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Senthamilselvan T, Nithiyanantham S, Kogulakrishnan K, Mahalakshmi S, Lakshmigandhan T, Mohan R, Gunasekaran B. Structural, magnetic, electric and electrochemical studies on zinc doped magnesium ferrite nano particles - Sol-gel method. Heliyon 2024; 10:e25511. [PMID: 38352742 PMCID: PMC10862666 DOI: 10.1016/j.heliyon.2024.e25511] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 01/22/2024] [Accepted: 01/29/2024] [Indexed: 02/16/2024] Open
Abstract
The sol-gel process was used to prepare zinc doped magnesium ferrite (Mg1-xZnxFe2O4) nanopowders obtained from the nitrates of magnesium, zinc and ferrous is precursor materials, maintain the pH value which were then studied for sensing purposes. The crystallite size and phase of the ferrite samples studied by X-ray diffraction (XRD) revealed a pure spinel phase (Mg1-xZnxFe2O4) with a cubic spinel structure and higher crystallite size and etc. The functional groups with possible stretching analysis were taken from Fourier transform infrared spectroscopy (FTIR). The surface features and morphology and the purity of the samples were analysed through a Scanning electron microscope (SEM) and energy dispersive X-ray (EDAX) spectrum respectively. Through the vibrating sample magnetometer (VSM), the magnetic behaviour was studied from relevant parameters such as saturation magnetization (Ms), coercivity (Hc) and retentivity (Mr). The larger Ms in 0.8 has ferromagnetic nature were observed. The dielectric constants (ε'& ε''), dielectric loss (tan δ) with AC conductivity (σAC) determined through the LCR metre, and electrochemical behaviour of the samples were found through cyclic voltametery. The possible polarizations at lower and higher frequencies are studied The obtained data are extensively examined and understood.
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Affiliation(s)
- T. Senthamilselvan
- Department of Physics, Thiru.Vi.Ka Government Arts College Thiruvarur, Tamilnadu- 610003, India
| | - S. Nithiyanantham
- Department of Physics, Thiru.Vi.Ka Government Arts College Thiruvarur, Tamilnadu- 610003, India
| | - K. Kogulakrishnan
- Department of Physics, Thiru.Vi.Ka Government Arts College Thiruvarur, Tamilnadu- 610003, India
| | - S. Mahalakshmi
- Department of Physics, Ethiraj College for women Chennai, Tamilnadu -600008, India
| | - T. Lakshmigandhan
- Department of Physics, Thiru.Vi.Ka Government Arts College Thiruvarur, Tamilnadu- 610003, India
| | - R. Mohan
- Department of Chemistry, AMET University, Kanathur, Chennai - 603112, India
| | - B. Gunasekaran
- Department of Physics, SRM University, Kattankulathur, Chennai, 603203, India
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Damen P, van Rossum PSN, Chen Y, Liao Z, Hofstetter W, Hobbs BP, Mohan R, Lin SH. Comparing 90-Day Post-Operative Mortality after Neoadjuvant Proton-Based vs. Photon-Based Chemoradiotherapy for Esophageal Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e346-e347. [PMID: 37785204 DOI: 10.1016/j.ijrobp.2023.06.2415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Standard of treatment for locally advanced esophageal cancer consists of chemoradiotherapy (CRT) followed by surgery. Evidence suggests that proton beam therapy (PBT) results in lower toxicity and fewer post-operative complications compared to photon-based radiotherapy (RT). Mortality in the first 90 days after surgery is a rare event occurring in 2-8% of patients, with higher reported rates (of up to 17%) in older patients. This 90-day mortality (90DM) rate is an important measure of post-operative (non-oncologic) mortality as a proxy of quality of care. We hypothesize that PBT could reduce the incidence of 90DM compared to photon-based RT. MATERIALS/METHODS From a single-center retrospectively acquired database patients with esophageal cancer treated with neoadjuvant CRT and esophagectomy in 1998-2022 were selected. Univariable logistic regression analyses were used to study the associations of RT modality and other patient- and treatment-related characteristics with 90DM. Subsequently, 3 separate methods were applied to adjust for confounding bias. These included multivariable logistic regression, 1:1 nearest-neighbor propensity score matching (PSM), and inverse probability of treatment weighting (IPTW). Finally, stratified analyses for patient groups aged ≥67 vs. <67 years were performed. RESULTS A total of 894 eligible patients were included (PBT, n = 202; photon-based RT, n = 692). PBT patients had a significantly higher age, better performance score, and a higher number of comorbidities. The 90DM rate was 5 (2.5%) in the PBT group and 29 (4.2%) in the photon-based RT group (p = 0.262). Significant univariable predictors of 90DM included higher age and tumor location. After multivariable adjustment, PBT vs. photon therapy was not significantly associated with 90DM (OR 0.49, 95% CI 0.18-1.31). The 90DM rates in the PSM cohort (n = 181 vs. n = 181) were 2.8% for PBT and 3.3% for photon-based RT (p = 0.379). The 90DM rates in the IPTW cohort were 2.8% for PBT and 4.1% for photon-based RT (p = 0.427). In the full cohort, stratified analysis for age groups revealed that in patients aged ≥67 years, PBT was associated with a decreased risk of 90DM compared to photon-based RT (1.3% vs. 8.8%; p = 0.046), which was not the case in patients aged <67 years. In the PSM cohort, a comparable (but non-significant) difference was observed in favor of PBT in patients aged ≥67 years (i.e., 1.5% vs. 7.5%; p = 0.099). Within-group analyses in the original cohort demonstrated that a higher age significantly increased the risk of 90DM within the photon-based RT group (8.8% vs. 2.7% for age ≥67 vs. <67 years; p = 0.001), but not within the PBT group (1.3% vs. 3.2%; p = 0.398). CONCLUSION Post-operative 90DM after esophagectomy for cancer was not significantly different between PBT and photon-based neoadjuvant CRT. However, among older patients we observed a signal that PBT may reduce the risk of 90DM. Higher age increased the risk of 90DM in patients who underwent photon-based RT, but not in patients who underwent PBT.
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Affiliation(s)
- P Damen
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX; Department of Radiation Oncology, The University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - P S N van Rossum
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX; Department of Radiation Oncology, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Y Chen
- Department of Biostatistics and Data Science, University of Texas Health Science Center, Houston, TX
| | - Z Liao
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - W Hofstetter
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - B P Hobbs
- Department of Population Health, The University of Austin Dell Medical School, Austin, TX
| | - R Mohan
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - S H Lin
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
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Jain S, Mohanachandran J, Mohan R. Outcomes and complications of Titanium elastic nailing for forearm bones fracture in children: our experience in a district general hospital in the United Kingdom. Acta Orthop Belg 2023; 89:539-546. [PMID: 37935240 DOI: 10.52628/89.3.12032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
Intramedullary Titanium elastic nailing (TENS) is successfully used for irreducible and displaced forearm bone fractures in children. The purpose of this study was to report the potential complications and functional outcomes associated with paediatric forearm fractures treated with TENS nails. We retrospectively reviewed 65 children with displaced forearm bone fractures treated by TENS nailing with a mean follow-up of 5.84 months (4-12). Data detailing patient demographics, fracture characteristics, associated fractures, injury surgery interval, grade of the operating surgeon, methods of fixation, time to union, the timing of removal of the nail, and complications were collected and analysed. The mean age in our study was 9.13 years. 92% had fractures of both radius and ulna, 83.3% had fixation of both bones, and 16.7% had single bone fixation only. Open reduction was required in 38.5% of cases. The average time to fracture union was 10.34 weeks (6-20). The average time of implant removal was 20.12 weeks (9-32). We observed an overall complication rate of 41.5%. We noted a higher (56% vs 32.5%, p=0.059) complication rate in open reduction cases. According to the Price criteria, we had excellent to good results in over 98% of patients despite a slightly higher complication rate. Titanium elastic nailing is a safe, reliable method of internal fixation for irreducible or unstable fractures of both bones of the forearm in children. Open reduction of fracture was associated with higher complications. Despite higher overall complications, we noted excellent functional results in most cases.
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Mohan R, Rakkappan C, Punitha N, Jayamoorthy K, Venkatesh G. Effect of MPA capping on the structural, optical and thermal properties of Zn 0.96Ni 0.04S nanoparticles. INORG NANO-MET CHEM 2023. [DOI: 10.1080/24701556.2023.2188453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Affiliation(s)
- R. Mohan
- Department of Physics, S.S.Duraisamy Nadar Mariammal College, Kovilpatti, Tamil Nadu, India
| | - C. Rakkappan
- Department of Physics, Annamalai University, Chidambaram, Tamil Nadu, India
| | - N. Punitha
- Department of Physics, St.Joseph’s College of Engineering, Chennai, Tamil Nadu, India
| | - K. Jayamoorthy
- Department of Chemistry, St.Joseph’s College of Engineering, Chennai, Tamil Nadu, India
| | - G. Venkatesh
- Department of Chemistry, Muthayammal Engineering College (Autonomous), Rasipuram, Tamil Nadu, India
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Staunton DM, Mohan R, Carter JR, Highcock AJ. Total knee replacement survivorship by Design Philosophy: are we ignoring medial pivot design? Analysis based on the UK National Joint Registry. Acta Orthop Belg 2023; 89:37-43. [PMID: 37294983 DOI: 10.52628/89.1.9913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The UK National Joint Registry(NJR) has not reported total knee replacement (TKR) survivorship based on design phi- losophy alone, unlike its international counterparts. We report outcomes of implant survivorship based on design phi- losophy using data from NJR's 2020 annual report. All TKR implants with an identifiable design philosophy from NJR data were included. Cumulative revision data for cruciate-retaining(CR), posterior stabilised(PS), mobile-bearing(MB) design philosophies was derived from merged NJR data. Cumulative revision data for individual brands of implants with the medial pivot (MP) philosophy were used to calculate overall survivorship for this design philosophy. The all-cause revision was used as the endpoint and calculated to 15 years follow-up with Kaplan-Meier curves. 1,144,384 TKRs were included. CR is the most popular design philosophy (67.4%), followed by PS(23.1%), MB (6.9%) and least commonly MP (2.6%). MP and CR implants showed the best survivorship (95.7% and 95.6% respectively) at 15 years which is statistically significant at, and beyond, 10 years. Observed survivorship was lower at all time points with the PS and MB implants (94.5% for both designs at 15 years). While all design philosophies considered in this study survive well, CR and MP designs offer statistically superior survivorship at and beyond 10 years. MP design performs better than CR beyond 13 years yet, remain the least popular design philosophy used. Publishing data based on knee arthroplasty design phi- losophy would help surgeons when making decisions on implant choice.
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Mandal S, Gnana Sowndarya A A, Maheshkumar J, Banothu R, Lobo NP, Samanta D, Mohan R. Spectroscopic, thermal, and mechanical characterization of the polymeric fabrics used in extreme low-temperature protective garments. J INDIAN CHEM SOC 2023. [DOI: 10.1016/j.jics.2022.100839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Gollavelli G, Gedda G, Mohan R, Ling YC. Status Quo on Graphene Electrode Catalysts for Improved Oxygen Reduction and Evolution Reactions in Li-Air Batteries. Molecules 2022; 27:molecules27227851. [PMID: 36431956 PMCID: PMC9692502 DOI: 10.3390/molecules27227851] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/01/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022] Open
Abstract
Reduced global warming is the goal of carbon neutrality. Therefore, batteries are considered to be the best alternatives to current fossil fuels and an icon of the emerging energy industry. Voltaic cells are one of the power sources more frequently employed than photovoltaic cells in vehicles, consumer electronics, energy storage systems, and medical equipment. The most adaptable voltaic cells are lithium-ion batteries, which have the potential to meet the eagerly anticipated demands of the power sector. Working to increase their power generating and storage capability is therefore a challenging area of scientific focus. Apart from typical Li-ion batteries, Li-Air (Li-O2) batteries are expected to produce high theoretical power densities (3505 W h kg-1), which are ten times greater than that of Li-ion batteries (387 W h kg-1). On the other hand, there are many challenges to reaching their maximum power capacity. Due to the oxygen reduction reaction (ORR) and oxygen evolution reaction (OES), the cathode usually faces many problems. Designing robust structured catalytic electrode materials and optimizing the electrolytes to improve their ability is highly challenging. Graphene is a 2D material with a stable hexagonal carbon network with high surface area, electrical, thermal conductivity, and flexibility with excellent chemical stability that could be a robust electrode material for Li-O2 batteries. In this review, we covered graphene-based Li-O2 batteries along with their existing problems and updated advantages, with conclusions and future perspectives.
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Affiliation(s)
- Ganesh Gollavelli
- Department of Humanities and Basic Sciences, Aditya Engineering College, Surampalem, Jawaharlal Nehru Technological University Kakinada, Kakinada 533437, India
| | - Gangaraju Gedda
- Department of Chemistry, Presidency University, Banglore 560064, India
| | - Raja Mohan
- Department of Chemistry, Presidency University, Banglore 560064, India
| | - Yong-Chien Ling
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
- Correspondence:
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McCullum L, Xing S, Shin J, McNamara A, Alfonso C, Domal S, Withrow J, Bolch W, Hong T, Lin S, Mohan R, Paganetti H, Grassberger C. High Dose Rate and Fractionation to Reduce Radiation-Induced Lymphopenia: In Vivo Derivation of Lymphocyte Radiosensitivity Using Patient-Specific Blood Flow Simulations. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Bronk J, Bronk L, Singh S, Guan F, Wang X, Zhu X, Schueler E, Jiang D, Mohan R, Koong A, Lang F, Grosshans D. Enhanced Radiation-Sparing Effects of Ultra-High Dose Rate Proton Radiation (FLASH-RT) in a Human Induced Pluripotent Stem Cell-Derived Cerebral Organoid Model. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Kakkar N, Khatti N, Vasishta R, Mohan R. A comparison of morphologic grading system based on architectural patterns and WHO/ ISUP grading system in clear cell renal cell carcinomas. EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)02539-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Musunuru H, Keller A, Lin S, Mohan R, Ellsworth S. Modeling Potential Lymphocyte-Sparing Effect of Involved-Field Radiotherapy in Rectal Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Balakrishnan A, Jah A, Lesurtel M, Andersson B, Gibbs P, Harper SJF, Huguet EL, Kosmoliaptsis V, Liau SS, Praseedom RK, Ramia JM, Branes A, Lendoire J, Maithel S, Serrablo A, Achalandabaso M, Adham M, Ahmet A, Al-Sarireh B, Albiol Quer M, Alconchel F, Alejandro R, Alsammani M, Alseidi A, Anand A, Anselmo A, Antonakis P, Arabadzhieva E, de Aretxabala X, Aroori S, Ashley S, Ausania F, Banerjee A, Barabino M, Bartlett A, Bartsch F, Belli A, Beristain-Hernandez J, Berrevoet F, Bhatti A, Bhojwani R, Bjornsson B, Blaz T, Byrne M, Calvo M, Castellanos J, Castro M, Cavallucci D, Chang D, Christodoulis G, Ciacio O, Clavien P, Coker A, Conde-Rodriguez M, D'Amico F, D'Hondt M, Daams F, Dasari B, De Beillis M, de Meijer V, Dede K, Deiro G, Delgado F, Desai G, Di Gioia A, Di Martino M, Dixon M, Dorovinis P, Dumitrascu T, Ebata T, Eilard M, Erdmann J, Erkan M, Famularo S, Felli E, Fergadi M, Fernandez G, Fox A, Galodha S, Galun D, Ganandha S, Garcia R, Gemenetzis G, Giannone F, Gil L, Giorgakis E, Giovinazzo F, Giuffrida M, Giuliani T, Giuliante F, Gkekas I, Goel M, Goh B, Gomes A, Gruenberger T, Guevara O, Gulla A, Gupta A, Gupta R, Hakeem A, Hamid H, Heinrich S, Helton S, Heumann A, Higuchi R, Hughes D, Inarejos B, Ivanecz A, Iwao Y, Iype S, Jaen I, Jie M, Jones R, Kacirek K, Kalayarasan R, Kaldarov A, Kaman L, Kanhere H, Kapoor V, Karanicolas P, Karayiannakis A, Kausar A, Khan Z, Kim DS, Klose J, Knowles B, Koh P, Kolodziejczyk P, Komorowski A, Koong J, Kozyrin I, Krishna A, Kron P, Kumar N, van Laarhoven S, Lakhey P, Lanari J, Laurenzi A, Leow V, Limbu Y, Liu YB, Lob S, Lolis E, Lopez-Lopez V, Lozano R, Lundgren L, Machairas M, Magouliotis D, Mahamid A, Malde D, Malek A, Malik H, Malleo G, Marino M, Mayo S, Mazzola M, Memeo R, Menon K, Menzulin R, Mohan R, Morgul H, Moris D, Mulita F, Muttillo E, Nahm C, Nandasena M, Nashidengo P, Nickkholgh A, Nikov A, Noel C, O'Reilly D, O'Rourke T, Ohtsuka M, Omoshoro-Jones J, Pandanaboyana S, Pararas N, Patel R, Patkar S, Peng J, Perfecto A, Perinel J, Perivoliotis K, Perra T, Phan M, Piccolo G, Porcu A, Primavesi F, Primrose J, Pueyo-Periz E, Radenkovic D, Rammohan A, Rowcroft A, Sakata J, Saladino E, Schena C, Scholer A, Schwarz C, Serrano P, Silva M, Soreide K, Sparrelid E, Stattner S, Sturesson C, Sugiura T, Sumo M, Sutcliffe R, Teh C, Teo J, Tepetes K, Thapa P, Thepbunchonchai A, Torres J, Torres O, Torzili G, Tovikkai C, Troncoso A, Tsoulfas G, Tuzuher A, Tzimas G, Umar G, Urbani L, Vanagas T, Varga, Velayutham V, Vigano L, Wakai T, Yang Z, Yip V, Zacharoulis D, Zakharov E, Zimmitti G. Heterogeneity of management practices surrounding operable gallbladder cancer - results of the OMEGA-S international HPB surgical survey. HPB (Oxford) 2022; 24:2006-2012. [PMID: 35922277 DOI: 10.1016/j.hpb.2022.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/22/2022] [Accepted: 06/28/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND Gallbladder cancer (GBC) is an aggressive, uncommon malignancy, with variation in operative approaches adopted across centres and few large-scale studies to guide practice. We aimed to identify the extent of heterogeneity in GBC internationally to better inform the need for future multicentre studies. METHODS A 34-question online survey was disseminated to members of the European-African Hepatopancreatobiliary Association (EAHPBA), American Hepatopancreatobiliary Association (AHPBA) and Asia-Pacific Hepatopancreatobiliary Association (A-PHPBA) regarding practices around diagnostic workup, operative approach, utilization of neoadjuvant and adjuvant therapies and surveillance strategies. RESULTS Two hundred and three surgeons responded from 51 countries. High liver resection volume units (>50 resections/year) organised HPB multidisciplinary team discussion of GBCs more commonly than those with low volumes (p < 0.0001). Management practices exhibited areas of heterogeneity, particularly around operative extent. Contrary to consensus guidelines, anatomical liver resections were favoured over non-anatomical resections for T3 tumours and above, lymphadenectomy extent was lower than recommended, and a minority of respondents still routinely excised the common bile duct or port sites. CONCLUSION Our findings suggest some similarities in the management of GBC internationally, but also specific areas of practice which differed from published guidelines. Transcontinental collaborative studies on GBC are necessary to establish evidence-based practice to minimise variation and optimise outcomes.
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Affiliation(s)
- Anita Balakrishnan
- Department of HPB Surgery, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, United Kingdom.
| | - Asif Jah
- Department of HPB Surgery, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, United Kingdom
| | - Mickael Lesurtel
- Department of HPB Surgery and Liver Transplantation, Beaujon Hospital, University of Paris Cité, 100 Bd du Général Leclerc, 92110, Clichy, France
| | - Bodil Andersson
- Department of Surgery, Lund University, Skane University Hospital, Lund, Sweden
| | - Paul Gibbs
- Department of HPB Surgery, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, United Kingdom
| | - Simon J F Harper
- Department of HPB Surgery, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, United Kingdom
| | - Emmanuel L Huguet
- Department of HPB Surgery, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, United Kingdom
| | - Vasilis Kosmoliaptsis
- Department of HPB Surgery, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, United Kingdom
| | - Siong S Liau
- Department of HPB Surgery, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, United Kingdom
| | - Raaj K Praseedom
- Department of HPB Surgery, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, United Kingdom
| | - Jose M Ramia
- Department of Surgery, Hospital General Universitario de Alicante, Avenida Pintor Baeza, 12 03010 Alicante, Spain
| | - Alejandro Branes
- Department of HPB Surgery, Hospital Sotero del Rio, Av. Concha y Toro 3459, Puente Alto, Región Metropolitana, Chile
| | - Javier Lendoire
- Department of Surgery, University of Buenos Aires, Hospital Dr Cosme Argerich, Buenos Aires, Argentina
| | - Shishir Maithel
- Department of Surgery, Emory University School of Medicine, Atlanta, GA, 30322 USA
| | - Alejandro Serrablo
- Department of HPB Surgery, Miguel Servet University Hospital, Zaragoza, Spain
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He Y, Adair A, Cazoulat G, Yepes P, Titt U, Wu C, Mirkovic D, Balter P, Pollard J, Cardenas C, Liao Z, Mohan R, Brock K. Modeling Variable Proton Relative Biological Effectiveness (RBE) Using Voxel-Level Image Density Change for Non-Small Cell Lung Cancer (NSCLC) Patients Treated with Passive Scattering Proton Therapy (PSPT) or Intensity Modulated Photon Therapy (IMRT). Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Mandal S, Suresh S, Priya N, Banothu R, Mohan R, Sreeram KJ. Phthalate migration and its effects on poly(vinyl chloride)-based footwear: pathways, influence of environmental conditions, and the possibility of human exposure. Environ Sci Process Impacts 2022; 24:1844-1854. [PMID: 36107023 DOI: 10.1039/d2em00059h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The study of phthalate migration in footwear is important from an environmental viewpoint and the consumer health perspective as it remains in direct contact with the user for a long time. In this research article, the migration of phthalate, specifically di-(2-ethylhexyl) phthalate (DEHP), from the poly(vinyl chloride) (PVC) shoe sole to the attached leather insole has been studied for six months under different environmental conditions. After one month, the DEHP concentration in the PVC sole decreased by 45-58%, and that in the leather insole increased from 0.35 mg g-1 to 38-58 mg g-1. After six months, about 90% of the DEHP has been lost from the PVC sole, and that in the leather insole reached close to its initial value (value before the experiment). The migration rate depends on the environmental conditions and the presence of phthalate soluble solvents in the sole-adhesive-insole system of the footwear. The influence of DEHP migration on the physicochemical characteristics of the PVC sole and leather insole has been studied by Fourier transform infrared spectroscopy-attenuated total reflectance (FTIR-ATR), thermo-gravimetric analysis (TGA), and differential scanning calorimetry (DSC). The migration and emission pathways of DEHP, the influence of environmental conditions, and the possibility of human exposure to phthalate through footwear are discussed.
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Affiliation(s)
- Sujata Mandal
- CLRI Center for Analysis, Testing, Evaluation and Reporting Services (CATERS), CSIR-Central Leather Research Institute (CLRI), Chennai-600020, India.
| | - S Suresh
- CLRI Center for Analysis, Testing, Evaluation and Reporting Services (CATERS), CSIR-Central Leather Research Institute (CLRI), Chennai-600020, India.
| | - N Priya
- CLRI Center for Analysis, Testing, Evaluation and Reporting Services (CATERS), CSIR-Central Leather Research Institute (CLRI), Chennai-600020, India.
| | - Ravi Banothu
- CLRI Center for Analysis, Testing, Evaluation and Reporting Services (CATERS), CSIR-Central Leather Research Institute (CLRI), Chennai-600020, India.
| | - R Mohan
- CLRI Center for Analysis, Testing, Evaluation and Reporting Services (CATERS), CSIR-Central Leather Research Institute (CLRI), Chennai-600020, India.
| | - K J Sreeram
- CLRI Center for Analysis, Testing, Evaluation and Reporting Services (CATERS), CSIR-Central Leather Research Institute (CLRI), Chennai-600020, India.
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Joshi V, Shrikhande S, Harish R, Giridharan A, Mohan R. Computational Fluid Dynamics Simulation on Thermal Performance of Al/Al 2O 3/SWCNT Nanocoolants for Turning Operations. Nanomaterials (Basel) 2022; 12:3508. [PMID: 36234636 PMCID: PMC9565317 DOI: 10.3390/nano12193508] [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] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/29/2022] [Accepted: 10/01/2022] [Indexed: 06/16/2023]
Abstract
The objective of this study is to numerically investigate the thermal performance of cutting fluids dispersed with nanoparticles for effective heat removal during turning operations. The simulations are performed using Ansys Fluent software, and the problem is modelled as a three-dimensional turbulent incompressible single-phase flow. The computational domain consists of a heated cutting tool and work piece, and nanocoolants are sprayed from a nozzle located above the machining zone. The nanocoolants are prepared by mixing mineral oil with nanoparticles of Al2O3 (Aluminium Oxide), Al (Aluminium) and SWCNT (Single Walled Carbon Nanotube). The heat transfer performances of different nanocoolants are compared by varying the nanoparticle volume fraction (φ) and coolant velocity (Uc) in the range of 2% ≤ φ ≤ 8% and 1 m/s ≤ Uc ≤ 15 m/s, respectively. The results indicated a drastic drop in the cutting tool temperature with an increase in the volume fraction of dispersed nanoparticles and coolant velocity. The increase in volume fraction decreases the average cutting tool temperature by 25.65% and also enhances the average heat transfer rate by 25.43%. It is additionally observed that SWCNT nanocoolants exhibited a superior thermal performance and heat removal rate compared with Al and Al2O3 nanocoolants. The analysed numerical results are validated and are in good accordance with the benchmark results validated from literature.
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Affiliation(s)
| | | | | | | | - R. Mohan
- Correspondence: ; Tel.: +91-44-39931639; Fax: +91-44-39932555
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Monti S, Cella L, Xu T, Mohan R, Liao Z, Palma G. MO-0875 Thoracic regions contributing to radiation induced lymphocyte depletion in lung cancer patients. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02441-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Palma G, Monti S, Xu T, Mohan R, Liao Z, Cella L. MO-0881 Dose patterns associated to radiation induced esophagitis in locally advanced NSCLC patients. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02447-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Mohan R. SP-0984 Prediction of radiotherapy-induced lymphopenia. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)04091-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Skaarup M, Lundemann M, Darkner S, Jørgensen M, Marner L, Mirkovic D, Grosshans D, Peeler C, Mohan R, Vogelius I, Appelt A. PO-1757 A framework for in-vivo, voxel-based assessment of radiation response through multimodal imaging. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03721-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Panimalar S, Kamatchi T, Kumaresan P, Nithiyanantham S, Mohan R. Second Harmonic Generation Studies on Dyes (Methyl Orange, Methyl Red) Doped Thiourea Barium Chloride (TBC) Crystals for Nonlinear Optical Applications. Chemistry Africa 2022. [DOI: 10.1007/s42250-022-00321-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Cella L, Monti S, Xu T, Durante M, Liuzzi R, Mohan R, Liao Z, Palma G. Spatial dose patterns associated to cardiac toxicity and survival in patients treated with photons and protons for lung cancer. Phys Med 2021. [DOI: 10.1016/s1120-1797(22)00130-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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22
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Palma G, Monti S, Pacelli R, Liao Z, Deasy J, Mohan R, Cella L. OC-0641 Radiation pneumonitis in thoracic cancer patients: multi-center voxel-based analysis. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06997-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Monti S, Cella L, Xu T, Mohan R, Liao Z, Palma G. OC-0637 Thoracic dose patterns associated with radiation induced lymphopenia in patients treated for NSCLC. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06993-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Mohan R, Rakkappan C, Punitha N, Jayamoorthy K, Dhanalekshmi KI. Effect of polyethylene glycol capping on structural, optical and thermal properties of ZnS:Ni 2+ nanoparticles. INORG NANO-MET CHEM 2021. [DOI: 10.1080/24701556.2021.1952241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- R. Mohan
- Department of Physics, S.S. Duraisamy Nadar Mariammal College, Kovilpatti, Tamil Nadu, India
| | - C. Rakkappan
- Department of Physics, Annamalai University, Tamil Nadu, India
| | - N. Punitha
- Department of Physics, St. Joseph’s College of Engineering, Chennai, Tamil Nadu, India
| | - K. Jayamoorthy
- Department of Chemistry, St. Joseph’s College of Engineering, Chennai, Tamil Nadu, India
| | - K. I. Dhanalekshmi
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China
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Abstract
In an era with smartphone photography and social media (specifically, "selfies"), basal view aesthetics is becoming increasingly important. Achieving balance between the nasal base and the remainder of the nose and face while preserving or restoring external valve function are essential to a successful rhinoplasty. Without a systematic approach to the nasal base, it is more difficult to achieve an ideal outcome from both aesthetic and functional standpoints. This article outlines an organized and systematic approach to the nasal base, beginning with comprehensive nasofacial analysis. The authors continue by describing idealized basal view aesthetics and provide a treatment algorithm for common deformities that include alar flaring and a wide nasal base. The authors attempt to provide a comprehensive approach to the treatment of the nasal base by discussing the implications of treating columellar deformities, tip positioning, or alar-columellar discrepancies on the overall aesthetics of the lower third of the nose. Furthermore, technical considerations are given for common surgical maneuvers addressing the alar base to help guide treatment and prevent complications such as poor scarring, notching, nostril asymmetry or stenosis (external valve obstruction), and alar deformities ("parenthesis" or "bowling pin"), to name a few.
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Affiliation(s)
- Rod J Rohrich
- From the Dallas Plastic Surgery Institute; and the Department of Plastic Surgery, University of Texas Southwestern
| | - Ira L Savetsky
- From the Dallas Plastic Surgery Institute; and the Department of Plastic Surgery, University of Texas Southwestern
| | - Thomas M Suszynski
- From the Dallas Plastic Surgery Institute; and the Department of Plastic Surgery, University of Texas Southwestern
| | - Raja Mohan
- From the Dallas Plastic Surgery Institute; and the Department of Plastic Surgery, University of Texas Southwestern
| | - Yash J Avashia
- From the Dallas Plastic Surgery Institute; and the Department of Plastic Surgery, University of Texas Southwestern
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Rosa F, Busato S, Avaroma FC, Mohan R, Carpinelli N, Bionaz M, Osorio JS. Short communication: Molecular markers for epithelial cells across gastrointestinal tissues and fecal RNA in preweaning dairy calves. J Dairy Sci 2020; 104:1175-1182. [PMID: 33162086 DOI: 10.3168/jds.2020-18955] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 05/26/2020] [Accepted: 08/14/2020] [Indexed: 11/19/2022]
Abstract
The objective of this study was to compare the transcription of gene markers for gastrointestinal (GI) epithelial cells, including fatty acid binding protein 2 (FABP2) and cytokeratin 8 (KRT8), and tight junction complex genes (TJP1, CLDN1, CLDN4) in fecal RNA against several GI tract tissue sections in dairy calves. Eight healthy Jersey calves were euthanized at 5 wk of age, and postmortem samples were collected from rumen, duodenum, jejunum, ileum, large intestine, cecum, and feces for total RNA isolation. Tissues and fecal samples were immediately frozen in liquid nitrogen until RNA isolation. A real-time quantitative PCR analysis was performed using a single standard curve composited of equal amounts of all samples, including cDNA from fecal and GI tract tissues. The mRNA expression of the tight junctions TJP1, CLDN1, and CLDN4 was greater in fecal RNA compared with lower GI tract tissues (i.e., duodenum, jejunum, ileum, large intestine, and cecum). Similar to fecal RNA, rumen tissue had greater expression of tight junctions CLDN1 and CLDN4 than lower GI tract tissues. Similarly, rumen tissue had greater expression of TPJ1 than all lower GI tract tissues except duodenum. The expression of TJP1 and CLDN4 was greater in fecal RNA than in rumen tissue; in contrast, CLDN1 mRNA expression was greater in rumen tissue than in the fecal RNA. The expression of FABP2 was greater in duodenum in comparison to all tissue except ileum. The mRNA expression of FABP2 in fecal samples was similar to jejunum and ileum. The expression of KRT8 in fecal samples was similar to duodenum, large intestine, and cecum. The fecal RNA had a greater expression of KRT8 in comparison to jejunum and ileum. The rumen tissue had the lowest mRNA expression of KRT8. The expression levels of FABP2, KRT8, and tight junction genes observed in fecal transcripts suggest that a considerable amount of RNA derived from GI tract epithelial cells can be detected in fecal RNA, which is in agreement with previous data in neonatal dairy calves and other biological models including humans, rodents, and primates. The greater expression of tight junctions in fecal RNA in comparison to sections of the low GI remains to be understood, and due to the importance of tight junctions in GI physiology, further clarification of this effect is warranted. The similarities in mRNA expression of FABP2 and KRT8 between fecal RNA and intestinal sections add up to the accumulating evidence that fecal RNA can be used to investigate molecular alterations in the GI tract of neonatal dairy calves. Further research in this area should include high-throughput transcriptomic analysis via RNA-seq to uncover novel molecular markers for specific sections of the GI tract of neonates.
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Affiliation(s)
- F Rosa
- Dairy and Food Science Department, South Dakota State University, Brookings, 57007
| | - S Busato
- Department of Animal and Rangeland Sciences, Oregon State University, Corvallis, 97331
| | - F C Avaroma
- Department of Animal and Rangeland Sciences, Oregon State University, Corvallis, 97331
| | - R Mohan
- Dairy and Food Science Department, South Dakota State University, Brookings, 57007
| | - N Carpinelli
- Dairy and Food Science Department, South Dakota State University, Brookings, 57007
| | - M Bionaz
- Department of Animal and Rangeland Sciences, Oregon State University, Corvallis, 97331
| | - J S Osorio
- Dairy and Food Science Department, South Dakota State University, Brookings, 57007.
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Palma G, Monti S, Stanzione A, Xu T, Durante M, Mohan R, Liao Z, Cella L. Disentangling Contributions from Heart and Lung Anatomical Substructures to Radiation Induced Toxicities: Characterization of Spatial Properties of Dosimetric Data for Voxel-Based Analyses. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Cella L, Monti S, Xu T, Liuzzi R, Durante M, Mohan R, Liao Z, Palma G. Pericardial Effusion and Mortality in Patients Treated with Photons and Protons for Locally Advanced Non-small-cell lung Cancer: The Voxel-based Perspective. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Engeseth G, He R, Mirkovic D, Yepes P, Stokkevag C, Pettersen H, Wahid K, Adair A, Wu R, Zhang X, Mohamed A, Fuller C, Frank S, Mohan R, Gunn G. PD-0178: NTCP model development and comparison for brain image changes after IMPT for head and neck cancer. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00202-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Vassiliev O, Wang H, Peterson C, Chang J, Mohan R. Improving the Therapeutic Ratio for Lung SBRT Through the Use of Flattening Filter-Free Beams. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Palma G, Monti S, Conson M, Xu T, Hahn S, Durante M, Mohan R, Liao Z, Cella L. PH-0285: NTCP models for severe radiation induced dermatitis after thoracic radiation therapy. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00309-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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33
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Toussaint L, Eskildsen S, Casares-Magaz O, Stokkevåg C, Lassen-Ramshad Y, Hasle H, Tofting-Olesen K, Grosshans D, Mohan R, Høyer M, Muren L. PO-1721: A voxel-based method to quantify longitudinal MRI changes after pediatric brain irradiation. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01739-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Balakrishnan KR, Sureshrao KG, Ravikumar R, Muralikrishna T, Ganapathy Subramaniam K, Mohan R, Ajay A, Ramasubramanian K, Jagdish D, Veena R. Medium term results following heart transplantation for end stage heart failure: A single center experience of 257 patients. Indian Heart J 2020; 72:524-534. [PMID: 33357640 PMCID: PMC7772589 DOI: 10.1016/j.ihj.2020.09.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 05/11/2020] [Revised: 07/22/2020] [Accepted: 09/10/2020] [Indexed: 10/27/2022] Open
Abstract
OBJECTIVE End stage heart failure is a lethal disease with a dismal 5 year survival. Heart transplantation has proven to be a highly effective modality of treatment in appropriately selected group of such patients. This is a retrospective analysis of medium term outcomes of heart transplantation in the setting of a private health facility in India. The objective of this study was two fold. METHODS The outcome of 257 heart transplants done at a single centre from October 2012 to October 2019 was analyzed. Patients with combined Heart and lung transplants and those whose complete medical records were unavailable were excluded from the study. Survival was tracked at 60 days, 90 days, one year and beyond for a maximum of 7 years. Preoperative patient risk profiles were characterized on the basis of INTERMACS category. RESULTS There were 176 male and 81 female patients. The age range was from 8 months to 78 years with a mean of 32.9 years. Survival at 2 months was 87%, at 90 days was 83%, at one year was 81%, 2 years was 75%, at 3 years was 72% and at 5 years and beyond was 62% for the whole series. Strong predictors of 90 day mortality included INTERMACS category (odd's ratio 0.289, p = 0.000) and creatinine more than 1.5 mg/dl (odd's ratio 2.48, p = 0.056). Recipient pulmonary vascular resistance and donor organ ischemic times were not found to be statistically significant factors affecting outcome. Medium term survival was influenced by INTERMACS category (Hazard ratio > 3 for INTERMACS category 1 compared to INTERMACS 4 or 5, p < 0.0001) and creatinine > 1.5 mg/dl (Hazard ratio 2.15, p = 0.003). This effect of creatinine was related to the age of the recipient. Hazard ratio 1.4, p = 0.524 if age <30 and Hazard ratio 4.78, p = 0.006, if age was >50. CONCLUSION Satisfactory medium term outcome is possible after heart transplantation even in resource constrained environment of a developing country.
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Affiliation(s)
- K R Balakrishnan
- Department of Heart and Lung Transplantation, MGM Hospital, 72, Nelson Manickam Road, Aminjikarai, Chennai, 600029, India
| | - K G Sureshrao
- Department of Heart and Lung Transplantation, MGM Hospital, 72, Nelson Manickam Road, Aminjikarai, Chennai, 600029, India
| | - R Ravikumar
- Department of Heart and Lung Transplantation, MGM Hospital, 72, Nelson Manickam Road, Aminjikarai, Chennai, 600029, India.
| | - T Muralikrishna
- Department of Heart and Lung Transplantation, MGM Hospital, 72, Nelson Manickam Road, Aminjikarai, Chennai, 600029, India
| | - K Ganapathy Subramaniam
- Department of Heart and Lung Transplantation, MGM Hospital, 72, Nelson Manickam Road, Aminjikarai, Chennai, 600029, India
| | - R Mohan
- Department of Heart and Lung Transplantation, MGM Hospital, 72, Nelson Manickam Road, Aminjikarai, Chennai, 600029, India
| | - A Ajay
- Department of Heart and Lung Transplantation, MGM Hospital, 72, Nelson Manickam Road, Aminjikarai, Chennai, 600029, India
| | - K Ramasubramanian
- Department of Heart and Lung Transplantation, MGM Hospital, 72, Nelson Manickam Road, Aminjikarai, Chennai, 600029, India
| | - D Jagdish
- Department of Heart and Lung Transplantation, MGM Hospital, 72, Nelson Manickam Road, Aminjikarai, Chennai, 600029, India
| | - R Veena
- Department of Heart and Lung Transplantation, MGM Hospital, 72, Nelson Manickam Road, Aminjikarai, Chennai, 600029, India
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Abstract
Deprojection of an overprojected nose and correction of an infralobular deformity are very challenging for rhinoplasty surgeons because a systematic approach is needed to correct these problems. A deviated nose with a dorsal hump is a common deformity that is best treated using septal reconstruction and the component dorsal hump reduction technique using an open rhinoplasty approach. This article and its videos show how to correct a deviated nose with overprojection and a dorsal hump deformity.
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Affiliation(s)
- Rod J Rohrich
- From the Dallas Plastic Surgery Institute and the Department of Plastic Surgery, Ganga Hospital
| | - R Raja Shanmugakrishnan
- From the Dallas Plastic Surgery Institute and the Department of Plastic Surgery, Ganga Hospital
| | - Raja Mohan
- From the Dallas Plastic Surgery Institute and the Department of Plastic Surgery, Ganga Hospital
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Abstract
With a growing massive weight loss population, upper arm contouring continues to rise in popularity. Refinements in technique, such as modification of skin excision patterns and the adjunct use of liposuction, have allowed for safe and reproducible results. This article helps to understand the evolution of upper arm contouring and provides an update on the limited-incision medial brachioplasty. Details of preoperative markings and operative technique are clearly illustrated in the video included.
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Affiliation(s)
| | - Raja Mohan
- From the Dallas Plastic Surgery Institute
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Abstract
Male rhinoplasty is unique in that it requires precise preoperative planning to achieve a successful result. Better communication and clarity are paramount with male rhinoplasty patients because the patients may be less attentive. It is important for the surgeon to screen the patients for any psychosocial disorders. Through a series of cases, male rhinoplasty techniques are highlighted. Masculine features should be preserved, and the nose should not be feminized or oversculpted. Another key component in any rhinoplasty case is proper skin care, especially during the postoperative period. CLINICAL QUESTION/LEVEL OF EVIDENCE:: Therapeutic, V.
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Affiliation(s)
| | - Raja Mohan
- From the Dallas Plastic Surgery Institute
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Govindan K, Suresh AK, Sakthivel T, Murugesan K, Mohan R, Gunasekaran V, Jang A. Effect of peroxomonosulfate, peroxodisulfate and hydrogen peroxide on graphene oxide photocatalytic performances in methyl orange dye degradation. Chemosphere 2019; 237:124479. [PMID: 31400739 DOI: 10.1016/j.chemosphere.2019.124479] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 06/30/2019] [Accepted: 07/28/2019] [Indexed: 06/10/2023]
Abstract
Carbocatalyst GO photocatalytic mechanism and performances in the presence of an electron scavenger (ES) has been consciously discussed herein. Single layer GO photocatalyst has been synthesized by Hummer's method and photocatalyst characteristics are gathered by different analytical methods. Studies ensured the formation of a good crystalline GO that contains number of oxygenated functional groups, with average crystalline size of the sp2 domain in 18.24 nm. Optical studies suggest that optical band gap of the GO nanosheet photocatalyst is found in the range of 3.19-4.4 eV. TEM analysis confirms the formation of a single layer GO nanosheet. Photocatalytic study justifies that in the absence of ES, 24% mineralization efficiency is achieved with GO as a photocatalyst, whereas in the presence of ES such as PMS, PDS and HP the mineralization efficiency is considerably enhanced up to 91%, 77% and 65% respectively. Moreover, photocatalytic degradation intermediate byproducts were also examined through LC-MS analysis. The study substantiates methyl orange dye degradation undergoes via the multiple degradation pathway such as (i) azo bond cleavage and hydroxylation, (ii), asymmetric cleavage followed by reduction of sulfonate group and aromatic ring removal and (iii) consecutive demethylation reactions and sulfonate group removal. Rationalized the contributing effects of process parameters towards the photocatalytic degradation of methyl orange using a RSM based on CCD validation. The validation reveals that most significant process parameter affects degradation process are the irradiation time, catalyst loading and choice of ES.
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Affiliation(s)
- Kadarkarai Govindan
- SWAT Laboratory, Graduate School of Water Resources, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do, 16419, Republic of Korea.
| | - A K Suresh
- Department of Chemical Engineering and Material Science, Amrita School of Engineering Coimbatore, Amrita Vishwa Vidyapeetham, Coimbatore, 641 112, India
| | - Thangavel Sakthivel
- Key Lab of Advanced Transducers and Intelligent Control System, Taiyuan University of Technology, Taiyuan, 030024, PR China
| | - Kalpana Murugesan
- Department of Nano Science and Technology, Tamil Nadu Agricultural University (TNAU), Tamil Nadu, India
| | - Raja Mohan
- Department of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore, 641 114, India
| | - Venugopal Gunasekaran
- Department of Material Science, School of Technology, Central University of Tamil Nadu, Thiruvarur, 610 005, Tamil Nadu, India
| | - Am Jang
- SWAT Laboratory, Graduate School of Water Resources, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do, 16419, Republic of Korea.
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40
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Lin S, Hobbs B, Thall P, Tidwell R, Wei X, Komaki R, Chang J, Chun S, Jeter M, Hahn S, Swisher S, Ajani J, Murphy M, Vaporciyan A, Mehran R, Koong A, Gandhi S, Hofstetter W, Liao Z, Mohan R. Results of a Phase II Randomized Trial of Proton Beam Therapy vs Intensity Modulated Radiation Therapy in Esophageal Cancer. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.08.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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41
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Moningi S, Nguyen Q, Lin S, Jeter M, O'Reilly M, Chang J, Chen A, Allen P, Lu C, Tsao A, Mohan R, Liao Z. Phase II Trial of Intensity-Modulated Photon or Scanning Beam Proton Therapy Both with Simultaneous Integrated Boost Dose Escalation to the Gross Tumor Volume with Concurrent Chemotherapy for Stage II/III Non-Small Cell Lung Cancer - Interim Analysis. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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42
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Ajdari A, Shusharina N, Liao Z, Mohan R, Bortfeld T. Mid-Treatment [18]F-FDG PET Uptakes Can Predict Symptomatic Radiation Pneumonitis in Non-Small Cell Lung Cancer Patients. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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43
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Palma G, Conson M, Xu T, Hahn S, Durante M, Mohan R, Liao Z, Cella L. Severe Radiation Induced Dermatitis after IMRT or Proton Therapy for Thoracic Cancer Patients. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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44
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Mohan R, Paulose R. Fabrication and Characterization of Flexible Cotton Fabric/Carbon Nanotubes/MnO₂ Nanocomposite-Based Electrodes for Energy Storage Application. J Nanosci Nanotechnol 2019; 19:4611-4616. [PMID: 30913756 DOI: 10.1166/jnn.2019.16369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Flexible cotton fabric based electrodes were fabricated using multi-walled carbon nanotubes (MWCNTs) and manganese dioxide (MnO₂) nanocomposite which was prepared using wet chemical synthesis. Characterization of CNT/MnO₂ nanocomposite was done by Transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photon spectroscopy (XPS), Raman spectroscopy and BET analysis. Their electrochemical properties were investigated using three electrode systems. The high specific capacitance of 634.35 F/g was obtained for the nanocomposite coated cotton fabric prepared via dipping method. The high capacitance was attributed to its high specific surface area 678.9 m₂/g. The electrode exhibited high cyclic performance showing retention of 84% of its initial capacity in 0.5 M sodium sulphate (Na₂SO₄) solution. The demonstrated high specific capacitance of CNT/MnO₂ nanocomposite makes it a promising electrode material for energy storage applications due to its low cost and flexibility.
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Affiliation(s)
- Raja Mohan
- Centre for Advanced Materials Research, School of Engineering and Technology, Jagran Lakecity University, Mugaliyachap, Bhopal 462044, Madhya Pradesh, India
| | - Rini Paulose
- Centre for Advanced Materials Research, School of Engineering and Technology, Jagran Lakecity University, Mugaliyachap, Bhopal 462044, Madhya Pradesh, India
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Skaarup M, Appelt A, Lundemann M, Darkner S, Jørgensen M, Thomsen C, Law I, Mirkovic D, Mohan R, Grosshans D, Peeler C, Vogelius I. EP-1919 Voxel-based assessment of proton RBE in paediatric brain cancer radiotherapy from multimodal imaging. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)32339-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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46
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Van Rossum P, Deng W, Routman D, Liu A, Xu C, Shiraishi Y, Peters M, Merrell K, Hallemeier C, Mohan R, Lin S. PO-0795 Prediction of severe lymphopenia during chemoradiotherapy for esophageal cancer. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31215-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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47
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Khedraki R, Vanichsarn C, Moitoza A, Mohan R, Heywood J, Srivastava A. Aspirin: Therapy or Trouble for LVAD Patients? J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.1077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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48
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Ellsworth S, Mereniuk T, Zhang H, Grossman S, O'Neil B, Hobbs R, Shahda S, Mohan R, Kong F, Jin J. Kinetics and Dosimetric Predictors of Acute Radiation-Induced Lymphopenia in Pancreatic Cancer. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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49
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Wei X, Xu T, Allen P, Zhou R, Yang J, Yang P, Luo Y, Liu A, Mohan R, Liao Z. Low Radiation Therapy Dose of Cardiac and Descending Aorta are Associated with the Worst Grade of Radiation-Induced Lymphopenia in Locally Advanced Non-Small Cell Lung Cancer (NSCLC). Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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50
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Deng W, Xu C, Liu A, Liao Z, Mohan R, Lin S. Lymphocyte Count Recovery after Chemoradiation Therapy Does Not Mitigate the Poor Prognosis of Esophageal Cancer Patients with Severe Radiation Induced Lymphopenia. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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