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Kim TY, De R, Choi I, Kim H, Hahn SK. Multifunctional nanomaterials for smart wearable diabetic healthcare devices. Biomaterials 2024; 310:122630. [PMID: 38815456 DOI: 10.1016/j.biomaterials.2024.122630] [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: 01/11/2024] [Accepted: 05/19/2024] [Indexed: 06/01/2024]
Abstract
Wearable diabetic healthcare devices have attracted great attention for real-time continuous glucose monitoring (CGM) using biofluids such as tears, sweat, saliva, and interstitial fluid via noninvasive ways. In response to the escalating global demand for CGM, these devices enable proactive management and intervention of diabetic patients with incorporated drug delivery systems (DDSs). In this context, multifunctional nanomaterials can trigger the development of innovative sensing and management platforms to facilitate real-time selective glucose monitoring with remarkable sensitivity, on-demand drug delivery, and wireless power and data transmission. The seamless integration into wearable devices ensures patient's compliance. This comprehensive review evaluates the multifaceted roles of these materials in wearable diabetic healthcare devices, comparing their glucose sensing capabilities with conventionally available glucometers and CGM devices, and finally outlines the merits, limitations, and prospects of these devices. This review would serve as a valuable resource, elucidating the intricate functions of nanomaterials for the successful development of advanced wearable devices in diabetes management.
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Affiliation(s)
- Tae Yeon Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
| | - Ranjit De
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
| | - Inhoo Choi
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
| | - Hyemin Kim
- Department of Cosmetics Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, South Korea.
| | - Sei Kwang Hahn
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea.
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2
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Yew PYM, Chee PL, Lin Q, Owh C, Li J, Dou QQ, Loh XJ, Kai D, Zhang Y. Hydrogel for light delivery in biomedical applications. Bioact Mater 2024; 37:407-423. [PMID: 38689660 PMCID: PMC11059474 DOI: 10.1016/j.bioactmat.2024.03.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 03/06/2024] [Accepted: 03/26/2024] [Indexed: 05/02/2024] Open
Abstract
Traditional optical waveguides or mediums are often silica-based materials, but their applications in biomedicine and healthcare are limited due to the poor biocompatibility and unsuitable mechanical properties. In term of the applications in human body, a biocompatible hydrogel system with excellent optical transparency and mechanical flexibility could be beneficial. In this review, we explore the different designs of hydrogel-based optical waveguides derived from natural and synthetic sources. We highlighted key developments such as light emitting contact lenses, implantable optical fibres, biosensing systems, luminating and fluorescent materials. Finally, we expand further on the challenges and perspectives for hydrogel waveguides to achieve clinical applications.
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Affiliation(s)
- Pek Yin Michelle Yew
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, 627833, Singapore
- Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Pei Lin Chee
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, 627833, Singapore
| | - Qianyu Lin
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Singapore
| | - Cally Owh
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Singapore
| | - Jiayi Li
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Singapore
| | - Qing Qing Dou
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Singapore
| | - Dan Kai
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, 627833, Singapore
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Singapore
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Yong Zhang
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, China
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3
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Liu X, Ye Y, Ge Y, Qu J, Liedberg B, Zhang Q, Wang Y. Smart Contact Lenses for Healthcare Monitoring and Therapy. ACS NANO 2024; 18:6817-6844. [PMID: 38407063 DOI: 10.1021/acsnano.3c12072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
The eye contains a wealth of physiological information and offers a suitable environment for noninvasive monitoring of diseases via smart contact lens sensors. Although extensive research efforts recently have been undertaken to develop smart contact lens sensors, they are still in an early stage of being utilized as an intelligent wearable sensing platform for monitoring various biophysical/chemical conditions. In this review, we provide a general introduction to smart contact lenses that have been developed for disease monitoring and therapy. First, different disease biomarkers available from the ocular environment are summarized, including both physical and chemical biomarkers, followed by the commonly used materials, manufacturing processes, and characteristics of contact lenses. Smart contact lenses for eye-drug delivery with advancing technologies to achieve more efficient treatments are then introduced as well as the latest developments for disease diagnosis. Finally, sensor communication technologies and smart contact lenses for antimicrobial and other emerging bioapplications are also discussed as well as the challenges and prospects of the future development of smart contact lenses.
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Affiliation(s)
- Xiaohu Liu
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325001, China
| | - Ying Ye
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325001, China
| | - Yuancai Ge
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325001, China
| | - Jia Qu
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325001, China
| | - Bo Liedberg
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Qingwen Zhang
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325001, China
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
| | - Yi Wang
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325001, China
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
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4
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Wang Z, Zhang N, Lin P, Xing Y, Yang N. Recent advances in the treatment and delivery system of diabetic retinopathy. Front Endocrinol (Lausanne) 2024; 15:1347864. [PMID: 38425757 PMCID: PMC10902204 DOI: 10.3389/fendo.2024.1347864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 01/23/2024] [Indexed: 03/02/2024] Open
Abstract
Diabetic retinopathy (DR) is a highly tissue-specific neurovascular complication of type 1 and type 2 diabetes mellitus and is among the leading causes of blindness worldwide. Pathophysiological changes in DR encompass neurodegeneration, inflammation, and oxidative stress. Current treatments for DR, including anti-vascular endothelial growth factor, steroids, laser photocoagulation, and vitrectomy have limitations and adverse reactions, necessitating the exploration of novel treatment strategies. This review aims to summarize the current pathophysiology, therapeutic approaches, and available drug-delivery methods for treating DR, and discuss their respective development potentials. Recent research indicates the efficacy of novel receptor inhibitors and agonists, such as aldose reductase inhibitors, angiotensin-converting enzyme inhibitors, peroxisome proliferator-activated receptor alpha agonists, and novel drugs in delaying DR. Furthermore, with continuous advancements in nanotechnology, a new form of drug delivery has been developed that can address certain limitations of clinical drug therapy, such as low solubility and poor penetration. This review serves as a theoretical foundation for future research on DR treatment. While highlighting promising therapeutic targets, it underscores the need for continuous exploration to enhance our understanding of DR pathogenesis. The limitations of current treatments and the potential for future advancements emphasize the importance of ongoing research in this field.
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Affiliation(s)
| | | | | | - Yiqiao Xing
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Ning Yang
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
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5
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Liu S, Li D, Yu T, Zhu J, Semyachkina-Glushkovskaya O, Zhu D. Transcranial photobiomodulation improves insulin therapy in diabetic microglial reactivity and the brain drainage system. Commun Biol 2023; 6:1239. [PMID: 38066234 PMCID: PMC10709608 DOI: 10.1038/s42003-023-05630-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
The dysfunction of microglia in the development of diabetes is associated with various diabetic complications, while traditional insulin therapy is insufficient to rapidly restore the function of microglia. Therefore, the search for new alternative methods of treating diabetes-related dysfunction of microglia is urgently needed. Here, we evaluate the effects of transcranial photobiomodulation (tPBM) on microglial function in diabetic mice and investigate its mechanism. We find tPBM treatment effectively improves insulin therapy on microglial morphology and reactivity. We also show that tPBM stimulates brain drainage system through activation of meningeal lymphatics, which contributes to the removal of inflammatory factor, and increase of microglial purinergic receptor P2RY12. Besides, the energy expenditure and locomotor activity of diabetic mice are also improved by tPBM. Our results demonstrate that tPBM can be an efficient, non-invasive method for the treatment of microglial dysfunction caused by diabetes, and also has the potential to prevent diabetic physiological disorders.
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Affiliation(s)
- Shaojun Liu
- Britton Chance Center for Biomedical Photonics-MoE Key Laboratory for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics-Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China
| | - Dongyu Li
- School of Optical Electronic Information-Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China
| | - Tingting Yu
- Britton Chance Center for Biomedical Photonics-MoE Key Laboratory for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics-Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China
| | - Jingtan Zhu
- Britton Chance Center for Biomedical Photonics-MoE Key Laboratory for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics-Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China
| | - Oxana Semyachkina-Glushkovskaya
- Saratov State University, Astrakhanskaya Str. 83, 410012, Saratov, Russia
- Physics Department, Humboldt University, Newtonstrasse 15, 12489, Berlin, Germany
| | - Dan Zhu
- Britton Chance Center for Biomedical Photonics-MoE Key Laboratory for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics-Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China.
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6
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Kim TY, Hong SH, Jeong SH, Bae H, Cheong S, Choi H, Hahn SK. Multifunctional Intelligent Wearable Devices Using Logical Circuits of Monolithic Gold Nanowires. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2303401. [PMID: 37499253 DOI: 10.1002/adma.202303401] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/25/2023] [Indexed: 07/29/2023]
Abstract
Although multifunctional wearable devices have been widely investigated for healthcare systems, augmented/virtual realities, and telemedicines, there are few reports on multiple signal monitoring and logical signal processing by using one single nanomaterial without additional algorithms or rigid application-specific integrated circuit chips. Here, multifunctional intelligent wearable devices are developed using monolithically patterned gold nanowires for both signal monitoring and processing. Gold bulk and hollow nanowires show distinctive electrical properties with high chemical stability and high stretchability. In accordance, the monolithically patterned gold nanowires can be used to fabricate the robust interfaces, programmable sensors, on-demand heating systems, and strain-gated logical circuits. The stretchable sensors show high sensitivity for strain and temperature changes on the skin. Furthermore, the micro-wrinkle structures of gold nanowires exhibit the negative gauge factor, which can be used for strain-gated logical circuits. Taken together, this multifunctional intelligent wearable device would be harnessed as a promising platform for futuristic electronic and biomedical applications.
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Affiliation(s)
- Tae Yeon Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
| | - Sang Hoon Hong
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
| | - Sang Hoon Jeong
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
| | - Hanseo Bae
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
| | - Sunah Cheong
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
| | - Hyunsik Choi
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 10-12, Barcelona, 08028, Spain
| | - Sei Kwang Hahn
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
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7
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Seo H, Chung WG, Kwon YW, Kim S, Hong YM, Park W, Kim E, Lee J, Lee S, Kim M, Lim K, Jeong I, Song H, Park JU. Smart Contact Lenses as Wearable Ophthalmic Devices for Disease Monitoring and Health Management. Chem Rev 2023; 123:11488-11558. [PMID: 37748126 PMCID: PMC10571045 DOI: 10.1021/acs.chemrev.3c00290] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Indexed: 09/27/2023]
Abstract
The eye contains a complex network of physiological information and biomarkers for monitoring disease and managing health, and ocular devices can be used to effectively perform point-of-care diagnosis and disease management. This comprehensive review describes the target biomarkers and various diseases, including ophthalmic diseases, metabolic diseases, and neurological diseases, based on the physiological and anatomical background of the eye. This review also includes the recent technologies utilized in eye-wearable medical devices and the latest trends in wearable ophthalmic devices, specifically smart contact lenses for the purpose of disease management. After introducing other ocular devices such as the retinal prosthesis, we further discuss the current challenges and potential possibilities of smart contact lenses.
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Affiliation(s)
- Hunkyu Seo
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Won Gi Chung
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Yong Won Kwon
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Sumin Kim
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Yeon-Mi Hong
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Wonjung Park
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Enji Kim
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Jakyoung Lee
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Sanghoon Lee
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Moohyun Kim
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Kyeonghee Lim
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Inhea Jeong
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Hayoung Song
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Jang-Ung Park
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
- Department
of Neurosurgery, Yonsei University College
of Medicine, Seoul 03722, Republic of Korea
- Center
for Nanomedicine, Institute for Basic Science (IBS), Yonsei University, Seoul 03722, Republic
of Korea
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8
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Mertz L. Smart Contact Lenses Keep an Eye on Health. IEEE Pulse 2023; 14:20-23. [PMID: 37607160 DOI: 10.1109/mpuls.2023.3294087] [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: 08/24/2023]
Abstract
Contact lenses are ideal conduits for continuous health monitoring. They have a long safety record, and they sit on the eye, where they have access to a range of biological signals. Making the transition from vision correction to biological monitoring, however, requires advances in technological development so the lenses not only detect and report signals accurately, but retain the high level of comfort that users have come to expect.
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9
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Application of Convergent Science and Technology toward Ocular Disease Treatment. Pharmaceuticals (Basel) 2023; 16:ph16030445. [PMID: 36986546 PMCID: PMC10053244 DOI: 10.3390/ph16030445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 03/07/2023] [Accepted: 03/10/2023] [Indexed: 03/19/2023] Open
Abstract
Eyes are one of the main critical organs of the body that provide our brain with the most information about the surrounding environment. Disturbance in the activity of this informational organ, resulting from different ocular diseases, could affect the quality of life, so finding appropriate methods for treating ocular disease has attracted lots of attention. This is especially due to the ineffectiveness of the conventional therapeutic method to deliver drugs into the interior parts of the eye, and the also presence of barriers such as tear film, blood-ocular, and blood-retina barriers. Recently, some novel techniques, such as different types of contact lenses, micro and nanoneedles and in situ gels, have been introduced which can overcome the previously mentioned barriers. These novel techniques could enhance the bioavailability of therapeutic components inside the eyes, deliver them to the posterior side of the eyes, release them in a controlled manner, and reduce the side effects of previous methods (such as eye drops). Accordingly, this review paper aims to summarize some of the evidence on the effectiveness of these new techniques for treating ocular disease, their preclinical and clinical progression, current limitations, and future perspectives.
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Kim TY, Lee GH, Mun J, Cheong S, Choi I, Kim H, Hahn SK. Smart Contact Lens Systems for Ocular Drug Delivery and Therapy. Adv Drug Deliv Rev 2023; 196:114817. [PMID: 37004938 DOI: 10.1016/j.addr.2023.114817] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023]
Abstract
Ocular drug delivery and therapy systems have been extensively investigated with various methods including direct injections, eye drops and contact lenses. Nowadays, smart contact lens systems are attracting a lot of attention for ocular drug delivery and therapy due to their minimally invasive or non-invasive characteristics, highly enhanced drug permeation, high bioavailability, and on-demand drug delivery. Furthermore, smart contact lens systems can be used for direct light delivery into the eyes for biophotonic therapy replacing the use of drugs. Here, we review smart contact lens systems which can be classified into two groups of drug-eluting contact lens and ocular device contact lens. More specifically, this review covers smart contact lens systems with nanocomposite-laden systems, polymeric film-incorporated systems, micro and nanostructure systems, iontophoretic systems, electrochemical systems, and phototherapy systems for ocular drug delivery and therapy. After that, we discuss the future opportunities, challenges and perspectives of smart contact lens systems for ocular drug delivery and therapy.
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Affiliation(s)
- Tae Yeon Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Geon-Hui Lee
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Jonghwan Mun
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Sunah Cheong
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Inhoo Choi
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Hyemin Kim
- Department of Cosmetics Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea.
| | - Sei Kwang Hahn
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea; PHI BIOMED Co., 168 Yeoksam-ro, Gangnamgu, Seoul 06248, Republic of Korea.
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11
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Kim JH, Park S, Ahn J, Pyo J, Kim H, Kim N, Jung ID, Seol SK. Meniscus-Guided Micro-Printing of Prussian Blue for Smart Electrochromic Display. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205588. [PMID: 36442856 PMCID: PMC9875632 DOI: 10.1002/advs.202205588] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/03/2022] [Indexed: 06/16/2023]
Abstract
Using energy-saving electrochromic (EC) displays in smart devices for augmented reality makes cost-effective, easily producible, and efficiently operable devices for specific applications possible. Prussian blue (PB) is a metal-organic coordinated compound with unique EC properties that limit EC display applications due to the difficulty in PB micro-patterning. This work presents a novel micro-printing strategy for PB patterns using localized crystallization of FeFe(CN)6 on a substrate confined by the acidic-ferric-ferricyanide ink meniscus, followed by thermal reduction at 120 °C, thereby forming PB. Uniform PB patterns can be obtained by manipulating printing parameters, such as the concentration of FeCl3 ·K3 Fe(CN)6 , printing speed, and pipette inner diameter. Using a 0.1 M KCl (pH 4) electrolyte, the printed PB pattern is consistently and reversibly converted to Prussian white (CV potential range: -0.2-0.5 V) with 200 CV cycles. The PB-based EC display with a navigation function integrated into a smart contact lens is able to display directions to a destination to a user by receiving GPS coordinates in real time. This facile method for forming PB micro-patterns could be used for advanced EC displays and various functional devices.
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Affiliation(s)
- Je Hyeong Kim
- Smart 3D Printing Research TeamKorea Electrotechnology Research Institute (KERI)Changwon‐siGyeongsangnam‐do51543Republic of Korea
- Electro‐Functional Materials EngineeringUniversity of Science and Technology (UST)Changwon‐siGyeongsangnam‐do51543Republic of Korea
| | - Seobin Park
- Department of Mechanical EngineeringUlsan National Institute of Science and Technology (UNIST)Ulju‐gunUlsangwang‐yeogsi44919Republic of Korea
| | - Jinhyuck Ahn
- Smart 3D Printing Research TeamKorea Electrotechnology Research Institute (KERI)Changwon‐siGyeongsangnam‐do51543Republic of Korea
- Electro‐Functional Materials EngineeringUniversity of Science and Technology (UST)Changwon‐siGyeongsangnam‐do51543Republic of Korea
| | - Jaeyeon Pyo
- Smart 3D Printing Research TeamKorea Electrotechnology Research Institute (KERI)Changwon‐siGyeongsangnam‐do51543Republic of Korea
- Electro‐Functional Materials EngineeringUniversity of Science and Technology (UST)Changwon‐siGyeongsangnam‐do51543Republic of Korea
| | - Hayeol Kim
- Department of Mechanical EngineeringUlsan National Institute of Science and Technology (UNIST)Ulju‐gunUlsangwang‐yeogsi44919Republic of Korea
| | - Namhun Kim
- Department of Mechanical EngineeringUlsan National Institute of Science and Technology (UNIST)Ulju‐gunUlsangwang‐yeogsi44919Republic of Korea
| | - Im Doo Jung
- Department of Mechanical EngineeringUlsan National Institute of Science and Technology (UNIST)Ulju‐gunUlsangwang‐yeogsi44919Republic of Korea
| | - Seung Kwon Seol
- Smart 3D Printing Research TeamKorea Electrotechnology Research Institute (KERI)Changwon‐siGyeongsangnam‐do51543Republic of Korea
- Electro‐Functional Materials EngineeringUniversity of Science and Technology (UST)Changwon‐siGyeongsangnam‐do51543Republic of Korea
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12
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Torun H, Fazla B, Arman S, Ozdalgic B, Yetisen AK, Tasoglu S. Microfluidic contact lenses for ocular diagnostics and drug delivery. NANO SELECT 2022. [DOI: 10.1002/nano.202200202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Hulya Torun
- Graduate School of Sciences and Engineering Koc University Istanbul Turkey
- Koc University Research Center for Translational Medicine Koc University Istanbul Turkey
| | - Bartu Fazla
- Graduate School of Sciences and Engineering Koc University Istanbul Turkey
| | - Samaneh Arman
- Graduate School of Sciences and Engineering Koc University Istanbul Turkey
| | - Berin Ozdalgic
- Koc University Research Center for Translational Medicine Koc University Istanbul Turkey
- Department of Mechanical Engineering, Engineering Faculty Koc University Istanbul Turkey
- Division of Opticianry, The School of Medical Services and Techniques Dogus University Istanbul Turkey
| | - Ali K. Yetisen
- Department of Chemical Engineering Imperial College London London UK
| | - Savas Tasoglu
- Koc University Research Center for Translational Medicine Koc University Istanbul Turkey
- Department of Mechanical Engineering, Engineering Faculty Koc University Istanbul Turkey
- Arcelik Research Center for Creative Industries (KUAR) Koc University Istanbul Turkey
- Institute of Biomedical Engineering Bogazici University Istanbul Turkey
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13
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Kang D, Lee JI, Maeng B, Lee S, Kwon Y, Kang MS, Park J, Kim J. Safe, Durable, and Sustainable Self-Powered Smart Contact Lenses. ACS NANO 2022; 16:15827-15836. [PMID: 36069332 DOI: 10.1021/acsnano.2c05452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Smart contact lenses have the potential to serve as noninvasive healthcare devices or virtual displays. However, their implementation is limited by the lack of suitable power sources for microelectronic devices. This Article demonstrates smart contact lenses with fully embedded glucose fuel cells that are safe, flexible, and durable against deformations. These fuel cells produced stable power throughout the day or during intermittent use after storage for weeks. When the lenses were exposed to 0.05 mM glucose solution, a steady-state maximum power density of 4.4 μW/cm2 was achieved by optimizing the chemistry and porous structure of the fuel cell components. Additionally, even after bending the lenses in half 100 times, the fuel cell performance was maintained without any mechanical failure. Lastly, when the fuel cells were connected to electroresponsive hydrogel capacitors, we could clearly distinguish between the tear glucose levels under normal and diabetic conditions through the naked eye.
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Affiliation(s)
- Dongwon Kang
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Republic of Korea
| | - Jong Ik Lee
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Republic of Korea
| | - Bohee Maeng
- Department of Mechanical Engineering, Sogang University, Seoul 04107, Republic of Korea
| | - Seyeon Lee
- Department of Mechanical Engineering, Sogang University, Seoul 04107, Republic of Korea
| | - Yongseok Kwon
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Moon Sung Kang
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Republic of Korea
- Institute of Emergent Materials, Sogang University, Seoul 04107, Republic of Korea
| | - Jungyul Park
- Department of Mechanical Engineering, Sogang University, Seoul 04107, Republic of Korea
| | - Jungwook Kim
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Republic of Korea
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14
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Song H, Shin H, Seo H, Park W, Joo BJ, Kim J, Kim J, Kim HK, Kim J, Park J. Wireless Non-Invasive Monitoring of Cholesterol Using a Smart Contact Lens. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2203597. [PMID: 35975449 PMCID: PMC9534953 DOI: 10.1002/advs.202203597] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/02/2022] [Indexed: 06/15/2023]
Abstract
Herein, a wireless and soft smart contact lens that enables real-time quantitative recording of cholesterol in tear fluids for the monitoring of patients with hyperlipidemia using a smartphone is reported. This contact lens incorporates an electrochemical biosensor for the continuous detection of cholesterol concentrations, stretchable antenna, and integrated circuits for wireless communication, which makes a smartphone the only device required to operate this lens remotely without obstructing the wearer's vision. The hyperlipidemia rabbit model is utilized to confirm the correlation between cholesterol levels in tear fluid and blood and to confirm the feasibility of this smart contact lens for diagnostic application of cholesterol-related diseases. Further in vivo tests with human subjects demonstrated its good biocompatibility, wearability, and reliability as a non-invasive healthcare device.
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Affiliation(s)
- Hayoung Song
- Department of Materials Science and EngineeringCenter for Nanomedicine Institute for Basic Science (IBS)Yonsei UniversitySeoul03722Republic of Korea
| | - Haein Shin
- Department of Materials Science and EngineeringCenter for Nanomedicine Institute for Basic Science (IBS)Yonsei UniversitySeoul03722Republic of Korea
| | - Hunkyu Seo
- Department of Materials Science and EngineeringCenter for Nanomedicine Institute for Basic Science (IBS)Yonsei UniversitySeoul03722Republic of Korea
| | - Wonjung Park
- Department of Materials Science and EngineeringCenter for Nanomedicine Institute for Basic Science (IBS)Yonsei UniversitySeoul03722Republic of Korea
| | - Byung Jun Joo
- Department of Materials Science and EngineeringCenter for Nanomedicine Institute for Basic Science (IBS)Yonsei UniversitySeoul03722Republic of Korea
| | - Jeongho Kim
- Department of Biomedical ScienceThe Graduate SchoolKyungpook National University680 Gukchebosang‐ro, Jung‐guDaegu41944Republic of Korea
| | - Jeonghyun Kim
- Department of Electronics Convergence EngineeringKwangwoon UniversitySeoul01897Republic of Korea
| | - Hong Kyun Kim
- Department of Biomedical ScienceThe Graduate SchoolKyungpook National University680 Gukchebosang‐ro, Jung‐guDaegu41944Republic of Korea
- Department of OphthalmologyBio‐Medical InstituteSchool of MedicineKyungpook National University Hospital130 Dongdeok‐ro, Jung‐guDaegu41944Republic of Korea
| | - Jayoung Kim
- Department of Medical EngineeringCollege of MedicineYonsei UniversitySeoul03722Republic of Korea
| | - Jang‐Ung Park
- Department of Materials Science and EngineeringCenter for Nanomedicine Institute for Basic Science (IBS)Yonsei UniversitySeoul03722Republic of Korea
- KIURI InstituteYonsei UniversitySeoul03722Republic of Korea
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15
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Chen Z, Chen B, Hu P, Liu H, Zheng D. A preliminary observation on rod cell photobiomodulation in treating diabetic macular edema. ADVANCES IN OPHTHALMOLOGY PRACTICE AND RESEARCH 2022; 2:100051. [PMID: 37846386 PMCID: PMC10577862 DOI: 10.1016/j.aopr.2022.100051] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 03/25/2022] [Accepted: 04/21/2022] [Indexed: 10/18/2023]
Abstract
Purpose To evaluate the safety and effectiveness of photobiomodulation (PBM) in the treatment of diabetic macular edema (DME). Methods It was a single-center, self-controlled prospective study. The clinical records of 12 diabetic retinopathy patients (5 males and 7 females, 20 eyes in total) who were treated with PBM for DME at the Second Affiliated Hospital, Zhejiang University School of Medicine, were analyzed. The mean age was 56 (26-68) years. All the participants received PBM treatment during darkness at night in no less than 5 days per week and no less than 8 h per day. In the baseline check and follow-up checks (1, 2, 6, 10, and 12 months after the start of treatment), the best-corrected visual acuity, the thickness of the retina in the macula, and the changes of the fundus lesions were observed. Wilcoxon signed rank test was used to compare the results before and after treatment. P < 0.05 was considered statistically significant. Results No fundus complication was observed during follow-up checks. In baseline and 12-month follow-up checks, the best-corrected visual acuity was 71.75 ± 12.47 and 79.50 ± 10.85, maximal retinal thickness in macular area was 390.95 ± 77.12 μm and 354.13 ± 55.03 μm, average retinal thickness in macular area was 334.25 ± 36.45 μm and 314.31 ± 33.28 μm, foveal thickness was 287.00 ± 46.79 μm and 265.63 ± 67.14 μm. The best-corrected visual acuity, average retinal thickness in macular area in consecutive follow-up results except that in the 1st month showed significant difference compared with baseline results. There were significant difference between every follow-up result and baseline result of maximal retinal thickness in macular area (P < 0.05). All follow-up results of foveal thickness were not significantly different (P > 0.05) from the baseline result, except that in the 6th month (P = 0.049). Obvious improvement could be observed in retinal fundus fluorescein angiography images. Conclusions PBM is a safe and effective treatment of DME, which deserves further investigation.
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Affiliation(s)
- Zhiqing Chen
- Eye Centre, The Second Affiliated Hospital of the School of Medicine, Zhejiang University, Hangzhou, China
| | - Binbin Chen
- Eye Centre, The Second Affiliated Hospital of the School of Medicine, Zhejiang University, Hangzhou, China
| | - Peike Hu
- Eye Centre, The Second Affiliated Hospital of the School of Medicine, Zhejiang University, Hangzhou, China
| | - Haipeng Liu
- Research Centre for Intelligent Healthcare, University of Coventry, Coventry, UK
| | - Dingchang Zheng
- Research Centre for Intelligent Healthcare, University of Coventry, Coventry, UK
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16
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Zhang H, Peng Y, Zhang N, Yang J, Wang Y, Ding H. Emerging Optoelectronic Devices Based on Microscale LEDs and Their Use as Implantable Biomedical Applications. MICROMACHINES 2022; 13:mi13071069. [PMID: 35888886 PMCID: PMC9323269 DOI: 10.3390/mi13071069] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/27/2022] [Accepted: 06/29/2022] [Indexed: 02/05/2023]
Abstract
Thin-film microscale light-emitting diodes (LEDs) are efficient light sources and their integrated applications offer robust capabilities and potential strategies in biomedical science. By leveraging innovations in the design of optoelectronic semiconductor structures, advanced fabrication techniques, biocompatible encapsulation, remote control circuits, wireless power supply strategies, etc., these emerging applications provide implantable probes that differ from conventional tethering techniques such as optical fibers. This review introduces the recent advancements of thin-film microscale LEDs for biomedical applications, covering the device lift-off and transfer printing fabrication processes and the representative biomedical applications for light stimulation, therapy, and photometric biosensing. Wireless power delivery systems have been outlined and discussed to facilitate the operation of implantable probes. With such wireless, battery-free, and minimally invasive implantable light-source probes, these biomedical applications offer excellent opportunities and instruments for both biomedical sciences research and clinical diagnosis and therapy.
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Affiliation(s)
- Haijian Zhang
- Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China; (H.Z.); (Y.P.); (J.Y.); (Y.W.)
| | - Yanxiu Peng
- Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China; (H.Z.); (Y.P.); (J.Y.); (Y.W.)
| | - Nuohan Zhang
- GMA Optoelectronic Technology Limited, Xinyang 464000, China;
| | - Jian Yang
- Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China; (H.Z.); (Y.P.); (J.Y.); (Y.W.)
| | - Yongtian Wang
- Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China; (H.Z.); (Y.P.); (J.Y.); (Y.W.)
| | - He Ding
- Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China; (H.Z.); (Y.P.); (J.Y.); (Y.W.)
- Correspondence:
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17
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Optogenetic technologies in translational cancer research. Biotechnol Adv 2022; 60:108005. [PMID: 35690273 DOI: 10.1016/j.biotechadv.2022.108005] [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: 01/17/2022] [Revised: 05/07/2022] [Accepted: 06/04/2022] [Indexed: 11/23/2022]
Abstract
Gene and cell therapies are widely recognized as future cancer therapeutics but poor controllability limits their clinical applications. Optogenetics, the use of light-controlled proteins to precisely spatiotemporally regulate the activity of genes and cells, opens up new possibilities for cancer treatment. Light of specific wavelength can activate the immune response, oncolytic activity and modulate cell signaling in tumor cells non-invasively, in dosed manner, with tissue confined action and without side effects of conventional therapies. Here, we review optogenetic approaches in cancer research, their clinical potential and challenges of incorporating optogenetics in cancer therapy. We critically discuss beneficial combinations of optogenetic technologies with therapeutic nanobodies, T-cell activation and CAR-T cell approaches, genome editors and oncolytic viruses. We consider viral vectors and nanoparticles for delivering optogenetic payloads and activating light to tumors. Finally, we highlight herein the prospects for integrating optogenetics into immunotherapy as a novel, fast, reversible and safe approach to cancer treatment.
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