1
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Zhang Y, Hao F, Liu Y, Yang M, Zhang B, Bai Z, Zhao B, Li X. Recent advances of copper-based metal phenolic networks in biomedical applications. Colloids Surf B Biointerfaces 2024; 244:114163. [PMID: 39154599 DOI: 10.1016/j.colsurfb.2024.114163] [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: 04/29/2024] [Revised: 08/04/2024] [Accepted: 08/12/2024] [Indexed: 08/20/2024]
Abstract
Metal-phenolic Networks (MPNs) are a novel class of nanomaterial developed gradually in recent years which are self-assembled by metal ions and polyphenolic ligands. Due to their environmental protection, good adhesion, and biocompatibility with green phenolic ligands, MPNs can be used as a new type of nanomaterial. They show excellent properties such as anti-inflammatory, antioxidant, antibacterial, and anticancer, and have been widely studied in the biomedical field. As one of the most common subclasses of the MPNs family, copper-based MPNs have been widely studied for drug delivery, Photodynamic Therapy (PDT), Chemo dynamic Therapy (CDT), antibacterial and anti-inflammatory, bone tissue regeneration, skin regeneration wound repair, and metal ion imaging. In this paper, the preparation strategies of different types of copper-based MPNs are reviewed. Then, the application status of copper-based MPNs in the biomedical field under different polyphenol ligands is introduced in detail. Finally, the existing problems and challenges of copper-based MPNs are discussed, as well as their future application prospects in the biomedical field.
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Affiliation(s)
- Ying Zhang
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China; Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China; Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Fengxiang Hao
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China; Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China; Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Yingyu Liu
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China; Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China; Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Mengqi Yang
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China; Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China; Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Bo Zhang
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China; Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China; Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Ziyang Bai
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China; Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China; Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Bin Zhao
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China; Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China.
| | - Xia Li
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China; Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China.
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2
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Szydlowska B, Ding Y, Moore C, Cai Z, Torres-Castanedo CG, Collins CP, Jones E, Hersam MC, Sun C, Ameer GA. Polydiolcitrate-MoS 2 Composite for 3D Printing Radio-Opaque, Bioresorbable Vascular Scaffolds. ACS APPLIED MATERIALS & INTERFACES 2024; 16:45422-45432. [PMID: 39102678 PMCID: PMC11368090 DOI: 10.1021/acsami.4c07364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Revised: 07/16/2024] [Accepted: 07/19/2024] [Indexed: 08/07/2024]
Abstract
Implantable polymeric biodegradable devices, such as biodegradable vascular scaffolds, cannot be fully visualized using standard X-ray-based techniques, compromising their performance due to malposition after deployment. To address this challenge, we describe a new radiopaque and photocurable liquid polymer-ceramic composite (mPDC-MoS2) consisting of methacrylated poly(1,12 dodecamethylene citrate) (mPDC) and molybdenum disulfide (MoS2) nanosheets. The composite was used as an ink with microcontinuous liquid interface production (μCLIP) to fabricate bioresorbable vascular scaffolds (BVS). Prints exhibited excellent crimping and expansion mechanics without strut failures and, importantly, with X-ray visibility in air and muscle tissue. Notably, MoS2 nanosheets displayed physical degradation over time in phosphate-buffered saline solution, suggesting the potential for producing radiopaque, fully bioresorbable devices. mPDC-MoS2 is a promising bioresorbable X-ray-visible composite material suitable for 3D printing medical devices, such as vascular scaffolds, that require noninvasive X-ray-based monitoring techniques for implantation and evaluation. This innovative biomaterial composite system holds significant promise for the development of biocompatible, fluoroscopically visible medical implants, potentially enhancing patient outcomes and reducing medical complications.
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Affiliation(s)
- Beata
M. Szydlowska
- Department
of Materials Science and Engineering, Northwestern
University, Evanston, Illinois 60208, United States
- Center
for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, Illinois 60208, United States
| | - Yonghui Ding
- Center
for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, Illinois 60208, United States
- Department
of Biomedical Engineering, Northwestern
University, Evanston, Illinois 60208, United States
| | - Connor Moore
- Center
for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, Illinois 60208, United States
| | - Zizhen Cai
- Department
of Materials Science and Engineering, Northwestern
University, Evanston, Illinois 60208, United States
| | - Carlos G. Torres-Castanedo
- Department
of Materials Science and Engineering, Northwestern
University, Evanston, Illinois 60208, United States
| | - Caralyn P. Collins
- Center
for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, Illinois 60208, United States
- Department
of Mechanical Engineering, Northwestern
University, Evanston, Illinois 60208, United States
| | - Evan Jones
- Center
for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, Illinois 60208, United States
- Department
of Mechanical Engineering, Northwestern
University, Evanston, Illinois 60208, United States
| | - Mark C. Hersam
- Department
of Materials Science and Engineering, Northwestern
University, Evanston, Illinois 60208, United States
- Center
for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, Illinois 60208, United States
- Department
of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department
of Electrical and Computer Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Cheng Sun
- Center
for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, Illinois 60208, United States
- Department
of Mechanical Engineering, Northwestern
University, Evanston, Illinois 60208, United States
| | - Guillermo A. Ameer
- Center
for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, Illinois 60208, United States
- Department
of Biomedical Engineering, Northwestern
University, Evanston, Illinois 60208, United States
- Department
of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, United States
- Simpson
Querrey Institute, Northwestern University, Evanston, Illinois 60208, United States
- Chemistry
for Life Processes Institute, Northwestern
University, Evanston, Illinois 60208, United States
- International
Institute for Nanotechnology, Northwestern
University, Evanston, Illinois 60208, United States
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3
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Kirimi MT, Hoare D, Holsgrove M, Czyzewski J, Mirzai N, Mercer JR, Neale SL. Detection of Blood Clots Using a Whole Stent as an Active Implantable Biosensor. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2304748. [PMID: 38342628 DOI: 10.1002/advs.202304748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/28/2023] [Indexed: 02/13/2024]
Abstract
Many cardiovascular problems stem from blockages that form within the vasculature and often treatment includes fitting a stent through percutaneous coronary intervention. This offers a minimally invasive therapy but re-occlusion through restenosis or thrombosis formation often occurs post-deployment. Research is ongoing into the creation of smart stents that can detect the occurrence of further problems. In this study, it is shown that selectively metalizing a non-conductive stent can create a set of electrodes that are capable of detecting a build-up of material around the stent. The associated increase in electrical impedance across the electrodes is measured, testing the stent with blood clot to mimic thrombosis. It is shown that the device is capable of sensing different amounts of occlusion. The stent can reproducibly sense the presence of clot showing a 16% +/-3% increase in impedance which is sufficient to reliably detect the clot when surrounded by explanted aorta (one sample t-test, p = 0.009, n = 9). It is demonstrated that this approach can be extended beyond the 3D printed prototypes by showing that it can be applied to a commercially available stent and it is believed that it can be further utilized by other types of medical implants.
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Affiliation(s)
- Mahmut Talha Kirimi
- Centre for Medical and Industrial Ultrasonics, James Watt School of Engineering, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Daniel Hoare
- Institute of Cardiovascular and Medical Sciences/British Heart Foundation, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Michael Holsgrove
- BioElectronics Unit, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Jakup Czyzewski
- BioElectronics Unit, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Nosrat Mirzai
- BioElectronics Unit, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - John R Mercer
- Institute of Cardiovascular and Medical Sciences/British Heart Foundation, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Steve L Neale
- Centre for Medical and Industrial Ultrasonics, James Watt School of Engineering, University of Glasgow, Glasgow, G12 8QQ, UK
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4
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Park J, Seo B, Jeong Y, Park I. A Review of Recent Advancements in Sensor-Integrated Medical Tools. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307427. [PMID: 38460177 PMCID: PMC11132050 DOI: 10.1002/advs.202307427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/26/2023] [Indexed: 03/11/2024]
Abstract
A medical tool is a general instrument intended for use in the prevention, diagnosis, and treatment of diseases in humans or other animals. Nowadays, sensors are widely employed in medical tools to analyze or quantify disease-related parameters for the diagnosis and monitoring of patients' diseases. Recent explosive advancements in sensor technologies have extended the integration and application of sensors in medical tools by providing more versatile in vivo sensing capabilities. These unique sensing capabilities, especially for medical tools for surgery or medical treatment, are getting more attention owing to the rapid growth of minimally invasive surgery. In this review, recent advancements in sensor-integrated medical tools are presented, and their necessity, use, and examples are comprehensively introduced. Specifically, medical tools often utilized for medical surgery or treatment, for example, medical needles, catheters, robotic surgery, sutures, endoscopes, and tubes, are covered, and in-depth discussions about the working mechanism used for each sensor-integrated medical tool are provided.
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Affiliation(s)
- Jaeho Park
- Department of Mechanical EngineeringKorea Advanced Institute of Science and Technology (KAIST)Daejeon34141South Korea
| | - Bokyung Seo
- Department of Mechanical EngineeringKorea Advanced Institute of Science and Technology (KAIST)Daejeon34141South Korea
| | - Yongrok Jeong
- Department of Mechanical EngineeringKorea Advanced Institute of Science and Technology (KAIST)Daejeon34141South Korea
- Radioisotope Research DivisionKorea Atomic Energy Research Institute (KAERI)Daejeon34057South Korea
| | - Inkyu Park
- Department of Mechanical EngineeringKorea Advanced Institute of Science and Technology (KAIST)Daejeon34141South Korea
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5
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Marshall AG, Neikirk K, Afolabi J, Mwesigwa N, Shao B, Kirabo A, Reddy AK, Hinton A. Update on the Use of Pulse Wave Velocity to Measure Age-Related Vascular Changes. Curr Hypertens Rep 2024; 26:131-140. [PMID: 38159167 PMCID: PMC10955453 DOI: 10.1007/s11906-023-01285-x] [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] [Accepted: 11/08/2023] [Indexed: 01/03/2024]
Abstract
PURPOSE OF REVIEW Pulse wave velocity (PWV) is an important and well-established measure of arterial stiffness that is strongly associated with aging. Age-related alterations in the elastic properties and integrity of arterial walls can lead to cardiovascular disease. PWV measurements play an important role in the early detection of these changes, as well as other cardiovascular disease risk factors, such as hypertension. This review provides a comprehensive summary of the current knowledge of the effects of aging on arterial stiffness, as measured by PWV. RECENT FINDINGS This review highlights recent findings showing the applicability of PWV analysis for investigating heart failure, hypertension, and other cardiovascular diseases, as well as cerebrovascular diseases and Alzheimer's disease. It also discusses the clinical implications of utilizing PWV to monitor treatment outcomes, various challenges in implementing PWV assessment in clinical practice, and the development of new technologies, including machine learning and artificial intelligence, which may improve the usefulness of PWV measurements in the future. Measuring arterial stiffness through PWV remains an important technique to study aging, especially as the technology continues to evolve. There is a clear need to leverage PWV to identify interventions that mitigate age-related increases in PWV, potentially improving CVD outcomes and promoting healthy vascular aging.
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Affiliation(s)
- Andrea G Marshall
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
| | - Kit Neikirk
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
| | - Jeremiah Afolabi
- Department of Medicine, Vanderbilt University Medical Center, 750 Robinson Research Building, 2200 Pierce Ave, Nashville, TN, 37232-0615, USA
| | - Naome Mwesigwa
- Department of Medicine, Vanderbilt University Medical Center, 750 Robinson Research Building, 2200 Pierce Ave, Nashville, TN, 37232-0615, USA
| | - Bryanna Shao
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
| | - Annet Kirabo
- Department of Medicine, Vanderbilt University Medical Center, 750 Robinson Research Building, 2200 Pierce Ave, Nashville, TN, 37232-0615, USA
| | - Anilkumar K Reddy
- Department of Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
| | - Antentor Hinton
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA.
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6
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Kaminski C, Beardslee LA, Rajani R. Sensorized Endovascular Technologies: Additional Data to Enhance Decision-Making. Ann Vasc Surg 2024; 99:105-116. [PMID: 37922964 DOI: 10.1016/j.avsg.2023.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 09/29/2023] [Accepted: 10/07/2023] [Indexed: 11/07/2023]
Abstract
BACKGROUND Current endovascular procedures rely mostly on anatomic information, guided by fluoroscopy, to perform interventions (i.e. angioplasty, stent placement, coils). However, the structural parameters provided by these imaging technologies do not provide any physiological data on either the disease state or efficacy of intervention. Additional endovascular tools are needed to collect physiologic and other both anatomic and nonanatomic data to further individualize endovascular interventions with the ultimate goal of improving patient outcomes. This review details the current state of the art for these sensorized endovascular technologies and details systems under development with the aim of identifying gaps and new directions. The objective of this review was to survey the Vascular Surgery literature, engineering literature, and commercially available products to determine what exists in terms of sensor-enabled endovascular devices and where gaps and opportunities exist for further sensor integration. METHODS Search terms were entered into search engines such as Google and Google Scholar to identify endovascular devices containing sensors. A variety of terms were used including directly search for items such as "sensor-enabled endovascular devices" and then also completing more refined searches bases on areas of interest (i.e. fractional flow reserve, navigation, retrograde endovascular balloon occlusion of the aorta, etc.). For the most part, systems were included where the sensor was mounted directly onto the catheter and implantable sensors such as those that have been investigated for use with stents have been excluded. RESULTS The authors were able to identify a body of literature in the area of endovascular devices that contain sensors to measure physiologic information. However, areas where additional sensing capabilities may be useful were identified. CONCLUSIONS Several different types of sensors and sensing systems were identified that have been integrated with endovascular catheters. Although a great deal of work has been done in this field, there are additional useful data that could be obtained from additional novel sensing technologies. Furthermore, significant effort needs to be allocated to carefully studying how these new technologies can be employed to actually improve patient outcomes.
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Affiliation(s)
- Candice Kaminski
- Department of Surgery, Emory University School of Medicine, Atlanta, GA
| | - Luke A Beardslee
- Department of Surgery, Emory University School of Medicine, Atlanta, GA
| | - Ravi Rajani
- Department of Surgery, Emory University School of Medicine, Atlanta, GA.
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7
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Oyunbaatar NE, Kim DS, Shanmugasundaram A, Kim SH, Jeong YJ, Jo J, Kwon K, Choi E, Lee DW. Implantable Self-Reporting Stents for Detecting In-Stent Restenosis and Cardiac Functional Dynamics. ACS Sens 2023; 8:4542-4553. [PMID: 38052588 DOI: 10.1021/acssensors.3c01313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
Despite the increasing number of stents implanted each year worldwide, patients remain at high risk for developing in-stent restenosis. Various self-reporting stents have been developed to address this challenge, but their practical utility has been limited by low sensitivity and limited data collection. Herein, we propose a next-generation self-reporting stent that can monitor blood pressure and blood flow inside the blood arteries. This proposed self-reporting stent utilizes a larger inductor coil encapsulated on the entire surface of the stent strut, resulting in a 2-fold increase in the sensing resolution and coupling distance between the sensor and external antenna. The dual-pressure sensors enable the detection of blood flow in situ. The feasibility of the proposed self-reporting stent is successfully demonstrated through in vivo analysis in rats, verifying its biocompatibility and multifunctional utilities. This multifunctional self-reporting stent has the potential to greatly improve cardiovascular care by providing real-time monitoring and unprecedented insight into the functional dynamics of the heart.
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Affiliation(s)
- Nomin-Erdene Oyunbaatar
- School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Advanced Medical Device Research Center for Cardiovascular Disease, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Dong-Su Kim
- School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Green Energy & Nano Technology R&D Group, Korea Institute of Industrial Technology (KITECH), Gwangju 61012, Republic of Korea
| | - Arunkumar Shanmugasundaram
- School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Advanced Medical Device Research Center for Cardiovascular Disease, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Su-Hwan Kim
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Yun-Jin Jeong
- School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Advanced Medical Device Research Center for Cardiovascular Disease, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Juyeong Jo
- Korea Institute of Medical Microrobotics, Cheomdangwagi-ro 208-beon-gil, Buk-gu, Gwangju 61011, Republic of Korea
| | - Kyeongha Kwon
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Eunpyo Choi
- School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Korea Institute of Medical Microrobotics, Cheomdangwagi-ro 208-beon-gil, Buk-gu, Gwangju 61011, Republic of Korea
| | - Dong-Weon Lee
- School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Green Energy & Nano Technology R&D Group, Korea Institute of Industrial Technology (KITECH), Gwangju 61012, Republic of Korea
- Center for Next-Generation Sensor Research and Development, Chonnam National University, Gwangju 61186, Republic of Korea
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8
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Szydlowska BM, Ding Y, Moore C, Cai Z, Torres-Castanedo CG, Jones E, Hersam MC, Sun C, Ameer GA. A polydiolcitrate-MoS 2 composite for 3D printing Radio-opaque, Bioresorbable Vascular Scaffolds. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.27.564364. [PMID: 37961681 PMCID: PMC10634906 DOI: 10.1101/2023.10.27.564364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Implantable polymeric biodegradable devices, such as biodegradable vascular stents or scaffolds, cannot be fully visualized using standard X-ray-based techniques, compromising their performance due to malposition after deployment. To address this challenge, we describe composites of methacrylated poly(1,12 dodecamethylene citrate) (mPDC) and MoS2 nanosheets to fabricate novel X-ray visible radiopaque and photocurable liquid polymer-ceramic composite (mPDC-MoS2). The composite was used as an ink with micro continuous liquid interface production (μCLIP) to fabricate bioresorbable vascular scaffolds (BVS). Prints exhibited excellent crimping and expansion mechanics without strut failures and, importantly, required X-ray visibility in air and muscle tissue. Notably, MoS2 nanosheets displayed physical degradation over time in a PBS environment, indicating the potential for producing bioresorbable devices. mPDC-MoS2 is a promising bioresorbable X-ray-visible composite material suitable for 3D printing medical devices, particularly vascular scaffolds or stents, that require non-invasive X-ray-based monitoring techniques for implantation and evaluation. This innovative composite system holds significant promise for the development of biocompatible and highly visible medical implants, potentially enhancing patient outcomes and reducing medical complications.
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Affiliation(s)
- Beata M. Szydlowska
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Yonghui Ding
- Center for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, IL 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Connor Moore
- Center for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, IL 60208, USA
| | - Zizhen Cai
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | | | - Evan Jones
- Center for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, IL 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Mark C. Hersam
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Cheng Sun
- Center for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, IL 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Guillermo A. Ameer
- Center for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, IL 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
- Simpson Querrey Institute, Northwestern University, Evanston, IL 60208, USA
- Chemistry for Life Processes Institute, Northwestern University, IL, 60208, USA
- International Institute for Nanotechnology, Northwestern University, IL, 60208, USA
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9
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Kingsmore DB, Thomson P, Stevenson K. Screening and surveillance of venous stenosis in AVG: Is it time to rethink our assumptions? J Vasc Access 2023; 24:873-878. [PMID: 34763539 DOI: 10.1177/11297298211055611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Guidelines make no firm recommendations about surveillance of arteriovenous grafts as several randomised trials (RCT) have not shown a clear benefit in patency. However a more thorough review of these RCT based on epidemiological principles reveals significant limitations. In particular a key weakness of these older studies is the interventions performed for venous stenosis detected that was largely angioplasty. However, the observational data of modern stent-grafts shows a clear benefit over angioplasty, and thus seems to suggest that a modern well considered RCT is now mandated.
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Affiliation(s)
- David B Kingsmore
- Hon Prof of Surgery, Univeristy of Glasgow, UK
- Department of Vascular Surgery, Queen Elizabeth University Hospital, Glasgow, UK
| | - Peter Thomson
- Department of Nephrology, Queen Elizabeth University Hospital, Glasgow, UK
| | - Karen Stevenson
- Department of Transplantation, Queen Elizabeth University Hospital, Glasgow, UK
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10
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Tai YD, Widdicombe B, Unnithan RR, Grayden DB, John SE. Wearable Transmitter Coil Design for Inductive Wireless Power Transfer to Implantable Devices. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2023; 2023:1-4. [PMID: 38082593 DOI: 10.1109/embc40787.2023.10340600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Wireless endovascular sensors and stimulators are emerging biomedical technologies for applications such as endovascular pressure monitoring, hyperthermia, and neural stimulations. Recently, coil-shaped stents have been proposed for inductive power transfer to endovascular devices using the stent as a receiver. However, less work has been done on the external transmitter components, so the maximum power transferable remains unknown. In this work, we design and evaluate a wearable transmitter coil that allows 50 mW power transfer in simulation.Clinical Relevance-This allows more accurate measurements and precise control of endovascular devices.
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11
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Teng S, Zhu Z, Li Y, Hu X, Fang Z, Liu Z, Zhou S. A novel glycyrrhizin acid-coated stent reduces neointimal formation in a rabbit iliac artery model. Front Pharmacol 2023; 14:1159779. [PMID: 37266147 PMCID: PMC10229815 DOI: 10.3389/fphar.2023.1159779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 04/20/2023] [Indexed: 06/03/2023] Open
Abstract
Introduction: Most drug-eluting stents (DESs) inhibit intimal hyperplasia but impair re-endothelialization. This study aimed to evaluate in vivo strut coverage and neointimal growth in a new glycyrrhizin acid (GA)-eluting stent. Methods: New Zealand White rabbits (n = 20) with atherosclerotic plaques were randomly divided into three groups based on implanted iliac artery stents: bare-metal stents (BMSs), rapamycin-eluting stents, and GA-eluting stents. After the in vivo intravascular ultrasound (IVUS) assessment at 28 days, the vessels were harvested for scanning electron microscopy (SEM) and histology. After 4 weeks of follow-up, the stent and external elastic lamina (EEL) areas were compared among the groups. Results: The rapamycin- or GA-eluting stents significantly reduced the neointimal area compared with BMSs, though GA-eluting stents had the lowest reduction. There were more uncovered struts for rapamycin-eluting stents than those for GA-eluting stents and bare-metal stents. The endothelial nitric oxide synthase (eNOS) expression in GA-eluting stents was much higher than that in BMSs and rapamycin-eluting stents, even though the endothelial coverage between struts was equivalent between BMSs and GA-eluting stents. Moreover, GA-eluting stents markedly promoted re-endothelialization and improved arterial healing compared to rapamycin-eluting stents in a rabbit atherosclerotic model. Conclusion: In conclusion, the novel GA-coated stent used in this study inhibited intimal hyperplasia and promoted re-endothelialization.
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Affiliation(s)
- Shuai Teng
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhaowei Zhu
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yang Li
- Department of Vascular Surgery, Xiamen Cardiovascular Hospital, Xiamen University, Xiamen, Fujian, China
| | - Xinqun Hu
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhenfei Fang
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhenjiang Liu
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shenghua Zhou
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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12
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Wasti S, Lee IH, Kim S, Lee JH, Kim H. Ethical and legal challenges in nanomedical innovations: a scoping review. Front Genet 2023; 14:1163392. [PMID: 37252668 PMCID: PMC10213273 DOI: 10.3389/fgene.2023.1163392] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 04/11/2023] [Indexed: 05/31/2023] Open
Abstract
Background: Rapid advancements in research and development related to nanomedical technology raise various ethical and legal challenges in areas relevant to disease detection, diagnosis, and treatment. This study aims to outline the existing literature, covering issues associated with emerging nanomedicine and related clinical research, and identify implications for the responsible advancement and integration of nanomedicine and nanomedical technology throughout medical networks in the future. Methods: A scoping review, designed to cover scientific, ethical, and legal literature associated with nanomedical technology, was conducted, generating and analyzing 27 peer-reviewed articles published between 2007-2020. Results: Results indicate that articles referencing ethical and legal issues related to nanomedical technology were concerned with six key areas: 1) harm exposure and potential risks to health, 2) consent to nano-research, 3) privacy, 4) access to nanomedical technology and potential nanomedical therapies, 5) classification of nanomedical products in relation to the research and development of nanomedical technology, and 6) the precautionary principle as it relates to the research and development of nanomedical technology. Conclusion: This review of the literature suggests that few practical solutions are comprehensive enough to allay the ethical and legal concerns surrounding research and development in fields related to nanomedical technology, especially as it continues to evolve and contribute to future innovations in medicine. It is also clearly apparent that a more coordinated approach is required to ensure global standards of practice governing the study and development of nanomedical technology, especially as discussions surrounding the regulation of nanomedical research throughout the literature are mainly confined to systems of governance in the United States.
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Affiliation(s)
- Sophia Wasti
- Asian Institute of Bioethics and Health Law, Yonsei University, Seoul, Republic of Korea
| | - Il Ho Lee
- Institute for Legal Studies, Yonsei University, Seoul, Republic of Korea
| | - Sumin Kim
- Korea National Institute for Bioethics Policy, Seoul, Republic of Korea
| | - Jae-Hyun Lee
- Advanced Science Institute, Yonsei University, Seoul, Republic of Korea
- Institute for Basic Science (IBS) Center for Nanomedicine, Seoul, Republic of Korea
| | - Hannah Kim
- Asian Institute of Bioethics and Health Law, Yonsei University, Seoul, Republic of Korea
- College of Medicine, Division of Medical Humanities and Social Science, Yonsei University, Seoul, Republic of Korea
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13
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Liu W, Wang X, Feng Y. Restoring endothelial function: shedding light on cardiovascular stent development. Biomater Sci 2023. [PMID: 37161519 DOI: 10.1039/d3bm00390f] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Complete endothelialization is highly important for maintaining long-term patency and avoiding subsequent complications in implanting cardiovascular stents. It not only refers to endothelial cells (ECs) fully covering the inserted stents, but also includes the newly formed endothelium, which could exert physiological functions, such as anti-thrombosis and anti-stenosis. Clinical outcomes have indicated that endothelial dysfunction, especially the insufficiency of antithrombotic and barrier functions, is responsible for stent failure. Learning from vascular pathophysiology, endothelial dysfunction on stents is closely linked to the microenvironment of ECs. Evidence points to inflammatory responses, oxidative stress, altered hemodynamic shear stress, and impaired endothelial barrier affecting the normal growth of ECs, which are the four major causes of endothelial dysfunction. The related molecular mechanisms and efforts dedicated to improving the endothelial function are emphasized in this review. From the perspective of endothelial function, the design principles, advantages, and disadvantages behind current stents are introduced to enlighten the development of new-generation stents, aiming to offer new alternatives for restoring endothelial function.
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Affiliation(s)
- Wen Liu
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, P. R. China.
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin), Weijin Road 92, Tianjin 300072, P. R. China
| | - Xiaoyu Wang
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, P. R. China.
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin), Weijin Road 92, Tianjin 300072, P. R. China
| | - Yakai Feng
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, P. R. China.
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin), Weijin Road 92, Tianjin 300072, P. R. China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Weijin Road 92, Tianjin 300072, P. R. China
- Frontiers Science Center for Synthetic Biology, Tianjin University, Weijin Road 92, Tianjin 300072, China
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14
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Gregory DA, Fricker ATR, Mitrev P, Ray M, Asare E, Sim D, Larpnimitchai S, Zhang Z, Ma J, Tetali SSV, Roy I. Additive Manufacturing of Polyhydroxyalkanoate-Based Blends Using Fused Deposition Modelling for the Development of Biomedical Devices. J Funct Biomater 2023; 14:jfb14010040. [PMID: 36662087 PMCID: PMC9865795 DOI: 10.3390/jfb14010040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/26/2022] [Accepted: 12/30/2022] [Indexed: 01/12/2023] Open
Abstract
In the last few decades Additive Manufacturing has advanced and is becoming important for biomedical applications. In this study we look at a variety of biomedical devices including, bone implants, tooth implants, osteochondral tissue repair patches, general tissue repair patches, nerve guidance conduits (NGCs) and coronary artery stents to which fused deposition modelling (FDM) can be applied. We have proposed CAD designs for these devices and employed a cost-effective 3D printer to fabricate proof-of-concept prototypes. We highlight issues with current CAD design and slicing and suggest optimisations of more complex designs targeted towards biomedical applications. We demonstrate the ability to print patient specific implants from real CT scans and reconstruct missing structures by means of mirroring and mesh mixing. A blend of Polyhydroxyalkanoates (PHAs), a family of biocompatible and bioresorbable natural polymers and Poly(L-lactic acid) (PLLA), a known bioresorbable medical polymer is used. Our characterisation of the PLA/PHA filament suggest that its tensile properties might be useful to applications such as stents, NGCs, and bone scaffolds. In addition to this, the proof-of-concept work for other applications shows that FDM is very useful for a large variety of other soft tissue applications, however other more elastomeric MCL-PHAs need to be used.
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15
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Cao D, Ding J. Recent advances in regenerative biomaterials. Regen Biomater 2022; 9:rbac098. [PMID: 36518879 PMCID: PMC9745784 DOI: 10.1093/rb/rbac098] [Citation(s) in RCA: 73] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 11/23/2022] [Accepted: 12/01/2022] [Indexed: 07/22/2023] Open
Abstract
Nowadays, biomaterials have evolved from the inert supports or functional substitutes to the bioactive materials able to trigger or promote the regenerative potential of tissues. The interdisciplinary progress has broadened the definition of 'biomaterials', and a typical new insight is the concept of tissue induction biomaterials. The term 'regenerative biomaterials' and thus the contents of this article are relevant to yet beyond tissue induction biomaterials. This review summarizes the recent progress of medical materials including metals, ceramics, hydrogels, other polymers and bio-derived materials. As the application aspects are concerned, this article introduces regenerative biomaterials for bone and cartilage regeneration, cardiovascular repair, 3D bioprinting, wound healing and medical cosmetology. Cell-biomaterial interactions are highlighted. Since the global pandemic of coronavirus disease 2019, the review particularly mentions biomaterials for public health emergency. In the last section, perspectives are suggested: (i) creation of new materials is the source of innovation; (ii) modification of existing materials is an effective strategy for performance improvement; (iii) biomaterial degradation and tissue regeneration are required to be harmonious with each other; (iv) host responses can significantly influence the clinical outcomes; (v) the long-term outcomes should be paid more attention to; (vi) the noninvasive approaches for monitoring in vivo dynamic evolution are required to be developed; (vii) public health emergencies call for more research and development of biomaterials; and (viii) clinical translation needs to be pushed forward in a full-chain way. In the future, more new insights are expected to be shed into the brilliant field-regenerative biomaterials.
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Affiliation(s)
- Dinglingge Cao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
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16
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Ding Y, Fu R, Collins CP, Yoda SF, Sun C, Ameer GA. 3D-Printed Radiopaque Bioresorbable Stents to Improve Device Visualization. Adv Healthc Mater 2022; 11:e2201955. [PMID: 36168854 PMCID: PMC9742307 DOI: 10.1002/adhm.202201955] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/06/2022] [Indexed: 12/14/2022]
Abstract
Bioresorbable stents (BRS) hold great promise for the treatment of many life-threatening luminal diseases. Tracking and monitoring of stents in vivo is critical for avoiding their malposition and inadequate expansion, which often leads to complications and stent failure. However, obtaining high X-ray visibility of polymeric BRS has been challenging because of their intrinsic radiolucency. This study demonstrates the use of photopolymerization-based 3D printing technique to fabricate radiopaque BRS by incorporating iodixanol, a clinical contrast agent, into a bioresorbable citrate-based polymer ink. The successful volumetric dispersion of the iodixanol through the 3D-printing process confers strong X-ray visibility of the produced BRS. Following in vitro degradation, the 3D-printed BRS embedded in chicken muscle maintains high X-ray visibility for at least 4 weeks. Importantly, the 3D-printed radiopaque BRS demonstrates good cytocompatibility and strong mechanical competence in crimping and expansion, which is essential for minimally invasive stent deployment. In addition, it is found that higher loading concentrations of iodixanol, e.g. 10 wt.%, results in more strut fractures in stent crimping and expansion. To conclude, this study introduces a facile strategy to fabricate radiopaque BRS through the incorporation of iodixanol in the 3D printing process, which could potentially increase the clinical success of BRS.
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Affiliation(s)
- Yonghui Ding
- Center for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, IL, 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Rao Fu
- Center for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, IL, 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Caralyn Paige Collins
- Center for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, IL, 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Sarah-Fatime Yoda
- Center for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, IL, 60208, USA
| | - Cheng Sun
- Center for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, IL, 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Guillermo A Ameer
- Center for Advanced Regenerative Engineering (CARE), Northwestern University, Evanston, IL, 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
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17
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Zong J, He Q, Liu Y, Qiu M, Wu J, Hu B. Advances in the development of biodegradable coronary stents: A translational perspective. Mater Today Bio 2022; 16:100368. [PMID: 35937578 PMCID: PMC9352968 DOI: 10.1016/j.mtbio.2022.100368] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/25/2022] [Accepted: 07/13/2022] [Indexed: 11/17/2022] Open
Abstract
Implantation of cardiovascular stents is an important therapeutic method to treat coronary artery diseases. Bare-metal and drug-eluting stents show promising clinical outcomes, however, their permanent presence may create complications. In recent years, numerous preclinical and clinical trials have evaluated the properties of bioresorbable stents, including polymer and magnesium-based stents. Three-dimensional (3D) printed-shape-memory polymeric materials enable the self-deployment of stents and provide a novel approach for individualized treatment. Novel bioresorbable metallic stents such as iron- and zinc-based stents have also been investigated and refined. However, the development of novel bioresorbable stents accompanied by clinical translation remains time-consuming and challenging. This review comprehensively summarizes the development of bioresorbable stents based on their preclinical/clinical trials and highlights translational research as well as novel technologies for stents (e.g., bioresorbable electronic stents integrated with biosensors). These findings are expected to inspire the design of novel stents and optimization approaches to improve the efficacy of treatments for cardiovascular diseases. Bioresorbable stents can overcome the limitations of non-degradable stents. 3D printing of shape-memory polymeric stents can lead to better clinical outcomes. Advances in Mg-, Fe- and Zn-based stents from a translational perspective. Electronic stents integrated with biosensors can covey stent status in real time. Development in the assessment of stent performance in vivo.
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Affiliation(s)
- Jiabin Zong
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Quanwei He
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yuxiao Liu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Min Qiu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jiehong Wu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Corresponding author.
| | - Bo Hu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Corresponding author.
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18
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Keser K, Soylu MÇ. Detection of Phenylarsine Oxide in Drinking Water Using an Impedimetric Electrochemical Sensor with Gelatin-Based Solid Electrolyte Enriched with Mercaptoethanol: A Novel Prospective Green Biosensor Methodology. ACS OMEGA 2022; 7:43111-43121. [PMID: 36467944 PMCID: PMC9713887 DOI: 10.1021/acsomega.2c05516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 11/04/2022] [Indexed: 06/17/2023]
Abstract
A simple, inexpensive, rapid, and label-free detection of phenylarsine oxide (PAO) in the field is a significant and unmet need because of its fatally acute and chronic effects on human health. A simple, fast, sensitive, and relatively low-cost arsenic detection system with an eco-friendly sensor could fill this gap. To monitor arsenic in situ, a reliable, portable impedimetric electrochemical sensor is the most suitable platform, which is real-time, fast, low-cost, and easy to design and use and has high sensitivity at low detection limits in the nanogram per mL range. The detection system in this study has a patent-applied green sensor with minimum harm to nature and the potential to dissolve in nature. The electrode containing 15 mL of distilled water (DIW) + 2 g gelatin + 1.75 g glycerol was determined to be the most suitable for determining the amount of inorganic arsenic in the range of 1-100 ng/mL using a gelatin-based solid electrochemical sensor enriched with 2-mercaptoethanol. Impedance measurements were performed to analyze the stability of the sensor in both deionized water and drinking water, as well as for arsenic detection. Among the procedures examined, the procedure prepared with 15 mL DIW + 2 g glycerol + 1.75 g gelatin resulted in the best stability in aqueous medium and in sensitivity with resistance changes (-ΔR ct (%)) of 12% (±0.62%), 26% (±2.3%), and 40% (±3.8%) for the concentrations of 1, 10, and 100 ng/mL PAO in drinking water, respectively. With this detection methodology, there is the potential to detect not only arsenic but also other heavy metals in waters and different biomarkers in human fluids.
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Affiliation(s)
- Kübra Keser
- Biomedical
Device Technologies, Simav Vocational School, Kutahya Dumlupinar University, Simav, Kütahya43500, Turkey
| | - Mehmet Çağrı Soylu
- Biological
and Medical Diagnostic Sensors Laboratory (BioMeD Sensors Lab), Department
of Biomedical Engineering, Erciyes University, Kayseri38039, Turkey
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19
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Vallejo-Zamora JA, Vega-Cantu YI, Rodriguez C, Cordell GA, Rodriguez-Garcia A. Drug-Eluting, Bioresorbable Cardiovascular Stents─Challenges and Perspectives. ACS APPLIED BIO MATERIALS 2022; 5:4701-4717. [PMID: 36150217 DOI: 10.1021/acsabm.2c00551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Globally, the leading causes of natural death are attributed to coronary heart disease and type 1 and type 2 diabetes. High blood pressure levels, high cholesterol levels, smoking, and poor eating habits lead to the agglomeration of plaque in the arteries, reducing the blood flow. The implantation of devices used to unclog vessels, known as stents, sometimes results in a lack of irrigation due to the excessive proliferation of endothelial tissue within the blood vessels and is known as restenosis. The use of drug-eluting stents (DESs) to deliver antiproliferative drugs has led to the development of different encapsulation techniques. However, due to the potency of the drugs used in the initial stent designs, a chronic inflammatory reaction of the arterial wall known as thrombosis can cause a myocardial infarction (MI). One of the most promising drugs to reduce this risk is everolimus, which can be encapsulated in lipid systems for controlled release directly into the artery. This review aims to discuss the current status of stent design, fabrication, and functionalization. Variables such as the mechanical properties, metals and their alloys, drug encapsulation and controlled elution, and stent degradation are also addressed. Additionally, this review covers the use of polymeric surface coatings on stents and the recent advances in layer-by-layer coating and drug delivery. The advances in nanoencapsulation techniques such as liposomes and micro- and nanoemulsions and their functionalization in bioresorbable, drug-eluting stents are also highlighted.
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Affiliation(s)
- Julio A Vallejo-Zamora
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Ave. Eugenio Garza Sada 2501, Monterrey, Nuevo León64849, Mexico
| | - Yadira I Vega-Cantu
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Ave. Eugenio Garza Sada 2501, Monterrey, Nuevo León64849, Mexico
| | - Ciro Rodriguez
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Ave. Eugenio Garza Sada 2501, Monterrey, Nuevo León64849, Mexico
- Laboratorio Nacional de Manufactura Aditiva y Digital (MADIT), Apodaca, Nuevo León66629, Mexico
| | - Geoffrey A Cordell
- Natural Products, Inc., Evanston, Illinois60201, United States
- College of Pharmacy, University of Florida, Gainesville, Florida32610, United States
| | - Aida Rodriguez-Garcia
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Ave. Eugenio Garza Sada 2501, Monterrey, Nuevo León64849, Mexico
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Biológicas, Instituto de Biotecnología, Ciudad Universitaria, Ave. Pedro de Alba S/N, San Nicolás de los Garza, Nuevo León66455, Mexico
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20
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Veletić M, Apu EH, Simić M, Bergsland J, Balasingham I, Contag CH, Ashammakhi N. Implants with Sensing Capabilities. Chem Rev 2022; 122:16329-16363. [PMID: 35981266 DOI: 10.1021/acs.chemrev.2c00005] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Because of the aging human population and increased numbers of surgical procedures being performed, there is a growing number of biomedical devices being implanted each year. Although the benefits of implants are significant, there are risks to having foreign materials in the body that may lead to complications that may remain undetectable until a time at which the damage done becomes irreversible. To address this challenge, advances in implantable sensors may enable early detection of even minor changes in the implants or the surrounding tissues and provide early cues for intervention. Therefore, integrating sensors with implants will enable real-time monitoring and lead to improvements in implant function. Sensor integration has been mostly applied to cardiovascular, neural, and orthopedic implants, and advances in combined implant-sensor devices have been significant, yet there are needs still to be addressed. Sensor-integrating implants are still in their infancy; however, some have already made it to the clinic. With an interdisciplinary approach, these sensor-integrating devices will become more efficient, providing clear paths to clinical translation in the future.
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Affiliation(s)
- Mladen Veletić
- Department of Electronic Systems, Norwegian University of Science and Technology, 7491 Trondheim, Norway.,The Intervention Centre, Technology and Innovation Clinic, Oslo University Hospital, 0372 Oslo, Norway
| | - Ehsanul Hoque Apu
- Institute for Quantitative Health Science and Engineering (IQ) and Department of Biomedical Engineering (BME), Michigan State University, East Lansing, Michigan 48824, United States.,Division of Hematology and Oncology, Department of Internal Medicine, Michigan Medicine, University of Michigan, Ann Arbor, Michigan 48105, United States
| | - Mitar Simić
- Faculty of Electrical Engineering, University of Banja Luka, 78000 Banja Luka, Bosnia and Herzegovina
| | - Jacob Bergsland
- The Intervention Centre, Technology and Innovation Clinic, Oslo University Hospital, 0372 Oslo, Norway
| | - Ilangko Balasingham
- Department of Electronic Systems, Norwegian University of Science and Technology, 7491 Trondheim, Norway.,The Intervention Centre, Technology and Innovation Clinic, Oslo University Hospital, 0372 Oslo, Norway
| | - Christopher H Contag
- Institute for Quantitative Health Science and Engineering (IQ) and Department of Biomedical Engineering (BME), Michigan State University, East Lansing, Michigan 48824, United States
| | - Nureddin Ashammakhi
- Institute for Quantitative Health Science and Engineering (IQ) and Department of Biomedical Engineering (BME), Michigan State University, East Lansing, Michigan 48824, United States.,Department of Bioengineering, University of California, Los Angeles, California 90095, United States
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21
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Băilă DI, Păcurar R, Savu T, Zaharia C, Trușcă R, Nemeș O, Górski F, Păcurar A, Pleșa A, Sabău E. Mechanical and Wetting Properties of Ta 2O 5 and ZnO Coatings on Alloy Substrate of Cardiovascular Stents Manufactured by Casting and DMLS. MATERIALS (BASEL, SWITZERLAND) 2022; 15:5580. [PMID: 36013717 PMCID: PMC9412485 DOI: 10.3390/ma15165580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/11/2022] [Accepted: 08/12/2022] [Indexed: 06/15/2023]
Abstract
In the last years, additive manufacturing technologies have been developed, especially direct metal laser sintering, and used in the dental and medical implant domains. Cardiovascular stents have evolved from bioinert, bare metal cages to biomimetic devices that promote tissue regeneration or healing. In this paper, comparisons concerning mechanical properties between Co-Cr alloy and cast 304L stainless steel were realized using FEM analysis, necessary for manufacturing cardiovascular stents by DMLS technology using Co-Cr alloy. The purpose of this paper consists of the evaluation of the contact angle at the interface of the Co-Cr alloy manufactured by DMLS, respectively, cast stainless steel 304L, and thin film deposition realized by the e-gun method (Ta2O5 and ZnO). Scanning electronic microscopy SEM and EDX techniques were employed for morphological investigation of the sintered samples manufactured by the DMLS process. They were also used for semi-quantitative and qualitative chemical and metallographic analyses. The e-gun coating was used to obtain thin films with the nanometer order of Ta2O5 and ZnO with a protective role to improve the corrosion resistance, roughness, and antiseptic role.
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Affiliation(s)
- Diana-Irinel Băilă
- Department of Manufacturing Engineering, Faculty of Industrial Engineering and Robotics, University Politehnica of Bucharest, Blv. Splaiul Independenței, No. 313, Sector 6, 060042 Bucharest, Romania
| | - Răzvan Păcurar
- Department of Manufacturing Engineering, Faculty of Industrial Engineering, Robotics and Production Management, Technical University of Cluj-Napoca, Blv. Muncii, No. 103-105, 400641 Cluj-Napoca, Romania
| | - Tom Savu
- Department of Manufacturing Engineering, Faculty of Industrial Engineering and Robotics, University Politehnica of Bucharest, Blv. Splaiul Independenței, No. 313, Sector 6, 060042 Bucharest, Romania
| | - Cătălin Zaharia
- Advanced Polymer Materials Group, Department of Bioresources and Polymer Science, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
| | - Roxana Trușcă
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Blv. Splaiul Independenței, No. 313, Sector 6, 060042 Bucharest, Romania
| | - Ovidiu Nemeș
- Department of Environmental Engineering and Sustainable Development Entrepreneurship, Faculty of Materials and Environmental Engineering, Technical University of Cluj-Napoca, Blv. Muncii, No. 103-105, 400641 Cluj-Napoca, Romania
| | - Filip Górski
- Faculty of Mechanical Engineering, Poznan University of Technology, 60-965 Poznan, Poland
| | - Ancuța Păcurar
- Department of Manufacturing Engineering, Faculty of Industrial Engineering, Robotics and Production Management, Technical University of Cluj-Napoca, Blv. Muncii, No. 103-105, 400641 Cluj-Napoca, Romania
| | - Alin Pleșa
- Department of Mechatronics and Machine Dynamics, Faculty of Automotive, Mechatronics and Mechanical Engineering, Technical University of Cluj-Napoca, Blv. Muncii, No. 103-105, 400641 Cluj-Napoca, Romania
| | - Emilia Sabău
- Department of Manufacturing Engineering, Faculty of Industrial Engineering, Robotics and Production Management, Technical University of Cluj-Napoca, Blv. Muncii, No. 103-105, 400641 Cluj-Napoca, Romania
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22
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Li X, Zheng L, Zhang B, Deng ZY, Luo T. The Structure Basis of Phytochemicals as Metabolic Signals for Combating Obesity. Front Nutr 2022; 9:913883. [PMID: 35769384 PMCID: PMC9234462 DOI: 10.3389/fnut.2022.913883] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/23/2022] [Indexed: 12/12/2022] Open
Abstract
The consumption of phytochemicals, bioactive compounds in fruits and vegetables, has been demonstrated to ameliorate obesity and related metabolic symptoms by regulating specific metabolic pathways. This review summarizes the progress made in our understanding of the potential of phytochemicals as metabolic signals: we discuss herein selected molecular mechanisms which are involved in the occurrence of obesity that may be regulated by phytochemicals. The focus of our review highlights the regulation of transcription factors toll like receptor 4 (TLR4), nuclear factor (erythroid-derived 2)-like 2 (Nrf2), the peroxisome proliferator-activated receptors (PPARs), fat mass and obesity-associated protein (FTO) and regulation of microRNAs (miRNA). In this review, the effect of phytochemicals on signaling pathways involved in obesity were discussed on the basis of their chemical structure, suggesting molecular mechanisms for how phytochemicals may impact these signaling pathways. For example, compounds with an isothiocyanate group or an α, β-unsaturated carbonyl group may interact with the TLR4 signaling pathway. Regarding Nrf2, we examine compounds possessing an α, β-unsaturated carbonyl group which binds covalently with the cysteine thiols of Keap1. Additionally, phytochemical activation of PPARs, FTO and miRNAs were summarized. This information may be of value to better understand how specific phytochemicals interact with specific signaling pathways and help guide the development of new drugs to combat obesity and related metabolic diseases.
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Cao BL, Mervis J, Adams P, Roberts P, Ayer J. Branch pulmonary artery stent angioplasty in infants less than 10 kg. INTERNATIONAL JOURNAL OF CARDIOLOGY CONGENITAL HEART DISEASE 2022. [DOI: 10.1016/j.ijcchd.2022.100368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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24
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Li L, Liu S, Tan J, Wei L, Wu D, Gao S, Weng Y, Chen J. Recent advance in treatment of atherosclerosis: Key targets and plaque-positioned delivery strategies. J Tissue Eng 2022; 13:20417314221088509. [PMID: 35356091 PMCID: PMC8958685 DOI: 10.1177/20417314221088509] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Atherosclerosis, a chronic inflammatory disease of vascular wall, is a progressive pathophysiological process with lipids oxidation/depositing initiation and innate/adaptive immune responses. The coordination of multi systems covering oxidative stress, dysfunctional endothelium, diseased lipid uptake, cell apoptosis, thrombotic and pro-inflammatory responding as well as switched SMCs contributes to plaque growth. In this circumstance, inevitably, targeting these processes is considered to be effective for treating atherosclerosis. Arriving, retention and working of payload candidates mediated by targets in lesion direct ultimate therapeutic outcomes. Accumulating a series of scientific studies and clinical practice in the past decades, lesion homing delivery strategies including stent/balloon/nanoparticle-based transportation worked as the potent promotor to ensure a therapeutic effect. The objective of this review is to achieve a very brief summary about the effective therapeutic methods cooperating specifical targets and positioning-delivery strategies in atherosclerosis for better outcomes.
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Affiliation(s)
- Li Li
- Key Laboratory of Advanced Technology of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, PR China
| | - Sainan Liu
- Key Laboratory of Advanced Technology of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, PR China
| | - Jianying Tan
- Key Laboratory of Advanced Technology of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, PR China
| | - Lai Wei
- Key Laboratory of Advanced Technology of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, PR China
| | - Dimeng Wu
- Chengdu Daxan Innovative Medical Tech. Co., Ltd., Chengdu, PR China
| | - Shuai Gao
- Chengdu Daxan Innovative Medical Tech. Co., Ltd., Chengdu, PR China
| | - Yajun Weng
- Key Laboratory of Advanced Technology of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, PR China
| | - Junying Chen
- Key Laboratory of Advanced Technology of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, PR China
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25
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Magisetty R, Park SM. New Era of Electroceuticals: Clinically Driven Smart Implantable Electronic Devices Moving towards Precision Therapy. MICROMACHINES 2022; 13:161. [PMID: 35208286 PMCID: PMC8876842 DOI: 10.3390/mi13020161] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/14/2022] [Accepted: 01/18/2022] [Indexed: 12/15/2022]
Abstract
In the name of electroceuticals, bioelectronic devices have transformed and become essential for dealing with all physiological responses. This significant advancement is attributable to its interdisciplinary nature from engineering and sciences and also the progress in micro and nanotechnologies. Undoubtedly, in the future, bioelectronics would lead in such a way that diagnosing and treating patients' diseases is more efficient. In this context, we have reviewed the current advancement of implantable medical electronics (electroceuticals) with their immense potential advantages. Specifically, the article discusses pacemakers, neural stimulation, artificial retinae, and vagus nerve stimulation, their micro/nanoscale features, and material aspects as value addition. Over the past years, most researchers have only focused on the electroceuticals metamorphically transforming from a concept to a device stage to positively impact the therapeutic outcomes. Herein, the article discusses the smart implants' development challenges and opportunities, electromagnetic field effects, and their potential consequences, which will be useful for developing a reliable and qualified smart electroceutical implant for targeted clinical use. Finally, this review article highlights the importance of wirelessly supplying the necessary power and wirelessly triggering functional electronic circuits with ultra-low power consumption and multi-functional advantages such as monitoring and treating the disease in real-time.
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Affiliation(s)
- RaviPrakash Magisetty
- Department of Convergence IT Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea;
| | - Sung-Min Park
- Department of Convergence IT Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea;
- Department of Electrical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
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26
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Li M, Hou J, Gu X, Weng R, Zhong Z, Liu S. Incidence and risk factors of in-stent restenosis after percutaneous coronary intervention in patients from southern China. Eur J Med Res 2022; 27:12. [PMID: 35065663 PMCID: PMC8783476 DOI: 10.1186/s40001-022-00640-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 01/11/2022] [Indexed: 12/29/2022] Open
Abstract
Background In-stent restenosis (ISR) remains a challenge for coronary artery disease (CAD) patients who undergo percutaneous coronary intervention (PCI) with stents, and risk factors for ISR are controversial. This study aimed to investigate the incidence and risk factors of ISR in patients from southern China. Methods In this retrospective study, patients diagnosed as acute coronary syndromes (ACS) and underwent successful PCI with drug-eluting stent (DES) and conducted a follow-up coronary angiography in Center for Cardiovascular Diseases of Meizhou People’s Hospital at the period of January 1st, 2016 to January 1st, 2021 were included for analysis. The clinical and angiographic factors were compared between patients in ISR ( +) and ISR (−) groups. The association between variables and ISR was evaluated by multivariate logistic regression model. Result A total of 341 ACS patients who had been installed at least 1 stent were included in this study. The follow-up time was 34.2 ± 17.2 months. During the follow-up period, 62 (18.2%) patients experienced ISR, and the average time for ISR was 32.8 months; the incidence of ISR for left main coronary artery, left anterior descending coronary artery, left circumflex artery coronary artery and right coronary artery were 6.7%, 20.9%, 19.4% and 14.4%, respectively; left ventricular ejection fraction (LVEF), stent number, stent type, statin therapy, antiplatelet therapy were significantly different between patients in ISR ( +) and ISR (−) group. Multivariate logistic analysis suggested that LVEF and stent number were significantly correlated with ISR. Conclusion Our study revealed the incidence and risk factors of ISR in patients from southern China. Our data suggested that LVEF and stent number were independent risk factors associated with ISR.
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27
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Wang Y, Huang Y, Du R, Ge S, Li Y, Wang G, Wang Y, Yin T. The crosstalk between arterial components and the bioresorbable, 3-D printed poly-l-lactic acid scaffolds. Biomater Sci 2022; 10:5121-5133. [DOI: 10.1039/d2bm00732k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bioresorbable scaffolds (BRS) are designed to provide a temporary support that subsequently leaves behind native vessels after their complete degradation. The accumulation of mechanical changes influences the vascular histological characteristics...
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28
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Molloy A, Beaumont K, Alyami A, Kirimi M, Hoare D, Mirzai N, Heidari H, Mitra S, Neale SL, Mercer JR. Challenges to the development of the next generation of self-reporting cardiovascular implantable medical devices. IEEE Rev Biomed Eng 2021; 15:260-272. [PMID: 34520361 DOI: 10.1109/rbme.2021.3110084] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Cardiovascular disease (CVD) is a group of heart and vasculature conditions which are the leading form of mortality worldwide. Blood vessels can become narrowed, restricting blood flow, and drive the majority of hearts attacks and strokes. Surgical interventions are frequently required; including percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG). Despite successful opening of vessels and restoration of blood flow, often in-stent restenosis (ISR) and graft failure can still occur, resulting in subsequent patient morbidity and mortality. A new generation of cardiovascular implants that have sensors and real-time monitoring capabilities are being developed to combat ISR and graft failure. Self-reporting stent/graft technology could enable precision medicine-based healthcare by detecting the earliest features of disease, even before symptoms occur. Bringing an implantable medical device with wireless electronic sensing capabilities to market is complex and often obstructive undertaking. This critical review analyses the obstacles that need to be overcome for self-reporting stents/grafts to be developed and provide a precision-medicine based healthcare for cardiovascular patients. Here we assess the latest research and technological advancement in the field, the current devices and the market potential for their end-user implementation.
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29
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Lee Y, Bandari VK, Li Z, Medina-Sánchez M, Maitz MF, Karnaushenko D, Tsurkan MV, Karnaushenko DD, Schmidt OG. Nano-biosupercapacitors enable autarkic sensor operation in blood. Nat Commun 2021; 12:4967. [PMID: 34426576 PMCID: PMC8382768 DOI: 10.1038/s41467-021-24863-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 07/12/2021] [Indexed: 02/07/2023] Open
Abstract
Today's smallest energy storage devices for in-vivo applications are larger than 3 mm3 and lack the ability to continuously drive the complex functions of smart dust electronic and microrobotic systems. Here, we create a tubular biosupercapacitor occupying a mere volume of 1/1000 mm3 (=1 nanoliter), yet delivering up to 1.6 V in blood. The tubular geometry of this nano-biosupercapacitor provides efficient self-protection against external forces from pulsating blood or muscle contraction. Redox enzymes and living cells, naturally present in blood boost the performance of the device by 40% and help to solve the self-discharging problem persistently encountered by miniaturized supercapacitors. At full capacity, the nano-biosupercapacitors drive a complex integrated sensor system to measure the pH-value in blood. This demonstration opens up opportunities for next generation intravascular implants and microrobotic systems operating in hard-to-reach small spaces deep inside the human body.
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Affiliation(s)
- Yeji Lee
- grid.6810.f0000 0001 2294 5505Material Systems for Nanoelectronics, Chemnitz University of Technology, Chemnitz, Germany ,grid.6810.f0000 0001 2294 5505Research Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, Chemnitz, Germany ,grid.14841.380000 0000 9972 3583Institute for Integrative Nanosciences, Leibniz IFW Dresden, Dresden, Germany
| | - Vineeth Kumar Bandari
- grid.6810.f0000 0001 2294 5505Material Systems for Nanoelectronics, Chemnitz University of Technology, Chemnitz, Germany ,grid.6810.f0000 0001 2294 5505Research Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, Chemnitz, Germany ,grid.14841.380000 0000 9972 3583Institute for Integrative Nanosciences, Leibniz IFW Dresden, Dresden, Germany
| | - Zhe Li
- grid.6810.f0000 0001 2294 5505Material Systems for Nanoelectronics, Chemnitz University of Technology, Chemnitz, Germany ,grid.6810.f0000 0001 2294 5505Research Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, Chemnitz, Germany ,grid.14841.380000 0000 9972 3583Institute for Integrative Nanosciences, Leibniz IFW Dresden, Dresden, Germany
| | - Mariana Medina-Sánchez
- grid.14841.380000 0000 9972 3583Institute for Integrative Nanosciences, Leibniz IFW Dresden, Dresden, Germany
| | - Manfred F. Maitz
- grid.419239.40000 0000 8583 7301Leibniz-Institut für Polymerforschung Dresden e.V., Dresden, Germany
| | - Daniil Karnaushenko
- grid.14841.380000 0000 9972 3583Institute for Integrative Nanosciences, Leibniz IFW Dresden, Dresden, Germany
| | - Mikhail V. Tsurkan
- grid.419239.40000 0000 8583 7301Leibniz-Institut für Polymerforschung Dresden e.V., Dresden, Germany
| | - Dmitriy D. Karnaushenko
- grid.14841.380000 0000 9972 3583Institute for Integrative Nanosciences, Leibniz IFW Dresden, Dresden, Germany
| | - Oliver G. Schmidt
- grid.6810.f0000 0001 2294 5505Material Systems for Nanoelectronics, Chemnitz University of Technology, Chemnitz, Germany ,grid.6810.f0000 0001 2294 5505Research Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, Chemnitz, Germany ,grid.14841.380000 0000 9972 3583Institute for Integrative Nanosciences, Leibniz IFW Dresden, Dresden, Germany ,grid.4488.00000 0001 2111 7257Nanophysics, Faculty of Physics, TU Dresden, Dresden, Germany
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Xie B, Pan D, Liu H, Liu M, Shi X, Chu X, Lu J, Zhu M, Xia B, Wu J. Diosmetin Protects Against Obesity and Metabolic Dysfunctions Through Activation of Adipose Estrogen Receptors in Mice. Mol Nutr Food Res 2021; 65:e2100070. [PMID: 34223710 DOI: 10.1002/mnfr.202100070] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 05/28/2021] [Indexed: 12/19/2022]
Abstract
SCOPE Obesity is a major public health and economic problem of global significance. Here, we investigate the role of diosmetin, a natural flavonoid presents mainly in citrus fruits, in the regulation of obesity and metabolic dysfunctions in mice. METHODS AND RESULTS Eight-week-old male C57BL/6 mice fed a high-fat diet (HFD) or 5-week-old male ob/ob mice fed a normal diet are treated with diosmetin (50 mg kg-1 daily) or vehicle for 8 weeks. Diosmetin treatment decreases body weight and fat mass, improves glucose tolerance and insulin resistance in obese mice. These metabolic benefits are mainly attributed to increase energy expenditure via enhancing thermogenesis in brown adipose tissue (BAT) and browning of white adipose tissue (WAT). Mechanistically, diosmetin acts as an agonist for estrogen receptors (ERs), and subsequently elevates adipose expressions of ERs in mice and in cultured adipocytes. When ERs are blocked by their antagonist fulvestrant in mice, diosmetin loses its beneficial effects, suggesting that ERs are indispensable for the metabolic benefits of diosmetin. CONCLUSION The results indicate that diosmetin may be a potential anti-obesity nutritional supplement and could be explored for low ERs-related obesity populations.
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Affiliation(s)
- Baocai Xie
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Dengke Pan
- Clinical Immunology Translational Medicine Key Laboratory of Sichuan Province, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan, 610072, China
| | - Huan Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Min Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Xiaochen Shi
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Xinyi Chu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Junfeng Lu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Mengqing Zhu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Bo Xia
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Jiangwei Wu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
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Qin Y, Hu X, Fan W, Yan J, Cheng S, Liu Y, Huang W. A Stretchable Scaffold with Electrochemical Sensing for 3D Culture, Mechanical Loading, and Real-Time Monitoring of Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2003738. [PMID: 34047055 PMCID: PMC8327466 DOI: 10.1002/advs.202003738] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/24/2020] [Indexed: 06/11/2023]
Abstract
In the field of three-dimensional (3D) cell culture and tissue engineering, great advance focusing on functionalized materials and desirable culture systems has been made to mimic the natural environment of cells in vivo. Mechanical loading is one of the critical factors that affect cell/tissue behaviors and metabolic activities, but the reported models or detection methods offer little direct and real-time information about mechanically induced cell responses. Herein, for the first time, a stretchable and multifunctional platform integrating 3D cell culture, mechanical loading, and electrochemical sensing is developed by immobilization of biomimetic peptide linked gold nanotubes on porous and elastic polydimethylsiloxane. The 3D scaffold demonstrates very good compatibility, excellent stretchability, and stable electrochemical sensing performance. This allows mimicking the articular cartilage and investigating its mechanotransduction by 3D culture, mechanical stretching of chondrocytes, and synchronously real-time monitoring of stretch-induced signaling molecules. The results disclose a previously unclear mechanotransduction pathway in chondrocytes that mechanical loading can rapidly activate nitric oxide signaling within seconds. This indicates the promising potential of the stretchable 3D sensing in exploring the mechanotransduction in 3D cellular systems and engineered tissues.
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Affiliation(s)
- Yu Qin
- College of Chemistry and Molecular SciencesWuhan UniversityWuhan430072China
| | - Xue‐Bo Hu
- College of Chemistry and Chemical EngineeringInstitute for Conservation and Utilization of Agro‐Bioresources in Dabie MountainsXinyang Normal UniversityXinyang464000China
| | - Wen‐Ting Fan
- College of Chemistry and Molecular SciencesWuhan UniversityWuhan430072China
| | - Jing Yan
- College of Chemistry and Molecular SciencesWuhan UniversityWuhan430072China
| | - Shi‐Bo Cheng
- College of Chemistry and Molecular SciencesWuhan UniversityWuhan430072China
| | - Yan‐Ling Liu
- College of Chemistry and Molecular SciencesWuhan UniversityWuhan430072China
| | - Wei‐Hua Huang
- College of Chemistry and Molecular SciencesWuhan UniversityWuhan430072China
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Somszor K, Allison-Logan S, Karimi F, McKenzie T, Fu Q, O'Connor A, Qiao G, Heath D. Amphiphilic Core Cross-Linked Star Polymers for the Delivery of Hydrophilic Drugs from Hydrophobic Matrices. Biomacromolecules 2021; 22:2554-2562. [PMID: 33983713 DOI: 10.1021/acs.biomac.1c00296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The delivery of hydrophilic drugs from hydrophobic polymers is a long-standing challenge in the biomaterials field due to the limited solubility of the therapeutic agent within the polymer matrix. In this work, we develop a drug delivery mechanism that enables the impregnation and subsequent elution of hydrophilic drugs from a hydrophobic polymer material. This was achieved by synthesizing core cross-linked star polymer amphiphiles with hydrophilic cores and hydrophobic coronas. While significant work has been done to create nanocarriers for hydrophilic drugs, this work is distinct from previous work in that it designs amphiphilic and core cross-linked particles for controlled release from hydrophobic matrices. Ultraviolet-mediated atom transfer radical polymerization was used to synthesize the poly(ethylene glycol) (PEG)-based hydrophilic cores of the star polymers, and hydrophobic coronas of poly(caprolactone) (PCL) were then built onto the stars using ring-opening polymerization. We illustrated the cytocompatibility of PCL loaded with these star polymers through human endothelial cell adhesion and proliferation for up to 7 days, with star loadings of up to 40 wt %. We demonstrated successful loading of the hydrophilic drug heparin into the star polymer core, achieving a loading efficiency and content of 50 and 5%, respectively. Finally, the heparin-loaded star polymers were incorporated into a PCL matrix and sustained release of heparin was illustrated for over 40 days. These results support the use of core cross-linked star polymer amphiphiles for the delivery of hydrophilic drugs from hydrophobic polymer matrices. These materials were developed for application as drug-eluting and biodegradable coronary artery stents, but this flexible drug delivery platform could have impact in a broad range of medical applications.
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Affiliation(s)
- Katarzyna Somszor
- Department of Biomedical Engineering, University of Melbourne, Parkville, 3010 VIC, Australia
| | - Stephanie Allison-Logan
- Department of Biomedical Engineering, University of Melbourne, Parkville, 3010 VIC, Australia.,Department of Chemical Engineering, University of Melbourne, Parkville, 3010 VIC, Australia
| | - Fatemeh Karimi
- Department of Chemical Engineering, University of Melbourne, Parkville, 3010 VIC, Australia.,Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Thomas McKenzie
- Department of Chemical Engineering, University of Melbourne, Parkville, 3010 VIC, Australia
| | - Qiang Fu
- Department of Chemical Engineering, University of Melbourne, Parkville, 3010 VIC, Australia.,Centre for Technology in Water and Wastewater (CTWW), School of Civil and Environmental Engineering, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Andrea O'Connor
- Department of Biomedical Engineering, University of Melbourne, Parkville, 3010 VIC, Australia
| | - Greg Qiao
- Department of Chemical Engineering, University of Melbourne, Parkville, 3010 VIC, Australia
| | - Daniel Heath
- Department of Biomedical Engineering, University of Melbourne, Parkville, 3010 VIC, Australia
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Kimura K, Ramirez K, Nguyen TAV, Yamashiro Y, Sada A, Yanagisawa H. Contribution of PDGFRα-positive cells in maintenance and injury responses in mouse large vessels. Sci Rep 2021; 11:8683. [PMID: 33883668 PMCID: PMC8060414 DOI: 10.1038/s41598-021-88126-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 04/07/2021] [Indexed: 11/09/2022] Open
Abstract
The maladaptive remodeling of vessel walls with neointima formation is a common feature of proliferative vascular diseases. It has been proposed that neointima formation is caused by the dedifferentiation of mature smooth muscle cells (SMCs). Recent evidence suggests that adventitial cells also participate in neointima formation; however, their cellular dynamics are not fully understood. In this study, we utilized a lineage tracing model of platelet-derived growth factor receptor alpha (PDGFRa) cells and examined cellular behavior during homeostasis and injury response. PDGFRa marked adventitial cells that were largely positive for Sca1 and a portion of medial SMCs, and both cell types were maintained for 2 years. Upon carotid artery ligation, PDGFRa-positive (+) cells were slowly recruited to the neointima and exhibited an immature SMC phenotype. In contrast, in a more severe wire denudation injury, PDGFRa+ cells were recruited to the neointima within 14 days and fully differentiated into SMCs. Under pressure overload induced by transverse aortic constriction, PDGFRa+ cells developed marked adventitial fibrosis. Taken together, our observations suggest that PDGFRa+ cells serve as a reservoir of adventitial cells and a subset of medial SMCs and underscore their context-dependent response to vascular injuries.
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Affiliation(s)
- Kenichi Kimura
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Karina Ramirez
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan.,Ph.D. Program in Human Biology, School of Integrative and Global Majors, University of Tsukuba, Tsukuba, Japan
| | - Tram Anh Vu Nguyen
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan.,Ph.D. Program in Human Biology, School of Integrative and Global Majors, University of Tsukuba, Tsukuba, Japan
| | - Yoshito Yamashiro
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Aiko Sada
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan.,International Research Center for Medical Sciences (IRCMS), Kumamoto University, Kumamoto, Japan
| | - Hiromi Yanagisawa
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan. .,Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.
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Jiang W, Wang L, Song Y. Titration and follow-up for home noninvasive positive pressure ventilation in chronic obstructive pulmonary disease: The potential role of tele-monitoring and the Internet of things. CLINICAL RESPIRATORY JOURNAL 2021; 15:705-715. [PMID: 33705593 DOI: 10.1111/crj.13352] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 03/04/2021] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Home noninvasive positive pressure ventilation (NIPPV) has become a well-established treatment for stable hypercapnic chronic obstructive pulmonary disease (COPD) patients. There are still other challenges including appropriate titration of ventilator parameters, adequacy of follow-up, monitoring, and management at home to ensure effectiveness and security, and to improve quality of life. The Internet of Things (IoT) is the name given to the network of devices and other "things" with built-in sensors, software, electronics, and network connectivity, which can communicate these objects over wireless networks and then send data to a cloud platform. Reliable tele-monitoring and transmission of clinical parameters from home to hospitals have prompted the development of IoT-based home NIPPV. OBJECTIVES This review provides an overview of titration and follow-up of home NIPPV and focuses on different technologies, modalities, managements, and cost-effectiveness used in IoT-based tele-monitoring of home mechanical ventilation. DATA SOURCE Literature search of Web of Science, PubMed, and EMBASE was made to find relevant articles about tele-monitoring and the IoT in home mechanical ventilation over the last 15 years. We used the following search terms: NIPPV, COPD, home mechanical ventilation, telemedicine, tele-monitoring, and management. CONCLUSION IoT-based management of home NIPPV, such as home titration and follow-up with the use of tele-monitoring, are emerging and yielding positive findings. However, clear conclusions based on RCT of tele-monitoring in COPD patients with NIPPV at home are only a few and large-scale multicenter studies are required for replication and further validation.
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Affiliation(s)
- Weipeng Jiang
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Linlin Wang
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - YuanLin Song
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Respiratory Research Institute, Shanghai, China.,National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China.,Department of Pulmonary Medicine, Zhongshan Hospital, Qingpu Branch, Fudan University, Shanghai, China.,Department of Pulmonary Medicine, Jinshan Hospital of Fudan University, Shanghai, China
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Cockerill I, See CW, Young ML, Wang Y, Zhu D. Designing Better Cardiovascular Stent Materials - A Learning Curve. ADVANCED FUNCTIONAL MATERIALS 2021; 31:2005361. [PMID: 33708033 PMCID: PMC7942182 DOI: 10.1002/adfm.202005361] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Indexed: 05/07/2023]
Abstract
Cardiovascular stents are life-saving devices and one of the top 10 medical breakthroughs of the 21st century. Decades of research and clinical trials have taught us about the effects of material (metal or polymer), design (geometry, strut thickness, and the number of connectors), and drug-elution on vasculature mechanics, hemocompatibility, biocompatibility, and patient health. Recently developed novel bioresorbable stents are intended to overcome common issues of chronic inflammation, in-stent restenosis, and stent thrombosis associated with permanent stents, but there is still much to learn. Increased knowledge and advanced methods in material processing have led to new stent formulations aimed at improving the performance of their predecessors but often comes with potential tradeoffs. This review aims to discuss the advantages and disadvantages of stent material interactions with the host within five areas of contrasting characteristics, such as 1) metal or polymer, 2) bioresorbable or permanent, 3) drug elution or no drug elution, 4) bare or surface-modified, and 5) self-expanding or balloon-expanding perspectives, as they relate to pre-clinical and clinical outcomes and concludes with directions for future studies.
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Affiliation(s)
- Irsalan Cockerill
- Department of Biomedical Engineering, University of North Texas, Denton, TX 76207, USA
- Department of Materials Science and Engineering, University of North Texas, Denton, TX 76207, USA
| | - Carmine Wang See
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794, USA
| | - Marcus L. Young
- Department of Materials Science and Engineering, University of North Texas, Denton, TX 76207, USA
| | - Yadong Wang
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Donghui Zhu
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794, USA
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Casanova-Batlle E, Guerra AJ, Ciurana J. Continuous Based Direct Ink Write for Tubular Cardiovascular Medical Devices. Polymers (Basel) 2020; 13:E77. [PMID: 33379164 PMCID: PMC7794716 DOI: 10.3390/polym13010077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/14/2020] [Accepted: 12/22/2020] [Indexed: 02/07/2023] Open
Abstract
Bioresorbable cardiovascular applications are increasing in demand as fixed medical devices cause episodes of late restenosis. The autologous treatment is, so far, the gold standard for vascular grafts due to the similarities to the replaced tissue. Thus, the possibility of customizing each application to its end user is ideal for treating pathologies within a dynamic system that receives constant stimuli, such as the cardiovascular system. Direct Ink Writing (DIW) is increasingly utilized for biomedical purposes because it can create composite bioinks by combining polymers and materials from other domains to create DIW-printable materials that provide characteristics of interest, such as anticoagulation, mechanical resistance, or radiopacity. In addition, bioinks can be tailored to encounter the optimal rheological properties for the DIW purpose. This review delves into a novel emerging field of cardiovascular medical applications, where this technology is applied in the tubular 3D printing approach. Cardiovascular stents and vascular grafts manufactured with this new technology are reviewed. The advantages and limitations of blending inks with cells, composite materials, or drugs are highlighted. Furthermore, the printing parameters and the different possibilities of designing these medical applications have been explored.
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Affiliation(s)
- Enric Casanova-Batlle
- Grup de Recerca en Enginyeria Producte Procès i Producció (GREP), Universitat de Girona, 17003 Girona, Spain;
| | | | - Joaquim Ciurana
- Grup de Recerca en Enginyeria Producte Procès i Producció (GREP), Universitat de Girona, 17003 Girona, Spain;
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Bussooa A, Hoare D, Kirimi MT, Mitra S, Mirzai N, Neale SL, Mercer JR. Impedimetric Detection and Electromediated Apoptosis of Vascular Smooth Muscle Using Microfabricated Biosensors for Diagnosis and Therapeutic Intervention in Cardiovascular Diseases. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1902999. [PMID: 32999823 DOI: 10.1002/advs.2019029991902999] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 01/17/2020] [Indexed: 05/23/2023]
Abstract
Cardiovascular diseases remain a significant global burden with 1-in-3 of all deaths attributable to the consequences of the disease. The main cause is blocked arteries which often remain undetected. Implantable medical devices (IMDs) such as stents and grafts are often used to reopen vessels but over time these too will re-block. A vascular biosensor is developed that can report on cellularity and is amenable to being mounted on a stent or graft for remote reporting. Moreover, the device is designed to also receive currents that can induce a controlled form of cell death, apoptosis. A combined diagnostic and therapeutic biosensor would be transformational for the treatment of vascular diseases such as atherosclerosis and central line access. In this work, a cell sensing and cell apoptosing system based on the same interdigitated electrodes (IDEs) is developed. It is shown that the device is scalable and that by miniaturizing the IDEs, the detection sensitivity is increased. Apoptosis of vascular smooth muscle cells is monitored using continuous impedance measurements at a frequency of 10 kHz and rates of cell death are tracked using fluorescent dyes and live cell imaging.
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Affiliation(s)
- Anubhav Bussooa
- BHF Cardiovascular Research Centre University of Glasgow Glasgow G12 8TA UK
| | - Daniel Hoare
- BHF Cardiovascular Research Centre University of Glasgow Glasgow G12 8TA UK
| | - Mahmut T Kirimi
- BHF Cardiovascular Research Centre University of Glasgow Glasgow G12 8TA UK
| | - Srinjoy Mitra
- Scottish Microelectronics Centre Kings Buildings Campus University of Edinburgh Edinburgh EH9 3FF Scotland
| | - Nosrat Mirzai
- Bioelectronics Unit University of Glasgow Glasgow G12 8TA UK
| | - Steve L Neale
- James Watt School of Engineering University of Glasgow Glasgow G12 8QQ UK
| | - John R Mercer
- BHF Cardiovascular Research Centre University of Glasgow Glasgow G12 8TA UK
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Bussooa A, Hoare D, Kirimi MT, Mitra S, Mirzai N, Neale SL, Mercer JR. Impedimetric Detection and Electromediated Apoptosis of Vascular Smooth Muscle Using Microfabricated Biosensors for Diagnosis and Therapeutic Intervention in Cardiovascular Diseases. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1902999. [PMID: 32999823 PMCID: PMC7509665 DOI: 10.1002/advs.201902999] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 01/17/2020] [Indexed: 05/23/2023]
Abstract
Cardiovascular diseases remain a significant global burden with 1-in-3 of all deaths attributable to the consequences of the disease. The main cause is blocked arteries which often remain undetected. Implantable medical devices (IMDs) such as stents and grafts are often used to reopen vessels but over time these too will re-block. A vascular biosensor is developed that can report on cellularity and is amenable to being mounted on a stent or graft for remote reporting. Moreover, the device is designed to also receive currents that can induce a controlled form of cell death, apoptosis. A combined diagnostic and therapeutic biosensor would be transformational for the treatment of vascular diseases such as atherosclerosis and central line access. In this work, a cell sensing and cell apoptosing system based on the same interdigitated electrodes (IDEs) is developed. It is shown that the device is scalable and that by miniaturizing the IDEs, the detection sensitivity is increased. Apoptosis of vascular smooth muscle cells is monitored using continuous impedance measurements at a frequency of 10 kHz and rates of cell death are tracked using fluorescent dyes and live cell imaging.
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Affiliation(s)
- Anubhav Bussooa
- BHF Cardiovascular Research CentreUniversity of GlasgowGlasgowG12 8TAUK
| | - Daniel Hoare
- BHF Cardiovascular Research CentreUniversity of GlasgowGlasgowG12 8TAUK
| | - Mahmut T. Kirimi
- BHF Cardiovascular Research CentreUniversity of GlasgowGlasgowG12 8TAUK
| | - Srinjoy Mitra
- Scottish Microelectronics CentreKings Buildings CampusUniversity of EdinburghEdinburgh EH9 3FFScotland
| | - Nosrat Mirzai
- Bioelectronics UnitUniversity of GlasgowGlasgowG12 8TAUK
| | - Steve L. Neale
- James Watt School of EngineeringUniversity of GlasgowGlasgowG12 8QQUK
| | - John R. Mercer
- BHF Cardiovascular Research CentreUniversity of GlasgowGlasgowG12 8TAUK
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Vishnu J, Manivasagam G. Perspectives on smart stents with sensors: From conventional permanent to novel bioabsorbable smart stent technologies. ACTA ACUST UNITED AC 2020. [DOI: 10.1002/mds3.10116] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jithin Vishnu
- Centre for Biomaterials Cellular and Molecular Theranostics CBCMT Vellore Institute of Technology Vellore India
| | - Geetha Manivasagam
- Centre for Biomaterials Cellular and Molecular Theranostics CBCMT Vellore Institute of Technology Vellore India
- IBTN/In ‐ Indian branch of Institute of Biomaterials Tribocorrosion and Nanomedicine Vellore Institute of Technology Vellore India
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Zhou K, Li Y, Zhang L, Jin L, Yuan F, Tan J, Yuan G, Pei J. Nano-micrometer surface roughness gradients reveal topographical influences on differentiating responses of vascular cells on biodegradable magnesium. Bioact Mater 2020; 6:262-272. [PMID: 32913933 PMCID: PMC7451920 DOI: 10.1016/j.bioactmat.2020.08.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 08/05/2020] [Accepted: 08/08/2020] [Indexed: 12/12/2022] Open
Abstract
Distinctively directing endothelial cells (ECs) and smooth muscle cells (SMCs), potentially by surface topography cue, is of central importance for enhancing bioefficacy of vascular implants. For the first time, surface gradients with a broad range of nano-micrometer roughness are developed on Mg, a promising next-generation biodegradable metal, to carry out a systematic study on the response of ECs and SMCs. Cell adhesion, spreading, and proliferation are quantified along gradients by high-throughput imaging, illustrating drastic divergence between ECs and SMCs, especially in highly rough regions. The profound role of surface topography overcoming the biochemical cue of released Mg2+ is unraveled at different roughness ranges for ECs and SMCs. Further insights into the underlying regulatory mechanism are gained at subcellular and gene levels. Our work enables high-efficient exploration of optimized surface morphology for modulating favored cell selectivity of promoting ECs and suppressing SMCs, providing a potential strategy to achieve rapid endothelialization for Mg. Surface topography stimuli was engineered on Mg with varying roughness gradients. Ridge/valley network feature on Mg overperforms the influence of Mg2+. Optimized roughness facilitates proliferation of ECs while suppressing SMCs.
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Affiliation(s)
- Ke Zhou
- National Engineering Research Center of Light Alloy Net Forming & State Key Laboratory of Metal Matrix Composite, School of Materials Science & Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yutong Li
- National Engineering Research Center of Light Alloy Net Forming & State Key Laboratory of Metal Matrix Composite, School of Materials Science & Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Lei Zhang
- National Engineering Research Center of Light Alloy Net Forming & State Key Laboratory of Metal Matrix Composite, School of Materials Science & Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Liang Jin
- National Engineering Research Center of Light Alloy Net Forming & State Key Laboratory of Metal Matrix Composite, School of Materials Science & Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Feng Yuan
- Department of Biomedical Engineering, University of Texas at Austin, TX, 78712, USA
| | - Jinyun Tan
- Department of Vascular Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Guangyin Yuan
- National Engineering Research Center of Light Alloy Net Forming & State Key Laboratory of Metal Matrix Composite, School of Materials Science & Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Jia Pei
- National Engineering Research Center of Light Alloy Net Forming & State Key Laboratory of Metal Matrix Composite, School of Materials Science & Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
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Health Care Monitoring and Treatment for Coronary Artery Diseases: Challenges and Issues. SENSORS 2020; 20:s20154303. [PMID: 32752231 PMCID: PMC7435700 DOI: 10.3390/s20154303] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/09/2020] [Accepted: 07/12/2020] [Indexed: 01/03/2023]
Abstract
In-stent restenosis concerning the coronary artery refers to the blood clotting-caused re-narrowing of the blocked section of the artery, which is opened using a stent. The failure rate for stents is in the range of 10% to 15%, where they do not remain open, thereby leading to about 40% of the patients with stent implantations requiring repeat procedure within one year, despite increased risk factors and the administration of expensive medicines. Hence, today stent restenosis is a significant cause of deaths globally. Monitoring and treatment matter a lot when it comes to early diagnosis and treatment. A review of the present stent monitoring technology as well as the practical treatment for addressing stent restenosis was conducted. The problems and challenges associated with current stent monitoring technology were illustrated, along with its typical applications. Brief suggestions were given and the progress of stent implants was discussed. It was revealed that prime requisites are needed to achieve good quality implanted stent devices in terms of their size, reliability, etc. This review would positively prompt researchers to augment their efforts towards the expansion of healthcare systems. Lastly, the challenges and concerns associated with nurturing a healthcare system were deliberated with meaningful evaluations.
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Use of Human Umbilical Vein Endothelial Cells (HUVEC) as a Model to Study Cardiovascular Disease: A Review. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10030938] [Citation(s) in RCA: 110] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Cardiovascular disease (CVD) is the leading cause of death worldwide, and extensive research has been performed to understand this disease better, using various experimental models. The endothelium plays a crucial role in the development of CVD, since it is an interface between bloodstream components, such as monocytes and platelets, and other arterial wall components. Human umbilical vein endothelial cell (HUVEC) isolation from umbilical cord was first described in 1973. To date, this model is still widely used because of the high HUVEC isolation success rate, and because HUVEC are an excellent model to study a broad array of diseases, including cardiovascular and metabolic diseases. We here review the history of HUVEC isolation, the HUVEC model over time, HUVEC culture characteristics and conditions, advantages and disadvantages of this model and finally, its applications in the area of cardiovascular diseases.
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