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D'Amario M, Di Carlo M, Jahjah A, Mauro S, Natale S, Capogreco M. Ozone and Laser Effects on Dentin Hypersensitivity Treatment: A Randomized Clinical Study. J Endod 2024; 50:554-561. [PMID: 38382737 DOI: 10.1016/j.joen.2024.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/31/2024] [Accepted: 02/11/2024] [Indexed: 02/23/2024]
Abstract
INTRODUCTION The aim of this study was to evaluate and compare the clinical efficacy of diode laser and ozone gas in the treatment of dentin hypersensitivity (DHS). METHODS One hundred thirty-two teeth from 44 patients with moderate DHS were randomized into 3 groups according to a split-mouth design. In the diode laser group, the operator irradiated the superficial dentin exposed with an 808-nm wavelength and incremental power from 0.2 to 0.6 W with a 20-second interval. In the ozone gas group, the operator applied a high dose of ozone (32 g/m3) for 30 seconds using a silicon cup. In the placebo group, no therapy was applied. The dentin sensitivity level was evaluated upon enrollment (T0), immediately after treatment (T1), 3 months post-treatment (T2), and 6 months post-treatment (T3) with a cold air blast challenge and tactile stimuli. The pain severity was quantified according to the visual analogue scale. The Wilcoxon signed rank test was used to scrutinize potential statistical disparities among the treatments. Statistical significance was predetermined at P < .05. RESULTS A significant decrease of DHS was observed in the ozone gas group and the `diode laser group immediately after treatment and after 3 and 6 months of the therapy. After 6 months from the therapy, the sensitivity values in the teeth treated with ozone gas remained statistically lower than those treated with diode lasers (P < .05). CONCLUSIONS A laser diode and ozone gas are both efficient as dentin sensitivity treatment. Ozone maintains an invariable effectiveness after 6 months.
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Affiliation(s)
- Maurizio D'Amario
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.
| | - Mariachiara Di Carlo
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Ali Jahjah
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | | | | | - Mario Capogreco
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
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2
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Ahmedi J, Agani Z, Ademi Abdyli R, Prekazi Loxha M, Hamiti‐Krasniqi V, Rexhepi A, Stubljar D. Comparison between ozone and CHX gel application for reduction of pain and incidence of dry socket after lower third molar removal. Clin Exp Dent Res 2023; 9:75-81. [PMID: 36245293 PMCID: PMC9932237 DOI: 10.1002/cre2.675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 09/29/2022] [Accepted: 10/02/2022] [Indexed: 02/17/2023] Open
Abstract
OBJECTIVES The aim of this study is to evaluate the efficacy between ozone gas and 1% chlorhexidine (CHX) gel in the incidence of dry socket after surgical extraction of impacted lower third molars. MATERIAL AND METHODS Overall, 30 patients of both genders were included in the study, with indication of surgical extraction of lower third molar, positioned similarly after being clinically and radiographically checked by X-ray and orthopantomography. Each patient was subjected to both groups in separate sessions: treated with ozone gas and with CHX gel 1%. Data on pain intensity, number of taken analgesics-painkillers, and dry socket were recorded for 48 h and at Day 7. RESULTS Ozone gas and CHX gel effectively reduced pain intensity and prevented dry socket. The number of taken analgesics 48 h and 7 days after surgery showed no statistical significance. The same was observed for the distribution of pain. Only one patient reported the occurrence of dry socket 7 days after the surgical extraction. CONCLUSIONS Ozone gas and CHX 1% gel are both efficient in decreasing postoperative symptoms and incidence rates of dry socket, but in comparison to each other, the use of ozone gas is showing a bit better prevention capability.
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Affiliation(s)
- Jehona Ahmedi
- Department of Oral SurgeryUniversity of PrishtinaPrishtinaKosovo
| | - Zana Agani
- Department of Oral SurgeryUniversity of PrishtinaPrishtinaKosovo
| | | | | | | | | | - David Stubljar
- In‐medico, Department of Research and DevelopmentMetlikaSlovenia
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3
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Dengiz E, Özcan Ç, Güven Yİ, Uçar S, Ener BK, Sözen S, Yağcı B, Güzel İA, Yiğit B, Andaç A, Güneş B, Bor E, Karabudak U, Kaya A. Ozone gas applied through nebulization as adjuvant treatment for lung respiratory diseases due to COVID-19 infections: a prospective randomized trial. Med Gas Res 2021; 12:55-59. [PMID: 34677153 PMCID: PMC8562398 DOI: 10.4103/2045-9912.326001] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The objective of this study was to provide lung disinfection by nebulizing ozone gas with distilled water and olive oil for patients who have clinical symptoms due to coronavirus disease 2019 (COVID-19). The study attempted to reduce the viral load of COVID-19 in the lungs of patients, to provide a faster response to medical treatment. Between August 2020 and September 2020, 30 patients who met the study criteria were prospectively evaluated. There were 2 groups with 15 patients in each group: patients in control group were not treated with ozone and only received standard COVID-19 treatment; patients in ozone group received lung disinfection technique with ozone and standard COVID-19 treatment. A statistically significant difference was found in the length of stay in hospital, change in C-reactive protein, polymerase chain reaction results after 5 days, and computed tomography scores between two groups. There was no statistically significant difference in D-dimer, urea, lactate dehydrogenase, lymphocyte, leukocyte, and platelet between two groups. According to the data, we think that the lung disinfection technique applied with ozone inhalation reduces the rate of pneumonia in COVID-19 patients and makes the patients respond faster to the treatment and become negative according to the polymerase chain reaction tests. The study was approved by the Ethical Committee of the İstanbul Medipol University Clinical Trials (approval No. 0011) on July 2, 2020.
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Affiliation(s)
- Erhan Dengiz
- Edis Pharma Pharmaceutical Industry, Istanbul, Turkey
| | - Çağrı Özcan
- Health Science Univercity, Umraniye Training and Research Hospital, Istanbul, Turkey
| | | | - Selcen Uçar
- Dr. Feriha Öz Emergency Hospital, İstanbul, Turkey
| | - Behçet Kemal Ener
- Health Science Univercity, Umraniye Training and Research Hospital, Istanbul, Turkey
| | | | - Buket Yağcı
- Health Science Univercity, Haydarpasa Training and Research Hospital, İstanbul, Turkey
| | | | - Betül Yiğit
- Dr. Feriha Öz Emergency Hospital, İstanbul, Turkey
| | | | | | - Emire Bor
- Edis Pharma Pharmaceutical Industry, Istanbul, Turkey
| | | | - Ali Kaya
- Edis Pharma Pharmaceutical Industry, Istanbul, Turkey
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4
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Hara H, Chida J, Pasiana AD, Uchiyama K, Kikuchi Y, Naito T, Takahashi Y, Yamamura J, Kuromatsu H, Sakaguchi S. Vaporized Hydrogen Peroxide and Ozone Gas Synergistically Reduce Prion Infectivity on Stainless Steel Wire. Int J Mol Sci 2021; 22:ijms22063268. [PMID: 33806892 PMCID: PMC8005173 DOI: 10.3390/ijms22063268] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/19/2021] [Accepted: 03/19/2021] [Indexed: 11/30/2022] Open
Abstract
Prions are infectious agents causing prion diseases, which include Creutzfeldt–Jakob disease (CJD) in humans. Several cases have been reported to be transmitted through medical instruments that were used for preclinical CJD patients, raising public health concerns on iatrogenic transmissions of the disease. Since preclinical CJD patients are currently difficult to identify, medical instruments need to be adequately sterilized so as not to transmit the disease. In this study, we investigated the sterilizing activity of two oxidizing agents, ozone gas and vaporized hydrogen peroxide, against prions fixed on stainless steel wires using a mouse bioassay. Mice intracerebrally implanted with prion-contaminated stainless steel wires treated with ozone gas or vaporized hydrogen peroxide developed prion disease later than those implanted with control prion-contaminated stainless steel wires, indicating that ozone gas and vaporized hydrogen peroxide could reduce prion infectivity on wires. Incubation times were further elongated in mice implanted with prion-contaminated stainless steel wires treated with ozone gas-mixed vaporized hydrogen peroxide, indicating that ozone gas mixed with vaporized hydrogen peroxide reduces prions on these wires more potently than ozone gas or vaporized hydrogen peroxide. These results suggest that ozone gas mixed with vaporized hydrogen peroxide might be more useful for prion sterilization than ozone gas or vaporized hydrogen peroxide alone.
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Affiliation(s)
- Hideyuki Hara
- Division of Molecular Neurobiology, Institute for Enzyme Research (KOSOKEN), Tokushima University, Tokushima 770-8503, Japan; (H.H.); (J.C.); (A.D.P.); (K.U.)
| | - Junji Chida
- Division of Molecular Neurobiology, Institute for Enzyme Research (KOSOKEN), Tokushima University, Tokushima 770-8503, Japan; (H.H.); (J.C.); (A.D.P.); (K.U.)
| | - Agriani Dini Pasiana
- Division of Molecular Neurobiology, Institute for Enzyme Research (KOSOKEN), Tokushima University, Tokushima 770-8503, Japan; (H.H.); (J.C.); (A.D.P.); (K.U.)
| | - Keiji Uchiyama
- Division of Molecular Neurobiology, Institute for Enzyme Research (KOSOKEN), Tokushima University, Tokushima 770-8503, Japan; (H.H.); (J.C.); (A.D.P.); (K.U.)
| | - Yutaka Kikuchi
- Department of Nutrition, Faculty of Healthcare Sciences, Chiba Prefectural University of Health Sciences, Chiba 261-0014, Japan;
| | - Tomoko Naito
- RD Center, Miura Corporation, Ehime 799-2651, Japan; (T.N.); (Y.T.)
| | - Yuichi Takahashi
- RD Center, Miura Corporation, Ehime 799-2651, Japan; (T.N.); (Y.T.)
| | - Junji Yamamura
- Environment & Clean Group, Strategy Development Department, Industrial Systems & General-Purpose Machinery Business Area, IHI Corporation, Tokyo 135-8710, Japan; (J.Y.); (H.K.)
| | - Hisashi Kuromatsu
- Environment & Clean Group, Strategy Development Department, Industrial Systems & General-Purpose Machinery Business Area, IHI Corporation, Tokyo 135-8710, Japan; (J.Y.); (H.K.)
| | - Suehiro Sakaguchi
- Division of Molecular Neurobiology, Institute for Enzyme Research (KOSOKEN), Tokushima University, Tokushima 770-8503, Japan; (H.H.); (J.C.); (A.D.P.); (K.U.)
- Correspondence: ; Tel.: +81-88-633-7438
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Murata T, Komoto S, Iwahori S, Sasaki J, Nishitsuji H, Hasebe T, Hoshinaga K, Yuzawa Y. Reduction of severe acute respiratory syndrome coronavirus-2 infectivity by admissible concentration of ozone gas and water. Microbiol Immunol 2020; 65:10-16. [PMID: 33230863 PMCID: PMC7753712 DOI: 10.1111/1348-0421.12861] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/01/2020] [Accepted: 11/20/2020] [Indexed: 12/24/2022]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is causing the global coronavirus disease 2019 (COVID-19) pandemic. Because complete elimination of SARS-CoV-2 appears difficult, decreasing the risk of transmission is important. Treatment with 0.1 and 0.05 ppm ozone gas for 10 and 20 hr, respectively, decreased SARS-CoV-2 infectivity by about 95%. The magnitude of the effect was dependent on humidity. Treatment with 1 and 2 mg/L ozone water for 10 s reduced SARS-CoV-2 infectivity by about 2 and 3 logs, respectively. Our results suggest that low-dose ozone, in the form of gas and water, is effective against SARS-CoV-2.
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Affiliation(s)
- Takayuki Murata
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Satoshi Komoto
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Satoko Iwahori
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Jun Sasaki
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Hironori Nishitsuji
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Terumitsu Hasebe
- Department of Radiology, Tokai University Hachioji Hospital, Tokai University School of Medicine, Hachioji, Tokyo, Japan
| | - Kiyotaka Hoshinaga
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Yukio Yuzawa
- Department of Nephrology, Fujita Health University School of Medicine, Toyoake, Japan
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Makeeva MK, Daurova FY, Byakova SF, Turkina AY. Treatment of an Endo-Perio Lesion with Ozone Gas in a Patient with Aggressive Periodontitis: A Clinical Case Report and Literature Review. Clin Cosmet Investig Dent 2020; 12:447-464. [PMID: 33149696 PMCID: PMC7604462 DOI: 10.2147/ccide.s267933] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 09/16/2020] [Indexed: 01/29/2023] Open
Abstract
The pulp and periodontium have obvious relationships that have been described in many studies. Pulp infections may affect periodontal tissues and vice versa. Teeth with endo-perio lesions have a worse prognosis than isolated endodontic or periodontal lesions. Elimination of endodontic and periodontal infections is essential for successful treatment, so co-operation between endodontists and periodontists is necessary. In this clinical case, a 44-year-old male presented with primary periodontal disease with secondary endodontic involvement in his lower right canine because of aggressive periodontitis. There was 10 mm of clinical attachment loss and 8 mm periodontal pocket mesial from the tooth and bone radiolucency periapical and lateral from the root. Periodontal therapy was followed by endodontic treatment. Periodontal therapy included root scaling and planing, treatment of the periodontal pocket with ozone gas, systemic antibiotics, oral hygiene instructions, and chlorhexidine rinsing. Endodontic therapy included root canal instrumentation with rotary endodontic files, irrigation, root canal treatment with ozone gas, and obturation with lateral compaction. Radiographs at a 6-month follow-up appointment showed complete healing of the periapical lesion and alveolar bone lateral to the root. Using an interdisciplinary approach to treat endo-perio lesions provides favorable clinical outcomes. Ozone therapy is beneficial for the successful treatment of endo-perio lesions with narrow periodontal pockets in patients with aggressive periodontitis and poor prognosis.
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Affiliation(s)
- Maria K Makeeva
- Conservative Dentistry Department, People's Friendship University of Russia (RUDN University), Moscow, Russia.,Therapeutic Dentistry Department, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Fatima Yu Daurova
- Conservative Dentistry Department, People's Friendship University of Russia (RUDN University), Moscow, Russia
| | - Svetlana F Byakova
- Therapeutic Dentistry Department, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Anna Yu Turkina
- Therapeutic Dentistry Department, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
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7
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Al Sarkhi AK. Hypothesis: The electrical properties of coronavirus. Electromagn Biol Med 2020; 39:433-436. [PMID: 33016156 DOI: 10.1080/15368378.2020.1830794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
To help investigate the relationship between inflammatory and other symptoms of coronavirus and the protein-protein interactions (PPI) that occur between viral proteins and protein molecules of the host cell, I propose that the electrostatic discharge (ESD) exists including corona discharge to lead to ozone gas. I cite evidence in support of this hypothesis. I hope that the proposed will inspire new studies in finding effective treatments and vaccines for individuals with coronavirus disease in 2019. I suggest possible future studies that may lend more credibility to the proposed.
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Affiliation(s)
- Awaad K Al Sarkhi
- College of Science, Technology, Engineering, and Mathematics, University of Arkansas at Little Rock , Little Rock, USA
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8
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Petani L, Koker L, Herrmann J, Hagenmeyer V, Gengenbach U, Pylatiuk C. Recent Developments in Ozone Sensor Technology for Medical Applications. Micromachines (Basel) 2020; 11:mi11060624. [PMID: 32604832 PMCID: PMC7344528 DOI: 10.3390/mi11060624] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/10/2020] [Accepted: 06/24/2020] [Indexed: 11/25/2022]
Abstract
There is increasing interest in the utilisation of medical gases, such as ozone, for the treatment of herniated disks, peripheral artery diseases, and chronic wounds, and for dentistry. Currently, the in situ measurement of the dissolved ozone concentration during the medical procedures in human bodily liquids and tissues is not possible. Further research is necessary to enable the integration of ozone sensors in medical and bioanalytical devices. In the present review, we report selected recent developments in ozone sensor technology (2016–2020). The sensors are subdivided into ozone gas sensors and dissolved ozone sensors. The focus thereby lies upon amperometric and impedimetric as well as optical measurement methods. The progress made in various areas—such as measurement temperature, measurement range, response time, and recovery time—is presented. As inkjet-printing is a new promising technology for embedding sensors in medical and bioanalytical devices, the present review includes a brief overview of the current approaches of inkjet-printed ozone sensors.
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Afsah-Hejri L, Hajeb P, Ehsani RJ. Application of ozone for degradation of mycotoxins in food: A review. Compr Rev Food Sci Food Saf 2020; 19:1777-1808. [PMID: 33337096 DOI: 10.1111/1541-4337.12594] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 05/07/2020] [Accepted: 05/28/2020] [Indexed: 12/01/2022]
Abstract
Mycotoxins such as aflatoxins (AFs), ochratoxin A (OTA) fumonisins (FMN), deoxynivalenol (DON), zearalenone (ZEN), and patulin are stable at regular food process practices. Ozone (O3 ) is a strong oxidizer and generally considered as a safe antimicrobial agent in food industries. Ozone disrupts fungal cells through oxidizing sulfhydryl and amino acid groups of enzymes or attacks the polyunsaturated fatty acids of the cell wall. Fusarium is the most sensitive mycotoxigenic fungi to ozonation followed by Aspergillus and Penicillium. Studies have shown complete inactivation of Fusarium and Aspergillus by O3 gas. Spore germination and toxin production have also been reduced after ozone fumigation. Both naturally and artificially, mycotoxin-contaminated samples have shown significant mycotoxin reduction after ozonation. Although the mechanism of detoxification is not very clear for some mycotoxins, it is believed that ozone reacts with the functional groups in the mycotoxin molecules, changes their molecular structures, and forms products with lower molecular weight, less double bonds, and less toxicity. Although some minor physicochemical changes were observed in some ozone-treated foods, these changes may or may not affect the use of the ozonated product depending on the further application of it. The effectiveness of the ozonation process depends on the exposure time, ozone concentration, temperature, moisture content of the product, and relative humidity. Due to its strong oxidizing property and corrosiveness, there are strict limits for O3 gas exposure. O3 gas has limited penetration and decomposes quickly. However, ozone treatment can be used as a safe and green technology for food preservation and control of contaminants.
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Affiliation(s)
- Leili Afsah-Hejri
- Mechanical Engineering Department, School of Engineering, University of California Merced, Merced, California
| | - Parvaneh Hajeb
- Department of Environmental Science, Aarhus University, Roskilde, Denmark
| | - Reza J Ehsani
- Mechanical Engineering Department, School of Engineering, University of California Merced, Merced, California
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10
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Abstract
Ozone (O3) gas is widely used as a strong oxidizing agent for many purposes, such as the decomposition/removal of organic contaminants and photoresist, and the deodorization/disinfection of air and water. However, ozone is highly toxic to the human body when the air concentration exceeds about 1 ppm. Therefore, there is increasing demand for simple, sensitive, reliable, and cost-effective techniques for sensing ozone gas. This article describes the features, advantages, and disadvantages of the available, practical techniques for sensing ozone gas in ambient air. The advantages of optical gas sensors as next-generation sensors is specifically introduced. The features of photoluminescent, semiconductor nanoparticles (quantum dots, QDs) as bright phosphors with the potential for various applications is further explored. Lastly, recent research results demonstrating the ozone sensitivity of photoluminescent CdSe-based core-shell quantum dots are presented. These results strongly suggest that optical ozone sensing using photoluminescent quantum dots is a promising technique.
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Affiliation(s)
- Masanori Ando
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
| | - Vasudevanpillai Biju
- Research Institute for Electronic Science and Graduate School of Environmental Science, Hokkaido University
| | - Yasushi Shigeri
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
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11
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Abstract
The use of ozone (O3) gas as a therapy in alternative medicine has attracted skepticism due to its unstable molecular structure. However, copious volumes of research have provided evidence that O3's dynamic resonance structures facilitate physiological interactions useful in treating a myriad of pathologies. Specifically, O3 therapy induces moderate oxidative stress when interacting with lipids. This interaction increases endogenous production of antioxidants, local perfusion, and oxygen delivery, as well as enhances immune responses. We have conducted a comprehensive review of O3 therapy, investigating its contraindications, routes and concentrations of administration, mechanisms of action, disinfectant properties in various microorganisms, and its medicinal use in different pathologies. We explore the therapeutic value of O3 in pathologies of the cardiovascular system, gastrointestinal tract, genitourinary system, central nervous system, head and neck, musculoskeletal, subcutaneous tissue, and peripheral vascular disease. Despite compelling evidence, further studies are essential to mark it as a viable and quintessential treatment option in medicine.
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Affiliation(s)
| | - Anthony L Wilson
- Department of Physiology and Biophysics, Stony Brook University School of Medicine, Stony Brook, NY, USA
| | - Jason Gandhi
- Department of Physiology and Biophysics, Stony Brook University School of Medicine, Stony Brook, NY, USA.,Medical Student Research Institute, St. George's University School of Medicine, Grenada, West Indies
| | - Sohrab Vatsia
- Department of Cardiothoracic Surgery, Lenox Hill Hospital, New York, NY, USA
| | - Sardar Ali Khan
- Department of Physiology and Biophysics, Stony Brook University School of Medicine, Stony Brook, NY, USA.,Department of Urology, Stony Brook University School of Medicine, Stony Brook, NY, USA
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12
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Ahmedi J, Ahmedi E, Sejfija O, Agani Z, Hamiti V. Efficiency of gaseous ozone in reducing the development of dry socket following surgical third molar extraction. Eur J Dent 2016; 10:381-385. [PMID: 27403058 PMCID: PMC4926593 DOI: 10.4103/1305-7456.184168] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE The objective of this study was to assess the efficacy of ozone gas (O3) on the reduction of dry socket (DS) occurrence following surgical extraction of lower jaw third molars, influence of the indication for the extraction, and the difficulty of extraction on the incidence of DS. MATERIALS AND METHODS This study included thirty patients with bilaterally impacted third molars of mandible requiring surgical procedure for extraction. Following extraction, in the control group, saline solution was used for irrigation of extraction sockets and in the experimental group, intra-alveolar O3 was applied for 12 s (Prozone, W and H, UK, Ltd.). The surgeries were performed by the same oral surgeon. The follow-up visits were performed at 48 h and on day seven, postsurgery where the symptoms of DS were evaluated and intensity of pain has been recorded using visual analog scale 0-100. RESULTS In this pilot study, DS was present in 16.67% and 3.33% of cases in the control and experimental groups, respectively (P = 0.20). CONCLUSION The application of O3 may reduce the incidence of DS and accelerates the recovery period after the surgery. Prophylactic use of O3 may be suggested in all patients, especially in the patients at a risk of development of DS.
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Affiliation(s)
- Jehona Ahmedi
- Department of Oral Surgery, Faculty of Medicine, School of Dentistry, Prishtina, Kosovo
| | - Enis Ahmedi
- Department of Prosthodontics, Faculty of Medicine, School of Dentistry, Prishtina, Kosovo
| | - Osman Sejfija
- Department of Oral Surgery, Faculty of Medicine, School of Dentistry, Prishtina, Kosovo
| | - Zana Agani
- Department of Oral Surgery, Faculty of Medicine, School of Dentistry, Prishtina, Kosovo
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Thirumalairajan S, Mastelaro VR, Escanhoela CA. In-depth understanding of the relation between CuAlO₂ particle size and morphology for ozone gas sensor detection at a nanoscale level. ACS Appl Mater Interfaces 2014; 6:21739-21749. [PMID: 25401778 DOI: 10.1021/am507158z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A morphology-dependent nanomaterial for energy and environment applications is one of the key challenges for materials science and technology. In this study, we investigate the effect of the particle size of CuAlO2 nanostructures prepared through the facile and hydrothermal process to detect ozone gas. Phase analysis and structural information were obtained using X-ray diffraction and micro-Raman studies. The chemical states of CuAlO2 atomic species were determined by X-ray photoelectron spectroscopy. Electron microscopy images revealed the flower and hexagonal shape constituted of pentagon and oval CuAlO2 nanoparticles with average size ∼40 and 80 nm. The specific surface area was measured and found to be 59.8 and 70.8 m(2) g(-1), respectively. The developed CuAlO2 nanostructures not only possess unique morphology but also influence the ozone gas sensing performance. Among the two structures, CuAlO2, with hexagonal morphology, exhibited superior ozone detection for 200 ppb at 250 °C, with a response and good recovery time of 25 and 39 s compared to the flower morphology (28 and 69 s). These results show that not only does the morphology play an major role but also the particle size, surface area, gas adsorption/desorption, and grain-grain contact, as proposed in the gas sensing mechanism. Finally, we consider CuAlO2 material as a good candidate for environment monitoring applications.
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Affiliation(s)
- S Thirumalairajan
- Instituto de Física de São Carlos (IFSC), University de São Paulo , CP 369, 13560-970 São Carlos, SP, Brazil
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