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Zhou X, Liu H, Yu Z, Yu H, Meng D, Zhu L, Li H. Direct 3D printing of triple-responsive nanocomposite hydrogel microneedles for controllable drug delivery. J Colloid Interface Sci 2024; 670:1-11. [PMID: 38749378 DOI: 10.1016/j.jcis.2024.05.045] [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: 02/29/2024] [Revised: 04/27/2024] [Accepted: 05/07/2024] [Indexed: 06/03/2024]
Abstract
Hydrogel microneedle patches have emerged as promising platforms for painless, minimally invasive, safe, and portable transdermal drug administration. However, the conventional mold-based fabrication processes and inherent single-functionality of such microneedles present significant hurdles to broader implementation. Herein, we have developed a novel approach utilizing a precursor solution of robust nanocomposite hydrogels to formulate photo-printable inks suitable for the direct 3D printing of high-precision, triple-responsive hydrogel microneedle patches through digital light processing (DLP) technology. The ink formulation comprises four functionally diverse monomers including 2-(dimethylamino)ethyl methacrylate, N-isopropylacrylamide, acrylic acid, and acrylamide, which were crosslinked by aluminum hydroxide nanoparticles (AH NPs) acting as both reinforcing agents and crosslinking centers. This results in the formation of a nanocomposite hydrogel characterized by exceptional mechanical strength, an essential attribute for the 3D printing of hydrogel microneeedle patches. Furthermore, this innovative 3D printing strategy facilitates facile customization of microneedle geometry and patch dimensions. As a proof-of-concept, we employed the fabricated hydrogel microneedles for transdermal delivery of bovine serum albumin (BSA). Importantly, these hydrogel microneedles displayed no cytotoxic effects and exhibited triple sensitivity to pH, temperature and glucose levels, thereby enabling more precise on-demand drug delivery. This study provides a universal method for the rapid fabrication of hydrogel microneedles with smart responsiveness for transdermal drug delivery applications.
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Affiliation(s)
- Xinmeng Zhou
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, PR China
| | - Huan Liu
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, PR China
| | - Zilian Yu
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, PR China
| | - Hao Yu
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, PR China
| | - Decheng Meng
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, PR China
| | - Liran Zhu
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, PR China
| | - Huanjun Li
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, PR China.
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2
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Ertas YN, Ertas D, Erdem A, Segujja F, Dulchavsky S, Ashammakhi N. Diagnostic, Therapeutic, and Theranostic Multifunctional Microneedles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308479. [PMID: 38385813 DOI: 10.1002/smll.202308479] [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: 09/23/2023] [Revised: 01/04/2024] [Indexed: 02/23/2024]
Abstract
Microneedles (MNs) have maintained their popularity in therapeutic and diagnostic medical applications throughout the past decade. MNs are originally designed to gently puncture the stratum corneum layer of the skin and have lately evolved into intelligent devices with functions including bodily fluid extraction, biosensing, and drug administration. MNs offer limited invasiveness, ease of application, and minimal discomfort. Initially manufactured solely from metals, MNs are now available in polymer-based varieties. MNs can be used to create systems that deliver drugs and chemicals uniformly, collect bodily fluids, and are stimulus-sensitive. Although these advancements are favorable in terms of biocompatibility and production costs, they are insufficient for the therapeutic use of MNs. This is the first comprehensive review that discusses individual MN functions toward the evolution and development of smart and multifunctional MNs for a variety of novel and impactful future applications. The study examines fabrication techniques, application purposes, and experimental details of MN constructs that perform multiple functions concurrently, including sensing, drug-molecule release, sampling, and remote communication capabilities. It is highly likely that in the near future, MN-based smart devices will be a useful and important component of standard medical practice for different applications.
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Affiliation(s)
- Yavuz Nuri Ertas
- Department of Biomedical Engineering, Erciyes University, Kayseri, 38039, Türkiye
- ERNAM-Nanotechnology Research and Application Center, Erciyes University, Kayseri, 38039, Türkiye
- UNAM-National Nanotechnology Research Center, Bilkent University, Ankara, 06800, Türkiye
| | - Derya Ertas
- ERNAM-Nanotechnology Research and Application Center, Erciyes University, Kayseri, 38039, Türkiye
| | - Ahmet Erdem
- Department of Biomedical Engineering, Kocaeli University, Umuttepe Campus, Kocaeli, 41380, Türkiye
- Department of Chemistry, Kocaeli University, Umuttepe Campus, Kocaeli, 41380, Türkiye
| | - Farouk Segujja
- Department of Biomedical Engineering, Kocaeli University, Umuttepe Campus, Kocaeli, 41380, Türkiye
| | - Scott Dulchavsky
- Department of Surgery, Henry Ford Health, Detroit, MI, 48201, USA
| | - Nureddin Ashammakhi
- Institute for Quantitative Health Science and Engineering (IQ) and Department of Biomedical Engineering (BME), Colleges of Engineering and Human Medicine, Michigan State University, East Lansing, MI, 48824, USA
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3
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Wang Q, Liu Q, Zhong G, Xu T, Zhang X. Wearable Vertical Graphene-Based Microneedle Biosensor for Real-Time Ketogenic Diet Management. Anal Chem 2024; 96:8713-8720. [PMID: 38745346 DOI: 10.1021/acs.analchem.4c00960] [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: 05/16/2024]
Abstract
Ketogenic diets have attracted substantial interest in the treatment of chronic diseases, but there are health risks with long-term regimes. Despite the advancements in diagnostic and therapeutic methods in modern medicine, there is a huge gap in personalized health management of this dietary strategy. Hence, we present a wearable microneedle biosensor for real-time ketone and glucose monitoring. The microneedle array possesses excellent mechanical properties, allowing for consistent sampling of interstitial biomarkers while reducing the pain associated with skin puncture. Vertical graphene with outstanding electrical conductivity provides the resulting sensor with a high sensitivity of 234.18 μA mM-1 cm-2 and a low limit detection of 1.21 μM. When this fully integrated biosensor was used in human volunteers, it displayed an attractive analytical capability for tracking the dynamic metabolite levels. Moreover, the results of the on-body evaluation established a significant correlation with commercial blood measurements. Overall, this cost-effective and efficient sensing platform can accelerate the application of a ketogenic diet in personal nutrition and wellness management.
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Affiliation(s)
- Qiyu Wang
- School of Biomedical Engineering, Institute for Advanced Study, Shenzhen University Medical School, Shenzhen University, Shenzhen 518060, P. R. China
| | - Qingzhou Liu
- Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen 518060, China
| | - Geng Zhong
- School of Biomedical Engineering, Institute for Advanced Study, Shenzhen University Medical School, Shenzhen University, Shenzhen 518060, P. R. China
| | - Tailin Xu
- School of Biomedical Engineering, Institute for Advanced Study, Shenzhen University Medical School, Shenzhen University, Shenzhen 518060, P. R. China
| | - Xueji Zhang
- School of Biomedical Engineering, Institute for Advanced Study, Shenzhen University Medical School, Shenzhen University, Shenzhen 518060, P. R. China
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4
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Xing M, Yang G, Liu H, Zhou Z, Zhang S, Gao Y. Industrializable approach for preparing hydrogel microneedles and their application in melanoma treatment. Int J Pharm 2024; 653:123883. [PMID: 38341048 DOI: 10.1016/j.ijpharm.2024.123883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/02/2024] [Accepted: 02/03/2024] [Indexed: 02/12/2024]
Abstract
Microneedles (MNs) technology has been studied in transdermal drug delivery for more than 20 years with hundreds of clinical trials conducted. However, there are currently no commercially available MNs in medicine due to challenges in materials safety, cost-effective fabrication, and large-scale manufacturing. Herein, an approach for rapid and green fabrication of hydrogel microneedles (HMNs) based on infrared irradiation process was proposed for the first time. The optimized formulation consisted of polyvinyl alcohol (PVA) and polyvinyl pyrrolidone (PVP), which acted as cross-linked materials and pore-forming agents, respectively. The manufacturing method involved placing MNs patches under infrared irradiation at 70 °C for 2 min and annealing to obtain HMNs with excellent swelling behavior, mechanical strength, and biocompatibility. When model drugs azelaic acid (AZA) and matrine (MAT) were loaded into HMNs systems, the chemical stability of MAT was significantly improved. Ex vivo transdermal delivery experiments indicated that HMNs could achieve synchronous release of AZA and MAT, and the 24-hour percutaneous permeability rates of both drugs were 73.09 ± 0.48 % and 71.56 ± 1.23 %, respectively. In-vivo pharmacokinetic studies, HMNs administration presented dose-dependent stable blood drug concentrations for both drugs. Additionally, prominent anti-tumor efficacy and biosecurity were observed in the drug-loaded HMNs group in the pharmacodynamic evaluation. In summary, the efficient, convenient, and low-cost fabrication method based on infrared irradiation offers the possibility of mass production of drug-loaded HMNs, showing potential for industrial manufacturing development.
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Affiliation(s)
- Mengzhen Xing
- Key Laboratory of New Material Research Institute, Department of Pharmaceutical Research Institute, Shandong University of Traditional Chinese Medicine, Jinan 250355, China; Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry of Chinese Academy of Sciences, Beijing 100190, China.
| | - Guozhong Yang
- Beijing CAS Microneedle Technology Ltd, Beijing 102609, China.
| | - Han Liu
- Beijing CAS Microneedle Technology Ltd, Beijing 102609, China.
| | - Zequan Zhou
- Beijing CAS Microneedle Technology Ltd, Beijing 102609, China.
| | - Suohui Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry of Chinese Academy of Sciences, Beijing 100190, China; Beijing CAS Microneedle Technology Ltd, Beijing 102609, China.
| | - Yunhua Gao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry of Chinese Academy of Sciences, Beijing 100190, China; Beijing CAS Microneedle Technology Ltd, Beijing 102609, China; Qingdao Academy of Chinese Medical Sciences, Shandong University of Traditional Chinese Medicine, 266112 Qingdao, China.
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5
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Martínez-Navarrete M, Guillot AJ, Lobita MC, Recio MC, Giner R, Aparicio-Blanco J, Montesinos MC, Santos HA, Melero A. Cyclosporin A-loaded dissolving microneedles for dermatitis therapy: Development, characterisation and efficacy in a delayed-type hypersensitivity in vivo model. Drug Deliv Transl Res 2024:10.1007/s13346-024-01542-9. [PMID: 38472726 DOI: 10.1007/s13346-024-01542-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/07/2024] [Indexed: 03/14/2024]
Abstract
Several drugs can be used for treating inflammatory skin pathologies like dermatitis and psoriasis. However, for the management of chronic and long-term cases, topical administration is preferred over oral delivery since it prevents certain issues due to systemic side effects from occurring. Cyclosporin A (CsA) has been used for this purpose; however, its high molecular weight (1202 Da) restricts the diffusion through the skin structure. Here, we developed a nano-in-micro device combining lipid vesicles (LVs) and dissolving microneedle array patches (DMAPs) for targeted skin delivery. CsA-LVs allowed the effective incorporation of CsA in the hydrophilic DMAP matrix despite the hydrophobicity of the drug. Polymeric matrix composed of poly (vinyl alcohol) (5% w/v), poly (vinyl pyrrolidine) (15% w/v) and CsA-LV dispersion (10% v/v) led to the formation of CsA-LVs@DMAPs with adequate mechanical properties to penetrate the stratum corneum barrier. The safety and biocompatibility were ensured in an in vitro viability test using HaCaT keratinocytes and L929 fibroblast cell lines. Ex vivo permeability studies in a Franz-diffusion cell setup showed effective drug retention in the skin structure. Finally, CsA-LVs@DMAPs were challenged in an in vivo murine model of delayed-type hypersensitivity to corroborate their potential to ameliorate skin inflammatory conditions. Different findings like photon emission reduction in bioluminescence study, normalisation of histological damage and decrease of inflammatory cytokines point out the effectivity of CsA-LVs@DMAPs to treat these conditions. Overall, our study demonstrates that CsA-LVs@DMAPs can downregulate the skin inflammatory environment which paves the way for their clinical translation and their use as an alternative to corticosteroid-based therapies.
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Affiliation(s)
- Miquel Martínez-Navarrete
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, University of Valencia, Ave. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
| | - Antonio José Guillot
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, University of Valencia, Ave. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain.
- Department of Biomaterials and Biomedical Technology, University Medical Center Groningen, University of Groningen, Ant. Deusinglaan 1, 9713 AV, Groningen, The Netherlands.
| | - Maria C Lobita
- Department of Biomaterials and Biomedical Technology, University Medical Center Groningen, University of Groningen, Ant. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - María Carmen Recio
- Department of Pharmacology, University of Valencia, Ave. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
| | - Rosa Giner
- Department of Pharmacology, University of Valencia, Ave. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
| | - Juan Aparicio-Blanco
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040, Madrid, Spain
| | - María Carmen Montesinos
- Department of Pharmacology, University of Valencia, Ave. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
- Interuniversity Research Institute for Molecular Recognition and Technological Development (IDM), University of Valencia, Polytechnic University of Valencia, Valencia, Spain
| | - Hélder A Santos
- Department of Biomaterials and Biomedical Technology, University Medical Center Groningen, University of Groningen, Ant. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014, Helsinki, Finland
| | - Ana Melero
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, University of Valencia, Ave. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
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Lee DH, Lim S, Kwak SS, Kim J. Advancements in Skin-Mediated Drug Delivery: Mechanisms, Techniques, and Applications. Adv Healthc Mater 2024; 13:e2302375. [PMID: 38009520 DOI: 10.1002/adhm.202302375] [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: 07/25/2023] [Revised: 10/11/2023] [Indexed: 11/29/2023]
Abstract
Skin-mediated drug delivery methods currently are receiving significant attention as a promising approach for the enhanced delivery of drugs through the skin. Skin-mediated drug delivery offers the potential to overcome the limitations of traditional drug delivery methods, including oral administration and intravenous injection. The challenges associated with drug permeation through layers of skin, which act as a major barrier, are explored, and strategies to overcome these limitations are discussed in detail. This review categorizes skin-mediated drug delivery methods based on the means of increasing drug permeation, and it provides a comprehensive overview of the mechanisms and techniques associated with these methods. In addition, recent advancements in the application of skin-mediated drug delivery are presented. The review also outlines the limitations of ongoing research and suggests future perspectives of studies regarding the skin-mediated delivery of drugs.
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Affiliation(s)
- Dong Ha Lee
- Center for Bionics of Biomedical Research Division, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Sunyoung Lim
- Center for Bionics of Biomedical Research Division, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- School of Biomedical Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Sung Soo Kwak
- Center for Bionics of Biomedical Research Division, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Joohee Kim
- Center for Bionics of Biomedical Research Division, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
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7
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Gwak H, Cho S, Song YJ, Park JH, Seo S. A study on the fabrication of metal microneedle array electrodes for ECG detection based on low melting point Bi-In-Sn alloys. Sci Rep 2023; 13:22931. [PMID: 38129504 PMCID: PMC10739879 DOI: 10.1038/s41598-023-50472-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 12/20/2023] [Indexed: 12/23/2023] Open
Abstract
This study describes the fabrication and characteristics of microneedle array electrodes (MAEs) using Bismuth-Indium-Tin (Bi-In-Sn) alloys. The MAEs consist of 57 pyramid-shaped needles measuring 340 μm wide and 800 μm high. The fabrication process involved micromolding the alloys in a vacuum environment. Physical tests demonstrated that Bi-In-Sn MAEs have good mechanical strength, indicating their suitability for successful skin penetration. The electrode-skin interface impedance test confirmed that Bi-In-Sn MAEs successfully penetrated the skin. Impedance measurements revealed the importance of insulating the microneedle electrodes for optimal electrical performance, and a UV-curable Polyurethane Acrylate coating was applied to enhance insulation. Electrocardiogram measurements using the Bi-In-Sn MAEs demonstrated performance comparable to that of traditional Ag/AgCl electrodes, which shows promise for accurate data collection. Overall, the study demonstrates successful, minimally-invasive skin insertion, improved electrical insulation, and potential applications of Bi-In-Sn microneedle array. These findings contribute to advancements in microneedle technology for biomedical applications.
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Affiliation(s)
- Hyunjong Gwak
- Department of BioNano Technology, Gachon University, Seongnam-Si, Gyeonggi-Do, 13120, Republic of Korea
| | - Sungbo Cho
- Department of Electronic Engineering, Gachon University, Seongnam-Si, Gyeonggi-Do, 13120, Republic of Korea
| | - Yoon-Jae Song
- Department of Life Science, Gachon University, Seongnam-Si, Gyeonggi-Do, 13120, Republic of Korea
| | - Jung-Hwan Park
- Department of BioNano Technology, Gachon University, Seongnam-Si, Gyeonggi-Do, 13120, Republic of Korea.
| | - Soonmin Seo
- Department of BioNano Technology, Gachon University, Seongnam-Si, Gyeonggi-Do, 13120, Republic of Korea.
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Kim J, Moon JW, Kim GR, Kim W, Hu HJ, Jo WJ, Baek SK, Sung GH, Park JH, Park JH. Safety tests and clinical research on buccal and nasal microneedle swabs for genomic analysis. Front Bioeng Biotechnol 2023; 11:1296832. [PMID: 38116201 PMCID: PMC10729317 DOI: 10.3389/fbioe.2023.1296832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 11/17/2023] [Indexed: 12/21/2023] Open
Abstract
Conventional swabs have been used as a non-invasive method to obtain samples for DNA analysis from the buccal and the nasal mucosa. However, swabs may not always collect pure enough genetic material. In this study, buccal and nasal microneedle swab is developed to improve the accuracy and reliability of genomic analysis. A cytotoxicity test, a skin sensitivity test, and a skin irritation test are conducted with microneedle swabs. Polymer microneedle swabs meet the safety requirements for clinical research and commercial use. When buccal and nasal microneedle swabs are used, the amount of genetic material obtained is greater than that from commercially available swabs, and DNA purity is also high. The comparatively short microneedle swab (250 μm long) cause almost no pain to all 25 participants. All participants also report that the microneedle swabs are very easy to use. When genotypes are compared at five SNP loci from blood of a participant and from that person's buccal or nasal microneedle swab, the buccal and nasal microneedle swabs show 100% concordance for all five SNP genotypes. Microneedle swabs can be effectively used for genomic analysis and prevention through genomic analysis, so the utilization of microneedle swabs is expected to be high.
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Affiliation(s)
- JeongHyeon Kim
- Department of Bionano Technology and Gachon BioNano Research Institute, Gachon University, Seongnam, Republic of Korea
| | | | | | - Wonsub Kim
- Endomics Inc, Seongnam, Republic of Korea
| | - Hae-Jin Hu
- Endomics Inc, Seongnam, Republic of Korea
| | - Won-Jun Jo
- QuadMedicine R&D Centre, QuadMedicine Co. Ltd., Seongnam, Republic of Korea
| | - Seung-Ki Baek
- QuadMedicine R&D Centre, QuadMedicine Co. Ltd., Seongnam, Republic of Korea
| | - Gil-Hwan Sung
- QuadMedicine R&D Centre, QuadMedicine Co. Ltd., Seongnam, Republic of Korea
| | - Jung Ho Park
- Department of Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jung-Hwan Park
- Department of Bionano Technology and Gachon BioNano Research Institute, Gachon University, Seongnam, Republic of Korea
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Kim JC, Choi JA, Park H, Yang E, Noh S, Kim JS, Kim MJ, Song M, Park JH. Pharmaceutical and Immunological Evaluation of Cholera Toxin A1 Subunit as an Adjuvant of Hepatitis B Vaccine Microneedles. Pharm Res 2023; 40:3059-3071. [PMID: 37914841 DOI: 10.1007/s11095-023-03623-9] [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: 06/28/2023] [Accepted: 10/11/2023] [Indexed: 11/03/2023]
Abstract
PURPOSE For successful delivery of a solid vaccine formulation into the skin using microneedles, the solubility of an adjuvant should be considered because the decrease in the dissolution rate by the addition of adjuvant decreases the delivery efficiency of the vaccine. METHODS In this study, cholera toxin A subunit 1 (CTA1) was examined as an adjuvant to Hepatitis B vaccine (HBV) microneedles because of its good water solubility, improved safety, and positive effect as shown in intramuscular administration of a liquid vaccine. RESULTS All solid formulations with CTA 1 dissolved in in vivo mouse skin within 30 min, and they were successfully delivered into the skin. In experiments with mice, the addition of CTA1 led to improved IgG immune response compared to the use of an aluminum hydroxide-based formulation and intramuscular administration of HBV. In addition, CTA1 induced CD8 + T cell response as much as in which the aluminum hydroxide-based formulation induced. CONCLUSIONS CTA1 is an adjuvant that satisfies both the delivery efficiency and the immunological characteristics required for vaccine microneedles. CTA1 will be used as a potential adjuvant through vaccine microneedles.
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Affiliation(s)
- Jong-Chan Kim
- Department of BioNano Technology, Gachon BioNano Research Institute, Gachon University, Seongnam, South Korea
| | - Jung-Ah Choi
- Science Unit, International Vaccine Institute, Seoul, South Korea
| | - Hayan Park
- Science Unit, International Vaccine Institute, Seoul, South Korea
| | - Eunji Yang
- Science Unit, International Vaccine Institute, Seoul, South Korea
| | - Shinyoung Noh
- Science Unit, International Vaccine Institute, Seoul, South Korea
| | - Ji-Seok Kim
- Department of BioNano Technology, Gachon BioNano Research Institute, Gachon University, Seongnam, South Korea
| | - Moon-Jin Kim
- Department of BioNano Technology, Gachon BioNano Research Institute, Gachon University, Seongnam, South Korea
| | - Manki Song
- Science Unit, International Vaccine Institute, Seoul, South Korea.
| | - Jung-Hwan Park
- Department of BioNano Technology, Gachon BioNano Research Institute, Gachon University, Seongnam, South Korea.
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10
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Mokhtar SMA, Derrick-Roberts ALK, Evans DR, Strudwick XL. Cell Viability Assessment of PEDOT Conducting Polymer-Coated Microneedles for Skin Sampling. ACS APPLIED BIO MATERIALS 2023; 6:4662-4671. [PMID: 37902811 DOI: 10.1021/acsabm.3c00416] [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: 10/31/2023]
Abstract
Recently, transdermal monitoring and drug delivery have gained much interest, owing to the introduction of the minimally invasive microneedle (MN) device. The advancement of electroactive MNs electrically assisted in the capture of biomarkers or the triggering of drug release. Recent works have combined conducting polymers (CPs) onto MNs owing to the soft nature of the polymers and their tunable ionic and electronic conductivity. Though CPs are reported to work safely in the body, their biocompatibility in the skin has been insufficiently investigated. Furthermore, during electrical biasing of CPs, they undergo reduction or oxidation, which in practical terms leads to release/exchange of ions, which could pose biological risks. This work investigates the viability and proliferation of skin cells upon exposure to an electrochemically biased MN pair comprising two differently doped poly(3,4-ethylenedioxy-thiophene) (PEDOT) polymers that have been designed for skin sampling use. The impact of biasing on human keratinocytes and dermal fibroblasts was determined at different initial cell seeding densities and incubation periods. Indirect testing was employed, whereby the culture media was first exposed to PEDOTs prior to the addition of this extract to cells. In all conditions, both unbiased and biased PEDOT extracts showed no cytotoxicity, but the viability and proliferation of cells cultured at a low cell seeding density were lower than those of the control after 48 h of incubation.
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Affiliation(s)
- Siti Musliha Ajmal Mokhtar
- Future Industries Institute, UniSA STEM, University of South Australia, Mawson Lakes, SA 5095, Australia
- College of Engineering, Universiti Teknologi MARA, Johor Branch, Pasir Gudang Campus, Masai, Johor 81750, Malaysia
| | | | - Drew R Evans
- Future Industries Institute, UniSA STEM, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Xanthe L Strudwick
- Future Industries Institute, UniSA STEM, University of South Australia, Mawson Lakes, SA 5095, Australia
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11
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Multi-groove microneedles based wearable colorimetric sensor for simple and facile glucose detection. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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12
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Ribet F, Bendes A, Fredolini C, Dobielewski M, Böttcher M, Beck O, Schwenk JM, Stemme G, Roxhed N. Microneedle Patch for Painless Intradermal Collection of Interstitial Fluid Enabling Multianalyte Measurement of Small Molecules, SARS-CoV-2 Antibodies, and Protein Profiling. Adv Healthc Mater 2023; 12:e2202564. [PMID: 36748807 DOI: 10.1002/adhm.202202564] [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: 10/06/2022] [Revised: 01/19/2023] [Indexed: 02/08/2023]
Abstract
Blood sampling is a common practice to monitor health, but it entails a series of drawbacks for patients including pain and discomfort. Thus, there is a demand for more convenient ways to obtain samples. Modern analytical techniques enable monitoring of multiple bioanalytes in smaller samples, opening possibilities for new matrices, and microsampling technologies to be adopted. Interstitial fluid (ISF) is an attractive alternative matrix that shows good correlation with plasma concentration dynamics for several analytes and can be sampled in a minimally invasive and painless manner from the skin at the point-of-care. However, there is currently a lack of sampling devices compatible with clinical translation. Here, to tackle state-of-the-art limitations, a cost-effective and compact single-microneedle-based device designed to painlessly collect precisely 1.1 µL of dermal ISF within minutes is presented. The fluid is volume-metered, dried, and stably stored into analytical-grade paper within the microfluidic device. The obtained sample can be mailed to a laboratory, quantitatively analyzed, and provide molecular insights comparable to blood testing. In a human study, the possibility to monitor various classes of molecular analytes is demonstrated in ISF microsamples, including caffeine, hundreds of proteins, and SARS-CoV-2 antibodies, some being detected in ISF for the first time.
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Affiliation(s)
- Federico Ribet
- Division of Micro and Nanosystems, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
| | - Annika Bendes
- Division of Affinity Proteomics, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), SciLifeLab, Solna, 17165, Sweden
| | - Claudia Fredolini
- Division of Affinity Proteomics, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), SciLifeLab, Solna, 17165, Sweden
| | - Mikolaj Dobielewski
- Division of Micro and Nanosystems, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
| | - Michael Böttcher
- MVZ Medizinische Labor Dessau Kassel GmbH, D-06847, Dessau-Rosslau, Germany
| | - Olof Beck
- Department of Clinical Neuroscience, Karolinska Institute, Stockholm, 17177, Sweden
| | - Jochen M Schwenk
- Division of Affinity Proteomics, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), SciLifeLab, Solna, 17165, Sweden
| | - Göran Stemme
- Division of Micro and Nanosystems, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
| | - Niclas Roxhed
- Division of Micro and Nanosystems, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
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Nguyen HX, Nguyen CN. Microneedle-Mediated Transdermal Delivery of Biopharmaceuticals. Pharmaceutics 2023; 15:pharmaceutics15010277. [PMID: 36678906 PMCID: PMC9864466 DOI: 10.3390/pharmaceutics15010277] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/05/2023] [Accepted: 01/10/2023] [Indexed: 01/15/2023] Open
Abstract
Transdermal delivery provides numerous benefits over conventional routes of administration. However, this strategy is generally limited to a few molecules with specific physicochemical properties (low molecular weight, high potency, and moderate lipophilicity) due to the barrier function of the stratum corneum layer. Researchers have developed several physical enhancement techniques to expand the applications of the transdermal field; among these, microneedle technology has recently emerged as a promising platform to deliver therapeutic agents of any size into and across the skin. Typically, hydrophilic biomolecules cannot penetrate the skin by passive diffusion. Microneedle insertion disrupts skin integrity and compromises its protective function, thus creating pathways (microchannels) for enhanced permeation of macromolecules. Microneedles not only improve stability but also enhance skin delivery of various biomolecules. Academic institutions and industrial companies have invested substantial resources in the development of microneedle systems for biopharmaceutical delivery. This review article summarizes the most recent research to provide a comprehensive discussion about microneedle-mediated delivery of macromolecules, covering various topics from the introduction of the skin, transdermal delivery, microneedles, and biopharmaceuticals (current status, conventional administration, and stability issues), to different microneedle types, clinical trials, safety and acceptability of microneedles, manufacturing and regulatory issues, and the future of microneedle technology.
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Affiliation(s)
- Hiep X. Nguyen
- Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, Atlanta, GA 30341, USA
- Correspondence: ; Tel.: +1-404-820-4015
| | - Chien N. Nguyen
- National Institute of Pharmaceutical Technology, Hanoi University of Pharmacy, Hanoi 100000, Vietnam
- Faculty of Pharmaceutics and Pharmaceutical Technology, Hanoi University of Pharmacy, Hanoi 100000, Vietnam
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Microneedle arrays for cutaneous and transcutaneous drug delivery, disease diagnosis, and cosmetic aid. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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Olowe M, Parupelli SK, Desai S. A Review of 3D-Printing of Microneedles. Pharmaceutics 2022; 14:2693. [PMID: 36559187 PMCID: PMC9786808 DOI: 10.3390/pharmaceutics14122693] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/16/2022] [Accepted: 11/22/2022] [Indexed: 12/03/2022] Open
Abstract
Microneedles are micron-sized devices that are used for the transdermal administration of a wide range of active pharmaceutics substances with minimally invasive pain. In the past decade, various additive manufacturing technologies have been used for the fabrication of microneedles; however, they have limitations due to material compatibility and bioavailability and are time-consuming and expensive processes. Additive manufacturing (AM), which is popularly known as 3D-printing, is an innovative technology that builds three-dimensional solid objects (3D). This article provides a comprehensive review of the different 3D-printing technologies that have the potential to revolutionize the manufacturing of microneedles. The application of 3D-printed microneedles in various fields, such as drug delivery, vaccine delivery, cosmetics, therapy, tissue engineering, and diagnostics, are presented. This review also enumerates the challenges that are posed by the 3D-printing technologies, including the manufacturing cost, which limits its viability for large-scale production, the compatibility of the microneedle-based materials with human cells, and concerns around the efficient administration of large dosages of loaded microneedles. Furthermore, the optimization of microneedle design parameters and features for the best printing outcomes is of paramount interest. The Food and Drug Administration (FDA) regulatory guidelines relating to the safe use of microneedle devices are outlined. Finally, this review delineates the implementation of futuristic technologies, such as artificial intelligence algorithms, for 3D-printed microneedles and 4D-printing capabilities.
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Affiliation(s)
- Michael Olowe
- Department of Industrial and Systems Engineering, North Carolina Agricultural and Technical State University, Greensboro, NC 27411, USA
- Center of Excellence in Product Design and Advanced Manufacturing, North Carolina Agricultural and Technical State University, Greensboro, NC 27411, USA
| | - Santosh Kumar Parupelli
- Department of Industrial and Systems Engineering, North Carolina Agricultural and Technical State University, Greensboro, NC 27411, USA
- Center of Excellence in Product Design and Advanced Manufacturing, North Carolina Agricultural and Technical State University, Greensboro, NC 27411, USA
| | - Salil Desai
- Department of Industrial and Systems Engineering, North Carolina Agricultural and Technical State University, Greensboro, NC 27411, USA
- Center of Excellence in Product Design and Advanced Manufacturing, North Carolina Agricultural and Technical State University, Greensboro, NC 27411, USA
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An update on microneedle in insulin delivery: Quality attributes, clinical status and challenges for clinical translation. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Kim Y, Ryu YC, Min HS, Yang H, Nam J, Lee C, Um DJ, Kim M, Atzei P, Francisco RDB, Naef R, Choi K, Jung H. Dual‐Mode Vasodilator M119 Delivery to Hair Follicle via Dissolving Microneedle for Advanced Alopecia Treatment. ADVANCED THERAPEUTICS 2022. [DOI: 10.1002/adtp.202200052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Youseong Kim
- Department of Biotechnology Building 123 Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
| | - Yeong Chan Ryu
- Department of Biotechnology Building 123 Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
| | - Hye Su Min
- Department of Biotechnology Building 123 Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
| | - Huisuk Yang
- JUVIC 208Ho, 272 Digital‐ro Guro‐gu Seoul 08389 Republic of Korea
| | - Jeehye Nam
- Department of Biotechnology Building 123 Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
| | - Chisong Lee
- Department of Biotechnology Building 123 Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
| | - Daniel Junmin Um
- Department of Biotechnology Building 123 Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
| | - Miji Kim
- Department of Biotechnology Building 123 Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
| | - Paola Atzei
- TOPADUR Pharma AG Grabenstrasse 11A Schlieren 8952 Switzerland
| | | | - Reto Naef
- TOPADUR Pharma AG Grabenstrasse 11A Schlieren 8952 Switzerland
| | - Kang‐Yell Choi
- Department of Biotechnology Building 123 Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
- CK Regeon Inc. Engineering Research Park Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
| | - Hyungil Jung
- Department of Biotechnology Building 123 Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
- JUVIC 208Ho, 272 Digital‐ro Guro‐gu Seoul 08389 Republic of Korea
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Kim YS, Kim J, Na W, Sung GH, Baek SK, Kim YK, Kim GR, Hu HJ, Park JH. Development of a Microneedle Swab for Acquisition of Genomic DNA From Buccal Cells. Front Bioeng Biotechnol 2022; 10:829648. [PMID: 35252137 PMCID: PMC8895340 DOI: 10.3389/fbioe.2022.829648] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 01/17/2022] [Indexed: 11/13/2022] Open
Abstract
A swab is a tool for obtaining buccal DNA from buccal mucus for biological analysis. The acquisition of a sufficient amount and high quality of DNA is an important factor in determining the accuracy of a diagnosis. A microneedle swab (MN swab) was developed to obtain more oral mucosal tissues non-invasively. Eight types of MN swabs were prepared with varying combinations of patterns (zigzag or straight), number of MNs, intervals of MNs, and sharpness of tips. When MN swab was applied up to 10 times, the tissue amount and DNA yield increased compared to commercial swabs. A zigzag pattern of microneedles was found to be more efficient than a straight pattern and increasing the number of microneedles in an array increased the DNA yield. The MN swab collected about twice the DNA compared to the commercial swab. In an in vivo test using mini pigs, the lower cycle threshold values of mucosal samples collected with MN swabs compared to samples collected with commercial swabs indicated that a greater amount of DNA was collected for SNP genotyping. A polymer MN swab is easy to manufacture by a single molding process, and it has a greater sampling capacity than existing commercial swabs.
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Affiliation(s)
- Yun-Seo Kim
- Department of Bionano Technology and Gachon BioNano Research Institute, Gachon University, Seongnam, South Korea
| | - JeongHyeon Kim
- Department of Bionano Technology and Gachon BioNano Research Institute, Gachon University, Seongnam, South Korea
| | - Woonsung Na
- Laboratory of Veterinary Virology, College of Veterinary Medicine, Chonnam National University, Gwangju, South Korea
| | - Gil-Hwan Sung
- QuadMedicine R and D Centre, QuadMedicine Co., Ltd., Seongnam, South Korea
| | - Seung-Ki Baek
- QuadMedicine R and D Centre, QuadMedicine Co., Ltd., Seongnam, South Korea
| | | | | | - Hae-Jin Hu
- Endomics, Inc., Seongnam, South Korea
- *Correspondence: Hae-Jin Hu, ; Jung-Hwan Park,
| | - Jung-Hwan Park
- Department of Bionano Technology and Gachon BioNano Research Institute, Gachon University, Seongnam, South Korea
- *Correspondence: Hae-Jin Hu, ; Jung-Hwan Park,
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Gadziński P, Froelich A, Wojtyłko M, Białek A, Krysztofiak J, Osmałek T. Microneedle-based ocular drug delivery systems - recent advances and challenges. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2022; 13:1167-1184. [PMID: 36348935 PMCID: PMC9623140 DOI: 10.3762/bjnano.13.98] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 09/28/2022] [Indexed: 05/09/2023]
Abstract
Eye diseases and injuries constitute a significant clinical problem worldwide. Safe and effective delivery of drugs to the eye is challenging mostly due to the presence of ocular barriers and clearance mechanisms. In everyday practice, the traditional eye drops, gels and ointments are most often used. Unfortunately, they are usually not well tolerated by patients due to the need for frequent use as well as the discomfort during application. Therefore, novel drug delivery systems with improved biopharmaceutical properties are a subject of ongoing scientific investigations. Due to the developments in microtechnology, in recent years, there has been a remarkable advance in the development of microneedle-based systems as an alternative, non-invasive form for administering drugs to the eye. This review summarizes the latest achievements in the field of obtaining microneedle ocular patches. In the manuscript, the most important manufacturing technologies, microneedle classification, and the research studies related to ophthalmic application of microneedles are presented. Finally, the most important advantages and drawbacks, as well as potential challenges related to the unique anatomy and physiology of the eye are summarized and discussed.
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Affiliation(s)
- Piotr Gadziński
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences
| | - Anna Froelich
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences
| | - Monika Wojtyłko
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences
| | - Antoni Białek
- Student Research Group of Pharmaceutical Technology, Poznan University of Medical Sciences
| | - Julia Krysztofiak
- Student Research Group of Pharmaceutical Technology, Poznan University of Medical Sciences
| | - Tomasz Osmałek
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences
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20
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Huang Y, Yu H, Wang L, Shen D, Ni Z, Ren S, Lu Y, Chen X, Yang J, Hong Y. Research progress on cosmetic microneedle systems: Preparation, property and application. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2021.110942] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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21
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Rabiei M, Kashanian S, Bahrami G, Derakhshankhah H, Barzegari E, Samavati SS, McInnes SJP. Dissolving microneedle-assisted long-acting Liraglutide delivery to control type 2 diabetes and obesity. Eur J Pharm Sci 2021; 167:106040. [PMID: 34655736 DOI: 10.1016/j.ejps.2021.106040] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 09/26/2021] [Accepted: 10/12/2021] [Indexed: 01/07/2023]
Abstract
Integrating nanoparticles (NPs) as a smart and targeted tool for drug delivery with dissolving microneedle (DMN) patch, the non-invasive device for drug delivery, is a promising for future therapeutic delivery applications. Liraglutide (Lira) encapsulation in poly (lactic-co-glycolic acid) (PLGA) NPs provides a sustained release of Lira to 15 days in a biphasic profile which 80% of released content happens in the first 8 days. Embedding such sustained release NPs in the DMN comprising poly vinyl pyrrolidone (PVP) 50% w/v, eliminates the need for Lira subcutaneous injection. Additionally, NPs containing DMN enhance mechanical strength of needles to 5.31 N compared to DMN with pure Lira content which was 4.32 N. The flexible backing layer of the DMN was obtained via blending of PVP and poly vinyl alcohol (PVA) in 10% w/v. Circular dichroism (CD) analysis showed that Lira encapsulated in NPs maintained its native secondary structure even after solidification in DMN. In this study, the capacity of 2 kinds of 500 μm and 1000 μm needles to deliver the desired dose of drug was obtained based on experimental and mathematical methods.
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Affiliation(s)
- Morteza Rabiei
- Nanobiotechnology Department, Faculty of Innovative Science and Technology, Razi University, Kermanshah, Iran
| | - Soheila Kashanian
- Nanobiotechnology Department, Faculty of Innovative Science and Technology, Razi University, Kermanshah, Iran; Faculty of Chemistry, Sensor and Biosensor Research Center (SBRC), Razi University, Kermanshah, Iran; Department of Medical Biotechnology, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah 6714415185, Iran.
| | - Gholamreza Bahrami
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Hossein Derakhshankhah
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ebrahim Barzegari
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Seyedeh Sabereh Samavati
- Nanobiotechnology Department, Faculty of Innovative Science and Technology, Razi University, Kermanshah, Iran
| | - Steven J P McInnes
- University of South Australia, STEM, Mawson Lakes Campus, Mawson Lakes, South Australia 5095, Australia
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Cytrellis: A Novel Microcoring Technology for Scarless Skin Removal: Summary of Three Prospective Clinical Trials. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2021; 9:e3905. [PMID: 34729291 PMCID: PMC8556055 DOI: 10.1097/gox.0000000000003905] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 09/08/2021] [Indexed: 11/27/2022]
Abstract
Background We introduce an innovative and novel technology that achieves scarless skin removal without the use of thermal energy. Microcoring technology (MCT) uses a modified, hollow hypodermic needle to remove skin safely and without a scar. This method is advantageous compared to other fractional devices, given that it has the same benefits as energy-based devices (removal of skin cores without a scar), with the added value of immediate closure along the relaxed skin tension lines, with significantly less thermal energy. Methods Three prospective clinical safety trials analyzing MCT treatment on abdominal and facial skin (short- and long-term) are described. Results MCT treatment of human skin resulted in scarless skin removal that was well tolerated by patients. Healing occurred rapidly, with limited side effects. Skin area reduction (skin tightening) and increase in skin thickness were observed long term. Conclusions MCT treatment of human skin is safe and well tolerated. Although further studies on efficacy are required to evaluate the full potential of MCT in skin rejuvenation, early findings such as skin tightening and increase in skin thickness are encouraging.
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Zhao J, Xu G, Yao X, Zhou H, Lyu B, Pei S, Wen P. Microneedle-based insulin transdermal delivery system: current status and translation challenges. Drug Deliv Transl Res 2021; 12:2403-2427. [PMID: 34671948 PMCID: PMC8528479 DOI: 10.1007/s13346-021-01077-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2021] [Indexed: 01/27/2023]
Abstract
Diabetes mellitus is a metabolic disease manifested by hyperglycemia. For patients with type 1 and advanced type 2 diabetes mellitus, insulin therapy is essential. Subcutaneous injection remains the most common administration method. Non-invasive insulin delivery technologies are pursued because of their benefits of decreasing patients' pain, anxiety, and stress. Transdermal delivery systems have gained extensive attention due to the ease of administration and absence of hepatic first-pass metabolism. Microneedle (MN) technology is one of the most promising tactics, which can effectively deliver insulin through skin stratum corneum in a minimally invasive and painless way. This article will review the research progress of MNs in insulin transdermal delivery, including hollow MNs, dissolving MNs, hydrogel MNs, and glucose-responsive MN patches, in which insulin dosage can be strictly controlled. The clinical studies about insulin delivery with MN devices have also been summarized and grouped based on the study phase. There are still several challenges to achieve successful translation of MNs-based insulin therapy. In this review, we also discussed these challenges including safety, efficacy, patient/prescriber acceptability, manufacturing and scale-up, and regulatory authority acceptability.
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Affiliation(s)
- Jing Zhao
- Prinbury Biopharm Co, 538 Cailun Road Zhangjiang Hi-Tech Park Shanghai, Ltd, 200120 No China
| | - Genying Xu
- Department of Pharmacy, Zhongshan Hospital Fudan University, No. 180 Fenglin Road, Shanghai, 200032 China
| | - Xin Yao
- Prinbury Biopharm Co, 538 Cailun Road Zhangjiang Hi-Tech Park Shanghai, Ltd, 200120 No China
| | - Huirui Zhou
- Prinbury Biopharm Co, 538 Cailun Road Zhangjiang Hi-Tech Park Shanghai, Ltd, 200120 No China
| | - Boyang Lyu
- Prinbury Biopharm Co, 538 Cailun Road Zhangjiang Hi-Tech Park Shanghai, Ltd, 200120 No China
| | - Shuangshuang Pei
- Prinbury Biopharm Co, 538 Cailun Road Zhangjiang Hi-Tech Park Shanghai, Ltd, 200120 No China
| | - Ping Wen
- School of Pharmacy, Fudan University, No. 826 Zhangheng Road Zhangjiang Hi-Tech Park , Shanghai, 200120 China
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Bozorgi A, Fahimnia B. Micro array patch (MAP) for the delivery of thermostable vaccines in Australia: A cost/benefit analysis. Vaccine 2021; 39:6166-6173. [PMID: 34489130 DOI: 10.1016/j.vaccine.2021.08.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/03/2021] [Accepted: 08/05/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND It is anticipated that transforming the vaccine supply chain from syringe-and-needle to thermostable vaccines enabled by Micro Array Patch (MAP) will result in reduced supply chain costs as well as reduced wastes (environmental impact) and improved safety. This paper provides a thorough cost comparison of the conventional syringe-and-needle vaccine supply chain versus the MAP vaccine supply chain for influenza vaccine delivery in Australia. OBJECTIVE To determine the potential cost implications and general benefits of replacing syringe-and-needle flu vaccine with MAP-enabled thermostable flu vaccine in Australia. METHODS We first provide a snapshot of the existing flu vaccine supply chain in Australia including its limitations and opportunities for improvement. Data/information is collected through interviewing the key stakeholders across vaccine supply chain including vaccine manufacturers, logistics providers, clinics, hospitals, and pharmacies. A cost/benefit analysis of the anticipated supply chain of the MAP-enabled vaccine will reveal the opportunities and challenges of supply chain transformation for flu vaccine delivery in Australia. FINDINGS Our high-level practice-informed cost/benefit analysis identifies cold chain removal as an important source of cost saving, but administrative cost savings appear to be even more significant (e.g., time saving for nurses and those involved in cold chain management). Our analysis also identifies the key benefits and limitations of vaccine supply chain transformation in Australia. CONCLUSION We conclude that the benefits of moving from syringe-and-needle vaccines to thermostable MAP-delivered vaccines are beyond transportation and storage cost saving. Potential benefits through cost saving, waste reduction, and service level improvement are discussed along with various safety and wellbeing consequences as well as directions for future research in this area.
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Affiliation(s)
- Ali Bozorgi
- Institute of Transport and Logistics Studies, The University of Sydney Business School, Sydney, Australia.
| | - Behnam Fahimnia
- Institute of Transport and Logistics Studies, The University of Sydney Business School, Sydney, Australia.
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Bozorgi A, Fahimnia B. Transforming the vaccine supply chain in Australia: Opportunities and challenges. Vaccine 2021; 39:6157-6165. [PMID: 34489129 DOI: 10.1016/j.vaccine.2021.08.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/09/2021] [Accepted: 08/10/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Analyzing potential benefits of thermostable vaccines delivered through Micro Array Patch (MAP) has received great attention in low and middle-income countries. The experience may or may not be the same in developed countries where the infrastructure is more developed. It is anticipated that transforming the vaccine supply chain from syringe-and-needle to thermostable MAP-delivered vaccines will result in reduced supply chain costs - including manufacturing/supply, logistics/distribution, and administration costs - as well as reduced wastes and improved safety. This paper provides an end-to-end supply chain analysis comparing the key aspects (cost, safety and environmental aspects) of the conventional syringe-and-needle vaccine supply chain with those of the MAP vaccine supply chain for influenza vaccine delivery in Australia. Directions for future research in this area will be provided. OBJECTIVE To determine the potential supply chain impacts of replacing syringe-and-needle flu vaccine with MAP-enabled thermostable flu vaccine in Australia. METHODS We analyze the current flu vaccine supply chain in Australia to identify practical limitations and opportunities for improvement. Data/information is collected through interviewing the key stakeholders across vaccine supply chain including vaccine manufacturers, logistics providers, clinics, hospitals, and pharmacies. FINDINGS A detailed practice-informed analysis is completed on the key operations of the flu vaccine supply chain. Barriers and limitations of the conventional flu vaccine are discussed, along with potential improvements that can be achieved through the implementation of MAP-enabled flu vaccine delivery. We discuss how technology-driven innovations can help advance vaccine supply chains, improve vaccine visibility, reduce wastes, and enable informed decision-making. CONCLUSION We find that the benefits of moving from syringe-and-needle vaccines to thermostable MAP-delivered vaccines are beyond transportation and storage cost saving. Potential benefits through cost saving, waste reduction, and service level improvement are discussed along with various safety and wellbeing consequences followed by directions for future research in this area.
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Affiliation(s)
- Ali Bozorgi
- Institute of Transport and Logistics Studies, The University of Sydney Business School, Sydney, Australia.
| | - Behnam Fahimnia
- Institute of Transport and Logistics Studies, The University of Sydney Business School, Sydney, Australia.
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Aldawood FK, Andar A, Desai S. A Comprehensive Review of Microneedles: Types, Materials, Processes, Characterizations and Applications. Polymers (Basel) 2021; 13:2815. [PMID: 34451353 PMCID: PMC8400269 DOI: 10.3390/polym13162815] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/15/2021] [Accepted: 08/16/2021] [Indexed: 11/16/2022] Open
Abstract
Drug delivery through the skin offers many advantages such as avoidance of hepatic first-pass metabolism, maintenance of steady plasma concentration, safety, and compliance over oral or parenteral pathways. However, the biggest challenge for transdermal delivery is that only a limited number of potent drugs with ideal physicochemical properties can passively diffuse and intercellularly permeate through skin barriers and achieve therapeutic concentration by this route. Significant efforts have been made toward the development of approaches to enhance transdermal permeation of the drugs. Among them, microneedles represent one of the microscale physical enhancement methods that greatly expand the spectrum of drugs for transdermal and intradermal delivery. Microneedles typically measure 0.1-1 mm in length. In this review, microneedle materials, fabrication routes, characterization techniques, and applications for transdermal delivery are discussed. A variety of materials such as silicon, stainless steel, and polymers have been used to fabricate solid, coated, hollow, or dissolvable microneedles. Their implications for transdermal drug delivery have been discussed extensively. However, there remain challenges with sustained delivery, efficacy, cost-effective fabrication, and large-scale manufacturing. This review discusses different modes of characterization and the gaps in manufacturing technologies associated with microneedles. This review also discusses their potential impact on drug delivery, vaccine delivery, disease diagnostic, and cosmetics applications.
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Affiliation(s)
- Faisal Khaled Aldawood
- Industrial Engineering Department, College of Engineering, University of Bisha, Bisha 67714, Saudi Arabia;
| | - Abhay Andar
- Potomac Photonics, Inc., Halethorpe, MD 21227, USA;
| | - Salil Desai
- Center for Excellence in Product Design and Advanced Manufacturing, North Carolina A & T State University, Greensboro, NC 27411, USA
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Kang NW, Kim S, Lee JY, Kim KT, Choi Y, Oh Y, Kim J, Kim DD, Park JH. Microneedles for drug delivery: recent advances in materials and geometry for preclinical and clinical studies. Expert Opin Drug Deliv 2021; 18:929-947. [PMID: 32975144 DOI: 10.1080/17425247.2021.1828860] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION A microneedle array patch (MAP) has been studied as a means for delivering drugs or vaccines and has shown superior delivery efficiency compared to the conventional transdermal drug delivery system (TDD). This paper reviews recent advancements in the development of MAPs, with a focus on their size, shapes, and materials in preclinical and clinical studies for pharmaceutics. AREA COVERED We classified MAPs for drug delivery into four types: coated, dissolving, separable, and swellable. We covered their recent developments in materials and geometry in preclinical and clinical studies. EXPERT OPINION The design of MAPs needs to be determined based on what properties would be effective for the target diseases and purposes. In addition, in preclinical studies, it is necessary to consider not only the novelty of the formulations but also the feasibility of clinical application. Currently, clinical studies of microneedles loaded with various drugs and vaccines are in progress. When the regulation of pharmaceutical microneedles is established and more clinical studies are published, more drugs will be developed as microneedle products and clinical research will proceed. With these considerations, the microneedle array patch will be a better option for drug delivery.
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Affiliation(s)
- Nae-Won Kang
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea
| | - Sungho Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea
| | - Jae-Young Lee
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Ki-Taek Kim
- College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Jeonnam, Republic of Korea
| | - Yuji Choi
- Department of BioNano Technology and Gachon BioNano Research Institute, Gachon University, Seongnam, Republic of Korea
| | - Yujeong Oh
- Department of BioNano Technology and Gachon BioNano Research Institute, Gachon University, Seongnam, Republic of Korea
| | - Jongchan Kim
- Department of BioNano Technology and Gachon BioNano Research Institute, Gachon University, Seongnam, Republic of Korea
| | - Dae-Duk Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea
| | - Jung-Hwan Park
- Department of BioNano Technology and Gachon BioNano Research Institute, Gachon University, Seongnam, Republic of Korea
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Dalvi M, Kharat P, Thakor P, Bhavana V, Singh SB, Mehra NK. Panorama of dissolving microneedles for transdermal drug delivery. Life Sci 2021; 284:119877. [PMID: 34384832 DOI: 10.1016/j.lfs.2021.119877] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/25/2021] [Accepted: 07/31/2021] [Indexed: 11/16/2022]
Abstract
Recently, microfabrication technology has been developed to increase the permeability of drugs for transdermal delivery. Microneedles are ultra-small needles usually in the micron size range (different dimensions in micron), generate pores, and allow for delivery of local medication in the systemic circulation via skin. The microneedles have been available in dissolving, solid, coated, hollow, and hydrogel-based microneedles. Dissolving microneedles have been fabricated using micro-molding, photo-polymerization, drawing lithography and droplet blowing techniques. Dissolving microneedles could be a valuable option for the delivery of low molecular weight drugs, peptides, enzymes, vaccines and bio-therapeutics. It consists of water-soluble materials including maltose, polyvinyl pyrrolidone, chondroitin sulfate, dextran, hyaluronic acid, and albumin. The microneedles have almost dissolved after patch removal, leaving only blunt stubs behind, which are easily removable. In this review, we summarize the major building blocks, classification, fabrication techniques, characterization, diffusion models and application of microneedles in diverse area. We also reviewed the regulatory aspects, computational studies, patents, clinical data, and market trends of microneedles.
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Affiliation(s)
- Mayuri Dalvi
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Pratik Kharat
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Pradip Thakor
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Valamla Bhavana
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Shashi Bala Singh
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Neelesh Kumar Mehra
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India.
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Choi YJ, Kim KA, Jung JH, Choi YS, Baek SK, Kim ST, Park JH. Epicutaneous Allergen Administration with Microneedles as a Novel Method of Immunotherapy for House Dust Mite (HDM) Allergic Rhinitis. Pharm Res 2021; 38:1199-1207. [PMID: 34145532 DOI: 10.1007/s11095-021-03070-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 05/31/2021] [Indexed: 12/01/2022]
Abstract
PURPOSE Epicutaneous immunotherapy (EPIT) is being studied as a method for treating allergic rhinitis because of skin immunology, user convenience and enhanced patient compliance. However, the use of EPIT is limited because of the very low skin permeability of the allergen. In this study, the limitations of EPIT were overcome by using sophisticated delivery with microneedles. The immunological efficacy of this method was studied in a murine model of house dust mite (HDM) allergic rhinitis. METHODS The length of the microneedles was 400 μm, and the coating formulation containing HDM was locally distributed near the end of the microneedle tips. The change of distribution of FITC-dextran in porcine skin in vitro was observed over time using a confocal microscope. The effect of immunotherapy in the allergic rhinitis model, sensitized by HDM-coated microneedles (HDM MNs), was observed according to the amount of HDM applied. RESULTS The microneedles delivered the coating formulation with precision into the porcine skin layer, and the coated formulation on the microneedles was all dissolved in the porcine skin in vitro within 20 min of administration and then gradually diffused into the skin layer. When HDM MNs were administered to mice, a 0.1-μg dose of HDM provided the most effective immunization, and improved efficacy was shown between 0.1- and 0.5- μg doses of HDM. CONCLUSIONS Effective immunotherapy can be achieved by precision delivery of the allergen into the skin layer, and microneedles can provide effective immunological therapy by delivering the appropriate amount of allergen.
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Affiliation(s)
- Yu-Ji Choi
- Department of BioNano Technology, Gachon BioNano Research Institute, Gachon University, Seongnam, Republic of Korea
| | - Kyeong-Ah Kim
- Department of Otolaryngology-Head & Neck Surgery, Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea
| | - Joo-Hyun Jung
- Department of Otolaryngology-Head & Neck Surgery, Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea
| | - Yun-Sook Choi
- Department of Otolaryngology-Head & Neck Surgery, Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea
| | - Seung-Ki Baek
- QuadMedicine R&D Centre, QuadMedicine Co., Ltd, Seongnam, Republic of Korea
| | - Seon-Tae Kim
- Department of Otolaryngology-Head & Neck Surgery, Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea.
| | - Jung-Hwan Park
- Department of BioNano Technology, Gachon BioNano Research Institute, Gachon University, Seongnam, Republic of Korea.
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Song X, Wang Y, Chen H, Jin Y, Wang Z, Lu Y, Wang Y. Dosage-efficacy relationship and pharmacodynamics validation of brucine dissolving microneedles against rheumatoid arthritis. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Makvandi P, Kirkby M, Hutton ARJ, Shabani M, Yiu CKY, Baghbantaraghdari Z, Jamaledin R, Carlotti M, Mazzolai B, Mattoli V, Donnelly RF. Engineering Microneedle Patches for Improved Penetration: Analysis, Skin Models and Factors Affecting Needle Insertion. NANO-MICRO LETTERS 2021; 13:93. [PMID: 34138349 PMCID: PMC8006208 DOI: 10.1007/s40820-021-00611-9] [Citation(s) in RCA: 126] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/05/2021] [Indexed: 05/14/2023]
Abstract
Transdermal microneedle (MN) patches are a promising tool used to transport a wide variety of active compounds into the skin. To serve as a substitute for common hypodermic needles, MNs must pierce the human stratum corneum (~ 10 to 20 µm), without rupturing or bending during penetration. This ensures that the cargo is released at the predetermined place and time. Therefore, the ability of MN patches to sufficiently pierce the skin is a crucial requirement. In the current review, the pain signal and its management during application of MNs and typical hypodermic needles are presented and compared. This is followed by a discussion on mechanical analysis and skin models used for insertion tests before application to clinical practice. Factors that affect insertion (e.g., geometry, material composition and cross-linking of MNs), along with recent advancements in developed strategies (e.g., insertion responsive patches and 3D printed biomimetic MNs using two-photon lithography) to improve the skin penetration are highlighted to provide a backdrop for future research.
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Affiliation(s)
- Pooyan Makvandi
- Istituto Italiano Di Tecnologia, Centre for Materials Interface, Viale Rinaldo Piaggio 34, 56025, Pontedera, Pisa, Italy.
| | - Melissa Kirkby
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | - Aaron R J Hutton
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | - Majid Shabani
- Istituto Italiano Di Tecnologia, Centre for Materials Interface, Viale Rinaldo Piaggio 34, 56025, Pontedera, Pisa, Italy
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Viale Rinaldo Piaggio 34, 56025, Pontedera, Pisa, Italy
| | - Cynthia K Y Yiu
- Paediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong SAR, China
| | - Zahra Baghbantaraghdari
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, 80125, Naples, Italy
| | - Rezvan Jamaledin
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, 80125, Naples, Italy
- Center for Advanced Biomaterials for Health Care (iit@CRIB), Italian Institute of Technology, 80125, Naples, Italy
| | - Marco Carlotti
- Istituto Italiano Di Tecnologia, Centre for Materials Interface, Viale Rinaldo Piaggio 34, 56025, Pontedera, Pisa, Italy
| | - Barbara Mazzolai
- Istituto Italiano Di Tecnologia, Centre for Materials Interface, Viale Rinaldo Piaggio 34, 56025, Pontedera, Pisa, Italy
| | - Virgilio Mattoli
- Istituto Italiano Di Tecnologia, Centre for Materials Interface, Viale Rinaldo Piaggio 34, 56025, Pontedera, Pisa, Italy.
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK.
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Zhang BL, Zhang XP, Chen BZ, Fei WM, Cui Y, Guo XD. Microneedle-assisted technology for minimally invasive medical sensing. Microchem J 2021. [DOI: 10.1016/j.microc.2020.105830] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Daly S, Claydon NCA, Newcombe RG, Seong J, Addy M, West NX. Randomised controlled trial of a microneedle patch with a topical anaesthetic for relieving the pain of dental injections. J Dent 2021; 107:103617. [PMID: 33636242 DOI: 10.1016/j.jdent.2021.103617] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 02/17/2021] [Accepted: 02/20/2021] [Indexed: 10/22/2022] Open
Abstract
OBJECTIVES To determine whether a microneedle patch combined with 5% topical lidocaine reduces dental injection pain more than a patch without microneedles combined with 5% topical lidocaine. METHODS This proof of principle randomised, two-treatment, double-blind, crossover split-unit design study in 16 healthy participants investigated levels of perceived pain from 3 increasing pain provoking challenges, when topical 5% lidocaine dental gel was applied to the oral mucosa with a microneedle patch and a patch with no microneedles, prior to infiltration with local anaesthesia on 2 visits. Pain was assessed by visual analogue scale (VAS) and 4-point verbal rating scale (VRS). RESULTS 15 participants completed the study. Mean pain scores, lower at buccal sites, increased in both groups across challenges 1-3: Test palatal 5.1, 11.9, 26.8; buccal 0.7, 2.8, 18.3; Control palatal 12.3, 18.7, 39.5; buccal 4.0, 6.9, 30.6. The microneedle patch plus lidocaine significantly lowered VAS pain scores at both sites for all challenges, the biggest mean difference seen palatally after challenge 3 (12.7, p < 0.001). VRS pain scores were also significantly reduced for test compared to control for all 3 challenges (p = 0.014). Buccal scores favoured the microneedle patch, significantly for pain challenge 3 (p = 0.025). No adverse events occurred. CONCLUSIONS Prior oral application of a microneedle patch combined with 5% topical lidocaine gel reduced the pain experienced from dental infiltration. Microneedle patch use in the dental setting offers the prospect of improving degree and depth of anaesthesia from topically applied anaesthetic gel, without itself causing any pain. CLINICAL SIGNIFICANCE Dental injections are associated with fear and anxiety. Application of a microneedle patch, combined with topical anaesthetic, to the oral mucosa prior to delivery of the injection reduces the pain from this dental procedure. This novel technique may allay patients' apprehension of local anaesthesia and improve quality of life outcomes.
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Affiliation(s)
- Sinead Daly
- Clinical Trials Unit, Bristol Dental Hospital, Lower Maudlin Street, Bristol, BS1 2LY, United Kingdom.
| | - Nicholas C A Claydon
- Clinical Trials Unit, Bristol Dental Hospital, Lower Maudlin Street, Bristol, BS1 2LY, United Kingdom.
| | - Robert G Newcombe
- Division of Population Medicine, School of Medicine, Heath Park, Cardiff, CF14 4XN, Wales, United Kingdom.
| | - Joon Seong
- Clinical Trials Unit, Bristol Dental Hospital, Lower Maudlin Street, Bristol, BS1 2LY, United Kingdom.
| | - Martin Addy
- Clinical Trials Unit, Bristol Dental Hospital, Lower Maudlin Street, Bristol, BS1 2LY, United Kingdom.
| | - Nicola X West
- Clinical Trials Unit, Bristol Dental Hospital, Lower Maudlin Street, Bristol, BS1 2LY, United Kingdom.
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Babity S, Polomska AK, Couture F, Bonmarin M, Fehr D, Detmar M, Brambilla D. Rational design of a fluorescent microneedle tattoo for minimally invasive monitoring of lymphatic function. J Control Release 2020; 327:350-359. [DOI: 10.1016/j.jconrel.2020.08.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 08/12/2020] [Accepted: 08/13/2020] [Indexed: 02/08/2023]
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Dong Z, Zhao W, Li Y, Wang X, Ma T, Wang Y, Zhang L, Wei F, Liu H, Wang Q. Development and evaluation of new methods for protein quantification in dissolving microneedles formulations. J Pharm Biomed Anal 2020; 189:113453. [DOI: 10.1016/j.jpba.2020.113453] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 06/25/2020] [Accepted: 06/27/2020] [Indexed: 01/07/2023]
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Choi IJ, Na W, Kang A, Ahn MH, Yeom M, Kim HO, Lim JW, Choi SO, Baek SK, Song D, Park JH. Patchless administration of canine influenza vaccine on dog's ear using insertion-responsive microneedles (IRMN) without removal of hair and its in vivo efficacy evaluation. Eur J Pharm Biopharm 2020; 153:150-157. [PMID: 32544527 PMCID: PMC7293535 DOI: 10.1016/j.ejpb.2020.06.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 04/15/2020] [Accepted: 06/08/2020] [Indexed: 12/31/2022]
Abstract
Microneedles provide the advantages of convenience and compliance by avoiding the pain and fear of needles that animals often experience. Insertion-responsive microneedles (IRMN) were used for administration to a hairy dog without removing the dog's hair. Canine H3N2 vaccine was administered with IRMN attached to the dog's ears ex vivo and the conventional microneedle system (MN) was administered for 15 min to compare puncture performance and delivery efficiency. The vaccine was also administered to compare antibody formation using IRMN with the use of intramuscular injection. The veterinarian observed the behavior of the dog during the course of the administration and compared the response to IRMN with that of intramuscular administration. The tips of IRMN were separated from the base and delivered into the hairy skin successfully. Puncture performance of IRMN were the same as that of coated microneedles (95%), but delivery efficiency of IRMN were 95% compared to less than 1% for coated microneedles. The H3N2 vaccine inoculated into the dog's ears showed the same antibody formation as the intramuscular injection. The dog appeared to be more comfortable with IRMN administration compared to syringe administration. IRMN are the first microneedle system to deliver a canine vaccine successfully into a hairy dog without removal of the dog's hair. The use of IRMN can provide both convenience and compliance for both the dog and the owner.
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Affiliation(s)
- In-Jeong Choi
- QuadMedicine R&D Centre, QuadMedicine, Inc., Seongnam, #605, Building B14 Sagimakgol-ro, 45beon-gil, Jungwon-gu, Seongnam-si, Gyeonggi-do 13209, Republic of Korea
| | - Woonsung Na
- College of Veterinary Medicine, Chonnam National University, Yongbong-ro 77, Gwangju 61186, Republic of Korea
| | - Aram Kang
- College of Pharmacy, Korea University, Sejongro 2511, Sejong 30019, Republic of Korea
| | - Myun-Hwan Ahn
- QuadMedicine R&D Centre, QuadMedicine, Inc., Seongnam, #605, Building B14 Sagimakgol-ro, 45beon-gil, Jungwon-gu, Seongnam-si, Gyeonggi-do 13209, Republic of Korea
| | - Minjoo Yeom
- College of Pharmacy, Korea University, Sejongro 2511, Sejong 30019, Republic of Korea
| | - Hyung-Ouk Kim
- Department of Biotechnology and Bioengineering, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea
| | - Jong-Woo Lim
- Department of Chemical and Biomolecular Engineering, Yonsei University Yonsei-ro 50, Seoul 03722, Republic of Korea
| | - Seong-O Choi
- QuadMedicine R&D Centre, QuadMedicine, Inc., Seongnam, #605, Building B14 Sagimakgol-ro, 45beon-gil, Jungwon-gu, Seongnam-si, Gyeonggi-do 13209, Republic of Korea
| | - Seung-Ki Baek
- QuadMedicine R&D Centre, QuadMedicine, Inc., Seongnam, #605, Building B14 Sagimakgol-ro, 45beon-gil, Jungwon-gu, Seongnam-si, Gyeonggi-do 13209, Republic of Korea
| | - Daesub Song
- College of Pharmacy, Korea University, Sejongro 2511, Sejong 30019, Republic of Korea.
| | - Jung-Hwan Park
- Department of BioNano Technology, Gachon University, Sujeong-gu, Seongnam-si Gyeonggi-do 13120, Republic of Korea.
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Madden J, O'Mahony C, Thompson M, O'Riordan A, Galvin P. Biosensing in dermal interstitial fluid using microneedle based electrochemical devices. SENSING AND BIO-SENSING RESEARCH 2020. [DOI: 10.1016/j.sbsr.2020.100348] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Jamaledin R, Yiu CKY, Zare EN, Niu LN, Vecchione R, Chen G, Gu Z, Tay FR, Makvandi P. Advances in Antimicrobial Microneedle Patches for Combating Infections. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2002129. [PMID: 32602146 DOI: 10.1002/adma.202002129] [Citation(s) in RCA: 177] [Impact Index Per Article: 44.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 05/16/2020] [Indexed: 05/22/2023]
Abstract
Skin infections caused by bacteria, viruses and fungi are difficult to treat by conventional topical administration because of poor drug penetration across the stratum corneum. This results in low bioavailability of drugs to the infection site, as well as the lack of prolonged release. Emerging antimicrobial transdermal and ocular microneedle patches have become promising medical devices for the delivery of various antibacterial, antifungal, and antiviral therapeutics. In the present review, skin anatomy and its barriers along with skin infection are discussed. Potential strategies for designing antimicrobial microneedles and their targeted therapy are outlined. Finally, biosensing microneedle patches associated with personalized drug therapy and selective toxicity toward specific microbial species are discussed.
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Affiliation(s)
- Rezvan Jamaledin
- Center for Advanced Biomaterials for Health Care (iit@CRIB), Istituto Italiano di Tecnologia, Naples, 80125, Italy
| | - Cynthia K Y Yiu
- Paediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong SAR, P. R. China
| | - Ehsan N Zare
- School of Chemistry, Damghan University, Damghan, 36716-41167, Iran
| | - Li-Na Niu
- State Key Laboratory of Military Stomatology National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, 710000, P. R. China
| | - Raffaele Vecchione
- Center for Advanced Biomaterials for Health Care (iit@CRIB), Istituto Italiano di Tecnologia, Naples, 80125, Italy
| | - Guojun Chen
- Department of Bioengineering, University of California, Los Angeles, CA, 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA
| | - Zhen Gu
- Department of Bioengineering, University of California, Los Angeles, CA, 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA
| | - Franklin R Tay
- The Graduate School, Augusta University, Augusta, GA, 30912, USA
| | - Pooyan Makvandi
- Institute for Polymers, Composites, and Biomaterials (IPCB), National Research Council (CNR), Naples, 80125, Italy
- Chemistry Department, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, 61537-53843, Iran
- Department of Medical Nanotechnology, Faculty of Advanced, Technologies in Medicine, Iran University of Medical Sciences, Tehran, 14496-14535, Iran
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Guillot AJ, Cordeiro AS, Donnelly RF, Montesinos MC, Garrigues TM, Melero A. Microneedle-Based Delivery: An Overview of Current Applications and Trends. Pharmaceutics 2020; 12:pharmaceutics12060569. [PMID: 32575392 PMCID: PMC7355570 DOI: 10.3390/pharmaceutics12060569] [Citation(s) in RCA: 108] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 06/13/2020] [Accepted: 06/16/2020] [Indexed: 12/18/2022] Open
Abstract
Microneedle arrays (MNA) are considered as one of the most promising resources to achieve systemic effects by transdermal delivery of drugs. They are designed as a minimally invasive, painless system which can bypass the stratum corneum, overcoming the potential drawbacks of subcutaneous injections and other transdermal delivery systems such as chemical enhancers, nano and microparticles, or physical treatments. As a trendy field in pharmaceutical and biomedical research, its applications are constantly evolving, even though they are based on very well-established techniques. The number of molecules administered by MNA are also increasing, with insulin and vaccines administration being the most investigated. Furthermore, MNA are being used to deliver cells and applied in other organs and tissues like the eyes and buccal mucosae. This review intends to offer a general overview of the current state of MNA research, focusing on the strategies, applications, and types of molecules delivered recently by these systems. In addition, some information about the materials and manufacturing processes is presented and safety data is discussed.
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Affiliation(s)
- Antonio José Guillot
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Avda. Vincent Andrés Estellés s/n, 46100 Burjassot, Spain; (A.J.G.); (A.M.)
| | - Ana Sara Cordeiro
- School of Pharmacy, Queen’s University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK; (A.S.C.); (R.F.D.)
| | - Ryan F. Donnelly
- School of Pharmacy, Queen’s University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK; (A.S.C.); (R.F.D.)
| | - M. Carmen Montesinos
- Department of Pharmacology, Faculty of Pharmacy, University of Valencia, Avda. Vincent Andrés Estellés s/n, 46100 Burjassot, Spain
- Center of Molecular Recognition and Technological Development (IDM), 46100 Burjassot, Spain
- Correspondence: (M.C.M.); (T.M.G.)
| | - Teresa M. Garrigues
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Avda. Vincent Andrés Estellés s/n, 46100 Burjassot, Spain; (A.J.G.); (A.M.)
- Correspondence: (M.C.M.); (T.M.G.)
| | - Ana Melero
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Avda. Vincent Andrés Estellés s/n, 46100 Burjassot, Spain; (A.J.G.); (A.M.)
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41
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Zhu DD, Zhang XP, Zhang BL, Hao YY, Guo XD. Safety Assessment of Microneedle Technology for Transdermal Drug Delivery: A Review. ADVANCED THERAPEUTICS 2020. [DOI: 10.1002/adtp.202000033] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Dan Dan Zhu
- Beijing Laboratory of Biomedical Materials, College of Materials Science and EngineeringBeijing University of Chemical Technology Beijing 100029 P. R. China
| | - Xiao Peng Zhang
- Beijing Laboratory of Biomedical Materials, College of Materials Science and EngineeringBeijing University of Chemical Technology Beijing 100029 P. R. China
| | - Bao Li Zhang
- Beijing Laboratory of Biomedical Materials, College of Materials Science and EngineeringBeijing University of Chemical Technology Beijing 100029 P. R. China
| | - Yu Ying Hao
- Beijing Laboratory of Biomedical Materials, College of Materials Science and EngineeringBeijing University of Chemical Technology Beijing 100029 P. R. China
| | - Xin Dong Guo
- Beijing Laboratory of Biomedical Materials, College of Materials Science and EngineeringBeijing University of Chemical Technology Beijing 100029 P. R. China
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42
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Lin S, Lin H, Yang M, Ge M, Chen Y, Zhu Y. A two-dimensional MXene potentiates a therapeutic microneedle patch for photonic implantable medicine in the second NIR biowindow. NANOSCALE 2020; 12:10265-10276. [PMID: 32356854 DOI: 10.1039/d0nr01444c] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Due to the refractory nature and recurrence of cancer, the related treatments are continuously updated and improved. Here, we designed a soluble polyvinylpyrrolidone (PVP) microneedle system loaded with a two-dimensional (2D) MXene (Nb2C nanosheets) for medical implantation and photothermal ablation of superficial tumors in the second near infrared biological window (NIR-II). In this system, 2D Nb2C nanosheets acted as high-performance photothermal nanoagents, and biocompatible PVP functioned as matrix material to maintain the structure of the needles. The microneedle system exhibited sufficient skin-penetration ability and distinctive dissolution behavior. After being inserted into the skin of the tumor site, it can be dissolved within a short period to release the loaded 2D Nb2C nanosheets. The temperature of the tumor site increased rapidly to almost 70 °C under the irradiation of a 1064 nm laser at a power density of 1 W cm-2, and this could provide sufficient conditions for photonic tumor ablation. After two weeks of treatment, the tumor growth was significantly suppressed, compared to that of the control group, and the survival rate of mice was clearly improved. In addition, the biocompatibility of the microneedle system was tested on mice, in which no significant toxicity or side effects were observed. Therefore, this kind of microneedle system with minimally invasive, safe and effective features is expected to be developed as an intriguing strategy for localized superficial cancer treatment.
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Affiliation(s)
- Shiyang Lin
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, P. R. China.
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43
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Queiroz MLB, Shanmugam S, Santos LNS, Campos CDA, Santos AM, Batista MS, Araújo AADS, Serafini MR. Microneedles as an alternative technology for transdermal drug delivery systems: a patent review. Expert Opin Ther Pat 2020; 30:433-452. [PMID: 32164470 DOI: 10.1080/13543776.2020.1742324] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Introduction: The most conventional drug delivery systems exist with limitations such as drug degradation, toxicity and low bioavailability. Also, hypodermic injections can cause pain, compromising patient compliance. Due to this, transdermal drug delivery systems can minimize several problems associated with conventional drug delivery. The development of microneedle arrays is an approach which allows drug delivery through the skin by improving safety, efficacy, and bioavailability. Hence, several studies have been searching for new ways of treatment using microneedle devices for transdermal drug delivery.Areas covered: All patents were analyzed from European Patent Office and World Intellectual Property Organization databases that reported microneedle arrays using the combined keywords 'microneedle' or 'microneedles' and 'drug delivery systems'. A total of 233 patents were analyzed, out of which 47 selected were microneedle devices for clinical applications.Expert opinion: In past years, there has been a crescent of advances in the development of microneedles as a drug delivery system by researchers and pharmaceutical companies. The authors observed patents related to manufacture of dissolving, hydrogel-forming, solid, hollow, and coated microneedles for ocular and transdermal drug delivery. Finally, the authors noticed patents about new microneedle technologies with potential therapeutic application in several clinical conditions confirmed in clinical tests.
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Affiliation(s)
| | - Saravanan Shanmugam
- Department of Pharmacy, Federal University of Sergipe, São Cristóvão, Brazil
| | - Lana Naiadhy Silva Santos
- Post-graduate Program in Pharmaceuticals Sciences, Federal University of Sergipe, São Cristóvão, Brazil
| | - Caio de Alcântara Campos
- Post-graduate Program in Pharmaceuticals Sciences, Federal University of Sergipe, São Cristóvão, Brazil
| | | | | | - Adriano Antunes de Souza Araújo
- Post-graduate Program in Pharmaceuticals Sciences, Federal University of Sergipe, São Cristóvão, Brazil.,Department of Pharmacy, Federal University of Sergipe, São Cristóvão, Brazil
| | - Mairim Russo Serafini
- Post-graduate Program in Pharmaceuticals Sciences, Federal University of Sergipe, São Cristóvão, Brazil.,Department of Pharmacy, Federal University of Sergipe, São Cristóvão, Brazil
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44
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Microneedle Array Patch (MAP) Consisting of Crosslinked Hyaluronic Acid Nanoparticles for Processability and Sustained Release. Pharm Res 2020; 37:50. [DOI: 10.1007/s11095-020-2768-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 01/21/2020] [Indexed: 10/25/2022]
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45
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Development and clinical study of the use of infrared radiation to accelerate the dissolution rate of a microneedle array patch (MAP). Drug Deliv Transl Res 2020; 10:791-800. [DOI: 10.1007/s13346-020-00710-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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46
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Plamadeala C, Gosain SR, Hischen F, Buchroithner B, Puthukodan S, Jacak J, Bocchino A, Whelan D, O’Mahony C, Baumgartner W, Heitz J. Bio-inspired microneedle design for efficient drug/vaccine coating. Biomed Microdevices 2020; 22:8. [PMID: 31845066 PMCID: PMC6915113 DOI: 10.1007/s10544-019-0456-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Biomimetics is the interdisciplinary scientific field focused on the study and imitation of biological systems, with the aim of solving complex technological problems. In this paper, we present a new bio-inspired design for microneedles (MNs) and MN arrays, intended for rapidly coating the MNs with drug/vaccine. The biomimetic approach consists in ornamenting the lateral sides of pyramidal MNs with structures inspired by the external scent efferent systems of some European true bugs, which facilitate a directional liquid transport. To realize these MNs, two-photon polymerization (TPP) technique was used. Liquid coating capabilities of structured and non-structured MNs were compared. Moreover, both in-vivo and ex-vivo skin tests were performed to prove that MNs pierce the skin. We show that the arrays of MNs can be accurately replicated using a micro-moulding technique. We believe this design will be beneficial for the process of drug/vaccine loading onto the needles' surfaces, by making it more efficient and by reducing the drug/vaccine wastage during MN coating process.
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Affiliation(s)
- Cristina Plamadeala
- Institute of Applied Physics, Johannes Kepler University Linz, 4040, Linz, Austria.
| | - Saransh R. Gosain
- Institute of Applied Physics, Johannes Kepler University Linz, 4040 Linz, Austria
| | - Florian Hischen
- Institute of Biomedical Mechatronics, Johannes Kepler University Linz, 4040 Linz, Austria
| | - Boris Buchroithner
- University of Applied Sciences Upper Austria, Campus Linz, 4020 Linz, Austria
| | - Sujitha Puthukodan
- Institute of Applied Physics, Johannes Kepler University Linz, 4040 Linz, Austria
| | - Jaroslaw Jacak
- University of Applied Sciences Upper Austria, Campus Linz, 4020 Linz, Austria
| | - Andrea Bocchino
- Tyndall National Institute, University College Cork, T12 R5CP Cork, Ireland
| | - Derek Whelan
- Tyndall National Institute, University College Cork, T12 R5CP Cork, Ireland
| | - Conor O’Mahony
- Tyndall National Institute, University College Cork, T12 R5CP Cork, Ireland
| | - Werner Baumgartner
- Institute of Biomedical Mechatronics, Johannes Kepler University Linz, 4040 Linz, Austria
| | - Johannes Heitz
- Institute of Applied Physics, Johannes Kepler University Linz, 4040 Linz, Austria
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47
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Reis TA, Jaculi AE, Ramos KL, Souza PEN, Veiga-Souza FH, Joanitti GA, Azevedo RB, Gratieri T, Cunha-Filho M, Gelfuso GM. Combination of cyclodextrin complexation and iontophoresis as a promising strategy for the cutaneous delivery of aluminum-chloride phthalocyanine in photodynamic therapy. Eur J Pharm Sci 2019; 139:105056. [DOI: 10.1016/j.ejps.2019.105056] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 08/20/2019] [Accepted: 08/21/2019] [Indexed: 11/25/2022]
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48
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Avcil M, Akman G, Klokkers J, Jeong D, Çelik A. Efficacy of bioactive peptides loaded on hyaluronic acid microneedle patches: A monocentric clinical study. J Cosmet Dermatol 2019; 19:328-337. [DOI: 10.1111/jocd.13009] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 05/07/2019] [Accepted: 05/08/2019] [Indexed: 01/07/2023]
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49
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Dissolving Microneedle Systems for the Oral Mucosal Delivery of Triamcinolone Acetonide to Treat Aphthous Stomatitis. Macromol Res 2019. [DOI: 10.1007/s13233-019-7031-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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50
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Flexible two-layer dissolving and safing microneedle transdermal of neurotoxin: A biocomfortable attempt to treat Rheumatoid Arthritis. Int J Pharm 2019; 563:91-100. [DOI: 10.1016/j.ijpharm.2019.03.033] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 03/03/2019] [Accepted: 03/16/2019] [Indexed: 01/21/2023]
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