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Wang Y, Boero G, Zhang X, Brugger J. Nanopore Generation in Biodegradable Silk/Magnetic Nanoparticle Membranes by an External Magnetic Field for Implantable Drug Delivery. ACS APPLIED MATERIALS & INTERFACES 2022; 14:40418-40426. [PMID: 36036484 PMCID: PMC9460430 DOI: 10.1021/acsami.2c10603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 08/14/2022] [Indexed: 06/15/2023]
Abstract
Implantable devices for localized and controlled drug release are important, e.g., for therapies of cancer and chronic pain. However, most of the existing active implants are limited by the usage of nonbiodegradable materials; thus, surgery is needed to extract them after the treatment, which leads to secondary damage. Here, we show a fully biodegradable composite membrane made from silk fibroin and magnetic nanoparticles (MNPs). The membrane porosity can be remotely modified by an alternating magnetic field, which opens nanopores by local heating of MNPs in the composite allowing a liquid to diffuse through them. The stability of the silk membrane in water can be prolonged up to several months by increasing its β-sheet content through ethanol annealing. We present the following original findings. (a) Nanopores can be generated inside the silk/MNP composite membrane by exposing it to an external alternating magnetic field. (b) A longer exposure time results in more nanopore sites. (c) The controllable release of rhodamine B dye is achieved by tuning the period of exposure to the magnetic field. The obtained results demonstrate the suitability of the investigated silk/MNP composite membrane as a potential functional material for implantable drug delivery.
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Affiliation(s)
- Ya Wang
- Food
Science and Technology Program, Beijing
Normal University-Hong Kong Baptist University United International
College, 519087 Zhuhai, China
- Microsystems
Laboratory, École Polytechnique Fédérale
de Lausanne, 1015 Lausanne, Switzerland
| | - Giovanni Boero
- Microsystems
Laboratory, École Polytechnique Fédérale
de Lausanne, 1015 Lausanne, Switzerland
| | - Xiaosheng Zhang
- School
of Electronic Science and Engineering, University
of Electronic Science and Technology of China, 611731 Chengdu, China
| | - Juergen Brugger
- Microsystems
Laboratory, École Polytechnique Fédérale
de Lausanne, 1015 Lausanne, Switzerland
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2
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Verma G, Sheshkar N, Pandey C, Gupta A. Recent trends of silicon elastomer-based nanocomposites and their sensing applications. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03044-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Jeroish ZE, Bhuvaneshwari KS, Samsuri F, Narayanamurthy V. Microheater: material, design, fabrication, temperature control, and applications-a role in COVID-19. Biomed Microdevices 2021; 24:3. [PMID: 34860299 PMCID: PMC8641292 DOI: 10.1007/s10544-021-00595-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/29/2021] [Indexed: 11/28/2022]
Abstract
Heating plays a vital role in science, engineering, mining, and space, where heating can be achieved via electrical, induction, infrared, or microwave radiation. For fast switching and continuous applications, hotplate or Peltier elements can be employed. However, due to bulkiness, they are ineffective for portable applications or operation at remote locations. Miniaturization of heaters reduces power consumption and bulkiness, enhances the thermal response, and integrates with several sensors or microfluidic chips. The microheater has a thickness of ~ 100 nm to ~ 100 μm and offers a temperature range up to 1900℃ with precise control. In recent years, due to the escalating demand for flexible electronics, thin-film microheaters have emerged as an imperative research area. This review provides an overview of recent advancements in microheater as well as analyses different microheater designs, materials, fabrication, and temperature control. In addition, the applications of microheaters in gas sensing, biological, and electrical and mechanical sectors are emphasized. Moreover, the maximum temperature, voltage, power consumption, response time, and heating rate of each microheater are tabulated. Finally, we addressed the specific key considerations for designing and fabricating a microheater as well as the importance of microheater integration in COVID-19 diagnostic kits. This review thereby provides general guidelines to researchers to integrate microheater in micro-electromechanical systems (MEMS), which may pave the way for developing rapid and large-scale SARS-CoV-2 diagnostic kits in resource-constrained clinical or home-based environments.
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Affiliation(s)
- Z E Jeroish
- College of Engineering, Universiti Malaysia Pahang, 26300, Gambang, Pahang, Malaysia
| | - K S Bhuvaneshwari
- Faculty of Electronics and Computer Engineering, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia
| | - Fahmi Samsuri
- College of Engineering, Universiti Malaysia Pahang, 26300, Gambang, Pahang, Malaysia.
| | - Vigneswaran Narayanamurthy
- Fakulti Teknologi Kejuruteraan Elektrik Dan Elektronik, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia.
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Liu W, Yue F, Lee LP. Integrated Point-of-Care Molecular Diagnostic Devices for Infectious Diseases. Acc Chem Res 2021; 54:4107-4119. [PMID: 34699183 DOI: 10.1021/acs.accounts.1c00385] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The global outbreaks of deadly infectious diseases caused by pathogenic microorganisms have threatened public health worldwide and significantly motivated scientists to satisfy an urgent need for a rapid and accurate detection of pathogens. Traditionally, the culture-based technique is considered as the gold standard for pathogen detection, yet it has a long turnaround time due to the overnight culturing and pathogen isolation. Alternatively, nucleic acid amplification tests provide a relatively shorter turnaround time to identify whether pathogens exist in individuals with high sensitivity and high specificity. In most cases, nucleic acid amplification tests undergo three steps: sample preparation, nucleic acid amplification, and signal transduction. Despite the explosive advancement in nucleic acid amplification and signal transduction technologies, the complex and labor-intensive sample preparation steps remain a bottleneck to create a transformative integrated point-of-care (POC) molecular diagnostic device. Researchers have attempted to simplify and integrate the sample preparations for nucleic acid-based molecular diagnostic devices with innovative progress in integration strategies, engineered materials, reagent storages, and fluid actuation. Therefore, understanding the know-how and obtaining truthful knowledge of existing integrated POC molecular diagnostic devices comprising sample preparations, nucleic acid amplification, and signal transduction can generate innovative solutions to achieve personalized precision medicine and improve global health.In this Account, we discuss the challenges of automated sample preparation solutions integrated with nucleic acid amplification and signal transduction for rapid and precise home diagnostics. Blood, nasal swab, saliva, urine, and stool are emphasized as the most commonly used clinical samples for integrated POC molecular diagnostics of infectious diseases. Even though these five types of samples possess relatively correlated biomarkers due to the human body's circulatory system, each shows unique properties and exclusive advantages for molecular diagnostics in specific situations, which are included in this Account. We examine different integrated POC devices for sample preparation, which includes pathogen isolation and enrichment from the crude sample and nucleic acid purification from isolated pathogens. We present the promising on-chip integration approaches for nucleic acid amplification. We also investigate the on-chip integration methods for reagent storage, which is crucial to simplify the manual operation for end-users. Finally, we present several integrated POC molecular diagnostic devices for infectious diseases. The integrated sample preparation and nucleic acid amplification approach reviewed here can potentially impact the next generation of POC molecular home diagnostic chips, which will significantly impact public health, emergency medicine, and global biosecurity.
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Affiliation(s)
- Wenpeng Liu
- Renal Division and Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston 02115, Massachusetts, United States
| | - Fei Yue
- Renal Division and Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston 02115, Massachusetts, United States
| | - Luke P. Lee
- Renal Division and Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston 02115, Massachusetts, United States
- Department of Bioengineering, Department of Electrical Engineering and Computer Science, University of California at Berkeley, Berkeley 94720, California, United States
- Institute of Quantum Biophysics, Department of Biophysics, Sungkyunkwan University, Suwon 16419, Korea
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Hooda MK, Yadav CS, Samal D. Electronic and topological properties of group-10 transition metal dichalcogenides. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:103001. [PMID: 33570047 DOI: 10.1088/1361-648x/abd0c2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The group 10 transition metal dichalcogenides (TMDs) (MX 2: M = Ni, Pd, Pt; X = S, Se, Te) have attracted much attention in the last few decades because of observation of exotic phases and phenomena such as superconductivity (SC), topological surface states (TSSs), type II Dirac fermions, helical spin texture, Rashba effect, 3D Dirac plasmons, metal-insulator transitions, charge density waves (CDW) etc. In this review, we cover the experimental and theoretical progress on the physical phenomena influenced by the strong electron-electron correlation of the group-10 TMDs from the past to the present. We have especially emphasized on the SC and topological phases in the bulk as well as in atomically thin materials.
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Affiliation(s)
- M K Hooda
- Institute of Physics, Bhubaneswar, Bhubaneswar-751005, India
| | - C S Yadav
- School of Basic Sciences, Indian Institute of Technology Mandi, Mandi-175005 (HP), India
| | - D Samal
- Institute of Physics, Bhubaneswar, Bhubaneswar-751005, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai 400085, India
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Lee SH, Park SM, Kim BN, Kwon OS, Rho WY, Jun BH. Emerging ultrafast nucleic acid amplification technologies for next-generation molecular diagnostics. Biosens Bioelectron 2019; 141:111448. [PMID: 31252258 DOI: 10.1016/j.bios.2019.111448] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 05/31/2019] [Accepted: 06/17/2019] [Indexed: 02/07/2023]
Abstract
Over the last decade, nucleic acid amplification tests (NAATs) including polymerase chain reaction (PCR) were an indispensable methodology for diagnosing cancers, viral and bacterial infections owing to their high sensitivity and specificity. Because the NAATs can recognize and discriminate even a few copies of nucleic acid (NA) and species-specific NA sequences, NAATs have become the gold standard in a wide range of applications. However, limitations of NAAT approaches have recently become more apparent by reason of their lengthy run time, large reaction volume, and complex protocol. To meet the current demands of clinicians and biomedical researchers, new NAATs have developed to achieve ultrafast sample-to-answer protocols for the point-of-care testing (POCT). In this review, ultrafast NA-POCT platforms are discussed, outlining their NA amplification principles as well as delineating recent advances in ultrafast NAAT applications. The main focus is to provide an overview of NA-POCT platforms in regard to sample preparation of NA, NA amplification, NA detection process, interpretation of the analysis, and evaluation of the platform design. Increasing importance will be given to innovative, ultrafast amplification methods and tools which incorporate artificial intelligence (AI)-associated data analysis processes and mobile-healthcare networks. The future prospects of NA POCT platforms are promising as they allow absolute quantitation of NA in individuals which is essential to precision medicine.
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Affiliation(s)
- Sang Hun Lee
- Department of Bioengineering, University of California Berkeley, CA, USA
| | | | - Brian N Kim
- Department of Electrical and Computer Engineering, University of Central Florida, FL, USA
| | - Oh Seok Kwon
- Infectious Disease Research Center, Korea Research Institute of Bioscience & Biotechnology, Daejeon, South Korea
| | - Won-Yep Rho
- School of International Engineering and Science, Chonbuk National University, Jeonju, South Korea
| | - Bong-Hyun Jun
- Department of Bioscience and Biotechnology, Konkuk University, South Korea.
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Mishra SR, Dickey MD, Velev OD, Tracy JB. Selective and directional actuation of elastomer films using chained magnetic nanoparticles. NANOSCALE 2016; 8:1309-1313. [PMID: 26677134 DOI: 10.1039/c5nr07410j] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report selective and directional actuation of elastomer films utilizing magnetic anisotropy introduced by chains of Fe3O4 magnetic nanoparticles (MNPs). Under uniform magnetic fields or field gradients, dipolar interactions between the MNPs favor magnetization along the chain direction and cause selective lifting. This mechanism is described using a simple model.
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Affiliation(s)
- Sumeet R Mishra
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, USA.
| | - Michael D Dickey
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, USA
| | - Orlin D Velev
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, USA
| | - Joseph B Tracy
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, USA.
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Jang LW, Lee J, Razu ME, Jensen EC, Kim J. Fabrication of PDMS Nanocomposite Materials and Nanostructures for Biomedical Nanosystems. IEEE Trans Nanobioscience 2015; 14:841-9. [DOI: 10.1109/tnb.2015.2509602] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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9
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Kan-Dapaah K, Rahbar N, Tahlil A, Crosson D, Yao N, Soboyejo W. Mechanical and hyperthermic properties of magnetic nanocomposites for biomedical applications. J Mech Behav Biomed Mater 2015; 49:118-28. [DOI: 10.1016/j.jmbbm.2015.04.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Revised: 04/13/2015] [Accepted: 04/20/2015] [Indexed: 10/23/2022]
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Higashi T, Minegishi H, Echigo A, Nagaoka Y, Fukuda T, Usami R, Maekawa T, Hanajiri T. Nanomaterial-assisted PCR based on thermal generation from magnetic nanoparticles under high-frequency AC magnetic fields. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2015.06.070] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Higashi T, Nagaoka Y, Minegishi H, Echigo A, Usami R, Maekawa T, Hanajiri T. Regulation of PCR efficiency with magnetic nanoparticles in a rotating magnetic field. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.03.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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