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Dash PP, Mohanty P, Behura R, Behera S, Naik S, Mishra M, Sahoo H, Barick AK, Mohapatra P, Sahoo SK, Jali BR. Rapid Colorimetric and Fluorometric Discrimination of Maleic Acid vs. Fumaric Acid and Detection of Maleic Acid in Food Additives. J Fluoresc 2024; 34:1015-1024. [PMID: 37439921 DOI: 10.1007/s10895-023-03330-z] [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: 06/07/2023] [Accepted: 06/27/2023] [Indexed: 07/14/2023]
Abstract
An anthracene thiazole based Schiff base L was synthesized and employed for fluorescence switch-on detection of maleic acid in aqueous DMSO. The non-fluorescent L (10-5 M) showed an instantaneous and selective fluorescence enhancement at 506 nm upon interaction with maleic acid (10-5 M). Other potential carboxylic acids (10-5 M), such as malic acid, citric acid, acetic acid, cinnamic acid, tartaric acid, succinic acid, fumaric acid, oxalic acid and malonic acid failed to alter the chromo-fluorogenic properties of L. Probe L can be employed to detect maleic acid down to 2.74 × 10-6 M. The probe L showed good linearity from 2.97 to 6.87 µM. Analytical utility of L was examined by detecting maleic acid in various food additives and drosophila larvae.
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Affiliation(s)
- Pragyan P Dash
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur-768018, Odisha, India
| | - P Mohanty
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur-768018, Odisha, India
| | - R Behura
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur-768018, Odisha, India
| | - S Behera
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur-768018, Odisha, India
| | - S Naik
- Department of Life Science, National Institute of Technology, 769008, Rourkela, India
| | - M Mishra
- Department of Life Science, National Institute of Technology, 769008, Rourkela, India
| | - H Sahoo
- Department of Chemistry, National Institute of Technology, 769008, Rourkela, India
| | - Aruna K Barick
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur-768018, Odisha, India
| | - P Mohapatra
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur-768018, Odisha, India
| | - Suban K Sahoo
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, 395007, Surat, Gujarat, India
| | - Bigyan R Jali
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur-768018, Odisha, India.
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Paikaray R, Badapanda T, Richhariya T, Behera S, Tripathy SN. Analysis of Structural, Photoluminescence, and Colorimetric Performance of Gd-Incorporated BNT Ceramic. J Fluoresc 2023:10.1007/s10895-023-03544-1. [PMID: 38141145 DOI: 10.1007/s10895-023-03544-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023]
Abstract
Structural, optical, photoluminescence and colorimetric analyses of Gd (1-5 mol %) doped BNT ceramics synthesized by the solid-state reaction technique are reported. Structural analyses of all the samples are done by the X-ray diffraction method. It is shown that the samples have rhombohedral crystal structures with an R3C space group. The energy band gap of all the phosphors is computed from the UV-visible absorbance spectra. Photoluminescence behaviors are analyzed from the excitation along with the emission spectra of the prepared materials. The critical quenching concentration with the critical energy transfer distance is observed owing to the dipole-dipole interactions between the materials. Colorimetric analyses are carried out with the help of CIE chromaticity. Moreover, the color purity, correlated color temperature, color rendering index, and luminous efficiency of radiation values are evaluated by using the chromaticity coordinates.
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Affiliation(s)
- R Paikaray
- Department of Physics, C.V. Raman Global University, Bhubaneswar, Odisha, 752054, India
| | - T Badapanda
- Department of Physics, C.V. Raman Global University, Bhubaneswar, Odisha, 752054, India.
| | - T Richhariya
- Department of Physics, Kalinga University, Raipur, Chhattisgarh, 492101, India
| | - S Behera
- Department of Physics, Centurion University of Technology and Management, Odisha, 752050, India
| | - Satya N Tripathy
- Department of Physics, Government Autonomous College, Angul, Odisha, 759143, India
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Behera S, Dash PP, Bishoyi AK, Dash K, Mohanty P, Sahoo CR, Padhy RN, Mishra M, Ghosh BN, Sahoo H, Jali BR. Protein interactions, molecular docking, antimicrobial and antifungal studies of terpyridine ligands. J Biomol Struct Dyn 2023; 41:11274-11285. [PMID: 36562209 DOI: 10.1080/07391102.2022.2161012] [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: 10/01/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
Resistance to antibiotics/antibacterials/antifungals in pathogenic microbes has been developing over the past few decades and has recently become a commonplace public-health peril. Thus, alternative nontoxic potent antibiotic agents are covertly needed to control antibiotic-resistant outbreaks. In an effort to combat the challenges posed by the co-occurrence of multidrug resistance, two terpyridine ligands 4'-(4-N,N'-dimethylaminophenyl)-2,2':6',2″-terpyridine (L1) and 4'-(4-tolyl)-2,2':6',2″-terpyridine (L2) have been designed, prepared and confirmed their structure by spectral studies. Thereafter, antimicrobial assay was performed against gram positive and negative bacterial strains along with fungal strains. Both compounds L1 and L2 exhibited remarkable inhibitory activities against bacteria, Escherichia coli and Staphylococcus aureus at MIC values 6.25 and 3.125 µg/ml, respectively. In addition, in silico molecular docking studies were ascertained with bacterial DNA gyrase and fungal demethylase. Furthermore, both L1 and L2 could bind Bovine Serum Albumin (BSA) protein and binding interaction has been studied with the help of UV-Visible and fluorescence spectroscopy. While fluorescence of BSA unperturbed in the presence of L2, an addition of L1 to the solution of BSA resulted significant quenching. The binding constant calculations at different temperature confirmed that the fluorescence quenching between BSA and L1 is predominantly static in nature. The toxicity of L1 and L2 was checked using Drosophila melanogaster. The toxicity analysis suggest both the dyes are non-cytotoxic in nature.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- S Behera
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Odisha, India
| | - Pragyan P Dash
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Odisha, India
| | - Ajit K Bishoyi
- Central Research Laboratory, Institute of Medical Sciences and SUM Hospital, Siksha 'O' Anusandhan Deemed University, Bhubaneswar, Odisha, India
| | - K Dash
- Department of Life Science, National Institute of Technology, Rourkela, India
| | - P Mohanty
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Odisha, India
| | - Chita R Sahoo
- Central Research Laboratory, Institute of Medical Sciences and SUM Hospital, Siksha 'O' Anusandhan Deemed University, Bhubaneswar, Odisha, India
| | - Rabindra N Padhy
- Central Research Laboratory, Institute of Medical Sciences and SUM Hospital, Siksha 'O' Anusandhan Deemed University, Bhubaneswar, Odisha, India
| | - M Mishra
- Department of Life Science, National Institute of Technology, Rourkela, India
| | - B N Ghosh
- Department of Chemistry, National Institute of Technology, Silchar, India
| | - H Sahoo
- Department of Chemistry, National Institute of Technology, Rourkela, India
| | - B R Jali
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Odisha, India
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Dash PP, Mohanty P, Behera S, Behura R, Palai BB, Nath B, Sahoo SK, Jali BR. Pyrene-based fluorescent chemosensor for rapid detection of water and its applications. Methods 2023; 219:127-138. [PMID: 37832896 DOI: 10.1016/j.ymeth.2023.10.006] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/25/2023] [Accepted: 10/10/2023] [Indexed: 10/15/2023] Open
Abstract
This manuscript introduces a pyrene-based Schiff base L by reacting pyrenecarboxaldehyde with 2-aminothiazole in equimolar ratio. The ligand L was characterized by various spectral data and single crystal. The water sensing ability of L was examined in different organic solvents. The weakly emissive L in DMSO showed a fluorescence enhancement upon the addition of water. The water-induced fluorescence enhancement of L was occurred due to the combined effect of aggregation-induced emission (AIE) phenomenon and suppression of photo-induced electron transfer (PET) process. Using L, the water in DMSO can be detected down to 0.50 wt% with a quantification limit of 1.52 wt%. The analytical novelty of the developed sensor L was validated by detecting moisture in a variety of raw food products.
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Affiliation(s)
- Pragyan P Dash
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur, Odisha 768018, India
| | - P Mohanty
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur, Odisha 768018, India
| | - S Behera
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur, Odisha 768018, India
| | - R Behura
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur, Odisha 768018, India
| | - Bibhuti B Palai
- School of Chemical Science, NISER, Bhubaneswar, Odisha 752050, India
| | - Bhaskar Nath
- Department of Educational Sciences, Assam University Silchar, Cachar, Assam 788011, India
| | - Suban K Sahoo
- Department of Chemistry, SardarVallabhbhai National Institute of Technology, Surat, Gujarat 395007, India.
| | - Bigyan R Jali
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur, Odisha 768018, India.
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Behera S, Behuria S, Moharana JJ, Mohpatra BN, Naik R. Effect of Steroids on the Biophysical Profile and Doppler Indices of Umbilical and Middle Cerebral Arteries in Preterm Fetuses. Cureus 2023; 15:e42334. [PMID: 37621794 PMCID: PMC10445050 DOI: 10.7759/cureus.42334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/21/2023] [Indexed: 08/26/2023] Open
Abstract
Introduction Preterm birth is a major cause of perinatal death and disability and emerges as an important global public health problem. The antenatal administration of corticosteroids for preventing neonatal death due to respiratory distress syndrome and the serious morbidities associated with preterm birth has become an accepted standard in worldwide obstetric practice since 1994. After administering corticosteroids, the biophysical score deteriorates transiently, leading to a high cesarean section rate. Thus, Doppler indices of the umbilical and middle cerebral arteries are taken into account before the termination of pregnancy in preterm labor. Materials and methods This is an interventional study conducted over a period of one year and six months among 59 eligible singleton pregnancies at risk for preterm delivery, i.e., at risk of preterm birth <34 weeks of gestation, having no contraindication to antenatal steroids, who were admitted to the labor room of the Srirama Chandra Bhanja (SCB) Medical College, Cuttack, India, from January 2014 to August 2015. The participants were prospectively recruited, after giving informed consent to participate in the study. The main indication for hospital admission and steroid use was preterm lower abdominal pain. Results Out of 59 eligible cases, 27 (45.8%) were <25 years of age, 26 (44.1%) were between 25 and 30 years of age, and six (10.2%) were >30 years of age. The range is 14 years (between 19 and 33 years). The mean age is 25.31 years, with a standard deviation of 3.74. The mean of the biophysical profile (BPP) score before steroid administration decreased from 9.19 ± 1.23 to 5.56 ± 1.05 after 48 hours of first dose of steroid. The p-value of this is <0.001, which is statistically significant. The results show that the administration of betamethasone decreased fetal movements by 78.6% and breathing by 71.8%. As a result, the BPP scores decreased significantly. However, the Doppler indices did not change significantly even after administering corticosteroids. Conclusion Doppler indices play an important role in differentiating between steroid-induced compromise in the fetus and real fetal distress. Thus, umbilical and middle cerebral artery (MCA) Doppler should always be done before the termination of pregnancy on the ground of fetal compromise after administering corticosteroids.
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Affiliation(s)
- Swayamprava Behera
- Department of Obstetrics and Gynecology, Srirama Chandra Bhanj Medical College & Hospital, Cuttack, IND
| | - Sasmita Behuria
- Department of Obstetrics and Gynecology, Srirama Chandra Bhanj Medical College & Hospital, Cuttack, IND
| | - Jayashree J Moharana
- Department of Obstetrics and Gynecology, Srirama Chandra Bhanj Medical College & Hospital, Cuttack, IND
| | - Biranchi N Mohpatra
- Department of Obstetrics and Gynecology, Srirama Chandra Bhanj Medical College & Hospital, Cuttack, IND
| | - Rabindra Naik
- Department of Obstetrics and Gynecology, Srirama Chandra Bhanj Medical College & Hospital, Cuttack, IND
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Behera S, Belyeu JR, Chen X, Paulin LF, Nguyen NQH, Newman E, Mahmoud M, Menon VK, Qi Q, Joshi P, Marcovina S, Rossi M, Roller E, Han J, Onuchic V, Avery CL, Ballantyne CM, Rodriguez CJ, Kaplan RC, Muzny DM, Metcalf GA, Gibbs R, Yu B, Boerwinkle E, Eberle MA, Sedlazeck FJ. Identification of allele-specific KIV-2 repeats and impact on Lp(a) measurements for cardiovascular disease risk. bioRxiv 2023:2023.04.24.538128. [PMID: 37163057 PMCID: PMC10168217 DOI: 10.1101/2023.04.24.538128] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The abundance of Lp(a) protein holds significant implications for the risk of cardiovascular disease (CVD), which is directly impacted by the copy number (CN) of KIV-2, a 5.5 kbp sub-region. KIV-2 is highly polymorphic in the population and accurate analysis is challenging. In this study, we present the DRAGEN KIV-2 CN caller, which utilizes short reads. Data across 166 WGS show that the caller has high accuracy, compared to optical mapping and can further phase ~50% of the samples. We compared KIV-2 CN numbers to 24 previously postulated KIV-2 relevant SNVs, revealing that many are ineffective predictors of KIV-2 copy number. Population studies, including USA-based cohorts, showed distinct KIV-2 CN, distributions for European-, African-, and Hispanic-American populations and further underscored the limitations of SNV predictors. We demonstrate that the CN estimates correlate significantly with the available Lp(a) protein levels and that phasing is highly important.
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Affiliation(s)
- S Behera
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | | | - X Chen
- Illumina Inc., San Diego, CA, USA
| | - L F Paulin
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - N Q H Nguyen
- School of Public Health, University of Texas Health Science Center at Houston, TX, USA
| | - E Newman
- Illumina Inc., San Diego, CA, USA
| | - M Mahmoud
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - V K Menon
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - Q Qi
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - P Joshi
- Medpace Reference Laboratories, Cincinnati, OH, USA
| | - S Marcovina
- University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - M Rossi
- Illumina Inc., San Diego, CA, USA
| | - E Roller
- Illumina Inc., San Diego, CA, USA
| | - J Han
- Illumina Inc., San Diego, CA, USA
| | | | - C L Avery
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - C M Ballantyne
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - C J Rodriguez
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - R C Kaplan
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
- Fred Hutchinson Cancer Center, Public Health Sciences Division, Seattle WA 98109
| | - D M Muzny
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - G A Metcalf
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - R Gibbs
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - B Yu
- School of Public Health, University of Texas Health Science Center at Houston, TX, USA
| | - E Boerwinkle
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
- School of Public Health, University of Texas Health Science Center at Houston, TX, USA
| | | | - F J Sedlazeck
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
- Department of Computer Science, Rice University, 6100 Main Street, Houston, TX, USA
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Dash P, Mohanty P, Behura R, Behera S, Singla P, Sahoo SC, Sahoo SK, Jali BR. Detection of moisture in DMSO and raw food products by using an anthracene-based fluorescence OFF-ON chemosensor. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114650] [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: 03/06/2023]
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Behuria S, Sahu M, Mohanty M, Behera S, Mohapatra K, Patnaik R, Jena S. A Comparative Study of the Efficacy of Intraoperative Intravenous Oxytocin and Intramuscular Oxytocin Versus Conventional Intramuscular Oxytocin for Third-Stage Labour in Elective Cesarean Section. Cureus 2023; 15:e35026. [PMID: 36938161 PMCID: PMC10023047 DOI: 10.7759/cureus.35026] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/13/2023] [Indexed: 02/17/2023] Open
Abstract
Objective To study the efficacy of intraoperative IV oxytocin and intramuscular (IM) oxytocin versus conventional intramuscular oxytocin alone for active management of the third stage of labor in lower segment cesarean section (CS). The study was performed to determine the effect of 5 IU (International Unit) oxytocin infusion at the time of skin incision and that of 10 IU IM oxytocin infusion after delivery in reducing blood loss during and after CS, in comparison with the effect of administrating conventional 10 IU IM oxytocin in the same time period. In addition, it assessed the ability of the IV+IM oxytocin group to reduce the need for additional uterotonic as well as its safety determination and postoperative blood transfusion in CS. Materials and methods It is a randomized control study. The effect of 5 IU of oxytocin infusion at the time of skin incision and 10 IU of IM oxytocin (IV+IM) in reducing blood loss during and after the CS was compared to conventional 10 IU IM oxytocin. Results The study showed that the IV+IM group had a mean blood loss of 316.5 ± 74.36 ml, while the IM group had a mean loss of 403.90 ± 107.2 ml (p-value < 0.001) from placental delivery to the end of CS. A total of 90% of the patients in the IV+IM group had blood loss <50 ml compared to 95% of patients in the IM group who had a blood loss between 50 and 100 ml range from the end of cesarean to two hours postpartum. When total blood loss was compared in both groups, 84% of patients had a blood loss between 300 and 400 ml, compared to 81% of the patients in the IM group who had blood loss of 400-500 ml. Total blood loss in the IM group was 483.20 ± 115.86 ml, which was significantly higher compared to the IV group, 362.60 ± 78.07 ml (p-value=<0.001). Conclusion 5IU oxytocin infusion at the time of skin incision and 10 IU IM oxytocin after delivery of the baby significantly reduced the amount of blood loss, need for blood transfusion, and additional uterotonics during and after lower segment CS.
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Affiliation(s)
- Sasmita Behuria
- Obstetrics and Gynecology, Srirama Chandra Bhanj Medical College and Hospital, Cuttack, IND
| | - Mahija Sahu
- Obstetrics and Gynecology, Maharaja Krushna Chandra Gajapati Medical College and Hospital, Brahmapur, IND
| | - Minakshi Mohanty
- Community Medicine, Srirama Chandra Bhanj Medical College and Hospital, Cuttack, IND
| | - Swayamprava Behera
- Obstetrics and Gynecology, Srirama Chandra Bhanj Medical College and Hospital, Cuttack, IND
| | - Kirtirekha Mohapatra
- Obstetrics and Gynecology, Srirama Chandra Bhanj Medical College and Hospital, Cuttack, IND
| | - Ranjita Patnaik
- Obstetrics and Gynecology, Srirama Chandra Bhanj Medical College and Hospital, Cuttack, IND
| | - Satyajit Jena
- Obstetrics and Gynecology, Srirama Chandra Bhanj Medical College and Hospital, Cuttack, IND
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Swain S, Behera S, Ojha B. Optical, electrical and magnetic properties of (((Bi0.5Na0.5)0.7La0.3) (Ti0.7Fe0.3) O3) ferroelectric ceramic. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138580] [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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Rajesh JB, Rajkhowa S, Dimri U, Prasad H, Mohan NH, Hmar L, Sarma K, Chethan GE, Behera P, Jaganmohanarao G, Behera S, Zosangpuii. Haemato-biochemical alterations and oxidative stress associated with naturally occurring porcine circovirus2 infection in pigs. Trop Anim Health Prod 2020; 52:2243-2250. [PMID: 32125595 DOI: 10.1007/s11250-020-02247-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 02/24/2020] [Indexed: 10/24/2022]
Abstract
Porcine circovirus2 (PCV2) infection in pigs is one of the major causes of economic loss to the farmers in terms of low production, slow growth and increase post-weaning mortality rate. The effect of PCV2 infection on haemogram, serum biochemical profile and oxidant/anti-oxidant status is not well established in pigs. In the present study, haemogram, serum biochemical profile and oxidant/anti-oxidant status were assessed in pigs confirmed positive for PCV2 infections as evidenced by commercially available enzyme-linked immunosorbent assay kit (n = 151) and polymerase chain reaction (PCR) (n = 42) among a total of 306 number of pigs included in the study. Non-infected healthy pigs (n = 6) served as healthy control. The total erythrocyte count (TEC), haemoglobin (Hb), packed cell volume (PCV), total leukocyte count (TLC), differential leukocyte count (DLC) and thrombocyte count were measured. The levels of total protein, albumin, globulin, total bilirubin, direct bilirubin, blood urea nitrogen (BUN), creatinine and glucose and enzymes viz. alanine transaminase (ALT), aspartate transaminase (AST), gamma-glutamyl transferase (GGT) and alkaline phosphatase (ALP) were measured. Oxidative stress indicators such as plasma malondialdehyde (MDA) and total anti-oxidant activity (TAOA) were measured using commercially available kits. The mean values of TLC, lymphocytes and thrombocyte count were significantly (P < 0.05) low in PCV2-infected pigs. The levels of globulin, AST, GGT, BUN and creatinine were significantly increased (P < 0.05) whereas levels of albumin and glucose significantly (P < 0.05) decreased in PCV2-infected pigs. The significant increase (P < 0.05) in MDA level and significant decrease (P < 0.05) in TAOA level were noticed in PCV2-infected animals as compared with healthy control. The present study supports immunosuppression, possible multiple organ damage and oxidative stress associated with naturally occurring PCV2 infection in pigs. Timely vaccination and managemental practices can reduce PCV2 infection in farms. In spite of many research studies, there is still paucity of detailed systemic study on haemato-biochemical alteration and oxidative stress associated with PCV2 infection.
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Affiliation(s)
- J B Rajesh
- Department of Veterinary Medicine, College of Veterinary Sciences and Animal Husbandry, Selesih, Aizawl, Mizoram, 796015, India.
| | - S Rajkhowa
- Indian Council for Agricultural Research-National Research Centre on Pig, Rani, Guwahati, Assam, 781131, India
| | - U Dimri
- Division of Medicine, Indian Council for Agricultural Research-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - H Prasad
- Department of Veterinary Medicine, College of Veterinary Sciences and Animal Husbandry, Selesih, Aizawl, Mizoram, 796015, India
| | - N H Mohan
- Indian Council for Agricultural Research-National Research Centre on Pig, Rani, Guwahati, Assam, 781131, India
| | - L Hmar
- All India Coordinated Research Project on Pigs, College of Veterinary Sciences and Animal Husbandry, Selesih, Aizawl, Mizoram, 796015, India
| | - K Sarma
- Department of Veterinary Medicine, College of Veterinary Sciences and Animal Husbandry, Selesih, Aizawl, Mizoram, 796015, India
| | - G E Chethan
- Department of Veterinary Medicine, College of Veterinary Sciences and Animal Husbandry, Selesih, Aizawl, Mizoram, 796015, India
| | - P Behera
- Department of Veterinary Biochemistry and Physiology, College of Veterinary Sciences and Animal Husbandry, Selesih, Aizawl, Mizoram, 796015, India
| | - G Jaganmohanarao
- Department of Veterinary Biochemistry and Physiology, College of Veterinary Sciences and Animal Husbandry, Selesih, Aizawl, Mizoram, 796015, India
| | - S Behera
- Department of Veterinary Medicine, College of Veterinary Sciences and Animal Husbandry, Selesih, Aizawl, Mizoram, 796015, India
| | - Zosangpuii
- All India Coordinated Research Project on Pigs, College of Veterinary Sciences and Animal Husbandry, Selesih, Aizawl, Mizoram, 796015, India
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Behera S, Behura R, Mohanty M, Dinda R, Mohanty P, Verma AK, Sahoo SK, Jali B. Spectroscopic, cytotoxicity and molecular docking studies on the interaction between 2,4-dinitrophenylhydrazine derived Schiff bases with bovine serum albumin. Sensors International 2020. [DOI: 10.1016/j.sintl.2020.100048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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Sar M, Behera S, Bara D. Developmental abnormalities of vertebral column: a study in dried vertebrae of western Odisha population. J ANAT SOC INDIA 2018. [DOI: 10.1016/j.jasi.2018.06.075] [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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13
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14
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Behera S, Ray RC, Swain MR, Mohanty RC, Biswal AK. Traditional and Current Knowledge on the Utilization of Mahua (Madhuca latifolia L.) Flowers by the Santhal Tribe in Similipal Biosphere Reserve, Odisha, India. ACTA ACUST UNITED AC 2016. [DOI: 10.32945/atr3818.2016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Mahua ( Madhuca latifolia L.) (also called as mahua) is a tree commonly found in
mixed deciduous forests of Asian and Australian Continents, often growing on
rocky and sandy soils. The various parts of this tree serve as food, feed, and
medicine, thus form a part and parcel in the sustainability of livelihood of the tribal
people. A study was conducted in 2009 among the people of Santhal tribe in
Odisha, India to get information (traditional and current) on the uses of this tree
species, particularly on its edible flowers. The study area concentrated in and
around the deep forest pockets of Chandbill village of Bangiriposi Block on the
northern border of the Similipal Biosphere Reserve, Odisha. This tree species is
found to substantially contribute to all sectors of tribal economy like food
(flowers), beverage (flowers), and medicine (flowers, seeds and bark). Mahua
flowers are fermented in to a distilled alcoholic beverage (country liquor, locally
called “ ) in household and commercial scale. , having an alcohol mahuli” Mahuli
percentage of 30-40 %, is used as a supplement to rice as staple diet in their food
habit.
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Affiliation(s)
- S. Behera
- Department of Botany, Utkal University, Vanivihar, Bhubaneswar –751004, Orissa, India
| | - R. C. Ray
- Microbiology Laboratory, ICAR-Central Tuber Crops Research Institute (Regional Centre), Bhubaneswar-751019, Orissa, India
| | - M. R. Swain
- Department of Biotechnology, 3 College of Engineering and Technology, Bhubaneswar
| | - R. C. Mohanty
- 1 Department of Botany, Utkal University, Vanivihar, Bhubaneswar –751004, Orissa, India
| | - A. K. Biswal
- Department of Botany, 4 North Orissa University, Takatpur, Baripada, Orissa
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Shah A, Behera S, Panjabi C. Middle lobe syndrome: a rare presentation of allergic bronchopulmonary aspergillosis. Eur Ann Allergy Clin Immunol 2014; 46:147-151. [PMID: 25053632] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Allergic bronchopulmonary aspergillosis (ABPA) is a disease predominantly seen in susceptible asthmatic subjects, due to a hypersensitivity phenomenon caused by colonisation of the airways by Aspergillus species. Although collapse, both lobar and segmental due to mucoid impaction, is not uncommon in ABPA, a middle lobe syndrome (MLS) secondary to ABPA is rather an uncommon association. We report this rare and unusual clinical presentation in a 36-year-old male, who presented for evaluation of a "non resolving pneumonia". Imaging suggested the presence of a MLS and central bronchiectasis. Further investigations revealed that the patient met 6/8 of the essential diagnostic criteria for ABPA. Appropriate therapy with oral corticosteroids resulted in remarkable symptomatic improvement.
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Affiliation(s)
- A Shah
- Department of Respiratory Medicine, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi 110 007, India. E-mail:
| | - S Behera
- Department of Respiratory Medicine, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi 110 007, India
| | - C Panjabi
- Department of Respiratory Medicine, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi 110 007, India. Current affiliation: Department of Respiratory Medicine, Mata Chanan Devi Hospital, New Delhi, India
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16
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Graham JD, Buytendyk AM, Zhang X, Collins EL, Kiran B, Gantefoer G, Eichhorn BW, Gutsev GL, Behera S, Jena P, Bowen KH. Alanate Anion, AlH4–: Photoelectron Spectrum and Computations. J Phys Chem A 2014; 118:8158-62. [DOI: 10.1021/jp500678n] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J. D. Graham
- Department
of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - A. M. Buytendyk
- Department
of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - X. Zhang
- Department
of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - E. L. Collins
- Department
of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - B. Kiran
- Department
of Chemistry, McNeese State University, Lake Charles, Louisiana 70609, United States
| | - G. Gantefoer
- Department
of Physics, Konstanz University, 78457 Konstanz, Germany
| | - B. W. Eichhorn
- Department
of Chemistry, University of Maryland, College Park, Maryland 20742, United States
| | - G. L. Gutsev
- Department of Physics, Florida A&M University, Tallahassee, Florida 32307, United States
| | - S. Behera
- Department
of Physics, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - P. Jena
- Department
of Physics, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - K. H. Bowen
- Department
of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
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17
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Altarawneh S, Behera S, Jena P, El-Kaderi HM. New insights into carbon dioxide interactions with benzimidazole-linked polymers. Chem Commun (Camb) 2014; 50:3571-4. [DOI: 10.1039/c3cc45901b] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Computational studies reveal that the excellent performance of benzimidazole-linked polymers in selective carbon dioxide capture over methane and nitrogen is facilitated by several electrostatic interactions involving the Lewis basic sites and the aryl C–H of the benzimidazole units with CO2.
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Affiliation(s)
- Suha Altarawneh
- Department of Chemistry
- Virginia Commonwealth University
- Richmond, USA
| | - S. Behera
- Department of Physics
- Virginia Commonwealth University
- Richmond, USA
| | - Puru Jena
- Department of Physics
- Virginia Commonwealth University
- Richmond, USA
| | - Hani M. El-Kaderi
- Department of Chemistry
- Virginia Commonwealth University
- Richmond, USA
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18
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Thirunavoukkarasu M, Balaji U, Behera S, Panda PK, Mishra BK. Biosynthesis of silver nanoparticle from leaf extract of Desmodium gangeticum (L.) DC. and its biomedical potential. Spectrochim Acta A Mol Biomol Spectrosc 2013; 116:424-427. [PMID: 23973589 DOI: 10.1016/j.saa.2013.07.033] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [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: 02/26/2013] [Revised: 07/12/2013] [Accepted: 07/21/2013] [Indexed: 06/02/2023]
Abstract
An aqueous leaf extract of Desmodium gangeticum was employed to synthesize silver nano particles. Rapid formation of stable silver nanoparticles were observed on exposure of the aqueous leaf extract with solution of silver nitrate. The silver nanoparticles were characterized by UV-visible spectroscopy, scanning electron microscopy, energy dispersive X-ray analysis and transmission electron microscopy (TEM), and Fourier Transform Infra-Red spectroscopy (FTIR) UV-visible spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDAX), transmission electron microscopy (TEM), and Fourier Transform Infra-Red spectroscopy (FTIR). UV-visible spectrum of the aqueous medium peaked at 450 nm corresponding to the plasmon absorbance of silver nanoparticles. SEM analysis revealed the spherical shape of the particles with sizes ranging from 18 to 39 nm and the EDAX spectrum confirmed the presence of silver along with other elements in the plant metabolite. Further, these biologically synthesized nanoparticles were found to be highly toxic against pathogenic bacteria Escherichia coli, thus implying significance of the present study in production of biomedical products.
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Affiliation(s)
- M Thirunavoukkarasu
- Bioresources Engineering Department, CSIR-Institute of Minerals & Materials Technology, Bhubaneswar, Orissa 751013, India.
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19
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Gupta R, Kushwaha S, Behera S, Jaiswal A, Thakur R. Vertebro-cerebral cryptococcosis mimicking tuberculosis: a diagnostic dilemma in countries with high burden of tuberculosis. Indian J Med Microbiol 2012; 30:245-8. [PMID: 22664450 DOI: 10.4103/0255-0857.96715] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
We report a case of a 30-year-old immunocompetent man with disseminated cryptococcosis who was initially treated with antitubercular therapy due to clinical and radiological diagnosis of vertebro-cerebral tuberculosis. The diagnosis of Cryptococcus infection was made due to incidental isolation of this fungus from blood culture with negative cerebrospinal fluid culture results. Though disseminated cryptococcosis with central nervous system, skeletal, and skin involvement is an uncommon manifestation of Cryptococcus neoformans infection, a high clinical suspicion and early initiation of therapy is needed to recognise and treat such patients efficiently.
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Affiliation(s)
- R Gupta
- Department of Microbiology, Institute of Human Behaviour and Allied Sciences, Dilshad Garden, Delhi 110 095, India
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20
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Senapati PK, Behera S. Experimental investigation on an entrained flow type biomass gasification system using coconut coir dust as powdery biomass feedstock. Bioresour Technol 2012; 117:99-106. [PMID: 22613886 DOI: 10.1016/j.biortech.2012.04.049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Revised: 04/14/2012] [Accepted: 04/15/2012] [Indexed: 06/01/2023]
Abstract
Based on an entrained flow concept, a prototype atmospheric gasification system has been designed and developed in the laboratory for gasification of powdery biomass feedstock such as rice husks, coconut coir dust, saw dust etc. The reactor was developed by adopting L/D (height to diameter) ratio of 10, residence time of about 2s and a turn down ratio (TDR) of 1.5. The experimental investigation was carried out using coconut coir dust as biomass feedstock with a mean operating feed rate of 40 kg/h The effects of equivalence ratio in the range of 0.21-0.3, steam feed at a fixed flow rate of 12 kg/h, preheat on reactor temperature, product gas yield and tar content were investigated. The gasifier could able to attain high temperatures in the range of 976-1100 °C with gas lower heating value (LHV) and peak cold gas efficiency (CGE) of 7.86 MJ/Nm3 and 87.6% respectively.
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Affiliation(s)
- P K Senapati
- Design & Rural Technology Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751 013, India.
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21
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Reich TE, Behera S, Jackson KT, Jena P, El-Kaderi HM. Highly selective CO2/CH4 gas uptake by a halogen-decorated borazine-linked polymer. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31123b] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Tiwary K, Behera S, Sharada G, Singh A. Modelling and Simulation of Pseudolite-based Navigation: A GPS-independent Radio Navigation System. DEFENCE SCI J 2010. [DOI: 10.14429/dsj.60.577] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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23
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Behera S, Seri I. Meningitis in a newborn infant with urosepsis, negative blood cultures and initially normal cerebrospinal fluid findings. J Matern Fetal Neonatal Med 2009; 15:129-31. [PMID: 15209122 DOI: 10.1080/14767050410001659860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
This case presentation supports the observation that initial cerebrospinal fluid findings can be normal in newborn infants with sepsis syndrome who then develop evidence for meningeal involvement. Therefore, if initial lumbar puncture results are negative, a repeat lumbar puncture is recommended to look for meningitis in newborns that are critically ill with sepsis syndrome.
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Affiliation(s)
- S Behera
- Department of Pediatrics, Children's Hospital Los Angeles, Los Angeles, California 90027, USA
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24
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Sirka CS, Puhan MR, Behera S, Mohanty P, Nanda M. Becker's nevus with ipsilateral breast hypoplasia. Indian J Dermatol Venereol Leprol 2009; 75:202-3. [DOI: 10.4103/0378-6323.48683] [Citation(s) in RCA: 3] [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: 11/04/2022]
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25
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Behera S, Raj CR. Mercaptoethylpyrazine promoted electrochemistry of redox protein and amperometric biosensing of uric acid. Biosens Bioelectron 2007; 23:556-61. [PMID: 17719217 DOI: 10.1016/j.bios.2007.06.012] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2007] [Accepted: 06/15/2007] [Indexed: 11/16/2022]
Abstract
Electrochemistry of microperoxidase-11 (MPx-11) anchored on the mixed self-assembled monolayer (SAM) of 2-(2-mercaptoethylpyrazine) (PET) and 4,4'-dithiodibutyric acid (DTB) on gold (Au) electrode and the biosensing of uric acid (UA) is described. MPx-11 has been covalently anchored on the mixed SAM of PET and DTB on Au electrode. MPx-11 on the mixed self-assembly exhibits reversible redox response characteristic of a surface confined species. The heterocyclic ring of PET promotes the electron transfer between the electrode and the redox protein. The apparent standard rate constant kapps obtained for the redox reaction of MPx-11 on the mixed monolayer is approximately 2.15 times higher than that on the single monolayer of DTB modified electrode. MPx-11 efficiently mediates the electrocatalytic reduction of H2O2. MPx-11 electrode is highly sensitive to H2O2 and it shows linear response for a wide concentration range. The electrocatalytic activity of the MPx-11 electrode is combined with the enzymatic activity of uricase (UOx) to fabricate uric acid biosensor. The bienzyme assembly is highly sensitive towards UA and it could detect UA as low as 2 microM at the potential of -0.1 V. The biosensor shows linear response with a sensitivity of 3.4+/-0.08 nA cm(-2) microM(-1). Ascorbate (AA) and paracetamol (PA) do not significantly interfere in the amperometric sensing of UA.
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Affiliation(s)
- S Behera
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
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26
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Raj CR, Behera S. Electrochemically triggered Michael addition on the self-assembly of 4-thiouracil: generation of surface-confined redox mediator and electrocatalysis. Langmuir 2007; 23:1600-7. [PMID: 17279634 DOI: 10.1021/la062586u] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Generation of a surface-confined redox mediator (RM) by an electrochemically triggered Michael addition reaction and the electrocatalytic properties of the mediator are described. Electrogenerated o-quinone undergoes Michael addition reaction with the self-assembled monolayer (SAM) of 4-thiouracil (4-TU) on a gold (Au) electrode and yields a surface-confined RM, 1-(3,4-dihydroxyphenyl)-4-mercapto-1H-pyrimidin-2-one (DPTU). The Michael addition reaction depends on the electrolysis potential and time, solution pH, and concentration of catechol (CA) used in the reaction. The redox mediator, DPTU, exhibits reversible redox response, characterstic of a surface-confined species at approximately 0.22 V in neutral pH. The anodic peak potential of DPTU shifts by 58+/-2 mV while changing the solution pH by one unit, suggesting that protons and electrons taking part in the redox reaction are in the ratio of 1:1. The apparent rate constant (ksapp) for the heterogeneous electron-transfer reaction of the RM was determined to be 114+/-5 s-1. The surface coverage (Gamma) of DPTU on the electrode surface was 8.2+/-0.1x10(-12) mol/cm2. DPTU shows excellent electrocatalytic activity toward oxidation of reduced nicotinamide adenine dinucleotide (NADH) with activation overpotential, which is approximately 600 mV lower than that observed at the unmodified Au electrode. The dipositive cations in the supporting electrolyte solution amplify the electrocatalytic activity of DPTU. A 2.5-fold enhancement in the catalytic current was observed in the presence of Ca2+ or Ba2+ ions. The sensitivity of the electrode toward NADH in the presence and absence of Ca2+ ions was 0.094+/-0.011 and 0.04+/-0.0071 nA cm-2 nM-1, respectively. A linear increase in the catalytic current was obtained up to the concentration of 0.8 mM, and the electrode can detect amperometrically as low as 25 nM of NADH in neutral pH.
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Affiliation(s)
- C Retna Raj
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India.
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27
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Raj CR, Behera S. Mediatorless voltammetric oxidation of NADH and sensing of ethanol. Biosens Bioelectron 2006; 21:949-56. [PMID: 16257664 DOI: 10.1016/j.bios.2005.03.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2005] [Revised: 02/24/2005] [Accepted: 03/01/2005] [Indexed: 10/25/2022]
Abstract
A simple, selective and sensitive method for the detection of NADH and ethanol is presented. Self-assembled monolayers (SAMs) of mercaptopyrimidine (MPM) and their derivatives, thiocytosine (TC) and 4,6-diamino-2-mercaptopyrimidine (DMP) on gold (Au) electrode are used for the voltammetric detection of NADH and ethanol in neutral aqueous solution. A decrease of 200-300 mV in the overpotential associated with an observable increase in the peak current was obtained for the oxidation of NADH on MPM and TC monolayer-modified electrodes without any redox mediator. The facilitated electron transfer for the oxidation of NADH at the TC monolayer is ascribed to the existence of stable cationic p-quinonoid form of TC. The electrode modified with DMP monolayer could not exhibit stable response for NADH owing to the fouling of electrode surface. The MPM and TC monolayer-modified electrodes show high selectivity and excellent sensitivity (MPM: 0.633+/-0.005 microA cm(-2) microM(-1); TC: 0.658+/-0.008 microA cm(-2) microM(-1)) towards NADH with detection limit (3sigma) of 2.5 and 0.5 microM, respectively. Presence of large excess of ascorbate (AA) does not interfere the detection of NADH and the monolayer-modified electrode shows individual voltammetric peaks for AA and NADH. Voltammetric sensing of ethanol using alcohol dehydrogenase on MPM and TC monolayer-modified electrode is successfully demonstrated and these electrode can detect as low as 0.5 mM ethanol in neutral pH. The sensitivity of the MPM and TC monolayer-modified electrodes toward ethanol was found to be 3.24+/-0.03 and 3.435+/-0.04 microA cm(-2) mM(-1), respectively.
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Affiliation(s)
- C Retna Raj
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India.
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Zhang W, Yang H, Behera S, Kong X, Lockey R, Mohapatra S. Prophylaxis of respiratory syncytial virus infection with intranasal siRNA-nanoparticles of the NS1 gene In Vivo. J Allergy Clin Immunol 2005. [DOI: 10.1016/j.jaci.2004.12.553] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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29
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Zhang W, Yang H, Kong X, Mohapatra S, Juan-Vergara HS, Hellermann G, Behera S, Singam R, Lockey RF, Mohapatra SS. Erratum: Inhibition of respiratory syncytial virus infection with intranasal siRNA nanoparticles targeting the viral NS1 gene. Nat Med 2005. [DOI: 10.1038/nm0205-233b] [Citation(s) in RCA: 3] [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: 11/09/2022]
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30
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Sundararaj GD, Behera S, Ravi V, Venkatesh K, Cherian VM, Lee V. Role of posterior stabilisation in the management of tuberculosis of the dorsal and lumbar spine. J Bone Joint Surg Br 2003; 85:100-6. [PMID: 12585586 DOI: 10.1302/0301-620x.85b1.13300] [Citation(s) in RCA: 112] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We present a prospective study of patients with tuberculosis of the dorsal, dorsolumbar and lumbar spine after combined anterior (radical debridement and anterior fusion) and posterior (instrumentation and fusion) surgery. The object was to study the progress of interbody union, the extent of correction of the kyphosis and its maintenance with early mobilisation, and the incidence of graft and implant-related problems. The American Spinal Injury Association (ASIA) score was used to assess the neurological status. The mean preoperative vertebral loss was highest (0.96) in the dorsal spine. The maximum correction of the kyphosis in the dorsolumbar spine was 17.8 degrees. Loss of correction was maximal in the lumbosacral spine at 13.7 degrees. All patients had firm anterior fusion at a mean of five months. The incidence of infection was 3.9% and of graft-related problems 6.5%. We conclude that adjuvant posterior stabilisation allows early mobilisation and rehabilitation. Graft-related problems were fewer and the progression and maintenance of correction of the kyphosis were better than with anterior surgery alone. There is no additional risk relating to the use of an implant either posteriorly or anteriorly even when large quantities of pus are present.
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Affiliation(s)
- G D Sundararaj
- Department of Orthopaedics and Accident Surgery Unit-I, Christian Medical College and Hospital, Vellore, Tamil Nadu, India
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