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Zhan YL, Wen KC, Li ZA, Sun P, Li FQ. Dielectric and Magnetic Composites of Fe 3O 4@APNs for Superior Microwave Thermal Effect. ACS Biomater Sci Eng 2024; 10:791-799. [PMID: 38153906 DOI: 10.1021/acsbiomaterials.3c01341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2023]
Abstract
As for the deep tissue infections of chronic osteomyelitis, antibiotics are hard to deliver into the infected bone tissue, which makes it difficult to be cured completely in clinic. Microwave has strong penetration, and the medium can produce a good bactericidal effect through the microwave thermal effect (MTE). Here, a new microwave sensitizer (Fe3O4@APNs) was prepared and evaluated. Black phosphorus nanosheets modified with phytic acid dodecasodium (APNs) were fabricated by a liquid-phase exfoliation method that exhibited good water oxygen stability. A complex with Fe3O4 compound and APNs (Fe3O4@APNs) was formed by an ultrasonic mixing process, which showed excellent MTE (quickly increased to 53.5 °C in 5 min at 2.45 GHz, 10 W/cm2) via dielectric versus magnetic loss (reflect loss value of -5.94 dB at 2.45 GHz). The Fe3O4@APNs microwave sensitizer developed in this study has an outstanding in vitro antibacterial effect and might show promise for the treatment of chronic osteomyelitis enabled by local tissue heating via the MTE.
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Affiliation(s)
- Yan-Lei Zhan
- Department of Orthopaedics/Pharmaceutics, Shanghai Eighth People's Hospital, Shanghai 200235, China
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Kai-Chao Wen
- Department of Orthopaedics/Pharmaceutics, Shanghai Eighth People's Hospital, Shanghai 200235, China
| | - Zheng-An Li
- Department of Orthopaedics/Pharmaceutics, Shanghai Eighth People's Hospital, Shanghai 200235, China
| | - Ping Sun
- Department of Orthopaedics/Pharmaceutics, Shanghai Eighth People's Hospital, Shanghai 200235, China
| | - Feng-Qian Li
- Department of Orthopaedics/Pharmaceutics, Shanghai Eighth People's Hospital, Shanghai 200235, China
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2
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Uppot RN, Wah TM, Mueller PR. Percutaneous treatment of renal tumours. J Med Imaging Radiat Oncol 2023; 67:853-861. [PMID: 37417722 DOI: 10.1111/1754-9485.13553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 06/15/2023] [Indexed: 07/08/2023]
Abstract
Image-guided ablation is an accepted treatment option in the management of renal cell carcinoma. Percutaneous renal ablation offers the possibility of minimally invasive treatment while attempting to preserve renal function. Over the past several years there have been advances in tools and techniques that have improved procedure safety and patient outcomes. This article provides an updated comprehensive review of percutaneous ablation in the management of renal cell carcinoma.
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Affiliation(s)
- Raul N Uppot
- Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Radiology, Harvard Medical School, Boston, Massachusetts, USA
| | - Tze Min Wah
- Department of Interventional Radiology, Faculty of Medicine, Leeds Institute of Medical Research, University of Leeds, Leeds, UK
- Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Peter R Mueller
- Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Radiology, Harvard Medical School, Boston, Massachusetts, USA
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3
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Szczepankowska J, Khachatryan G, Khachatryan K, Krystyjan M. Carbon Dots-Types, Obtaining and Application in Biotechnology and Food Technology. Int J Mol Sci 2023; 24:14984. [PMID: 37834430 PMCID: PMC10573487 DOI: 10.3390/ijms241914984] [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: 09/03/2023] [Revised: 09/28/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023] Open
Abstract
Materials with a "nano" structure are increasingly used in medicine and biotechnology as drug delivery systems, bioimaging agents or biosensors in the monitoring of toxic substances, heavy metals and environmental variations. Furthermore, in the food industry, they have found applications as detectors of food adulteration, microbial contamination and even in packaging for monitoring product freshness. Carbon dots (CDs) as materials with broad as well as unprecedented possibilities could revolutionize the economy, if only their synthesis was based on low-cost natural sources. So far, a number of studies point to the positive possibilities of obtaining CDs from natural sources. This review describes the types of carbon dots and the most important methods of obtaining them. It also focuses on presenting the potential application of carbon dots in biotechnology and food technology.
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Affiliation(s)
- Joanna Szczepankowska
- Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Al. Mickiewicza 21, 31-120 Krakow, Poland;
| | - Gohar Khachatryan
- Faculty of Food Technology, University of Agriculture in Krakow, Al. Mickiewicza 21, 31-120 Krakow, Poland; (G.K.); (K.K.)
| | - Karen Khachatryan
- Faculty of Food Technology, University of Agriculture in Krakow, Al. Mickiewicza 21, 31-120 Krakow, Poland; (G.K.); (K.K.)
| | - Magdalena Krystyjan
- Faculty of Food Technology, University of Agriculture in Krakow, Al. Mickiewicza 21, 31-120 Krakow, Poland; (G.K.); (K.K.)
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4
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Li Q, Tang Z, Zhang Y, Yuan T, Yuan B, Du L, Jin Y. Application of low-intensity ultrasound by opening blood-brain barrier for enhanced brain-targeted drug delivery. Int J Pharm 2023; 642:123191. [PMID: 37391108 DOI: 10.1016/j.ijpharm.2023.123191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 06/21/2023] [Accepted: 06/28/2023] [Indexed: 07/02/2023]
Abstract
Brain-targeted drug delivery has been a research hotspot, and substantial amount of related studies were already translated into standard therapy and put into clinical use. However, low effective rate retains a huge challenge for brain disease. Because, the blood-brain barrier (BBB) protects brain from pathogenic molecules and tightly controls the process of molecular transportation, which gives rise to poor-liposoluble drugs or molecules with high molecular weight cannot permeate the barrier to exert treating effect. There is an ongoing process to dig out more methods for efficient brain-targeted drug delivery. Besides modified chemical methods such as prodrugs design and brain-targeted nanotechnology, physical methods as a novel initiative could enhance the treatment effect for brain disease. In our study, the influence of low-intensity ultrasound on transient opening BBB and the related applications were explored. A medical ultrasound therapeutic device (1 MHz) was used on heads of mice at different intensities and for different treating time. Evans blue was used as a model to exhibit the permeability of the BBB after subcutaneous injection. Three types of intensities (0.6, 0.8, and 1.0 W/cm2) and duration times (1, 3, and 5 min) of ultrasound were respectively investigated. It was found that the combinations of 0.6 W/cm2/1 min, 0.6 W/cm2/3 min, 0.6 W/cm2/5 min, 0.8 W/cm2/1 min, and 1.0 W/cm2/1 min could open the BBB sufficiently with significant Evans blue staining in the brain. Brain pathological analysis showed structural change on moderate degree was found on cerebral cortex after ultrasound and could recovered rapidly. There are no obvious changes in the behavior of mice after ultrasound processing. More importantly, the BBB recovered quickly at 12 h after ultrasound application with complete BBB structure and unbroken tight junction, suggesting that ultrasound was safe to apply for brain-targeted drug delivery. Proper use of local ultrasound on the brain is a promising technique to open the BBB and enhance brain-targeted delivery.
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Affiliation(s)
- Qian Li
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China; Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Ziyan Tang
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Yuanyuan Zhang
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China; Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Tianyu Yuan
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China; College of Pharmacy, Henan University, Kaifeng 475004, China
| | - Bochuan Yuan
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Lina Du
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China; Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China; College of Pharmacy, Henan University, Kaifeng 475004, China.
| | - Yiguang Jin
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China; College of Pharmacy, Henan University, Kaifeng 475004, China.
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5
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Manga S, Muthavarapu N, Redij R, Baraskar B, Kaur A, Gaddam S, Gopalakrishnan K, Shinde R, Rajagopal A, Samaddar P, Damani DN, Shivaram S, Dey S, Mitra D, Roy S, Kulkarni K, Arunachalam SP. Estimation of Physiologic Pressures: Invasive and Non-Invasive Techniques, AI Models, and Future Perspectives. SENSORS (BASEL, SWITZERLAND) 2023; 23:5744. [PMID: 37420919 DOI: 10.3390/s23125744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 05/25/2023] [Accepted: 06/12/2023] [Indexed: 07/09/2023]
Abstract
The measurement of physiologic pressure helps diagnose and prevent associated health complications. From typical conventional methods to more complicated modalities, such as the estimation of intracranial pressures, numerous invasive and noninvasive tools that provide us with insight into daily physiology and aid in understanding pathology are within our grasp. Currently, our standards for estimating vital pressures, including continuous BP measurements, pulmonary capillary wedge pressures, and hepatic portal gradients, involve the use of invasive modalities. As an emerging field in medical technology, artificial intelligence (AI) has been incorporated into analyzing and predicting patterns of physiologic pressures. AI has been used to construct models that have clinical applicability both in hospital settings and at-home settings for ease of use for patients. Studies applying AI to each of these compartmental pressures were searched and shortlisted for thorough assessment and review. There are several AI-based innovations in noninvasive blood pressure estimation based on imaging, auscultation, oscillometry and wearable technology employing biosignals. The purpose of this review is to provide an in-depth assessment of the involved physiologies, prevailing methodologies and emerging technologies incorporating AI in clinical practice for each type of compartmental pressure measurement. We also bring to the forefront AI-based noninvasive estimation techniques for physiologic pressure based on microwave systems that have promising potential for clinical practice.
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Affiliation(s)
- Sharanya Manga
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Neha Muthavarapu
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Renisha Redij
- GIH Artificial Intelligence Laboratory (GAIL), Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | | | - Avneet Kaur
- Microwave Engineering and Imaging Laboratory (MEIL), Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Sunil Gaddam
- Microwave Engineering and Imaging Laboratory (MEIL), Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Keerthy Gopalakrishnan
- GIH Artificial Intelligence Laboratory (GAIL), Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Microwave Engineering and Imaging Laboratory (MEIL), Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Rutuja Shinde
- Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | | | - Poulami Samaddar
- Microwave Engineering and Imaging Laboratory (MEIL), Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Devanshi N Damani
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Department of Internal Medicine, Texas Tech University Health Science Center, El Paso, TX 79995, USA
| | - Suganti Shivaram
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA
| | - Shuvashis Dey
- Microwave Engineering and Imaging Laboratory (MEIL), Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Department of Electrical and Computer Engineering, North Dakota State University, Fargo, ND 58105, USA
| | - Dipankar Mitra
- Microwave Engineering and Imaging Laboratory (MEIL), Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Department of Computer Science, University of Wisconsin-La Crosse, La Crosse, WI 54601, USA
| | - Sayan Roy
- Microwave Engineering and Imaging Laboratory (MEIL), Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Department of Electrical Engineering and Computer Science, South Dakota Mines, Rapid City, SD 57701, USA
| | - Kanchan Kulkarni
- Centre de Recherche Cardio-Thoracique de Bordeaux, University of Bordeaux, INSERM, U1045, 33000 Bordeaux, France
- IHU Liryc, Heart Rhythm Disease Institute, Fondation Bordeaux Université, Bordeaux, 33600 Pessac, France
| | - Shivaram P Arunachalam
- GIH Artificial Intelligence Laboratory (GAIL), Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
- Microwave Engineering and Imaging Laboratory (MEIL), Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
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6
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Redij R, Kaur A, Muddaloor P, Sethi AK, Aedma K, Rajagopal A, Gopalakrishnan K, Yadav A, Damani DN, Chedid VG, Wang XJ, Aakre CA, Ryu AJ, Arunachalam SP. Practicing Digital Gastroenterology through Phonoenterography Leveraging Artificial Intelligence: Future Perspectives Using Microwave Systems. SENSORS (BASEL, SWITZERLAND) 2023; 23:2302. [PMID: 36850899 PMCID: PMC9967043 DOI: 10.3390/s23042302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 02/10/2023] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
Production of bowel sounds, established in the 1900s, has limited application in existing patient-care regimes and diagnostic modalities. We review the physiology of bowel sound production, the developments in recording technologies and the clinical application in various scenarios, to understand the potential of a bowel sound recording and analysis device-the phonoenterogram in future gastroenterological practice. Bowel sound production depends on but is not entirely limited to the type of food consumed, amount of air ingested and the type of intestinal contractions. Recording technologies for extraction and analysis of these include the wavelet-based filtering, autoregressive moving average model, multivariate empirical mode decompression, radial basis function network, two-dimensional positional mapping, neural network model and acoustic biosensor technique. Prior studies evaluate the application of bowel sounds in conditions such as intestinal obstruction, acute appendicitis, large bowel disorders such as inflammatory bowel disease and bowel polyps, ascites, post-operative ileus, sepsis, irritable bowel syndrome, diabetes mellitus, neurodegenerative disorders such as Parkinson's disease and neonatal conditions such as hypertrophic pyloric stenosis. Recording and analysis of bowel sounds using artificial intelligence is crucial for creating an accessible, inexpensive and safe device with a broad range of clinical applications. Microwave-based digital phonoenterography has huge potential for impacting GI practice and patient care.
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Affiliation(s)
- Renisha Redij
- GIH Artificial Intelligence Laboratory (GAIL), Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Avneet Kaur
- Microwave Engineering and Imaging Laboratory (MEIL), Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Pratyusha Muddaloor
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
| | - Arshia K. Sethi
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
| | - Keirthana Aedma
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
| | | | - Keerthy Gopalakrishnan
- GIH Artificial Intelligence Laboratory (GAIL), Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Microwave Engineering and Imaging Laboratory (MEIL), Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Ashima Yadav
- Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Devanshi N. Damani
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Department of Internal Medicine, Texas Tech University Health Science Center, El Paso, TX 79995, USA
| | - Victor G. Chedid
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
| | - Xiao Jing Wang
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
| | | | | | - Shivaram P. Arunachalam
- GIH Artificial Intelligence Laboratory (GAIL), Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Microwave Engineering and Imaging Laboratory (MEIL), Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
- Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
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7
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Lanza C, Carriero S, Ascenti V, Tintori J, Ricapito F, Lavorato R, Biondetti P, Angileri SA, Piacentino F, Fontana F, Venturini M, Ierardi AM, Carrafiello G. Percutaneous Application of High Power Microwave Ablation With 150 W for the Treatment of Tumors in Lung, Liver, and Kidney: A Preliminary Experience. Technol Cancer Res Treat 2023; 22:15330338231185277. [PMID: 37608585 PMCID: PMC10467382 DOI: 10.1177/15330338231185277] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/27/2022] [Accepted: 06/07/2023] [Indexed: 08/24/2023] Open
Abstract
OBJECTIVE The aim of this study is to evaluate the feasibility, safety, and short-term effectiveness of a high-power (150 W) microwave ablation (MWA) device for tumor ablation in the lung, liver, and kidney. METHODS Between December 2021 and June 2022, patients underwent high-power MWA for liver, lung, and kidney tumors. A retrospective observational study was conducted in accordance with the Declaration of Helsinki. The MWA system utilized a 150-W, 2.45-GHz microwave generator (Emprint™ HP Ablation System, Medtronic). The study assessed technical success, safety, and effectiveness, considering pre- and post-treatment diameter and volume, lesion location, biopsy and/or cone beam computed tomography (CBCT) usage, MWA ablation time, MWA power, and dose-area product (DAP). RESULTS From December 2021 to June 2022, 16 patients were enrolled for high-power MWA. Treated lesions included hepatocellular carcinoma (10), liver metastasis from colon cancer (1), liver metastasis from pancreatic cancer (1), squamous cell lung carcinoma (2), renal cell carcinoma (1), and renal oncocytoma (1). Technical success rate was 100%. One grade 1 complication (6.25%) was reported according to CIRSE classification. Overall effectiveness was 92.8%. Pre- and post-treatment mean diameters for liver lesions were 19.9 mm and 37.5 mm, respectively; for kidney lesions, 34 mm and 35 mm; for lung lesions, 29.5 mm and 31.5 mm. Pre- and post-treatment mean volumes for liver lesions were 3.4 ml and 24 ml, respectively; for kidney lesions, 8.2 ml and 20.5 ml; for lung lesions, 10.2 ml and 32.7 ml. The mean ablation time was 48 minutes for liver, 42.5 minutes for lung, and 42.5 minutes for renal ablation. The mean DAP for all procedures was 40.83 Gcm2. CONCLUSION This preliminary study demonstrates the feasibility, safety, and effectiveness of the new 150 W MWA device. Additionally, it shows reduced ablation times for large lesions.
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Affiliation(s)
- Carolina Lanza
- Postgraduate School in Radiodiagnostics, Università degli Studi di Milano, Milan, Italy
| | - Serena Carriero
- Postgraduate School in Radiodiagnostics, Università degli Studi di Milano, Milan, Italy
| | - Velio Ascenti
- Postgraduate School in Radiodiagnostics, Università degli Studi di Milano, Milan, Italy
| | - Jacopo Tintori
- Postgraduate School in Radiodiagnostics, Università degli Studi di Milano, Milan, Italy
| | - Francesco Ricapito
- Postgraduate School in Radiodiagnostics, Università degli Studi di Milano, Milan, Italy
| | - Roberto Lavorato
- Diagnostic and Interventional Radiology Department, IRCCS Ca’ Granda Fondazione Ospedale Maggiore Policlinico, Milan, Italy
| | - Pierpaolo Biondetti
- Diagnostic and Interventional Radiology Department, IRCCS Cà Granda Fondazione Ospedale Maggiore Policlinico, Università degli Studi di Milano, Milan, Italy
- Department of Health Science, Università degli Studi di Milano, Milano, Italy
| | - Salvatore Alessio Angileri
- Diagnostic and Interventional Radiology Department, IRCCS Cà Granda Fondazione Ospedale Maggiore Policlinico, Università degli Studi di Milano, Milan, Italy
| | - Filippo Piacentino
- Diagnostic and Interventional Radiology Unit, ASST Settelaghi, Varese, Italy
| | - Federico Fontana
- Diagnostic and Interventional Radiology Unit, ASST Settelaghi, Varese, Italy
- Insubria University, Varese, Italy
| | - Massimo Venturini
- Diagnostic and Interventional Radiology Unit, ASST Settelaghi, Varese, Italy
- Insubria University, Varese, Italy
| | - Anna Maria Ierardi
- Diagnostic and Interventional Radiology Department, IRCCS Cà Granda Fondazione Ospedale Maggiore Policlinico, Università degli Studi di Milano, Milan, Italy
| | - Gianpaolo Carrafiello
- Diagnostic and Interventional Radiology Department, IRCCS Cà Granda Fondazione Ospedale Maggiore Policlinico, Università degli Studi di Milano, Milan, Italy
- Department of Health Science, Università degli Studi di Milano, Milano, Italy
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8
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Effects of electromagnetic waves on pathogenic viruses and relevant mechanisms: a review. Virol J 2022; 19:161. [PMID: 36224556 PMCID: PMC9555253 DOI: 10.1186/s12985-022-01889-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 09/19/2022] [Accepted: 09/25/2022] [Indexed: 11/25/2022] Open
Abstract
Pathogenic viral infections have become a serious public health issue worldwide. Viruses can infect all cell-based organisms and cause varying injuries and damage, resulting in diseases or even death. With the prevalence of highly pathogenic viruses, such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), it is urgent to develop efficient and safe approaches to inactivate pathogenic viruses. Traditional methods of inactivating pathogenic viruses are practical but have several limitations. Electromagnetic waves, with high penetration capacity, physical resonance, and non-contamination, have emerged as a potential strategy to inactivate pathogenic viruses and have attracted increasing attention. This paper reviews the recent literature on the effects of electromagnetic waves on pathogenic viruses and their mechanisms, as well as promising applications of electromagnetic waves to inactivate pathogenic viruses, to provide new ideas and methods for this inactivation.
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9
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Albuquerque G, Cruz A, Carvalho D, Mayrink N, Pinheiro B, Campos A, Lima JG, Henriques J, Valentim R. A method based on non-ionizing microwave radiation for ancillary diagnosis of osteoporosis: a pilot study. Biomed Eng Online 2022; 21:70. [PMID: 36138480 PMCID: PMC9494783 DOI: 10.1186/s12938-022-01038-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Accepted: 09/07/2022] [Indexed: 11/25/2022] Open
Abstract
Background Osteoporosis is a condition characterized by low bone mineral density, which typically leads to fractures and reduced quality of life. Currently, diagnostic devices used to assess this condition (e.g., dual-energy X-ray absorptiometry) are very costly, making it infeasible to meet the demand for testing in most countries. Therefore, we proposed a preclinical validation of a prototype called Osseus in an attempt to enhance osteoporosis screening tests and alleviate their costs. Osseus is a device developed to assist bone mineral density classification. It integrates a microcontroller into other peripheral devices to measure the attenuation at the middle phalanx of the middle finger, with two antennas operating at the 2.45 GHz frequency. Results We conducted tests with plaster, poultry, and porcine bones. A comparison of the measurements of the original and mechanically altered samples demonstrated that the device can handle the complexity of the tissues within the bone structure and characterize its microarchitecture. Conclusions Osseus is a device that has been preliminarily validated. Ionising radiation needed for DXA tests is replaced by non-ionising microwave electromagnetic radiation. Osseus enables early detection of osteoporosis, reduces costs, and optimizes high-complexity testing referrals. There is a lack of validation studies with the reference/gold standard that are currently under development.
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Affiliation(s)
- Gabriela Albuquerque
- Advanced Technological Innovation Nucleus-NAVI, Federal Institute of Rio Grande Do Norte, Natal, RN, Brazil.
| | - Agnaldo Cruz
- Advanced Technological Innovation Nucleus-NAVI, Federal Institute of Rio Grande Do Norte, Natal, RN, Brazil
| | - Dionísio Carvalho
- Advanced Technological Innovation Nucleus-NAVI, Federal Institute of Rio Grande Do Norte, Natal, RN, Brazil
| | - Nadja Mayrink
- Advanced Technological Innovation Nucleus-NAVI, Federal Institute of Rio Grande Do Norte, Natal, RN, Brazil
| | - Bruno Pinheiro
- Advanced Technological Innovation Nucleus-NAVI, Federal Institute of Rio Grande Do Norte, Natal, RN, Brazil
| | - Antonio Campos
- Advanced Technological Innovation Nucleus-NAVI, Federal Institute of Rio Grande Do Norte, Natal, RN, Brazil
| | | | - Jorge Henriques
- Department of Informatics Engineering, University of Coimbra, Centre for Informatics and Systems of the University of Coimbra, Coimbra, Portugal
| | - Ricardo Valentim
- Advanced Technological Innovation Nucleus-NAVI, Federal Institute of Rio Grande Do Norte, Natal, RN, Brazil
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10
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Blanco-Angulo C, Martínez-Lozano A, Gutiérrez-Mazón R, Juan CG, García-Martínez H, Arias-Rodríguez J, Sabater-Navarro JM, Ávila-Navarro E. Non-Invasive Microwave-Based Imaging System for Early Detection of Breast Tumours. BIOSENSORS 2022; 12:bios12090752. [PMID: 36140137 PMCID: PMC9496561 DOI: 10.3390/bios12090752] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022]
Abstract
This work introduces a microwave-based system able to detect tumours in breast phantoms in a non-invasive way. The data acquisition system is composed of a hardware system which involves high-frequency components (antennas, switches and cables), a microcontroller, a vector network analyser used as measurement instrument and a computer devoted to the control and automation of the operation of the system. Concerning the software system, the computer runs a Python script which is in charge of mastering and automatising all the required stages for the data acquisition, from initialisation of the hardware system to performing and saving the measurements. We also report on the design of the high-performance broadband antenna used to carry out the measurements, as well as on the algorithm employed to build the final medical images, based on an adapted version of the so-called Improved Delay-and-Sum (IDAS) algorithm improved by a Hamming window filter and averaging preprocessing. The calibration and start-up of the system are also described. The experimental validation includes the use of different tumour models with different dielectric properties inside the breast phantom. The results show promising tumour detection capabilities, even when there is low dielectric contrast between the tumoural and healthy tissues, as is the usual case for dense breasts in young women.
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Affiliation(s)
- Carolina Blanco-Angulo
- Department of Materials Science, Optics and Electronic Technology, Miguel Hernández University of Elche, 03202 Elche, Spain
| | - Andrea Martínez-Lozano
- Department of Materials Science, Optics and Electronic Technology, Miguel Hernández University of Elche, 03202 Elche, Spain
| | - Roberto Gutiérrez-Mazón
- Department of Communications Engineering, Miguel Hernández University of Elche, 03202 Elche, Spain
| | - Carlos G. Juan
- Neuroengineering Biomedical Research Group, Institute of Bioengineering, Miguel Hernández University of Elche, 03202 Elche, Spain
- Medical Robotics Research Group, University of Málaga, 29071 Málaga, Spain
- Correspondence:
| | - Héctor García-Martínez
- Department of Materials Science, Optics and Electronic Technology, Miguel Hernández University of Elche, 03202 Elche, Spain
| | - Julia Arias-Rodríguez
- Department of Materials Science, Optics and Electronic Technology, Miguel Hernández University of Elche, 03202 Elche, Spain
| | - José M. Sabater-Navarro
- Neuroengineering Biomedical Research Group, Institute of Bioengineering, Miguel Hernández University of Elche, 03202 Elche, Spain
| | - Ernesto Ávila-Navarro
- Department of Materials Science, Optics and Electronic Technology, Miguel Hernández University of Elche, 03202 Elche, Spain
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Gupta AK, Venkataraman M, Joshi LT, Cooper EA. Potential use of microwave technology in dermatology. J DERMATOL TREAT 2022; 33:2899-2910. [PMID: 35699665 DOI: 10.1080/09546634.2022.2089333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Microwaves are used in medicine for diagnostics, and treatment of cancer. Recently, novel microwave devices (Swift®, Emblation Ltd, UK and miraDry®, Miramar Labs Inc., CA) have been cleared by the FDA and Health Canada for various dermatological conditions. OBJECTIVE AND METHODS To review the dermatological use of microwave-based treatments (plantar warts, corns, actinic keratosis, dermatophytosis, axillary hyperhidrosis, osmidrosis, and hidradenitis suppurativa). Clinical trials, case reports, or in vitro studies for each condition are summarized. RESULTS AND CONCLUSION Microwaves are a promising alternative therapy for cutaneous warts, actinic keratosis, axillary hyperhidrosis, and osmidrosis, with favorable safety profiles. However, patients with hidradenitis suppurativa have had negative clinical outcomes. Limited treatment of corns showed good pain reduction but did not resolve hyperkeratosis. A preliminary in vitro study indicated that microwave treatment inhibits the growth of T. rubrum. We present the first case of toenail onychomycosis successfully treated with microwaves. Despite the advancements in the use of microwaves, the mechanism of action in non-ablative treatment is not well understood; further research is needed. More high-quality randomized clinical trials with larger groups and long follow-up periods are also required to evaluate the clinical benefits and possible adverse effects of microwaves in treating dermatological conditions.
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Affiliation(s)
- A K Gupta
- Division of Dermatology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada.,Mediprobe Research Inc, London, Ontario, Canada
| | | | - L T Joshi
- School of Biomedical Science, University of Plymouth, Plymouth, UK
| | - E A Cooper
- Mediprobe Research Inc, London, Ontario, Canada
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Wu Y, Mu R, Li G, Li M, Lv W. Research progress in fluid and semifluid microwave heating technology in food processing. Compr Rev Food Sci Food Saf 2022; 21:3436-3454. [PMID: 35686487 DOI: 10.1111/1541-4337.12978] [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: 12/16/2021] [Revised: 04/12/2022] [Accepted: 04/28/2022] [Indexed: 11/30/2022]
Abstract
Microwave is a form of electromagnetic radiation that has high penetration and heating efficiency in food processing. Uneven heating is the main problem of microwave processing, especially in solid foods. Fluid and semifluid media, which are good carriers in microwave processing, have uniform dielectric properties and good material fluidity. Herein, we review the development, application prospects, and limitations of microwave in fluid and semifluid food processing and the research progress in microwave heating with steam as carrier. The mixture of generated steam and tiny micro droplets from food material under the action of microwave can absorb microwave and transfer heat evenly, which effectively improves the uniformity of microwave heating. Due to the relatively uniform dielectric properties and consistent texture of fluid and semifluid food materials, uneven heating phenomenon during their microwave processing can be significantly inhibited. Based on the development of microwave heating technology and equipment design, the microbial inactivation and enzyme inhibition in fluid and semifluid food were improved and food product with better retention of nutrients and sensory profile were produced. Also, microwave radiation can be used to prepare the printing material or process the printed product for 3D food printing, which enhances the added value of 3D printed products and the personalization of food manufacturing. In future research, intelligent control technology can be applied in the microwave processing of fluid and semifluid food materials for various applications. Therefore, the processing conditions can be adjusted automatically.
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Affiliation(s)
- Yiran Wu
- College of Engineering, China Agricultural University, Beijing, China
| | - Rongyi Mu
- College of Engineering, China Agricultural University, Beijing, China
| | - Guohua Li
- College of Engineering, China Agricultural University, Beijing, China
| | - Mengge Li
- College of Engineering, China Agricultural University, Beijing, China
| | - Weiqiao Lv
- College of Engineering, China Agricultural University, Beijing, China
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