorng-Shyan Chern
- Department of Chemical Engineering; National Taiwan University of Science and Technology; Taipei 106 Taiwan
| | - Hsin-Cheng Chiu
- Department of Biomedical Engineering and Environmental Sciences; National Tsing Hua University; Hsinchu 30013 Taiwan
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Dual-layered nanogel-coated hollow lipid/polypeptide conjugate assemblies for potential pH-triggered intracellular drug release. PLoS One 2014; 9:e92268. [PMID: 24651156 PMCID: PMC3961315 DOI: 10.1371/journal.pone.0092268] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Accepted: 02/19/2014] [Indexed: 01/09/2023] Open
Abstract
To achieve effective intracellular anticancer drug delivery, the polymeric vesicles supplemented with the pH-responsive outlayered gels as a delivery system of doxorubicin (DOX) were developed from self-assembly of the lipid/polypeptide adduct, distearin grafted poly(γ-glutamic acid) (poly(γ-GA)), followed by sequential deposition of chitosan and poly(γ-GA-co-γ-glutamyl oxysuccinimide)-g-monomethoxy poly(ethylene glycol) in combination with in situ covalent cross-linking on assembly surfaces. The resultant gel-caged polymeric vesicles (GCPVs) showed superior performance in regulating drug release in response to the external pH change. Under typical physiological conditions (pH 7.4 and 37 °C) at which the γ-GA/DOX ionic pairings remained mostly undisturbed, the dense outlayered gels of GCPVs significantly reduced the premature leakage of the uncomplexed payload. With the environmental pH being reduced from pH 7.4 to 4.7, the drug liberation was appreciably promoted by the massive disruption of the ionic γ-GA/DOX complexes along with the significant swelling of nanogel layers upon the increased protonation of chitosan chain segments. After being internalized by HeLa cells via endocytosis, GCPVs exhibited cytotoxic effect comparable to free DOX achieved by rapidly releasing the payload in intracellular acidic endosomes and lysosomes. This strongly implies the great promise of such unique GCPVs as an intracellular drug delivery carrier for potential anticancer treatment.
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Huang YF, Chiang WH, Huang WC, Chen HH, Shen MY, Lin SC, Chern CS, Chiu HC. pH-responsive hierarchical transformation of charged lipid assemblies within polyelectrolyte gel layers with applications for controlled drug release and MR imaging contrast. J Mater Chem B 2014; 2:4988-4992. [DOI: 10.1039/c4tb00771a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Cationic DOTAP assemblies within poly(acrylic acid) gel effectively modulate drug release and MR imaging contrast by pH-induced morphological transformation.
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Affiliation(s)
- Yi-Fong Huang
- Department of Chemical Engineering
- National Chung Hsing University
- Taichung 402, Taiwan
| | - Wen-Hsuan Chiang
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300, Taiwan
| | - Wen-Chia Huang
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300, Taiwan
| | - Hsin-Hung Chen
- Department of Chemical Engineering
- National Chung Hsing University
- Taichung 402, Taiwan
| | - Ming-Yin Shen
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300, Taiwan
- Department of Surgery
- National Taiwan University Hospital-Hsinchu Branch
| | - Sung-Chyr Lin
- Department of Chemical Engineering
- National Chung Hsing University
- Taichung 402, Taiwan
| | - Chorng-Shyan Chern
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei 106, Taiwan
| | - Hsin-Cheng Chiu
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300, Taiwan
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Chiang WH, Ho VT, Chen HH, Huang WC, Huang YF, Lin SC, Chern CS, Chiu HC. Superparamagnetic hollow hybrid nanogels as a potential guidable vehicle system of stimuli-mediated MR imaging and multiple cancer therapeutics. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:6434-6443. [PMID: 23627806 DOI: 10.1021/la4001957] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Hollow hybrid nanogels were prepared first by the coassembly of the citric acid-coated superparamagnetic iron oxide nanoparticles (SPIONs, 44 wt %) with the graft copolymer (56 wt %) comprising acrylic acid and 2-methacryloylethyl acrylate units as the backbone and poly(ethylene glycol) and poly(N-isopropylacrylamide) as the grafts in the aqueous phase of pH 3.0 in the hybrid vesicle structure, followed by in situ covalent stabilization via the photoinitiated polymerization of MEA residues within vesicles. The resultant hollow nanogels, though slightly swollen, satisfactorily retain their structural integrity while the medium pH is adjusted to 7.4. Confining SPION clusters to such a high level (44 wt %) within the pH-responsive thin gel layer remarkably enhances the transverse relaxivity (r2) and renders the MR imaging highly pH-tunable. For example, with the pH being adjusted from 4.0 to 7.4, the r2 value can be dramatically increased from 138.5 to 265.5 mM(-1) s(-1). The DOX-loaded hybrid nanogels also exhibit accelerated drug release in response to both pH reduction and temperature increase as a result of the substantial disruption of the interactions between drug molecules and copolymer components. With magnetic transport guidance toward the target and subsequent exposure to an alternating magnetic field, this DOX-loaded nanogel system possessing combined capabilities of hyperthermia and stimuli-triggered drug release showed superior in vitro cytotoxicity against HeLa cells as compared to the case with only free drug or hyperthermia alone. This work demonstrates that the hollow inorganic/organic hybrid nanogels hold great potential to serve as a multimodal theranostic vehicle functionalized with such desirable features as the guidable delivery of stimuli-mediated diagnostic imaging and hyperthermia/chemotherapies.
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Affiliation(s)
- Wen-Hsuan Chiang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
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Liu D, Yu B, Jiang X, Yin J. Responsive hybrid microcapsules by the one-step interfacial thiol-ene photopolymerization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:5307-5314. [PMID: 23547914 DOI: 10.1021/la400098c] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We here demonstrated a general, convenient, and robust method to fabricate the hybrid microcapsules through the one-step thiol-ene photopolymerization at the interface between toluene and water. In the presence of amphiphilic polyhedral oligomeric silsesquioxane (POSS) containing thiol groups (PTPS) as reactive surfactants and trimethylolpropane triacrylate (TMPTA) as a cross-linker, the wall of hybrid microcapsules can be photo-cross-linked. The obtained hybrid microcapsules (HMCs) were well-characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM), and confocal laser scanning microscopy (CLSM). The results revealed that the obtained HMCs are uniform with the tunable size in diameter (2-4 μm) and wall thickness (55-120 nm). The size of HMCs increased with the increasing content of toluene. The wall thickness of HMCs decreased with the increasing content of toluene, while the wall thickness of HMCs increased with the increasing content of cross-linker TMPTA. Furthermore, HMCs are thermoresponsive in aqueous solution, can encapsulate both hydrophobic and dydrophilic dyes, and can be used in the controlled dispersion of dyes in different mediums. It is believed that this simple, robust, and general method to fabricate the hybrid microcapsules will extend the potential application fields of microcapsules, such as in the controlled dispersion and drug delivery.
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Affiliation(s)
- Dandan Liu
- School of Chemistry and Chemical Engineering, State Key Laboratory for Metal Matrix Composite Materials, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
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19
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Chiang WH, Ho VT, Huang WC, Huang YF, Chern CS, Chiu HC. Dual stimuli-responsive polymeric hollow nanogels designed as carriers for intracellular triggered drug release. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:15056-64. [PMID: 23036055 DOI: 10.1021/la302903v] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Dual stimuli-responsive hollow nanogel spheres serving as an efficient intracellular drug delivery platform were obtained from the spontaneous coassociation of two graft copolymers into the vesicle architecture in aqueous phase. Both copolymers comprise acrylic acid (AAc) and 2-methacryloylethyl acrylate (MEA) units as the backbone and either poly(N-isopropylacrylamide) (PNIPAAm) alone or both PNIPAAm and monomethoxypoly(ethylene glycol) (mPEG) chain segments as the grafts. The assemblies were then subjected to covalent stabilization within vesicle walls with ester-containing cross-links by radical polymerization of MEA moieties, thereby leading to hollow nanogel particles. Taking the advantage of retaining a low quantity of payload within polymer layer-enclosed aqueous chambers through the entire loading process, doxorubicin (DOX) in the external bulk phase can be effectively transported into the gel membrane and bound therein via electrostatic interactions with ionized AAc residues and hydrogen-bond pairings with PNIPAAm grafts at pH 7.4. With the environmental pH being reduced (e.g., from 7.4 to 5.0) at 37 °C, the extensive disruption of AAc/DOX complexes due to the reduced ionization of AAc residues within the gel layer and the pronounced shrinkage of nanogels enable the rapid release of DOX species from drug-loaded hollow nanogels. By contrast, the drug liberation at 4 °C was severally restricted, particularly at pH 7.4 at which the DOX molecules remain strongly bound with ionized AAc residues and PNIPAAm grafts. The in vitro characterizations suggest that the DOX-loaded hollow nanogel particles after being internalized by HeLa cells via endocytosis can rapidly release the payload within acidic endosomes or lysosomes. This will then lead to significant drug accumulation in nuclei (within 1 h) and a cytotoxic effect comparable to free drug. This work demonstrates that the novel DOX-loaded hollow nanogel particles show great promise of therapeutic efficacy for potential anticancer treatment.
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Affiliation(s)
- Wen-Hsuan Chiang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
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Chiang WH, Lan YJ, Huang YC, Chen YW, Huang YF, Lin SC, Chern CS, Chiu HC. Multi-scaled polymersomes from self-assembly of octadecanol-modified dextrans. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.03.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Tao Y, Han J, Dou H. Brain-targeting gene delivery using a rabies virus glycoprotein peptide modulated hollow liposome: bio-behavioral study. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31675g] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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