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Monou PK, Andriotis EG, Saropoulou E, Tzimtzimis E, Tzetzis D, Komis G, Bekiari C, Bouropoulos N, Demiri E, Vizirianakis IS, Fatouros DG. Fabrication of Hybrid Coated Microneedles with Donepezil Utilizing Digital Light Processing and Semisolid Extrusion Printing for the Management of Alzheimer's Disease. Mol Pharm 2024; 21:4450-4464. [PMID: 39163171 PMCID: PMC11372831 DOI: 10.1021/acs.molpharmaceut.4c00377] [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: 08/22/2024]
Abstract
Microneedle (MN) patches are gaining increasing attention as a cost-effective technology for delivering drugs directly into the skin. In the present study, two different 3D printing processes were utilized to produce coated MNs, namely, digital light processing (DLP) and semisolid extrusion (SSE). Donepezil (DN), a cholinesterase inhibitor administered for the treatment of Alzheimer's disease, was incorporated into the coating material. Physiochemical characterization of the coated MNs confirmed the successful incorporation of donepezil as well as the stability and suitability of the materials for transdermal delivery. Optical microscopy and SEM studies validated the uniform weight distribution and precise dimensions of the MN arrays, while mechanical testing ensured the MNs' robustness, ensuring efficient skin penetration. In vitro studies were conducted to evaluate the produced transdermal patches, indicating their potential use in clinical treatment. Permeation studies revealed a significant increase in DN permeation compared to plain coating material, affirming the effectiveness of the MNs in enhancing transdermal drug delivery. Confocal laser scanning microscopy (CLSM) elucidated the distribution of the API, within skin layers, demonstrating sustained drug release and transcellular transport pathways. Finally, cell studies were also conducted on NIH3T3 fibroblasts to evaluate the biocompatibility and safety of the printed objects for transdermal applications.
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Affiliation(s)
- Paraskevi-Kyriaki Monou
- Department of Pharmacy, Division of Pharmaceutical Technology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
- Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Thessaloniki 57001, Greece
| | - Eleftherios G Andriotis
- Department of Pharmacy, Division of Pharmaceutical Technology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Eirini Saropoulou
- Department of Pharmacy, Division of Pharmaceutical Technology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Emmanouil Tzimtzimis
- Digital Manufacturing and Materials Characterization Laboratory, School of Science and Technology, International Hellenic University, 14km Thessaloniki - N. Moudania, Thermi GR, Thessaloniki 57001, Greece
| | - Dimitrios Tzetzis
- Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Thessaloniki 57001, Greece
| | - Georgios Komis
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Chrysanthi Bekiari
- Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Nikolaos Bouropoulos
- Department of Materials Science, University of Patras, Rio, Patras 26504, Greece
| | - Efterpi Demiri
- Department of Plastic Surgery, Medical School, Papageorgiou Hospital, Aristotle University of Thessaloniki, Ag. Pavlos, Thessaloniki 56429, Greece
| | - Ioannis S Vizirianakis
- Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Thessaloniki 57001, Greece
- Department of Pharmacy, Laboratory of Pharmacology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
- Department of Life and Health Sciences, University of Nicosia, Nicosia CY-1700, Cyprus
| | - Dimitrios G Fatouros
- Department of Pharmacy, Division of Pharmaceutical Technology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
- Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Thessaloniki 57001, Greece
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Allen ME, Kamilova E, Monck C, Ceroni F, Hu Y, Yetisen AK, Elani Y. Engineered Bacteria as Living Biosensors in Dermal Tattoos. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309509. [PMID: 38884139 PMCID: PMC11321667 DOI: 10.1002/advs.202309509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 05/02/2024] [Indexed: 06/18/2024]
Abstract
Dermal tattoo biosensors are promising platforms for real-time monitoring of biomarkers, with skin used as a diagnostic interface. Traditional tattoo sensors have utilized small molecules as biosensing elements. However, the rise of synthetic biology has enabled the potential employment of engineered bacteria as living analytical tools. Exploiting engineered bacterial sensors will allow for potentially more sensitive detection across a broad biomarker range, with advanced processing and sense/response functionalities using genetic circuits. Here, the interfacing of bacterial biosensors as living analytics in tattoos is shown. Engineered bacteria are encapsulated into micron-scale hydrogel beads prepared through scalable microfluidics. These biosensors can sense both biochemical cues (model biomarkers) and biophysical cues (temperature changes, using RNA thermometers), with fluorescent readouts. By tattooing beads into skin models and confirming sensor activity post-tattooing, our study establishes a foundation for integrating bacteria as living biosensing entities in tattoos.
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Affiliation(s)
- Matthew E. Allen
- Department of ChemistryImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
- Institute of Chemical BiologyImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
- Department of Chemical EngineeringImperial College LondonSouth KensingtonLondonSW7 2AZUK
- fabriCELLImperial College London and King's College LondonLondonW12 0BZUK
| | - Elina Kamilova
- Department of Chemical EngineeringImperial College LondonSouth KensingtonLondonSW7 2AZUK
| | - Carolina Monck
- Department of Chemical EngineeringImperial College LondonSouth KensingtonLondonSW7 2AZUK
| | - Francesca Ceroni
- Department of Chemical EngineeringImperial College LondonSouth KensingtonLondonSW7 2AZUK
| | - Yubing Hu
- Department of Chemical EngineeringImperial College LondonSouth KensingtonLondonSW7 2AZUK
| | - Ali K. Yetisen
- Department of Chemical EngineeringImperial College LondonSouth KensingtonLondonSW7 2AZUK
| | - Yuval Elani
- Institute of Chemical BiologyImperial College LondonMolecular Sciences Research HubLondonW12 0BZUK
- Department of Chemical EngineeringImperial College LondonSouth KensingtonLondonSW7 2AZUK
- fabriCELLImperial College London and King's College LondonLondonW12 0BZUK
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Omidian H, Dey Chowdhury S. Swellable Microneedles in Drug Delivery and Diagnostics. Pharmaceuticals (Basel) 2024; 17:791. [PMID: 38931458 PMCID: PMC11206711 DOI: 10.3390/ph17060791] [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: 05/23/2024] [Revised: 06/07/2024] [Accepted: 06/13/2024] [Indexed: 06/28/2024] Open
Abstract
This manuscript explores the transformative potential of swellable microneedles (MNs) in drug delivery and diagnostics, addressing critical needs in medical treatment and monitoring. Innovations in hydrogel-integrated MN arrays facilitate controlled drug release, thereby expanding treatment options for chronic diseases and conditions that require precise dosage control. The review covers challenges, such as scalability, patient compliance, and manufacturing processes, as well as achievements in advanced manufacturing, biocompatibility, and versatile applications. Nonetheless, limitations in physiological responsiveness and long-term stability remain, necessitating further research in material innovation and integration with digital technologies. Future directions focus on expanding biomedical applications, material advancements, and regulatory considerations for widespread clinical adoption.
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Affiliation(s)
- Hossein Omidian
- Barry and Judy Silverman College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL 33328, USA;
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Futaki M, Inamura K, Nishimura T, Niitsu T, Tojo T, Sugibayashi K, Todo H. A Hollow Microneedle Equipped with a Micropillar for Improved Needle Insertion and Injection of Drug Solution. Pharm Res 2024; 41:819-831. [PMID: 38443630 DOI: 10.1007/s11095-024-03681-7] [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: 12/12/2023] [Accepted: 02/21/2024] [Indexed: 03/07/2024]
Abstract
PURPOSE Hollow-type microneedles (hMNs) are a promising device for the effective administration of drugs into intradermal sites. Complete insertion of the needle into the skin and administration of the drug solution without leakage must be achieved to obtain bioavailability or a constant effect. In the present study, several types of hMN with or without a rounded blunt tip micropillar, which suppresses skin deformation, around a hollow needle, and the effect on successful needle insertion and administration of a drug solution was investigated. Six different types of hMNs with needle lengths of 1000, 1300, and 1500 µm with or without a micropillar were used. METHODS Needle insertion and the disposition of a drug in rat skin were investigated. In addition, the displacement-force profile during application of hMNs was also investigated using a texture analyzer with an artificial membrane to examine needle factors affecting successful insertion and administration of a drug solution by comparing with in vivo results. RESULTS According to the results with the drug distribution of iodine, hMN1300 with a micropillar was able to successfully inject drug solution into an intradermal site with a high success rate. In addition, the results of displacement-force profiles with an artificial membrane showed that a micropillar can be effective for depth control of the injected solution as well as the prevention of contact between the hMN pedestal and the deformed membrane. CONCLUSION In the present study, hMN1300S showed effective solution delivery into an intradermal site. In particular, a micropillar can be effective for depth control of the injected solution as well as preventing contact between the hMN pedestal and the deformed membrane. The obtained results will help in the design and development of hMNs that ensure successful injection of an administered drug.
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Affiliation(s)
- Mika Futaki
- Graduate School of Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama, 350-0295, Japan
| | - Kazuya Inamura
- Graduate School of Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama, 350-0295, Japan
| | - Tomoya Nishimura
- Processing Development Research Lab., Kao Corp., 2606 Akabane, Ichikai-cho, Haga-gun, Tochigi, 321-3426, Japan
| | - Takatoshi Niitsu
- Processing Development Research Lab., Kao Corp., 2606 Akabane, Ichikai-cho, Haga-gun, Tochigi, 321-3426, Japan
| | - Takehiko Tojo
- Processing Development Research Lab., Kao Corp., 2606 Akabane, Ichikai-cho, Haga-gun, Tochigi, 321-3426, Japan
| | - Kenji Sugibayashi
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama, 350-0295, Japan
- Faculty of Pharmaceutical Sciences, Josai International University, 1 Gumyo, Togane, Chiba-ken, 283-8555, Japan
| | - Hiroaki Todo
- Graduate School of Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama, 350-0295, Japan.
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Yang L, Gao Y, Liu Q, Li W, Li Z, Zhang D, Xie R, Zheng Y, Chen H, Zeng X. A Bacterial Responsive Microneedle Dressing with Hydrogel Backing Layer for Chronic Wound Treatment. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307104. [PMID: 37939306 DOI: 10.1002/smll.202307104] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 10/10/2023] [Indexed: 11/10/2023]
Abstract
The treatment of chronic wounds still presents great challenges due to being infected by biofilms and the damaged healing process. The current treatments do not address the needs of chronic wounds. In this study, a highly effective dressing (Dox-DFO@MN Hy) for the treatment of chronic wounds is described. This dressing combines the advantages of microneedles (MNs) and hydrogels in the treatment of chronic wounds. MNs is employed to debride the biofilms and break down the wound barrier, providing rapid access to therapeutic drugs from hydrogel backing layer. Importantly, to kill the pathogenic bacteria in the biofilms specifically, Doxycycline hydrochloride (Dox) is wrapped into the polycaprolactone (PCL) microspheres that have lipase-responsive properties and loaded into the tips of MNs. At the same time, hydrogel backing layer is used to seal the wound and accelerate wound healing. Benefiting from the combination of two advantages of MNs and hydrogel, the dressing significantly reduces the bacteria in the biofilms and effectively promotes angiogenesis and cell migration in vitro. Overall, Dox-DFO@MN Hy can effectively treat chronic wounds infected with biofilms, providing a new idea for the treatment of chronic wounds.
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Affiliation(s)
- Li Yang
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, 518107, China
| | - Yiwen Gao
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, 518107, China
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, 100871, China
| | - Qingyun Liu
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, 518107, China
| | - Wenjing Li
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, 518107, China
| | - Zimu Li
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, 518107, China
| | - Dan Zhang
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, 518107, China
| | - Rixin Xie
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, 518107, China
| | - Yi Zheng
- Central Laboratory, University of Chinese Academy of Sciences-Shenzhen Hospital, Shenzhen, 518106, China
| | - Hongzhong Chen
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, 518107, China
| | - Xiaowei Zeng
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, 518107, China
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Bisgaard SI, Nguyen LQ, Bøgh KL, Keller SS. Dermal tissue penetration of in-plane silicon microneedles evaluated in skin-simulating hydrogel, rat skin and porcine skin. BIOMATERIALS ADVANCES 2023; 155:213659. [PMID: 37939443 DOI: 10.1016/j.bioadv.2023.213659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 09/18/2023] [Accepted: 10/07/2023] [Indexed: 11/10/2023]
Abstract
Recently, microneedle-based sensors have been introduced as novel strategy for in situ monitoring of biomarkers in the skin. Here, in-plane silicon microneedles with different dimensions and shapes are fabricated and their ability to penetrate skin is evaluated. Arrays with flat, triangular, hypodermic, lancet and pencil-shaped microneedles, with lengths of 500-1000 μm, widths of 200-400 μm and thickness of 180-500 μm are considered. Fracture force is higher than 20 N for all microneedle arrays (MNA) confirming a high mechanical stability of the microneedles. Penetration force in skin-simulating hydrogels, excised rat abdominal skin and porcine ear skin is at least five times lower than the fracture force for all MNA designs. The lowest force for skin penetration is required for triangular microneedles with a low width and thickness. Skin tissue staining and histological analysis of rat abdominal skin and porcine ear skin confirm successful penetration of the epidermis for all MNA designs. However, the penetration depth is between 100 and 300 μm, which is considerably lower than the microneedle length. Tissue damage estimated by visual analysis of the penetration hole is smallest for triangular microneedles. Penetration ability and tissue damage are compared to the skin prick test (SPT) needle applied in allergy testing.
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Affiliation(s)
- Stephanie Ingemann Bisgaard
- National Centre for Nano Fabrication and Characterization, DTU Nanolab, Technical University of Denmark, Ørsteds Plads, Building 347, 2800 Kgs. Lyngby, Denmark; National Food Institute, DTU Food, Technical University of Denmark, Kemitorvet, Building 202, 2800 Kgs. Lyngby, Denmark
| | - Long Quang Nguyen
- National Centre for Nano Fabrication and Characterization, DTU Nanolab, Technical University of Denmark, Ørsteds Plads, Building 347, 2800 Kgs. Lyngby, Denmark
| | - Katrine Lindholm Bøgh
- National Food Institute, DTU Food, Technical University of Denmark, Kemitorvet, Building 202, 2800 Kgs. Lyngby, Denmark
| | - Stephan Sylvest Keller
- National Centre for Nano Fabrication and Characterization, DTU Nanolab, Technical University of Denmark, Ørsteds Plads, Building 347, 2800 Kgs. Lyngby, Denmark.
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Zhou X, Huang S, Zhang D, Liu W, Gao W, Xue Y, Shang L. Gold Nanocluster-Based Fluorescent Microneedle Platform toward Visual Detection of ATP. Anal Chem 2023; 95:12104-12112. [PMID: 37525420 DOI: 10.1021/acs.analchem.3c02242] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Adenosine triphosphate (ATP) participates in the regulation of most biological processes, and the ATP level is closely associated with many diseases. However, it still remains challenging to achieve on-site monitoring of ATP in an equipment-free and efficient way. Microneedles, a minimally invasive technology that can extract biomarkers from liquid biopsies, have recently emerged as useful tools for early diagnosis of a broad range of diseases. In this work, we developed hydrogel microneedles that are loaded with ATP-specific dual-emitting gold nanoclusters (RhE-AuNCs) for fast sampling and on-needle detection of ATP. These RhE-AuNCs were photo-crosslinked to the hydrogel matrix to form a fluorescent microneedle patch. Based on the ATP-induced Förster resonance energy transfer in RhE-AuNCs, a highly selective, sensitive, and reliable ATP sensor was developed. Moreover, simultaneous capture and visual detection of ATP was achieved by the AuNC-loaded microneedle sensing platform, which exhibits promising sensing performance. This work provides a new approach to design a point-of-care ATP sensing platform, which also holds great potential for the further development of microneedle-based analytical devices.
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Affiliation(s)
- Xiaomeng Zhou
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Saijin Huang
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Dan Zhang
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
- College of Chemistry and Environment Science, Shaanxi University of Technology, Hanzhong 723001, China
| | - Wenfeng Liu
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Wenxing Gao
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Yumeng Xue
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Li Shang
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
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Song K, Hao Y, Tan X, Huang H, Wang L, Zheng W. Microneedle-mediated delivery of Ziconotide-loaded liposomes fused with exosomes for analgesia. J Control Release 2023; 356:448-462. [PMID: 36898532 DOI: 10.1016/j.jconrel.2023.03.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 03/02/2023] [Accepted: 03/04/2023] [Indexed: 03/12/2023]
Abstract
Ziconotide (ZIC) is an N-type calcium channel antagonist for treating severe chronic pain that is intolerable, or responds poorly to the administration of other drugs, such as intrathecal morphine and systemic analgesics. As it can only work in the brain and cerebrospinal fluid, intrathecal injection is the only administration route for ZIC. In this study, borneol (BOR)-modified liposomes (LIPs) were fused with exosomes from mesenchymal stem cells (MSCs) and loaded with ZIC to prepare microneedles (MNs) to improve the efficiency of ZIC across the blood-brain barrier. To evaluate local analgesic effects of MNs, the sensitivity of behavioral pain to thermal and mechanical stimuli was tested in animal models of peripheral nerve injury, diabetes-induced neuropathy pain, chemotherapy-induced pain, and ultraviolet-B (UV-B) radiation-induced neurogenic inflammatory pain. BOR-modified LIPs loaded with ZIC were spherical or nearly spherical, with a particle size of about 95 nm and a Zeta potential of -7.8 mV. After fusion with MSC exosomes, the particle sizes of LIPs increased to 175 nm, and their Zeta potential increased to -3.8 mV. The nano-MNs constructed based on BOR-modified LIPs had good mechanical properties and could effectively penetrate the skin to release drugs. The results of analgesic experiments showed that ZIC had a significant analgesic effect in different pain models. In conclusion, the BOR-modified LIP membrane-fused exosome MNs constructed in this study for delivering ZIC provide a safe and effective administration for chronic pain treatment, as well as great potential for clinical application of ZIC.
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Affiliation(s)
- Kaichao Song
- Beijing Key Laboratory of Drug Delivery and Novel Formulation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China; Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Yumei Hao
- Beijing Key Laboratory of Drug Delivery and Novel Formulation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Xiaochuan Tan
- Beijing Key Laboratory of Drug Delivery and Novel Formulation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Hongdong Huang
- Department of Nephrology, Beijing Friendship Hospital, Faculty of Kidney Diseases, Capital Medical University, Beijing 100050, China.
| | - Lulu Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China.
| | - Wensheng Zheng
- Beijing Key Laboratory of Drug Delivery and Novel Formulation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China.
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Van Hileghem L, Kushwaha S, Piovesan A, Verboven P, Nicolaï B, Reynaerts D, Dal Dosso F, Lammertyn J. Innovative Fabrication of Hollow Microneedle Arrays Enabling Blood Sampling with a Self-Powered Microfluidic Patch. MICROMACHINES 2023; 14:615. [PMID: 36985022 PMCID: PMC10052199 DOI: 10.3390/mi14030615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 02/28/2023] [Accepted: 03/05/2023] [Indexed: 06/18/2023]
Abstract
Microneedles are gaining a lot of attention in the context of sampling cutaneous biofluids such as capillary blood. Their minimal invasiveness and user-friendliness make them a prominent substitute for venous puncture or finger-pricking. Although the latter is suitable for self-sampling, the impracticality of manual handling and the difficulty of obtaining enough qualitative sample is driving the search for better solutions. In this context, hollow microneedle arrays (HMNAs) are particularly interesting for completely integrating sample-to-answer solutions as they create a duct between the skin and the sampling device. However, the fabrication of sharp-tipped HMNAs with a high aspect ratio (AR) is challenging, especially since a length of ≥1500 μm is desired to reach the blood capillaries. In this paper, we first described a novel two-step fabrication protocol for HMNAs in stainless steel by percussion laser drilling and subsequent micro-milling. The HMNAs were then integrated into a self-powered microfluidic sampling patch, containing a capillary pump which was optimized to generate negative pressure differences up to 40.9 ± 1.8 kPa. The sampling patch was validated in vitro, showing the feasibility of sampling 40 μL of liquid. It is anticipated that our proof-of-concept is a starting point for more sophisticated all-in-one biofluid sampling and point-of-care testing systems.
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Affiliation(s)
- Lorenz Van Hileghem
- Biosensors Group, Department of Biosystems, KU Leuven, Willem de Croylaan 42, 3001 Leuven, Belgium
- Institute of Micro- and Nanoscale Integration, KU Leuven, 3001 Leuven, Belgium
| | - Shashwat Kushwaha
- Institute of Micro- and Nanoscale Integration, KU Leuven, 3001 Leuven, Belgium
- Manufacturing Processes and Systems, Department of Mechanical Engineering, KU Leuven, Celestijnenlaan 300, 3001 Leuven, Belgium
- Member of Flanders Make, 3000 Leuven, Belgium
| | - Agnese Piovesan
- Postharvest Group, Department of Biosystems, KU Leuven, Willem de Croylaan 42, 3001 Leuven, Belgium
| | - Pieter Verboven
- Postharvest Group, Department of Biosystems, KU Leuven, Willem de Croylaan 42, 3001 Leuven, Belgium
| | - Bart Nicolaï
- Postharvest Group, Department of Biosystems, KU Leuven, Willem de Croylaan 42, 3001 Leuven, Belgium
| | - Dominiek Reynaerts
- Institute of Micro- and Nanoscale Integration, KU Leuven, 3001 Leuven, Belgium
- Manufacturing Processes and Systems, Department of Mechanical Engineering, KU Leuven, Celestijnenlaan 300, 3001 Leuven, Belgium
- Member of Flanders Make, 3000 Leuven, Belgium
| | - Francesco Dal Dosso
- Biosensors Group, Department of Biosystems, KU Leuven, Willem de Croylaan 42, 3001 Leuven, Belgium
- Institute of Micro- and Nanoscale Integration, KU Leuven, 3001 Leuven, Belgium
| | - Jeroen Lammertyn
- Biosensors Group, Department of Biosystems, KU Leuven, Willem de Croylaan 42, 3001 Leuven, Belgium
- Institute of Micro- and Nanoscale Integration, KU Leuven, 3001 Leuven, Belgium
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10
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Rapidly Dissolving Microneedles for the Delivery of Steroid-Loaded Nanoparticles Intended for the Treatment of Inflammatory Skin Diseases. Pharmaceutics 2023; 15:pharmaceutics15020526. [PMID: 36839849 PMCID: PMC9967926 DOI: 10.3390/pharmaceutics15020526] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/21/2023] [Accepted: 02/02/2023] [Indexed: 02/08/2023] Open
Abstract
Drug delivery through the skin has immense advantages compared to other routes of administration and offers an optimal way to treat inflammatory skin diseases, where corticosteroids are the cornerstone of topical therapy. Still, their therapeutic efficiency is limited due to inadequate skin permeability, potential side effects, and reduced patient compliance. To overcome these drawbacks, we propose a drug delivery system consisting of dexamethasone (DEX)-loaded poly(lactic-co-glycolic acid) (PLGA) nanoparticles (NPs) incorporated in sodium alginate (SA) microneedles (MNs) as a minimally invasive dosage form for controlled drug release. Drug-loaded PLGA NPs were prepared by a nanoprecipitation method with a high encapsulation yield. They exhibited a controlled release pattern over 120 h. A modified vacuum-deposition micromolding method was used to load the obtained DEX-NPs into the tips of dissolving MNs. The NP-MNs showed improved insertion capabilities into the skin-simulant parafilm model and enhanced mechanical strength when tested against different static forces compared to their counterparts (SA-MNs). The results of an MN dissolution study following application to ex vivo chicken skin and agarose gel indicate that the NP-loaded segments of MNs dissolve within 15 s, in which the NPs are released into the skin. Taken together, the incorporation of DEX-NPs into SA-MNs could be a promising approach to bypass the limitations of conventional topical treatment of skin diseases, allowing for self-administration, increased patient compliance, and controlled drug release.
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11
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Natural polysaccharide-based biodegradable polymeric platforms for transdermal drug delivery system: a critical analysis. Drug Deliv Transl Res 2022; 12:2649-2666. [PMID: 35499715 DOI: 10.1007/s13346-022-01152-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/21/2022] [Indexed: 12/15/2022]
Abstract
Natural biodegradable polymers generally include polysaccharides (starch, alginate, chitin/chitosan, hyaluronic acid derivatives, etc.) and proteins (collagen, gelatin, fibrin, etc.). In transdermal drug delivery systems (TDDS), these polymers play a vital role in controlling the device's drug release. It is possible that natural polymers can be used for TDDS to attain predetermined drug delivery rates due to their physicochemical properties. These polymers can be employed to market products and scale production because they are readily available and inexpensive. As a result of these polymers, new pharmaceutical delivery systems can be developed that is both regulated and targeted. The focus of this article is the application of a biodegradable polymeric platform based on natural polymers for TDDS. Due to their biocompatibility and biodegradability, natural biodegradable polymers are frequently used in biomedical applications. Additionally, these natural biodegradable polymers are being studied for their characteristics and behaviors.
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12
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Kight E, Alfaro R, Gadila SKG, Chang S, Evans D, Embers M, Haselton F. Direct Capture and Early Detection of Lyme Disease Spirochete in Skin with a Microneedle Patch. BIOSENSORS 2022; 12:819. [PMID: 36290956 PMCID: PMC9599122 DOI: 10.3390/bios12100819] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/24/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Borrelia burgdorferi sensu lato family of spirochetes causes Lyme disease (LD) in animals and humans. As geographic territory of ticks expands across the globe, surveillance measures are needed to measure transmission rates and provide early risk testing of suspected bites. The current standard testing of LD uses an indirect two-step serological assay that detects host immune reactivity. Early detection remains a challenge because the host antibody response develops several weeks after infection. A microneedle (MN) device was developed to sample interstitial fluid (ISF) and capture spirochetes directly from skin. After sampling, the MN patch is easily dissolved in water or TE buffer, and the presence of spirochete DNA is detected by PCR. Performance was tested by spiking porcine ear skin with inactivated Borrelia burgdorferi, which had an approximate recovery of 80% of spirochetes. With further development, this simple direct PCR method could be a transformative approach for early detection of the causative agent of Lyme disease and enable rapid treatment to patients when infection is early, and numbers of systemic spirochetes are low.
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Affiliation(s)
- Emily Kight
- Biomedical Engineering, Vanderbilt University, Nashville, TN 37211, USA
| | - Rosana Alfaro
- Biomedical Engineering, Vanderbilt University, Nashville, TN 37211, USA
| | - Shiva Kumar Goud Gadila
- Division of Immunology, Tulane National Primate Research Center, Tulane University Health Sciences, Covington, LA 70433, USA
| | - Shuang Chang
- Biomedical Engineering, Vanderbilt University, Nashville, TN 37211, USA
| | - David Evans
- Biomedical Engineering, Vanderbilt University, Nashville, TN 37211, USA
| | - Monica Embers
- Division of Immunology, Tulane National Primate Research Center, Tulane University Health Sciences, Covington, LA 70433, USA
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Appadoo V, Carter MCD, Jennings J, Guo X, Liu B, Hacker TA, Lynn DM. Stimuli-Responsive Polymer Coatings for the Rapid and Tunable Contact Transfer of Plasmid DNA to Soft Surfaces. ACS Biomater Sci Eng 2022; 8:4390-4401. [PMID: 36130280 DOI: 10.1021/acsbiomaterials.2c00706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report the design and characterization of thin polymer-based coatings that promote the contact transfer of DNA to soft surfaces under mild and physiologically relevant conditions. Past studies reveal polymer multilayers fabricated using linear poly(ethylene imine) (LPEI), poly(acrylic acid) (PAA), and plasmid DNA promote contact transfer of DNA to vascular tissue. Here, we demonstrate that changes in the structure of the polyamine building blocks of these materials can have substantial impacts on rates and extents of contact transfer. We used two hydrogel-based substrate models that permit identification and manipulation of parameters that influence contact transfer. We used a planar gel model to characterize films having the structure (cationic polymer/PAA/cationic polymer/plasmid DNA)x fabricated using either LPEI or one of three poly(β-amino ester)s as polyamine building blocks. The structure of the polyamine influenced subsequent contact transfer of DNA significantly; in general, films fabricated using more hydrophilic polymers promoted transfer more effectively. This planar model also permitted characterization of the stabilities of films transferred onto secondary surfaces, revealing rates of DNA release to be slower than rates of release prior to transfer. We also used a three-dimensional hole-based hydrogel model to evaluate contact transfer of DNA from the surfaces of inflatable catheter balloons used in vascular interventions and selected a rapid-transfer coating for proof-of-concept studies to characterize balloon-mediated contact transfer of DNA to peripheral arterial tissue in swine. Our results reveal robust and largely circumferential transfer of DNA to the luminal walls of peripheral arteries using inflation times as short as 15 to 30 s. The materials and approaches reported here provide new and useful tools for promoting rapid, substrate-mediated contact transfer of plasmid DNA to soft surfaces in vitro and in vivo that could prove useful in a range of fundamental and applied contexts.
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Affiliation(s)
- Visham Appadoo
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave., Madison, Wisconsin 53706, United States
| | - Matthew C D Carter
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave., Madison, Wisconsin 53706, United States
| | - James Jennings
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave., Madison, Wisconsin 53706, United States
| | - Xuanrong Guo
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - Bo Liu
- Division of Vascular Surgery, Department of Surgery, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, Wisconsin 53705, United States
| | - Timothy A Hacker
- Cardiovascular Research Center, University of Wisconsin-Madison, 600 Highland Ave., Madison, Wisconsin 53792, United States
| | - David M Lynn
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave., Madison, Wisconsin 53706, United States.,Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
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14
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Hu T, Zhang Z, Xu C. Transdermal delivery of dextran using conductive microneedles assisted by iontophoresis. J Mater Chem B 2022; 10:8075-8081. [PMID: 36124549 DOI: 10.1039/d2tb01049f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The combination of microneedles (MNs) and iontophoresis (ITP) can enhance the drug penetration in the skin. We previously demonstrated the enhanced delivery of small molecule lidocaine in dentistry by the conductive MNs assisted by ITP. However, the delivery of macromolecules is yet to be explored for this strategy. This study fabricates conductive MNs with polyaniline and hyaluronic acid, which is combined with ITP to deliver dextran macromolecules. This combination improves the penetration of dextran molecules (3-5 kDa, 150 kDa, and 500 kDa) to a depth of around 1536 μm in the agarose gel model. Compared to non-conductive MNs assisted by ITP or conductive MNs alone, conductive MNs assisted by ITP also improves dextran's penetration through the skin, fat, muscle, and cartilage.
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Affiliation(s)
- Tianli Hu
- Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China.
| | - Zhibiao Zhang
- Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China.
| | - Chenjie Xu
- Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China.
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15
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Yu Y, Appadoo V, Ren J, Hacker TA, Liu B, Lynn DM. pH-Responsive Polyelectrolyte Coatings that Enable Catheter-Mediated Transfer of DNA to the Arterial Wall in Short and Clinically Relevant Inflation Times. ACS Biomater Sci Eng 2022; 8:4377-4389. [PMID: 36121432 DOI: 10.1021/acsbiomaterials.2c00707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the design and characterization of pH-responsive polymer coatings that enable catheter balloon-mediated transfer of DNA to arterial tissue in short, clinically relevant inflation times. Our approach exploits the pH-dependent ionization of poly(acrylic acid) (PAA) to promote disassembly and release of plasmid DNA from polyelectrolyte multilayers. We characterized the contact transfer of multilayers composed of PAA, plasmid DNA, and linear poly(ethyleneimine) (LPEI) identified as promising in prior studies on the delivery of DNA to arterial tissue. In contrast to thinner films evaluated previously, we found thicker coatings composed of 32 repeating (LPEI/PAA/LPEI/DNA)x tetralayers to swell substantially in physiologically relevant media (in PBS; pH = 7.4). In some cases, these coatings also disintegrated or delaminated rapidly from their underlying substrates, suggesting the potential for enhanced balloon-mediated transfer. We developed a technically straightforward agarose gel-based hole-insertion model to characterize factors (inflation time, lumen size, etc.) that influence contact transfer of DNA when film-coated balloons are inflated into contact with soft surfaces. Those studies and the results of in vivo experiments using small animal (rat) and large animal (pig) models of peripheral arterial injury revealed catheters coated with these materials to promote robust contact transfer of DNA to soft hydrogel surfaces and the luminal surfaces of arterial tissue using inflation times as short as 30 s. These short inflation times are relevant in the context of clinical vascular interventions in peripheral arteries. Additional studies demonstrated that contact transfer of DNA using these short times can promote subsequent dissemination and transport of DNA to the medial tissue layer, suggesting the potential for use in therapeutically relevant applications of balloon-mediated gene transfer.
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Affiliation(s)
- Yan Yu
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - Visham Appadoo
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave., Madison, Wisconsin 53706, United States
| | - Jun Ren
- Division of Vascular Surgery, Department of Surgery, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, Wisconsin 53705, United States
| | - Timothy A Hacker
- Cardiovascular Research Center, University of Wisconsin-Madison, 600 Highland Ave., Madison, Wisconsin 53792, United States
| | - Bo Liu
- Division of Vascular Surgery, Department of Surgery, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, Wisconsin 53705, United States
| | - David M Lynn
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States.,Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave., Madison, Wisconsin 53706, United States
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16
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Abdelghany S, Alshaer W, Al Thaher Y, Al Fawares M, Al-Bakri AG, Zuriekat S, Mansour RSH. Ciprofloxacin-loaded dissolving polymeric microneedles as a potential therapeutic for the treatment of S. aureus skin infections. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2022; 13:517-527. [PMID: 35812251 PMCID: PMC9235833 DOI: 10.3762/bjnano.13.43] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 06/01/2022] [Indexed: 05/09/2023]
Abstract
Microneedles have been widely studied for many topical and transdermal therapeutics due to their ability to painlessly puncture the skin, thereby bypassing the stratum corneum, the main skin barrier. In this study, ciprofloxacin (CIP) was loaded into dissolving polymeric microneedles prepared by a two-layer centrifugation method as a potential treatment of skin infections such as cellulitis. The polymers used were polyvinyl alcohol (PVA) and polyvinylpyrrolidone (PVP). Two formulations were investigated, namely CIP_MN1, composed of 10 mg ciprofloxacin incorporated into a polymer matrix of PVA and PVP with a weight ratio of (9:1), and CIP_MN2, composed of 10 mg ciprofloxacin incorporated into PVA polymer. CIP_MN1 and CIP_MN2 showed a mean microneedle height of 188 and 179 µm, respectively. Since Parafilm has been proven as a model to examine the perforation of microneedles in skin, it was used to evaluate the ability of microneedles to perforate the skin. CIP_MN1 showed almost complete perforation of Parafilm, 190 pores, compared to CIP_MN2 which created only 85 pores in Parafilm, and therefore CIP_MN1 was used for subsequent studies. Examining CIP_MN1 on agarose gel as an in vitro model of human skin showed that the formula was able to fully perforate the agarose gel. Moreover, this formula showed significantly greater antimicrobial activity (p < 0.0001) compared to a free gel of ciprofloxacin against Staphylococcus aureus in an agarose gel-based model. This was evidenced by a zone of inhibition of 29 mm for the microneedle formulation of ciprofloxacin (CIP_MN1) compared to 2 mm for the free gel of ciprofloxacin. Furthermore, the CIP_MN1 showed complete dissolution in human skin after 60 min from application. Finally, the skin deposition of CIP_MN1 was investigated in ex vivo excised human skin. CIP_MN1 showed significantly more deposition of ciprofloxacin in deeper skin layers compared to the free gel of ciprofloxacin, and the released ciprofloxacin from the microneedles tends to migrate to deeper layers with time. Collectively, these results suggest that CIP_MN1 can be a potential delivery system for the treatment of S. aureus skin infections.
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Affiliation(s)
| | - Walhan Alshaer
- Cell Therapy Center, University of Jordan, Amman, 11942, Jordan
| | - Yazan Al Thaher
- Faculty of Pharmacy, Philadelphia University, Amman, 19392, Jordan
| | | | - Amal G Al-Bakri
- School of Pharmacy, University of Jordan, Amman, 11942, Jordan
| | - Saja Zuriekat
- School of Pharmacy, University of Jordan, Amman, 11942, Jordan
| | - Randa SH Mansour
- Faculty of Pharmacy, Philadelphia University, Amman, 19392, Jordan
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17
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Mimic Pork Rinds from Plant-Based Gel: The Influence of Sweet Potato Starch and Konjac Glucomannan. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27103103. [PMID: 35630579 PMCID: PMC9143635 DOI: 10.3390/molecules27103103] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 05/07/2022] [Accepted: 05/10/2022] [Indexed: 11/17/2022]
Abstract
This study investigated the effect of sweet potato starch (SPS) and konjac glucomannan (KGM) on the textural, color, sensory, rheological properties, and microstructures of plant-based pork rinds. Plant-based gels were prepared using mixtures of soy protein isolate (SPI), soy oil, and NaHCO3 supplemented with different SPS and KGM concentrations. The texture profile analysis (TPA) results indicated that the hardness, cohesiveness, and chewiness of the samples improved significantly after appropriate SPS and KGM addition. The results obtained via a colorimeter showed no significant differences were found in lightness (L*) between the samples and natural pork rinds after adjusting the SPS and KGM concentrations. Furthermore, the rheological results showed that adding SPS and KGM increased both the storage modulus (G’) and loss modulus (G’’), indicating a firmer gel structure. The images obtained via scanning electron microscopy (SEM) showed that the SPS and KGM contributed to the formation of a more compact gel structure. A mathematical model allowed for a more objective sensory evaluation, with the 40% SPS samples and the 0.4% KGM samples being considered the most similar to natural pork rinds, which provided a comparable texture, appearance, and mouthfeel. This study proposed a possible schematic model for the gelling mechanism of plant-based pork rinds: the three-dimensional network structures of the samples may result from the interaction between SPS, SPI, and soybean oil, while the addition of KGM and NaHCO3 enabled a more stable gel structure.
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18
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Babity S, Couture F, Campos EVR, Hedtrich S, Hagen R, Fehr D, Bonmarin M, Brambilla D. A Naked Eye-Invisible Ratiometric Fluorescent Microneedle Tattoo for Real-Time Monitoring of Inflammatory Skin Conditions. Adv Healthc Mater 2022; 11:e2102070. [PMID: 34921529 DOI: 10.1002/adhm.202102070] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/13/2021] [Indexed: 01/05/2023]
Abstract
The field of portable healthcare monitoring devices has an urgent need for the development of real-time, noninvasive sensing and detection methods for various physiological analytes. Currently, transdermal sensing techniques are severely limited in scope (i.e., measurement of heart rate or sweat composition), or else tend to be invasive, often needing to be performed in a clinical setting. This study proposes a minimally invasive alternative strategy, consisting of using dissolving polymeric microneedles to deliver naked eye-invisible functional fluorescent ratiometric microneedle tattoos directly to the skin for real-time monitoring and quantification of physiological and pathological parameters. Reactive oxygen species are overexpressed in the skin in association with various pathological conditions. Here, one demonstrates for the first time the microneedle-based delivery to the skin of active fluorescent sensors in the form of an invisible, ratiometric microneedle tattoo capable of sensing reactive oxygen species in a reconstructed human-based skin disease model, as well as an in vivo model of UV-induced dermal inflammation. One also elaborates a universal ratiometric quantification concept coupled with a custom-built, multiwavelength portable fluorescence detection system. Fully realized, this approach presents an opportunity for the minimally invasive monitoring of a broad range of physiological parameters through the skin.
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Affiliation(s)
- Samuel Babity
- Faculté de Pharmacie Université de Montréal C.P. 6128, Succursale Centre‐ville, Montréal Québec H3C 3J7 Canada
| | - Frédéric Couture
- TransBIOTech 201 Monseigneur‐Bourget Lévis Québec G6V 6Z9 Canada
- Nutraceuticals and Functional Foods Institute (INAF) Université Laval, Québec Québec G1K 7P4 Canada
- Centre intégré de santé et de services sociaux de Chaudière‐Appalaches Lévis Québec G6E 3E2 Canada
| | - Estefânia V. R. Campos
- Faculty of Pharmaceutical Sciences University of British Columbia 2405 Wesbrook Mall Vancouver British Columbia V6T 1Z3 Canada
- Human and Natural Sciences Center Federal University of ABC Santo Andre SP 09210‐580 Brazil
| | - Sarah Hedtrich
- Faculty of Pharmaceutical Sciences University of British Columbia 2405 Wesbrook Mall Vancouver British Columbia V6T 1Z3 Canada
| | - Raphael Hagen
- School of Engineering Zurich University of Applied Sciences Technikumstrasse 9 Winterthur 8400 Switzerland
| | - Daniel Fehr
- School of Engineering Zurich University of Applied Sciences Technikumstrasse 9 Winterthur 8400 Switzerland
| | - Mathias Bonmarin
- School of Engineering Zurich University of Applied Sciences Technikumstrasse 9 Winterthur 8400 Switzerland
| | - Davide Brambilla
- Faculté de Pharmacie Université de Montréal C.P. 6128, Succursale Centre‐ville, Montréal Québec H3C 3J7 Canada
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19
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Microneedle systems for delivering nucleic acid drugs. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2022; 52:273-292. [PMID: 35003824 PMCID: PMC8726529 DOI: 10.1007/s40005-021-00558-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 12/24/2021] [Indexed: 12/11/2022]
Abstract
Background Nucleic acid-based gene therapy is a promising technology that has been used in various applications such as novel vaccination platforms for infectious/cancer diseases and cellular reprogramming because of its fast, specific, and effective properties. Despite its potential, the parenteral nucleic acid drug formulation exhibits instability and low efficacy due to various barriers, such as stability concerns related to its liquid state formulation, skin barriers, and endogenous nuclease degradation. As promising alternatives, many attempts have been made to perform nucleic acid delivery using a microneedle system. With its minimal invasiveness, microneedle can deliver nucleic acid drugs with enhanced efficacy and improved stability. Area covered This review describes nucleic acid medicines' current state and features and their delivery systems utilizing non-viral vectors and physical delivery systems. In addition, different types of microneedle delivery systems and their properties are briefly reviewed. Furthermore, recent advances of microneedle-based nucleic acid drugs, including featured vaccination applications, are described. Expert opinion Nucleic acid drugs have shown significant potential beyond the limitation of conventional small molecules, and the current COVID-19 pandemic highlights the importance of nucleic acid therapies as a novel vaccination platform. Microneedle-mediated nucleic acid drug delivery is a potential platform for less invasive nucleic acid drug delivery. Microneedle system can show enhanced efficacy, stability, and improved patient convenience through self-administration with less pain.
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Abe H, Sato K, Kimura N, Kusama S, Inoue D, Yamasaki K, Nishizawa M. Porous Microneedle Patch for Electroosmosis‐Promoted Transdermal Delivery of Drugs and Vaccines. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202100066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- Hiroya Abe
- Department of Finemechanics Graduate School of Engineering Tohoku University 6-6-01 Aramaki-aza Aoba, Aoba-ku Sendai 980-8579 Japan
| | - Kaito Sato
- Department of Finemechanics Graduate School of Engineering Tohoku University 6-6-01 Aramaki-aza Aoba, Aoba-ku Sendai 980-8579 Japan
| | - Natsumi Kimura
- Department of Finemechanics Graduate School of Engineering Tohoku University 6-6-01 Aramaki-aza Aoba, Aoba-ku Sendai 980-8579 Japan
| | - Shinya Kusama
- Department of Finemechanics Graduate School of Engineering Tohoku University 6-6-01 Aramaki-aza Aoba, Aoba-ku Sendai 980-8579 Japan
| | - Daisuke Inoue
- Department of Finemechanics Graduate School of Engineering Tohoku University 6-6-01 Aramaki-aza Aoba, Aoba-ku Sendai 980-8579 Japan
| | - Kenshi Yamasaki
- Department of Dermatology Graduate School of Medicine Tohoku University 1-1 Seiryo-machi, Aoba-ku Sendai 980-8574 Japan
| | - Matsuhiko Nishizawa
- Department of Finemechanics Graduate School of Engineering Tohoku University 6-6-01 Aramaki-aza Aoba, Aoba-ku Sendai 980-8579 Japan
- Division for the Establishment of Frontier Sciences of the Organization for Advanced Studies Tohoku University 2-1-1 Katahira, Aoba-ku Sendai 980-8577 Japan
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21
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Murphy BB, Scheid BH, Hendricks Q, Apollo NV, Litt B, Vitale F. Time Evolution of the Skin-Electrode Interface Impedance under Different Skin Treatments. SENSORS (BASEL, SWITZERLAND) 2021; 21:5210. [PMID: 34372446 PMCID: PMC8348734 DOI: 10.3390/s21155210] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 07/22/2021] [Accepted: 07/29/2021] [Indexed: 01/04/2023]
Abstract
A low and stable impedance at the skin-electrode interface is key to high-fidelity acquisition of biosignals, both acutely and in the long term. However, recording quality is highly variable due to the complex nature of human skin. Here, we present an experimental and modeling framework to investigate the interfacial impedance behavior, and describe how skin interventions affect its stability over time. To illustrate this approach, we report experimental measurements on the skin-electrode impedance using pre-gelled, clinical-grade electrodes in healthy human subjects recorded over 24 h following four skin treatments: (i) mechanical abrasion, (ii) chemical exfoliation, (iii) microporation, and (iv) no treatment. In the immediate post-treatment period, mechanical abrasion yields the lowest initial impedance, whereas the other treatments provide modest improvement compared to untreated skin. After 24 h, however, the impedance becomes more uniform across all groups (<20 kΩ at 10 Hz). The impedance data are fitted with an equivalent circuit model of the complete skin-electrode interface, clearly identifying skin-level versus electrode-level contributions to the overall impedance. Using this model, we systematically investigate how time and treatment affect the impedance response, and show that removal of the superficial epidermal layers is essential to achieving a low, long-term stable interface impedance.
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Affiliation(s)
- Brendan B. Murphy
- Department of Bioengineering, 240 Skirkanich Hall, University of Pennsylvania, 210 S. 33rd Street, Philadelphia, PA 19104, USA; (B.B.M.); (B.H.S.); (Q.H.); (B.L.)
- Center for Neuroengineering & Therapeutics, 301 Hayden Hall, University of Pennsylvania, 240 S. 33rd Street, Philadelphia, PA 19104, USA;
- Center for Neurotrauma, Neurodegeneration, and Restoration, Corporal Michael J. Crescenz Veterans Affairs Medical Center, 3900 Woodlawn Ave., Philadelphia, PA 19104, USA
| | - Brittany H. Scheid
- Department of Bioengineering, 240 Skirkanich Hall, University of Pennsylvania, 210 S. 33rd Street, Philadelphia, PA 19104, USA; (B.B.M.); (B.H.S.); (Q.H.); (B.L.)
- Center for Neuroengineering & Therapeutics, 301 Hayden Hall, University of Pennsylvania, 240 S. 33rd Street, Philadelphia, PA 19104, USA;
| | - Quincy Hendricks
- Department of Bioengineering, 240 Skirkanich Hall, University of Pennsylvania, 210 S. 33rd Street, Philadelphia, PA 19104, USA; (B.B.M.); (B.H.S.); (Q.H.); (B.L.)
- Center for Neuroengineering & Therapeutics, 301 Hayden Hall, University of Pennsylvania, 240 S. 33rd Street, Philadelphia, PA 19104, USA;
- Center for Neurotrauma, Neurodegeneration, and Restoration, Corporal Michael J. Crescenz Veterans Affairs Medical Center, 3900 Woodlawn Ave., Philadelphia, PA 19104, USA
| | - Nicholas V. Apollo
- Center for Neuroengineering & Therapeutics, 301 Hayden Hall, University of Pennsylvania, 240 S. 33rd Street, Philadelphia, PA 19104, USA;
- Center for Neurotrauma, Neurodegeneration, and Restoration, Corporal Michael J. Crescenz Veterans Affairs Medical Center, 3900 Woodlawn Ave., Philadelphia, PA 19104, USA
| | - Brian Litt
- Department of Bioengineering, 240 Skirkanich Hall, University of Pennsylvania, 210 S. 33rd Street, Philadelphia, PA 19104, USA; (B.B.M.); (B.H.S.); (Q.H.); (B.L.)
- Center for Neuroengineering & Therapeutics, 301 Hayden Hall, University of Pennsylvania, 240 S. 33rd Street, Philadelphia, PA 19104, USA;
- Department of Neurology, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
| | - Flavia Vitale
- Department of Bioengineering, 240 Skirkanich Hall, University of Pennsylvania, 210 S. 33rd Street, Philadelphia, PA 19104, USA; (B.B.M.); (B.H.S.); (Q.H.); (B.L.)
- Center for Neuroengineering & Therapeutics, 301 Hayden Hall, University of Pennsylvania, 240 S. 33rd Street, Philadelphia, PA 19104, USA;
- Center for Neurotrauma, Neurodegeneration, and Restoration, Corporal Michael J. Crescenz Veterans Affairs Medical Center, 3900 Woodlawn Ave., Philadelphia, PA 19104, USA
- Department of Neurology, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
- Department of Physical Medicine & Rehabilitation, University of Pennsylvania, 1800 Lombard Street, Philadelphia, PA 19147, USA
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22
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Samandari M, Aghabaglou F, Nuutila K, Derakhshandeh H, Zhang Y, Endo Y, Harris S, Barnum L, Kreikemeier-Bower C, Arab-Tehrany E, Peppas NA, Sinha I, Tamayol A. Miniaturized Needle Array-Mediated Drug Delivery Accelerates Wound Healing. Adv Healthc Mater 2021; 10:e2001800. [PMID: 33586339 DOI: 10.1002/adhm.202001800] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 01/05/2021] [Indexed: 12/26/2022]
Abstract
A major impediment preventing normal wound healing is insufficient vascularization, which causes hypoxia, poor metabolic support, and dysregulated physiological responses to injury. To combat this, the delivery of angiogenic factors, such as vascular endothelial growth factor (VEGF), has been shown to provide modest improvement in wound healing. Here, the importance of specialty delivery systems is explored in controlling wound bed drug distribution and consequently improving healing rate and quality. Two intradermal drug delivery systems, miniaturized needle arrays (MNAs) and liquid jet injectors (LJIs), are evaluated to compare effective VEGF delivery into the wound bed. The administered drug's penetration depth and distribution in tissue are significantly different between the two technologies. These systems' capability for efficient drug delivery is first confirmed in vitro and then assessed in vivo. While topical administration of VEGF shows limited effectiveness, intradermal delivery of VEGF in a diabetic murine model accelerates wound healing. To evaluate the translational feasibility of the strategy, the benefits of VEGF delivery using MNAs are assessed in a porcine model. The results demonstrate enhanced angiogenesis, reduced wound contraction, and increased regeneration. These findings show the importance of both therapeutics and delivery strategy in wound healing.
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Affiliation(s)
- Mohamadmahdi Samandari
- Department of Biomedical Engineering, University of Connecticut, Farmington, CT, 06030, USA
| | - Fariba Aghabaglou
- Department of Biomedical Engineering and Neurosurgery, Johns Hopkins University, Baltimore, MD, USA
| | - Kristo Nuutila
- Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Hossein Derakhshandeh
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE, 68508, USA
| | - Yuteng Zhang
- Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Yori Endo
- Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Seth Harris
- Veterinary Diagnostic Center, School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Lindsay Barnum
- Department of Biomedical Engineering, University of Connecticut, Farmington, CT, 06030, USA
| | | | | | - Nicholas A Peppas
- Department of Biomedical Engineering and Chemical Engineering, Department of Pediatrics and Surgery, Dell Medical School, Department of Molecular Pharmaceutics and Drug Delivery, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Indranil Sinha
- Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Ali Tamayol
- Department of Biomedical Engineering, University of Connecticut, Farmington, CT, 06030, USA
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE, 68508, USA
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23
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Ramalheiro A, Paris JL, Silva BFB, Pires LR. Rapidly dissolving microneedles for the delivery of cubosome-like liquid crystalline nanoparticles with sustained release of rapamycin. Int J Pharm 2020; 591:119942. [PMID: 33039495 DOI: 10.1016/j.ijpharm.2020.119942] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 09/15/2020] [Accepted: 09/28/2020] [Indexed: 12/15/2022]
Abstract
In this study, we developed a system for the transdermal delivery and controlled release of the hydrophobic immunosuppressive drug rapamycin, foreseeing an application in psoriasis treatment. To do so, rapamycin was encapsulated in phytantriol-based cubosome-like liquid crystalline nanoparticles stabilized with pluronic F127. The final mass percent composition of the lipid nanoparticles was 0.25% phytantriol, 0.1% pluronic F127, 4.75% ethanol and 94.9% water. These particles showed a rapamycin encapsulation efficiency above 95% and a sustained in vitrodrug release profile throughout 14 days. Subsequently the rapamycin-carrying particles were incorporated into rapidly dissolving microneedle patches composed of a polymeric matrix of poly(vinylpyrrolidone) and poly(vinyl alcohol). Confocal microscopy allowed to infer the preferential distribution of the cubosome-like particles at the tip and baseplate of the microneedles. The fabricated microneedles showed successful piercing and deposition of the loaded cubosome-like particles on a skin-mimicking agarose gel. Finally, the rapamycin-loaded cubosome-like particles showed antiproliferative activity in natural killer cells in vitro. The results here presented show the potential of the developed system to deliver cubosome-like particles into the skin and promote the sustained release of rapamycin in the context of immunomodulation.
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Affiliation(s)
- Ana Ramalheiro
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal; Instituto Superior Técnico, Lisboa, Portugal
| | - Juan L Paris
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal
| | - Bruno F B Silva
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal.
| | - Liliana R Pires
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal.
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24
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Del Río-Sancho S, Pan Delgado D, de la Fuente GF, García-Caballero T, Taboada-Suárez A, Csaba N, Bao-Varela C, José Alonso M. Laser-induced transient skin disruption to enhance cutaneous drug delivery. Eur J Pharm Biopharm 2020; 156:165-175. [PMID: 32891732 DOI: 10.1016/j.ejpb.2020.08.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 08/12/2020] [Accepted: 08/27/2020] [Indexed: 11/26/2022]
Abstract
The use of pressure waves (PW) to disrupt the stratum corneum (SC) temporarily is an effective strategy to increase the deposition of drug molecules into the skin. However, given the rather modest outcomes when compared with ablation-assisted drug delivery, its potential has been underestimated. Accordingly, the aim of this study was to examine the impact of Resonant Amplitude Waves (RAWs) on increasing cutaneous delivery. RAW phenomena are triggered by focusing a high-peak-power pulsed laser onto an appropriate transducer structure, under space- and time-controlled resolution. In order to determine the optimal conditions for the generation and use of RAWs, a screening of laser parameters setting and an analysis of different geometries of the impact pattern over diverse materials used as transducers was performed, analyzing the footprint of the RAW waves in an agarose gel. The results obtained were then checked and fine-tuned using human skin samples instead of agarose. Furthermore, ex vivo experiments were carried out to characterize the effect of the RAWs in the cutaneous delivery of diclofenac (DIC) and lidocaine (LID) administered in the form of gels. The application of RAWs resulted in an increased delivery of DIC and LID to the skin, whose intensity was dependent on the composition of the formulation. In fact, the maximum observed for DIC and LID in short-time experiments (39.1 ± 11.1 and 153 ± 16 µg/cm2, respectively) was comparable to those observed using ablation-assisted drug delivery under the same conditions. In conclusion, the combination of RAWs with specific formulation strategies is a feasible alternative for the cutaneous delivery of drug candidates when short onset of action is required.
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Affiliation(s)
- Sergio Del Río-Sancho
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Av. Barcelona s/n, Campus Vida, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Diego Pan Delgado
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Av. Barcelona s/n, Campus Vida, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Germán F de la Fuente
- Instituto de Nanociencia y Materiales de Aragón, CSIC - Universidad de Zaragoza, María de Luna 3, Zaragoza, Spain
| | - Tomás García-Caballero
- Department of Morphological Sciences, School of Medicine, University Clinical Hospital, IDIS, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Antonio Taboada-Suárez
- Department of Plastic Surgery, University Hospital Complex of Santiago de Compostela, A Coruña, Spain
| | - Noemi Csaba
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Av. Barcelona s/n, Campus Vida, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Carmen Bao-Varela
- UA Microóptica & Óptica GRIN (USC-CSIC), Photonics4 life group, Facultade de Física e Facultade de Óptica e Optometría, Universidade Santiago Compostela, Santiago de Compostela, Spain
| | - María José Alonso
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Av. Barcelona s/n, Campus Vida, Universidade de Santiago de Compostela, Santiago de Compostela, Spain; Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, Universidade de Santiago de Compostela, Santiago de Compostela, Spain; Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain.
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25
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Pires LR, Amado IR, Gaspar J. Dissolving microneedles for the delivery of peptides – Towards tolerance-inducing vaccines. Int J Pharm 2020; 586:119590. [DOI: 10.1016/j.ijpharm.2020.119590] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 06/23/2020] [Accepted: 06/26/2020] [Indexed: 01/31/2023]
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26
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Liang X, Zhang J, Ou H, Chen J, Mitragotri S, Chen M. Skin Delivery of siRNA Using Sponge Spicules in Combination with Cationic Flexible Liposomes. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 20:639-648. [PMID: 32380414 PMCID: PMC7210381 DOI: 10.1016/j.omtn.2020.04.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 04/07/2020] [Accepted: 04/13/2020] [Indexed: 01/22/2023]
Abstract
We report the topical administration of sponge Haliclona sp. Spicules (SHS) combined with cationic flexible liposomes (CFL) to increase the delivery of small interfering RNA (siRNA) into viable skin cells in vitro and in vivo. SHS can be applied topically as novel microneedles to overcome skin barrier by creating plenty of new microchannels in stratum corneum. Subsequently, well-designed CFL can be also utilized topically as nanocarriers to overcome skin cells membrane by delivering siRNA to skin deep layers through these microchannels and thereby facilitating their cell internalization. The topical application of SHS in combination with CFL (0.05% of lipids, w/v), referred to as CFL(0.05%), enhanced siRNA skin penetration in vitro by 72.95 ± 2.97-fold compared to control group (p < 0.001). Further, the topical application of SHS in combination with CFL(0.05%) on female BALB/c mice skin resulted in 29.21% ± 1.41% of glyceraldehyde-3-phosphate dehydrogenase (GAPDH) knockdown at all application area in vivo, which was not significantly different from the GAPDH protein knockdown rate in the subcutaneous injection center. However, the high knockdown rate only appears in the vicinity (<0.5 cm) of the injection center. In sum, this study provides a promising strategy of topical delivery of siRNA by the combined used of SHS and well-designed CFL.
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Affiliation(s)
- XueJiao Liang
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, Department of Marine Biological Science & Technology, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
| | - JiaLiang Zhang
- Department of Pharmacy, Dong Fang Hospital (Fuzhou General Hospital), Medical College of Xiamen University, Xiamen University, Fouzhou 350025, China
| | - HuiLong Ou
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, Department of Marine Biological Science & Technology, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
| | - Jun Chen
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, Department of Marine Biological Science & Technology, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
| | - Samir Mitragotri
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
| | - Ming Chen
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, Department of Marine Biological Science & Technology, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China; State Key Laboratory of Marine Environmental Science, College of Ocean & Earth Sciences, Xiamen University, Xiamen 361102, China.
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27
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Derakhshandeh H, Aghabaglou F, McCarthy A, Mostafavi A, Wiseman C, Bonick Z, Ghanavati I, Harris S, Kreikemeier-Bower C, Basri SMM, Rosenbohm J, Yang R, Mostafalu P, Orgill D, Tamayol A. A Wirelessly Controlled Smart Bandage with 3D-Printed Miniaturized Needle Arrays. ADVANCED FUNCTIONAL MATERIALS 2020; 30:1905544. [PMID: 34354556 PMCID: PMC8336080 DOI: 10.1002/adfm.201905544] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Indexed: 05/18/2023]
Abstract
Chronic wounds are one of the most devastating complications of diabetes and are the leading cause of nontraumatic limb amputation. Despite the progress in identifying factors and promising in vitro results for the treatment of chronic wounds, their clinical translation is limited. Given the range of disruptive processes necessary for wound healing, different pharmacological agents are needed at different stages of tissue regeneration. This requires the development of wearable devices that can deliver agents to critical layers of the wound bed in a minimally invasive fashion. Here, for the first time, a programmable platform is engineered that is capable of actively delivering a variety of drugs with independent temporal profiles through miniaturized needles into deeper layers of the wound bed. The delivery of vascular endothelial growth factor (VEGF) through the miniaturized needle arrays demonstrates that, in addition to the selection of suitable therapeutics, the delivery method and their spatial distribution within the wound bed is equally important. Administration of VEGF to chronic dermal wounds of diabetic mice using the programmable platform shows a significant increase in wound closure, re-epithelialization, angiogenesis, and hair growth when compared to standard topical delivery of therapeutics.
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Affiliation(s)
- Hossein Derakhshandeh
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
| | - Fariba Aghabaglou
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
| | - Alec McCarthy
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
| | - Azadeh Mostafavi
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
| | - Chris Wiseman
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
| | - Zack Bonick
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
| | - Ian Ghanavati
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
| | - Seth Harris
- Veterinary Diagnostic Center, School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln Lincoln, NE 68583, USA
| | | | - Seyed Masoud Moosavi Basri
- Department of Biomedical Engineering, American University of Sharjah, Sharjah 26666, United Arab Emirates
| | - Jordan Rosenbohm
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
| | - Ruiguo Yang
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
| | - Pooria Mostafalu
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA
| | - Dennis Orgill
- Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Ali Tamayol
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA
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28
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Implantable powder-carrying microneedles for transdermal delivery of high-dose insulin with enhanced activity. Biomaterials 2020; 232:119733. [DOI: 10.1016/j.biomaterials.2019.119733] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 12/20/2019] [Accepted: 12/25/2019] [Indexed: 01/08/2023]
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29
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Poly (vinyl alcohol)/chitosan layer-by-layer microneedles for cancer chemo-photothermal therapy. Int J Pharm 2020; 576:118907. [DOI: 10.1016/j.ijpharm.2019.118907] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/14/2019] [Accepted: 11/24/2019] [Indexed: 12/27/2022]
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30
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Sigurdsson SA, Yu Z, Lee J, Nurmikko A. A method for large-scale implantation of 3D microdevice ensembles into brain and soft tissue. MICROSYSTEMS & NANOENGINEERING 2020; 6:97. [PMID: 34567706 PMCID: PMC8433454 DOI: 10.1038/s41378-020-00210-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/11/2020] [Accepted: 08/07/2020] [Indexed: 05/16/2023]
Abstract
Wireless networks of implantable electronic sensors and actuators at the microscale (sub-mm) level are being explored for monitoring and modulation of physiological activity for medical diagnostics and therapeutic purposes. Beyond the requirement of integrating multiple electronic or chemical functions within small device volumes, a key challenge is the development of high-throughput methods for the implantation of large numbers of microdevices into soft tissues with minimal damage. To that end, we have developed a method for high-throughput implantation of ~100-200 µm size devices, which are here simulated by proxy microparticle ensembles. While generally applicable to subdermal tissue, our main focus and experimental testbed is the implantation of microparticles into the brain. The method deploys a scalable delivery tool composed of a 2-dimensional array of polyethylene glycol-tipped microneedles that confine the microparticle payloads. Upon dissolution of the bioresorbable polyethylene glycol, the supporting array structure is retrieved, and the microparticles remain embedded in the tissue, distributed spatially and geometrically according to the design of the microfabricated delivery tool. We first evaluated the method in an agarose testbed in terms of spatial precision and throughput for up to 1000 passive spherical and planar microparticles acting as proxy devices. We then performed the same evaluations by implanting particles into the rat cortex under acute conditions and assessed the tissue injury produced by our method of implantation under chronic conditions.
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Affiliation(s)
| | - Zeyang Yu
- Department of Neurology, Massachusetts General Hospital, Boston, MA 02114 USA
| | - Joonhee Lee
- Department of Physics and Astronomy, West Virginia University, Morgantown, WV 26506 USA
- Department of Neuroscience, West Virginia University, Morgantown, WV 26506 USA
| | - Arto Nurmikko
- School of Engineering, Brown University, Providence, RI 02912 USA
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31
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Ranamukhaarachchi SA, Stoeber B. Determining the factors affecting dynamic insertion of microneedles into skin. Biomed Microdevices 2019; 21:100. [PMID: 31745652 DOI: 10.1007/s10544-019-0449-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Microneedles are extremely small and minimally-invasive intradermal drug delivery devices that require controlled, accurate, and repeatable insertions into human skin to perform their functions. Due to high variability and elasticity of human skin, dynamic insertion methods are being sought to ensure success in microneedle insertions into the skin passed the tough stratum corneum layer. Dynamic microneedle insertions have not been thoroughly studied to identify and assess the key parameters influencing the skin fracture to date. Here, we have utilized a previously validated artificial mechanical human skin model to identify and evaluate the factors affecting microneedle insertion. It was determined that a microneedle's velocity at impact against the skin played the most crucial role in successfully inserting microneedle devices of different geometrical features (i.e., tip area) and array size (i.e., number of projections). The findings presented herein will facilitate the development of automated microneedle insertion devices that will enable user-friendly and error-free applications of microneedle technologies for medicine delivery.
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Affiliation(s)
- Sahan A Ranamukhaarachchi
- Department of Electrical and Computer Engineering, The University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Boris Stoeber
- Department of Electrical and Computer Engineering, The University of British Columbia, Vancouver, BC, V6T 1Z4, Canada.
- Department of Mechanical Engineering, The University of British Columbia, Vancouver, BC, V6T 1Z4, Canada.
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32
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Chen Z, Ye R, Yang J, Lin Y, Lee W, Li J, Ren L, Liu B, Jiang L. Rapidly Fabricated Microneedle Arrays Using Magnetorheological Drawing Lithography for Transdermal Drug Delivery. ACS Biomater Sci Eng 2019; 5:5506-5513. [PMID: 33464070 DOI: 10.1021/acsbiomaterials.9b00919] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Microneedle arrays (MAs) are among the most promising transdermal drug delivery systems in the last decades due to its minimally invasive nature, convenient operation, and first-pass-metabolism avoidance. However, most MA fabrication methods are difficult to operate, need multiple steps, or require expensive equipment. A novel magnetorheological drawing lithography approach was proposed to rapidly fabricate a flexible microneedle array (FMA) for transdermal drug delivery. A 3D structural liquid MA was drawn in one step from the droplets of curable magnetorheological fluid and maintained its shape under an external magnetic field. The liquid MA was subsequently solidified and sputter-coated with the Ti/Au film to fabricate FMA. FMA morphology, mechanical properties, and transdermal drug delivery performance in vitro were experimentally investigated. FMA consisted of a 5 × 5 cone-shaped microneedle array on a PET flexible substrate. FMA exhibited good strength and excellent penetration performance. It could easily penetrate into skin without breakage, creating microchannels for the promotion of skin permeability. Drugs could be well permeated and diffused in the skin along the microchannels created by FMA. Finally, a dissolvable microneedle array (DMA) was also fabricated by a micromolding technique using FMA as a master template. The DMA exhibited good dissolvable and permeable performance in the agarose block.
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Affiliation(s)
- Zhipeng Chen
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou 510275, P. R. China
| | - Rui Ye
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou 510275, P. R. China
| | - Jingbo Yang
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou 510275, P. R. China
| | - Yinyan Lin
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou 510275, P. R. China
| | - Weihsian Lee
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou 510275, P. R. China
| | - Jingwei Li
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou 510275, P. R. China
| | - Lei Ren
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou 510275, P. R. China
| | - Bin Liu
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou 510275, P. R. China
| | - Lelun Jiang
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou 510275, P. R. China
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33
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Chablani L, Tawde SA, Akalkotkar A, D'Souza MJ. Evaluation of a Particulate Breast Cancer Vaccine Delivered via Skin. AAPS JOURNAL 2019; 21:12. [PMID: 30604321 DOI: 10.1208/s12248-018-0285-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 12/11/2018] [Indexed: 12/16/2022]
Abstract
Breast cancer impacts female population globally and is the second most common cancer for females. With various limitations and adverse effects of current therapies, several immunotherapies are being explored. Development of an effective breast cancer vaccine can be a groundbreaking immunotherapeutic approach. Such approaches are being evaluated by several clinical trials currently. On similar lines, our research study aims to evaluate a particulate breast cancer vaccine delivered via skin. This particulate breast cancer vaccine was prepared by spray drying technique and utilized murine breast cancer whole cell lysate as a source of tumor-associated antigens. The average size of the particulate vaccine was 1.5 μm, which resembled the pathogenic species, thereby assisting in phagocytosis and antigen presentation leading to further activation of the immune response. The particulate vaccine was delivered via skin using commercially available metal microneedles. Methylene blue staining and confocal microscopy were used to visualize the microchannels. The results showed that microneedles created aqueous conduits of 50 ± 10 μm to deliver the microparticulate vaccine to the skin layers. Further, an in vivo comparison of immune response depicted significantly higher concentration of serum IgG, IgG2a, and B and T cell (CD4+ and CD8+) populations in the vaccinated animals than the control animals (p < 0.001). Upon challenge with live murine breast cancer cells, the vaccinated animals showed five times more tumor suppression than the control animals confirming the immune response activation and protection (p < 0.001). This research paves a way for individualized immunotherapy following surgical tumor removal to prolong relapse episodes.
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Affiliation(s)
- Lipika Chablani
- Department of Pharmaceutical Science, Wegmans School of Pharmacy, St. John Fisher College, 3690 East Ave., Rochester, New York, 14618, USA.
| | - Suprita A Tawde
- Research and Development, Nexus Pharmaceuticals, Vernon Hills, Illinois, 60061, USA
| | | | - Martin J D'Souza
- Vaccine Nanotechnology Laboratory, Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Mercer University, Atlanta, Georgia, 30341, USA
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35
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Zhang S, Ou H, Liu C, Zhang Y, Mitragotri S, Wang D, Chen M. Skin Delivery of Hydrophilic Biomacromolecules Using Marine Sponge Spicules. Mol Pharm 2017; 14:3188-3200. [PMID: 28763230 DOI: 10.1021/acs.molpharmaceut.7b00468] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the development of sponge Haliclona sp. spicules, referred to as SHS, and its topical application in skin delivery of hydrophilic biomacromolecules, a series of fluorescein isothiocyanate-dextrans (FDs). SHS are silicious oxeas which are sharp-edged and rod-shaped (∼120 μm in length and ∼7 μm in diameter). SHS can physically disrupt skin in a dose-dependent manner and retain within the skin over at least 72 h, which allows sustained skin penetration of hydrophilic biomacromolecules. The magnitude of enhancement of FD delivery into skin induced by SHS treatment was dependent on its molecular weight. Specifically, SHS topical application enhanced FD-10 (MW: 10 kDa) penetration into porcine skin in vitro by 33.09 ± 7.16-fold compared to control group (p < 0.01). SHS dramatically increased the accumulation of FD-10 into and across the dermis by 62.32 ± 13.48-fold compared to the control group (p < 0.01). In vivo experiments performed using BALB/c mice also confirmed the effectiveness of SHS topical application; the skin absorption of FD-10 with SHS topical application was 72.14 ± 48.75-fold (p < 0.05) and 15.39 ± 9.91-fold (p < 0.05) higher than those from the PBS and Dermaroller microneedling, respectively. Further, skin irritation study and transepidermal water loss (TEWL) measurement using guinea pig skin in vivo indicated that skin disruption induced by SHS treatment is self-limited and can be recovered with time and efficiently. SHS can offer a safe, effective, and sustained skin delivery of hydrophilic biomacromolecules and presents a promising platform technology for a wide range of cosmetic and medical applications.
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Affiliation(s)
- Saiman Zhang
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, College of Ocean and Earth Sciences, Xiamen University , Xiamen 361102, PR China.,Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources , Xiamen 361102, PR China
| | - Huilong Ou
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, College of Ocean and Earth Sciences, Xiamen University , Xiamen 361102, PR China
| | - Chunyun Liu
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, College of Ocean and Earth Sciences, Xiamen University , Xiamen 361102, PR China.,Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources , Xiamen 361102, PR China
| | - Yuan Zhang
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, College of Ocean and Earth Sciences, Xiamen University , Xiamen 361102, PR China
| | - Samir Mitragotri
- Center for Bioengineering, Department of Chemical Engineering, University of California , Santa Barbara 93106, United States
| | - Dexiang Wang
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, College of Ocean and Earth Sciences, Xiamen University , Xiamen 361102, PR China
| | - Ming Chen
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, College of Ocean and Earth Sciences, Xiamen University , Xiamen 361102, PR China.,Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources , Xiamen 361102, PR China
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Kuang T, Chang L, Peng X, Hu X, Gallego-Perez D. Molecular Beacon Nano-Sensors for Probing Living Cancer Cells. Trends Biotechnol 2017; 35:347-359. [DOI: 10.1016/j.tibtech.2016.09.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 09/02/2016] [Accepted: 09/07/2016] [Indexed: 01/30/2023]
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Su LC, Chen MC. Efficient delivery of nanoparticles to deep skin layers using dissolvable microneedles with an extended-length design. J Mater Chem B 2017; 5:3355-3363. [DOI: 10.1039/c7tb00451f] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Dissolvable microneedles with an extended-length design can efficiently deliver NPs to the deep skin layers and prolong the skin retention time of NPs up to 5 days.
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Affiliation(s)
- Liang-Cheng Su
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan
- Taiwan
| | - Mei-Chin Chen
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan
- Taiwan
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Abstract
The advent of microneedle (MN) technology has provided a revolutionary platform for the delivery of therapeutic agents, particularly in the field of gene therapy. For over 20 years, the area of gene therapy has undergone intense innovation and progression which has seen advancement of the technology from an experimental concept to a widely acknowledged strategy for the treatment and prevention of numerous disease states. However, the true potential of gene therapy has yet to be achieved due to limitations in formulation and delivery technologies beyond parenteral injection of the DNA. Microneedle-mediated delivery provides a unique platform for the delivery of DNA therapeutics clinically. It provides a means to overcome the skin barriers to gene delivery and deposit the DNA directly into the dermal layers, a key site for delivery of therapeutics to treat a wide range of skin and cutaneous diseases. Additionally, the skin is a tissue rich in immune sentinels, an ideal target for the delivery of a DNA vaccine directly to the desired target cell populations. This review details the advancement of MN-mediated DNA delivery from proof-of-concept to the delivery of DNA encoding clinically relevant proteins and antigens and examines the key considerations for the improvement of the technology and progress into a clinically applicable delivery system.
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Abstract
This review aims to concisely chart the development of two individual research fields, namely nanomedicines, with specific emphasis on nanoparticles (NP) and microparticles (MP), and microneedle (MN) technologies, which have, in the recent past, been exploited in combinatorial approaches for the efficient delivery of a variety of medicinal agents across the skin. This is an emerging and exciting area of pharmaceutical sciences research within the remit of transdermal drug delivery and as such will undoubtedly continue to grow with the emergence of new formulation and fabrication methodologies for particles and MN. Firstly, the fundamental aspects of skin architecture and structure are outlined, with particular reference to their influence on NP and MP penetration. Following on from this, a variety of different particles are described, as are the diverse range of MN modalities currently under development. The review concludes by highlighting some of the novel delivery systems which have been described in the literature exploiting these two approaches and directs the reader towards emerging uses for nanomedicines in combination with MN.
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Zhou Q, Ma Y, Wang Z, Wang K, Liu R, Han Z, Zhang M, Li S, Gu Y. Optimized Ultrasound Conditions for Enhanced Sensitivity of Molecular Beacons in the Detection of MDR1 mRNA in Living Cells. Anal Chem 2016; 88:2808-16. [DOI: 10.1021/acs.analchem.5b04503] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Qiumei Zhou
- State Key Laboratory of Natural
Medicines, Department of Biomedical Engineering, School of Life Science
and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Yi Ma
- State Key Laboratory of Natural
Medicines, Department of Biomedical Engineering, School of Life Science
and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Zhaohui Wang
- State Key Laboratory of Natural
Medicines, Department of Biomedical Engineering, School of Life Science
and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Ke Wang
- State Key Laboratory of Natural
Medicines, Department of Biomedical Engineering, School of Life Science
and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Ruonan Liu
- State Key Laboratory of Natural
Medicines, Department of Biomedical Engineering, School of Life Science
and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Zhihao Han
- State Key Laboratory of Natural
Medicines, Department of Biomedical Engineering, School of Life Science
and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Min Zhang
- State Key Laboratory of Natural
Medicines, Department of Biomedical Engineering, School of Life Science
and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Siwen Li
- State Key Laboratory of Natural
Medicines, Department of Biomedical Engineering, School of Life Science
and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Yueqing Gu
- State Key Laboratory of Natural
Medicines, Department of Biomedical Engineering, School of Life Science
and Technology, China Pharmaceutical University, Nanjing 210009, China
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Foldvari M, Chen DW, Nafissi N, Calderon D, Narsineni L, Rafiee A. Non-viral gene therapy: Gains and challenges of non-invasive administration methods. J Control Release 2015; 240:165-190. [PMID: 26686079 DOI: 10.1016/j.jconrel.2015.12.012] [Citation(s) in RCA: 155] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 11/26/2015] [Accepted: 12/09/2015] [Indexed: 12/20/2022]
Abstract
Gene therapy is becoming an influential part of the rapidly increasing armamentarium of biopharmaceuticals for improving health and combating diseases. Currently, three gene therapy treatments are approved by regulatory agencies. While these treatments utilize viral vectors, non-viral alternative technologies are also being developed to improve the safety profile and manufacturability of gene carrier formulations. We present an overview of gene-based therapies focusing on non-viral gene delivery systems and the genetic therapeutic tools that will further revolutionize medical treatment with primary focus on the range and development of non-invasive delivery systems for dermal, transdermal, ocular and pulmonary administrations and perspectives on other administration methods such as intranasal, oral, buccal, vaginal, rectal and otic delivery.
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Affiliation(s)
- Marianna Foldvari
- School of Pharmacy, Waterloo Institute of Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada; Center for Bioengineering and Biotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
| | - Ding Wen Chen
- School of Pharmacy, Waterloo Institute of Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada; Center for Bioengineering and Biotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
| | - Nafiseh Nafissi
- School of Pharmacy, Waterloo Institute of Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada; Center for Bioengineering and Biotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
| | - Daniella Calderon
- School of Pharmacy, Waterloo Institute of Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada; Center for Bioengineering and Biotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
| | - Lokesh Narsineni
- School of Pharmacy, Waterloo Institute of Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada; Center for Bioengineering and Biotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
| | - Amirreza Rafiee
- School of Pharmacy, Waterloo Institute of Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada; Center for Bioengineering and Biotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
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Larrañeta E, Stewart S, Fallows SJ, Birkhäuer LL, McCrudden MTC, Woolfson AD, Donnelly RF. A facile system to evaluate in vitro drug release from dissolving microneedle arrays. Int J Pharm 2015; 497:62-9. [PMID: 26621687 PMCID: PMC4722988 DOI: 10.1016/j.ijpharm.2015.11.038] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 11/18/2015] [Accepted: 11/21/2015] [Indexed: 12/04/2022]
Abstract
The use of biological tissues in the in vitro assessments of dissolving (?) microneedle (MN) array mechanical strength and subsequent drug release profiles presents some fundamental difficulties, in part due to inherent variability of the biological tissues employed. As a result, these biological materials are not appropriate for routine used in industrial formulation development or quality control (QC) tests. In the present work a facile system using Parafilm M® (PF) to test drug permeation performance using dissolving MN arrays is proposed. Dissolving MN arrays containing 196 needles (600 μm needle height) were inserted into a single layer of PF and a hermetic “pouch” was created including the array inside. The resulting system was placed in a dissolution bath and the release of model molecules was evaluated. Different MN formulations were tested using this novel setup, releasing between 40 and 180 μg of their cargos after 6 h. The proposed system is a more realistic approach for MN testing than the typical performance test described in the literature for conventional transdermal patches. Additionally, the use of PF membrane was tested either in the hermetic “pouch” and using Franz Cell methodology yielding comparable release curves. Microscopy was used in order to ascertain the insertion of the different MN arrays in the PF layer. The proposed system appears to be a good alternative to the use of Franz cells in order to compare different MN formulations. Given the increasing industrial interest in MN technology, the proposed system has potential as a standardised drug/active agent release test for quality control purposes.
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Affiliation(s)
- Eneko Larrañeta
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Sarah Stewart
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Steven J Fallows
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Lena L Birkhäuer
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | | | - A David Woolfson
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
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Belikov AV, Skrypnik AV, Shatilova KV, Tuchin VV. Multi-beam laser-induced hydrodynamic shock waves used for delivery of microparticles and liquids in skin. Lasers Surg Med 2015; 47:723-36. [DOI: 10.1002/lsm.22417] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/07/2015] [Indexed: 01/31/2023]
Affiliation(s)
- Andrey V. Belikov
- Saint Petersburg National Research University of Information Technologies; Mechanics and Optics; Saint-Petersburg 197101 Russian Federation
| | - Alexei V. Skrypnik
- Saint Petersburg National Research University of Information Technologies; Mechanics and Optics; Saint-Petersburg 197101 Russian Federation
| | - Ksenia V. Shatilova
- Saint Petersburg National Research University of Information Technologies; Mechanics and Optics; Saint-Petersburg 197101 Russian Federation
| | - Valery V. Tuchin
- Research-Educational Institute of Optics and Biophotonics; Saratov State University; Saratov 410012 Russian Federation
- Institute of Precise Mechanics and Control of Russian Academy of Sciences; Saratov 410028 Russian Federation
- Laboratory of Biophotonics; Tomsk State University; Tomsk 634050 Russian Federation
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44
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Zhi D, Feng PF, Sun JL, Guo F, Zhang R, Zhao X, Li BX. The enhancement of cardiac toxicity by concomitant administration of Berberine and macrolides. Eur J Pharm Sci 2015; 76:149-55. [DOI: 10.1016/j.ejps.2015.05.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 03/10/2015] [Accepted: 05/10/2015] [Indexed: 02/04/2023]
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Karimi M, Solati N, Ghasemi A, Estiar MA, Hashemkhani M, Kiani P, Mohamed E, Saeidi A, Taheri M, Avci P, Aref AR, Amiri M, Baniasadi F, Hamblin MR. Carbon nanotubes part II: a remarkable carrier for drug and gene delivery. Expert Opin Drug Deliv 2015; 12:1089-105. [PMID: 25613837 PMCID: PMC4475451 DOI: 10.1517/17425247.2015.1004309] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
INTRODUCTION Carbon nanotubes (CNT) have recently been studied as novel and versatile drug and gene delivery vehicles. When CNT are suitably functionalized, they can interact with various cell types and are taken up by endocytosis. AREAS COVERED Anti-cancer drugs cisplatin and doxorubicin have been delivered by CNT, as well as methotrexate, taxol and gemcitabine. The delivery of the antifungal compound amphotericin B and the oral administration of erythropoietin have both been assisted using CNT. Frequently, targeting moieties such as folic acid, epidermal growth factor or various antibodies are attached to the CNT-drug nanovehicle. Different kinds of functionalization (e.g., polycations) have been used to allow CNT to act as gene delivery vectors. Plasmid DNA, small interfering RNA and micro-RNA have all been delivered by CNT vehicles. Significant concerns are raised about the nanotoxicology of the CNT and their potentially damaging effects on the environment. EXPERT OPINION CNT-mediated drug delivery has been studied for over a decade, and both in vitro and in vivo studies have been reported. The future success of CNTs as vectors in vivo and in clinical application will depend on achievement of efficacious therapy with minimal adverse effects and avoidance of possible toxic and environmentally damaging effects.
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Affiliation(s)
- Mahdi Karimi
- Iran University of Medical Sciences, School of Advanced Technologies in Medicine, Department of Nanotechnology, Tehran, Iran
| | - Navid Solati
- Iran University of Science and Technology, School of Metallurgy and Materials Engineering, Tehran, Iran
| | - Amir Ghasemi
- Sharif University of Technology, Department of Materials Science and Engineering, Polymeric Materials Research Group, Tehran, 11365-9466, Iran
| | - Mehrdad Asghari Estiar
- Tehran University of Medical Sciences, School of Medicine, Department of Medical Genetics, Tehran, Iran
| | - Mahshid Hashemkhani
- Iran University of Science and Technology, School of Metallurgy and Materials Engineering, Tehran, Iran
| | - Parnian Kiani
- Iran University of Science and Technology, School of Metallurgy and Materials Engineering, Tehran, Iran
| | - Elmira Mohamed
- Iran University of Science and Technology, School of Metallurgy and Materials Engineering, Tehran, Iran
| | - Ahad Saeidi
- Iran University of Science and Technology, School of Metallurgy and Materials Engineering, Tehran, Iran
| | - Mahdiar Taheri
- Iran University of Science and Technology, School of Metallurgy and Materials Engineering, Tehran, Iran
| | - Pinar Avci
- Massachusetts General Hospital, Wellman Center for Photomedicine, Boston, MA 02114, USA
- Harvard Medical School, Department of Dermatology, Boston, MA 02115, USA
| | - Amir R Aref
- Dana-Farber Cancer Institute, Center for Cancer Systems Biology, Department of Cancer Biology, Boston, MA 02215, USA
- Harvard Medical School, Department of Genetics, Boston, MA 02215, USA
| | - Mohammad Amiri
- Sharif University of Technology, Department of Materials Science and Engineering, Polymeric Materials Research Group, Tehran, 11365-9466, Iran
| | - Fazel Baniasadi
- Sharif University of Technology, Department of Materials Science and Engineering, Polymeric Materials Research Group, Tehran, 11365-9466, Iran
| | - Michael R Hamblin
- Massachusetts General Hospital, Wellman Center for Photomedicine, Boston, MA 02114, USA
- Harvard Medical School, Department of Dermatology, Boston, MA 02115, USA
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
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47
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Hogan NC, Taberner AJ, Jones LA, Hunter IW. Needle-free delivery of macromolecules through the skin using controllable jet injectors. Expert Opin Drug Deliv 2015; 12:1637-48. [PMID: 26004884 DOI: 10.1517/17425247.2015.1049531] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Transdermal delivery of drugs has a number of advantages in comparison to other routes of administration. The mechanical properties of skin, however, impose a barrier to administration and so most compounds are administered using hypodermic needles and syringes. In order to overcome some of the issues associated with the use of needles, a variety of non-needle devices based on jet injection technology has been developed. AREAS COVERED Jet injection has been used primarily for vaccine administration but has also been used to deliver macromolecules such as hormones, monoclonal antibodies and nucleic acids. A critical component in the more recent success of jet injection technology has been the active control of pressure applied to the drug during the time course of injection. EXPERT OPINION Jet injection systems that are electronically controllable and reversible offer significant advantages over conventional injection systems. These devices can consistently create the high pressures and jet speeds necessary to penetrate tissue and then transition smoothly to a lower jet speed for delivery of the remainder of the desired dose. It seems likely that in the future this work will result in smart drug delivery systems incorporated into personal medical devices and medical robots for in-home disease management and healthcare.
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Affiliation(s)
- Nora C Hogan
- a 1 Massachusetts Institute of Technology, Department of Mechanical Engineering , 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Andrew J Taberner
- b 2 University of Auckland, Auckland Bioengineering Institute and Department of Engineering Science , 70 Symonds Street, Auckland 1010, New Zealand
| | - Lynette A Jones
- c 3 Massachusetts Institute of Technology, Department of Mechanical Engineering , 77 Massachusetts Avenue, Cambridge, MA 02139, USA +1 617 253 3973 ; +1 617 253 2218 ;
| | - Ian W Hunter
- d 4 Massachusetts Institute of Technology, Department of Mechanical Engineering , 77 Massachusetts Avenue, Cambridge, MA 02139, USA
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48
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Microneedle assisted micro-particle delivery by gene guns: Mathematical model formulation and experimental verification. Chem Eng Sci 2015. [DOI: 10.1016/j.ces.2014.06.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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49
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Han T, Das DB. Potential of combined ultrasound and microneedles for enhanced transdermal drug permeation: a review. Eur J Pharm Biopharm 2014; 89:312-28. [PMID: 25541440 DOI: 10.1016/j.ejpb.2014.12.020] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2014] [Revised: 12/11/2014] [Accepted: 12/15/2014] [Indexed: 11/28/2022]
Abstract
Transdermal drug delivery (TDD) is limited by the outer layer of the skin, i.e., the stratum corneum. Research on TDD has become very active in the recent years and various technologies have been developed to overcome the resistance of the stratum corneum to molecular diffusion. In particular, researchers have started to consider the possibility of combining the TDD technologies in order to have further increase in drug permeability. Both microneedles (MNs) and ultrasound are promising technologies. They achieve enhancement in drug permeation via different mechanisms and therefore give a good potential for combining with each other. This review will focus on discussing the potential of this combinational technique along with other important issues, e.g., the mechanisms of ultrasound and MNs as it is and these mechanisms which are coupled via the two systems (i.e. MNs and ultrasound). We discuss the possible ways to achieve this combination as well as how this combination would increase the permeability. Some of the undeveloped (weaker) research areas of MNs and sonophoresis are also discussed in order to understand the true potential of combining the two technologies when they are developed further in the future. We propose several hypothetical combinations based on the possible mechanisms involved in MNs and ultrasound. Furthermore, we carry out a cluster analysis by which we determine the significance of this combinational method in comparison with some other selected combinational methods for TDD (e.g., MNs and iontophoresis). Using a time series analysis tool (ARIMA model), the current trend and the future development of combined MNs and ultrasound are also analysed. Overall, the review in this paper indicates that combining MNs and ultrasound is a promising TDD method for the future.
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Affiliation(s)
- Tao Han
- Chemical Engineering Department, Loughborough University, Loughborough, UK
| | - Diganta Bhusan Das
- Chemical Engineering Department, Loughborough University, Loughborough, UK.
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50
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Wu J, Xu S, Jiang W, Shen Y, Pu M. Facile preparation of a pH-sensitive nano-magnetic targeted system to deliver doxorubicin to tumor tissues. Biotechnol Lett 2014; 37:585-91. [DOI: 10.1007/s10529-014-1708-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 10/21/2014] [Indexed: 01/18/2023]
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