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Ahmad F, Muhmood T. Clinical translation of nanomedicine with integrated digital medicine and machine learning interventions. Colloids Surf B Biointerfaces 2024; 241:114041. [PMID: 38897022 DOI: 10.1016/j.colsurfb.2024.114041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 06/11/2024] [Accepted: 06/13/2024] [Indexed: 06/21/2024]
Abstract
Nanomaterials based therapeutics transform the ways of disease prevention, diagnosis and treatment with increasing sophistications in nanotechnology at a breakneck pace, but very few could reach to the clinic due to inconsistencies in preclinical studies followed by regulatory hinderances. To tackle this, integrating the nanomedicine discovery with digital medicine provide technologies as tools of specific biological activity measurement. Hence, overcome the redundancies in nanomedicine discovery by the on-site data acquisition and analytics through integrating intelligent sensors and artificial intelligence (AI) or machine learning (ML). Integrated AI/ML wearable sensors directly gather clinically relevant biochemical information from the subject's body and process data for physicians to make right clinical decision(s) in a time and cost-effective way. This review summarizes insights and recommend the infusion of actionable big data computation enabled sensors in burgeoning field of nanomedicine at academia, research institutes, and pharmaceutical industries, with a potential of clinical translation. Furthermore, many blind spots are present in modern clinically relevant computation, one of which could prevent ML-guided low-cost new nanomedicine development from being successfully translated into the clinic was also discussed.
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Affiliation(s)
- Farooq Ahmad
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, China.
| | - Tahir Muhmood
- International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga, Braga 4715-330, Portugal.
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2
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Qiu Y, Ashok A, Nguyen CC, Yamauchi Y, Do TN, Phan HP. Integrated Sensors for Soft Medical Robotics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308805. [PMID: 38185733 DOI: 10.1002/smll.202308805] [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: 10/03/2023] [Revised: 11/24/2023] [Indexed: 01/09/2024]
Abstract
Minimally invasive procedures assisted by soft robots for surgery, diagnostics, and drug delivery have unprecedented benefits over traditional solutions from both patient and surgeon perspectives. However, the translation of such technology into commercialization remains challenging. The lack of perception abilities is one of the obstructive factors paramount for a safe, accurate and efficient robot-assisted intervention. Integrating different types of miniature sensors onto robotic end-effectors is a promising trend to compensate for the perceptual deficiencies in soft robots. For example, haptic feedback with force sensors helps surgeons to control the interaction force at the tool-tissue interface, impedance sensing of tissue electrical properties can be used for tumor detection. The last decade has witnessed significant progress in the development of multimodal sensors built on the advancement in engineering, material science and scalable micromachining technologies. This review article provides a snapshot on common types of integrated sensors for soft medical robots. It covers various sensing mechanisms, examples for practical and clinical applications, standard manufacturing processes, as well as insights on emerging engineering routes for the fabrication of novel and high-performing sensing devices.
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Affiliation(s)
- Yulin Qiu
- School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, New South Wales, 2052, Australia
- Graduate School of Biomedical Engineering, The University of New South Wales, Sydney, New South Wales, 2052, Australia
| | - Aditya Ashok
- Australian Institute of Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, Queensland, 4067, Australia
| | - Chi Cong Nguyen
- Graduate School of Biomedical Engineering, The University of New South Wales, Sydney, New South Wales, 2052, Australia
| | - Yusuke Yamauchi
- Australian Institute of Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, Queensland, 4067, Australia
- Department of Materials Science and Engineering, School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
| | - Thanh Nho Do
- Graduate School of Biomedical Engineering, The University of New South Wales, Sydney, New South Wales, 2052, Australia
- Tyree Foundation Institute of Health Engineering, University of New South Wales, Sydney, New South Wales, 2052, Australia
| | - Hoang-Phuong Phan
- School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, New South Wales, 2052, Australia
- Tyree Foundation Institute of Health Engineering, University of New South Wales, Sydney, New South Wales, 2052, Australia
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3
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Stine JM, Ruland KL, Beardslee LA, Levy JA, Abianeh H, Botasini S, Pasricha PJ, Ghodssi R. Miniaturized Capsule System Toward Real-Time Electrochemical Detection of H 2 S in the Gastrointestinal Tract. Adv Healthc Mater 2024; 13:e2302897. [PMID: 38035728 DOI: 10.1002/adhm.202302897] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 11/20/2023] [Indexed: 12/02/2023]
Abstract
Hydrogen sulfide (H2 S) is a gaseous inflammatory mediator and important signaling molecule for maintaining gastrointestinal (GI) homeostasis. Excess intraluminal H2 S in the GI tract has been implicated in inflammatory bowel disease and neurodegenerative disorders; however, the role of H2 S in disease pathogenesis and progression is unclear. Herein, an electrochemical gas-sensing ingestible capsule is developed to enable real-time, wireless amperometric measurement of H2 S in GI conditions. A gold (Au) three-electrode sensor is modified with a Nafion solid-polymer electrolyte (Nafion-Au) to enhance selectivity toward H2 S in humid environments. The Nafion-Au sensor-integrated capsule shows a linear current response in H2 S concentration ranging from 0.21 to 4.5 ppm (R2 = 0.954) with a normalized sensitivity of 12.4% ppm-1 when evaluated in a benchtop setting. The sensor proves highly selective toward H2 S in the presence of known interferent gases, such as hydrogen (H2 ), with a selectivity ratio of H2 S:H2 = 1340, as well as toward methane (CH4 ) and carbon dioxide (CO2 ). The packaged capsule demonstrates reliable wireless communication through abdominal tissue analogues, comparable to GI dielectric properties. Also, an assessment of sensor drift and threshold-based notification is investigated, showing potential for in vivo application. Thus, the developed H2 S capsule platform provides an analytical tool to uncover the complex biology-modulating effects of intraluminal H2 S.
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Affiliation(s)
- Justin M Stine
- Department of Electrical and Computer Engineering, University of Maryland, College Park, MD, 20742, USA
- Institute for Systems Research, University of Maryland, College Park, MD, 20742, USA
- Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, 20742, USA
| | - Katie L Ruland
- Department of Electrical and Computer Engineering, University of Maryland, College Park, MD, 20742, USA
- Institute for Systems Research, University of Maryland, College Park, MD, 20742, USA
- Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, 20742, USA
| | - Luke A Beardslee
- Institute for Systems Research, University of Maryland, College Park, MD, 20742, USA
| | - Joshua A Levy
- Institute for Systems Research, University of Maryland, College Park, MD, 20742, USA
- Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, 20742, USA
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Hossein Abianeh
- Department of Electrical and Computer Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Santiago Botasini
- Institute for Systems Research, University of Maryland, College Park, MD, 20742, USA
| | - Pankaj J Pasricha
- Department of Internal Medicine, Mayo Clinic Hospital, Phoenix, AZ, 85054, USA
| | - Reza Ghodssi
- Department of Electrical and Computer Engineering, University of Maryland, College Park, MD, 20742, USA
- Institute for Systems Research, University of Maryland, College Park, MD, 20742, USA
- Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, 20742, USA
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
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Thwaites PA, Yao CK, Halmos EP, Muir JG, Burgell RE, Berean KJ, Kalantar‐zadeh K, Gibson PR. Review article: Current status and future directions of ingestible electronic devices in gastroenterology. Aliment Pharmacol Ther 2024; 59:459-474. [PMID: 38168738 PMCID: PMC10952964 DOI: 10.1111/apt.17844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/15/2023] [Accepted: 12/13/2023] [Indexed: 01/05/2024]
Abstract
BACKGROUND Advances in microelectronics have greatly expanded the capabilities and clinical potential of ingestible electronic devices. AIM To provide an overview of the structure and potential impact of ingestible devices in development that are relevant to the gastrointestinal tract. METHODS We performed a detailed literature search to inform this narrative review. RESULTS Technical success of ingestible electronic devices relies on the ability to miniaturise the microelectronic circuits, sensors and components for interventional functions while being sufficiently powered to fulfil the intended function. These devices offer the advantages of being convenient and minimally invasive, with real-time assessment often possible and with minimal interference to normal physiology. Safety has not been a limitation, but defining and controlling device location in the gastrointestinal tract remains challenging. The success of capsule endoscopy has buoyed enthusiasm for the concepts, but few ingestible devices have reached clinical practice to date, partly due to the novelty of the information they provide and also due to the challenges of adding this novel technology to established clinical paradigms. Nonetheless, with ongoing technological advancement and as understanding of their potential impact emerges, acceptance of such technology will grow. These devices have the capacity to provide unique insight into gastrointestinal physiology and pathophysiology. Interventional functions, such as sampling of tissue or luminal contents and delivery of therapies, may further enhance their ability to sharpen gastroenterological diagnoses, monitoring and treatment. CONCLUSIONS The development of miniaturised ingestible microelectronic-based devices offers exciting prospects for enhancing gastroenterological research and the delivery of personalised, point-of-care medicine.
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Affiliation(s)
- Phoebe A. Thwaites
- Department of Gastroenterology, Central Clinical SchoolMonash University and Alfred HealthMelbourneVictoriaAustralia
| | - Chu K. Yao
- Department of Gastroenterology, Central Clinical SchoolMonash University and Alfred HealthMelbourneVictoriaAustralia
| | - Emma P. Halmos
- Department of Gastroenterology, Central Clinical SchoolMonash University and Alfred HealthMelbourneVictoriaAustralia
| | - Jane G. Muir
- Department of Gastroenterology, Central Clinical SchoolMonash University and Alfred HealthMelbourneVictoriaAustralia
| | - Rebecca E. Burgell
- Department of Gastroenterology, Central Clinical SchoolMonash University and Alfred HealthMelbourneVictoriaAustralia
| | - Kyle J. Berean
- Atmo BiosciencesMelbourneVictoriaAustralia
- School of Engineering, RMIT UniversityMelbourneVictoriaAustralia
| | - Kourosh Kalantar‐zadeh
- Faculty of Engineering, School of Chemical and Biomolecular EngineeringThe University of SydneyCamperdownNew South WalesAustralia
| | - Peter R. Gibson
- Department of Gastroenterology, Central Clinical SchoolMonash University and Alfred HealthMelbourneVictoriaAustralia
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5
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Jiang X, Wu H, Xiao A, Huang Y, Yu X, Chang L. Recent Advances in Bioelectronics for Localized Drug Delivery. SMALL METHODS 2024; 8:e2301068. [PMID: 37759393 DOI: 10.1002/smtd.202301068] [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: 08/14/2023] [Revised: 09/12/2023] [Indexed: 09/29/2023]
Abstract
The last decade has witnessed remarkable advancements in bioelectronics, ushering in a new era of wearable and implantable devices for drug delivery. By utilizing miniaturized system design and/or flexible materials, bioelectronics illustrates ideal integration with target organs and tissues, making them ideal platforms for localized drug delivery. Furthermore, the development of electrically assisted drug delivery systems has enhanced the efficiency and safety of therapeutic administration, particularly for the macromolecules that encounter additional challenges in penetrating biological barriers. In this review, a concise overview of recent progress in bioelectronic devices for in vivo localized drug delivery, with highlights on the latest trends in device design, working principles, and their corresponding functionalities, is provided. The reported systems based on their targeted delivery locations as wearable systems, ingestible systems, and implantable systems are categorized. Each category is introduced in detail by highlighting the special requirements for devices and the corresponding solutions. The remaining challenges in this field and future directions are also discussed.
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Affiliation(s)
- Xinran Jiang
- Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China
| | - Han Wu
- Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China
| | - Ao Xiao
- Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China
| | - Ya Huang
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Hong Kong Centre for Cerebro-Cardiovascular Health Engineering, Hong Kong, 999077, China
| | - Xinge Yu
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Hong Kong Centre for Cerebro-Cardiovascular Health Engineering, Hong Kong, 999077, China
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, 518057, China
| | - Lingqian Chang
- Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China
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6
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Naik DA, Matonis S, Balakrishnan G, Bettinger CJ. Intestinal retentive systems - recent advances and emerging approaches. J Mater Chem B 2023; 12:64-78. [PMID: 38047746 DOI: 10.1039/d3tb01842c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Intestinal retentive devices (IRDs) are devices designed to anchor within the lumen of the intestines for long-term residence in the gastrointestinal tract. IRDs can enable impactful medical device technologies including sustained oral drug delivery systems, indwelling sensors, or real-time diagnostics. The design and testing of IRDs present a myriad of challenges, including precise deployment of the device at desired intestinal locations, secure anchoring within the gastrointestinal tract to allow for natural function, and safe removal of the IRD at user-defined times. Advancing the state-of-the-art of IRD is an interdisciplinary effort that requires innovations such as new materials, novel anchoring mechanisms, and medical device design with consistent input from clinical practitioners and end-users. This perspective briefly reviews the current state-of-the-art for IRDs and charts a path forward to inform the design of future concepts. Specifically, this article will highlight materials, retention mechanisms, and test beds to measure the efficacy of IRDs and their mechanisms. Finally, potential synergies between IRD and other medical device technologies are presented to identify future opportunities.
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Affiliation(s)
- Durva A Naik
- Materials Science and Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Wean Hall 3325, Pittsburgh, PA 15213, USA.
| | - Spencer Matonis
- Materials Science and Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Wean Hall 3325, Pittsburgh, PA 15213, USA.
| | - Gaurav Balakrishnan
- Materials Science and Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Wean Hall 3325, Pittsburgh, PA 15213, USA.
| | - Christopher J Bettinger
- Materials Science and Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Wean Hall 3325, Pittsburgh, PA 15213, USA.
- Biomedical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Scott Hall 4N201, Pittsburgh, PA 15213, USA
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7
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Remlova E, Feig VR, Kang Z, Patel A, Ballinger I, Ginzburg A, Kuosmanen J, Fabian N, Ishida K, Jenkins J, Hayward A, Traverso G. Activated Metals to Generate Heat for Biomedical Applications. ACS MATERIALS LETTERS 2023; 5:2508-2517. [PMID: 37680546 PMCID: PMC10481395 DOI: 10.1021/acsmaterialslett.3c00581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 08/10/2023] [Indexed: 09/09/2023]
Abstract
Delivering heat in vivo could enhance a wide range of biomedical therapeutic and diagnostic technologies, including long-term drug delivery devices and cancer treatments. To date, providing thermal energy is highly power-intensive, rendering it oftentimes inaccessible outside of clinical settings. We developed an in vivo heating method based on the exothermic reaction between liquid-metal-activated aluminum and water. After establishing a method for consistent activation, we characterized the heat generation capabilities with thermal imaging and heat flux measurements. We then demonstrated one application of this reaction: to thermally actuate a gastric resident device made from a shape-memory alloy called Nitinol. Finally, we highlight the advantages and future directions for leveraging this novel in situ heat generation method beyond the showcased example.
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Affiliation(s)
- Eva Remlova
- Division
of Gastroenterology, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
- Department
of Health Sciences and Technology, Eidgenössische
Technische Hochschule Zürich, Universitätstrasse 2, 8092 Zürich, Switzerland
| | - Vivian Rachel Feig
- Division
of Gastroenterology, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
- The
David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Ziliang Kang
- Division
of Gastroenterology, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
- Department
of Mechanical Engineering, Massachusetts
Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Ashka Patel
- Division
of Gastroenterology, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
- Department
of Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Ian Ballinger
- Division
of Gastroenterology, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Anna Ginzburg
- Division
of Gastroenterology, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
- Department
of Cell/Cellular and Molecular Biology, Northeastern University, Boston, Massachusetts 02115, United States
| | - Johannes Kuosmanen
- Department
of Mechanical Engineering, Massachusetts
Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Niora Fabian
- Department
of Mechanical Engineering, Massachusetts
Institute of Technology, Cambridge, Massachusetts 02139, United States
- Division
of Comparative Medicine, Massachusetts Institute
of Technology, Cambridge, Massachusetts 02139, United States
| | - Keiko Ishida
- Division
of Gastroenterology, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
- The
David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Joshua Jenkins
- Division
of Gastroenterology, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
- Department
of Mechanical Engineering, Massachusetts
Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Alison Hayward
- Division
of Gastroenterology, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
- Department
of Mechanical Engineering, Massachusetts
Institute of Technology, Cambridge, Massachusetts 02139, United States
- Division
of Comparative Medicine, Massachusetts Institute
of Technology, Cambridge, Massachusetts 02139, United States
| | - Giovanni Traverso
- Division
of Gastroenterology, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
- The
David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department
of Mechanical Engineering, Massachusetts
Institute of Technology, Cambridge, Massachusetts 02139, United States
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8
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Pastorin G, Benetti C, Wacker MG. From in vitro to in vivo: A comprehensive guide to IVIVC development for long-acting therapeutics. Adv Drug Deliv Rev 2023; 199:114906. [PMID: 37286087 DOI: 10.1016/j.addr.2023.114906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 05/22/2023] [Accepted: 05/31/2023] [Indexed: 06/09/2023]
Affiliation(s)
- Giorgia Pastorin
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore.
| | - Camillo Benetti
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
| | - Matthias G Wacker
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
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9
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Liu W, Choi SJ, George D, Li L, Zhong Z, Zhang R, Choi SY, Selaru FM, Gracias DH. Untethered shape-changing devices in the gastrointestinal tract. Expert Opin Drug Deliv 2023; 20:1801-1822. [PMID: 38044866 PMCID: PMC10872387 DOI: 10.1080/17425247.2023.2291450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 12/01/2023] [Indexed: 12/05/2023]
Abstract
INTRODUCTION Advances in microfabrication, automation, and computer engineering seek to revolutionize small-scale devices and machines. Emerging trends in medicine point to smart devices that emulate the motility, biosensing abilities, and intelligence of cells and pathogens that inhabit the human body. Two important characteristics of smart medical devices are the capability to be deployed in small conduits, which necessitates being untethered, and the capacity to perform mechanized functions, which requires autonomous shape-changing. AREAS COVERED We motivate the need for untethered shape-changing devices in the gastrointestinal tract for drug delivery, diagnosis, and targeted treatment. We survey existing structures and devices designed and utilized across length scales from the macro to the sub-millimeter. These devices range from triggerable pre-stressed thin film microgrippers and spring-loaded devices to shape-memory and differentially swelling structures. EXPERT OPINION Recent studies demonstrate that when fully enabled, tether-free and shape-changing devices, especially at sub-mm scales, could significantly advance the diagnosis and treatment of GI diseases ranging from cancer and inflammatory bowel disease (IBD) to irritable bowel syndrome (IBS) by improving treatment efficacy, reducing costs, and increasing medication compliance. We discuss the challenges and possibilities associated with ensuring safe, reliable, and autonomous operation of these smart devices.
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Affiliation(s)
- Wangqu Liu
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Soo Jin Choi
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Derosh George
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Ling Li
- Gastroenterology and Hepatology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Zijian Zhong
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Ruili Zhang
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Si Young Choi
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Florin M. Selaru
- Gastroenterology and Hepatology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - David H. Gracias
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Chemistry, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Laboratory for Computational Sensing and Robotics (LCSR), Johns Hopkins University, Baltimore, MD 21218, USA
- Sidney Kimmel Comprehensive Cancer Center (SKCCC), Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
- Center for MicroPhysiological Systems (MPS), Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
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10
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Jeon Y, Maji S, Yang SY, Thaniana MSS, Gierlach A, Ballinger I, Selsing G, Moon I, Jenkins J, Pettinari A, Fabian N, Hayward AM, Traverso G, Chandrakasan AP. Secure and Stable Wireless Communication for an Ingestible Device. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2023; 2023:1-6. [PMID: 38083653 DOI: 10.1109/embc40787.2023.10340731] [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 communication enables an ingestible device to send sensor information and support external on-demand operation while in the gastrointestinal (GI) tract. However, it is challenging to maintain stable wireless communication with an ingestible device that travels inside the dynamic GI environment as this environment easily detunes the antenna and decreases the antenna gain. In this paper, we propose an air-gap based antenna solution to stabilize the antenna gain inside this dynamic environment. By surrounding a chip antenna with 1 ~ 2 mms of air, the antenna is isolated from the environment, recovering its antenna gain and the received signal strength by 12 dB or more according to our in vitro and in vivo evaluation in swine. The air gap makes margin for the high path loss, enabling stable wireless communication at 2.4 GHz that allows users to easily access their ingestible devices by using mobile devices with Bluetooth Low Energy (BLE). On the other hand, the data sent or received over the wireless medium is vulnerable to being eavesdropped on by nearby devices other than authorized users. Therefore, we also propose a lightweight security protocol. The proposed protocol is implemented in low energy without compromising the security level thanks to the base protocol of symmetric challenge-response and Speck, the cipher that is optimized for software implementation.
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11
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Słoma M. 3D printed electronics with nanomaterials. NANOSCALE 2023; 15:5623-5648. [PMID: 36880539 DOI: 10.1039/d2nr06771d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
A large variety of printing, deposition and writing techniques have been incorporated to fabricate electronic devices in the last decades. This approach, printed electronics, has gained great interest in research and practical applications and is successfully fuelling the growth in materials science and technology. On the other hand, a new player is emerging, additive manufacturing, called 3D printing, introducing a new capability to create geometrically complex constructs with low cost and minimal material waste. Having such tremendous technology in our hands, it was just a matter of time to combine advances of printed electronics technology for the fabrication of unique 3D structural electronics. Nanomaterial patterning with additive manufacturing techniques can enable harnessing their nanoscale properties and the fabrication of active structures with unique electrical, mechanical, optical, thermal, magnetic and biological properties. In this paper, we will briefly review the properties of selected nanomaterials suitable for electronic applications and look closer at the current achievements in the synergistic integration of nanomaterials with additive manufacturing technologies to fabricate 3D printed structural electronics. The focus is fixed strictly on techniques allowing as much as possible fabrication of spatial 3D objects, or at least conformal ones on 3D printed substrates, while only selected techniques are adaptable for 3D printing of electronics. Advances in the fabrication of conductive paths and circuits, passive components, antennas, active and photonic components, energy devices, microelectromechanical systems and sensors are presented. Finally, perspectives for development with new nanomaterials, multimaterial and hybrid techniques, bioelectronics, integration with discrete components and 4D-printing are briefly discussed.
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Affiliation(s)
- Marcin Słoma
- Micro- and Nanotechnology Division, Institute of Metrology and Biomedical Engineering, Faculty of Mechatronics, Warsaw University of Technology, 8 Sw. A Boboli St., 02-525 Warsaw, Poland.
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12
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Lu T, Ji S, Jin W, Yang Q, Luo Q, Ren TL. Biocompatible and Long-Term Monitoring Strategies of Wearable, Ingestible and Implantable Biosensors: Reform the Next Generation Healthcare. SENSORS (BASEL, SWITZERLAND) 2023; 23:2991. [PMID: 36991702 PMCID: PMC10054135 DOI: 10.3390/s23062991] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/31/2022] [Accepted: 01/04/2023] [Indexed: 06/19/2023]
Abstract
Sensors enable the detection of physiological indicators and pathological markers to assist in the diagnosis, treatment, and long-term monitoring of diseases, in addition to playing an essential role in the observation and evaluation of physiological activities. The development of modern medical activities cannot be separated from the precise detection, reliable acquisition, and intelligent analysis of human body information. Therefore, sensors have become the core of new-generation health technologies along with the Internet of Things (IoTs) and artificial intelligence (AI). Previous research on the sensing of human information has conferred many superior properties on sensors, of which biocompatibility is one of the most important. Recently, biocompatible biosensors have developed rapidly to provide the possibility for the long-term and in-situ monitoring of physiological information. In this review, we summarize the ideal features and engineering realization strategies of three different types of biocompatible biosensors, including wearable, ingestible, and implantable sensors from the level of sensor designing and application. Additionally, the detection targets of the biosensors are further divided into vital life parameters (e.g., body temperature, heart rate, blood pressure, and respiratory rate), biochemical indicators, as well as physical and physiological parameters based on the clinical needs. In this review, starting from the emerging concept of next-generation diagnostics and healthcare technologies, we discuss how biocompatible sensors revolutionize the state-of-art healthcare system unprecedentedly, as well as the challenges and opportunities faced in the future development of biocompatible health sensors.
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Affiliation(s)
- Tian Lu
- School of Integrated Circuit and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Shourui Ji
- School of Integrated Circuit and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Weiqiu Jin
- Shanghai Lung Cancer Center, Shanghai Chest Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Qisheng Yang
- School of Integrated Circuit and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Qingquan Luo
- Shanghai Lung Cancer Center, Shanghai Chest Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Tian-Ling Ren
- School of Integrated Circuit and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
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13
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Feig VR, Remlova E, Muller B, Kuosmanen JLP, Lal N, Ginzburg A, Nan K, Patel A, Jebran AM, Bantwal MP, Fabian N, Ishida K, Jenkins J, Rosenboom JG, Park S, Madani W, Hayward A, Traverso G. Actively Triggerable Metals via Liquid Metal Embrittlement for Biomedical Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2208227. [PMID: 36321332 DOI: 10.1002/adma.202208227] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/21/2022] [Indexed: 06/16/2023]
Abstract
Actively triggerable materials, which break down upon introduction of an exogenous stimulus, enable precise control over the lifetime of biomedical technologies, as well as adaptation to unforeseen circumstances, such as changes to an established treatment plan. Yet, most actively triggerable materials are low-strength polymers and hydrogels with limited long-term durability. By contrast, metals possess advantageous functional properties, including high mechanical strength and conductivity, that are desirable across several applications within biomedicine. To realize actively triggerable metals, a mechanism called liquid metal embrittlement is leveraged, in which certain liquid metals penetrate the grain boundaries of certain solid metals and cause them to dramatically weaken or disintegrate. In this work, it is demonstrated that eutectic gallium indium (EGaIn), a biocompatible alloy of gallium, can be formulated to reproducibly trigger the breakdown of aluminum within different physiologically relevant environments. The breakdown behavior of aluminum after triggering can further be readily controlled by manipulating its grain structure. Finally, three possible use cases of biomedical devices constructed from actively triggerable metals are demonstrated.
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Affiliation(s)
- Vivian R Feig
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Eva Remlova
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Department of Health Sciences and Technology, Eidgenössische Technische Hochschule Zürich, Universitätstrasse 2, Zurich, 8092, Switzerland
| | - Benjamin Muller
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Johannes L P Kuosmanen
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Nikhil Lal
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Anna Ginzburg
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Department of Cell/Cellular and Molecular Biology, Northeastern University, Boston, MA, 02115, USA
| | - Kewang Nan
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Ashka Patel
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Department of Bioengineering, Northeastern University, Boston, MA, 02115, USA
| | - Ahmad Mujtaba Jebran
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Meghana Prabhu Bantwal
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Department of Biotechnology, Northeastern University, Boston, MA, 02115, USA
| | - Niora Fabian
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Keiko Ishida
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Joshua Jenkins
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Jan-Georg Rosenboom
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Sanghyun Park
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Wiam Madani
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Alison Hayward
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Giovanni Traverso
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
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14
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Sharma S, Ramadi KB, Poole NH, Srinivasan SS, Ishida K, Kuosmanen J, Jenkins J, Aghlmand F, Swift MB, Shapiro MG, Traverso G, Emami A. Location-aware ingestible microdevices for wireless monitoring of gastrointestinal dynamics. NATURE ELECTRONICS 2023; 6:242-256. [PMID: 37745833 PMCID: PMC10516531 DOI: 10.1038/s41928-023-00916-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 01/04/2023] [Indexed: 09/26/2023]
Abstract
Localization and tracking of ingestible microdevices in the gastrointestinal (GI) tract is valuable for the diagnosis and treatment of GI disorders. Such systems require a large field-of-view of tracking, high spatiotemporal resolution, wirelessly operated microdevices and a non-obstructive field generator that is safe to use in practical settings. However, the capabilities of current systems remain limited. Here, we report three dimensional (3D) localization and tracking of wireless ingestible microdevices in the GI tract of large animals in real time and with millimetre-scale resolution. This is achieved by generating 3D magnetic field gradients in the GI field-of-view using high-efficiency planar electromagnetic coils that encode each spatial point with a distinct magnetic field magnitude. The field magnitude is measured and transmitted by the miniaturized, low-power and wireless microdevices to decode their location as they travel through the GI tract. This system could be useful for quantitative assessment of the GI transit-time, precision targeting of therapeutic interventions and minimally invasive procedures.
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Affiliation(s)
- Saransh Sharma
- Department of Electrical Engineering, California Institute of Technology, Pasadena, CA, USA
- These authors contributed equally: Saransh Sharma, Khalil B. Ramadi
| | - Khalil B. Ramadi
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Gastroenterology, Hepatology and Endoscopy, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Division of Engineering, New York University Abu Dhabi, Abu Dhabi, UAE
- Tandon School of Engineering, New York University, New York, NY, USA
- These authors contributed equally: Saransh Sharma, Khalil B. Ramadi
| | - Nikhil H. Poole
- Department of Electrical Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Shriya S. Srinivasan
- Division of Gastroenterology, Hepatology and Endoscopy, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Keiko Ishida
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Johannes Kuosmanen
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Josh Jenkins
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Fatemeh Aghlmand
- Department of Electrical Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Margaret B. Swift
- Department of Chemical Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Mikhail G. Shapiro
- Department of Chemical Engineering, California Institute of Technology, Pasadena, CA, USA
- Andrew and Peggy Cherng Department of Medical Engineering, California Institute of Technology, Pasadena, CA, USA
- These authors jointly supervised this work: Mikhail G. Shapiro, Giovanni Traverso, Azita Emami
| | - Giovanni Traverso
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Gastroenterology, Hepatology and Endoscopy, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- These authors jointly supervised this work: Mikhail G. Shapiro, Giovanni Traverso, Azita Emami
| | - Azita Emami
- Department of Electrical Engineering, California Institute of Technology, Pasadena, CA, USA
- Andrew and Peggy Cherng Department of Medical Engineering, California Institute of Technology, Pasadena, CA, USA
- These authors jointly supervised this work: Mikhail G. Shapiro, Giovanni Traverso, Azita Emami
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15
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Huang H, Lyu Y, Nan K. Soft robot-enabled controlled release of oral drug formulations. SOFT MATTER 2023; 19:1269-1281. [PMID: 36723379 DOI: 10.1039/d2sm01624a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The creation of highly effective oral drug delivery systems (ODDSs) has long been the main objective of pharmaceutical research. Multidisciplinary efforts involving materials, electronics, control, and pharmaceutical sciences encourage the development of robot-enabled ODDSs. Compared with conventional rigid robots, soft robots potentially offer better mechanical compliance and biocompatibility with biological tissues, more versatile shape control and maneuverability, and multifunctionality. In this paper, we first describe and highlight the importance of manipulating drug release kinetics, i.e. pharmaceutical kinetics. We then introduce an overview of state-of-the-art soft robot-based ODDSs comprising resident, shape-programming, locomotive, and integrated soft robots. Finally, the challenges and outlook regarding future soft robot-based ODDS development are discussed.
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Affiliation(s)
- Hao Huang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
| | - Yidan Lyu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Kewang Nan
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China.
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16
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Liu G, Lu Y, Zhang F, Liu Q. Electronically powered drug delivery devices: considerations and challenges. Expert Opin Drug Deliv 2022; 19:1636-1649. [PMID: 36305080 DOI: 10.1080/17425247.2022.2141709] [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: 01/25/2023]
Abstract
INTRODUCTION Electronically powered drug delivery devices enable a controlled drug release route for a more convenient and painless way with reduced side effects. The current advances in microfabrication and microelectronics have facilitated miniaturization and intelligence with the integration of sensors and wireless communication modules. These devices have become an essential component of commercialized on-demand drug delivery. AREAS COVERED This review aims to provide a concise overview of current progress in electronically powered drug devices, focusing on delivery strategies, manufacturing techniques, and control circuit design with specific examples. EXPERT OPINION The application of electronically powered drug delivery systems is now considered a feasible therapeutic approach with improved drug release efficiency and increased patient comfort. It is anticipated that these technologies will gradually fulfill clinical needs and resolve commercialization challenges in the future. This review discusses the current advances in electronic drug delivery devices, especially focusing on designing strategies to achieve an effective drug release, as well as the perspectives and challenges for future applications in clinical therapy.
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Affiliation(s)
- Guang Liu
- Biosensor National Special Laboratory, Key Laboratory for Biomedical Engineering of Education Ministry, Department of Biomedical Engineering, Zhejiang University, Hangzhou, P. R. China
| | - Yanli Lu
- Biosensor National Special Laboratory, Key Laboratory for Biomedical Engineering of Education Ministry, Department of Biomedical Engineering, Zhejiang University, Hangzhou, P. R. China
| | - Fenni Zhang
- Biosensor National Special Laboratory, Key Laboratory for Biomedical Engineering of Education Ministry, Department of Biomedical Engineering, Zhejiang University, Hangzhou, P. R. China
| | - Qingjun Liu
- Biosensor National Special Laboratory, Key Laboratory for Biomedical Engineering of Education Ministry, Department of Biomedical Engineering, Zhejiang University, Hangzhou, P. R. China
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17
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Greenwood TE, Cagle H, Pulver B, Pak OS, Lin Kong Y. Ingestible Functional Magnetic Robot with Localized Flexibility (MR-LF). ADVANCED INTELLIGENT SYSTEMS (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 4:2200166. [PMID: 37994359 PMCID: PMC10665024 DOI: 10.1002/aisy.202200166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Indexed: 11/24/2023]
Abstract
The integration of an ingestible dosage form with sensing, actuation, and drug delivery capabilities can enable a broad range of surgical-free diagnostic and treatment strategies. However, the gastrointestinal (GI) tract is a highly constrained and complex luminal construct that fundamentally limits the size of an ingestible system. Recent advancements in mesoscale magnetic crawlers have demonstrated the ability to effectively traverse complex and confined systems by leveraging magnetic fields to induce contraction and bending-based locomotion. However, the integration of functional components (e.g., electronics) in the proposed ingestible system remains fundamentally challenging. Herein, the creation of a centralized compartment in a magnetic robot by imparting localized flexibility (MR-LF) is demonstrated. The centralized compartment enables MR-LF to be readily integrated with modular functional components and payloads, such as commercial off-the-shelf electronics and medication, while preserving its bidirectionality in an ingestible form factor. The ability of MR-LF to incorporate electronics, perform drug delivery, guide continuum devices such as catheters, and navigate air-water environments in confined lumens is demonstrated. The MR-LF enables functional integration to create a highly-integrated ingestible system that can ultimately address a broad range of unmet clinical needs.
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Affiliation(s)
- Taylor E Greenwood
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112 (USA)
| | - Henry Cagle
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112 (USA)
| | - Benson Pulver
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112 (USA)
| | - On Shun Pak
- Department of Mechanical Engineering, Santa Clara University, Santa Clara, CA 95053 (USA)
| | - Yong Lin Kong
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112 (USA)
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18
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Yan B. Actuators for Implantable Devices: A Broad View. MICROMACHINES 2022; 13:1756. [PMID: 36296109 PMCID: PMC9610948 DOI: 10.3390/mi13101756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/12/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
The choice of actuators dictates how an implantable biomedical device moves. Specifically, the concept of implantable robots consists of the three pillars: actuators, sensors, and powering. Robotic devices that require active motion are driven by a biocompatible actuator. Depending on the actuating mechanism, different types of actuators vary remarkably in strain/stress output, frequency, power consumption, and durability. Most reviews to date focus on specific type of actuating mechanism (electric, photonic, electrothermal, etc.) for biomedical applications. With a rapidly expanding library of novel actuators, however, the granular boundaries between subcategories turns the selection of actuators a laborious task, which can be particularly time-consuming to those unfamiliar with actuation. To offer a broad view, this study (1) showcases the recent advances in various types of actuating technologies that can be potentially implemented in vivo, (2) outlines technical advantages and the limitations of each type, and (3) provides use-specific suggestions on actuator choice for applications such as drug delivery, cardiovascular, and endoscopy implants.
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Affiliation(s)
- Bingxi Yan
- Department of Electrical and Computer Engineering, Ohio State University, Columbus, OH 43210, USA
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19
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Nan K, Feig VR, Ying B, Howarth JG, Kang Z, Yang Y, Traverso G. Mucosa-interfacing electronics. NATURE REVIEWS. MATERIALS 2022; 7:908-925. [PMID: 36124042 PMCID: PMC9472746 DOI: 10.1038/s41578-022-00477-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 07/28/2022] [Indexed: 06/15/2023]
Abstract
The surface mucosa that lines many of our organs houses myriad biometric signals and, therefore, has great potential as a sensor-tissue interface for high-fidelity and long-term biosensing. However, progress is still nascent for mucosa-interfacing electronics owing to challenges with establishing robust sensor-tissue interfaces; device localization, retention and removal; and power and data transfer. This is in sharp contrast to the rapidly advancing field of skin-interfacing electronics, which are replacing traditional hospital visits with minimally invasive, real-time, continuous and untethered biosensing. This Review aims to bridge the gap between skin-interfacing electronics and mucosa-interfacing electronics systems through a comparison of the properties and functions of the skin and internal mucosal surfaces. The major physiological signals accessible through mucosa-lined organs are surveyed and design considerations for the next generation of mucosa-interfacing electronics are outlined based on state-of-the-art developments in bio-integrated electronics. With this Review, we aim to inspire hardware solutions that can serve as a foundation for developing personalized biosensing from the mucosa, a relatively uncharted field with great scientific and clinical potential.
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Affiliation(s)
- Kewang Nan
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA USA
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA USA
| | - Vivian R. Feig
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA USA
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA USA
| | - Binbin Ying
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA USA
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA USA
| | - Julia G. Howarth
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA USA
| | - Ziliang Kang
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA USA
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA USA
| | - Yiyuan Yang
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA USA
| | - Giovanni Traverso
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA USA
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA USA
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20
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Administration strategies and smart devices for drug release in specific sites of the upper GI tract. J Control Release 2022; 348:537-552. [PMID: 35690278 DOI: 10.1016/j.jconrel.2022.06.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 06/01/2022] [Accepted: 06/04/2022] [Indexed: 10/18/2022]
Abstract
Targeting the release of drugs in specific sites of the upper GI tract would meet local therapeutic goals, improve the bioavailability of specific drugs and help overcoming compliance-related limitations, especially in chronic illnesses of great social/economic impact and involving polytherapies (e.g. Parkinson's and Alzeimer's disease, tubercolosis, malaria, HIV, HCV). It has been traditionally pursued using gastroretentive (GR) systems, i.e. low-density, high-density, magnetic, adhesive and expandable devices. More recently, the interest towards oral administration of biologics has prompted the development of novel drug delivery systems (DDSs) provided with needles and able to inject different formulations in the mucosa of the upper GI tract and particularly of esophagus, stomach or small intestine. Besides comprehensive literature analysis, DDSs identified as smart devices in view of their high degree of complexity in terms of design, working mechanism, materials employed and manufacturing steps were discussed making use of graphic tools.
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21
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Development and Validation of a Novel Tool for Assessing the Environmental Impact of 3D Printing Technologies: A Pharmaceutical Perspective. Pharmaceutics 2022; 14:pharmaceutics14050933. [PMID: 35631519 PMCID: PMC9146618 DOI: 10.3390/pharmaceutics14050933] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 04/22/2022] [Accepted: 04/22/2022] [Indexed: 12/12/2022] Open
Abstract
Technological advancements have created infinite opportunities and rendered our life easier at several fronts. Nonetheless, the environment has suffered the aftermaths of modernization. Ironically, the pharmaceutical industry was found to be a significant contributor to environmental deterioration. To tackle this issue, continuous eco-evaluation of newly introduced technologies is crucial. Three-dimensional printing (3DP) is rapidly establishing its routes in different industries. Interestingly, 3DP is revolutionising the production of pharmaceuticals and is regarded as a promising approach for the fabrication of patient-centric formulations. Despite the increasing applications in the pharmaceutical field, tools that evaluate the environmental impacts of 3DP are lacking. Energy and solvent consumption, waste generation, and disposal are the main associated factors that present major concerns. For the first time, we are proposing a quantitative tool, the index of Greenness Assessment of Printed Pharmaceuticals (iGAPP), that evaluates the greenness of the different 3DP technologies used in the pharmaceutical industry. The tool provides a colour-coded pictogram and a numerical score indicating the overall greenness of the employed printing method. Validation was performed by constructing the greenness profile of selected formulations produced using the different 3DP techniques. This tool is simple to use and indicates the greenness level of the procedures involved, thereby creating an opportunity to modify the processes for more sustainable practices.
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22
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Ali MA, Hu C, Yttri EA, Panat R. Recent Advances in 3D Printing of Biomedical Sensing Devices. ADVANCED FUNCTIONAL MATERIALS 2022; 32:2107671. [PMID: 36324737 PMCID: PMC9624470 DOI: 10.1002/adfm.202107671] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Additive manufacturing, also called 3D printing, is a rapidly evolving technique that allows for the fabrication of functional materials with complex architectures, controlled microstructures, and material combinations. This capability has influenced the field of biomedical sensing devices by enabling the trends of device miniaturization, customization, and elasticity (i.e., having mechanical properties that match with the biological tissue). In this paper, the current state-of-the-art knowledge of biomedical sensors with the unique and unusual properties enabled by 3D printing is reviewed. The review encompasses clinically important areas involving the quantification of biomarkers (neurotransmitters, metabolites, and proteins), soft and implantable sensors, microfluidic biosensors, and wearable haptic sensors. In addition, the rapid sensing of pathogens and pathogen biomarkers enabled by 3D printing, an area of significant interest considering the recent worldwide pandemic caused by the novel coronavirus, is also discussed. It is also described how 3D printing enables critical sensor advantages including lower limit-of-detection, sensitivity, greater sensing range, and the ability for point-of-care diagnostics. Further, manufacturing itself benefits from 3D printing via rapid prototyping, improved resolution, and lower cost. This review provides researchers in academia and industry a comprehensive summary of the novel possibilities opened by the progress in 3D printing technology for a variety of biomedical applications.
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Affiliation(s)
- Md Azahar Ali
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15238, USA
| | - Chunshan Hu
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15238, USA
| | - Eric A Yttri
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Rahul Panat
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15238, USA
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23
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Jones GB, Bryant A, Wright J. Democratizing Global Health Care Through Scalable Emergent (Beyond the Mobile) Wireless Technologies. JMIR BIOMEDICAL ENGINEERING 2022; 7:e31079. [PMID: 38875689 PMCID: PMC11041427 DOI: 10.2196/31079] [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] [Received: 06/08/2021] [Revised: 07/22/2021] [Accepted: 12/20/2021] [Indexed: 01/17/2023] Open
Abstract
Advances in mobile phone technologies coupled with the availability of modern wireless networks are beginning to have a marked impact on digital health through the growing array of apps and connected devices. That said, limited deployment outside of developed nations will require additional approaches to collectively reach the 8 billion people on earth. Another consideration for development of digital health centered around mobile devices lies in the need for pairing steps, firmware updates, and a variety of user inputs, which can increase friction for the patient. An alternate, so-called Beyond the Mobile approach where medicaments, devices, and health services communicate directly to the cloud offers an attractive means to expand and fully realize our connected health utopia. In addition to offering highly personalized experiences, such approaches could address cost, security, and convenience concerns associated with smartphone-based systems, translating to improved engagement and adherence rates among patients. Furthermore, connecting these Internet of Medical Things instruments through next-generation networks offers the potential to reach patients with acute needs in nonurban regions of developing nations. Herein, we outline how deployment of Beyond the Mobile technologies through low-power wide-area networks could offer a scalable means to democratize digital health and contribute to improved patient outcomes globally.
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Affiliation(s)
- Graham B Jones
- Technical Research and Development, Novartis Pharmaceuticals, East Hanover, NJ, United States
| | - Andrew Bryant
- Technical Research and Development, Novartis AG, Basel, Switzerland
| | - Justin Wright
- Global Drug Development Connected Health, Novartis Pharmaceuticals, East Hanover, NJ, United States
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24
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Huang HW, de Gruijl D, Fritz P, Kemkar A, Ballinger I, Selsing G, Chai PR, Traverso G. Encapsulation of Gas Sensors to Operate in the Gastrointestinal Tract for Continuous Monitoring. PROCEEDINGS OF IEEE SENSORS. IEEE INTERNATIONAL CONFERENCE ON SENSORS 2022; 2022:10.1109/sensors52175.2022.9967279. [PMID: 36570066 PMCID: PMC9783471 DOI: 10.1109/sensors52175.2022.9967279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Recent advances in ingestible sensors have enabled in situ detection of gastrointestinal (GI) biomarkers which shows great potential in shifting the paradigm of diagnosing GI and systemic diseases. However, the humid, acidic gastric environment is extremely harsh to electrically powered sensors, which limits their capacity for long term, continuous monitoring. Here, we propose an encapsulation approach for a gas sensor integrated into a nasogastric (NG) tube that overcomes chemical corrosion, electrical short, and mechanical collision in a gastric environment to enable continuous gaseous biomarkers monitoring. The coating effects on the sensitivity, signal latency, and repeatability are investigated. Our long-term continuous monitoring in vitro results show that the proposed coating method enables the gas sensors to function reliably and consistently in the simulated GI environment for more than 1 week. The encapsulation is composed of Polycaprolactone (PCL) to protect against mechanical scratching and Parylene C to prevent a sensor from chemical corrosion and electrical short. The average life-time of the sensor with 10 micrometers Parylene coating is about 3.6 days. Increasing the coating thickness to 20 micrometers results in 10.0 days. In terms of repeatability, 10 micrometers and 20 micrometers Parylene C coated sensors have a standard deviation of 1.30% and 2.10% for its within sensor response, and 5.19% and 3.06% between sensors respectively.
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Affiliation(s)
- Hen-Wei Huang
- Dept. of Medicine., Harvard Medical School, Boston, United States
| | - David de Gruijl
- Dept. of Medicine., Harvard Medical School, Boston, United States
| | - Philip Fritz
- Dept. of Medicine., Harvard Medical School, Boston, United States
| | - Abhijay Kemkar
- Dept. of Medicine., Harvard Medical School, Boston, United States
| | - Ian Ballinger
- Dept. of Medicine., Harvard Medical School, Boston, United States
| | - George Selsing
- Dept. of Mechanical Engineering., Massachusetts Institute of Technology, Cambridge, United States
| | - Peter Ray Chai
- Dept. of Emergency Medicine., Harvard Medical School, Boston, United States
| | - Giovanni Traverso
- Dept. of Medicine., Harvard Medical School, Boston, United States,Dept. of Mechanical Engineering., Massachusetts Institute of Technology, Cambridge, United States
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25
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Steiger C, Phan NV, Huang H, Sun H, Chu JN, Reker D, Gwynne D, Collins J, Tamang S, McManus R, Lopes A, Hayward A, Baron RM, Kim EY, Traverso G. Dynamic Monitoring of Systemic Biomarkers with Gastric Sensors. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2102861. [PMID: 34713599 PMCID: PMC8693042 DOI: 10.1002/advs.202102861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 08/07/2021] [Indexed: 06/13/2023]
Abstract
Continuous monitoring in the intensive care setting has transformed the capacity to rapidly respond with interventions for patients in extremis. Noninvasive monitoring has generally been limited to transdermal or intravascular systems coupled to transducers including oxygen saturation or pressure. Here it is hypothesized that gastric fluid (GF) and gases, accessible through nasogastric (NG) tubes, commonly found in intensive care settings, can provide continuous access to a broad range of biomarkers. A broad characterization of biomarkers in swine GF coupled to time-matched serum is conducted . The relationship and kinetics of GF-derived analyte level dynamics is established by correlating these to serum levels in an acute renal failure and an inducible stress model performed in swine. The ability to monitor ketone levels and an inhaled anaesthetic agent (isoflurane) in vivo is demonstrated with novel NG-compatible sensor systems in swine. Gastric access remains a main stay in the care of the critically ill patient, and here the potential is established to harness this establishes route for analyte evaluation for clinical management.
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Affiliation(s)
- Christoph Steiger
- Koch Institute for Integrative Cancer ResearchMassachusetts Institute of TechnologyCambridgeMA02139USA
- Division of GastroenterologyBrigham and Women's HospitalHarvard Medical SchoolBostonMA02115USA
| | - Nhi V. Phan
- Koch Institute for Integrative Cancer ResearchMassachusetts Institute of TechnologyCambridgeMA02139USA
| | - Hen‐Wei Huang
- Koch Institute for Integrative Cancer ResearchMassachusetts Institute of TechnologyCambridgeMA02139USA
- Division of GastroenterologyBrigham and Women's HospitalHarvard Medical SchoolBostonMA02115USA
| | - Haoying Sun
- Koch Institute for Integrative Cancer ResearchMassachusetts Institute of TechnologyCambridgeMA02139USA
| | - Jacqueline N. Chu
- Koch Institute for Integrative Cancer ResearchMassachusetts Institute of TechnologyCambridgeMA02139USA
- Division of GastroenterologyMassachusetts General HospitalHarvard Medical SchoolBostonMA02115USA
| | - Daniel Reker
- Koch Institute for Integrative Cancer ResearchMassachusetts Institute of TechnologyCambridgeMA02139USA
- Division of GastroenterologyBrigham and Women's HospitalHarvard Medical SchoolBostonMA02115USA
| | - Declan Gwynne
- Koch Institute for Integrative Cancer ResearchMassachusetts Institute of TechnologyCambridgeMA02139USA
- Division of GastroenterologyBrigham and Women's HospitalHarvard Medical SchoolBostonMA02115USA
| | - Joy Collins
- Koch Institute for Integrative Cancer ResearchMassachusetts Institute of TechnologyCambridgeMA02139USA
| | - Siddartha Tamang
- Koch Institute for Integrative Cancer ResearchMassachusetts Institute of TechnologyCambridgeMA02139USA
| | - Rebecca McManus
- Koch Institute for Integrative Cancer ResearchMassachusetts Institute of TechnologyCambridgeMA02139USA
| | - Aaron Lopes
- Koch Institute for Integrative Cancer ResearchMassachusetts Institute of TechnologyCambridgeMA02139USA
| | - Alison Hayward
- Koch Institute for Integrative Cancer ResearchMassachusetts Institute of TechnologyCambridgeMA02139USA
- Division of Comparative MedicineMassachusetts Institute of TechnologyCambridgeMA02139USA
| | - Rebecca M. Baron
- Division of Pulmonary and Critical Care MedicineDepartment of MedicineBrigham and Women's Hospital, Harvard Medical SchoolBostonMA02115USA
| | - Edy Y. Kim
- Division of Pulmonary and Critical Care MedicineDepartment of MedicineBrigham and Women's Hospital, Harvard Medical SchoolBostonMA02115USA
| | - Giovanni Traverso
- Koch Institute for Integrative Cancer ResearchMassachusetts Institute of TechnologyCambridgeMA02139USA
- Division of GastroenterologyBrigham and Women's HospitalHarvard Medical SchoolBostonMA02115USA
- Department of Mechanical EngineeringMassachusetts Institute of TechnologyCambridgeMA02139USA
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26
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Awad A, Trenfield SJ, Pollard TD, Ong JJ, Elbadawi M, McCoubrey LE, Goyanes A, Gaisford S, Basit AW. Connected healthcare: Improving patient care using digital health technologies. Adv Drug Deliv Rev 2021; 178:113958. [PMID: 34478781 DOI: 10.1016/j.addr.2021.113958] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 07/12/2021] [Accepted: 08/29/2021] [Indexed: 12/22/2022]
Abstract
Now more than ever, traditional healthcare models are being overhauled with digital technologies of Healthcare 4.0 increasingly adopted. Worldwide, digital devices are improving every stage of the patient care pathway. For one, sensors are being used to monitor patient metrics 24/7, permitting swift diagnosis and interventions. At the treatment stage, 3D printers are under investigation for the concept of personalised medicine by allowing patients access to on-demand, customisable therapeutics. Robots are also being explored for treatment, by empowering precision surgery, rehabilitation, or targeted drug delivery. Within medical logistics, drones are being leveraged to deliver critical treatments to remote areas, collect samples, and even provide emergency aid. To enable seamless integration within healthcare, the Internet of Things technology is being exploited to form closed-loop systems that remotely communicate with one another. This review outlines the most promising healthcare technologies and devices, their strengths, drawbacks, and opportunities for clinical adoption.
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Affiliation(s)
- Atheer Awad
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Sarah J Trenfield
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Thomas D Pollard
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Jun Jie Ong
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Moe Elbadawi
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Laura E McCoubrey
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Alvaro Goyanes
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK; FabRx Ltd., Henwood House, Henwood, Ashford, Kent TN24 8DH, UK; Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia, Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782, Spain
| | - Simon Gaisford
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK; FabRx Ltd., Henwood House, Henwood, Ashford, Kent TN24 8DH, UK
| | - Abdul W Basit
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK; FabRx Ltd., Henwood House, Henwood, Ashford, Kent TN24 8DH, UK.
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27
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Won C, Kwon C, Park K, Seo J, Lee T. Electronic Drugs: Spatial and Temporal Medical Treatment of Human Diseases. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005930. [PMID: 33938022 DOI: 10.1002/adma.202005930] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/11/2020] [Indexed: 06/12/2023]
Abstract
Recent advances in diagnostics and medicines emphasize the spatial and temporal aspects of monitoring and treating diseases. However, conventional therapeutics, including oral administration and injection, have difficulties meeting these aspects due to physiological and technological limitations, such as long-term implantation and a narrow therapeutic window. As an innovative approach to overcome these limitations, electronic devices known as electronic drugs (e-drugs) have been developed to monitor real-time body signals and deliver specific treatments to targeted tissues or organs. For example, ingestible and patch-type e-drugs could detect changes in biomarkers at the target sites, including the gastrointestinal (GI) tract and the skin, and deliver therapeutics to enhance healing in a spatiotemporal manner. However, medical treatments often require invasive surgical procedures and implantation of medical equipment for either short or long-term use. Therefore, approaches that could minimize implantation-associated side effects, such as inflammation and scar tissue formation, while maintaining high functionality of e-drugs, are highly needed. Herein, the importance of the spatial and temporal aspects of medical treatment is thoroughly reviewed along with how e-drugs use cutting-edge technological innovations to deal with unresolved medical challenges. Furthermore, diverse uses of e-drugs in clinical applications and the future perspectives of e-drugs are discussed.
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Affiliation(s)
- Chihyeong Won
- Nanobio Device Laboratory, School of Electrical and Electronic Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Chaebeen Kwon
- Nanobio Device Laboratory, School of Electrical and Electronic Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Kijun Park
- Biological Interfaces and Sensor Systems Laboratory, School of Electrical and Electronic Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Jungmok Seo
- Biological Interfaces and Sensor Systems Laboratory, School of Electrical and Electronic Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Taeyoon Lee
- Nanobio Device Laboratory, School of Electrical and Electronic Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
- Center for BioMicrosystems, Brain Science Institute, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul, 02792, Republic of Korea
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28
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Eleftheriadis GK, Genina N, Boetker J, Rantanen J. Modular design principle based on compartmental drug delivery systems. Adv Drug Deliv Rev 2021; 178:113921. [PMID: 34390776 DOI: 10.1016/j.addr.2021.113921] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 07/21/2021] [Accepted: 08/09/2021] [Indexed: 12/28/2022]
Abstract
The current manufacturing solutions for oral solid dosage forms are fundamentally based on technologies from the 19th century. This approach is well suited for mass production of one-size-fits-all products; however, it does not allow for a straight-forward personalization and mass customization of the pharmaceutical end-product. In order to provide better therapies to the patients, a need for innovative manufacturing concepts and product design principles has been rising. Additive manufacturing opens up a possibility for compartmentalization of drug products, including design of spatially separated multidrug and functional excipient compartments. This compartmentalized solution can be further expanded to modular design thinking. Modular design is referring to combination of building blocks containing a given amount of drug compound(s) and related functional excipients into a larger final product. Implementation of modular design principles is paving the way for implementing the emerging personalization potential within health sciences by designing compartmental and reactive product structures that can be manufactured based on the individual needs of each patient. This review will introduce the existing compartmentalized product design principles and discuss the integration of these into edible electronics allowing for innovative control of drug release.
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Affiliation(s)
| | - Natalja Genina
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - Johan Boetker
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - Jukka Rantanen
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark.
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29
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Søgaard PP, Lind M, Christiansen CR, Petersson K, Clauss A, Caffarel-Salvador E. Future Perspectives of Oral Delivery of Next Generation Therapies for Treatment of Skin Diseases. Pharmaceutics 2021; 13:1722. [PMID: 34684016 PMCID: PMC8537019 DOI: 10.3390/pharmaceutics13101722] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/08/2021] [Accepted: 10/08/2021] [Indexed: 12/12/2022] Open
Abstract
Gene therapies have conspicuously bloomed in recent years as evidenced by the increasing number of cell-, gene-, and oligo-based approved therapies. These therapies hold great promise for dermatological disorders with high unmet need, for example, epidermolysis bullosa or pachyonychia congenita. Furthermore, the recent clinical success of clustered regularly interspaced short palindromic repeats (CRISPR) for genome editing in humans will undoubtedly contribute to defining a new wave of therapies. Like biologics, naked nucleic acids are denatured inside the gastrointestinal tract and need to be administered via injections. For a treatment to be effective, a sufficient amount of a given regimen needs to reach systemic circulation. Multiple companies are racing to develop novel oral drug delivery approaches to circumvent the proteolytic and acidic milieu of the gastrointestinal tract. In this review, we provide an overview of the evolution of the gene therapy landscape, with a deep focus on gene and oligonucleotide therapies in clinical trials aimed at treating skin diseases. We then examine the progress made in drug delivery, with particular attention on the peptide field and drug-device combinations that deliver macromolecules into the gastrointestinal tract. Such novel devices could potentially be applied to administer other therapeutics including genes and CRISPR-based systems.
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Affiliation(s)
- Pia Pernille Søgaard
- Regenerative Medicine Department, LEO Pharma A/S, Industriparken 55, 2750 Ballerup, Denmark; (P.P.S.); (C.R.C.); (A.C.)
| | - Marianne Lind
- Explorative Formulation and Technologies, LEO Pharma A/S, Industriparken 55, 2750 Ballerup, Denmark; (M.L.); (K.P.)
| | | | - Karsten Petersson
- Explorative Formulation and Technologies, LEO Pharma A/S, Industriparken 55, 2750 Ballerup, Denmark; (M.L.); (K.P.)
| | - Adam Clauss
- Regenerative Medicine Department, LEO Pharma A/S, Industriparken 55, 2750 Ballerup, Denmark; (P.P.S.); (C.R.C.); (A.C.)
| | - Ester Caffarel-Salvador
- Regenerative Medicine Department, LEO Pharma A/S, Industriparken 55, 2750 Ballerup, Denmark; (P.P.S.); (C.R.C.); (A.C.)
- LEO Science & Tech Hub, One Broadway, Cambridge, MA 02142, USA
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30
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An easy 3D printing approach to manufacture vertical diffusion cells for in vitro release and permeation studies. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102661] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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31
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Kalidasan V, Yang X, Xiong Z, Li RR, Yao H, Godaba H, Obuobi S, Singh P, Guan X, Tian X, Kurt SA, Li Z, Mukherjee D, Rajarethinam R, Chong CS, Wang JW, Ee PLR, Loke W, Tee BCK, Ouyang J, Charles CJ, Ho JS. Wirelessly operated bioelectronic sutures for the monitoring of deep surgical wounds. Nat Biomed Eng 2021; 5:1217-1227. [PMID: 34654900 DOI: 10.1038/s41551-021-00802-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 09/02/2021] [Indexed: 02/07/2023]
Abstract
Monitoring surgical wounds post-operatively is necessary to prevent infection, dehiscence and other complications. However, the monitoring of deep surgical sites is typically limited to indirect observations or to costly radiological investigations that often fail to detect complications before they become severe. Bioelectronic sensors could provide accurate and continuous monitoring from within the body, but the form factors of existing devices are not amenable to integration with sensitive wound tissues and to wireless data transmission. Here we show that multifilament surgical sutures functionalized with a conductive polymer and incorporating pledgets with capacitive sensors operated via radiofrequency identification can be used to monitor physicochemical states of deep surgical sites. We show in live pigs that the sutures can monitor wound integrity, gastric leakage and tissue micromotions, and in rodents that the healing outcomes are equivalent to those of medical-grade sutures. Battery-free wirelessly operated bioelectronic sutures may facilitate post-surgical monitoring in a wide range of interventions.
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Affiliation(s)
- Viveka Kalidasan
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.
| | - Xin Yang
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
| | - Ze Xiong
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore. .,Institute for Health Innovation and Technology, National University of Singapore, Singapore, Singapore. .,The N.1 Institute for Health, National University of Singapore, Singapore, Singapore.
| | - Renee R Li
- Cardiovascular Research Institute, National University Heart Centre, Singapore, Singapore.,Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Haicheng Yao
- Department of Materials Science and Engineering, National University of Singapore, Singapore, Singapore
| | - Hareesh Godaba
- Department of Materials Science and Engineering, National University of Singapore, Singapore, Singapore
| | - Sybil Obuobi
- Department of Pharmacy, National University of Singapore, Singapore, Singapore.,Drug Transport and Delivery Research Group, Department of Pharmacy, Faculty of Health Sciences, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Priti Singh
- Faculty of Dentistry, National University of Singapore, Singapore, Singapore
| | - Xin Guan
- Department of Materials Science and Engineering, National University of Singapore, Singapore, Singapore
| | - Xi Tian
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
| | - Selman A Kurt
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
| | - Zhipeng Li
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
| | - Devika Mukherjee
- Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Ravisankar Rajarethinam
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore, Singapore
| | - Choon Seng Chong
- Department of Surgery, National University Hospital, Singapore, Singapore
| | - Jiong-Wei Wang
- Cardiovascular Research Institute, National University Heart Centre, Singapore, Singapore.,Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Nanomedicine Translational Research Programme, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Pui Lai Rachel Ee
- Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Weiqiang Loke
- Faculty of Dentistry, National University of Singapore, Singapore, Singapore
| | - Benjamin C K Tee
- Institute for Health Innovation and Technology, National University of Singapore, Singapore, Singapore.,The N.1 Institute for Health, National University of Singapore, Singapore, Singapore.,Department of Materials Science and Engineering, National University of Singapore, Singapore, Singapore
| | - Jianyong Ouyang
- Department of Materials Science and Engineering, National University of Singapore, Singapore, Singapore
| | - Christopher J Charles
- Cardiovascular Research Institute, National University Heart Centre, Singapore, Singapore.,Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Christchurch Heart Institute, Department of Medicine, University of Otago, Christchurch, New Zealand
| | - John S Ho
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore. .,Institute for Health Innovation and Technology, National University of Singapore, Singapore, Singapore. .,The N.1 Institute for Health, National University of Singapore, Singapore, Singapore.
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32
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Elder B, Zou Z, Ghosh S, Silverberg O, Greenwood TE, Demir E, Su VSE, Pak OS, Kong YL. A 3D-Printed Self-Learning Three-Linked-Sphere Robot for Autonomous Confined-Space Navigation. ADVANCED INTELLIGENT SYSTEMS (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 3:2170064. [PMID: 35356413 PMCID: PMC8963778 DOI: 10.1002/aisy.202100039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Reinforcement learning control methods can impart robots with the ability to discover effective behavior, reducing their modeling and sensing requirements, and enabling their ability to adapt to environmental changes. However, it remains challenging for a robot to achieve navigation in confined and dynamic environments, which are characteristic of a broad range of biomedical applications, such as endoscopy with ingestible electronics. Herein, a compact, 3D-printed three-linked-sphere robot synergistically integrated with a reinforcement learning algorithm that can perform adaptable, autonomous crawling in a confined channel is demonstrated. The scalable robot consists of three equally sized spheres that are linearly coupled, in which the extension and contraction in specific sequences dictate its navigation. The ability to achieve bidirectional locomotion across frictional surfaces in open and confined spaces without prior knowledge of the environment is also demonstrated. The synergistic integration of a highly scalable robotic apparatus and the model-free reinforcement learning control strategy can enable autonomous navigation in a broad range of dynamic and confined environments. This capability can enable sensing, imaging, and surgical processes in previously inaccessible confined environments in the human body.
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Affiliation(s)
- Brian Elder
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112, USA
| | - Zonghao Zou
- Department of Mechanical Engineering, Santa Clara University, Santa Clara, CA 95053, USA
| | - Samannoy Ghosh
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112, USA
| | - Oliver Silverberg
- Department of Mechanical Engineering, Santa Clara University, Santa Clara, CA 95053, USA
| | - Taylor E Greenwood
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112, USA
| | - Ebru Demir
- Department of Mechanical Engineering, Santa Clara University, Santa Clara, CA 95053, USA
| | - Vivian Song-En Su
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112, USA
| | - On Shun Pak
- Department of Mechanical Engineering, Santa Clara University, Santa Clara, CA 95053, USA
| | - Yong Lin Kong
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112, USA
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33
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Seoane-Viaño I, Trenfield SJ, Basit AW, Goyanes A. Translating 3D printed pharmaceuticals: From hype to real-world clinical applications. Adv Drug Deliv Rev 2021; 174:553-575. [PMID: 33965461 DOI: 10.1016/j.addr.2021.05.003] [Citation(s) in RCA: 122] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 04/04/2021] [Accepted: 05/04/2021] [Indexed: 12/26/2022]
Abstract
Three-dimensional (3D) printing is a revolutionary technology that is disrupting pharmaceutical development by enabling the production of personalised printlets (3D printed drug products) on demand. By creating small batches of dose flexible medicines, this versatile technology offers significant advantages for clinical practice and drug development, namely the ability to personalise medicines to individual patient needs, as well as expedite drug development timelines within preclinical studies through to first-in-human (FIH) and Phase I/II clinical trials. Despite the widely demonstrated benefits of 3D printing pharmaceuticals, the clinical potential of the technology is yet to be realised. In this timely review, we provide an overview of the latest cutting-edge investigations in 3D printing pharmaceuticals in the pre-clinical and clinical arena and offer a forward-looking approach towards strategies to further aid the translation of 3D printing into the clinic.
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34
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Awad A, Fina F, Goyanes A, Gaisford S, Basit AW. Advances in powder bed fusion 3D printing in drug delivery and healthcare. Adv Drug Deliv Rev 2021; 174:406-424. [PMID: 33951489 DOI: 10.1016/j.addr.2021.04.025] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 04/03/2021] [Accepted: 04/28/2021] [Indexed: 12/17/2022]
Abstract
Powder bed fusion (PBF) is a 3D printing method that selectively consolidates powders into 3D objects using a power source. PBF has various derivatives; selective laser sintering/melting, direct metal laser sintering, electron beam melting and multi-jet fusion. These technologies provide a multitude of benefits that make them well suited for the fabrication of bespoke drug-laden formulations, devices and implants. This includes their superior printing resolution and speed, and ability to produce objects without the need for secondary supports, enabling them to precisely create complex products. Herein, this review article outlines the unique applications of PBF 3D printing, including the main principles underpinning its technologies and highlighting their novel pharmaceutical and biomedical applications. The challenges and shortcomings are also considered, emphasising on their effects on the 3D printed products, whilst providing a forward-thinking view.
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35
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Ivone R, Yang Y, Shen J. Recent Advances in 3D Printing for Parenteral Applications. AAPS J 2021; 23:87. [PMID: 34145513 PMCID: PMC8212901 DOI: 10.1208/s12248-021-00610-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 05/17/2021] [Indexed: 12/25/2022] Open
Abstract
3D printing has emerged as an advanced manufacturing technology in the field of pharmaceutical sciences. Despite much focus on enteral applications, there has been a lack of research focused on potential benefits of 3D printing for parenteral applications such as wound dressings, biomedical devices, and regenerative medicines. 3D printing technologies, including fused deposition modeling, vat polymerization, and powder bed printing, allow for rapid prototyping of personalized medications, capable of producing dosage forms with flexible dimensions based on patient anatomy as well as dosage form properties such as porosity. Considerations such as printing properties and material selection play a key role in determining overall printability of the constructs. These parameters also impact drug release kinetics, and mechanical properties of final printed constructs, which play a role in modulating immune response upon insertion in the body. Despite challenges in sterilization of printed constructs, additional post-printing processing procedures, and lack of regulatory guidance, 3D printing will continue to evolve to meet the needs of developing effective, personalized medicines for parenteral applications.
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Affiliation(s)
- Ryan Ivone
- grid.20431.340000 0004 0416 2242Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, 7 Greenhouse Road, Kingston, Rhode Island 02881 USA
| | - Yan Yang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Jie Shen
- Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, 7 Greenhouse Road, Kingston, Rhode Island, 02881, USA. .,Department of Chemical Engineering, University of Rhode Island, 7 Greenhouse Road, Kingston, Rhode Island, 02881, USA.
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Additive Manufacturing of Sensors for Military Monitoring Applications. Polymers (Basel) 2021; 13:polym13091455. [PMID: 33946226 PMCID: PMC8125590 DOI: 10.3390/polym13091455] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 02/07/2023] Open
Abstract
The US Department of Defense (DoD) realizes the many uses of additive manufacturing (AM) as it has become a common fabrication technique for an extensive range of engineering components in several industrial sectors. 3D Printed (3DP) sensor technology offers high-performance features as a way to track individual warfighters on the battlefield, offering protection from threats such as weaponized toxins, bacteria or virus, with real-time monitoring of physiological events, advanced diagnostics, and connected feedback. Maximum protection of the warfighter gives a distinct advantage over adversaries by providing an enhanced awareness of situational threats on the battle field. There is a need to further explore aspects of AM such as higher printing resolution and efficiency, with faster print times and higher performance, sensitivity and optimized fabrication to ensure that soldiers are more safe and lethal to win our nation's wars and come home safely. A review and comparison of various 3DP techniques for sensor fabrication is presented.
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37
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Oral Drug Delivery: Conventional to Long Acting New-Age Designs. Eur J Pharm Biopharm 2021; 162:23-42. [PMID: 33631319 DOI: 10.1016/j.ejpb.2021.02.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 01/16/2021] [Accepted: 02/14/2021] [Indexed: 12/13/2022]
Abstract
The Oral route of administration forms the heartwood of the ever-growing tree of drug delivery technology. It is one of the most preferred dosage forms among patients and controlled release community. Despite the high patient compliance, the deliveries of anti-cancerous drugs, vaccines, proteins, etc. via the oral route are limited and have recorded a very low bioavailability. The oral administration must overcome the physiological barriers (low solubility, permeation and early degradation) to achieve efficient and sustained delivery. This review aims at highlighting the conventional and modern-age strategies that address some of these physiological barriers. The modern age designs include the 3D printed devices and formulations. The superiority of 3D dosage forms over conventional cargos is summarized with a focus on long-acting designs. The innovations in Pharmaceutical organizations (Lyndra, Assertio and Intec) that have taken giant steps towards commercialization of long-acting vehicles are discussed. The recent advancements made in the arena of oral peptide delivery are also highlighted. The review represents a comprehensive journey from Nano-formulations to micro-fabricated oral implants aiming at specific patient-centric designs.
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Seoane-Viaño I, Gómez-Lado N, Lázare-Iglesias H, García-Otero X, Antúnez-López JR, Ruibal Á, Varela-Correa JJ, Aguiar P, Basit AW, Otero-Espinar FJ, González-Barcia M, Goyanes A, Luzardo-Álvarez A, Fernández-Ferreiro A. 3D Printed Tacrolimus Rectal Formulations Ameliorate Colitis in an Experimental Animal Model of Inflammatory Bowel Disease. Biomedicines 2020; 8:E563. [PMID: 33276641 PMCID: PMC7761558 DOI: 10.3390/biomedicines8120563] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/24/2020] [Accepted: 11/27/2020] [Indexed: 12/11/2022] Open
Abstract
The aim of this study was to fabricate novel self-supporting tacrolimus suppositories using semisolid extrusion 3-dimensional printing (3DP) and to investigate their efficacy in an experimental model of inflammatory bowel disease. Blends of Gelucire 44/14 and coconut oil were employed as lipid excipients to obtain suppository formulations with self-emulsifying properties, which were then tested in a TNBS (2,4,6-trinitrobenzenesulfonic acid) induced rat colitis model. Disease activity was monitored using PET/CT medical imaging; maximum standardized uptake values (SUVmax), a measure of tissue radiotracer accumulation rate, together with body weight changes and histological assessments, were used as inflammatory indices to monitor treatment efficacy. Following tacrolimus treatment, a significant reduction in SUVmax was observed on days 7 and 10 in the rat colon sections compared to non-treated animals. Histological analysis using Nancy index confirmed disease remission. Moreover, statistical analysis showed a positive correlation (R2 = 71.48%) between SUVmax values and weight changes over time. Overall, this study demonstrates the effectiveness of 3D printed tacrolimus suppositories to ameliorate colitis and highlights the utility of non-invasive PET/CT imaging to evaluate new therapies in the preclinical area.
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Affiliation(s)
- Iria Seoane-Viaño
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela (USC), 15782 Santiago de Compostela, Spain; (I.S.-V.); (X.G.-O.); (F.J.O.-E.)
- Paraquasil Group, Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain
| | - Noemí Gómez-Lado
- Nuclear Medicine Department and Molecular Imaging Group, University Clinical Hospital (CHUS) and Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain; (N.G.-L.); (Á.R.); (P.A.)
| | - Héctor Lázare-Iglesias
- Pathology Department, University Clinical Hospital Santiago de Compostela (SERGAS) (CHUS), 15706 Santiago de Compostela, Spain; (H.L.-I.); (J.R.A.-L.)
| | - Xurxo García-Otero
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela (USC), 15782 Santiago de Compostela, Spain; (I.S.-V.); (X.G.-O.); (F.J.O.-E.)
- Nuclear Medicine Department and Molecular Imaging Group, University Clinical Hospital (CHUS) and Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain; (N.G.-L.); (Á.R.); (P.A.)
| | - José Ramón Antúnez-López
- Pathology Department, University Clinical Hospital Santiago de Compostela (SERGAS) (CHUS), 15706 Santiago de Compostela, Spain; (H.L.-I.); (J.R.A.-L.)
| | - Álvaro Ruibal
- Nuclear Medicine Department and Molecular Imaging Group, University Clinical Hospital (CHUS) and Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain; (N.G.-L.); (Á.R.); (P.A.)
- Tejerina Foundation, José Abascal 40, 28003 Madrid, Spain
| | - Juan Jesús Varela-Correa
- Pharmacy Department, University Hospital Ourense (SERGAS), Calle Ramón Puga Noguerol 54, 32005 Ourense, Spain;
| | - Pablo Aguiar
- Nuclear Medicine Department and Molecular Imaging Group, University Clinical Hospital (CHUS) and Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain; (N.G.-L.); (Á.R.); (P.A.)
| | - Abdul W. Basit
- FabRx Ltd., 3 Romney Road, Ashford, Kent TN24 0RW, UK;
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Francisco J. Otero-Espinar
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela (USC), 15782 Santiago de Compostela, Spain; (I.S.-V.); (X.G.-O.); (F.J.O.-E.)
- Paraquasil Group, Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain
| | - Miguel González-Barcia
- Pharmacy Department, University Clinical Hospital Santiago de Compostela (SERGAS) (CHUS), 15706 Santiago de Compostela, Spain;
| | - Alvaro Goyanes
- FabRx Ltd., 3 Romney Road, Ashford, Kent TN24 0RW, UK;
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma Group (GI-1645), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Asteria Luzardo-Álvarez
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela (USC), 15782 Santiago de Compostela, Spain; (I.S.-V.); (X.G.-O.); (F.J.O.-E.)
- Paraquasil Group, Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain
| | - Anxo Fernández-Ferreiro
- Pharmacy Department, University Clinical Hospital Santiago de Compostela (SERGAS) (CHUS), 15706 Santiago de Compostela, Spain;
- Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain
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Robert Langer and Mark Tibbitt answer questions about additive manufacturing. Nat Commun 2020; 11:3994. [PMID: 32807772 PMCID: PMC7431529 DOI: 10.1038/s41467-020-17724-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Robert S. Langer is an Institute Professor at the Massachusetts Institute of Technology. Leading one of the largest biomedical engineering labs in the world his research covers many areas of biotechnology including tissue engineering, drug delivery, biofabrication and the development of medical devices. Mark Tibbitt is an Assistant Professor of Macromolecular Engineering at ETH Zürich. His research focuses on combining polymer engineering, synthetic chemistry, mechanical and bioengineering for biofabrication, drug delivery and mechanobiology applications.
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40
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Al-Dulimi Z, Wallis M, Tan DK, Maniruzzaman M, Nokhodchi A. 3D printing technology as innovative solutions for biomedical applications. Drug Discov Today 2020; 26:360-383. [PMID: 33212234 DOI: 10.1016/j.drudis.2020.11.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/13/2020] [Accepted: 11/11/2020] [Indexed: 12/30/2022]
Abstract
3D printing was once predicted to be the third industrial revolution. Today, the use of 3D printing is found across almost all industries. This article discusses the latest 3D printing applications in the biomedical industry.
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Affiliation(s)
- Zaisam Al-Dulimi
- Arundel Building, Pharmaceutics Research Laboratory, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, UK
| | - Melissa Wallis
- Arundel Building, Pharmaceutics Research Laboratory, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, UK
| | - Deck Khong Tan
- Arundel Building, Pharmaceutics Research Laboratory, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, UK
| | - Mohammed Maniruzzaman
- Pharmaceutical Engineering and 3D Printing (PharmE3D) Lab, Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, University of Texas at Austin, PHR 4.214A, 2409 University Avenue, Stop A1920, Austin, TX 78712, USA.
| | - Ali Nokhodchi
- Arundel Building, Pharmaceutics Research Laboratory, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, UK.
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41
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Heterogeneous optoelectronic characteristics of Si micropillar arrays fabricated by metal-assisted chemical etching. Sci Rep 2020; 10:16349. [PMID: 33004988 PMCID: PMC7530667 DOI: 10.1038/s41598-020-73445-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 09/07/2020] [Indexed: 11/24/2022] Open
Abstract
Recent progress achieved in metal-assisted chemical etching (MACE) has enabled the production of high-quality micropillar arrays for various optoelectronic applications. Si micropillars produced by MACE often show a porous Si/SiOx shell on crystalline pillar cores introduced by local electrochemical reactions. In this paper, we report the distinct optoelectronic characteristics of the porous Si/SiOx shell correlated to their chemical compositions. Local photoluminescent (PL) images obtained with an immersion oil objective lens in confocal microscopy show a red emission peak (≈ 650 nm) along the perimeter of the pillars that is threefold stronger compared to their center. On the basis of our analysis, we find an unexpected PL increase (≈ 540 nm) at the oil/shell interface. We suggest that both PL enhancements are mainly attributed to the porous structures, a similar behavior observed in previous MACE studies. Surface potential maps simultaneously recorded with topography reveal a significantly high surface potential on the sidewalls of MACE-synthesized pillars (+ 0.5 V), which is restored to the level of planar Si control (− 0.5 V) after removing SiOx in hydrofluoric acid. These distinct optoelectronic characteristics of the Si/SiOx shell can be beneficial for various sensor architectures.
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42
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Kirtane AR, Hua T, Hayward A, Bajpayee A, Wahane A, Lopes A, Bensel T, Ma L, Stanczyk FZ, Brooks S, Gwynne D, Wainer J, Collins J, Tamang SM, Langer R, Traverso G. A once-a-month oral contraceptive. Sci Transl Med 2020; 11:11/521/eaay2602. [PMID: 31801885 DOI: 10.1126/scitranslmed.aay2602] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 10/25/2019] [Indexed: 12/12/2022]
Abstract
Poor patient adherence to oral contraceptives is the predominant cause of failure of these therapies, leading to unplanned pregnancies that can negatively affect female health worldwide. To improve patient adherence, we developed an oral contraceptive that is administered once a month. Here, we describe the design and report in vivo characterization of a levonorgestrel-releasing gastric resident dosage form in pigs.
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Affiliation(s)
- Ameya R Kirtane
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Tiffany Hua
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Alison Hayward
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Ambika Bajpayee
- Departments of Bioengineering and Mechanical Engineering, Northeastern University, Boston, MA 02115, USA
| | - Aniket Wahane
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Aaron Lopes
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Taylor Bensel
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Lihong Ma
- Department of Obstetrics and Gynecology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Frank Z Stanczyk
- Department of Obstetrics and Gynecology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Sierra Brooks
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Declan Gwynne
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Jacob Wainer
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Joy Collins
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Siddartha M Tamang
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Robert Langer
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. .,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Media Lab, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Giovanni Traverso
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. .,Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
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43
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Ashton MD, Appen IC, Firlak M, Stanhope NE, Schmidt CE, Eisenstadt WR, Hur B, Hardy JG. Wirelessly triggered bioactive molecule delivery from degradable electroactive polymer films. POLYM INT 2020. [DOI: 10.1002/pi.6089] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Mark D Ashton
- Department of Chemistry Lancaster University Lancaster UK
| | - Isabel C Appen
- Department of Chemistry Lancaster University Lancaster UK
| | - Melike Firlak
- Department of Chemistry Lancaster University Lancaster UK
- Department of Chemistry Gebze Technical University Kocaeli Turkey
| | | | - Christine E Schmidt
- J. Crayton Pruitt Family Department of Biomedical Engineering University of Florida, Biomedical Sciences Building JG‐53 Gainesville FL USA
| | - William R Eisenstadt
- Department of Electrical and Computer Engineering University of Florida, New Engineering Building Gainesville FL USA
| | - Byul Hur
- Department of Engineering Technology and Industrial Distribution Texas A&M University College Station TX USA
| | - John G Hardy
- Department of Chemistry Lancaster University Lancaster UK
- J. Crayton Pruitt Family Department of Biomedical Engineering University of Florida, Biomedical Sciences Building JG‐53 Gainesville FL USA
- Materials Science Institute, Lancaster University Lancaster UK
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44
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Verma M, Chu JN, Salama JAF, Faiz MT, Eweje F, Gwynne D, Lopes A, Hess K, Soares V, Steiger C, McManus R, Koeppen R, Hua T, Hayward A, Collins J, Tamang SM, Ishida K, Miller JB, Katz S, Slocum AH, Sulkowski MS, Thomas DL, Langer R, Traverso G. Development of a long-acting direct-acting antiviral system for hepatitis C virus treatment in swine. Proc Natl Acad Sci U S A 2020; 117:11987-11994. [PMID: 32424082 PMCID: PMC7275718 DOI: 10.1073/pnas.2004746117] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Chronic hepatitis C virus (HCV) infection is a leading cause of cirrhosis worldwide and kills more Americans than 59 other infections, including HIV and tuberculosis, combined. While direct-acting antiviral (DAA) treatments are effective, limited uptake of therapy, particularly in high-risk groups, remains a substantial barrier to eliminating HCV. We developed a long-acting DAA system (LA-DAAS) capable of prolonged dosing and explored its cost-effectiveness. We designed a retrievable coil-shaped LA-DAAS compatible with nasogastric tube administration and the capacity to encapsulate and release gram levels of drugs while resident in the stomach. We formulated DAAs in drug-polymer pills and studied the release kinetics for 1 mo in vitro and in vivo in a swine model. The LA-DAAS was equipped with ethanol and temperature sensors linked via Bluetooth to a phone application to provide patient engagement. We then performed a cost-effectiveness analysis comparing LA-DAAS to DAA alone in various patient groups, including people who inject drugs. Tunable release kinetics of DAAs was enabled for 1 mo with drug-polymer pills in vitro, and the LA-DAAS safely and successfully provided at least month-long release of sofosbuvir in vivo. Temperature and alcohol sensors could interface with external sources for at least 1 mo. The LA-DAAS was cost-effective compared to DAA therapy alone in all groups considered (base case incremental cost-effectiveness ratio $39,800). We believe that the LA-DAA system can provide a cost-effective and patient-centric method for HCV treatment, including in high-risk populations who are currently undertreated.
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Affiliation(s)
- Malvika Verma
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Tata Center for Technology and Design, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Jacqueline N Chu
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Division of Gastroenterology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114
| | - John A F Salama
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Mohammed T Faiz
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Feyisope Eweje
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
- Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115
| | - Declan Gwynne
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Aaron Lopes
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Kaitlyn Hess
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Vance Soares
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Christoph Steiger
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Rebecca McManus
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Ryan Koeppen
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Tiffany Hua
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Alison Hayward
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Joy Collins
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Siddartha M Tamang
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Keiko Ishida
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Jonathan B Miller
- Sloan School of Management, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Stephanie Katz
- Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, MD 21205
| | - Alexander H Slocum
- Tata Center for Technology and Design, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Mark S Sulkowski
- Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, MD 21205
| | - David L Thomas
- Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, MD 21205
| | - Robert Langer
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139;
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Tata Center for Technology and Design, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Giovanni Traverso
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139;
- Tata Center for Technology and Design, Massachusetts Institute of Technology, Cambridge, MA 02139
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
- Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115
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45
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Beardslee LA, Banis GE, Chu S, Liu S, Chapin AA, Stine JM, Pasricha PJ, Ghodssi R. Ingestible Sensors and Sensing Systems for Minimally Invasive Diagnosis and Monitoring: The Next Frontier in Minimally Invasive Screening. ACS Sens 2020; 5:891-910. [PMID: 32157868 DOI: 10.1021/acssensors.9b02263] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Ingestible electronic systems that are capable of embedded sensing, particularly within the gastrointestinal (GI) tract and its accessory organs, have the potential to screen for diseases that are difficult if not impossible to detect at an early stage using other means. Furthermore, these devices have the potential to (1) reduce labor and facility costs for a variety of procedures, (2) promote research for discovering new biomarker targets for associated pathologies, (3) promote the development of autonomous or semiautonomous diagnostic aids for consumers, and (4) provide a foundation for epithelially targeted therapeutic interventions. These technological advances have the potential to make disease surveillance and treatment far more effective for a variety of conditions, allowing patients to lead longer and more productive lives. This review will examine the conventional techniques, as well as ingestible sensors and sensing systems that are currently under development for use in disease screening and diagnosis for GI disorders. Design considerations, fabrication, and applications will be discussed.
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Affiliation(s)
- Luke A. Beardslee
- Institute for Systems Research, University of Maryland, College Park, Maryland 20742, United States
| | - George E. Banis
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland 20742, United States
| | - Sangwook Chu
- Institute for Systems Research, University of Maryland, College Park, Maryland 20742, United States
| | - Sanwei Liu
- Institute for Systems Research, University of Maryland, College Park, Maryland 20742, United States
| | - Ashley A. Chapin
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland 20742, United States
| | - Justin M. Stine
- Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Pankaj Jay Pasricha
- Department of Medicine, Johns Hopkins University, Baltimore, Maryland 21205, United States
| | - Reza Ghodssi
- Institute for Systems Research, University of Maryland, College Park, Maryland 20742, United States
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland 20742, United States
- Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20742, United States
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Hales S, Tokita E, Neupane R, Ghosh U, Elder B, Wirthlin D, Kong YL. 3D printed nanomaterial-based electronic, biomedical, and bioelectronic devices. NANOTECHNOLOGY 2020; 31:172001. [PMID: 31805540 DOI: 10.1088/1361-6528/ab5f29] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The ability to seamlessly integrate functional materials into three-dimensional (3D) constructs has been of significant interest, as it can enable the creation of multifunctional devices. Such integration can be achieved with a multiscale, multi-material 3D printing strategy. This technology has enabled the creation of unique devices such as personalized tissue regenerative scaffolds, biomedical implants, 3D electronic devices, and bionic constructs which are challenging to realize with conventional manufacturing processes. In particular, the incorporation of nanomaterials into 3D printed devices can endow a wide range of constructs with tailorable mechanical, chemical, and electrical functionalities. This review highlights the advances and unique possibilities in the fabrication of novel electronic, biomedical, and bioelectronic devices that are realized by the synergistic integration of nanomaterials with 3D printing technologies.
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Affiliation(s)
- Samuel Hales
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112, United States of America
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Elder B, Neupane R, Tokita E, Ghosh U, Hales S, Kong YL. Nanomaterial Patterning in 3D Printing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907142. [PMID: 32129917 DOI: 10.1002/adma.201907142] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/18/2019] [Indexed: 05/17/2023]
Abstract
The synergistic integration of nanomaterials with 3D printing technologies can enable the creation of architecture and devices with an unprecedented level of functional integration. In particular, a multiscale 3D printing approach can seamlessly interweave nanomaterials with diverse classes of materials to impart, program, or modulate a wide range of functional properties in an otherwise passive 3D printed object. However, achieving such multiscale integration is challenging as it requires the ability to pattern, organize, or assemble nanomaterials in a 3D printing process. This review highlights the latest advances in the integration of nanomaterials with 3D printing, achieved by leveraging mechanical, electrical, magnetic, optical, or thermal phenomena. Ultimately, it is envisioned that such approaches can enable the creation of multifunctional constructs and devices that cannot be fabricated with conventional manufacturing approaches.
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Affiliation(s)
- Brian Elder
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT, 84112, USA
| | - Rajan Neupane
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT, 84112, USA
| | - Eric Tokita
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT, 84112, USA
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, 84112, USA
| | - Udayan Ghosh
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT, 84112, USA
| | - Samuel Hales
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT, 84112, USA
| | - Yong Lin Kong
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT, 84112, USA
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Raman R, Hua T, Gwynne D, Collins J, Tamang S, Zhou J, Esfandiary T, Soares V, Pajovic S, Hayward A, Langer R, Traverso G. Light-degradable hydrogels as dynamic triggers for gastrointestinal applications. SCIENCE ADVANCES 2020; 6:eaay0065. [PMID: 32010768 PMCID: PMC6968934 DOI: 10.1126/sciadv.aay0065] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 11/14/2019] [Indexed: 05/21/2023]
Abstract
Triggerable materials capable of being degraded by selective stimuli stand to transform our capacity to precisely control biomedical device activity and performance while reducing the need for invasive interventions. Here, we describe the development of a modular and tunable light-triggerable hydrogel system capable of interfacing with implantable devices. We apply these materials to two applications in the gastrointestinal (GI) tract: a bariatric balloon and an esophageal stent. We demonstrate biocompatibility and on-demand triggering of the material in vitro, ex vivo, and in vivo. Moreover, we characterize performance of the system in a porcine large animal model with an accompanying ingestible LED. Light-triggerable hydrogels have the potential to be applied broadly throughout the GI tract and other anatomic areas. By demonstrating the first use of light-degradable hydrogels in vivo, we provide biomedical engineers and clinicians with a previously unavailable, safe, dynamically deliverable, and precise tool to design dynamically actuated implantable devices.
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Affiliation(s)
- Ritu Raman
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Tiffany Hua
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Declan Gwynne
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Joy Collins
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Siddartha Tamang
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Jianlin Zhou
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Tina Esfandiary
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Vance Soares
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Simo Pajovic
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Alison Hayward
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Robert Langer
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Giovanni Traverso
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Division of Gastroenterology, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
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Affiliation(s)
- Jihong Min
- Andrew and Peggy Cherng Department of Medical EngineeringDivision of Engineering and Applied ScienceCalifornia Institute of Technology Pasadena CA 91125 USA
| | - Yiran Yang
- Andrew and Peggy Cherng Department of Medical EngineeringDivision of Engineering and Applied ScienceCalifornia Institute of Technology Pasadena CA 91125 USA
| | - Zhiguang Wu
- Andrew and Peggy Cherng Department of Medical EngineeringDivision of Engineering and Applied ScienceCalifornia Institute of Technology Pasadena CA 91125 USA
| | - Wei Gao
- Andrew and Peggy Cherng Department of Medical EngineeringDivision of Engineering and Applied ScienceCalifornia Institute of Technology Pasadena CA 91125 USA
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Schneider F, Koziolek M, Weitschies W. In Vitro and In Vivo Test Methods for the Evaluation of Gastroretentive Dosage Forms. Pharmaceutics 2019; 11:E416. [PMID: 31426417 PMCID: PMC6723944 DOI: 10.3390/pharmaceutics11080416] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 08/07/2019] [Accepted: 08/12/2019] [Indexed: 12/16/2022] Open
Abstract
More than 50 years ago, the first concepts for gastroretentive drug delivery systems were developed. Despite extensive research in this field, there is no single formulation concept for which reliable gastroretention has been demonstrated under different prandial conditions. Thus, gastroretention remains the holy grail of oral drug delivery. One of the major reasons for the various setbacks in this field is the lack of predictive in vitro and in vivo test methods used during preclinical development. In most cases, human gastrointestinal physiology is not properly considered, which leads to the application of inappropriate in vitro and animal models. Moreover, conditions in the stomach are often not fully understood. Important aspects such as the kinetics of fluid volumes, gastric pH or mechanical stresses have to be considered in a realistic manner, otherwise, the gastroretentive potential as well as drug release of novel formulations cannot be assessed correctly in preclinical studies. This review, therefore, highlights the most important aspects of human gastrointestinal physiology and discusses their potential implications for the evaluation of gastroretentive drug delivery systems.
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Affiliation(s)
- Felix Schneider
- Department of Biopharmaceutics and Pharmaceutical Technology, Institute of Pharmacy, University of Greifswald, 17489 Greifswald, Germany
| | - Mirko Koziolek
- Department of Biopharmaceutics and Pharmaceutical Technology, Institute of Pharmacy, University of Greifswald, 17489 Greifswald, Germany
| | - Werner Weitschies
- Department of Biopharmaceutics and Pharmaceutical Technology, Institute of Pharmacy, University of Greifswald, 17489 Greifswald, Germany.
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