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Yang Z, Li H, Yang B, Liu Y. Albumin-Based Microneedles for Spatiotemporal Delivery of Temozolomide and Niclosamide to Resistant Glioblastoma. ACS APPLIED MATERIALS & INTERFACES 2024; 16:44518-44527. [PMID: 39145481 DOI: 10.1021/acsami.4c09394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
Glioblastoma (GBM) is the most common and aggressive malignant brain tumor. Standard therapy includes maximal surgical resection, radiotherapy, and adjuvant temozolomide (TMZ) administration. However, the rapid development of TMZ resistance and the impermeability of the blood-brain barrier (BBB) significantly hinder the therapeutic efficacy. Herein, we developed spatiotemporally controlled microneedle patches (BMNs) loaded with TMZ and niclosamide (NIC) to overcome GBM resistance. We found that hyaluronic acid (HA) increased the viscosity of bovine serum albumin (BSA) and evidenced that concentrations of BSA/HA exert an impact degradation rates exposure to high-temperature treatment, showing that the higher BSA/HA concentrations result in slower drug release. To optimize drug release rates and ensure synergistic antitumor effects, a 15% BSA/HA solution constituting the bottoms of BMNs was chosen to load TMZ, showing sustained drug release for over 28 days, guaranteeing long-term DNA damage in TMZ-resistant cells (U251-TR). Needle tips made from 10% BSA/HA solution loaded with NIC released the drug within 14 days, enhancing TMZ's efficacy by inhibiting the activity of O6-methylguanine-DNA methyltransferase (MGMT). BMNs exhibit superior mechanical properties, bypass the BBB, and gradually release the drug into the tumor periphery, thus significantly inhibiting tumor proliferation and expanding median survival in mice. The on-demand delivery of BMNs patches shows a strong translational potential for clinical applications, particularly in synergistic GBM treatment.
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Affiliation(s)
- Zhipeng Yang
- Institute of Biomedical Engineering and Technology, Academy for Engineering & Technology, Fudan University, Shanghai 200433, China
| | - Haoyuan Li
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, United States
| | - Biao Yang
- Shanghai Medical College, Fudan University, Shanghai 200040, China
| | - Yanjie Liu
- Henan University of Chinese Medicine, Zhengzhou, Henan 450046, China
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2
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Choi HJ, Ullah A, Jang MJ, Lee US, Shin MC, An SH, Kim D, Kim BH, Kim GM. Microneedle patch casting using a micromachined carbon master for enhanced drug delivery. Sci Rep 2024; 14:19228. [PMID: 39164355 PMCID: PMC11335881 DOI: 10.1038/s41598-024-70393-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 08/16/2024] [Indexed: 08/22/2024] Open
Abstract
For successful treatment of diseases, sufficient therapeutics must be provided to the body. Microneedle applications in therapeutic delivery and analytics sampling are restricted because of various issues, including smaller area for drug loading and analytics sampling. To achieve sufficient drug loading and analytics sampling and improve drug penetration while maintaining painless administration, patch-type microneedle arrays were designed and fabricated using polymer casting from a conical cavity mold. Microcavities were formed on a carbon plate via micromechanical machining. A porous polymer layer was coated on a microneedle patch (MNP). The pores of the porous polymer layer provided space and channels for drug delivery. A pH-sensitive polymer layer was employed to cap the porous polymer layer, which prevented drug leakage during storage and provided a stimulus drug release in response to body pH conditions. The drug can be delivered through holes connected to both sides of the patch. The drug release of the MNP was investigated in vitro and in vivo and showed conceptual proof that these MNs have the potential to enhance treatment protocols for various diseases with the flexibility of coating and therapeutic materials and offer significant scope for further variations and advancement.
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Affiliation(s)
- Hye Jin Choi
- School of Mechanical Engineering, Kyungpook National University, Daegu, 41566, South Korea
| | - Asad Ullah
- Department of Mechanical Engineering, University of Engineering and Technology, Mardan, Khyber Pakhtunkhwa, 23200, Pakistan
| | - Mi Jin Jang
- Preclinical Research Center, Daegu Gyeongbuk Medical Innovation Foundation, Daegu, 41061, South Korea
| | - Ui Seok Lee
- Department of Mechanical Engineering, Graduate School, Soongsil University, 369 Sangdo-ro, Dongjak-gu, Seoul, 06978, Republic of Korea
| | - Min Chul Shin
- School of Mechanical Engineering, Kyungpook National University, Daegu, 41566, South Korea
| | - Sang Hyun An
- Preclinical Research Center, Daegu Gyeongbuk Medical Innovation Foundation, Daegu, 41061, South Korea
| | - Dongseon Kim
- Preclinical Research Center, Daegu Gyeongbuk Medical Innovation Foundation, Daegu, 41061, South Korea
| | - Bo Hyun Kim
- School of Mechanical Engineering, Soongsil University, Seoul, 06978, South Korea.
| | - Gyu Man Kim
- School of Mechanical Engineering, Kyungpook National University, Daegu, 41566, South Korea.
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3
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Guo J, Kong S, Lian Y, Zhao M. Recent bio-applications of covalent organic framework-based nanomaterials. Chem Commun (Camb) 2024; 60:918-934. [PMID: 38168699 DOI: 10.1039/d3cc04368a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Appearing as a new class of functional organic materials, covalent organic frameworks (COFs) have aroused a huge wave of interest in versatile fields ever since they were first proposed in 2005. Thanks to but not limited to their ultralight weights, high surface areas, ordered channels, variable functional groups and well-defined crystal structures, the applications of COF-based biomaterials in the fields of drug loading and delivery, photodynamic therapy, photothermal therapy, bioimaging, etc. are comprehensively summarized and introduced. The existing challenges and future prospects for this emerging but hot research direction are also discussed. It is hoped that this review will serve as a guidance for future research on COFs as multifunctional bioplatforms.
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Affiliation(s)
- Jun Guo
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Chemistry, Tiangong University, Tianjin 300387, China.
| | - Shuyue Kong
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Chemistry, Tiangong University, Tianjin 300387, China.
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, Tianjin 300072, China.
| | - Ye Lian
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Chemistry, Tiangong University, Tianjin 300387, China.
| | - Meiting Zhao
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, Tianjin 300072, China.
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4
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Malek-Khatabi A, Sadat Razavi M, Abdollahi A, Rahimzadeghan M, Moammeri F, Sheikhi M, Tavakoli M, Rad-Malekshahi M, Faraji Rad Z. Recent progress in PLGA-based microneedle-mediated transdermal drug and vaccine delivery. Biomater Sci 2023; 11:5390-5409. [PMID: 37387317 DOI: 10.1039/d3bm00795b] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
Microneedles (MNs) have recently been found to have applications in drug, vitamin, protein and vaccine delivery. Polymeric MN arrays continue to attract increasing attention due to their capability to bypass the skin's stratum corneum (SC) barrier with minimal invasiveness. These carriers can achieve the targeted intradermal delivery of drugs and vaccines and improve their transdermal delivery level. As a nontoxic FDA-approved copolymer, polylactic glycolic acid (PLGA) has good biocompatibility and biodegradability. Currently, PLGA-based MNs have a noticeable tendency to be utilized as a delivery system. This study focuses on the most recent advances in PLGA-based MNs. Both PLGA nanoparticle-based MNs and PLGA matrix-based MNs, created for the delivery of vaccines, drugs, proteins and other therapeutic agents, are discussed. The paper also discusses the various types of MNs and their potential applications. Finally, the prospects and challenges of PLGA-based MNs are reviewed.
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Affiliation(s)
- Atefeh Malek-Khatabi
- Department of Pharmaceutical Biomaterials and Medical Biomaterials Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Malihe Sadat Razavi
- Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Alyeh Abdollahi
- Department of Pharmaceutical Biomaterials and Medical Biomaterials Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Milad Rahimzadeghan
- Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Moammeri
- Department of Laboratory Sciences, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mojgan Sheikhi
- Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohamadreza Tavakoli
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mazda Rad-Malekshahi
- Department of Pharmaceutical Biomaterials and Medical Biomaterials Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Faraji Rad
- School of Engineering, University of Southern Queensland, Springfield, QLD 4300, Australia.
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5
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Khalid R, Mahmood S, Mohamed Sofian Z, Hilles AR, Hashim NM, Ge Y. Microneedles and Their Application in Transdermal Delivery of Antihypertensive Drugs-A Review. Pharmaceutics 2023; 15:2029. [PMID: 37631243 PMCID: PMC10459756 DOI: 10.3390/pharmaceutics15082029] [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: 06/07/2023] [Revised: 06/30/2023] [Accepted: 07/12/2023] [Indexed: 08/27/2023] Open
Abstract
One of the most cutting-edge, effective, and least invasive pharmaceutical innovations is the utilization of microneedles (MNs) for drug delivery, patient monitoring, diagnostics, medicine or vaccine delivery, and other medical procedures (e.g., intradermal vaccination, allergy testing, dermatology, and blood sampling). The MN-based system offers many advantages, such as minimal cost, high medical effectiveness, comparatively good safety, and painless drug application. Drug delivery through MNs can possibly be viewed as a viable instrument for various macromolecules (e.g., proteins, peptides, and nucleic acids) that are not efficiently administered through traditional approaches. This review article provides an overview of MN-based research in the transdermal delivery of hypertensive drugs. The critical attributes of microneedles are discussed, including the mechanism of drug release, pharmacokinetics, fabrication techniques, therapeutic applications, and upcoming challenges. Furthermore, the therapeutic perspective and improved bioavailability of hypertensive drugs that are poorly aqueous-soluble are also discussed. This focused review provides an overview of reported studies and the recent progress of MN-based delivery of hypertensive drugs, paving the way for future pharmaceutical uses. As MN-based drug administration bypasses first-pass metabolism and the high variability in drug plasma levels, it has grown significantly more important for systemic therapy. In conclusion, MN-based drug delivery of hypertensive drugs for increasing bioavailability and patient compliance could support a new trend of hypertensive drug delivery and provide an alternative option, overcoming the restrictions of the current dosage forms.
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Affiliation(s)
- Ramsha Khalid
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (R.K.); (Z.M.S.)
| | - Syed Mahmood
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (R.K.); (Z.M.S.)
| | - Zarif Mohamed Sofian
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (R.K.); (Z.M.S.)
| | - Ayah R. Hilles
- INHART, International Islamic University Malaysia, Jalan Gombak, Kuala Lumpur 53100, Malaysia;
| | - Najihah Mohd Hashim
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur 50603, Malaysia;
- Center for Natural Products Research and Drug Discovery (CENAR), Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Yi Ge
- School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK
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6
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Fathi-Karkan S, Heidarzadeh M, Narmi MT, Mardi N, Amini H, Saghati S, Abrbekoh FN, Saghebasl S, Rahbarghazi R, Khoshfetrat AB. Exosome-loaded microneedle patches: Promising factor delivery route. Int J Biol Macromol 2023:125232. [PMID: 37302628 DOI: 10.1016/j.ijbiomac.2023.125232] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 05/20/2023] [Accepted: 06/03/2023] [Indexed: 06/13/2023]
Abstract
During the past decades, the advent of different microneedle patch (MNPs) systems paves the way for the targeted and efficient delivery of several growth factors into the injured sites. MNPs consist of several micro-sized (25-1500 μm) needle rows for painless delivery of incorporated therapeutics and increase of regenerative outcomes. Recent data have indicated the multifunctional potential of varied MNP types for clinical applications. Advances in the application of materials and fabrication processes enable researchers and clinicians to apply several MNP types for different purposes such as inflammatory conditions, ischemic disease, metabolic disorders, vaccination, etc. Exosomes (Exos) are one of the most interesting biological bioshuttles that participate in cell-to-cell paracrine interaction with the transfer of signaling biomolecules. These nano-sized particles, ranging from 50 to 150 nm, can exploit several mechanisms to enter the target cells and deliver their cargo into the cytosol. In recent years, both intact and engineered Exos have been increasingly used to accelerate the healing process and restore the function of injured organs. Considering the numerous benefits provided by MNPs, it is logical to hypothesize that the development of MNPs loaded with Exos provides an efficient therapeutic platform for the alleviation of several pathologies. In this review article, the authors collected recent advances in the application of MNP-loaded Exos for therapeutic purposes.
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Affiliation(s)
- Sonia Fathi-Karkan
- Department of Advanced Sciences and Technologies in Medicine, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Morteza Heidarzadeh
- Koç University Research Center for Translational Medicine (KUTTAM), Rumeli Feneri, 34450 Sariyer, Istanbul, Turkey
| | | | - Narges Mardi
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hassan Amini
- Department of General and Vascular Surgery, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sepideh Saghati
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Solmaz Saghebasl
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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Luo X, Yang L, Cui Y. Microneedles: materials, fabrication, and biomedical applications. Biomed Microdevices 2023; 25:20. [PMID: 37278852 PMCID: PMC10242236 DOI: 10.1007/s10544-023-00658-y] [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] [Accepted: 04/23/2023] [Indexed: 06/07/2023]
Abstract
The microneedles have attracted great interests for a wide range of transdermal biomedical applications, such as biosensing and drug delivery, due to the advantages of being painless, semi-invasive, and sustainable. The ongoing challenges are the materials and fabrication methods of the microneedles in order to obtain a specific shape, configuration and function of the microneedles to achieve a target biomedical application. Here, this review would introduce the types of materials of the microneedles firstly. The hardness, Young's modulus, geometric structure, processability, biocompatibility and degradability of the microneedles are explored as well. Then, the fabrication methods for the solid and hollow microneedles in recent years are reviewed in detail, and the advantages and disadvantages of each process are analyzed and compared. Finally, the biomedical applications of the microneedles are reviewed, including biosensing, drug delivery, body fluid extraction, and nerve stimulation. It is expected that this work provides the fundamental knowledge for developing new microneedle devices, as well as the applications in a variety of biomedical fields.
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Affiliation(s)
- Xiaojin Luo
- School of Materials Science and Engineering, Peking University, First Hospital Interdisciplinary Research Center, Peking University, Beijing, 100871, People's Republic of China
| | - Li Yang
- Renal Division, Peking University First Hospital, Peking University Institute of Nephrology, Key Laboratory of Renal Disease, Ministry of Health of China, Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, 100034, People's Republic of China.
| | - Yue Cui
- School of Materials Science and Engineering, Peking University, First Hospital Interdisciplinary Research Center, Peking University, Beijing, 100871, People's Republic of China.
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Han W, Liu F, Liu G, Li H, Xu Y, Sun S. Research progress of physical transdermal enhancement techniques in tumor therapy. Chem Commun (Camb) 2023; 59:3339-3359. [PMID: 36815500 DOI: 10.1039/d2cc06219d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The advancement and popularity of transdermal drug delivery (TDD) based on the physical transdermal enhancement technique (PTET) has opened a new paradigm for local tumor treatment. The drug can be directly delivered to the tumor site through the skin, thus avoiding the toxic side effects caused by the first-pass effect and achieving high patient compliance. Further development of PTETs has provided many options for antitumor drugs and laid the foundation for future applications of wearable closed-loop targeting drug delivery systems. In this highlight, the different types of PTETs and related mechanisms, and applications of PTET-related tumor detection and therapy are highlighted. According to their type and characteristics, PTETs are categorized as follows: (1) iontophoresis, (2) electroporation, (3) ultrasound, (4) thermal ablation, and (5) microneedles. PTET-related applications in the local treatment of tumors are categorized as follows: (1) melanoma, (2) breast tumor, (3) squamous cell carcinoma, (4) cervical tumor, and (5) others. The challenges and future prospects of existing PTETs are also discussed. This highlight will provide guidance for the design of PTET-based wearable closed-loop targeting drug delivery systems and personalized therapy for tumors.
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Affiliation(s)
- Weiqiang Han
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Fengyu Liu
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian 116023, P. R. China.
| | - Guoxin Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Hongjuan Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Yongqian Xu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Shiguo Sun
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Metallic Microneedles for Transdermal Drug Delivery: Applications, Fabrication Techniques and the Effect of Geometrical Characteristics. BIOENGINEERING (BASEL, SWITZERLAND) 2022; 10:bioengineering10010024. [PMID: 36671595 PMCID: PMC9855189 DOI: 10.3390/bioengineering10010024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/17/2022] [Accepted: 12/15/2022] [Indexed: 12/28/2022]
Abstract
Current procedures for transdermal drug delivery (TDD) have associated limitations including poor administration of nucleic acid, small or large drug molecules, pain and stress for needle phobic people. A painless micro-sized device capable of delivering drugs easily and efficiently, eliminating the disadvantages of traditional systems, has yet to be developed. While polymeric-based microneedle (MN) arrays have been used successfully and clinically as TDD systems, these devices lack mechanical integrity, piercing capacity and the ability to achieve tailored drug release into the systemic circulation. Recent advances in micro/nano fabrication techniques using Additive Manufacturing (AM), also known as 3D printing, have enabled the fabrication of metallic MN arrays, which offer the potential to overcome the limitations of existing systems. This review summarizes the different types of MNs used in TDD and their mode of drug delivery. The application of MNs in the treatment of a range of diseases including diabetes and cancer is discussed. The potential role of solid metallic MNs in TDD, the various techniques used for their fabrication, and the influence of their geometrical characteristics (e.g., shape, size, base diameter, thickness, and tip sharpness) on effective TDD are explored. Finally, the potential and the future directions relating to the optimization of metallic MN arrays for TDD are highlighted.
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Remiro PDFR, Nagahara MHT, Azoubel RA, Franz-Montan M, d’Ávila MA, Moraes ÂM. Polymeric Biomaterials for Topical Drug Delivery in the Oral Cavity: Advances on Devices and Manufacturing Technologies. Pharmaceutics 2022; 15:pharmaceutics15010012. [PMID: 36678640 PMCID: PMC9864928 DOI: 10.3390/pharmaceutics15010012] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/03/2022] [Accepted: 12/10/2022] [Indexed: 12/24/2022] Open
Abstract
There are several routes of drug administration, and each one has advantages and limitations. In the case of the topical application in the oral cavity, comprising the buccal, sublingual, palatal, and gingival regions, the advantage is that it is painless, non-invasive, allows easy application of the formulation, and it is capable of avoiding the need of drug swallowing by the patient, a matter of relevance for children and the elderly. Another advantage is the high permeability of the oral mucosa, which may deliver very high amounts of medication rapidly to the bloodstream without significant damage to the stomach. This route also allows the local treatment of lesions that affect the oral cavity, as an alternative to systemic approaches involving injection-based methods and oral medications that require drug swallowing. Thus, this drug delivery route has been arousing great interest in the pharmaceutical industry. This review aims to condense information on the types of biomaterials and polymers used for this functionality, as well as on production methods and market perspectives of this topical drug delivery route.
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Affiliation(s)
- Paula de Freitas Rosa Remiro
- Department of Engineering of Materials and of Bioprocesses, School of Chemical Engineering, University of Campinas, Campinas 13083-852, SP, Brazil
| | - Mariana Harue Taniguchi Nagahara
- Department of Engineering of Materials and of Bioprocesses, School of Chemical Engineering, University of Campinas, Campinas 13083-852, SP, Brazil
| | - Rafael Abboud Azoubel
- Department of Manufacturing and Materials Engineering, School of Mechanical Engineering, University of Campinas, Campinas 13083-860, SP, Brazil
| | - Michelle Franz-Montan
- Department of Biosciences, Piracicaba Dental School, University of Campinas, Piracicaba 13414-903, SP, Brazil
| | - Marcos Akira d’Ávila
- Department of Manufacturing and Materials Engineering, School of Mechanical Engineering, University of Campinas, Campinas 13083-860, SP, Brazil
| | - Ângela Maria Moraes
- Department of Engineering of Materials and of Bioprocesses, School of Chemical Engineering, University of Campinas, Campinas 13083-852, SP, Brazil
- Correspondence:
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Liu RX, He YT, Liang L, Hu LF, Liu Y, Yu RX, Chen BZ, Cui Y, Guo XD. Mechanical evaluation of polymer microneedles for transdermal drug delivery: In vitro and in vivo. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Chen X, Xiao H, Zhao Q, Xu X, Cen Y, Xiao D. Research hotspot and trend of microneedles in biomedical field: A bibliometric analysis from 2011 to 2020. Burns 2022; 48:959-972. [PMID: 35504768 DOI: 10.1016/j.burns.2022.04.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 04/12/2022] [Accepted: 04/15/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Microneedles composed of arrays of micro-sized needles assembled on a patch, has attracted increasing interest in transdermal drug delivery due to its ease of use and lack of painful responses. Here, a bibliometric analysis was conducted to determine a hotspot and trend of microneedles in the biomedical field. METHODS All relevant articles about microneedles between 2011 and 2020 were obtained from the databases of Web of Science (WOS) and PubMed of the National Center for Biotechnology Information (NCBI). A series of software such as VOSviwewer, the online bibliometric analysis website, CiteSpace, BICOMB and gCLUTO were used to process the data and get visual images. Processed data and visualized images were conducted to predict the trend of this research field. RESULTS The number of articles published over the last decade had increased rapidly (37 in 2011, 165 in 2020), the Journal of Controlled Release was the most productive journal in microneedle studies. The United States was the most productive country, while the Queens Univ Belfast topped the other institutions. Ryan F Donnelly was the most productive author in the field, while the two most cited articles were published by Gu Zhen group. More importantly, the research trend of microneedles had ranged from physicochemical properties and pharmacokinetics to insulin transdermal injection and vaccine development over the past decade. The four hot spots in microneedle studies, including skin rejuvenation, vaccines, fabrication technology and insulin delivery, were identified. Microneedle vaccination shows promising application prospects, and polymers are considered as the most promising materials for microneedles manufacturing. CONCLUSIONS This study will help researchers understand the hot spots and trends of microneedles in the biomedical field accurately and quickly. Moreover, the exploitation of novel polymeric microneedles will be a solid direction for subsequent research and development of transdermal drug delivery.
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Affiliation(s)
- Xinghan Chen
- Department of Burns and Plastic Surgery, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China; Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Haitao Xiao
- Department of Burns and Plastic Surgery, West China Hospital Sichuan University, Chengdu, Sichuan, China
| | - Qiao Zhao
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xuewen Xu
- Department of Burns and Plastic Surgery, West China Hospital Sichuan University, Chengdu, Sichuan, China
| | - Ying Cen
- Department of Burns and Plastic Surgery, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China; Department of Burns and Plastic Surgery, West China Hospital Sichuan University, Chengdu, Sichuan, China
| | - Dongqin Xiao
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China.
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Mansoor I, Eassa HA, Mohammed KHA, Abd El-Fattah MA, Abdo MH, Rashad E, Eassa HA, Saleh A, Amin OM, Nounou MI, Ghoneim O. Microneedle-Based Vaccine Delivery: Review of an Emerging Technology. AAPS PharmSciTech 2022; 23:103. [PMID: 35381906 PMCID: PMC8982652 DOI: 10.1208/s12249-022-02250-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 03/06/2022] [Indexed: 12/23/2022] Open
Abstract
Vaccination has produced a great improvement to the global health by decreasing/eradicating many infectious diseases responsible for significant morbidity and mortality. Thanks to vaccines, many infections affecting childhood have been greatly decreased or even eradicated (smallpox, measles, and polio). That is why great efforts are made to achieve mass vaccination against COVID-19. However, developed vaccines face many challenges with regard to their safety and stability. Moreover, needle phobia could prevent a significant proportion of the population from receiving vaccines. In this context, microneedles (MNs) could potentially present a solution to address these challenges. MNs represent single dose administration systems that do not need reconstitution or cold-chain storage. Being self-administered, pain-free, and capable of producing superior immunogenicity makes them a more attractive alternative. This review explores microneedles’ types, safety, and efficacy in vaccine delivery. Preclinical and clinical studies for microneedle-based vaccines are discussed and patent examples are included.
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14
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Nadine S, Chung A, Diltemiz SE, Yasuda B, Lee C, Hosseini V, Karamikamkar S, de Barros NR, Mandal K, Advani S, Zamanian BB, Mecwan M, Zhu Y, Mofidfar M, Zare MR, Mano J, Dokmeci MR, Alambeigi F, Ahadian S. Advances in microfabrication technologies in tissue engineering and regenerative medicine. Artif Organs 2022; 46:E211-E243. [PMID: 35349178 DOI: 10.1111/aor.14232] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/02/2022] [Accepted: 02/28/2022] [Indexed: 12/17/2022]
Abstract
BACKGROUND Tissue engineering provides various strategies to fabricate an appropriate microenvironment to support the repair and regeneration of lost or damaged tissues. In this matter, several technologies have been implemented to construct close-to-native three-dimensional structures at numerous physiological scales, which are essential to confer the functional characteristics of living tissues. METHODS In this article, we review a variety of microfabrication technologies that are currently utilized for several tissue engineering applications, such as soft lithography, microneedles, templated and self-assembly of microstructures, microfluidics, fiber spinning, and bioprinting. RESULTS These technologies have considerably helped us to precisely manipulate cells or cellular constructs for the fabrication of biomimetic tissues and organs. Although currently available tissues still lack some crucial functionalities, including vascular networks, innervation, and lymphatic system, microfabrication strategies are being proposed to overcome these issues. Moreover, the microfabrication techniques that have progressed to the preclinical stage are also discussed. CONCLUSIONS This article aims to highlight the advantages and drawbacks of each technique and areas of further research for a more comprehensive and evolving understanding of microfabrication techniques in terms of tissue engineering and regenerative medicine applications.
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Affiliation(s)
- Sara Nadine
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA.,CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Ada Chung
- Department of Psychology, University of California-Los Angeles, Los Angeles, California, USA
| | | | - Brooke Yasuda
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA.,Department of Psychology, University of California-Los Angeles, Los Angeles, California, USA
| | - Charles Lee
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA.,Department of Veterinary Pathobiology, Texas A&M University, College Station, Texas, USA.,Station 1, Lawrence, Massachusetts, USA
| | - Vahid Hosseini
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA
| | - Solmaz Karamikamkar
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA
| | | | - Kalpana Mandal
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA
| | - Shailesh Advani
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA
| | | | - Marvin Mecwan
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA
| | - Yangzhi Zhu
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA
| | - Mohammad Mofidfar
- Department of Chemistry, Stanford University, Palo Alto, California, USA
| | | | - João Mano
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Mehmet Remzi Dokmeci
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA
| | - Farshid Alambeigi
- Walker Department of Mechanical Engineering, University of Texas at Austin, Austin, Texas, USA
| | - Samad Ahadian
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA
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15
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Li W, Meng J, Ma X, Lin J, Lu X. Advanced materials for the delivery of vaccines for infectious diseases. BIOSAFETY AND HEALTH 2022. [DOI: 10.1016/j.bsheal.2022.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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16
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Trends in Drug- and Vaccine-based Dissolvable Microneedle Materials and Methods of Fabrication. Eur J Pharm Biopharm 2022; 173:54-72. [DOI: 10.1016/j.ejpb.2022.02.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 01/24/2022] [Accepted: 02/19/2022] [Indexed: 12/18/2022]
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17
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Bao L, Park J, Bonfante G, Kim B. Recent advances in porous microneedles: materials, fabrication, and transdermal applications. Drug Deliv Transl Res 2022; 12:395-414. [PMID: 34415566 PMCID: PMC8724174 DOI: 10.1007/s13346-021-01045-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/08/2021] [Indexed: 12/20/2022]
Abstract
In the past two decades, microneedles (MNs), as a painless and simple drug delivery system, have received increasing attention for various biomedical applications such as transdermal drug delivery, interstitial fluid (ISF) extraction, and biosensing. Among the various types of MNs, porous MNs have been recently researched owing to their distinctive and unique characteristics, where porous structures inside MNs with continuous nano- or micro-sized pores can transport drugs or biofluids by capillary action. In addition, a wide range of materials, including non-polymers and polymers, were researched and used to form the porous structures of porous MNs. Adjustable porosity by different fabrication methods enables the achievement of sufficient mechanical strength by optimising fluid flows inside MNs. Moreover, biocompatible porous MNs integrated with biosensors can offer portable detection and rapid measurement of biomarkers in a minimally invasive manner. This review focuses on several aspects of current porous MN technology, including material selection, fabrication processes, biomedical applications, primarily covering transdermal drug delivery, ISF extraction, and biosensing, along with future prospects as well as challenges.
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Affiliation(s)
- Leilei Bao
- Institute of Industrial Science, The University of Tokyo, Tokyo, Japan
| | - Jongho Park
- Institute of Industrial Science, The University of Tokyo, Tokyo, Japan
| | | | - Beomjoon Kim
- Institute of Industrial Science, The University of Tokyo, Tokyo, Japan.
- LIMMS/CNRS-IIS UMI 2820, The University of Tokyo, Tokyo, Japan.
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18
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Prabhu A, Jose J, Kumar L, Salwa S, Vijay Kumar M, Nabavi SM. Transdermal Delivery of Curcumin-Loaded Solid Lipid Nanoparticles as Microneedle Patch: an In Vitro and In Vivo Study. AAPS PharmSciTech 2022; 23:49. [PMID: 34988698 DOI: 10.1208/s12249-021-02186-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 11/29/2021] [Indexed: 01/08/2023] Open
Abstract
Curcumin is well known for its neuroprotective effect, and also able to alleviate Parkinsonian features. Clinical application of curcumin is limited due to its low bioavailability. Hence, we hypothesized that the microneedles (MN) containing drug-loaded solid lipid nanoparticles (SLNs) may be able to improve its bioavailability and efficacy. The SLNs were prepared with microemulsion technique using glyceryl monostearate as a lipid and tween 80 as a stabilizer. The particle size, polydispersity index, zeta potential, and entrapment efficiency of prepared SLNs were determined. The optimized formulation was incorporated into microneedle arrays using micromolding technique and fabricated microneedle patch were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, optical microscopy, ex vivo permeation studies, histology studies, and fluorescent microscopy. The fabricated microneedle patch was also evaluated for neuroprotective activity and skin irritation potential. Fourier transform infrared spectroscopy studies of SLNs and microneedles confirmed the chemical compatibility of excipients with curcumin. The developed microneedles were also found to be non-irritant with decreased degree of bradykinesia, high motor coordination, and balance ability. The study provided a theoretical basis for the use of novel microneedle containing curcumin-loaded solid lipid nanoparticles as a useful tool for the treatment of Parkinson's disease.
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19
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Qian HL, Huang WP, Fang Y, Zou LY, Yu WJ, Wang J, Ren KF, Xu ZK, Ji J. Fabrication of "Spongy Skin" on Diversified Materials Based on Surface Swelling Non-Solvent-Induced Phase Separation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:57000-57008. [PMID: 34816710 DOI: 10.1021/acsami.1c18333] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Porous surfaces have attracted tremendous interest for customized incorporation of functional agents on biomedical devices. However, the versatile preparation of porous structures on complicated devices remains challenging. Herein, we proposed a simple and robust method to fabricate "spongy skin" on diversified polymeric substrates based on non-solvent-induced phase separation (NIPS). Through the swelling and the subsequent phase separation process, interconnected porous structures were directly formed onto the polymeric substrates. The thickness and pore size could be regulated in the ranges of 5-200 and 0.3-0.75 μm, respectively. The fast capillary action of the porous structure enabled controllable loading and sustained release of ofloxacin and bovine albumin at a high loading dosage of 79.9 and 24.1 μg/cm2, respectively. We verified that this method was applicable to diversified materials including polymethyl methacrylate, polystyrene, thermoplastic polyurethane, polylactide acid, and poly(lactic-co-glycolic acid) and can be realized onto TCPS cell culture plates. This NIPS-based method is promising to generate porous surfaces on medical devices for incorporating therapeutic agents.
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Affiliation(s)
- Hong-Lin Qian
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Wei-Pin Huang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yu Fang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ling-Yun Zou
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Wei-Jiang Yu
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jing Wang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ke-Feng Ren
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhi-Kang Xu
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jian Ji
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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20
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Ruan S, Zhang Y, Feng N. Microneedle-mediated transdermal nanodelivery systems: a review. Biomater Sci 2021; 9:8065-8089. [PMID: 34752590 DOI: 10.1039/d1bm01249e] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The greatest limitation in the development of transdermal drug delivery systems is that only a few drugs can permeate the skin due to the barrier function of the stratum corneum. Active and passive methods are generally available for improving the ability of drug transdermal delivery. However, nanoparticles, as a passive approach, exhibit capacity-constrained permeation enhancement. Thus, microneedle-mediated nanoparticles possess enormous potential and broad prospects. Microneedles promote the penetration of macromolecules by creating microchannels on the skin surface. In this review, the prevailing subknowledge on microneedles (mechanism, classification, and applications of microneedles combined with nanoparticles) is discussed to provide a guideline for readers and a basic reference for further in-depth studies of this novel drug delivery system.
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Affiliation(s)
- Shuyao Ruan
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Yongtai Zhang
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Nianping Feng
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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21
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22
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Sha W, Fu J, Guo F. Wetting characteristics of polymer adhesives with different chain bending stiffness. HIGH PERFORM POLYM 2021. [DOI: 10.1177/09540083211035016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Polymer adhesives are widely used in daily applications and in industry owing to their flexibility and overall non-toxicity, particularly in interfacial adhesion. The spreading of polymer adhesives on adherend is one of the essential considerations for the interfacial adhesion of polymer adhesives, which is strongly related to their wetting behaviors. While relationships between polymer microstructure and adhesion have been investigated in previous studies, it remains challenging to unveil the effect of polymer microstructure on wettability. To address this issue, here we utilize coarse-grained molecular dynamics (CGMD) simulations to systematically elucidate how the wettability of a polymer adhesive droplet on a surface depends on bending stiffness. The wetting dynamics and the contact angle are studied to show the evolution of morphology of droplets during the wetting process. The results indicate the wettability is weakened by the increase of bending stiffness of polymer chain. Detailed thermodynamic property analysis is further conducted, revealing that the adhesion between the polymer droplet and substrate deteriorates due to the decline of wettability. Interestingly, we observe such deterioration becomes more significant by both increasing the temperature and decreasing the bending stiffness. Our study sheds light on the dependence of chain bending stiffness and temperature on the wetting behavior of polymer adhesive droplets, and offers insights, which, upon experimental validation can then be used for the design of adhesives or hydrogels.
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Affiliation(s)
- Wenhao Sha
- School of Naval Architecture, Ocean and Civil Engineering (State Key Laboratory of Ocean Engineering), Shanghai Jiao Tong University, Shanghai, China
| | - Jimin Fu
- Nanotechnology Center, Institute of Textiles & Clothing, The Hong Kong Polytechnic University, Hong Kong, China
| | - Fenglin Guo
- School of Naval Architecture, Ocean and Civil Engineering (State Key Laboratory of Ocean Engineering), Shanghai Jiao Tong University, Shanghai, China
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23
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V BADHE R, ADKINE D, GODSE A. Development of Polylactic Acid and Bovine Serum Albumin-layered-coated Chitosan Microneedles Using Novel Bees Wax Mould. Turk J Pharm Sci 2021; 18:367-375. [PMID: 34157828 PMCID: PMC8231333 DOI: 10.4274/tjps.galenos.2020.47897] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 09/01/2020] [Indexed: 02/03/2023]
Abstract
Objectives This work illustrates a novel method of fabrication of polymeric microneedle (MN) construct using bees wax as mould and development of coated polymeric MNs for drug delivery. Materials and Methods A novel method of MN fabrication using bees wax as mould was established. The porous chitosan MN arrays were fabricated and coated with polylactic acid (PLA). The optimized MN arrays were coated with bovine serum albumin (BSA). The MNs were subjected to physiochemical and tensile strength characterization, followed by drug release study. The skin penetration and irritation study were performed in vivo in Wistar Albino rats. Results The constructed MN arrays contain MNs with 0.9 mm length, 600 μm width at the base, 30-60 μm diameter at the tip, and 1.5 mm distance between 2 needles. These MNs patch was having good mechanical strength (0.72 N/needle) and tensile strength 15.23 Mpa. The MN array patch had 6.26% swelling index and 98.5% drug release was observed on the 50th hr. Good penetration and no skin irritation was observed for optimized MN batch. Conclusion Polymeric MN arrays were successfully developed using bees wax mould and were successfully coated with PLA to deliver the BSA through skin epidermis layer.
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Affiliation(s)
- Ravindra V BADHE
- Department of Pharmaceutical Chemistry, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Pimpri, Pune, Maharashtra, India
| | - Deepak ADKINE
- Department of Pharmaceutical Chemistry, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Pimpri, Pune, Maharashtra, India
| | - Anagha GODSE
- Department of Pharmaceutical Chemistry, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Pimpri, Pune, Maharashtra, India
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24
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Li Y, Yang J, Zheng Y, Ye R, Liu B, Huang Y, Zhou W, Jiang L. Iontophoresis-driven porous microneedle array patch for active transdermal drug delivery. Acta Biomater 2021; 121:349-358. [PMID: 33340733 DOI: 10.1016/j.actbio.2020.12.023] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 12/02/2020] [Accepted: 12/10/2020] [Indexed: 02/09/2023]
Abstract
A transdermal patch that combines microneedle array (MA) with iontophoresis can achieve synergistic and remarkable enhancement of drug delivery with precise electronic control. However, the development of an MA patch combined with iontophoresis that can enable in situ treatment, easy self-administration, and controllable delivery of liquid macromolecular drugs is still a challenge. Here, we presented an iontophoresis-driven porous MA patch (IDPMAP) for in situ, patient-friendly, and active delivery of charged macromolecular drugs. IDPMAP integrates porous MA with iontophoresis into a single transdermal patch, thus realizing the one-step drug administration strategy of "Penetration, Diffusion, and Iontophoresis." Moreover, a matching portable iontophoresis-driven device was developed for drug self-administration of IDPMAP. In vitro and in vivo studies showed that IDPMAP had approximately 99% skin penetration rate, negligible cytotoxicity, and good biocompatibility without skin irritation and hypersensitivity. In vivo transdermal delivery of insulin in type 1 diabetic rats demonstrated that IDPMAP could effectively deliver insulin nanovesicles and produce a robust hypoglycemic effect on the rats (maintain normal blood glucose for approximately 5.4 h), with more advanced controllability and efficiency than that achieved by pristine MA or iontophoresis. IDPMAP and its portable iontophoresis-driven device are user-friendly and thus show a promising potential for drug self-administration at home.
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25
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Transdermal electroosmotic flow generated by a porous microneedle array patch. Nat Commun 2021; 12:658. [PMID: 33510169 PMCID: PMC7843990 DOI: 10.1038/s41467-021-20948-4] [Citation(s) in RCA: 103] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 12/22/2020] [Indexed: 01/22/2023] Open
Abstract
A microneedle array is an attractive option for a minimally invasive means to break through the skin barrier for efficient transdermal drug delivery. Here, we report the applications of solid polymer-based ion-conductive porous microneedles (PMN) containing interconnected micropores for improving iontophoresis, which is a technique of enhancing transdermal molecular transport by a direct current through the skin. The PMN modified with a charged hydrogel brings three innovative advantages in iontophoresis at once: (1) lowering the transdermal resistance by low-invasive puncture of the highly resistive stratum corneum, (2) transporting of larger molecules through the interconnected micropores, and (3) generating electroosmotic flow (EOF). In particular, the PMN-generated EOF greatly enhances the transdermal molecular penetration or extraction, similarly to the flow induced by external pressure. The enhanced efficiencies of the EOF-assisted delivery of a model drug (dextran) and of the extraction of glucose are demonstrated using a pig skin sample. Furthermore, the powering of the PMN-based transdermal EOF system by a built-in enzymatic biobattery (fructose / O2 battery) is also demonstrated as a possible totally organic iontophoresis patch.
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26
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Pahal S, Badnikar K, Ghate V, Bhutani U, Nayak MM, Subramanyam DN, Vemula PK. Microneedles for Extended Transdermal Therapeutics: A Route to Advanced Healthcare. Eur J Pharm Biopharm 2021; 159:151-169. [PMID: 33388372 DOI: 10.1016/j.ejpb.2020.12.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 12/10/2020] [Accepted: 12/22/2020] [Indexed: 11/17/2022]
Abstract
Sustained release of drugs over a pre-determined period is required to maintain an effective therapeutic dose for variety of drug delivery applications. Transdermal devices such as polymeric microneedle patches and other microneedle-based devices have been utilized for sustained release of their payload. Swift clearing of drugs can be prevented either by designing a slow-degrading polymeric matrix or by providing physiochemical triggers to different microneedle-based devices for on-demand release. These long-acting transdermal devices prevent the burst release of drugs. This review highlights the recent advances of microneedle-based devices for sustained release of vaccines, hormones, and antiretrovirals with their prospective safe clinical translation.
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Affiliation(s)
- Suman Pahal
- Institute for Stem Cell Science and Regenerative Medicine (inStem), Bangalore, Karnataka 560065, India.
| | - Kedar Badnikar
- Department of Electronics Systems Engineering, Indian Institute of Science, Bangalore, Karnataka 560012, India
| | - Vivek Ghate
- Department of Electronics Systems Engineering, Indian Institute of Science, Bangalore, Karnataka 560012, India
| | - Utkarsh Bhutani
- Institute for Stem Cell Science and Regenerative Medicine (inStem), Bangalore, Karnataka 560065, India
| | - Mangalore Manjunatha Nayak
- Centre for Nano Science and Engineering, Indian Institute of Science, Bangalore, Karnataka 560012, India
| | | | - Praveen Kumar Vemula
- Institute for Stem Cell Science and Regenerative Medicine (inStem), Bangalore, Karnataka 560065, India.
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27
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Nagarkar R, Singh M, Nguyen HX, Jonnalagadda S. A review of recent advances in microneedle technology for transdermal drug delivery. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101923] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Stewart S, Domínguez-Robles J, McIlorum VJ, Gonzalez Z, Utomo E, Mancuso E, Lamprou DA, Donnelly RF, Larrañeta E. Poly(caprolactone)-Based Coatings on 3D-Printed Biodegradable Implants: A Novel Strategy to Prolong Delivery of Hydrophilic Drugs. Mol Pharm 2020; 17:3487-3500. [PMID: 32672976 PMCID: PMC7482401 DOI: 10.1021/acs.molpharmaceut.0c00515] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/14/2020] [Accepted: 07/16/2020] [Indexed: 01/18/2023]
Abstract
Implantable devices are versatile and promising drug delivery systems, and their advantages are well established. Of these advantages, long-acting drug delivery is perhaps the most valuable. Hydrophilic compounds are particularly difficult to deliver for prolonged times. This work investigates the use of poly(caprolactone) (PCL)-based implant coatings as a novel strategy to prolong the delivery of hydrophilic compounds from implantable devices that have been prepared by additive manufacturing (AM). Hollow implants were prepared from poly(lactic acid) (PLA) and poly(vinyl alcohol) (PVA) using fused filament fabrication (FFF) AM and subsequently coated in a PCL-based coating. Coatings were prepared by solution-casting mixtures of differing molecular weights of PCL and poly(ethylene glycol) (PEG). Increasing the proportion of low-molecular-weight PCL up to 60% in the formulations decreased the crystallinity by over 20%, melting temperature by over 4 °C, and water contact angle by over 40°, resulting in an increased degradation rate when compared to pure high-molecular-weight PCL. Addition of 30% PEG to the formulation increased the porosity of the formulation by over 50% when compared to an equivalent PCL-only formulation. These implants demonstrated in vitro release rates for hydrophilic model compounds (methylene blue and ibuprofen sodium) ranging from 0.01 to 34.09 mg/day, depending on the drug used. The versatility of the devices produced in this work and the range of release rates achievable show great potential. Implants could be specifically developed in order to match the specific release rate required for a number of drugs for a wide range of conditions.
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Affiliation(s)
- Sarah
A. Stewart
- School
of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K.
| | - Juan Domínguez-Robles
- School
of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K.
| | - Victoria J. McIlorum
- School
of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K.
| | - Zoilo Gonzalez
- Instituto
De Cerámica y Vidrio, CSIC, c/Kelsen, 5, 28049 Madrid, Spain
| | - Emilia Utomo
- School
of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K.
| | - Elena Mancuso
- Nanotechnology
and Integrated Bio-Engineering Centre (NIBEC), Ulster University, Jordanstown BT37 0QB, U.K.
| | - Dimitrios A. Lamprou
- School
of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K.
| | - Ryan F. Donnelly
- School
of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K.
| | - Eneko Larrañeta
- School
of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K.
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29
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Tort S, Mutlu Agardan NB, Han D, Steckl AJ. In vitro and in vivo evaluation of microneedles coated with electrosprayed micro/nanoparticles for medical skin treatments. J Microencapsul 2020; 37:517-527. [DOI: 10.1080/02652048.2020.1809725] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Serdar Tort
- Nanoelectronics Laboratory, Department of Electrical Engineering and Computer Science, University of Cincinnati, Cincinnati, OH, USA
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | | | - Daewoo Han
- Nanoelectronics Laboratory, Department of Electrical Engineering and Computer Science, University of Cincinnati, Cincinnati, OH, USA
| | - Andrew J. Steckl
- Nanoelectronics Laboratory, Department of Electrical Engineering and Computer Science, University of Cincinnati, Cincinnati, OH, USA
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Ullah A, Choi HJ, Jang M, An S, Kim GM. Smart Microneedles with Porous Polymer Layer for Glucose-Responsive Insulin Delivery. Pharmaceutics 2020; 12:E606. [PMID: 32629825 PMCID: PMC7407179 DOI: 10.3390/pharmaceutics12070606] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/11/2020] [Accepted: 06/26/2020] [Indexed: 12/25/2022] Open
Abstract
A closed-loop system imitating the function of pancreatic cells, connected to microneedles (MNs) that automatically "release" insulin in response to the blood glucose (BG) levels would be highly satisfactory for improving the quality of life and health for diabetes patients. This paper describes an easy, fast and simple technique of coating a porous polymer layer on stainless steel (SS) MNs that release insulin in a glucose-responsive fashion. It was fabricated by sealing insulin, sodium bicarbonate (a pH-sensitive element [NaHCOз]) and glucose oxidase (glucose-specific enzymes [GOx]) into the pores of a porous polymer coating. Glucose can passively diffuse into the pores and become oxidized to gluconic acid by GOx, thereby causing a decrease in local pH. The subsequent reaction of protons with NaHCOз forms carbon dioxide (CO2) which creates pressure inside the pores, thereby rupturing the thin polymer film and releasing the encapsulated insulin. Field emission scanning electron microscopy (FE-SEM) images displayed that upon the exposure of MNs to glucose-free phosphate buffer saline (PBS) with pH 7.4, the pores of the porous MNs were closed, while in MNs exposed to a hyperglycemic glucose level, the pores were opened and the thin film burst. These MNs demonstrated both in vitro (in porcine skin and PBS) and in vivo (in diabetic rats) glucose-mediated insulin release under hyperglycemic conditions with rapid responsiveness. This study validated that the release of insulin from porous MNs was effectively correlated with glucose concentration.
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Affiliation(s)
- Asad Ullah
- School of Mechanical Engineering, Kyungpook National University, Daegu 41566, Korea; (A.U.); (H.J.C.)
| | - Hye Jin Choi
- School of Mechanical Engineering, Kyungpook National University, Daegu 41566, Korea; (A.U.); (H.J.C.)
| | - Mijin Jang
- Daegu Gyeongbuk Medical Innovation Foundation, Laboratory Animal Center, Daegu 41061, Korea; (M.J.); (S.A.)
| | - Sanghyun An
- Daegu Gyeongbuk Medical Innovation Foundation, Laboratory Animal Center, Daegu 41061, Korea; (M.J.); (S.A.)
| | - Gyu Man Kim
- School of Mechanical Engineering, Kyungpook National University, Daegu 41566, Korea; (A.U.); (H.J.C.)
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31
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Affiliation(s)
- Aung Than
- School of Chemical and Biomedical Engineering, Innovative Centre for Flexible DevicesNanyang Technological University Singapore
| | - Ping Zan
- School of Chemical and Biomedical Engineering, Innovative Centre for Flexible DevicesNanyang Technological University Singapore
| | - Peng Chen
- School of Chemical and Biomedical Engineering, Innovative Centre for Flexible DevicesNanyang Technological University Singapore
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Hao Feng Y, Ling Liu J, Zhu DD, Hao YY, Dong Guo X. Multiscale simulations of drug distributions in polymer dissolvable microneedles. Colloids Surf B Biointerfaces 2020; 189:110844. [DOI: 10.1016/j.colsurfb.2020.110844] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 01/31/2020] [Accepted: 02/03/2020] [Indexed: 12/26/2022]
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Influence of a Biocompatible Hydrophilic Needle Surface Coating on a Puncture Biopsy Process for Biomedical Applications. COATINGS 2020. [DOI: 10.3390/coatings10020178] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A puncture biopsy is a widely used, minimally invasive surgery process. During the needle insertion process, the needle body is always in direct contact with a biological soft tissue. Tissue adhesion and different degrees of tissue damage occur frequently. Optimization of the needle surface, and especially the lubrication of the needle surface, can deal with these problems efficiently. Therefore, in this paper, a biocompatible hydrophilic coating was applied onto the surface of a needle to improve the surface quality of the needle surface. Further, a simplified finite element model of insertion was established, and extracorporeal insertion experiments were used to verify the accuracy of the model. Then, by analyzing a simulation model of a coated needle and a conventional needle, the influence of the application of the coated needle on the insertion process was obtained. It can be seen from the results that the coating application relieved the force on the needle and the soft tissue during the insertion process and could significantly reduce friction during the insertion process. At the same time, the deformation of biological soft tissue was reduced, and the adhesion situation between the needle and tissue improved, which optimized the puncture needle.
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Zhao X, Zhang S, Yang G, Zhou Z, Gao Y. Exploring Trehalose on the Release of Levonorgestrel from Implantable PLGA Microneedles. Polymers (Basel) 2020; 12:E59. [PMID: 31906331 PMCID: PMC7023614 DOI: 10.3390/polym12010059] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 12/13/2019] [Accepted: 12/17/2019] [Indexed: 12/16/2022] Open
Abstract
Hydrophobic drugs wrapped in poly (lactic-co-glycolic acid) (PLGA)-based microneedles (MNs) require a long time to release completely. To obtain the desired duration, it is still necessary to modulate the release of hydrophobic drugs from MNs, while the PLGA composition is unchangeable. In this work, implantable PLGA microneedles (IPMNs) composed of PLGA arrowheads encapsulating levonorgestrel (LNG) and a water-soluble supporting array were designed. We explored trehalose used as a porogen on the release of hydrophobic LNG from PLGA-based MNs. Varying the trehalose content in PLGA arrowheads could induce different rates of drug release. The highest cumulative release of LNG was 76.2 ± 3.9% for IPMNs with 33.3% trehalose during 21 days in vitro, while the cumulative release of LNG was 60.4 ± 3.5% for IPMNs without trehalose. Pharmacokinetic results in rats showed that plasma levels of LNG were sustained for 13 days for IPMNs with 33.3% trehalose and 16 days for IPMNs without trehalose. Furthermore, the PLGA arrowheads with trehalose degraded more rapidly than those without trehalose over 21 days in rats. Consequently, using trehalose as a porogen was a feasible approach to modulate the release of a hydrophobic drug from PLGA-based MNs.
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Affiliation(s)
- Xiaoyu Zhao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (X.Z.); (S.Z.); (G.Y.); (Z.Z.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Suohui Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (X.Z.); (S.Z.); (G.Y.); (Z.Z.)
| | - Guozhong Yang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (X.Z.); (S.Z.); (G.Y.); (Z.Z.)
| | - Zequan Zhou
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (X.Z.); (S.Z.); (G.Y.); (Z.Z.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunhua Gao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (X.Z.); (S.Z.); (G.Y.); (Z.Z.)
- University of Chinese Academy of Sciences, Beijing 100049, China
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Pires LR, Vinayakumar KB, Turos M, Miguel V, Gaspar J. A Perspective on Microneedle-Based Drug Delivery and Diagnostics in Paediatrics. J Pers Med 2019; 9:jpm9040049. [PMID: 31731656 PMCID: PMC6963643 DOI: 10.3390/jpm9040049] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/04/2019] [Accepted: 11/12/2019] [Indexed: 12/24/2022] Open
Abstract
Microneedles (MNs) have been extensively explored in the literature as a means to deliver drugs in the skin, surpassing the stratum corneum permeability barrier. MNs are potentially easy to produce and may allow the self-administration of drugs without causing pain or bleeding. More recently, MNs have been investigated to collect/assess the interstitial fluid in order to monitor or detect specific biomarkers. The integration of these two concepts in closed-loop devices holds the promise of automated and minimally invasive disease detection/monitoring and therapy. These assure low invasiveness and, importantly, open a window of opportunity for the application of population-specific and personalised therapies.
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Affiliation(s)
- Liliana R Pires
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal; (L.R.P.); (J.G.)
| | - KB Vinayakumar
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal; (L.R.P.); (J.G.)
- Correspondence: or
| | - Maria Turos
- University of Oviedo, 33006 Asturias, Spain;
| | - Verónica Miguel
- Department of Cell Biology and Immunology, Centro de Biología Molecular “Severo Ochoa”, 28049 Madrid, Spain;
| | - João Gaspar
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal; (L.R.P.); (J.G.)
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36
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Ullah A, Khan H, Choi HJ, Kim GM. Smart Microneedles with Porous Polymer Coatings for pH-Responsive Drug Delivery. Polymers (Basel) 2019; 11:E1834. [PMID: 31703443 PMCID: PMC6918349 DOI: 10.3390/polym11111834] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/04/2019] [Accepted: 11/06/2019] [Indexed: 12/30/2022] Open
Abstract
: This work demonstrates a simple approach for coating a porous polymer layer on stainless-steel (SS) microneedles characterized by a pH-responsive formulation for self-regulated drug delivery. For many drug-delivery applications, the release of therapeutic agents in an acidic microenvironment is desirable. Acid-sensitive polymers and hydrogels were extensively explored, but easily prepared polymeric microcarriers that combine acid sensitivity and biodegradability are rare. Here, we describe a simple and robust method of coating a porous polymer layer on SS microneedles (MNs) that release a model drug (lidocaine) in a pH-responsive fashion. It was constructed by packing the model drug and a pH-sensitive component (sodium bicarbonate) into the pores of the polymer layer. When this acid-sensitive formulation was exposed to the acidic microenvironment, the consequent reaction of protons (H+) with sodium bicarbonate (NaHCO3) yielded CO2. This effect generated pressure inside the pores of the coating and ruptured the thin polymer membrane, thereby releasing the encapsulated drug. Scanning electron micrographs showed that the pH-sensitive porous polymer-coated MNs exposed to phosphate-buffered saline (PBS) at pH 7.4 were characterized by closed pores. However, MNs exposed to PBS at pH 5.5 consisted of open pores and the thin membrane burst. The in vitro studies demonstrated the pH sensitivity of the drug release from porous polymer-coated MNs. Negligible release was observed for MNs in receiving media at pH 7.4. In contrast, significant release occurred when the MNs were exposed to acidic conditions (pH 5.5). Additionally, comparable results were obtained for drug release in vitro in porcine skin and in PBS. This revealed that our developed pH-responsive porous polymer-coated MNs could potentially be used for the controlled release of drug formulations in an acidic environment. Moreover, the stimuli-responsive drug carriers will enable on-demand controlled release profiles that may enhance therapeutic effectiveness and reduce systemic toxicity.
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Affiliation(s)
| | | | | | - Gyu Man Kim
- School of Mechanical Engineering, Kyungpook National University, Daegu 41566, Korea; (A.U.); (H.K.); (H.J.C.)
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Yeung C, Chen S, King B, Lin H, King K, Akhtar F, Diaz G, Wang B, Zhu J, Sun W, Khademhosseini A, Emaminejad S. A 3D-printed microfluidic-enabled hollow microneedle architecture for transdermal drug delivery. BIOMICROFLUIDICS 2019; 13:064125. [PMID: 31832123 PMCID: PMC6906119 DOI: 10.1063/1.5127778] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 12/02/2019] [Indexed: 05/16/2023]
Abstract
Embedding microfluidic architectures with microneedles enables fluid management capabilities that present new degrees of freedom for transdermal drug delivery. To this end, fabrication schemes that can simultaneously create and integrate complex millimeter/centimeter-long microfluidic structures and micrometer-scale microneedle features are necessary. Accordingly, three-dimensional (3D) printing techniques are suitable candidates because they allow the rapid realization of customizable yet intricate microfluidic and microneedle features. However, previously reported 3D-printing approaches utilized costly instrumentation that lacked the desired versatility to print both features in a single step and the throughput to render components within distinct length-scales. Here, for the first time in literature, we devise a fabrication scheme to create hollow microneedles interfaced with microfluidic structures in a single step. Our method utilizes stereolithography 3D-printing and pushes its boundaries (achieving print resolutions below the full width half maximum laser spot size resolution) to create complex architectures with lower cost and higher print speed and throughput than previously reported methods. To demonstrate a potential application, a microfluidic-enabled microneedle architecture was printed to render hydrodynamic mixing and transdermal drug delivery within a single device. The presented architectures can be adopted in future biomedical devices to facilitate new modes of operations for transdermal drug delivery applications such as combinational therapy for preclinical testing of biologic treatments.
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Affiliation(s)
| | | | | | - Haisong Lin
- Interconnected & Integrated Bioelectronics Lab (I2BL), Department of Electrical and Computer Engineering, University of California, Los Angeles, California 90095, USA
| | - Kimber King
- Interconnected & Integrated Bioelectronics Lab (I2BL), Department of Electrical and Computer Engineering, University of California, Los Angeles, California 90095, USA
| | - Farooq Akhtar
- Interconnected & Integrated Bioelectronics Lab (I2BL), Department of Electrical and Computer Engineering, University of California, Los Angeles, California 90095, USA
| | - Gustavo Diaz
- Interconnected & Integrated Bioelectronics Lab (I2BL), Department of Electrical and Computer Engineering, University of California, Los Angeles, California 90095, USA
| | - Bo Wang
- Interconnected & Integrated Bioelectronics Lab (I2BL), Department of Electrical and Computer Engineering, University of California, Los Angeles, California 90095, USA
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38
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Moreira AF, Rodrigues CF, Jacinto TA, Miguel SP, Costa EC, Correia IJ. Microneedle-based delivery devices for cancer therapy: A review. Pharmacol Res 2019; 148:104438. [DOI: 10.1016/j.phrs.2019.104438] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 08/28/2019] [Accepted: 08/29/2019] [Indexed: 12/28/2022]
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39
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He X, Sun J, Zhuang J, Xu H, Liu Y, Wu D. Microneedle System for Transdermal Drug and Vaccine Delivery: Devices, Safety, and Prospects. Dose Response 2019; 17:1559325819878585. [PMID: 31662709 PMCID: PMC6794664 DOI: 10.1177/1559325819878585] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 08/30/2019] [Accepted: 09/04/2019] [Indexed: 12/18/2022] Open
Abstract
Microneedle (MN) delivery system has been greatly developed to deliver drugs into the skin painlessly, noninvasively, and safety. In the past several decades, various types of MNs have been developed by the newer producing techniques. Briefly, as for the morphologically, MNs can be classified into solid, coated, dissolved, and hollow MN, based on the transdermal drug delivery methods of "poke and patch," "coat and poke," "poke and release," and "poke and flow," respectively. Microneedles also have other characteristics based on the materials and structures. In addition, various manufacturing techniques have been well-developed based on the materials. In this review, the materials, structures, morphologies, and fabricating methods of MNs are summarized. A separate part of the review is used to illustrate the application of MNs to deliver vaccine, insulin, lidocaine, aspirin, and other drugs. Finally, the review ends up with a perspective on the challenges in research and development of MNs, envisioning the future development of MNs as the next generation of drug delivery system.
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Affiliation(s)
- Xiaoxiang He
- College of Mechanical and Electrical Engineering, Beijing University
of Chemical Technology, Beijing, China
| | - Jingyao Sun
- College of Mechanical and Electrical Engineering, Beijing University
of Chemical Technology, Beijing, China
| | - Jian Zhuang
- College of Mechanical and Electrical Engineering, Beijing University
of Chemical Technology, Beijing, China
| | - Hong Xu
- College of Mechanical and Electrical Engineering, Beijing University
of Chemical Technology, Beijing, China
| | - Ying Liu
- State Key Laboratory of Organic-Inorganic Composites, Beijing
University of Chemical Technology, Beijing, China
| | - Daming Wu
- College of Mechanical and Electrical Engineering, Beijing University
of Chemical Technology, Beijing, China
- State Key Laboratory of Organic-Inorganic Composites, Beijing
University of Chemical Technology, Beijing, China
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40
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Chang Y, Luo Y, Xu C, Zhao J. Polysilazane as a new foaming agent to prepare high-strength, low-density epoxy foam. ROYAL SOCIETY OPEN SCIENCE 2019; 6:182119. [PMID: 31218037 PMCID: PMC6549989 DOI: 10.1098/rsos.182119] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 04/05/2019] [Indexed: 06/09/2023]
Abstract
Polysilazane (PSN2) was used as chemical foaming agent to prepare epoxy foam for the first time. Using the new foaming agent, epoxy foams with high strength and low density were successfully prepared. The density of epoxy foam can be tuned from 0.321 to 0.151 g cm-3 by changing the content of PSN2 from 2.50 to 7.50 wt%, with the compressive strength varied from 7.39 to 1.25 MPa. The morphology, porosity, mechanical property, thermal conductivity and adhesive property of foams with different polysilazane content were investigated. Besides, the effect of polyamine curing agent and surfactant on foams was also investigated to optimize the as-prepared epoxy foam.
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Affiliation(s)
- Yucheng Chang
- School of Material Science and Engineering, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Yongming Luo
- Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Caihong Xu
- Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Jianling Zhao
- School of Material Science and Engineering, Hebei University of Technology, Tianjin 300130, People's Republic of China
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41
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Sampath Udeni Gunathilake TM, Ching YC, Chuah CH, Illias HA, Ching KY, Singh R, Nai-Shang L. Influence of a nonionic surfactant on curcumin delivery of nanocellulose reinforced chitosan hydrogel. Int J Biol Macromol 2018; 118:1055-1064. [DOI: 10.1016/j.ijbiomac.2018.06.147] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 06/08/2018] [Accepted: 06/27/2018] [Indexed: 12/17/2022]
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