1
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George RE, Bay CC, Thornton SM, Knazze JT, Kane NC, Donnelly AT, Ludwig KA, Poore SO, Dingle AM. Can Electrical Stimulation Prevent Recurrence of Keloid Scars: A Scoping Review. Adv Wound Care (New Rochelle) 2024. [PMID: 38888004 DOI: 10.1089/wound.2023.0203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024] Open
Abstract
OBJECTIVE Keloids represent a symptomatic, aberrant healing process that is difficult to treat with high recurrence rates spanning from 55-100% if treated via excision without adjuvant therapy. Electrical stimulation (ES) has demonstrated findings that suggest it could reduce the recurrence rate of keloids after resection. Therefore, the aim of this study is to conduct a scoping review to investigate ES as an adjuvant therapy for decreasing keloid recurrence after excision. APPROACH A scoping review was performed using PubMed and Web of Science databases. The search strategy encompassed terms linking keloids and various aspects of electrical stimulation. RESULTS Our search yielded 2229 articles. 115 articles were analyzed as full text. 1 article met inclusion criteria. Despite this, ES has demonstrated other evidence that suggests its utility. ES has been shown to counter keloidic features by reducing mast cell counts, shifting wound composition from M2 to M1 macrophages, promoting angiogenesis, and, controlling fibroblast orientation and location. An alternating current will orient fibroblasts perpendicular to the current without unintended migration. INNOVATION Our study indicates that, based on a compilation of clinical and preclinical in vitro data, the optimal scenario for ES in the role of keloid treatment is after excision with a biphasic pulsed application and square waveform. CONCLUSIONS ES could serve as a multifaceted, adjuvant treatment after keloid excision, steering the healing process away from keloid-associated characteristics. Its cost-effectiveness means it could be adopted globally, providing a strategy to mitigate the burden of keloids irrespective of other available treatments or economic conditions.
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Affiliation(s)
- Robert Edward George
- University of Wisconsin, Plastic Surgery, 600 Highland Avenue, Madison, Wisconsin, United States, 53792;
| | - Caroline C Bay
- University of Wisconsin-Madison, Division of Plastic and Reconstructive Surgery, Madison, Wisconsin, United States;
| | - Sarah M Thornton
- University of Wisconsin-Madison, Division of Plastic and Reconstructive Surgery, Madison, Wisconsin, United States;
| | - Jessieka T Knazze
- University of Wisconsin-Madison, Division of Plastic and Reconstructive Surgery, Madison, Wisconsin, United States;
| | - Nicole C Kane
- University of Wisconsin-Madison, Division of Plastic and Reconstructive Surgery, Madison, Wisconsin, United States;
| | - Andrea T Donnelly
- University of Wisconsin-Madison, Division of Plastic and Reconstructive Surgery, Madison, Wisconsin, United States;
| | - Kip Allan Ludwig
- University of Wisconsin-Madison, Division of Plastic and Reconstructive Surgery, Madison, Wisconsin, United States
- University of Wisconsin-Madison, Department of Neurological Surgery, Madison, Wisconsin, United States
- Wisconsin Institute for Translational Neuroengineering, Madison, Wisconsin, United States;
| | - Samuel Oliver Poore
- University of Wisconsin-Madison, Division of Plastic and Reconstructive Surgery, Madison, Wisconsin, United States;
| | - Aaron M Dingle
- University of Wisconsin-Madison, Division of Plastic and Reconstructive Surgery, Madison, Wisconsin, United States;
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2
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Kang M, Yum HY, Kim HT, Park BJ, Cho DS, Choi Y, Kim HJ, Cho Y, Kim YJ, Lee DM, Lee DG, Song HC, Nam SH, Lee JH, Choi BO, Kim SW. Self-Powered Electrical Bandage Based on Body-Coupled Energy Harvesting. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2402491. [PMID: 38837481 DOI: 10.1002/adma.202402491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 05/06/2024] [Indexed: 06/07/2024]
Abstract
Self-powered electrical bandages (SEBs), integrated with wearable energy harvesters, can provide an effective and autonomous electrical stimulation (ES) solution for rapid and scarless wound healing. A continuously operating, wireless, and applicable-to-comprehensive-wound ES device is essential for the quick restoration of wounds and convenience. This work illustrates a SEB powered by body-coupled energy harvesting. The SEB continuously treats the wound with 60-Hz sinusoidal electrical potential gained from the coupling of the human body and ambient electrical waves. It is demonstrated that enough level of electrical potential can be applied to the wound, further enhanced by strong capacitive coupling arising from the use of high-permittivity poly(vinylidene fluoride-trifluoroethylene):CaCu3Ti4O12 (P(VDF-TrFE):CCTO) nanocomposite. The potential clinical efficacy of the SEB is illustrated by preclinical analysis of human fibroblasts and mouse wound model, thus confirming the successful expedition of wound recovery. This work suggests a new class of wearable devices to provide ES events and its potential for extension to other conventional wound care materials and device technology.
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Affiliation(s)
- Minki Kang
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Han-Yup Yum
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Hyoung Taek Kim
- Department of Research and Development, SEMS Co. Ltd, Suwon, 16229, Republic of Korea
| | - Byung-Joon Park
- Department of Materials Science and Engineering, Center for Human-oriented Triboelectric Energy Harvesting, Yonsei University, Seoul, 03722, Republic of Korea
| | - Daniel Sanghyun Cho
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - YoungHwan Choi
- Department of Dermatology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06355, Republic of Korea
- Samsung Advanced Institute for Health Sciences & Technology, Sungkyunkwan University, Seoul, 06355, Republic of Korea
| | - Hye Jin Kim
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06355, Republic of Korea
| | - Youngmin Cho
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Young-Jun Kim
- Advanced Functional Polymers Center, Korea Research Institute of Chemical Technology, Daejeon, 34114, Republic of Korea
| | - Dong-Min Lee
- Department of Materials Science and Engineering, Center for Human-oriented Triboelectric Energy Harvesting, Yonsei University, Seoul, 03722, Republic of Korea
| | - Dong-Gyu Lee
- Electronic Materials Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Hyun-Cheol Song
- Electronic Materials Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- KIST-SKKU Carbon-Neutral Research Center, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Soo Hyun Nam
- Cell and Gene Therapy Institute, Samsung Medical Center, Seoul, 06351, Republic of Korea
| | - Jong Hee Lee
- Department of Dermatology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06355, Republic of Korea
- Samsung Advanced Institute for Health Sciences & Technology, Sungkyunkwan University, Seoul, 06355, Republic of Korea
| | - Byung-Ok Choi
- Samsung Advanced Institute for Health Sciences & Technology, Sungkyunkwan University, Seoul, 06355, Republic of Korea
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06355, Republic of Korea
- Cell and Gene Therapy Institute, Samsung Medical Center, Seoul, 06351, Republic of Korea
| | - Sang-Woo Kim
- Department of Materials Science and Engineering, Center for Human-oriented Triboelectric Energy Harvesting, Yonsei University, Seoul, 03722, Republic of Korea
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3
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Nain A, Chakraborty S, Barman SR, Gavit P, Indrakumar S, Agrawal A, Lin ZH, Chatterjee K. Progress in the development of piezoelectric biomaterials for tissue remodeling. Biomaterials 2024; 307:122528. [PMID: 38522326 DOI: 10.1016/j.biomaterials.2024.122528] [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: 11/02/2023] [Revised: 02/15/2024] [Accepted: 03/08/2024] [Indexed: 03/26/2024]
Abstract
Piezoelectric biomaterials have demonstrated significant potential in the past few decades to heal damaged tissue and restore cellular functionalities. Herein, we discuss the role of bioelectricity in tissue remodeling and explore ways to mimic such tissue-like properties in synthetic biomaterials. In the past decade, biomedical engineers have adopted emerging functional biomaterials-based tissue engineering approaches using innovative bioelectronic stimulation protocols based on dynamic stimuli to direct cellular activation, proliferation, and differentiation on engineered biomaterial constructs. The primary focus of this review is to discuss the concepts of piezoelectric energy harvesting, piezoelectric materials, and their application in soft (skin and neural) and hard (dental and bone) tissue regeneration. While discussing the prospective applications as an engineered tissue, an important distinction has been made between piezoceramics, piezopolymers, and their composites. The superiority of piezopolymers over piezoceramics to circumvent issues such as stiffness mismatch, biocompatibility, and biodegradability are highlighted. We aim to provide a comprehensive review of the field and identify opportunities for the future to develop clinically relevant and state-of-the-art biomaterials for personalized and remote health care.
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Affiliation(s)
- Amit Nain
- Department of Material Engineering, Indian Institute of Science, Bangalore, 560012, Karnataka, India.
| | - Srishti Chakraborty
- Department of Material Engineering, Indian Institute of Science, Bangalore, 560012, Karnataka, India
| | - Snigdha Roy Barman
- Department of Bioengineering, Indian Institute of Science, Bangalore, 560012, Karnataka, India
| | - Pratik Gavit
- Department of Material Engineering, Indian Institute of Science, Bangalore, 560012, Karnataka, India; School of Bio Science and Technology, Vellore Institute of Technology, Vellore, 632014, India
| | - Sushma Indrakumar
- Department of Material Engineering, Indian Institute of Science, Bangalore, 560012, Karnataka, India
| | - Akhilesh Agrawal
- Department of Material Engineering, Indian Institute of Science, Bangalore, 560012, Karnataka, India
| | - Zong-Hong Lin
- Department of Biomedical Engineering, National Taiwan University, Taipe, 10617, Taiwan.
| | - Kaushik Chatterjee
- Department of Material Engineering, Indian Institute of Science, Bangalore, 560012, Karnataka, India; Department of Bioengineering, Indian Institute of Science, Bangalore, 560012, Karnataka, India.
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4
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Bedja-Iacona L, Scorretti R, Ducrot M, Vollaire C, Franqueville L. Pulsed electromagnetic fields used in regenerative medicine: An in vitro study of the skin wound healing proliferative phase. Bioelectromagnetics 2024. [PMID: 38807301 DOI: 10.1002/bem.22508] [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: 02/20/2023] [Revised: 03/14/2024] [Accepted: 04/23/2024] [Indexed: 05/30/2024]
Abstract
Numerous studies have demonstrated the efficacy of extremely low frequency-pulsed electromagnetic fields (ELF-PEMF) in accelerating the wound healing process in vitro and in vivo. Our study focuses specifically on ELF-PEMF applied with the Magnomega® device and aims to assess their effect during the main stages of the proliferative phase of dermal wound closure, in vitro. Thus, after the characterization of the EMFs delivered by the Magnomega® unit, primary culture of human dermal fibroblasts (HDFs) were exposed, or not for the control culture, to 10-12 and 100 Hz ELF-PEMF. These parameters are used in clinical practice by physiotherapists in order to enhance healing of dermal lesions in patients. HDFs proliferation was first assessed and revealed an increase in the expression of one of the two genetic markers of cell proliferation tested (PCNA and MKI67), after initial exposure of the cells to 10-12 Hz PEMF. Next, migration of HDFs was investigated by performing scratch assays on HDF layers. The observed wound closure kinetics corroborate the early organization of actin stress fibers that was revealed in the cytoplasm of HDFs exposed to 100 Hz ELF-PEMF. Also, maturation of HDFs into myofibroblasts was significantly increased in cells exposed to 10-12 or to 100 Hz PEMF. The present study is the first to demonstrate, in vitro, an early stimulation of HDFs, after their exposure to ELF-PEMF delivered by the Magnomega® device, which could contribute to an acceleration of the wound healing process.
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Affiliation(s)
- Léa Bedja-Iacona
- Ecole Centrale de Lyon, INSA Lyon, Universite Claude Bernard Lyon 1, CNRS, Ampère, UMR5005, Ecully, France
| | - Riccardo Scorretti
- Ecole Centrale de Lyon, INSA Lyon, Universite Claude Bernard Lyon 1, CNRS, Ampère, UMR5005, Ecully, France
- Department of Engineering, University of Perugia, Perugia, Italy
| | - Marie Ducrot
- Ecole Centrale de Lyon, INSA Lyon, Universite Claude Bernard Lyon 1, CNRS, Ampère, UMR5005, Ecully, France
| | - Christian Vollaire
- Ecole Centrale de Lyon, INSA Lyon, Universite Claude Bernard Lyon 1, CNRS, Ampère, UMR5005, Ecully, France
| | - Laure Franqueville
- Ecole Centrale de Lyon, INSA Lyon, Universite Claude Bernard Lyon 1, CNRS, Ampère, UMR5005, Ecully, France
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5
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Lim PLK, Balakrishnan Y, Goh G, Tham KC, Ng YZ, Lunny DP, Leavesley DI, Bonnard C. Automated Electrical Stimulation Therapy Accelerates Re-Epithelialization in a Three-Dimensional In Vitro Human Skin Wound Model. Adv Wound Care (New Rochelle) 2024; 13:217-234. [PMID: 38062745 DOI: 10.1089/wound.2023.0018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024] Open
Affiliation(s)
- Priscilla L K Lim
- Model Development, A*STAR Skin Research Labs (A*SRL), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Yamini Balakrishnan
- Model Development, A*STAR Skin Research Labs (A*SRL), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Gracia Goh
- Model Development, A*STAR Skin Research Labs (A*SRL), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Khek-Chian Tham
- Model Development, A*STAR Skin Research Labs (A*SRL), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Yi Zhen Ng
- Tissue Technologies, Skin Research Institute of Singapore (SRIS), A*STAR, Singapore, Republic of Singapore
| | - Declan P Lunny
- Model Development, A*STAR Skin Research Labs (A*SRL), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
- Asian Skin Biobank, Skin Research Institute of Singapore (SRIS), A*STAR, Singapore, Republic of Singapore
| | - David I Leavesley
- Tissue Technologies, Skin Research Institute of Singapore (SRIS), A*STAR, Singapore, Republic of Singapore
| | - Carine Bonnard
- Model Development, A*STAR Skin Research Labs (A*SRL), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
- Asian Skin Biobank, Skin Research Institute of Singapore (SRIS), A*STAR, Singapore, Republic of Singapore
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6
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Dai J, Shao J, Zhang Y, Hang R, Yao X, Bai L, Hang R. Piezoelectric dressings for advanced wound healing. J Mater Chem B 2024; 12:1973-1990. [PMID: 38305583 DOI: 10.1039/d3tb02492j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
The treatment of chronic refractory wounds poses significant challenges and threats to both human society and the economy. Existing research studies demonstrate that electrical stimulation fosters cell proliferation and migration and promotes the production of cytokines that expedites the wound healing process. Presently, clinical settings utilize electrical stimulation devices for wound treatment, but these devices often present issues such as limited portability and the necessity for frequent recharging. A cutting-edge wound dressing employing the piezoelectric effect could transform mechanical energy into electrical energy, thereby providing continuous electrical stimulation and accelerating wound healing, effectively addressing these concerns. This review primarily reviews the selection of piezoelectric materials and their application in wound dressing design, offering a succinct overview of these materials and their underlying mechanisms. This study also provides a perspective on the current limitations of piezoelectric wound dressings and the future development of multifunctional dressings harnessing the piezoelectric effect.
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Affiliation(s)
- Jinjun Dai
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China.
| | - Jin Shao
- Taikang Bybo Dental, Zhuhai, 519100, China
| | - Yi Zhang
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China.
| | - Ruiyue Hang
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China.
| | - Xiaohong Yao
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China.
| | - Long Bai
- Institute of Translational Medicine, Shanghai University, Shanghai, 200444, China.
| | - Ruiqiang Hang
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China.
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7
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Urabe H, Akimoto R, Kamiya S, Hosoki K, Ichikawa H, Nishiyama T. Pulsed electrical stimulation and amino acid derivatives promote collagen gene expression in human dermal fibroblasts. Cytotechnology 2024; 76:139-151. [PMID: 38304625 PMCID: PMC10828296 DOI: 10.1007/s10616-023-00604-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 10/19/2023] [Indexed: 02/03/2024] Open
Abstract
Several collagen types are important for maintaining skin structure and function. Previous reports show that l-hydroxyproline (Hyp), N-acetyl-l-hydroxyproline (AHyp), and l-alanyl-l-glutamine (Aln-Gln) are biological active substances with collagen synthesis-promoting effects. In this study, we combined the promotive effects of pulsed electrical stimulation (PES) with three amino acid derivatives in human dermal fibroblasts. Fibroblasts were exposed to PES with a 4,800 Hz pulse frequency and a voltage at 1 or 5 V for 15 min. The gene expression of type I and III collagen (fibrillar collagen), type IV and VII collagen (basement membrane collagen and anchoring fibril collagen) were measured by RT-PCR 48 h after PES. PES alone promoted the expression of COL1A1 and COL3A1 at 5 V but did not alter that of COL4A1 and COL7A1. Each AAD and the AAD mixture promoted the expression of COL4A1 and COL7A1 but either repressed, or did not alter, that of COL1A1 and COL3A1. Compared to treatment with each AAD, PES at 5 V with Hyp promoted the expression of COL1A1 and COL3A1, enhanced COL3A1 expression with AHyp, and stimulated COL3A1 expression with Aln-Gln, while COL4A1 and COL7A1 expressions were not affected. PES and the AAD mixture significantly promoted COL4A1 expression in a voltage-dependent manner, and COL1A1 and COL3A1 demonstrated a similar but nonsignificant trend, whereas COL7A1 expression was not affected. The combination of PES with each AAD or the AAD mixture may improve skin structure and function by increasing the expression of basement membrane collagen and dermal fibrillar collagen.
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Affiliation(s)
- Hiroya Urabe
- Homer Ion Laboratory Co., Ltd, 17-2 Shinsen-cho, Shibuya-ku, Tokyo, 150-0045 Japan
| | - Ryuji Akimoto
- Homer Ion Laboratory Co., Ltd, 17-2 Shinsen-cho, Shibuya-ku, Tokyo, 150-0045 Japan
| | - Shohei Kamiya
- Homer Ion Laboratory Co., Ltd, 17-2 Shinsen-cho, Shibuya-ku, Tokyo, 150-0045 Japan
| | - Katsu Hosoki
- Homer Ion Laboratory Co., Ltd, 17-2 Shinsen-cho, Shibuya-ku, Tokyo, 150-0045 Japan
| | - Hideyuki Ichikawa
- Homer Ion Laboratory Co., Ltd, 17-2 Shinsen-cho, Shibuya-ku, Tokyo, 150-0045 Japan
| | - Toshio Nishiyama
- Homer Ion Laboratory Co., Ltd, 17-2 Shinsen-cho, Shibuya-ku, Tokyo, 150-0045 Japan
- Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509 Japan
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8
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Drapal V, Mosier S, Norman A, Berbel G, Robinson JL, Friis EA. A preliminary In Vitro viability study of an electrically active hernia mesh on mouse fibroblasts. J Biomater Appl 2023; 38:662-669. [PMID: 37862784 PMCID: PMC11181991 DOI: 10.1177/08853282231209312] [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] [Indexed: 10/22/2023]
Abstract
Hernias occur when part of an organ, typically the intestines, protrudes through a disruption of the fascia in the abdominal wall, leading to patient pain, discomfort, and surgical intervention. Over one million hernia repair surgeries occur annually in the USA, but globally, hernia surgeries can exceed 20 million. Standard practice includes hernia repair mesh to help hold the compromised tissue together, depending on where the fascial disruption is located and the patient's condition. However, the recurrence rate for hernias after using the most common type of hernia mesh, synthetic, is currently high. Physiological-level electrical stimulation (ES) has shown beneficial effects in improving healing in soft tissue regeneration. Piezoelectric materials can produce low-level electrical signals from mechanical loading to help speed healing. Combining the novelty of piezo elements to create an electrically active hernia repair mesh for faster healing prospects is explored in this study through simulated transcutaneous mechanical loading of the piezo element with therapeutic ultrasound. A tissue phantom was developed using Gelatin #0 and Metamucil® to better simulate a clinical application of the therapeutic ultrasound loading modality. The cellular viability of varying ultrasound intensities and temporal effects was analyzed. Overall, minimal cytotoxicity was observed across all experimental groups during the ultrasound intensity and temporal viability studies.
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Affiliation(s)
- Victoria Drapal
- University of Kansas, Bioengineering Program, Lawrence, KS, USA
| | - Savannah Mosier
- University of Kansas, Bioengineering Program, Lawrence, KS, USA
| | - Anna Norman
- University of Kansas, Bioengineering Program, Lawrence, KS, USA
| | - German Berbel
- Department of Surgery, University of Kansas Medical Center, Kansas City, Kansas
| | - Jennifer L. Robinson
- University of Washington, Department of Orthopaedics and Sports Medicine
- University of Washington, Department of Mechanical Engineering
| | - Elizabeth A. Friis
- University of Kansas, Bioengineering Program, Lawrence, KS, USA
- University of Kansas, Department of Mechanical Engineering, Lawrence, KS, USA
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9
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Leal J, Shaner S, Jedrusik N, Savelyeva A, Asplund M. Electrotaxis evokes directional separation of co-cultured keratinocytes and fibroblasts. Sci Rep 2023; 13:11444. [PMID: 37454232 PMCID: PMC10349865 DOI: 10.1038/s41598-023-38664-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023] Open
Abstract
Bioelectric communication plays a significant role in several cellular processes and biological mechanisms, such as division, differentiation, migration, cancer metastasis, and wound healing. Ion flow across cellular walls leads to potential gradients and subsequent formation of constant or time-varying electric fields(EFs), which regulate cellular processes. An EF is natively generated towards the wound center during epithelial wound healing, aiming to align and guide cell migration, particularly of macrophages, fibroblasts, and keratinocytes. While this phenomenon, known as electrotaxis or galvanotaxis, has been extensively investigated across many cell types, it is typically explored one cell type at a time, which does not accurately represent cellular interactions during complex biological processes. Here we show the co-cultured electrotaxis of epidermal keratinocytes and dermal fibroblasts with a salt-bridgeless microfluidic approach for the first time. The electrotactic response of these cells was first assessed in mono-culture to establish a baseline, resulting in the characteristic cathodic migration for keratinocytes and anodic for fibroblasts. Both cell types retained their electrotactic properties in co-culture leading to clear cellular partition even in the presence of cellular collisions. The methods leveraged here pave the way for future co-culture electrotaxis experiments where the concurrent influence of cell types can be thoroughly investigated.
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Affiliation(s)
- José Leal
- Department of Microsystems Engineering (IMTEK), University of Freiburg, Freiburg, Germany.
- BrainLinks-BrainTools Center, University of Freiburg, Freiburg, Germany.
| | - Sebastian Shaner
- Department of Microsystems Engineering (IMTEK), University of Freiburg, Freiburg, Germany
- BrainLinks-BrainTools Center, University of Freiburg, Freiburg, Germany
| | - Nicole Jedrusik
- Department of Microsystems Engineering (IMTEK), University of Freiburg, Freiburg, Germany
- BrainLinks-BrainTools Center, University of Freiburg, Freiburg, Germany
| | - Anna Savelyeva
- Department of Microsystems Engineering (IMTEK), University of Freiburg, Freiburg, Germany
- BrainLinks-BrainTools Center, University of Freiburg, Freiburg, Germany
| | - Maria Asplund
- Department of Microsystems Engineering (IMTEK), University of Freiburg, Freiburg, Germany.
- BrainLinks-BrainTools Center, University of Freiburg, Freiburg, Germany.
- Freiburg Institute for Advanced Studies (FRIAS), University of Freiburg, Freiburg, Germany.
- Department of Microtechnology and Nanoscience, Chalmers University of Technology, Gothenburg, Sweden.
- Division of Nursing and Medical Technology, Luleå University of Technology, 97187, Luleå, Sweden.
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10
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Choi D, Lee Y, Lin ZH, Cho S, Kim M, Ao CK, Soh S, Sohn C, Jeong CK, Lee J, Lee M, Lee S, Ryu J, Parashar P, Cho Y, Ahn J, Kim ID, Jiang F, Lee PS, Khandelwal G, Kim SJ, Kim HS, Song HC, Kim M, Nah J, Kim W, Menge HG, Park YT, Xu W, Hao J, Park H, Lee JH, Lee DM, Kim SW, Park JY, Zhang H, Zi Y, Guo R, Cheng J, Yang Z, Xie Y, Lee S, Chung J, Oh IK, Kim JS, Cheng T, Gao Q, Cheng G, Gu G, Shim M, Jung J, Yun C, Zhang C, Liu G, Chen Y, Kim S, Chen X, Hu J, Pu X, Guo ZH, Wang X, Chen J, Xiao X, Xie X, Jarin M, Zhang H, Lai YC, He T, Kim H, Park I, Ahn J, Huynh ND, Yang Y, Wang ZL, Baik JM, Choi D. Recent Advances in Triboelectric Nanogenerators: From Technological Progress to Commercial Applications. ACS NANO 2023; 17:11087-11219. [PMID: 37219021 PMCID: PMC10312207 DOI: 10.1021/acsnano.2c12458] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/20/2023] [Indexed: 05/24/2023]
Abstract
Serious climate changes and energy-related environmental problems are currently critical issues in the world. In order to reduce carbon emissions and save our environment, renewable energy harvesting technologies will serve as a key solution in the near future. Among them, triboelectric nanogenerators (TENGs), which is one of the most promising mechanical energy harvesters by means of contact electrification phenomenon, are explosively developing due to abundant wasting mechanical energy sources and a number of superior advantages in a wide availability and selection of materials, relatively simple device configurations, and low-cost processing. Significant experimental and theoretical efforts have been achieved toward understanding fundamental behaviors and a wide range of demonstrations since its report in 2012. As a result, considerable technological advancement has been exhibited and it advances the timeline of achievement in the proposed roadmap. Now, the technology has reached the stage of prototype development with verification of performance beyond the lab scale environment toward its commercialization. In this review, distinguished authors in the world worked together to summarize the state of the art in theory, materials, devices, systems, circuits, and applications in TENG fields. The great research achievements of researchers in this field around the world over the past decade are expected to play a major role in coming to fruition of unexpectedly accelerated technological advances over the next decade.
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Affiliation(s)
- Dongwhi Choi
- Department
of Mechanical Engineering (Integrated Engineering Program), Kyung Hee University, Yongin, Gyeonggi 17104, South Korea
| | - Younghoon Lee
- Department
of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
- Department
of Mechanical Engineering, Soft Robotics Research Center, Seoul National University, Seoul 08826, South Korea
- Department
of Mechanical Engineering, Gachon University, Seongnam 13120, Korea
| | - Zong-Hong Lin
- Department
of Mechanical Engineering (Integrated Engineering Program), Kyung Hee University, Yongin, Gyeonggi 17104, South Korea
- Department
of Biomedical Engineering, National Taiwan
University, Taipei 10617, Taiwan
- Frontier
Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Sumin Cho
- Department
of Mechanical Engineering (Integrated Engineering Program), Kyung Hee University, Yongin, Gyeonggi 17104, South Korea
| | - Miso Kim
- School
of Advanced Materials Science & Engineering, Sungkyunkwan University, Suwon 16419, Republic
of Korea
- SKKU
Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi 16419, South Korea
| | - Chi Kit Ao
- Department
of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore
| | - Siowling Soh
- Department
of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore
| | - Changwan Sohn
- Division
of Advanced Materials Engineering, Jeonbuk
National University, 567 Baekje-daero, Deokjin-gu, Jeonju, Jeonbuk 54896, South Korea
- Department
of Energy Storage/Conversion Engineering of Graduate School (BK21
FOUR), Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, Jeonbuk 54896, South Korea
| | - Chang Kyu Jeong
- Division
of Advanced Materials Engineering, Jeonbuk
National University, 567 Baekje-daero, Deokjin-gu, Jeonju, Jeonbuk 54896, South Korea
- Department
of Energy Storage/Conversion Engineering of Graduate School (BK21
FOUR), Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, Jeonbuk 54896, South Korea
| | - Jeongwan Lee
- Department
of Physics, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, South Korea
| | - Minbaek Lee
- Department
of Physics, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, South Korea
| | - Seungah Lee
- School
of Materials Science & Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, South Korea
| | - Jungho Ryu
- School
of Materials Science & Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, South Korea
| | - Parag Parashar
- Department
of Biomedical Engineering, National Taiwan
University, Taipei 10617, Taiwan
| | - Yujang Cho
- Department
of Materials Science and Engineering, Korea
Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro,
Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jaewan Ahn
- Department
of Materials Science and Engineering, Korea
Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro,
Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Il-Doo Kim
- Department
of Materials Science and Engineering, Korea
Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro,
Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Feng Jiang
- School
of Materials Science and Engineering, Nanyang
Technological University, 50 Nanyang Avenue, 639798, Singapore
- Institute of Flexible
Electronics Technology of Tsinghua, Jiaxing, Zhejiang 314000, China
| | - Pooi See Lee
- School
of Materials Science and Engineering, Nanyang
Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Gaurav Khandelwal
- Nanomaterials
and System Lab, Major of Mechatronics Engineering, Faculty of Applied
Energy System, Jeju National University, Jeju 632-43, South Korea
- School
of Engineering, University of Glasgow, Glasgow G128QQ, U. K.
| | - Sang-Jae Kim
- Nanomaterials
and System Lab, Major of Mechatronics Engineering, Faculty of Applied
Energy System, Jeju National University, Jeju 632-43, South Korea
| | - Hyun Soo Kim
- Electronic
Materials Research Center, Korea Institute
of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Department
of Physics, Inha University, Incheon 22212, Republic of Korea
| | - Hyun-Cheol Song
- Electronic
Materials Research Center, Korea Institute
of Science and Technology (KIST), Seoul 02792, Republic of Korea
- KIST-SKKU
Carbon-Neutral Research Center, Sungkyunkwan
University (SKKU), Suwon 16419, Republic
of Korea
| | - Minje Kim
- Department
of Electrical Engineering, College of Engineering, Chungnam National University, 34134, Daehak-ro, Yuseong-gu, Daejeon 34134, South Korea
| | - Junghyo Nah
- Department
of Electrical Engineering, College of Engineering, Chungnam National University, 34134, Daehak-ro, Yuseong-gu, Daejeon 34134, South Korea
| | - Wook Kim
- School
of Mechanical Engineering, College of Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi 16419, South Korea
| | - Habtamu Gebeyehu Menge
- Department
of Mechanical Engineering, College of Engineering, Myongji University, 116 Myongji-ro, Cheoin-gu, Yongin, Gyeonggi 17058, Republic of Korea
| | - Yong Tae Park
- Department
of Mechanical Engineering, College of Engineering, Myongji University, 116 Myongji-ro, Cheoin-gu, Yongin, Gyeonggi 17058, Republic of Korea
| | - Wei Xu
- Research
Centre for Humanoid Sensing, Zhejiang Lab, Hangzhou 311100, P. R. China
| | - Jianhua Hao
- Department
of Applied Physics, The Hong Kong Polytechnic
University, Hong Kong, P.R. China
| | - Hyosik Park
- Department
of Energy Science and Engineering, Daegu
Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Ju-Hyuck Lee
- Department
of Energy Science and Engineering, Daegu
Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Dong-Min Lee
- School
of Advanced Materials Science & Engineering, Sungkyunkwan University, Suwon 16419, Republic
of Korea
| | - Sang-Woo Kim
- School
of Advanced Materials Science & Engineering, Sungkyunkwan University, Suwon 16419, Republic
of Korea
- SKKU
Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi 16419, South Korea
- Samsung
Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University, 115, Irwon-ro, Gangnam-gu, Seoul 06351, South Korea
- SKKU
Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi 16419, South Korea
| | - Ji Young Park
- School
of Advanced Materials Science & Engineering, Sungkyunkwan University, Suwon 16419, Republic
of Korea
| | - Haixia Zhang
- National
Key Laboratory of Science and Technology on Micro/Nano Fabrication;
Beijing Advanced Innovation Center for Integrated Circuits, School
of Integrated Circuits, Peking University, Beijing 100871, China
| | - Yunlong Zi
- Thrust
of Sustainable Energy and Environment, The
Hong Kong University of Science and Technology (Guangzhou), Nansha, Guangdong 511400, China
| | - Ru Guo
- Thrust
of Sustainable Energy and Environment, The
Hong Kong University of Science and Technology (Guangzhou), Nansha, Guangdong 511400, China
| | - Jia Cheng
- State
Key Laboratory of Tribology in Advanced Equipment, Department of Mechanical
Engineering, Tsinghua University, Beijing 100084, China
| | - Ze Yang
- State
Key Laboratory of Tribology in Advanced Equipment, Department of Mechanical
Engineering, Tsinghua University, Beijing 100084, China
| | - Yannan Xie
- College
of Automation & Artificial Intelligence, State Key Laboratory
of Organic Electronics and Information Displays & Institute of
Advanced Materials, Jiangsu Key Laboratory for Biosensors, Jiangsu
National Synergetic Innovation Center for Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing, Jiangsu 210023, China
| | - Sangmin Lee
- School
of Mechanical Engineering, Chung-ang University, 84, Heukseok-ro, Dongjak-gu, Seoul 06974, South Korea
| | - Jihoon Chung
- Department
of Mechanical Design Engineering, Kumoh
National Institute of Technology (KIT), 61 Daehak-ro, Gumi, Gyeongbuk 39177, South Korea
| | - Il-Kwon Oh
- National
Creative Research Initiative for Functionally Antagonistic Nano-Engineering,
Department of Mechanical Engineering, School of Mechanical and Aerospace
Engineering, Korea Advanced Institute of
Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Ji-Seok Kim
- National
Creative Research Initiative for Functionally Antagonistic Nano-Engineering,
Department of Mechanical Engineering, School of Mechanical and Aerospace
Engineering, Korea Advanced Institute of
Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Tinghai Cheng
- Beijing
Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
| | - Qi Gao
- Beijing
Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
| | - Gang Cheng
- Key
Lab for Special Functional Materials, Ministry of Education, National
& Local Joint Engineering Research Center for High-efficiency
Display and Lighting Technology, School of Materials Science and Engineering,
and Collaborative Innovation Center of Nano Functional Materials and
Applications, Henan University, Kaifeng 475004, China
| | - Guangqin Gu
- Key
Lab for Special Functional Materials, Ministry of Education, National
& Local Joint Engineering Research Center for High-efficiency
Display and Lighting Technology, School of Materials Science and Engineering,
and Collaborative Innovation Center of Nano Functional Materials and
Applications, Henan University, Kaifeng 475004, China
| | - Minseob Shim
- Department
of Electronic Engineering, College of Engineering, Gyeongsang National University, 501, Jinjudae-ro, Gaho-dong, Jinju 52828, South Korea
| | - Jeehoon Jung
- Department
of Electrical Engineering, College of Information and Biotechnology, Ulsan National Institute of Science and Technology
(UNIST), 50, UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, South Korea
| | - Changwoo Yun
- Department
of Electrical Engineering, College of Information and Biotechnology, Ulsan National Institute of Science and Technology
(UNIST), 50, UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, South Korea
| | - Chi Zhang
- CAS
Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano
Energy and Sensor, Beijing Institute of
Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
- School
of Nanoscience and Technology, University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Guoxu Liu
- CAS
Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano
Energy and Sensor, Beijing Institute of
Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
- School
of Nanoscience and Technology, University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Yufeng Chen
- Department
of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Suhan Kim
- Department
of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Xiangyu Chen
- School
of Nanoscience and Technology, University
of Chinese Academy of Sciences, Beijing 100049, China
- CAS
Center for Excellence in Nanoscience, Beijing
Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, 100083 Beijing, China
| | - Jun Hu
- School
of Nanoscience and Technology, University
of Chinese Academy of Sciences, Beijing 100049, China
- CAS
Center for Excellence in Nanoscience, Beijing
Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, 100083 Beijing, China
| | - Xiong Pu
- School
of Nanoscience and Technology, University
of Chinese Academy of Sciences, Beijing 100049, China
- CAS
Center for Excellence in Nanoscience, Beijing
Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, 100083 Beijing, China
| | - Zi Hao Guo
- School
of Nanoscience and Technology, University
of Chinese Academy of Sciences, Beijing 100049, China
- CAS
Center for Excellence in Nanoscience, Beijing
Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, 100083 Beijing, China
| | - Xudong Wang
- Department
of Materials Science and Engineering, University
of Wisconsin−Madison, Madison, Wisconsin 53706, United States
| | - Jun Chen
- Department
of Bioengineering, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Xiao Xiao
- Department
of Bioengineering, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Xing Xie
- School
of Civil & Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Mourin Jarin
- School
of Civil & Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Hulin Zhang
- College
of Information and Computer, Taiyuan University
of Technology, Taiyuan 030024, P. R. China
| | - Ying-Chih Lai
- Department
of Materials Science and Engineering, National
Chung Hsing University, Taichung 40227, Taiwan
- i-Center
for Advanced Science and Technology, National
Chung Hsing University, Taichung 40227, Taiwan
- Innovation
and Development Center of Sustainable Agriculture, National Chung Hsing University, Taichung 40227, Taiwan
| | - Tianyiyi He
- Department
of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, 117576, Singapore
| | - Hakjeong Kim
- School
of Mechanical Engineering, College of Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi 16419, South Korea
| | - Inkyu Park
- Department
of Mechanical Engineering, Korea Advanced
Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Junseong Ahn
- Department
of Mechanical Engineering, Korea Advanced
Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Nghia Dinh Huynh
- School
of Mechanical Engineering, College of Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi 16419, South Korea
| | - Ya Yang
- CAS
Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano
Energy and Sensor, Beijing Institute of
Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
- School
of Nanoscience and Technology, University
of Chinese Academy of Sciences, Beijing 100049, China
- Center
on Nanoenergy Research, School of Physical Science and Technology, Guangxi University, Nanning 530004, P. R. China
| | - Zhong Lin Wang
- Beijing
Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
- School
of Nanoscience and Technology, University
of Chinese Academy of Sciences, Beijing 100049, China
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
| | - Jeong Min Baik
- School
of Advanced Materials Science & Engineering, Sungkyunkwan University, Suwon 16419, Republic
of Korea
- SKKU
Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi 16419, South Korea
- KIST-SKKU
Carbon-Neutral Research Center, Sungkyunkwan
University (SKKU), Suwon 16419, Republic
of Korea
| | - Dukhyun Choi
- SKKU
Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi 16419, South Korea
- School
of Mechanical Engineering, College of Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi 16419, South Korea
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11
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Evans JP, Sen CK. Electrochemical Devices in Cutaneous Wound Healing. Bioengineering (Basel) 2023; 10:711. [PMID: 37370642 PMCID: PMC10295280 DOI: 10.3390/bioengineering10060711] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/30/2023] [Accepted: 06/01/2023] [Indexed: 06/29/2023] Open
Abstract
In healthy skin, vectorial ion transport gives rise to a transepithelial potential which directly impacts many physiological aspects of skin function. A wound is a physical defect that breaches the epithelial barrier and changes the electrochemical environment of skin. Electroceutical dressings are devices that manipulate the electrochemical environment, host as well as microbial, of a wound. In this review, electroceuticals are organized into three mechanistic classes: ionic, wireless, and battery powered. All three classes of electroceutical dressing show encouraging effects on infection management and wound healing with evidence of favorable impact on keratinocyte migration and disruption of wound biofilm infection. This foundation sets the stage for further mechanistic as well as interventional studies. Successful conduct of such studies will determine the best dosage, timing, and class of stimulus necessary to maximize therapeutic efficacy.
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Affiliation(s)
| | - Chandan K. Sen
- Indiana Center for Regenerative Medicine & Engineering, Indiana University Health Comprehensive Wound Center, Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
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12
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Fernández-Guarino M, Bacci S, Pérez González LA, Bermejo-Martínez M, Cecilia-Matilla A, Hernández-Bule ML. The Role of Physical Therapies in Wound Healing and Assisted Scarring. Int J Mol Sci 2023; 24:7487. [PMID: 37108650 PMCID: PMC10144139 DOI: 10.3390/ijms24087487] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 04/16/2023] [Accepted: 04/17/2023] [Indexed: 04/29/2023] Open
Abstract
Wound healing (WH) is a complex multistep process in which a failure could lead to a chronic wound (CW). CW is a major health problem and includes leg venous ulcers, diabetic foot ulcers, and pressure ulcers. CW is difficult to treat and affects vulnerable and pluripathological patients. On the other hand, excessive scarring leads to keloids and hypertrophic scars causing disfiguration and sometimes itchiness and pain. Treatment of WH includes the cleaning and careful handling of injured tissue, early treatment and prevention of infection, and promotion of healing. Treatment of underlying conditions and the use of special dressings promote healing. The patient at risk and risk areas should avoid injury as much as possible. This review aims to summarize the role of physical therapies as complementary treatments in WH and scarring. The article proposes a translational view, opening the opportunity to develop these therapies in an optimal way in clinical management, as many of them are emerging. The role of laser, photobiomodulation, photodynamic therapy, electrical stimulation, ultrasound therapy, and others are highlighted in a practical and comprehensive approach.
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Affiliation(s)
- Montserrat Fernández-Guarino
- Dermatology Service, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Ramón y Cajal, 28034 Madrid, Spain
| | - Stefano Bacci
- Research Unit of Histology and Embryology, Department of Biology, University of Florence, 50121 Firenze, Italy
| | - Luis Alfonso Pérez González
- Dermatology Service, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Ramón y Cajal, 28034 Madrid, Spain
| | - Mariano Bermejo-Martínez
- Specialist Nursing in Wound Healing, Angiology and Vascular Service, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Ramón y Cajal, 28034 Madrid, Spain
| | - Almudena Cecilia-Matilla
- Diabetic Foot Unit, Angiology and Vascular Service, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Ramón y Cajal, 28034 Madrid, Spain
| | - Maria Luisa Hernández-Bule
- Bioelectromagnetic Lab, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Ramón y Cajal, 28034 Madrid, Spain
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13
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Zacarias CA, de Mendonça Florenziano RF, de Andrade TAM, de Aro AA, do Amaral MEC, dos Santos GMT, Esquisatto MAM. Arnica montana L. associated with microcurrent accelerates the dermis reorganisation of skin lesions. Int J Exp Pathol 2023; 104:81-95. [PMID: 36752313 PMCID: PMC10009304 DOI: 10.1111/iep.12469] [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: 07/10/2022] [Revised: 01/03/2023] [Accepted: 01/08/2023] [Indexed: 02/09/2023] Open
Abstract
The aim of this study was to test the effect of electrical stimulation in association with topical Arnica montana gel on organisational changes in the dermis during tissue repair. An experimental rat incisional skin lesion was used for the study. This involved making an incisional lesion on the dorsum of the animals using a scalpel. Ninety-six animals were used divided into the following groups: control (C), microcurrent (MC); topical treatment with Arnica montana gel (ARN); the ARN + microcurrent (ARN + MC). Treatments were administered daily, and injured tissue samples were collected and processed on Days 2, 6 and 10 for dermis analyses. Myeloperoxidase levels were greater in control than in treatment groups on Days 2 and 6. F4/80 expression was similar among all treatment groups and greater than that in control on Day 2. On Day 6, the expression of vascular endothelial growth factor was higher in the MC group than that in other groups, whereas transforming growth factor-β expression increased in the MC and ARN + MC groups on Day 10. The expression of matrix metalloproteinase-2 was higher in the ARN + MC group when compared with other groups on Day 10. Expression levels of collagen I were increased in the ARN and ARN + MC groups when compared with control and MC groups on Day 6, while expression of collagen III was enhanced in MC, ARN, and ARN + MC groups when compared with the control. The protocol combining microcurrent with topical application of ARN reduces the inflammatory process, increases myofibroblasts proliferation and decreases the presence of macrophages in the dermis during skin repair in rats.
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Affiliation(s)
- Cresle Andrei Zacarias
- Graduate Program in Biomedical SciencesUniversity Center of Herminio Ometto Foundation – FHOArarasBrazil
| | | | | | - Andrea Aparecida de Aro
- Graduate Program in Biomedical SciencesUniversity Center of Herminio Ometto Foundation – FHOArarasBrazil
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14
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Chen Y, Xu W, Zheng X, Huang X, Dan N, Wang M, Li Y, Li Z, Dan W, Wang Y. Two-Layered Biomimetic Flexible Self-Powered Electrical Stimulator for Promoting Wound Healing. Biomacromolecules 2023; 24:1483-1496. [PMID: 36802497 DOI: 10.1021/acs.biomac.2c01520] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
The repair of wound damage has been a common problem in clinic for a long time. Inspired by the electroactive nature of tissues and the electrical stimulation of wounds in clinical practice, the next generation of wound therapy with self-powered electrical stimulator is expected to achieve the desired therapeutic effect. In this work, a two-layered self-powered electrical-stimulator-based wound dressing (SEWD) was designed through the on-demand integration of the bionic tree-like piezoelectric nanofiber and the adhesive hydrogel with biomimetic electrical activity. SEWD has good mechanical properties, adhesion properties, self-powered properties, high sensitivity, and biocompatibility. The interface between the two layers was well integrated and relatively independent. Herein, the piezoelectric nanofibers were prepared by P(VDF-TrFE) electrospinning, and the morphology of the nanofibers was controlled by adjusting the electrical conductivity of the electrospinning solution. Benefiting from its bionic dendritic structure, the prepared piezoelectric nanofibers had better mechanical properties and piezoelectric sensitivity than native P(VDF-TrFE) nanofibers, which can convert tiny forces into electrical signals as a power source for tissue repair. At the same time, the designed conductive adhesive hydrogel was inspired by the adhesive properties of natural mussels and the redox electron pairs formed by catechol and metal ions. It has bionic electrical activity matching with the tissue and can conduct the electrical signal generated by the piezoelectric effect to the wound site so as to facilitate the electrical stimulation treatment of tissue repair. In addition, in vitro and in vivo experiments demonstrated that SEWD converts mechanical energy into electricity to stimulate cell proliferation and wound healing. The proposed healing strategy for the effective treatment of skin injury was provided by developing self-powered wound dressing, which is of great significance to the rapid, safe, and effective promotion of wound healing.
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Affiliation(s)
- Yining Chen
- Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, China
- Research Center of Biomedical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Wenxin Xu
- Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, China
- Research Center of Biomedical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Xin Zheng
- Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, China
- Research Center of Biomedical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Xuantao Huang
- Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, China
- Research Center of Biomedical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Nianhua Dan
- Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, China
- Research Center of Biomedical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Meng Wang
- Department of Orthopaedics, Strategic Support Force Medical Center, Beijing 100101, P. R. China
| | - Yuwen Li
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhengjun Li
- Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, China
- Research Center of Biomedical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Weihua Dan
- Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, China
- Research Center of Biomedical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wang Jiang Road, Chengdu 610065, China
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15
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Zulbaran-Rojas A, Park C, El-Refaei N, Lepow B, Najafi B. Home-Based Electrical Stimulation to Accelerate Wound Healing-A Double-Blinded Randomized Control Trial. J Diabetes Sci Technol 2023; 17:15-24. [PMID: 34328024 PMCID: PMC9846397 DOI: 10.1177/19322968211035128] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Electrical stimulation (E-Stim) may offer a unique adjunctive treatment to heal complicated diabetic foot ulcers (DFU). Our primary goal is to examine the effectiveness of daily home-based E-Stim therapy to speed-up wound healing. METHODS Patients with chronic DFUs and mild to severe peripheral arterial disease (PAD) were recruited and randomized to either control (CG) or intervention (IG) groups. The IG received 1-hour home-based E-Stim therapy on daily basis for 4 weeks (4W). E-Stim was delivered through electrical pads placed above the ankle joint using a bio-electric stimulation technology (BEST®) platform (Tennant Biomodulator® PRO). The CG was provided with an identical but non-functional device for the same period. The primary outcome included wound area reduction at 4W from baseline (BL). RESULTS Thirty-eight patients were recruited and 5 were removed due to non-compliance or infection, leaving 33 participants (IG, n = 16; CG, n =17). At 4W, the IG showed a significant wound area reduction of 22% (BL: 7.4 ± 8.5 cm2 vs 4W: 5.8 ± 8.0 cm2, P = 0.002). Average of wound area was unchanged in the CG (P = 0.982). The self-report adherence to daily home-therapy was 93.9%. CONCLUSIONS Daily home-based E-Stim provides early results on the feasibility, acceptability, and effectiveness of E-Stim as an adjunctive therapy to speed up wound healings in patients with chronic DFU and mild to severe PAD.
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Affiliation(s)
- Alejandro Zulbaran-Rojas
- Michael E. DeBakey Department of
Surgery, Interdisciplinary Consortium on Advanced Motion Performance (iCAMP),
Division of Vascular Surgery and Endovascular Therapy, Baylor College of Medicine,
Houston, TX, USA
| | - Catherine Park
- Michael E. DeBakey Department of
Surgery, Interdisciplinary Consortium on Advanced Motion Performance (iCAMP),
Division of Vascular Surgery and Endovascular Therapy, Baylor College of Medicine,
Houston, TX, USA
| | - Nesreen El-Refaei
- Michael E. DeBakey Department of
Surgery, Interdisciplinary Consortium on Advanced Motion Performance (iCAMP),
Division of Vascular Surgery and Endovascular Therapy, Baylor College of Medicine,
Houston, TX, USA
| | - Brian Lepow
- Michael E. DeBakey Department of
Surgery, Interdisciplinary Consortium on Advanced Motion Performance (iCAMP),
Division of Vascular Surgery and Endovascular Therapy, Baylor College of Medicine,
Houston, TX, USA
| | - Bijan Najafi
- Michael E. DeBakey Department of
Surgery, Interdisciplinary Consortium on Advanced Motion Performance (iCAMP),
Division of Vascular Surgery and Endovascular Therapy, Baylor College of Medicine,
Houston, TX, USA
- Bijan Najafi, PhD, MSc, Michael E. DeBakey
Department of Surgery, Interdisciplinary Consortium on Advanced Motion
Performance (iCAMP), Division of Vascular Surgery and Endovascular Therapy,
Baylor College of Medicine, 7200 Cambridge St., Houston, TX 77030, USA.
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16
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Lu C, Prahm C, Chen Y, Ehnert S, Rinderknecht H, McCaig CD, Nussler AK, Kolbenschlag J. Microcurrent Reverses Cigarette Smoke-Induced Angiogenesis Impairment in Human Keratinocytes In Vitro. Bioengineering (Basel) 2022; 9:bioengineering9090445. [PMID: 36134990 PMCID: PMC9495747 DOI: 10.3390/bioengineering9090445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/30/2022] [Accepted: 08/30/2022] [Indexed: 11/23/2022] Open
Abstract
Cigarette smoking (CS) leads to several adverse health effects, including diseases, disabilities, and even death. Post-operative and trauma patients who smoke have an increased risk for complications, such as delayed bone or wound healing. In clinical trials, microcurrent (MC) has been shown to be a safe, non-invasive, and effective way to accelerate wound healing. Our study aimed to investigate if MC with the strength of 100 μA may be beneficial in treating CS-related healing impairment, especially in regard to angiogenesis. In this study, we investigated the effect of human keratinocyte cells (HaCaT) on angiogenesis after 72 h of cigarette smoke extract (CSE) exposure in the presence or absence of 100 μA MC. Cell viability and proliferation were evaluated by resazurin conversion, Sulforhodamine B, and Calcein-AM/Hoechst 33342 staining; the pro-angiogenic potential of HaCaT cells was evaluated by tube formation assay and angiogenesis array assay; signaling pathway alterations were investigated using Western blot. Constant exposure for 72 h to a 100 μA MC enhanced the angiogenic ability of HaCaT cells, which was mediated through the PI3K-Akt signaling pathway. In conclusion, the current data indicate that 100 μA MC may support wound healing in smoking patients by enhancing angiogenesis.
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Affiliation(s)
- Chao Lu
- Department of Hand-, Plastic, Reconstructive and Burn Surgery, BG Klinik Tuebingen, University of Tuebingen, Schnarrenbergstrasse 95, D-72076 Tuebingen, Germany
| | - Cosima Prahm
- Department of Hand-, Plastic, Reconstructive and Burn Surgery, BG Klinik Tuebingen, University of Tuebingen, Schnarrenbergstrasse 95, D-72076 Tuebingen, Germany
| | - Yangmengfan Chen
- Siegfried-Weller Institute for Trauma Research, BG Kinik Tuebingen, University of Tuebingen, Schnarrenbergstrasse 95, D-72070 Tuebingen, Germany
| | - Sabrina Ehnert
- Siegfried-Weller Institute for Trauma Research, BG Kinik Tuebingen, University of Tuebingen, Schnarrenbergstrasse 95, D-72070 Tuebingen, Germany
| | - Helen Rinderknecht
- Siegfried-Weller Institute for Trauma Research, BG Kinik Tuebingen, University of Tuebingen, Schnarrenbergstrasse 95, D-72070 Tuebingen, Germany
| | - Colin D. McCaig
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen AB25 2ZD, UK
| | - Andreas K. Nussler
- Siegfried-Weller Institute for Trauma Research, BG Kinik Tuebingen, University of Tuebingen, Schnarrenbergstrasse 95, D-72070 Tuebingen, Germany
- Correspondence: ; Tel.: +49-7071-606-1065
| | - Jonas Kolbenschlag
- Department of Hand-, Plastic, Reconstructive and Burn Surgery, BG Klinik Tuebingen, University of Tuebingen, Schnarrenbergstrasse 95, D-72076 Tuebingen, Germany
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17
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Zhong Y, Huang S, Feng Z, Fu Y, Mo A. Recent advances and trends in the applications of MXene nanomaterials for tissue engineering and regeneration. J Biomed Mater Res A 2022; 110:1840-1859. [PMID: 35975580 DOI: 10.1002/jbm.a.37438] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 07/14/2022] [Accepted: 08/03/2022] [Indexed: 11/08/2022]
Abstract
MXene, as a new two-dimensional nanomaterial, is endowed with lots of particular properties, such as large surface area, excellent conductivity, biocompatibility, biodegradability, hydrophilicity, antibacterial activity, and so on. In the past few years, MXene nanomaterials have become a rising star in biomedical fields including biological imaging, tumor diagnosis, biosensor, and tissue engineering. In this review, we sum up the recent applications of MXene nanomaterials in the field of tissue engineering and regeneration. First, we briefly introduced the synthesis and surface modification engineering of MXene. Then we focused on the application and development of MXene and MXene-based composites in skin, bone, nerve and heart tissue engineering. Uniquely, we also paid attention to some research on MXene with few achievements at present but might become a new trend in tissue engineering and regeneration in the future. Finally, this paper will also discuss several challenges faced by MXene nanomaterials in the clinical application of tissue engineering.
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Affiliation(s)
- Yongjin Zhong
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Si Huang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Zeru Feng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yu Fu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Anchun Mo
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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18
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Deng W, Zhou Y, Libanori A, Chen G, Yang W, Chen J. Piezoelectric nanogenerators for personalized healthcare. Chem Soc Rev 2022; 51:3380-3435. [PMID: 35352069 DOI: 10.1039/d1cs00858g] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The development of flexible piezoelectric nanogenerators has experienced rapid progress in the past decade and is serving as the technological foundation of future state-of-the-art personalized healthcare. Due to their highly efficient mechanical-to-electrical energy conversion, easy implementation, and self-powering nature, these devices permit a plethora of innovative healthcare applications in the space of active sensing, electrical stimulation therapy, as well as passive human biomechanical energy harvesting to third party power on-body devices. This article gives a comprehensive review of the piezoelectric nanogenerators for personalized healthcare. After a brief introduction to the fundamental physical science of the piezoelectric effect, material engineering strategies, device structural designs, and human-body centered energy harvesting, sensing, and therapeutics applications are also systematically discussed. In addition, the challenges and opportunities of utilizing piezoelectric nanogenerators for self-powered bioelectronics and personalized healthcare are outlined in detail.
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Affiliation(s)
- Weili Deng
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90095, USA. .,School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Yihao Zhou
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90095, USA.
| | - Alberto Libanori
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90095, USA.
| | - Guorui Chen
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90095, USA.
| | - Weiqing Yang
- School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Jun Chen
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90095, USA.
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19
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Egan G, Phuagkhaopong S, Matthew SAL, Connolly P, Seib FP. Impact of silk hydrogel secondary structure on hydrogel formation, silk leaching and in vitro response. Sci Rep 2022; 12:3729. [PMID: 35260610 PMCID: PMC8904773 DOI: 10.1038/s41598-022-07437-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 02/15/2022] [Indexed: 11/09/2022] Open
Abstract
Silk can be processed into a broad spectrum of material formats and is explored for a wide range of medical applications, including hydrogels for wound care. The current paradigm is that solution-stable silk fibroin in the hydrogels is responsible for their therapeutic response in wound healing. Here, we generated physically cross-linked silk fibroin hydrogels with tuned secondary structure and examined their ability to influence their biological response by leaching silk fibroin. Significantly more silk fibroin leached from hydrogels with an amorphous silk fibroin structure than with a beta sheet-rich silk fibroin structure, although all hydrogels leached silk fibroin. The leached silk was biologically active, as it induced vitro chemokinesis and faster scratch assay wound healing by activating receptor tyrosine kinases. Overall, these effects are desirable for wound management and show the promise of silk fibroin and hydrogel leaching in the wider healthcare setting.
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Affiliation(s)
- Gemma Egan
- Department of Biomedical Engineering, Faculty of Engineering, University of Strathclyde, Glasgow, UK.,Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow, G4 0RE, UK
| | - Suttinee Phuagkhaopong
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow, G4 0RE, UK
| | - Saphia A L Matthew
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow, G4 0RE, UK
| | - Patricia Connolly
- Department of Biomedical Engineering, Faculty of Engineering, University of Strathclyde, Glasgow, UK.
| | - F Philipp Seib
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow, G4 0RE, UK. .,EPSRC Future Manufacturing Research Hub for Continuous Manufacturing and Advanced Crystallisation (CMAC), University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow, G1 1RD, UK.
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20
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Non-contact electrical stimulation as an effective means to promote wound healing. Bioelectrochemistry 2022; 146:108108. [DOI: 10.1016/j.bioelechem.2022.108108] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 03/20/2022] [Accepted: 03/21/2022] [Indexed: 12/17/2022]
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21
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Redkiewicz P. The Regenerative Potential of Substance P. Int J Mol Sci 2022; 23:750. [PMID: 35054936 PMCID: PMC8776127 DOI: 10.3390/ijms23020750] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 12/28/2021] [Accepted: 01/07/2022] [Indexed: 02/04/2023] Open
Abstract
Wound healing is a highly coordinated process which leads to the repair and regeneration of damaged tissue. Still, numerous diseases such as diabetes, venous insufficiencies or autoimmune diseases could disturb proper wound healing and lead to chronic and non-healing wounds, which are still a great challenge for medicine. For many years, research has been carried out on finding new therapeutics which improve the healing of chronic wounds. One of the most extensively studied active substances that has been widely tested in the treatment of different types of wounds was Substance P (SP). SP is one of the main neuropeptides released by nervous fibers in responses to injury. This review provides a thorough overview of the application of SP in different types of wound models and assesses its efficacy in wound healing.
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Affiliation(s)
- Patrycja Redkiewicz
- Department of Neuropeptides, Mossakowski Medical Research Institute Polish Academy of Sciences, 5 Pawińskiego Street, PL 02-106 Warsaw, Poland
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22
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Kao FC, Ho HH, Chiu PY, Hsieh MK, Liao J, Lai PL, Huang YF, Dong MY, Tsai TT, Lin ZH. Self-assisted wound healing using piezoelectric and triboelectric nanogenerators. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2022; 23:1-16. [PMID: 35023999 PMCID: PMC8745397 DOI: 10.1080/14686996.2021.2015249] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The complex process of wound healing depends on the coordinated interaction between various immunological and biological systems, which can be aided by technology. This present review provides a broad overview of the medical applications of piezoelectric and triboelectric nanogenerators, focusing on their role in the development of wound healing technology. Based on the finding that the damaged epithelial layer of the wound generates an endogenous bioelectric field to regulate the wound healing process, development of technological device for providing an exogenous electric field has therefore been paid attention. Authors of this review focus on the design and application of piezoelectric and triboelectric materials to manufacture self-powered nanogenerators, and conclude with an outlook on the current challenges and future potential in meeting medical needs and commercialization.
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Affiliation(s)
- Fu-Cheng Kao
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu, Taiwan
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
- Department of Orthopaedic Surgery, Spine Section, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Hsin-Hsuan Ho
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Ping-Yeh Chiu
- Department of Orthopaedic Surgery, Spine Section, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Ming-Kai Hsieh
- Department of Orthopaedic Surgery, Spine Section, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Jen‐Chung Liao
- Department of Orthopaedic Surgery, Spine Section, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Po-Liang Lai
- Department of Orthopaedic Surgery, Spine Section, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yu-Fen Huang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
- Institute of Analytical and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Min-Yan Dong
- Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan
| | - Tsung-Ting Tsai
- Department of Orthopaedic Surgery, Spine Section, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Tsung-Ting Tsai Department of Orthopaedic Surgery, Spine Section, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Zong-Hong Lin
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu, Taiwan
- Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, Taiwan
- Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu, Taiwan
- CONTACT Zong-Hong Lin Department of Orthopaedic Surgery, Spine Section, Chang Gung Memorial Hospital, Taoyuan, Taiwan
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23
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Yu R, Zhang H, Guo B. Conductive Biomaterials as Bioactive Wound Dressing for Wound Healing and Skin Tissue Engineering. NANO-MICRO LETTERS 2021; 14:1. [PMID: 34859323 PMCID: PMC8639891 DOI: 10.1007/s40820-021-00751-y] [Citation(s) in RCA: 219] [Impact Index Per Article: 73.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 10/29/2021] [Indexed: 05/06/2023]
Abstract
Conductive biomaterials based on conductive polymers, carbon nanomaterials, or conductive inorganic nanomaterials demonstrate great potential in wound healing and skin tissue engineering, owing to the similar conductivity to human skin, good antioxidant and antibacterial activities, electrically controlled drug delivery, and photothermal effect. However, a review highlights the design and application of conductive biomaterials for wound healing and skin tissue engineering is lacking. In this review, the design and fabrication methods of conductive biomaterials with various structural forms including film, nanofiber, membrane, hydrogel, sponge, foam, and acellular dermal matrix for applications in wound healing and skin tissue engineering and the corresponding mechanism in promoting the healing process were summarized. The approaches that conductive biomaterials realize their great value in healing wounds via three main strategies (electrotherapy, wound dressing, and wound assessment) were reviewed. The application of conductive biomaterials as wound dressing when facing different wounds including acute wound and chronic wound (infected wound and diabetic wound) and for wound monitoring is discussed in detail. The challenges and perspectives in designing and developing multifunctional conductive biomaterials are proposed as well.
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Affiliation(s)
- Rui Yu
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Hualei Zhang
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Baolin Guo
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China.
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China.
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24
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Abstract
LEARNING OBJECTIVES After studying this article, the participant should be able to: 1. Understand the basics of biofilm infection and be able to distinguish between planktonic and biofilm modes of growth. 2. Have a working knowledge of conventional and emerging antibiofilm therapies and their modes of action as they pertain to wound care. 3. Understand the challenges associated with testing and marketing antibiofilm strategies and the context within which these strategies may have effective value. SUMMARY The Centers for Disease Control and Prevention estimate for human infectious diseases caused by bacteria with a biofilm phenotype is 65 percent and the National Institutes of Health estimate is closer to 80 percent. Biofilms are hostile microbial aggregates because, within their polymeric matrix cocoons, they are protected from antimicrobial therapy and attack from host defenses. Biofilm-infected wounds, even when closed, show functional deficits such as deficient extracellular matrix and impaired barrier function, which are likely to cause wound recidivism. The management of invasive wound infection often includes systemic antimicrobial therapy in combination with débridement of wounds to a healthy tissue bed as determined by the surgeon who has no way of visualizing the biofilm. The exceedingly high incidence of false-negative cultures for bacteria in a biofilm state leads to missed diagnoses of wound infection. The use of topical and parenteral antimicrobial therapy without wound débridement have had limited impact on decreasing biofilm infection, which remains a major problem in wound care. Current claims to manage wound biofilm infection rest on limited early-stage data. In most cases, such data originate from limited experimental systems that lack host immune defense. In making decisions on the choice of commercial products to manage wound biofilm infection, it is important to critically appreciate the mechanism of action and significance of the relevant experimental system. In this work, the authors critically review different categories of antibiofilm products, with emphasis on their strengths and limitations as evident from the published literature.
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Affiliation(s)
- Chandan K Sen
- From the Indiana University Health Comprehensive Wound Center, the Indiana Center for Regenerative Medicine & Engineering, and the Indiana University School of Medicine
| | - Sashwati Roy
- From the Indiana University Health Comprehensive Wound Center, the Indiana Center for Regenerative Medicine & Engineering, and the Indiana University School of Medicine
| | - Shomita S Mathew-Steiner
- From the Indiana University Health Comprehensive Wound Center, the Indiana Center for Regenerative Medicine & Engineering, and the Indiana University School of Medicine
| | - Gayle M Gordillo
- From the Indiana University Health Comprehensive Wound Center, the Indiana Center for Regenerative Medicine & Engineering, and the Indiana University School of Medicine
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25
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Weiliang Z, Lili G. Research Advances in the Application of Adipose-Derived Stem Cells Derived Exosomes in Cutaneous Wound Healing. Ann Dermatol 2021; 33:309-317. [PMID: 34341631 PMCID: PMC8273313 DOI: 10.5021/ad.2021.33.4.309] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/21/2020] [Accepted: 01/11/2021] [Indexed: 12/15/2022] Open
Abstract
Cutaneous wound healing has always been an intractable medical problem for both clinicians and researchers, with an urgent need for more efficacious methods to achieve optimal outcomes morphologically and functionally. Stem cells, the body's rapid response ‘road repair crew,’ being on standby to combat tissue injuries, are an essential part of regenerative medicine. Currently, the use of adipose-derived stem cells (ADSCs), a kind of mesenchymal stem cells with multipotent differentiation and self-renewal capacity, is surging in the field of cutaneous wound healing. ADSCs may exert influences either by releasing paracrine signalling factors or differentiating into mature adipose cells to provide the ‘building blocks’ for engineered tissue. As an important paracrine substance released from ADSCs, exosomes are a kind of extracellular vesicles and carrying various bioactive molecules mediating adjacent or distant intercellular communication. Previous studies have indicated that ADSCs derived exosomes (ADSCs-Exos) promoted skin wound healing by affecting all stages of wound healing, including regulating inflammatory response, promoting proliferation and migration of fibroblasts or keratinocytes, facilitating angiogenesis, and regulating remodeling of extracellular matrix, which have provided new opportunities for understanding how ADSCs-Exos mediate intercellular communication in pathological processes of the skin and therapeutic strategies for cutaneous wound repair. In this review, we focus on elucidating the role of ADSCs-Exos at various stages of cutaneous wound healing, detailing the latest developments, and presenting some challenges necessary to be addressed in this field, with the expectation of providing a new perspective on how to best utilize this powerful cell-free therapy in the future.
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Affiliation(s)
- Zeng Weiliang
- Department of Cosmetic and Plastic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guo Lili
- Department of Cosmetic and Plastic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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26
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Rajendran SB, Challen K, Wright KL, Hardy JG. Electrical Stimulation to Enhance Wound Healing. J Funct Biomater 2021; 12:40. [PMID: 34205317 PMCID: PMC8293212 DOI: 10.3390/jfb12020040] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/07/2021] [Accepted: 06/09/2021] [Indexed: 12/11/2022] Open
Abstract
Electrical stimulation (ES) can serve as a therapeutic modality accelerating the healing of wounds, particularly chronic wounds which have impaired healing due to complications from underlying pathology. This review explores how ES affects the cellular mechanisms of wound healing, and its effectiveness in treating acute and chronic wounds. Literature searches with no publication date restrictions were conducted using the Cochrane Library, Medline, Web of Science, Google Scholar and PubMed databases, and 30 full-text articles met the inclusion criteria. In vitro and in vivo experiments investigating the effect of ES on the general mechanisms of healing demonstrated increased epithelialization, fibroblast migration, and vascularity around wounds. Six in vitro studies demonstrated bactericidal effects upon exposure to alternating and pulsed current. Twelve randomized controlled trials (RCTs) investigated the effect of pulsed current on chronic wound healing. All reviewed RCTs demonstrated a larger reduction in wound size and increased healing rate when compared to control groups. In conclusion, ES therapy can contribute to improved chronic wound healing and potentially reduce the financial burden associated with wound management. However, the variations in the wound characteristics, patient demographics, and ES parameters used across studies present opportunities for systematic RCT studies in the future.
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Affiliation(s)
- Saranya B. Rajendran
- Lancaster Medical School, Faculty of Health and Medicine, Lancaster University, Lancaster, Lancashire LA1 4AT, UK;
| | - Kirsty Challen
- Emergency Department, Lancashire Teaching Hospitals NHS Trust, Royal Preston Hospital, Sharoe Green Lane, Preston, Lancashire PR2 9HT, UK;
| | - Karen L. Wright
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancaster, Lancashire LA1 4YG, UK
| | - John G. Hardy
- Department of Chemistry, Faculty of Science and Technology, Lancaster University, Lancaster, Lancashire LA1 4YB, UK
- Materials Science Institute, Lancaster University, Lancaster, Lancashire LA1 4YB, UK
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27
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Deivasigamani R, Maidin NNM, Wee MFMR, Mohamed MA, Buyong MR. Dielectrophoresis Prototypic Polystyrene Particle Synchronization toward Alive Keratinocyte Cells for Rapid Chronic Wound Healing. SENSORS (BASEL, SWITZERLAND) 2021; 21:3007. [PMID: 33922993 PMCID: PMC8123363 DOI: 10.3390/s21093007] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/25/2021] [Accepted: 04/09/2021] [Indexed: 12/12/2022]
Abstract
Diabetes patients are at risk of having chronic wounds, which would take months to years to resolve naturally. Chronic wounds can be countered using the electrical stimulation technique (EST) by dielectrophoresis (DEP), which is label-free, highly sensitive, and selective for particle trajectory. In this study, we focus on the validation of polystyrene particles of 3.2 and 4.8 μm to predict the behavior of keratinocytes to estimate their crossover frequency (fXO) using the DEP force (FDEP) for particle manipulation. MyDEP is a piece of java-based stand-alone software used to consider the dielectric particle response to AC electric fields and analyzes the electrical properties of biological cells. The prototypic 3.2 and 4.8 μm polystyrene particles have fXO values from MyDEP of 425.02 and 275.37 kHz, respectively. Fibroblast cells were also subjected to numerical analysis because the interaction of keratinocytes and fibroblast cells is essential for wound healing. Consequently, the predicted fXO from the MyDEP plot for keratinocyte and fibroblast cells are 510.53 and 28.10 MHz, respectively. The finite element method (FEM) is utilized to compute the electric field intensity and particle trajectory based on DEP and drag forces. Moreover, the particle trajectories are quantified in a high and low conductive medium. To justify the simulation, further DEP experiments are carried out by applying a non-uniform electric field to a mixture of different sizes of polystyrene particles and keratinocyte cells, and these results are well agreed. The alive keratinocyte cells exhibit NDEP force in a highly conductive medium from 100 kHz to 25 MHz. 2D/3D motion analysis software (DIPP-MotionV) can also perform image analysis of keratinocyte cells and evaluate the average speed, acceleration, and trajectory position. The resultant NDEP force can align the keratinocyte cells in the wound site upon suitable applied frequency. Thus, MyDEP estimates the Clausius-Mossotti factors (CMF), FEM computes the cell trajectory, and the experimental results of prototypic polystyrene particles are well correlated and provide an optimistic response towards keratinocyte cells for rapid wound healing applications.
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Affiliation(s)
| | | | | | | | - Muhamad Ramdzan Buyong
- Institute of Microengineering and Nanoelectronics, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia; (R.D.); (N.N.M.M.); (M.F.M.R.W.); (M.A.M.)
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28
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Long Y, Li J, Yang F, Wang J, Wang X. Wearable and Implantable Electroceuticals for Therapeutic Electrostimulations. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2004023. [PMID: 33898184 PMCID: PMC8061371 DOI: 10.1002/advs.202004023] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/20/2020] [Indexed: 05/21/2023]
Abstract
Wearable and implantable electroceuticals (WIEs) for therapeutic electrostimulation (ES) have become indispensable medical devices in modern healthcare. In addition to functionality, device miniaturization, conformability, biocompatibility, and/or biodegradability are the main engineering targets for the development and clinical translation of WIEs. Recent innovations are mainly focused on wearable/implantable power sources, advanced conformable electrodes, and efficient ES on targeted organs and tissues. Herein, nanogenerators as a hotspot wearable/implantable energy-harvesting technique suitable for powering WIEs are reviewed. Then, electrodes for comfortable attachment and efficient delivery of electrical signals to targeted tissue/organ are introduced and compared. A few promising application directions of ES are discussed, including heart stimulation, nerve modulation, skin regeneration, muscle activation, and assistance to other therapeutic modalities.
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Affiliation(s)
- Yin Long
- Department of Material Science and EngineeringUniversity of Wisconsin–MadisonMadisonWI53706USA
| | - Jun Li
- Department of Material Science and EngineeringUniversity of Wisconsin–MadisonMadisonWI53706USA
| | - Fan Yang
- Department of Material Science and EngineeringUniversity of Wisconsin–MadisonMadisonWI53706USA
| | - Jingyu Wang
- Department of Material Science and EngineeringUniversity of Wisconsin–MadisonMadisonWI53706USA
| | - Xudong Wang
- Department of Material Science and EngineeringUniversity of Wisconsin–MadisonMadisonWI53706USA
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Singh M, Varela CE, Whyte W, Horvath MA, Tan NCS, Ong CB, Liang P, Schermerhorn ML, Roche ET, Steele TWJ. Minimally invasive electroceutical catheter for endoluminal defect sealing. SCIENCE ADVANCES 2021; 7:eabf6855. [PMID: 33811080 PMCID: PMC11057783 DOI: 10.1126/sciadv.abf6855] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 02/16/2021] [Indexed: 06/12/2023]
Abstract
Surgical repair of lumen defects is associated with periprocedural morbidity and mortality. Endovascular repair with tissue adhesives may reduce host tissue damage, but current bioadhesive designs do not support minimally invasive deployment. Voltage-activated tissue adhesives offer a new strategy for endoluminal repair. To facilitate the clinical translation of voltage-activated adhesives, an electroceutical patch (ePATCH) paired with a minimally invasive catheter with retractable electrodes (CATRE) is challenged against the repair of in vivo and ex vivo lumen defects. The ePATCH/CATRE platform demonstrates the sealing of lumen defects up to 2 millimeters in diameter on wet tissue substrates. Water-tight seals are flexible and resilient, withstanding over 20,000 physiological relevant stress/strain cycles. No disruption to electrical signals was observed when the ePATCH was electrically activated on the beating heart. The ePATCH/CATRE platform has diverse potential applications ranging from endovascular treatment of pseudo-aneurysms/fistulas to bioelectrodes toward electrophysiological mapping.
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Affiliation(s)
- Manisha Singh
- NTU-Northwestern Institute for Nanomedicine (NNIN), Interdisciplinary Graduate School (IGS), Nanyang Technological University (NTU), 50 Nanyang Drive, Singapore 637553, Singapore
- School of Materials Science and Engineering (MSE), Nanyang Technological University (NTU), Singapore 639798, Singapore
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Claudia E Varela
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Harvard-MIT Program in Health Sciences and Technology, Cambridge, MA 02139, USA
| | - William Whyte
- Harvard-MIT Program in Health Sciences and Technology, Cambridge, MA 02139, USA
| | - Markus A Horvath
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Harvard-MIT Program in Health Sciences and Technology, Cambridge, MA 02139, USA
| | - Nigel C S Tan
- School of Materials Science and Engineering (MSE), Nanyang Technological University (NTU), Singapore 639798, Singapore
| | - Chee Bing Ong
- Histopathology/Advanced Molecular Pathology Lab, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology, and Research, 61 Biopolis Drive, Singapore 138673, Singapore
| | - Patric Liang
- Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
| | - Marc L Schermerhorn
- Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
| | - Ellen T Roche
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Terry W J Steele
- NTU-Northwestern Institute for Nanomedicine (NNIN), Interdisciplinary Graduate School (IGS), Nanyang Technological University (NTU), 50 Nanyang Drive, Singapore 637553, Singapore.
- School of Materials Science and Engineering (MSE), Nanyang Technological University (NTU), Singapore 639798, Singapore
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Fibrinogen, collagen, and transferrin adsorption to poly(3,4-ethylenedioxythiophene)-xylorhamno-uronic glycan composite conducting polymer biomaterials for wound healing applications. Biointerphases 2021; 16:021003. [PMID: 33752337 DOI: 10.1116/6.0000708] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
We present the conducting polymer poly (3,4-ethylenedioxythiophene) (PEDOT) doped with an algal-derived glycan extract, Phycotrix™ [xylorhamno-uronic glycan (XRU84)], as an innovative electrically conductive material capable of providing beneficial biological and electrical cues for the promotion of favorable wound healing processes. Increased loading of the algal XRU84 into PEDOT resulted in a reduced surface nanoroughness and interfacial surface area and an increased static water contact angle. PEDOT-XRU84 films demonstrated good electrical stability and charge storage capacity and a reduced impedance relative to the control gold electrode. A quartz crystal microbalance with dissipation monitoring study of protein adsorption (transferrin, fibrinogen, and collagen) showed that collagen adsorption increased significantly with increased XRU84 loading, while transferrin adsorption was significantly reduced. The viscoelastic properties of adsorbed protein, characterized using the ΔD/Δf ratio, showed that for transferrin and fibrinogen, a rigid, dehydrated layer was formed at low XRU84 loadings. Cell studies using human dermal fibroblasts demonstrated excellent cell viability, with fluorescent staining of the cell cytoskeleton illustrating all polymers to present excellent cell adhesion and spreading after 24 h.
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Memariani H, Memariani M, Moravvej H, Shahidi-Dadras M. Emerging and Novel Therapies for Keloids: A compendious review. Sultan Qaboos Univ Med J 2021; 21:e22-e33. [PMID: 33777420 PMCID: PMC7968901 DOI: 10.18295/squmj.2021.21.01.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/27/2020] [Accepted: 08/13/2020] [Indexed: 12/31/2022] Open
Abstract
Keloids are abnormal fibroproliferative scars with aggressive dermal growth expanding beyond the borders of the original injury. Different therapeutic modalities, such as corticosteroids, surgical excision, topical silicone gel sheeting, laser therapy, cryotherapy, photodynamic therapy and radiotherapy, have been used to treat keloids; however, none of these modalities has proven completely effective. Recently, researchers have devised several promising anti-keloid therapies including anti-hypertensive pharmaceuticals, calcineurin inhibitors, electrical stimulation, mesenchymal stem cell therapy, microneedle physical contact and ribonucleic acid-based therapies. The present review summarises emerging and novel treatments for keloids. PubMed® (National Library of Medicine, Bethesda, Maryland, USA), EMBASE (Elsevier, Amsterdam, Netherlands) and Web of Science (Clarivate Analytics, Philadelphia, Pennsylvania, USA) were searched for relevant literature published between January 1987 to June 2020. A total of 118 articles were included in this review. A deeper understanding of the molecular mechanisms underlying keloid scarring pathogenesis would open further avenues for developing innovative treatments.
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Affiliation(s)
- Hamed Memariani
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mojtaba Memariani
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamideh Moravvej
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Modulation of Human Mesenchymal Stem Cells by Electrical Stimulation Using an Enzymatic Biofuel Cell. Catalysts 2021. [DOI: 10.3390/catal11010062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Enzymatic biofuel cells (EBFCs) have excellent potential as components in bioelectronic devices, especially as active biointerfaces to regulate stem cell behavior for regenerative medicine applications. However, it remains unclear to what extent EBFC-generated electrical stimulation can regulate the functional behavior of human adipose-derived mesenchymal stem cells (hAD-MSCs) at the morphological and gene expression levels. Herein, we investigated the effect of EBFC-generated electrical stimulation on hAD-MSC cell morphology and gene expression using next-generation RNA sequencing. We tested three different electrical currents, 127 ± 9, 248 ± 15, and 598 ± 75 nA/cm2, in mesenchymal stem cells. We performed transcriptome profiling to analyze the impact of EBFC-derived electrical current on gene expression using next generation sequencing (NGS). We also observed changes in cytoskeleton arrangement and analyzed gene expression that depends on the electrical stimulation. The electrical stimulation of EBFC changes cell morphology through cytoskeleton re-arrangement. In particular, the results of whole transcriptome NGS showed that specific gene clusters were up- or down-regulated depending on the magnitude of applied electrical current of EBFC. In conclusion, this study demonstrates that EBFC-generated electrical stimulation can influence the morphological and gene expression properties of stem cells; such capabilities can be useful for regenerative medicine applications such as bioelectronic devices.
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Tessema Z, Molla Y. Evaluation of the wound healing activity of the crude extract of root bark of Brucea antidysentrica, the leaves of Dodonaea angustifolia and Rhamnus prinoides in mice. Heliyon 2021; 7:e05901. [PMID: 33521349 PMCID: PMC7820475 DOI: 10.1016/j.heliyon.2021.e05901] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 08/28/2020] [Accepted: 12/31/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Wounds are major problems of developing countries that can be managed alternatively using traditional medicinal plants. Since majority of currently available drugs for wound management are expensive and pose problems such as allergy and drug resistance, it is pivotal for the world to have intensified inquiries on the claimed medicinal plants to come up with wound healing chemicals being affordable, effective and safe. Ethiopian traditional healers recruit a wide range of medicinal plants with wound healing activities. Root bark juice of Brucea antidysentrica, the leaves of Rhamnus prinoides and Dodonaea angustifolia are claimed among others in the folklore medicine. Therefore, the aim of this study was to evaluate the in vivo wound healing activities of the root bark juice of Brucea antidysentrica, the leaves of Rhamnus prinoides and Dodonaea angustifolia in mice. METHOD The root bark juice of Brucea antidysentrica, the leaves of Rhamnus prinoides and Dodonaea angustifolia were collected, dried, ground to coarse powders. Then the crude extract was obtained by macerating with 80% methanol. The filtrate was dried, reconstituted in appropriate solvent and the wound healing activity was evaluated using excision and incision wound models. RESULTS On the last day of treatment, 80% methanol extracts from the selected medicinal plants showed a significant wound healing activity against control as supported by an increase in % wound contraction and a decrease in Epithelialization period. Ten percent of Rhamnus prinoides showed significant wound contraction against the control (P < 0.05) on days 2 and 4. But on day 6; except 5% extracts of Brucea antidysentrica and Rhamnus prinoides; all doses of extracts contracted the wound significantly (P < 0.05). Extracts of Dodonea angustifolia (5% & 10%) and 10% of Rhamnus prinoides and Brucea antidysentrica increases wound contraction rate with increasing significant level on days 8 & 10 (P < 0.01) and 12 &14 (P < 0.001). Among the extracts, 10% of Dodonea angustifolia showed maximum percent (99.9%; P < 0.001) of wound contraction followed by 5% Dodonea angustifolia (99.15%; P < 0.001) and 10% Rhamnus prinoides (99.00%; P < 0.001) on the last day of treatment. In addition; significantly shorter healing time was attained by 5% &10% leaves of Dodonea angustifolia (P < 0.01), 10% leaves Rhamnus prinoides & root barks Brucea antidysentrica (P < 0.05). Ten percent of Rhamnus prinoides & Brucea antidysentrica (P < 0.05) and both doses (5% & 10%) of Dodonea angustifolia (P < 0.01) significantly increased the tensile strength by 54.10%, 56.58%, 63.04%, and 79.19%, respectively against the control. CONCLUSION The 80% methanol crude extracts of the study plants support the traditional claims for healing of wounds as evidenced by an increase in wound contraction rate and tensile strength, decrease in Epithelialization period.
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Affiliation(s)
- Zenaw Tessema
- Department of Pharmacy, College of Health Sciences, Debre Markos University, P. O. Box, 269, Debre Markos, Ethiopia
| | - Yalew Molla
- Department of Pharmacy, College of Health Sciences, Debre Markos University, P. O. Box, 269, Debre Markos, Ethiopia
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Wang L, Hu S, Ullah MW, Li X, Shi Z, Yang G. Enhanced cell proliferation by electrical stimulation based on electroactive regenerated bacterial cellulose hydrogels. Carbohydr Polym 2020; 249:116829. [DOI: 10.1016/j.carbpol.2020.116829] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 07/22/2020] [Accepted: 07/22/2020] [Indexed: 01/09/2023]
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Mozneb M, Mirtaheri E, Sanabria AO, Li CZ. Bioelectronic properties of DNA, protein, cells and their applications for diagnostic medical devices. Biosens Bioelectron 2020; 167:112441. [PMID: 32763825 DOI: 10.1016/j.bios.2020.112441] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/07/2020] [Accepted: 07/08/2020] [Indexed: 01/25/2023]
Abstract
From a couple of centuries ago, understanding physical properties of biological material, their interference with their natural host and their potential manipulation for employment as a conductor in medical devices, has gathered substantial interest in the field of bioelectronics. With the fast-emerging technologies for fabrication of diagnostic modalities, wearable biosensors and implantable devices, which electrical components are of essential importance, a need for developing novel conductors within such devices has evolved over the past decades. As the possibility of electron transport within small biological molecules, such as DNA and proteins, as well as larger elements such as cells was established, several discoveries of the modern charge characterization technologies were evolved. Development of Electrochemical Scanning Tunneling Microscopy and Nuclear Magnetic Resonance among many other techniques were of vital importance, following the discoveries made in sub-micron scales of biological material. This review covers the most recent understandings of electronic properties within different scale of biological material starting from nanometer range to millimeter-sized organs. We also discuss the state-of-the-art technology that's been made taking advantage of electronic properties of biological material for addressing diseases like Parkinson's Disease and Epilepsy.
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Affiliation(s)
- Maedeh Mozneb
- Florida International University, Biomedical Engineering Department, 10555 West Flagler Street, Miami, FL, 33174, USA.
| | - Elnaz Mirtaheri
- Florida International University, Biomedical Engineering Department, 10555 West Flagler Street, Miami, FL, 33174, USA.
| | - Arianna Ortega Sanabria
- Florida International University, Biomedical Engineering Department, 10555 West Flagler Street, Miami, FL, 33174, USA.
| | - Chen-Zhong Li
- Florida International University, Biomedical Engineering Department, 10555 West Flagler Street, Miami, FL, 33174, USA.
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Caramazza L, De Angelis A, Remondini D, Castellani G, Liberti M, Apollonio F, Zironi I. Galvanotactic Phenomenon Induced by Non-Contact Electrostatic Field: Investigation in a Scratch Assay. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2020; 2020:2520-2523. [PMID: 33018519 DOI: 10.1109/embc44109.2020.9175695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Non-contact galvanotaxis as a way to drive the cells migration could be a promising tool for a variety of biomedical applications, such as wound healing control, avoiding the interaction between electrodes and cell cultures. To this regard, the efficacy of this electrical stimulus application has to be deeper studied to control physiological migratory phenomena in a remote way.Aim of this work is to provide an experimental investigation on the mobility of cells exposed to a static electric field in a "noncontact" mode, supported by a suitable modeling of the electric field distribution inside the experimental setup. In particular, scratch assays have been carried out placing the electrodes outside the cells medium support and changing the cells holder to study more than one configuration.Clinical Relevance- In this study the in vitro experiments on the non-contact galvanotaxis, together with the numerical simulations of the exposure setup, provide a way to investigate the effects that could affect an electrically drive cell migration.
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Sen CK, Mathew-Steiner SS, Das A, Sundaresan VB, Roy S. Electroceutical Management of Bacterial Biofilms and Surgical Infection. Antioxid Redox Signal 2020; 33:713-724. [PMID: 32466673 PMCID: PMC7475090 DOI: 10.1089/ars.2020.8086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 05/27/2020] [Accepted: 05/28/2020] [Indexed: 01/04/2023]
Abstract
Significance: In the host-microbe microenvironment, bioelectrical factors influence microbes and hosts as well as host-microbe interactions. This article discusses relevant mechanistic underpinnings of this novel paradigm. It also addresses how such knowledge may be leveraged to develop novel electroceutical solutions to manage biofilm infection. Recent Advances: Systematic review and meta-analysis of several hundred wound studies reported a 78.2% prevalence of biofilms in chronic wounds. Biofilm infection is a major cause of delayed wound healing. In the host-microbe microenvironment, bioelectrical factors influence interactions between microbes and hosts. Critical Issues: Rapid biological responses are driven by electrical signals generated by ion currents moving across cell membranes. Bacterial life, growth, and function rely on a bioelectrical milieu, which when perturbed impairs their ability to form a biofilm, a major threat to health care. Electrokinetic stability of several viral particles depend on electrostatic forces. Weak electrical field strength, otherwise safe for humans, can be anti-microbial in this context. In the host, the electric field enhanced keratinocyte migration, bolstered immune defenses, improved mitochondrial function, and demonstrated multiple other effects consistent with supporting wound healing. A deeper mechanistic understanding of bioelectrical principles will inform the design of next-generation electroceuticals. Future Directions: This is an opportune moment in time as there is a surge of interest in electroceuticals in medicine. Projected to reach $35.5 billion by 2025, electroceuticals are becoming a cynosure in the global market. The World Health Organization reports that more than 50% of surgical site infections can be antibiotic resistant. Electroceuticals offer a serious alternative.
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Affiliation(s)
- Chandan K. Sen
- Indiana Center for Regenerative Medicine and Engineering, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Shomita S. Mathew-Steiner
- Indiana Center for Regenerative Medicine and Engineering, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Amitava Das
- Indiana Center for Regenerative Medicine and Engineering, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Vishnu Baba Sundaresan
- Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, Ohio, USA
| | - Sashwati Roy
- Indiana Center for Regenerative Medicine and Engineering, Indiana University School of Medicine, Indianapolis, Indiana, USA
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Konstantinou E, Zagoriti Z, Pyriochou A, Poulas K. Microcurrent Stimulation Triggers MAPK Signaling and TGF-β1 Release in Fibroblast and Osteoblast-Like Cell Lines. Cells 2020; 9:E1924. [PMID: 32825091 PMCID: PMC7564311 DOI: 10.3390/cells9091924] [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: 07/17/2020] [Revised: 08/08/2020] [Accepted: 08/18/2020] [Indexed: 12/26/2022] Open
Abstract
Wound healing constitutes an essential process for all organisms and involves a sequence of three phases. The disruption or elongation of any of these phases can lead to a chronic or non-healing wound. Electrical stimulation accelerates wound healing by mimicking the current that is generated in the skin after any injury. Here, we sought to identify the molecular mechanisms involved in the healing process following in vitro microcurrent stimulation-a type of electrotherapy. Our results concluded that microcurrents promote cell proliferation and migration in an ERK 1/2- or p38-dependent way. Furthermore, microcurrents induce the secretion of transforming growth factor-beta-1 (TGF-β1) in fibroblasts and osteoblast-like cells. Interestingly, transcriptomic analysis uncovered that microcurrents enhance the transcriptional activation of genes implicated in Hedgehog, TGF-β1 and MAPK signaling pathways. Overall, our results demonstrate that microcurrents may enhance wound closure through a combination of signal transductions, via MAPK's phosphorylation, and the transcriptional activation of specific genes involved in the healing process. These mechanisms should be further examined in vivo, in order to verify the beneficial effects of microcurrents in wound or fracture healing.
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Affiliation(s)
| | | | | | - Konstantinos Poulas
- Laboratory of Molecular Biology and Immunology, Department of Pharmacy, University of Patras, 26504 Rio, Greece; (E.K.); (Z.Z.); (A.P.)
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Gouarderes S, Doumard L, Vicendo P, Mingotaud AF, Rols MP, Gibot L. Electroporation does not affect human dermal fibroblast proliferation and migration properties directly but indirectly via the secretome. Bioelectrochemistry 2020; 134:107531. [PMID: 32335353 DOI: 10.1016/j.bioelechem.2020.107531] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 04/03/2020] [Accepted: 04/04/2020] [Indexed: 12/29/2022]
Abstract
Aesthetic wound healing is often experienced by patients after electrochemotherapy. We hypothesized that pulsed electric fields applied during electrochemotherapy (ECT) or gene electrotransfer (GET) protocols could stimulate proliferation and migration of human cutaneous cells, as described in protocols for electrostimulation of wound healing. We used videomicroscopy to monitor and quantify in real time primary human dermal fibroblast behavior when exposed in vitro to ECT and GET electric parameters, in terms of survival, proliferation and migration in a calibrated scratch wound assay. Distinct electric field intensities were applied to allow gradient in cell electropermeabilization while maintaining reversible permeabilization conditions, in order to mimic in vivo heterogeneous electric field distribution of complex tissues. Neither galvanotaxis nor statistical modification of fibroblast migration were observed in a calibrated scratch wound assay after application of ECT and GET parameters. The only effect on proliferation was observed under the strongest GET conditions, which drastically reduced the number of fibroblasts through induction of mitochondrial stress and apoptosis. Finally, we found that 24 h-conditioned cell culture medium by electrically stressed fibroblasts tended to increase the migration properties of cells that were not exposed to electric field. RT-qPCR array indicated that several growth factor transcripts were strongly modified after electroporation.
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Affiliation(s)
- Sara Gouarderes
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, France
| | - Layal Doumard
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, France; Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Patricia Vicendo
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, France
| | - Anne-Françoise Mingotaud
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, France
| | - Marie-Pierre Rols
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Laure Gibot
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, France; Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, Toulouse, France.
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Gupta A, Chauhan A, Priya A, Mantri B, Wadhokar M, Dalave K, Shah B, Gokhale RS, Batra VV, Singh A. Lesional skin in vitiligo exhibits delayed in vivo reepithelialization compared to the nonlesional skin. Wound Repair Regen 2020; 28:307-314. [PMID: 32003499 DOI: 10.1111/wrr.12798] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 12/05/2019] [Accepted: 01/20/2020] [Indexed: 11/27/2022]
Abstract
Vitiligo, a common skin disorder, is characterized by the loss of functional melanocytes resulting in the depigmentation of skin. Previous studies have demonstrated molecular and architectural alterations in the epidermal keratinocytes upon loss of melanocytes. The physiological implications of these "altered" keratinocytes are yet not known. We investigated the wound healing efficiency of lesional vs nonlesional skin in 12 subjects with stable nonsegmental vitiligo using histological and ultrastructural evaluation of partial-thickness wounds. The wounds were examined 12 days postinjury, coinciding with the reepithelialization phase of healing marked primarily by keratinocyte migration and proliferation. This study demonstrated a significant difference in the reepithelialization potential between the lesional and nonlesional skin. While all 12 nonlesional wounds demonstrated considerable neoepidermis formation on the 12th day post wound, only four of the corresponding lesional samples showed comparable reepithelialization; the rest remaining in the inflammatory phase. Ultrastructural studies using transmission electron microscopy as well as immunohistochemical staining revealed a reduced number of desmosomes, shorter keratin tonofilaments and an increase in myofibroblast population in the dermis of lesional reepithelialized tissue compared to the nonlesional reepithelialized samples. This study implicates gross functional perturbations in the lesional skin during physiological wound healing in vitiligo, suggesting that the breakdown of keratinocyte-melanocyte network results in delayed wound repair kinetics in the lesional skin when compared to patient-matched nonlesional skin.
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Affiliation(s)
- Aayush Gupta
- Dr. D. Y. Patil Medical College, Hospital and Research Centre, Pune, Maharashtra, India
| | - Aparna Chauhan
- CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India
| | - Anshu Priya
- CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India.,Academy of Scientific and Innovative Research (AcSIR), Chennai, India
| | - Bhanu Mantri
- CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India
| | - Meenakshi Wadhokar
- Dr. D. Y. Patil Medical College, Hospital and Research Centre, Pune, Maharashtra, India
| | - Kalyan Dalave
- Dr. D. Y. Patil Medical College, Hospital and Research Centre, Pune, Maharashtra, India
| | - Bhavika Shah
- Dr. D. Y. Patil Medical College, Hospital and Research Centre, Pune, Maharashtra, India
| | - Rajesh S Gokhale
- CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India
| | - Vineeta V Batra
- Govind Ballabh Pant Institute of Postgraduate Medical Education and Research, New Delhi, India
| | - Archana Singh
- CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India.,Academy of Scientific and Innovative Research (AcSIR), Chennai, India
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Wireless Direct Microampere Current in Wound Healing: Clinical and Immunohistological Data from Two Single Case Reports. BIOSENSORS-BASEL 2019; 9:bios9030107. [PMID: 31492004 PMCID: PMC6784371 DOI: 10.3390/bios9030107] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 09/01/2019] [Accepted: 09/02/2019] [Indexed: 01/22/2023]
Abstract
Chronic pressure ulcers are hard-to-heal wounds that decrease the patient’s quality of life. Wireless Micro Current Stimulation (WMCS) is an innovative, non-invasive, similar to electrode-based electrostimulation (ES) technology, that generates and transfers ions that are negatively-charged to the injured tissue, using accessible air gases as a transfer medium. WMCS is capable of generating similar tissue potentials, as electrode-based ES, for injured tissue. Here, through immunohistochemistry, we intended to characterize the induced tissue healing biological mechanisms that occur during WMCS therapy. Two single cases of bedridden due to serious stroke white men with chronic non-healing pressure ulcers have been treated with WMCS technology. WMCS suppresses inflammatory responses by decreasing the aggregation of granulocytes, followed by stimulating myofibroblastic activity and a new formation of collagen fibers, as depicted by immunohistochemistry. As a result, WMCS provides a special adjunct or stand-alone therapy choice for chronic and non-healing injuries, similar to electrode-based ES, but with added (i.e., contactless) benefits towards its establishment as a routine clinical wound healing regime.
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Wang K, Parekh U, Ting JK, Yamamoto NAD, Zhu J, Costantini T, Arias AC, Eliceiri BP, Ng TN. A Platform to Study the Effects of Electrical Stimulation on Immune Cell Activation During Wound Healing. ACTA ACUST UNITED AC 2019; 3:e1900106. [DOI: 10.1002/adbi.201900106] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/30/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Kaiping Wang
- Department of Electrical and Computer Engineering University of California San Diego 9500 Gilman Drive La Jolla CA 92093 USA
| | - Udit Parekh
- Department of Electrical and Computer Engineering University of California San Diego 9500 Gilman Drive La Jolla CA 92093 USA
| | - Jonathan K. Ting
- Department of Electrical Engineering and Computer Sciences University of California Berkeley 253 Cory Hall, Berkeley CA 94720 USA
| | - Natasha A. D. Yamamoto
- Department of Electrical Engineering and Computer Sciences University of California Berkeley 253 Cory Hall, Berkeley CA 94720 USA
| | - Juan Zhu
- Department of Electrical Engineering and Computer Sciences University of California Berkeley 253 Cory Hall, Berkeley CA 94720 USA
| | - Todd Costantini
- Department of Surgery University of California San Diego USA
| | - Ana Claudia Arias
- Department of Electrical Engineering and Computer Sciences University of California Berkeley 253 Cory Hall, Berkeley CA 94720 USA
| | | | - Tse Nga Ng
- Department of Electrical and Computer Engineering University of California San Diego 9500 Gilman Drive La Jolla CA 92093 USA
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Souza AK, Souza TR, Siqueira das Neves LM, de Paula Marcondes Ferreira Leite G, Garcia SB, Roberto de Jesus Guirro R, Barbosa RI, Caldeira de Oliveira Guirro E. Effect of High Voltage Pulsed Current on the integration of total skin grafts in rats submitted to nicotine action. J Tissue Viability 2019; 28:161-166. [DOI: 10.1016/j.jtv.2019.05.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 05/14/2019] [Accepted: 05/19/2019] [Indexed: 10/26/2022]
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Imani M, Kazemi S, Saviz M, Farahmand L, Sadeghi B, Faraji-Dana R. Morphological Changes Induced By Extremely Low-Frequency Electric Fields. Bioelectromagnetics 2019; 40:375-390. [PMID: 31157927 DOI: 10.1002/bem.22195] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 04/16/2019] [Indexed: 01/27/2023]
Abstract
In this paper, morphological effects of electric fields on avian erythrocytes (nucleated red blood cells) have been studied in detail. Morphological changes include rounding and cytoplasm transparency. It has been shown that the effect is non-thermal. Careful imaging and image analyses have been carried out to show that the degree of this effect is frequency-dependent, and has a higher conversion rate at higher temperatures. Furthermore, to better understand the mechanisms behind the morphological changes, we investigated the dedifferentiation hypothesis and performed a series of tests on avian erythrocytes including fluorescence spectroscopy for hemoglobin, and tests on human umbilical cord blood, mesenchymal stem cells, and bone marrow mesenchymal stem cells including flow-cytometry analysis for expression of certain markers and calcium staining. Bioelectromagnetics. 2019;40:375-390. © 2019 Bioelectromagnetics Society.
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Affiliation(s)
- Mahdi Imani
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Sepide Kazemi
- Department of Immunotherapy and Regenerative Medicine, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
| | - Mehrdad Saviz
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Leila Farahmand
- Department of Recombinant Proteins, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
| | - Behnam Sadeghi
- Department of Immunotherapy and Regenerative Medicine, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
| | - Reza Faraji-Dana
- INSF Chair of Computational Electromagnetics and Bio-electromagnetics, School of Electrical and Computer Engineering, University of Tehran, Tehran, Iran
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Badhe RV, Nipate SS. Low-intensity current (LIC) stimulation of subcutaneous adipose derived stem cells (ADSCs) - A missing link in the course of LIC based wound healing. Med Hypotheses 2019; 125:79-83. [PMID: 30902156 DOI: 10.1016/j.mehy.2019.02.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 02/13/2019] [Accepted: 02/15/2019] [Indexed: 01/20/2023]
Abstract
Millions of people die as a result of fatal injuries accounting for 9% of the total global annual deaths. Non fatal injuries generally result in variety of wounds. The normal wound healing process is slow and takes weeks to months, depending on the type of wound. In last two decades, electrotherapy called low-intensity currents (LIC) for the treatment became popular for faster wound healing, as well as in management of nonresponding and ulcerative wounds. It was reported that LIC mimics 'the current of injury' which is generated by body on wounding and helps in faster wound healing. Researchers have also studied the migration of localized cell and other bio-molecules under the influence of LIC helping the wound to heal faster. Literature review has also suggested that, electrical stimulation of isolated adipose tissue derived stem cells (ADSCs) releases growth factors and differentiates in to specialized cells like fibroblasts and keratinocytes in laboratory conditions. These research areas are well explored and emerged as independent state-of-the-arts therapies and technologies. Considering the fact, that adipose tissue (along with ADSCs) is present subcutaneously, a new hypothesis is proposed which states that 'low intensity current (LIC) stimulation of wound stimulates subcutaneous adipose tissue containing ADSCs which releases different growth factors and also differentiates into certain cells like fibroblasts, neurons and keratinocytes. These cells easily migrate to wound site due to lipolysis and loosening of fat tissue, resulting in faster wound healing'. Thus this hypothesis provides a missing link between two state of the art technologies; first one is 'LIC based electrotherapy' and second one is 'in-vitro LIC stimulation of ADCSs' where role and significance of in-situ ADCSs were never studied.
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Affiliation(s)
- Ravindra V Badhe
- Dr. D.Y. Patil Institute of Pharmaceutical Sciences and Research, Pimpri, Pune, Maharashtra, India.
| | - Sonali S Nipate
- PE Society's Modern College of Pharmacy, Nigdi, Pune, Maharashtra, India
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Kiamco MM, Zmuda HM, Mohamed A, Call DR, Raval YS, Patel R, Beyenal H. Hypochlorous-Acid-Generating Electrochemical Scaffold for Treatment of Wound Biofilms. Sci Rep 2019; 9:2683. [PMID: 30804362 PMCID: PMC6389966 DOI: 10.1038/s41598-019-38968-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 01/07/2019] [Indexed: 11/10/2022] Open
Abstract
Biofilm formation causes prolonged wound infections due to the dense biofilm structure, differential gene regulation to combat stress, and production of extracellular polymeric substances. Acinetobacter baumannii, Staphylococcus aureus, and Pseudomonas aeruginosa are three difficult-to-treat biofilm-forming bacteria frequently found in wound infections. This work describes a novel wound dressing in the form of an electrochemical scaffold (e-scaffold) that generates controlled, low concentrations of hypochlorous acid (HOCl) suitable for killing biofilm communities without substantially damaging host tissue. Production of HOCl near the e-scaffold surface was verified by measuring its concentration using needle-type microelectrodes. E-scaffolds producing 17, 10 and 7 mM HOCl completely eradicated S. aureus, A. baumannii, and P. aeruginosa biofilms after 3 hours, 2 hours, and 1 hour, respectively. Cytotoxicity and histopathological assessment showed no discernible harm to host tissues when e-scaffolds were applied to explant biofilms. The described strategy may provide a novel antibiotic-free strategy for treating persistent biofilm-associated infections, such as wound infections.
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Affiliation(s)
- Mia Mae Kiamco
- The Gene and Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, USA
| | - Hannah M Zmuda
- The Gene and Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, USA
| | - Abdelrhman Mohamed
- The Gene and Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, USA
| | - Douglas R Call
- The Paul G. Allen School for Global Animal Health, Washington State University, Pullman, WA, USA
| | - Yash S Raval
- Divisions of Clinical Microbiology, Rochester, MN, USA
| | - Robin Patel
- Divisions of Clinical Microbiology, Rochester, MN, USA.,Divisions of Infectious Diseases, Mayo Clinic, Rochester, MN, USA
| | - Haluk Beyenal
- The Gene and Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, USA.
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Ashrafi M, Novak-Frazer L, Morris J, Baguneid M, Rautemaa-Richardson R, Bayat A. Electrical stimulation disrupts biofilms in a human wound model and reveals the potential for monitoring treatment response with volatile biomarkers. Wound Repair Regen 2018; 27:5-18. [DOI: 10.1111/wrr.12679] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 10/08/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Mohammed Ashrafi
- Plastic & Reconstructive Surgery Research, Division of Musculoskeletal & Dermatological Sciences; School of Biological Sciences, University of Manchester; Manchester United Kingdom
- Manchester University NHS Foundation Trust; Wythenshawe Hospital; Manchester United Kingdom
- Bioengineering Group, School of Materials; University of Manchester; Manchester United Kingdom
| | - Lilyann Novak-Frazer
- Manchester University NHS Foundation Trust; Wythenshawe Hospital; Manchester United Kingdom
- Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, Division of Infection, Immunity and Respiratory Medicine; School of Biological Sciences, The University of Manchester and Manchester University NHS Foundation Trust; Manchester United Kingdom
| | - Julie Morris
- Honorary Reader in Medical Statistics; Manchester University NHS Foundation Trust, Wythenshawe Hospital; Manchester United Kingdom
| | - Mohamed Baguneid
- Manchester University NHS Foundation Trust; Wythenshawe Hospital; Manchester United Kingdom
| | - Riina Rautemaa-Richardson
- Manchester University NHS Foundation Trust; Wythenshawe Hospital; Manchester United Kingdom
- Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, Division of Infection, Immunity and Respiratory Medicine; School of Biological Sciences, The University of Manchester and Manchester University NHS Foundation Trust; Manchester United Kingdom
| | - Ardeshir Bayat
- Plastic & Reconstructive Surgery Research, Division of Musculoskeletal & Dermatological Sciences; School of Biological Sciences, University of Manchester; Manchester United Kingdom
- Manchester University NHS Foundation Trust; Wythenshawe Hospital; Manchester United Kingdom
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High-Voltage Electrical Stimulation Versus Ultrasound in the Treatment of Pressure Ulcers. Adv Skin Wound Care 2018; 30:565-570. [PMID: 29140840 DOI: 10.1097/01.asw.0000526606.72489.99] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The aim of this study was to assess and compare the efficacy of high-voltage electrical stimulation (HVES) with ultrasound (US) in treating Stage II through Stage IV pressure ulcers (PrUs)* of hospitalized patients. DESIGN This study was designed as a prospective, controlled trial in which patients were randomly assigned to 2 groups. PARTICIPANTS AND SETTINGS A total of 27 patients (22 male, 5 female) hospitalized for neurologic rehabilitation in the Clinic of Physical Medicine and Rehabilitation with Stage II through Stage IV PrUs were included in this study. The patients were randomly assigned to either HVES or US treatment group, and all patients underwent standard wound care. Over 4 to 12 weeks, HVES was applied for 60 minutes 3 times per week, and US was applied 3 times per week. MAIN OUTCOME MEASURES Properties of the PrUs were noted during pre- and posttreatment. RESULTS The PrUs of patients in the HVES and US groups healed at a mean rate of 43% and 63%, respectively. There was no statistically significant intergroup difference in healing found after treatment. Regression analysis was performed for the factors that could influence the wound surface areas, and significant effects were detected among the level of ambulation, pretreatment stage, and smoking. CONCLUSIONS Both HVES and US are promising methods for wound healing, and both electrotherapy modalities have been demonstrated to support the healing of PrUs.
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Tai G, Tai M, Zhao M. Electrically stimulated cell migration and its contribution to wound healing. BURNS & TRAUMA 2018; 6:20. [PMID: 30003115 PMCID: PMC6036678 DOI: 10.1186/s41038-018-0123-2] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 06/15/2018] [Indexed: 12/29/2022]
Abstract
Naturally occurring electric fields are known to be morphogenetic cues and associated with growth and healing throughout mammalian and amphibian animals and the plant kingdom. Electricity in animals was discovered in the eighteenth century. Electric fields activate multiple cellular signaling pathways such as PI3K/PTEN, the membrane channel of KCNJ15/Kir4.2 and intracellular polyamines. These pathways are involved in the sensing of physiological electric fields, directional cell migration (galvanotaxis, also known as electrotaxis), and possibly other cellular responses. Importantly, electric fields provide a dominant and over-riding signal that directs cell migration. Electrical stimulation could be a promising therapeutic method in promoting wound healing and activating regeneration of chronic and non-healing wounds. This review provides an update of the physiological role of electric fields, its cellular and molecular mechanisms, its potential therapeutic value, and questions that still await answers.
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Affiliation(s)
- Guangping Tai
- 1Centre of Advanced Biofabrication, Department of Bioengineering and Environmental Sciences, Hefei University, Hefei City, China
| | - Michael Tai
- 2St Catherine's College, Medical Sciences Division, University of Oxford, Oxford, OX1 3UJ UK
| | - Min Zhao
- 3Departments of Dermatology and Ophthalmology, School of Medicine, University of California, Davis, CA 95817 USA
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50
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Tandon B, Magaz A, Balint R, Blaker JJ, Cartmell SH. Electroactive biomaterials: Vehicles for controlled delivery of therapeutic agents for drug delivery and tissue regeneration. Adv Drug Deliv Rev 2018; 129:148-168. [PMID: 29262296 DOI: 10.1016/j.addr.2017.12.012] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 11/24/2017] [Accepted: 12/16/2017] [Indexed: 01/09/2023]
Abstract
Electrical stimulation for delivery of biochemical agents such as genes, proteins and RNA molecules amongst others, holds great potential for controlled therapeutic delivery and in promoting tissue regeneration. Electroactive biomaterials have the capability of delivering these agents in a localized, controlled, responsive and efficient manner. These systems have also been combined for the delivery of both physical and biochemical cues and can be programmed to achieve enhanced effects on healing by establishing control over the microenvironment. This review focuses on current state-of-the-art research in electroactive-based materials towards the delivery of drugs and other therapeutic signalling agents for wound care treatment. Future directions and current challenges for developing effective electroactive approach based therapies for wound care are discussed.
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