1
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Bellala S, Viswanathan K, Guntakanti U, Kowthalam A, Han SS, Kummara MR, Obireddy SR, Lai WF. Composite Microgels Loaded with Doxorubicin-Conjugated Amine-Functionalized Zinc Ferrite Nanoparticles for Stimuli-Responsive Sustained Drug Release. Int J Nanomedicine 2024; 19:5059-5070. [PMID: 38836007 PMCID: PMC11149627 DOI: 10.2147/ijn.s448594] [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: 11/07/2023] [Accepted: 03/08/2024] [Indexed: 06/06/2024] Open
Abstract
Purpose The purpose of this study is to address the need for efficient drug delivery with high drug encapsulation efficiency and sustained drug release. We aim to create nanoparticle-loaded microgels for potential applications in treatment development. Methods We adopted the process of ionic gelation to generate microgels from sodium alginate and carboxymethyl cellulose. These microgels were loaded with doxorubicin-conjugated amine-functionalized zinc ferrite nanoparticles (AZnFe-NPs). The systems were characterized using various techniques. Toxicity was evaluated in MCF-7 cells. In vitro release studies were conducted at different pH levels at 37 oC, with the drug release kinetics being analyzed using various models. Results The drug encapsulation efficiency of the created carriers was as high as 70%. The nanoparticle-loaded microgels exhibited pH-responsive behavior and sustained drug release. Drug release from them was mediated via a non-Fickian type of diffusion. Conclusion Given their high drug encapsulation efficiency, sustained drug release and pH-responsiveness, our nanoparticle-loaded microgels show promise as smart carriers for future treatment applications. Further development and research can significantly benefit the field of drug delivery and treatment development.
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Affiliation(s)
- Shirisha Bellala
- Department of Chemistry, Sri Krishnadevaraya University, Anantapur, Andhra Pradesh, 515003, India
| | - Karthika Viswanathan
- Department of Nanoscience and Technology, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
| | - Ujwala Guntakanti
- Department of Chemistry, G. Pulla Reddy Engineering College, Kurnool, Andhra Pradesh, 518 007, India
| | - Anitha Kowthalam
- Department of Chemistry, Sri Krishnadevaraya University, Anantapur, Andhra Pradesh, 515003, India
| | - Sung Soo Han
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | | | - Sreekanth Reddy Obireddy
- Department of Chemistry, Sri Krishnadevaraya University, Anantapur, Andhra Pradesh, 515003, India
- Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Zhejiang, 310014, China
| | - Wing-Fu Lai
- Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Zhejiang, 310014, China
- School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, UK
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
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2
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Gong Z, Peng S, Cao J, Tan H, Zhao H, Bai J. Advances in the variations and biomedical applications of stimuli-responsive nanodrug delivery systems. NANOTECHNOLOGY 2024; 35:132001. [PMID: 38198449 DOI: 10.1088/1361-6528/ad170b] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024]
Abstract
Chemotherapy is an important cancer treatment modality, but the clinical utility of chemotherapeutics is limited by their toxic side effects, inadequate distribution and insufficient intracellular concentrations. Nanodrug delivery systems (NDDSs) have shown significant advantages in cancer diagnosis and treatment. Variable NDDSs that respond to endogenous and exogenous triggers have attracted much research interest. Here, we summarized nanomaterials commonly used for tumor therapy, such as peptides, liposomes, and carbon nanotubes, as well as the responses of NDDSs to pH, enzymes, magnetic fields, light, and multiple stimuli. Specifically, well-designed NDDSs can change in size or morphology or rupture when induced by one or more stimuli. The varying responses of NDDSs to stimulation contribute to the molecular design and development of novel NDDSs, providing new ideas for improving drug penetration and accumulation, inhibiting tumor resistance and metastasis, and enhancing immunotherapy.
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Affiliation(s)
- Zhongying Gong
- College of Economics and Management, Qingdao University of Science and Technology, Qingdao 266061, People's Republic of China
| | - Shan Peng
- School of Stomatology, Weifang Medical University, Weifang 261053, People's Republic of China
| | - Juanjuan Cao
- School of Bioscience and Technology, Weifang Medical University, Weifang 261053, People's Republic of China
| | - Haining Tan
- National Glycoengineering Research Center, Shandong University, Jinan 250012, People's Republic of China
| | - Hongxia Zhao
- College of Economics and Management, Qingdao University of Science and Technology, Qingdao 266061, People's Republic of China
| | - Jingkun Bai
- School of Bioscience and Technology, Weifang Medical University, Weifang 261053, People's Republic of China
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3
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Nguyen TTK, Pham KY, Yook S. Engineered therapeutic proteins for sustained-release drug delivery systems. Acta Biomater 2023; 171:131-154. [PMID: 37717712 DOI: 10.1016/j.actbio.2023.09.018] [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: 03/01/2023] [Revised: 09/04/2023] [Accepted: 09/12/2023] [Indexed: 09/19/2023]
Abstract
Proteins play a vital role in diverse biological processes in the human body, and protein therapeutics have been applied to treat different diseases such as cancers, genetic disorders, autoimmunity, and inflammation. Protein therapeutics have demonstrated their advantages, such as specific pharmaceutical effects, low toxicity, and strong solubility. However, several disadvantages arise in clinical applications, including short half-life, immunogenicity, and low permeation, leading to reduced drug effectiveness. The structure of protein therapeutics can be modified to increase molecular size, leading to prolonged stability and increased plasma half-life. Notably, the controlled-release delivery systems for the sustained release of protein drugs and preserving the stability of cargo proteins are envisioned as a potential approach to overcome these challenges. In this review, we summarize recent research progress related to structural modifications (PEGylation, glycosylation, poly amino acid modification, and molecular biology-based strategies) and promising long-term delivery systems, such as polymer-based systems (injectable gel/implants, microparticles, nanoparticles, micro/nanogels, functional polymers), lipid-based systems (liposomes, solid lipid nanoparticles, nanostructured lipid carriers), and inorganic nanoparticles exploited for protein therapeutics. STATEMENT OF SIGNIFICANCE: In this review, we highlight recent advances concerning modifying proteins directly to enhance their stability and functionality and discuss state-of-the-art methods for the delivery and controlled long-term release of active protein therapeutics to their target site. In terms of drug modifications, four widely used strategies, including PEGylation, poly amino acid modification, glycosylation, and genetic, are discussed. As for drug delivery systems, we emphasize recent progress relating to polymer-based systems, lipid-based systems developed, and inorganic nanoparticles for protein sustained-release delivery. This review points out the areas requiring focused research attention before the full potential of protein therapeutics for human health and disease can be realized.
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Affiliation(s)
- Thoa Thi Kim Nguyen
- College of Pharmacy, Keimyung University, 1095 Dalgubeol-daero, Dalseo-Gu, Daegu 42601, Republic of Korea
| | - Khang-Yen Pham
- College of Pharmacy, Keimyung University, 1095 Dalgubeol-daero, Dalseo-Gu, Daegu 42601, Republic of Korea.
| | - Simmyung Yook
- College of Pharmacy, Keimyung University, 1095 Dalgubeol-daero, Dalseo-Gu, Daegu 42601, Republic of Korea; School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea; Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea.
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4
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Hu X, Zhou C, Wang L, Liu Q, Ma Y, Tang Y, Wang X, Chen K, Wang X, Liu Y. Procedurally Targeted Delivery of Antitumor Drugs Using FAPα-Responsive TPGS Dimer-Based Flower-like Polymeric Micelles. ACS APPLIED BIO MATERIALS 2023; 6:4358-4371. [PMID: 37702706 DOI: 10.1021/acsabm.3c00543] [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] [Indexed: 09/14/2023]
Abstract
To overcome the intestinal epithelium barrier and achieve a better antitumor effect, the procedurally targeting flower-like nanomicelles for oral delivery of antitumor drugs were designed based on FAPα-responsive TPGS1000 dimer (TPGS-Gly-Pro-TPGS) and L-carnitine linked poly(2-ethyl-2-oxazoline)-b-poly(D, l-lactide) (Car-PEOz-b-PLA). As expected, compared with unmodified polymeric micelles (TT-PMs) composed of TPGS-Gly-Pro-TPGS, L-carnitine conjugated polymeric micelles (CTT-PMs) formed from both TPGS-Gly-Pro-TPGS and Car-PEOz-b-PLA with favorable stability in simulated gastrointestinal fluid and FAPα-dependent release capability exhibited remarkably enhanced cellular uptake and transmembrane transport through OCTN2 mediation confirmed by fluorescence immunoassay, which was intuitively evidenced by stronger fluorescence within epithelial cells, and the basal side of small intestinal epithelium of mice being given intragastric administration of DiI-labeled micelles. The transport of CTT-PMs across the intestinal epithelium in an intact form was mediated by clathrin along the intracellular transport pathway of endosome-lysosome-ER-Golgi apparatus. Furthermore, both the increased uptake by FAPα-positive U87MG cells and unchangeable uptake by FAPα-negative C6 cells for coumarin-6 (C-6)/CTT-PMs compared with C-6/TT-PMs evidenced the targeting ability of CTT-PMs to FAPα-positive tumor cells. Both OCTN2-mediation and FAPα-responsiveness were beneficial for polymeric micelles to improve the delivery and therapeutic efficiency of antitumor agents, which was further supported by the remarkable enhancement in in vivo antitumor efficacy via promoting apoptosis of tumor cells for paclitaxel (PTX)-loaded CTT-PMs (PTX/CTT-PMs) with low toxicity compared with PTX/TT-PMs. Our findings offered an alternative design strategy for procedurally targeted delivery of chemotherapeutics by an oral route.
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Affiliation(s)
- Xinping Hu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Chuhang Zhou
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Leqi Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Qi Liu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yining Ma
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yingwei Tang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xiaoxiao Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Kanghao Chen
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xinyu Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yan Liu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
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5
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Lai WF, Reddy OS, Law L, Wu H, Wong WT. A self-indicating and antibacterial gelatine-chitosan blended hydrogel enabling real-time quality control and sustained bioactive agent delivery. RSC Adv 2023; 13:11865-11873. [PMID: 37077998 PMCID: PMC10107026 DOI: 10.1039/d2ra06802h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 03/12/2023] [Indexed: 04/21/2023] Open
Abstract
Hydrogels are one type of materials that are widely exploited for bioactive agent delivery, partly owing to their high biocompatibility and low toxicity. When hydrogels are used as carriers, their performance in agent loading and sustained agent release are predominately determined by the gel structure, which can be largely affected by variations during gel preparation. Till now, effective and easy methods to enable monitoring of such variations in real time have been lacking, making quality control of the generated gel-based carrier technically challenging. To address this technical gap, in this study we take advantage of the clusteroluminogenic properties of gelatine and chitosan to generate a crosslinked blended hydrogel which not only shows intrinsic antibacterial properties and high tunability in delivery performance but also shows a self-indicating capacity to enable quality control during hydrogel preparation. Upon fitting the curves of agent release into different kinetic models, the release profiles of the agent-loaded gels have been found to follow the Higuchi model well, with the non-Fickian mechanism being the major mechanism of the release process. Along with their high efficiency in agent loading, our gels warrant further exploitation for use in bioactive agent delivery and related biomedical applications.
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Affiliation(s)
- Wing-Fu Lai
- Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College Zhejiang 310012 China
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University Hong Kong Special Administrative Region China
| | | | - Lucy Law
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University Hong Kong Special Administrative Region China
| | - Haicui Wu
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University Hong Kong Special Administrative Region China
| | - Wing-Tak Wong
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University Hong Kong Special Administrative Region China
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6
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Lai WF, Zhang D, Wong WT. Design of erythrocyte-derived carriers for bioimaging applications. Trends Biotechnol 2023; 41:228-241. [PMID: 36031485 DOI: 10.1016/j.tibtech.2022.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 07/01/2022] [Accepted: 07/25/2022] [Indexed: 01/24/2023]
Abstract
Erythrocytes are physiological entities that have been exploited in both preclinical and clinical trials for the delivery of exogenous agents. Over the years, diverse erythrocyte-derived carriers (ECs) have been developed with related patents granted for industrial and commercial purposes. However, most ECs have only been exploited for drug delivery. Serious discussions regarding their applications in imaging are scarce. This article reviews the role of ECs in enhancing imaging efficiency and subsequently delineates strategies for engineering and optimising their preclinical and clinical performance. With a snapshot of the latest developments and use of ECs in imaging, directions to streamline the clinical translation of related technologies can be attained for future research.
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Affiliation(s)
- Wing-Fu Lai
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China; Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Zhejiang 310012, China.
| | - Dahong Zhang
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Zhejiang 310012, China
| | - Wing-Tak Wong
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
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7
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Smart Nanocarriers as an Emerging Platform for Cancer Therapy: A Review. MOLECULES (BASEL, SWITZERLAND) 2021; 27:molecules27010146. [PMID: 35011376 PMCID: PMC8746670 DOI: 10.3390/molecules27010146] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/18/2021] [Accepted: 12/22/2021] [Indexed: 02/07/2023]
Abstract
Cancer is a group of disorders characterized by uncontrolled cell growth that affects around 11 million people each year globally. Nanocarrier-based systems are extensively used in cancer imaging, diagnostics as well as therapeutics; owing to their promising features and potential to augment therapeutic efficacy. The focal point of research remains to develop new-fangled smart nanocarriers that can selectively respond to cancer-specific conditions and deliver medications to target cells efficiently. Nanocarriers deliver loaded therapeutic cargos to the tumour site either in a passive or active mode, with the least drug elimination from the drug delivery systems. This review chiefly focuses on current advances allied to smart nanocarriers such as dendrimers, liposomes, mesoporous silica nanoparticles, quantum dots, micelles, superparamagnetic iron-oxide nanoparticles, gold nanoparticles and carbon nanotubes, to list a few. Exhaustive discussion on crucial topics like drug targeting, surface decorated smart-nanocarriers and stimuli-responsive cancer nanotherapeutics responding to temperature, enzyme, pH and redox stimuli have been covered.
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8
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Lai WF, Wong WT. Use of graphene-based materials as carriers of bioactive agents. Asian J Pharm Sci 2021; 16:577-588. [PMID: 34849163 PMCID: PMC8609387 DOI: 10.1016/j.ajps.2020.11.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 10/01/2020] [Accepted: 11/10/2020] [Indexed: 11/12/2022] Open
Abstract
Graphene possesses a large specific surface area, a high Young's modulus, high fracture strength, high electrical conductivity, and excellent optical performance. It has been widely studied for biomedical use since its first appearance in the literature. This article offers an overview of the latest advances in the design of graphene-based materials for delivery of bioactive agents. To enhance the translation of these carriers into practical use, the toxicity involved is needed to be examined in future research in more detail. In addition, guidelines for standardizing experimental conditions during the evaluation of the performance of graphene-based materials are required to be established so that candidates showing higher practical potential can be more effectively identified for further development. This can streamline the optimization and use of graphene-based materials in delivery applications.
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Affiliation(s)
- Wing-Fu Lai
- Ciechanover Institute of Precision and Regenerative Medicine, School of Life and Health Sciences, The Chinese University of Hong Kong (Shenzhen), Shenzhen 518172, China.,Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong, Special Administrative Region, China
| | - Wing-Tak Wong
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong, Special Administrative Region, China
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9
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Polysorbate-Based Drug Formulations for Brain-Targeted Drug Delivery and Anticancer Therapy. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11199336] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Polysorbates (PSs) are synthetic nonionic surfactants consisting of polyethoxy sorbitan fatty acid esters. PSs have been widely employed as emulsifiers and stabilizers in various drug formulations and food additives. Recently, various PS-based formulations have been developed for safe and efficient drug delivery. This review introduces the general features of PSs and PS-based drug carriers, summarizes recent progress in the development of PS-based drug formulations, and discusses the physicochemical properties, biological safety, P-glycoprotein inhibitory properties, and therapeutic applications of PS-based drug formulations. Additionally, recent advances in brain-targeted drug delivery using PS-based drug formulations have been highlighted. This review will help researchers understand the potential of PSs as effective drug formulation agents.
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10
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Obireddy SR, Lai WF. Preparation and characterization of 2-hydroxyethyl starch microparticles for co-delivery of multiple bioactive agents. Drug Deliv 2021; 28:1562-1568. [PMID: 34286634 PMCID: PMC8297403 DOI: 10.1080/10717544.2021.1955043] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
The present study reports the generation of 2-hydroxyethyl starch microparticles for co-delivery and controlled release of multiple agents. The obtained microparticles are characterized by using Fourier transform infrared spectroscopy, differential scanning calorimetry, X-ray diffraction analysis, energy-dispersive X-ray spectroscopy, and scanning electron microscopy. By using ofloxacin and ketoprofen as drug models, the release sustainability of the microparticles is examined at pH 1.2, 5.4, and 6.8 at 37 °C, with Fickian diffusion being found to be the major mechanism controlling the kinetics of drug release. Upon being loaded with the drug models, the microparticles show high efficiency in acting against Escherichia coli and Bacillus cereus. The results suggest that our reported microparticles warrant further development for applications in which co-administration of multiple bioactive agents is required.
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Affiliation(s)
| | - Wing-Fu Lai
- Shenzhen Key Laboratory of Steroid Drug Discovery and Development, School of Life and Health Sciences, The Chinese University of Hong Kong (Shenzhen), Shenzhen, China.,Ciechanover Institute of Precision and Regenerative Medicine, The Chinese University of Hong Kong (Shenzhen), Shenzhen, China.,School of Education, University of Bristol, Bristol, UK
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11
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Lai WF, Zhao S, Chiou J. Antibacterial and clusteroluminogenic hypromellose-graft-chitosan-based polyelectrolyte complex films with high functional flexibility for food packaging. Carbohydr Polym 2021; 271:118447. [PMID: 34364582 DOI: 10.1016/j.carbpol.2021.118447] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 07/09/2021] [Accepted: 07/13/2021] [Indexed: 11/17/2022]
Abstract
Food packaging can extend the shelf life of food products and enhance the safety and quality of the food. This study reports food-grade polyelectrolyte complex films generated via electrostatic interactions between two cellulose-based agents [viz., hypromellose-graft-chitosan, and carmellose sodium]. At optimal conditions, our films show good barrier properties, high transparency, and high efficiency in post-production agent loading. They also demonstrate intrinsic antibacterial effects against both Gram-negative and Gram-positive bacteria. By using frozen chicken breasts as a model, the films enable real-time monitoring of the status of the frozen food due to the property of clusterisation-triggered emission. Along with their negligible toxicity, our films warrant further development as multi-functional films for effective and self-indicating food packaging.
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Affiliation(s)
- Wing-Fu Lai
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong Special Administrative Region; School of Life and Health Sciences, The Chinese University of Hong Kong (Shenzhen), Shenzhen 518172, China.
| | - Shuyang Zhao
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong Special Administrative Region
| | - Jiachi Chiou
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong Special Administrative Region; Research Institute for Future Food, Hong Kong Polytechnic University, Hong Kong Special Administrative Region
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12
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Lai WF, Gui D, Wong M, Döring A, Rogach AL, He T, Wong WT. A self-indicating cellulose-based gel with tunable performance for bioactive agent delivery. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102428] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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13
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Lai WF, Wong WT. Property-Tuneable Microgels Fabricated by Using Flow-Focusing Microfluidic Geometry for Bioactive Agent Delivery. Pharmaceutics 2021; 13:787. [PMID: 34070328 PMCID: PMC8228633 DOI: 10.3390/pharmaceutics13060787] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/17/2021] [Accepted: 05/20/2021] [Indexed: 11/16/2022] Open
Abstract
Gelatine methacryloyl (GM) shows high biocompatibility and is extensively used in tissue engineering; however, few works have explored the use of GM in bioactive agent delivery. This study adopts a microfluidic approach involving the use of flow-focusing microfluidic geometry for microgel fabrication. This approach generates highly monodisperse microgels whose size can be tuned by altering various fabrication conditions (including the concentration of the gel-forming solution and the flow rates of different phases). By using tetracycline hydrochloride as a model agent, the fabricated microgels enable prolonged agent release, with the encapsulation efficiency being around 30-40% depending on the concentration of the gel-forming solution. Along with their negligible cytotoxicity, our microgels show the potential to serve as carriers of bioactive agents for food and pharmaceutical applications.
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Affiliation(s)
- Wing-Fu Lai
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong, China;
- Ciechanover Institute of Precision and Regenerative Medicine, The Chinese University of Hong Kong (Shenzhen), Shenzhen 518172, China
| | - Wing-Tak Wong
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong, China;
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14
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Abstract
Hydrogels are an important class of soft materials that find use in bioactive agent delivery. Because of their high water content, hydrogels generally show poor mechanical strength. Long-term wear and tear in physiological conditions may lead to damage in the hydrogel structure during the delivery of bioactive agents. This results in burst and uncontrolled agent release. One strategy to solve this problem is to incorporate self-healing properties into a hydrogel so that the hydrogel can heal fractures automatically to restore original mechanical properties. The objectives of this article are to revisit the latest advances in the design of self-healing hydrogel-based carriers and to offer insights into further research to translate these carriers from the laboratory to real applications.
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Affiliation(s)
- Wing-Fu Lai
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China.,Ciechanover Institute of Precision and Regenerative Medicine, School of Life and Health Sciences, The Chinese University of Hong Kong (Shenzhen), Shenzhen 518172, China
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15
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Shou X, Zhang H, Wu D, Zhong L, Ni D, Kong T, Zhao Y, Zhao Y. Antigen-Presenting Hybrid Colloidal Crystal Clusters for Promoting T cells Expansion. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2006955. [PMID: 33711196 DOI: 10.1002/smll.202006955] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 01/03/2021] [Indexed: 06/12/2023]
Abstract
T cell based-immunotherapy has been a powerful strategy to eradicate tumor cells in clinical trials. Effectively expanding the therapeutic T cells for clinical demand is still a challenge. Here, artificial antigen-presenting scaffolds are created for T cell ex vivo expansion. The antigen-presenting hybrid colloidal crystal clusters (HCCCs) with multiple stimuli are generated by internal encapsulation with prosurvival cytokines and surface decoration with activating antibodies to CD3ε and CD28, respectively. With the large loading capacity endowed by their abundant nanoporous structures, the antigen-presenting HCCCs can constantly release prosurvival cytokine IL-2. It is found that following the direct and multiple stimulations, the antigen-presenting HCCCs can effectively promote the expansion of T cells, which exhibits robust antitumor activity in vitro. Thus, the antigen-presenting HCCCs provide a novel expansion platform for clinical manufacturing of T cells.
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Affiliation(s)
- Xin Shou
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, 518060, China
- Department of Rheumatology and Immunology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, China
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Hui Zhang
- Department of Rheumatology and Immunology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, China
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Dan Wu
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, 325001, China
| | - Liping Zhong
- National Center for International Biotargeting Theranostics, Guangxi Key Laboratory of Biotargeting Theranostics, Collaborative Innovation Center for Targeting Tumor Theranostics, Guangxi Medical University, Guangxi, 530021, China
| | - Dong Ni
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, 518060, China
| | - Tiantian Kong
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, 518060, China
| | - Yongxiang Zhao
- National Center for International Biotargeting Theranostics, Guangxi Key Laboratory of Biotargeting Theranostics, Collaborative Innovation Center for Targeting Tumor Theranostics, Guangxi Medical University, Guangxi, 530021, China
| | - Yuanjin Zhao
- Department of Rheumatology and Immunology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, China
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
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16
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Obireddy SR, Subbarao SMC, Venkata KRKS, Lai W. Development and Characterization of Montmorillonite‐Based Hybrid Materials for pH‐Responsive Drug Delivery. ChemistrySelect 2021. [DOI: 10.1002/slct.202004711] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
| | | | | | - Wing‐Fu Lai
- School of Life and Health Sciences The Chinese University of Hong Kong (Shenzhen) Shenzhen China Department of Applied Biology and Chemical Technology Hong Kong Polytechnic University, Hong Kong Special Administrative Region China
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17
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18
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Lai WF, Tang R, Wong WT. Ionically Crosslinked Complex Gels Loaded with Oleic Acid-Containing Vesicles for Transdermal Drug Delivery. Pharmaceutics 2020; 12:E725. [PMID: 32748814 PMCID: PMC7465615 DOI: 10.3390/pharmaceutics12080725] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 07/21/2020] [Accepted: 07/27/2020] [Indexed: 12/02/2022] Open
Abstract
Skin is an attractive site for drug administration partly because of its easy accessibility and favorable properties (e.g., less invasiveness and high patient compliance) over some other common routes of administration. Despite this, the efficiency in transdermal drug delivery has been largely limited by poor skin permeation. To address this problem, this study reports the generation of oleic acid-containing vesicles, which can enhance the drug delivery efficiency while showing good stability and limited skin disruption. Upon being loaded into a complex gel, along with the incorporation of the polymer blending technique, a delivery system exhibiting tunable transdermal flux of 2,3,5,4'-tetrahydroxystilbene 2-O-β-D-glucoside is reported. Taking the good biocompatibility and tunable delivery performance into account, our system warrants further development and optimization for future applications in the treatment of skin diseases.
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Affiliation(s)
- Wing-Fu Lai
- School of Pharmaceutical Sciences, Shenzhen University, Shenzhen 518060, China;
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen 518172, China
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong, China;
| | - Ryan Tang
- School of Pharmaceutical Sciences, Shenzhen University, Shenzhen 518060, China;
| | - Wing-Tak Wong
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong, China;
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19
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Lai WF, Huang E, Lui KH. Alginate-based complex fibers with the Janus morphology for controlled release of co-delivered drugs. Asian J Pharm Sci 2020; 16:77-85. [PMID: 33613731 PMCID: PMC7878464 DOI: 10.1016/j.ajps.2020.05.003] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/12/2020] [Accepted: 05/25/2020] [Indexed: 02/08/2023] Open
Abstract
Hydrogels are soft materials consisting of a three-dimensional network of polymer chains. Over the years, hydrogels with different compositions have been developed as drug carriers for diverse biomedical applications, ranging from cancer therapy and wound care to the treatment of neurodegenerative and inflammatory diseases. Most of these carriers, however, are designed only to deliver single agents. Carriers based on hydrogels for co-delivery of multiple agents, with the release rate of each of the co-delivered agents tunable, are lacking. This study reports a one-pot method of fabricating alginate-based complex fibers with the Janus morphology, with carboxymethyl cellulose sodium functioning as a polymeric modifier of the properties of each of the fiber compartments. By using malachite green and minocycline hydrochloride as model drugs, the generated fibers demonstrate the capacity of enabling the release profile of each of the co-delivered drugs to be precisely controlled. Along with their negligible toxicity and the retention of the activity of the loaded drugs, the complex fibers reported in this study warrant further development and optimization for applications that involve co-delivery of multiple agents.
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Affiliation(s)
- Wing-Fu Lai
- School of Pharmaceutical Sciences, Shenzhen University, Shenzhen 518060, China.,School of Life and Health Sciences, The Chinese University of Hong Kong (Shenzhen), Shenzhen 518172, China.,Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong, China
| | - Eric Huang
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong, China
| | - Kwok-Ho Lui
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong, China
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20
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Lai WF, Wong WT, Rogach AL. Development of Copper Nanoclusters for In Vitro and In Vivo Theranostic Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1906872. [PMID: 31975469 DOI: 10.1002/adma.201906872] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 11/23/2019] [Indexed: 05/24/2023]
Abstract
Theranostics refers to the incorporation of therapeutic and diagnostic functions into one material system. An important class of nanomaterials exploited for theranostics is metal nanoclusters (NCs). In contrast to gold and silver NCs, copper is an essential trace element for humans. It can be more easily removed from the body. This, along with the low cost of copper that offers potential large-scale nanotechnology applications, means that copper NCs have attracted great interest in recent years. The latest advances in the design, synthesis, surface engineering, and applications of copper NCs in disease diagnosis, monitoring, and treatment are reviewed. Strategies to control and enhance the emission of copper NCs are considered. With this synopsis of the up-to-date development of copper NCs as theranostic agents, it is hoped that insights and directions for translating current advances from the laboratory to the clinic can be further advanced and accelerated.
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Affiliation(s)
- Wing-Fu Lai
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, 518172, P. R. China
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, P. R. China
| | - Wing-Tak Wong
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, P. R. China
| | - Andrey L Rogach
- Department of Materials Science and Engineering, and Centre for Functional Photonics (CFP), City University of Hong Kong, Kowloon, Hong Kong SAR, P. R. China
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, 518057, P. R. China
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21
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Lai WF, Wong E, Wong WT. Multilayered composite-coated ionically crosslinked food-grade hydrogel beads generated from algal alginate for controlled and sustained release of bioactive compounds. RSC Adv 2020; 10:44522-44532. [PMID: 35517137 PMCID: PMC9058451 DOI: 10.1039/d0ra07827a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 11/25/2020] [Indexed: 12/24/2022] Open
Abstract
Hydrogels have gained interest as sustained-release matrices partly because of their high biocompatibility and ease of preparation. Their wide application has, however, been limited by their poor mechanical strength and their lack of tunability in the performance of bioactive agent delivery. By using the lake substratum as a gel property modifier, in combination with the use of the surface coating approach and the ionic gelation technique, hydrogel beads are generated from algal alginate for controlled and sustained release of bioactive compounds. Both the acute and chronic toxicity of the beads are found to be negligible in 3T3 fibroblasts. The capacity of the beads in retaining the activity of the loaded agent is verified by the negligible change in the action of the loaded compound on foodborne bacteria (viz., Staphylococcus aureus and Escherichia coli). Along with the high flexibility provided by the adopted method in the choice of coating materials, our beads extend the limitations of conventional ionically crosslinked gel systems, and show high potential for applications in functional food development, nutraceutical delivery, and pharmaceutical formulation. Multilayered composite-coated hydrogel beads are generated from algal alginate as carriers of bioactive compounds. They show high potential for applications in functional food development, nutraceutical delivery, and pharmaceutical formulation.![]()
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Affiliation(s)
- Wing-Fu Lai
- Department of Applied Biology and Chemical Technology
- Hong Kong Polytechnic University
- China
- Shenzhen Key Laboratory of Steroid Drug Discovery and Development
- School of Life and Health Sciences
| | - Eric Wong
- Department of Applied Biology and Chemical Technology
- Hong Kong Polytechnic University
- China
| | - Wing-Tak Wong
- Department of Applied Biology and Chemical Technology
- Hong Kong Polytechnic University
- China
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22
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Zhang X, Sun L, Yu Y, Zhao Y. Flexible Ferrofluids: Design and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1903497. [PMID: 31583782 DOI: 10.1002/adma.201903497] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 07/13/2019] [Indexed: 06/10/2023]
Abstract
Ferrofluids, also known as ferromagnetic particle suspensions, are materials with an excellent magnetic response, which have attracted increasing interest in both industrial production and scientific research areas. Because of their outstanding features, such as rapid magnetic reaction, flexible flowability, as well as tunable optical and thermal properties, ferrofluids have found applications in various fields, including material science, physics, chemistry, biology, medicine, and engineering. Here, a comprehensive, in-depth insight into the diverse applications of ferrofluids from material fabrication, droplet manipulation, and biomedicine to energy and machinery is provided. Design of ferrofluid-related devices, recent developments, as well as present challenges and future prospects are also outlined.
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Affiliation(s)
- Xiaoxuan Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Lingyu Sun
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Yunru Yu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Yuanjin Zhao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
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23
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Liu Y, Zhao X, Zhao C, Zhang H, Zhao Y. Responsive Porous Microcarriers With Controllable Oxygen Delivery for Wound Healing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1901254. [PMID: 30997747 DOI: 10.1002/smll.201901254] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 04/07/2019] [Indexed: 06/09/2023]
Abstract
Microcarriers with oxygen-delivering capacity have attracted increasing interest in the field of tissue regeneration. Here, a kind of molybdenum disulfide quantum dots (MoS2 QDs) integrated responsive porous microcarriers with controllable oxygen-delivering ability for wound healing is presented. The specific gelatin methacryloyl (GelMa) porous microcarriers are derived from inverse opal microparticles which can be decorated with the oxygen-carrying protein hemoglobin. Because of their characteristic porous structure, interconnected nanochannels, and excellent biocompatibility, the resultant microcarriers could carry oxygen extensively and provide support for tissue repair physically and biologically. Besides, since the typical photothermal effect of 2D materials and their derived 2D QDs, the inverse opal particles integrated with MoS2 QDs are imparted with photo-responsive capacity, which makes them able to release oxygen photo-controllably. It is demonstrated that the designed microcarriers can promote the repair of abdominal wall defects effectively with their multifunctional features. These remarkable properties point to the potential value of the microcarriers in wound healing and tissue engineering.
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Affiliation(s)
- Yuxiao Liu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Xin Zhao
- Department of Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Cheng Zhao
- Department of Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Hui Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Yuanjin Zhao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
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24
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Wen Y, Liu Y, Zhang H, Zou M, Yan D, Chen D, Zhao Y. A responsive porous hydrogel particle-based delivery system for oncotherapy. NANOSCALE 2019; 11:2687-2693. [PMID: 30693935 DOI: 10.1039/c8nr09990a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Liver cancer is one of the malignant cancers that seriously threatens human health. Although some common treatments including chemotherapy have been applied in oncotherapy, there are often serious shortcomings such as frequent and uncontrollable drug infusion. To overcome these limitations, here, we introduced responsive porous hydrogel microparticles loaded with 5-fluorouracil and metformin for oncotherapy. Because of the interconnected porous structures, various forms of active molecules could be loaded into the particles. In addition, the relatively higher temperature of the tumor site and the temperature-responsive shape transition of pNIPAM hydrogel enabled controllable drug release. The porous pNIPAM particles not only exhibited large loading efficiency and sustained release for the 5-fluorouracil and metformin co-delivery, but also protected drugs from being resolved. Thus, it can be anticipated that the porous microparticles will have great potential in oncotherapy.
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Affiliation(s)
- Yuanyuan Wen
- Department of Pharmacy, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing 210009, China. and Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
| | - Yuxiao Liu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China.
| | - Han Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China.
| | - Minhan Zou
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China.
| | - Dan Yan
- Department of Pharmacy, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing 210009, China.
| | - Dingding Chen
- Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
| | - Yuanjin Zhao
- Department of Pharmacy, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing 210009, China. and State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China.
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25
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Abstract
Currently, with the rapid development of nanotechnology, novel drug delivery systems (DDSs) have made rapid progress, in which nanocarriers play an important role in the tumour treatment. In view of the conventional chemotherapeutic drugs with many restrictions such as nonspecific systemic toxicity, short half-life and low concentration in the tumour sites, stimuli-responsive DDSs can deliver anti-tumour drugs targeting to the specific sites of tumours. Owing to precise stimuli response, stimuli-responsive DDSs can control drug release, so as to improve the curative effects, reduce the damage of normal tissues and organs, and decrease the side effects of traditional anticancer drugs. At present, according to the physicochemical properties and structures of nanomaterials, they can be divided into three categories: (1) endogenous stimuli-responsive materials, including pH, enzyme and redox responsive materials; (2) exogenous stimuli-responsive materials, such as temperature, light, ultrasound and magnetic field responsive materials; (3) multi-stimuli responsive materials. This review mainly focuses on the researches and developments of these novel stimuli-responsive DDSs based on above-mentioned nanomaterials and their clinical applications.
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Affiliation(s)
- Li Li
- a Department of Oncology Minimally Invasive , Hospital of PLA, Clinical College of Anhui Medical University , Beijing , PR China.,b Institute of Military Cognitive and Brain Sciences , Beijing , PR China
| | - Wu-Wei Yang
- a Department of Oncology Minimally Invasive , Hospital of PLA, Clinical College of Anhui Medical University , Beijing , PR China
| | - Dong-Gang Xu
- b Institute of Military Cognitive and Brain Sciences , Beijing , PR China
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26
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Cikrikci S, Mert B, Oztop MH. Development of pH Sensitive Alginate/Gum Tragacanth Based Hydrogels for Oral Insulin Delivery. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:11784-11796. [PMID: 30346766 DOI: 10.1021/acs.jafc.8b02525] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Insulin entrapped alginate-gum tragacanth (ALG-GT) hydrogels at different ALG replacement ratios (100, 75, 50, 25) were prepared through an ionotropic gelation method, followed by chitosan (CH) polyelectrolyte complexation. A mild gelation process without the use of harsh chemicals was proposed to improve insulin efficiency. Retention of almost the full amount of entrapped insulin in a simulated gastric environment and sustained insulin release in simulated intestinal buffer indicated the pH sensitivity of the gels. Insulin release from hydrogels with different formulations showed significant differences ( p < 0.05). Time domain (TD) NMR relaxometry experiments also showed the differences for different formulations, and the presence of CH revealed that ALG-GT gel formulation could be used as an oral insulin carrier at optimum concentrations. The hydrogels formulated from biodegradable, biocompatible, and nontoxic natural polymers were seen as promising devices for potential oral insulin delivery.
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Affiliation(s)
- Sevil Cikrikci
- Food Engineering Department , Middle East Technical University , Ankara 06800 , Turkey
| | - Behic Mert
- Food Engineering Department , Middle East Technical University , Ankara 06800 , Turkey
| | - Mecit Halil Oztop
- Food Engineering Department , Middle East Technical University , Ankara 06800 , Turkey
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27
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28
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Hybrids of carbon dots with subunit B of ricin toxin for enhanced immunomodulatory activity. J Colloid Interface Sci 2018; 523:226-233. [DOI: 10.1016/j.jcis.2018.03.108] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 03/29/2018] [Accepted: 03/29/2018] [Indexed: 12/27/2022]
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30
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Lai WF, Rogach AL, Wong WT. Chemistry and engineering of cyclodextrins for molecular imaging. Chem Soc Rev 2018; 46:6379-6419. [PMID: 28930330 DOI: 10.1039/c7cs00040e] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cyclodextrins (CDs) are naturally occurring cyclic oligosaccharides bearing a basket-shaped topology with an "inner-outer" amphiphilic character. The abundance of hydroxyl groups enables CDs to be functionalized with multiple targeting ligands and imaging elements. The imaging time, and the payload of different imaging elements, can be tuned by taking advantage of the commercial availability of CDs with different sizes of the cavity. This review aims to offer an outlook of the chemistry and engineering of CDs for the development of molecular probes. Complexation thermodynamics of CDs, and the corresponding implications for probe design, are also presented with examples demonstrating the structural and physiochemical roles played by CDs in the full ambit of molecular imaging. We hope that this review not only offers a synopsis of the current development of CD-based molecular probes, but can also facilitate translation of the incremental advancements from the laboratory to real biomedical applications by illuminating opportunities and challenges for future research.
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Affiliation(s)
- Wing-Fu Lai
- School of Pharmaceutical Sciences, Health Science Centre, Shenzhen University, Shenzhen, China.
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31
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Rath A, Geethu PM, Mathesan S, Satapathy DK, Ghosh P. Solvent triggered irreversible shape morphism of biopolymer films. SOFT MATTER 2018; 14:1672-1680. [PMID: 29415088 DOI: 10.1039/c8sm00042e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We report the controlled reversible and irreversible folding behavior of a biopolymer film simply by tuning the solvent characteristics. Generally, solvent triggered folding of soft membranes or film is achieved by unfolding. Here, we show that this unfolding behavior can be suppressed/delayed or even completely eliminated by altering the intrinsic nature of the solvent. A reversible folding of biopolymer film is observed in response to water, whereas, an irreversible folding is observed in the presence of an aromatic alcohol (AA) solution of different molar concentrations. The folding and unfolding behavior originates from the coupled deformation-diffusion phenomena. Our study indicates that the presence of an AA influences the relaxation behavior of polymer chains, which in turn affects the release of stored strain energy during folding. Controlling the reversibility as well as the actuation time of the biopolymer film by tuning the solvent is explained in detail at the bulk scale by applying appropriate experimental techniques. The underlying mechanism for the observed phenomena is complemented by performing a simulation study for a single polymer chain at the molecular length scale. Due to the solvent-triggered hygromorphic response, biopolymer films exhibit huge potential as sensors, soft robots, drug delivery agents, morphing medical devices and in biomedical applications. We provide experimental evidence for the weight lifting capacity of permanently folded membranes, amounting to ∼200 times their own weight.
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Affiliation(s)
- Amrita Rath
- Nanomechanics and Nanomaterials Laboratory, Solid Mechanics Group, Department of Applied Mechanics and Soft Matter Center, Indian Institute of Technology Madras, Chennai-600 036, Tamil Nadu, India.
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32
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Lai WF, Rogach AL. Hydrogel-Based Materials for Delivery of Herbal Medicines. ACS APPLIED MATERIALS & INTERFACES 2017; 9:11309-11320. [PMID: 28244320 DOI: 10.1021/acsami.6b16120] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Herbal medicine, as an integral component of oriental medicine, has assimilated into the lives of Asian people for millennia. The therapeutic efficiency of herbal extracts and ingredients has, however, been limited by various factors, including the lack of targeting capacity and poor bioavailability. Hydrogels are hydrophilic polymer networks that can imbibe a substantial amount of fluids. They are biocompatible, and may enable sustained drug release. Hydrogels, therefore, have attracted widespread studies in pharmaceutical formulation. This article first reviews the latest progress in the development of hydrogel-based materials as carriers of herbal medicines, followed by a discussion of the relationships between hydrogel properties and carrier performance. Finally, the promising potential of using hydrogels to combine medicinal herbs with synthetic drugs in one single treatment will be highlighted as an avenue for future research.
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Affiliation(s)
- Wing-Fu Lai
- Department of Pharmacy, Health Science Center, Shenzhen University , Shenzhen 518060, China
- Department of Applied Biology & Chemical Technology, The Hong Kong Polytechnic University , Hong Kong
| | - Andrey L Rogach
- Department of Physics and Materials Science and Centre for Functional Photonics, City University of Hong Kong , Hong Kong
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33
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Yi Y, Wang H, Wang X, Liu Q, Ye M, Tan W. A Smart, Photocontrollable Drug Release Nanosystem for Multifunctional Synergistic Cancer Therapy. ACS APPLIED MATERIALS & INTERFACES 2017; 9:5847-5854. [PMID: 28124556 DOI: 10.1021/acsami.6b15414] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Multifunctional synergistic therapy holds promise in biomedical studies and clinical practice. However, strategies aimed at easily integrating the components of such multimodal therapies are needed. Therefore, we herein report a smart drug release nanosystem able to perform photodynamic therapy, photothermal therapy and chemotherapy in a photocontrollable manner. Doxorubicin (DOX), a chemotherapy drug, and 5, 10, 15, 20-tetrakis (1-methylpyridinium-4-yl) porphyrin (TMPyP4), a photosensitizer, were physically intercalated into a DNA assembly immobilized on gold nanorods. The drugs were efficiently delivered to target cells and released under light irradiation, resulting in a synergism that combined phototherapy and chemotherapy for cancer treatment. This smart, photocontrollable drug release nanosystem promises precisely controlled drug release for multifunctional synergistic cancer therapy.
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Affiliation(s)
- Yi Yi
- Molecular Science and Biomedicine Laboratory, College of Biology, State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University , Changsha 410082, China
| | - Huijing Wang
- Molecular Science and Biomedicine Laboratory, College of Biology, State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University , Changsha 410082, China
| | - Xuewei Wang
- Molecular Science and Biomedicine Laboratory, College of Biology, State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University , Changsha 410082, China
| | - Qiaoling Liu
- Molecular Science and Biomedicine Laboratory, College of Biology, State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University , Changsha 410082, China
| | - Mao Ye
- Molecular Science and Biomedicine Laboratory, College of Biology, State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University , Changsha 410082, China
| | - Weihong Tan
- Molecular Science and Biomedicine Laboratory, College of Biology, State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University , Changsha 410082, China
- Department of Chemistry, Department of Physiology and Functional Genomics, Center for Research at Bio/Nano Interface, Shands Cancer Center, University of Florida Genetics Institute, and McKnight Brain Institute, University of Florida , Gainesville, Florida 32611-7200, United States
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34
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Huang X, Eggersdorfer M, Wu J, Zhao CX, Xu Z, Chen D, Weitz DA. Collective generation of milliemulsions by step-emulsification. RSC Adv 2017. [DOI: 10.1039/c7ra00935f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Milliemulsions are produced by microcapillary films based on step-emulsification and the flow behaviors depend on the geometry and capillary number.
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Affiliation(s)
- Xing Huang
- Institute of Process Equipment
- College of Energy Engineering
- Zhejiang University
- Hangzhou
- China
| | - Max Eggersdorfer
- John A. Paulson School of Engineering and Applied Sciences
- Harvard University
- Cambridge
- USA
| | - Jinrong Wu
- John A. Paulson School of Engineering and Applied Sciences
- Harvard University
- Cambridge
- USA
| | - Chun-Xia Zhao
- Australian Institute for Bioengineering and Nanotechnology
- The University of Queensland
- St Lucia
- Australia 4072
| | - Zhongbin Xu
- Institute of Process Equipment
- College of Energy Engineering
- Zhejiang University
- Hangzhou
- China
| | - Dong Chen
- Institute of Process Equipment
- College of Energy Engineering
- Zhejiang University
- Hangzhou
- China
| | - David A. Weitz
- John A. Paulson School of Engineering and Applied Sciences
- Harvard University
- Cambridge
- USA
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35
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Zhang J, Zheng X, Hu X, Xie Z. GSH-triggered size increase of porphyrin-containing nanosystems for enhanced retention and photodynamic activity. J Mater Chem B 2017; 5:4470-4477. [DOI: 10.1039/c7tb00063d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
We demonstrate the rational design of a size changeable nanosystem triggered by intracellular GSH for enhanced retention and photodynamic activity.
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Affiliation(s)
- Jianxu Zhang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Xiaohua Zheng
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Xiuli Hu
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Zhigang Xie
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
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36
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Lai WF, Susha AS, Rogach AL, Wang G, Huang M, Hu W, Wong WT. Electrospray-mediated preparation of compositionally homogeneous core–shell hydrogel microspheres for sustained drug release. RSC Adv 2017. [DOI: 10.1039/c7ra07568e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Compositionally homogeneous core–shell hydrogel microspheres were prepared for sustained drug release.
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Affiliation(s)
- Wing-Fu Lai
- School of Pharmaceutical Sciences
- Health Science Centre
- Shenzhen University
- Shenzhen
- China
| | - Andrei S. Susha
- Department of Materials Science and Engineering & Centre for Functional Photonics (CFP)
- City University of Hong Kong
- Hong Kong
| | - Andrey L. Rogach
- Department of Materials Science and Engineering & Centre for Functional Photonics (CFP)
- City University of Hong Kong
- Hong Kong
| | - Guoan Wang
- School of Pharmaceutical Sciences
- Health Science Centre
- Shenzhen University
- Shenzhen
- China
| | - Minjian Huang
- School of Pharmaceutical Sciences
- Health Science Centre
- Shenzhen University
- Shenzhen
- China
| | - Weijie Hu
- School of Pharmaceutical Sciences
- Health Science Centre
- Shenzhen University
- Shenzhen
- China
| | - Wing-Tak Wong
- Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Hong Kong
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37
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Blackman LD, Gibson MI, O'Reilly RK. Probing the causes of thermal hysteresis using tunable Nagg micelles with linear and brush-like thermoresponsive coronas. Polym Chem 2017; 8:233-244. [PMID: 28496523 PMCID: PMC5361139 DOI: 10.1039/c6py01191h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 07/30/2016] [Indexed: 12/17/2022]
Abstract
Self-assembled thermoresponsive polymers in aqueous solution have great potential as smart, switchable materials for use in biomedical applications. In recent years, attention has turned to the reversibility of these polymers' thermal transitions, which has led to debate over what factors influence discrepancies in the transition temperature when heating the system compared to the temperature obtained when cooling the system, known as the thermal hysteresis. Herein, we synthesize micelles with tunable aggregation numbers (Nagg) whose cores contain poly(n-butyl acrylate-co-N,N-dimethylacrylamide) (p(nBA-co-DMA)) and four different thermoresponsive corona blocks, namely poly(N-isopropylacrylamide) (pNIPAM), poly(N,N-diethylacrylamide) (pDEAm), poly(diethylene glycol monomethyl ether methacrylate) (pDEGMA) and poly(oligo(ethylene glycol) monomethyl ether methacrylate) (pOEGMA). By studying their thermoresponsive behavior, we elucidate the effects of changing numerous important characteristics both in the thermoresponsive chain chemistry and architecture, and in the structure of their self-assemblies. Our findings demonstrate large deviations in the reversibility between the self-assemblies and the corresponding thermoresponsive homopolymers; specifically we find that micelles whose corona consist of polymers with a brush-like architecture (pDEGMA and pOEGMA) exhibit irreversible phase transitions at a critical chain density. These results lead to a deeper understanding of stimuli-responsive self-assemblies and demonstrate the potential of tunable Nagg micelles for uncovering structure-property relationships in responsive polymer systems.
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Affiliation(s)
- L D Blackman
- Dept. of Chemistry , University of Warwick , Gibbet Hill Road , Coventry , CV4 7AL , UK .
| | - M I Gibson
- Dept. of Chemistry , University of Warwick , Gibbet Hill Road , Coventry , CV4 7AL , UK .
- Warwick Medical School , University of Warwick , Gibbet Hill Road , Coventry , CV4 7AL , UK .
| | - R K O'Reilly
- Dept. of Chemistry , University of Warwick , Gibbet Hill Road , Coventry , CV4 7AL , UK .
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38
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Lai WF, He ZD. Design and fabrication of hydrogel-based nanoparticulate systems for in vivo drug delivery. J Control Release 2016; 243:269-282. [DOI: 10.1016/j.jconrel.2016.10.013] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 10/12/2016] [Accepted: 10/12/2016] [Indexed: 12/27/2022]
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39
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Lai WF, Susha AS, Rogach AL. Multicompartment Microgel Beads for Co-Delivery of Multiple Drugs at Individual Release Rates. ACS APPLIED MATERIALS & INTERFACES 2016; 8:871-880. [PMID: 26720613 DOI: 10.1021/acsami.5b10274] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Multidrug therapy may yield higher therapeutic effects as compared to monotherapy, yet its wide application has been hampered by the limitations of conventional drug delivery systems, in which not only incompatible drugs cannot be co-delivered but also the release rates of individual co-delivered drugs cannot be tuned separately. Regarding these limitations, we adopt the microfluidic electrospray technology to fabricate alginate-based multicompartment microgel beads. By using cadmium-telluride (CdTe) quantum dots (QDs) and a quenching agent as a model pair, the beads are shown to effectively separate incompatible drugs during co-delivery, and significantly prolong the time of observable fluorescence emission from QDs co-delivered with a quenching agent. Moreover, the drug release rates from different compartments can be tuned using the polymer blending technique to achieve a variety of drug release patterns. This study is one of the first to adopt the microfluidic electrospray technology to generate microgel beads with such versatility for co-delivery of multiple drugs. Our results provide evidence for the promising potential of our beads to be further developed as a carrier for multidrug therapy and other applications that require co-administration of multiple bioactive agents.
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Affiliation(s)
- Wing-Fu Lai
- Department of Physics and Materials Science and Centre for Functional Photonics (CFP), City University of Hong Kong , Kowloon, Hong Kong
- Department of Mechanical Engineering, The University of Hong Kong , Pokfulam, Hong Kong
| | - Andrei S Susha
- Department of Physics and Materials Science and Centre for Functional Photonics (CFP), City University of Hong Kong , Kowloon, Hong Kong
| | - Andrey L Rogach
- Department of Physics and Materials Science and Centre for Functional Photonics (CFP), City University of Hong Kong , Kowloon, Hong Kong
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40
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Zhang J, Zheng M, Xie Z. Co-assembled hybrids of proteins and carbon dots for intracellular protein delivery. J Mater Chem B 2016; 4:5659-5663. [DOI: 10.1039/c6tb01622g] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Co-assembled hybrids of carbon dots and proteins protect proteins against enzymatic hydrolysis and deliver them into HeLa cells.
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Affiliation(s)
- Jianxu Zhang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Min Zheng
- School of Chemistry and life Science
- Advanced Institute of Materials Science
- Changchun University of Technology
- Changchun
- P. R. China
| | - Zhigang Xie
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
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