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Rajarajan K, Verma S, Sahu S, Radhakrishna A, Kumar N, Priyadarshini E, Handa AK, Arunachalam A. Differential gene expression analysis reveals the fast-growth mechanisms in Melia dubia at different stand ages. Mol Biol Rep 2023; 50:10671-10675. [PMID: 37934367 DOI: 10.1007/s11033-023-08873-9] [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: 08/04/2023] [Accepted: 10/02/2023] [Indexed: 11/08/2023]
Abstract
BACKGROUND Melia dubia Cav. is a fast-growing multipurpose tree suitable for agroforestry and has been widely cultivated for wood-based industries, particularly pulp and paper production. Despite its high economic value in India, there is a lack of information regarding the molecular mechanism driving its fast-growth. Therefore, this study aimed to elucidate the molecular mechanisms responsible for fast-growth by expression analysis of selective candidate genes. METHODS AND RESULTS Initially, growth traits were assessed, including tree height and diameter at breast height (DBH), across three different ages (one-year-old, two-year-old, and three-year-old) of M. dubia plantations. Tree volume based on tree height and DBH, was also calculated. The analysis of annual tree height increment revealed that the second-year plantation exhibited the higher increment, followed by first and third years. In contrast, DBH was maximum in third-year plantation, followed by the second and first years. Similarly, annual tree volume increment showed a similar trend with DBH that maximum in the third year, followed by second and first years. Furthermore, a differential gene expression analysis was performed using qRT-PCR on four genes such as Phloem Intercalated with Xylem (PXY), Clavata3/Embryo Surrounding Region-Related 41 (CLE41), 1-aminocyclopropane-1-carboxylic acid synthase (ACS-1) and Hemoglobin1 (Hb1) for downstream analysis. The relative gene expression showed up-regulation of CLE41, ACS-1, and Hb1 genes, while the PXY gene was downregulated across the tree ages. Interestingly, a positive association was observed between tree growth and the expression of the selected candidate genes. CONCLUSION Our results pave the way for further research on the regulatory mechanisms of genes involved in fast-growth and provide a basis for genetic improvement of Melia dubia.
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Affiliation(s)
- K Rajarajan
- ICAR-Central Agroforestry Research Institute, Jhansi, India.
| | - Shailesh Verma
- ICAR-Central Agroforestry Research Institute, Jhansi, India
| | - Sakshi Sahu
- ICAR-Central Agroforestry Research Institute, Jhansi, India
| | - A Radhakrishna
- ICAR-Directorate of Onion and Garlic Research, Pune, India
| | - Naresh Kumar
- ICAR-Central Agroforestry Research Institute, Jhansi, India
| | - E Priyadarshini
- ICAR- Indian Grassland and Fodder Research Institute, Jhansi, India
| | - A K Handa
- ICAR-Central Agroforestry Research Institute, Jhansi, India
| | - A Arunachalam
- ICAR-Central Agroforestry Research Institute, Jhansi, India
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Joudi A, Myers C, Arunachalam A, Subramani MV, Tomic R. A Case of Dual Organ Lung-Kidney Transplant in a Highly Sensitized Patient. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1419] [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: 04/05/2023] Open
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Joudi A, Myers C, Arunachalam A, Subramani MV, Tomic R. A Case of Successful Lung Transplantation Following 10 Months of Mechanical Ventilator Dependence. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1391] [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: 04/05/2023] Open
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Graham K, Reedy E, Arunachalam A, Tomic R, Martin-Harris B. Respiratory-Swallow Coordination in Patients Referred for Lung Transplant Evaluation. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1304] [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: 04/05/2023] Open
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Donington J, Hu X, Zhang S, Song Y, Gao C, Arunachalam A, Chirovsky D, Lerner A, Jiang A, Signorovitch J, Samkari A. 95P Neoadjuvant treatment pattern and association between real-world event-free survival (rwEFS) and overall survival (OS) in patients (pts) with resected early-stage non-small cell lung cancer (eNSCLC). J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00350-7] [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: 04/03/2023]
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6
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Seeburger P, Herdenstam A, Kurtser P, Arunachalam A, Castro-Alves V, Hyötyläinen T, Andreasson H. Controlled mechanical stimuli reveal novel associations between basil metabolism and sensory quality. Food Chem 2023; 404:134545. [DOI: 10.1016/j.foodchem.2022.134545] [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] [Received: 08/19/2022] [Revised: 09/13/2022] [Accepted: 10/05/2022] [Indexed: 11/22/2022]
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Rajarajan K, Sakshi S, Taria S, Prathima PT, Radhakrishna A, Anuragi H, Ashajyothi M, Bharati A, Handa AK, Arunachalam A. Whole plant response of Pongamia pinnata to drought stress tolerance revealed by morpho-physiological, biochemical and transcriptome analysis. Mol Biol Rep 2022; 49:9453-9463. [PMID: 36057878 DOI: 10.1007/s11033-022-07808-0] [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: 03/28/2022] [Revised: 07/16/2022] [Accepted: 07/19/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Pongamia is considered an important biofuel species worldwide. Drought stress in the early growth stages of Pongamia influences negatively on the germination and seedling development. Due to lack of cultivar stability under drought stress conditions, establishment of successful plantation in drought hit areas becomes a major problem. To address this issue, drought stress response of four Pongamia genotypes was studied at morphological, physio-chemical and transcriptome levels. METHODS AND RESULTS Drought stress was levied by limiting water for 15 days on three months old seedlings of four genotypes. A significant effect of water stress was observed on the traits considered. The genotype NRCP25 exhibited superior morpho-physiological, biochemical drought responses. Also, the genotype had higher root length, photosynthetic pigments, higher antioxidant enzymes and solute accumulation compared to other genotypes. In addition, transcript profiling of selected drought responsive candidate genes such as trehalose phosphate synthase 1 (TPS1), abscisic acid responsive elements-binding protein 2 (ABF2-2), heat shock protein 17 (HSP 17 kDa), tonoplast intrinsic protein 1 (TIP 1-2), zinc finger homeodomain protein 2 (ZFP 2), and xyloglucan endotransglucolase 13 (XET 13) showed only up-regulation in NRCP25. Further, the transcriptome responses are in line with key physio-chemical responses exhibited by NRCP25 for drought tolerance. CONCLUSIONS As of now, there are no systematic studies on Pongamia drought stress tolerance; therefore this study offers a comprehensive understanding of whole plant drought stress responsiveness of Pongamia. Moreover, the results support important putative trait indices with potential candidate genes for drought tolerance improvement of Pongamia.
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Affiliation(s)
- K Rajarajan
- ICAR-Central Agroforestry Research Institute, Jhansi, Uttar Pradesh, India.
| | - S Sakshi
- ICAR-Central Agroforestry Research Institute, Jhansi, Uttar Pradesh, India
| | - S Taria
- ICAR-Central Agroforestry Research Institute, Jhansi, Uttar Pradesh, India
| | - P T Prathima
- Sugarcane Breeding Institute, Coimbatore, Coimbatore, Tamilnadu, India
| | - A Radhakrishna
- Indian Grassland and Fodder Research Institute, Jhansi, Uttar Pradesh, India
| | - H Anuragi
- ICAR-Central Agroforestry Research Institute, Jhansi, Uttar Pradesh, India
| | - M Ashajyothi
- ICAR-Central Agroforestry Research Institute, Jhansi, Uttar Pradesh, India
| | - A Bharati
- ICAR-Central Agroforestry Research Institute, Jhansi, Uttar Pradesh, India
| | - A K Handa
- ICAR-Central Agroforestry Research Institute, Jhansi, Uttar Pradesh, India
| | - A Arunachalam
- ICAR-Central Agroforestry Research Institute, Jhansi, Uttar Pradesh, India
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Bani T, Deuri M, Wangpan T, Tangjang S, Arunachalam A. Tradition In Transition: The Transformation of Traditional Agriculture in Arunachal Pradesh, North East India. CURR SCI INDIA 2022. [DOI: 10.18520/cs/v123/i2/220-225] [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: 11/15/2022]
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Collins M, Tomic R, Myers C, O'Boye A, Brakman E, Perottino G, Arunachalam A. Malnutrition in Lung Transplant Recipients: Weighing the Outcomes. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1578] [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] Open
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10
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Perottino G, Patel P, O'Boye A, Pesce L, Tomic R, Arunachalam A, Myers C. Neutropenia and Outcomes in Lung Transplant Recipients. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.776] [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] Open
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11
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Zu K, Arunachalam A, Macdonald S, Wang Y, Wells K, Oliveria S, Pietanza M. P63.05 Treatment Pattern in Small Cell Lung Cancer: A Real-world Observational Study in the Era of Immune Checkpoint Inhibitors. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.661] [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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12
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Zu K, Arunachalam A, Hohlbauch A, Silver M, Annavarapu S, Pietanza M. P63.08 Real-World Utilization of Immune Checkpoint Inhibitors in Extensive Stage Small Cell Lung Cancer in Community Settings. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.664] [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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13
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Apter L, Moser SS, Arunachalam A, Burke T, Shalev V, Chodick G, Siegelmann-Danieli N. P09.39 PD-L1 Testing Patterns and Treatment in Patients With Metastatic Non-Small Cell Lung Cancer in Israel – Analysis of Real-World Data. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.467] [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: 10/21/2022]
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Roy SS, Ansari MA, Sharma SK, Sailo B, Basudha Devi C, Singh IM, Das A, Chakraborty D, Arunachalam A, Prakash N, Ngachan SV. Climate Resilient Agriculture in Manipur:Status and Strategies for Sustainable Development. CURR SCI INDIA 2018. [DOI: 10.18520/cs/v115/i7/1342-1350] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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15
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Narasimhaiah M, Arunachalam A, Sellappan S, Mayasula VK, Guvvala PR, Ghosh SK, Chandra V, Ghosh J, Kumar H. Organic zinc and copper supplementation on antioxidant protective mechanism and their correlation with sperm functional characteristics in goats. Reprod Domest Anim 2018; 53:644-654. [PMID: 29450923 DOI: 10.1111/rda.13154] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [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: 08/11/2017] [Accepted: 01/12/2018] [Indexed: 11/29/2022]
Abstract
Trace minerals feeding had significant effects on sperm production and fertility with better absorption and proper utilization within the body for optimum reproductive function. Several studies have shown that more influenced trace elements in the diets of animals are copper (Cu) and zinc (Zn). Bucks showing deficiency of this mineral might affect the quality of semen production which in turn would affect the fertility. This experiment was thus designed to test the effects of organic Cu and Zn supplementation on antioxidants enzyme activities and sperm functional attributes in fresh semen of bucks. Forty bucks (n = 40, Aged 5 months) were assigned to ten groups of four animals in each group, supplemented (for a period of 8 months) with different levels of organic Zn: 20 mg (T2), 40 mg (T3) and 60 mg (T4), organic Cu: 12.5 mg (T5), 25 mg (T6), 37.5 mg (T7) and combined organic Zn and Cu: 20 + 12.5 mg (T8), 40 + 25 mg (T9), 60 + 37.5 mg (T10), respectively, per kg dry matter and no additional mineral diet (control; T1). One hundred and sixty semen samples were collected through electro-ejaculator and analysed for sperm quantity, quality, acrosome intactness and plasma membrane integrity and correlated with the catalase, superoxide dismutase, glutathione peroxidase and glutathione reductase enzyme activities in seminal plasma. The results indicated organic Cu and zinc supplemented bucks produced more sperm cells, had higher sperm concentrations, maintained higher (p < .01) sperm livability, plasma membrane and acrosome integrities, more motility and velocity. The increased antioxidant enzyme activities, reduced oxidative stress and lowered lipid peroxidation were positively correlated (p < .05) with the sperm functional attributes. In conclusion, organic Cu and Zn supplement to male goats showed protective roles against oxidative damage and maintained better fresh semen characteristics.
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Affiliation(s)
- M Narasimhaiah
- Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India.,Animal Reproduction Division, ICAR-Indian Veterinary Research Institute, Bareilly, India
| | - A Arunachalam
- Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - S Sellappan
- Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - V K Mayasula
- Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - P R Guvvala
- Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - S K Ghosh
- Animal Reproduction Division, ICAR-Indian Veterinary Research Institute, Bareilly, India
| | - V Chandra
- Animal Physiology Division, ICAR-Indian Veterinary Research Institute, Bareilly, India
| | - J Ghosh
- Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - H Kumar
- Animal Reproduction Division, ICAR-Indian Veterinary Research Institute, Bareilly, India
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de Castro J, Tagliaferri P, de Lima VCC, Ng S, Thomas M, Arunachalam A, Cao X, Kothari S, Burke T, Myeong H, Grattan A, Lee DH. Systemic therapy treatment patterns in patients with advanced non-small cell lung cancer (NSCLC): PIvOTAL study. Eur J Cancer Care (Engl) 2017; 26. [PMID: 28748556 PMCID: PMC5697695 DOI: 10.1111/ecc.12734] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [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] [Accepted: 06/01/2017] [Indexed: 12/21/2022]
Abstract
The aim of this multinational retrospective cohort study, conducted at academic and community oncology centres, was to describe real‐world treatment patterns for patients with a confirmed diagnosis of advanced/metastatic (stage IIIB/IV) non‐small cell lung cancer (NSCLC) who initiated first‐line systemic therapy from January 2011 through June 2014. The study included 1265 patients in Italy, Spain, Germany, Australia, Korea, Taiwan and Brazil. The proportion of patients with squamous versus non‐squamous NSCLC was approximately 20% versus 75%, and associated patient demographic characteristics were similar in all countries, excepting race. Patients with squamous NSCLC were predominantly male and current/ex‐smokers. Biomarker tests were performed for the majority of patients with non‐squamous NSCLC, ranging from 54% (Brazil) to 91% in Taiwan, where, of those tested, 68% with non‐squamous NSCLC had positive epidermal growth factor receptor (EGFR)‐mutation status; in other countries the EGFR‐positive percentages ranged from 17% (Spain/Brazil) to 40% (Korea). Platinum‐based regimens were the most common first‐line therapy in all countries except Taiwan, where gefitinib was the most common first‐line agent. Median overall survival ranged from 9.3 months (Brazil) to 25.5 months (Taiwan). The diagnostic and treatment patterns recorded in this study were heterogeneous but largely in line with NSCLC guidelines during the study period.
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Affiliation(s)
- J de Castro
- Medical Oncology Service, Hospital Universitario La Paz (IDIPAZ), Madrid, Spain
| | - P Tagliaferri
- Azienda Ospedaliero Universitaria Mater Domini, Catanzaro, Italy.,Dipartimento di Medicina Sperimentale e Clinica, Magna Graecia University, Catanzaro, Italy
| | - V C C de Lima
- Department of Medical Oncology, A. C. Camargo Cancer Center, São Paulo, Brazil
| | - S Ng
- Bendigo Cancer Centre, Bendigo Health, Bendigo, Vic., Australia
| | - M Thomas
- Internistische Onkologie der Thoraxtumoren, Thoraxklinik im Universitätsklinikum Heidelberg, Translational Lung Research Center Heidelberg (TLRC-H), Member of the German Center for Lung Research (DZL), Heidelberg, Germany
| | - A Arunachalam
- Center for Observational and Real World Evidence (CORE), Merck & Co., Inc., Rahway, NJ, USA
| | - X Cao
- Center for Observational and Real World Evidence (CORE), Merck & Co., Inc., Rahway, NJ, USA
| | - S Kothari
- Center for Observational and Real World Evidence (CORE), Merck & Co., Inc., Rahway, NJ, USA
| | - T Burke
- Center for Observational and Real World Evidence (CORE), Merck & Co., Inc., Rahway, NJ, USA
| | - H Myeong
- Oncology Global Medical Affairs, MSD Korea, Seoul, Korea
| | - A Grattan
- MSD Australia, Macquarie Park, NSW, Australia
| | - D H Lee
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
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Arunachalam A, Dhanapandian S, Manoharan C, Sridhar R. Characterization of sprayed TiO2 on ITO substrates for solar cell applications. Spectrochim Acta A Mol Biomol Spectrosc 2015; 149:904-912. [PMID: 26004100 DOI: 10.1016/j.saa.2015.05.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 04/28/2015] [Accepted: 05/04/2015] [Indexed: 06/04/2023]
Abstract
Titanium dioxide (TiO2) thin films had been deposited with various substrate temperatures by spray pyrolysis technique onto ITO substrates. All films exhibited polycrystalline nature with the preferred orientation along (101) plane. At the substrate temperature 450 °C, the film favored the formation of anatase phase. The higher substrate temperature (475 °C) favored the appearance of rutile structure. The SEM image of the film at substrate temperature (Ts=450 °C) showed high structural quality with the porous nature. The typical AFM image of TiO2 film deposited at the substrate temperature, 450 °C depicted the regular arrangement of fine closely packed tetragonal structured grains. The transmittance of the spectra exhibited above 85% with energy band gap of 3.6 eV. From the study of photoluminescence, the emission at 417 nm, 437 nm and with weak emission at 551 nm was observed, which confirmed the lesser defects in the samples. The electrical resistivity was found to be 6.856×10(1) Ω cm for the substrate temperature 450 °C. The efficiency of anatase TiO2 photoelectrode deposited at the substrate temperature 450 °C based cell was much higher than the efficiency of TiO2 photoelectrode deposited at the substrate temperature 475 °C based cell.
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Affiliation(s)
- A Arunachalam
- Department of Physics, Annamalai University, Annamalai Nagar 608 002, Tamilnadu, India
| | - S Dhanapandian
- Department of Physics, Annamalai University, Annamalai Nagar 608 002, Tamilnadu, India.
| | - C Manoharan
- Department of Physics, Annamalai University, Annamalai Nagar 608 002, Tamilnadu, India
| | - R Sridhar
- Department of Physics, Annamalai University, Annamalai Nagar 608 002, Tamilnadu, India
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Dhanapandian S, Arunachalam A, Manoharan C. Highly oriented and physical properties of sprayed anatase Sn-doped TiO2 thin films with an enhanced antibacterial activity. Appl Nanosci 2015. [DOI: 10.1007/s13204-015-0450-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Arunachalam A, Dhanapandian S, Manoharan C, Sivakumar G. Physical properties of Zn doped TiO2 thin films with spray pyrolysis technique and its effects in antibacterial activity. Spectrochim Acta A Mol Biomol Spectrosc 2015; 138:105-112. [PMID: 25479105 DOI: 10.1016/j.saa.2014.11.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [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: 08/28/2014] [Revised: 10/29/2014] [Accepted: 11/05/2014] [Indexed: 06/04/2023]
Abstract
Zinc doped Titanium dioxide (TiO2: Zn) thin films were deposited onto glass substrates by the spray pyrolysis technique with the substrate temperature 450°C. The structural, optical, photoluminescence (PL) properties and morphological studies were investigated for the films deposited with various doping concentration (0, 2, 4, 6 and 8at.%) of zinc. The results of X-ray diffraction (XRD) had shown the presence of anatase peak with a strong orientation along (101) plane at 8at.% of Zn-doped TiO2 film. Scanning electron microscopy (SEM) study showed the uniform distribution of grains with porous nature. Atomic force microscopy (AFM) observations indicated the tetragonal shape at 8at.% of Zn-doped TiO2 with the particle size and decrease in surface roughness. The emission at 398nm was observed at the 8at.% of Zn-doped TiO2 thin film. The carrier concentration and Hall mobility was increased with doping. The antibacterial activity was highly yielded for the Zn-doped TiO2 thin films.
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Affiliation(s)
- A Arunachalam
- Department of Physics, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India
| | - S Dhanapandian
- Department of Physics, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India
| | - C Manoharan
- Department of Physics, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India
| | - G Sivakumar
- Centralised Instrumentation and Service Laboratory (CISL), Department of Physics, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India
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Aloia JF, Mikhail M, Pagan CD, Arunachalam A, Yeh JK, Flaster E. Biochemical and hormonal variables in black and white women matched for age and weight. J Lab Clin Med 1998; 132:383-9. [PMID: 9823932 DOI: 10.1016/s0022-2143(98)90109-3] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Weight and age may influence the levels of indexes of bone remodeling and the calciotropic hormones. In a study of interracial differences in these women, our black population was heavier than our white population. We therefore matched a subset of 96 black and 96 white women from our larger population for age and weight to determine whether a racial difference exists independent of the effects of weight and age. In addition, we were able to measure other indexes of bone remodeling (N-telopeptide of cross-linked collagen and pyridinoline cross-links), as well as hormones that may influence calcium metabolism (insulin-like growth factor-1 (IGF-1), insulin, calcitonin, and gastrin) in this subset. All indexes of bone remodeling were lower in black women. Black postmenopausal women had lower serum levels of calcidiol and higher parathyroid hormone (PTH) levels. The higher bone mass of black women is associated with lower bone remodeling in the presence of skeletal resistance to PTH. Serum IGF- 1, insulin, and calcitonin levels did not differ significantly between races. Serum gastrin levels were higher in black women. The higher levels of gastrin in black women should be investigated further for its possible effect on the absorption of calcium salts.
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Affiliation(s)
- J F Aloia
- Department of Medicine, Winthrop-University Hospital, Mineola, New York 11501, USA
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