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Preethi, Shanmugavel SP, Kumar G, N YK, M G, J RB. Recent progress in mineralization of emerging contaminants by advanced oxidation process: A review. Environ Pollut 2024; 341:122842. [PMID: 37940020 DOI: 10.1016/j.envpol.2023.122842] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 08/03/2023] [Revised: 09/25/2023] [Accepted: 10/29/2023] [Indexed: 11/10/2023]
Abstract
Emerging contaminants are chemicals generated due to the usage of pesticide, endocrine disrupting compounds, pharmaceuticals, and personal care products and are liberated into the environment in trace quantities. The emerging contaminants eventually become a greater menace to living beings owing to their wide range and inhibitory action. To diminish these emerging contaminants from the environment, an Advanced Oxidation Process was considered as an efficient option. The Advanced Oxidation Process is an efficient method for mineralizing fractional or generous contaminants due to the generation of reactive species. The primary aim of this review paper is to provide a thorough knowledge on different Advanced Oxidation Process methods and to assess their mineralization efficacy of emerging contaminants. This study indicates the need for an integrated process for enhancing the treatment efficiency and overcoming the drawbacks of the individual Advanced Oxidation Process. Further, its application concerning technical and economic aspects is reviewed. Until now, most of the studies have been based on lab or pilot scale and do not represent the actual scenario of the emerging contaminant mineralization. Thus, the scaling up of the process was discussed, and the major challenges in large scale implementation were pointed out.
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Affiliation(s)
- Preethi
- Department of Physics, Anna University, Chennai, Tamil Nadu, 600025, India
| | - Surya Prakash Shanmugavel
- Department of Solid Waste Management and Health, Greater Chennai Corporation, Tamil Nadu, 600 003, India
| | - Gopalakrishnan Kumar
- Institute of Chemistry, Bioscience and Environmental Engineering, Faculty of Science and Technology, University of Stavanger, Box 8600 Forus, 4036 Stavanger, Norway; School of Civil and Environmental Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Yogalakshmi K N
- Department of Environmental Science and Technology, Central University of Punjab, Bathinda, Punjab, 151401, India
| | - Gunasekaran M
- Department of Physics, Anna University, Chennai, Tamil Nadu, 600025, India
| | - Rajesh Banu J
- Department of Biotechnology, Central University of Tamil Nadu, Neelakudi, Thiruvarur, 610005, India.
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S DB, K PDL, M G, S VL, Reji A, F KS. Comparison of the Antibacterial Efficacy of Bamboo Shoot Ethanol Extract With Chlorhexidine Mouth Rinse Against Salivary Streptococcus mutans and Lactobacillus acidophilus: An Ex Vivo Study. Cureus 2024; 16:e53085. [PMID: 38414676 PMCID: PMC10897525 DOI: 10.7759/cureus.53085] [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: 01/27/2024] [Indexed: 02/29/2024] Open
Abstract
Background Dental caries is the most prevalent polymicrobial oral infectious disease tormenting individuals' healthy lifestyles and presents a significant public health problem. The objective of this study was to evaluate and compare the antibacterial properties of different concentrations of bamboo shoot ethanol extract with chlorhexidine mouth rinse on isolates of salivary Streptococcus mutans (S. mutans) and Lactobacillus acidophilus (L. acidophilus). Materials and methods Non-stimulated salivary samples from 30 young adults were treated ex vivo with bamboo shoot ethanolic extract at concentrations of 30 µg/ml, 40 µg/ml, 50 µg/ml, and 60 µg/ml. The colony-forming units were quantified by measuring the number of viable bacterial cells. Inhibition zones were evaluated using the agar diffusion method. One-way ANOVA and post-hoc test were used to analyze the significant difference between variables using SPSS version 22.0 (IBM Corp., Armonk, NY). Results The mean zone of inhibition with bamboo shoot ethanolic extract against salivary S. mutans (23.00 ± 0.816) and L. acidophilus (22.00 ± 0.816) total counts was closest to the control chlorhexidine (S. mutans = 22.00 ± 0.876 and L. acidophilus = 21.10 ± 0.876). A greater activity against S. mutans and L. acidophilus is seen in the zone of inhibition of the 60 µg/ml experimental concentration of bamboo shoot ethanolic extract, with a significant difference in the disc diffusion assay. Conclusion The treatment with bamboo shoot extract was equivalent effective in the mentioned bacterial species. Clinical relevance It can be assured that preventive measures like mouth rinse and dentifrices compromising bamboo shoots, a potential dental biomaterial, would be optimistic agents for caries control, including the cariostatic effect.
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Affiliation(s)
- Divya Bharathi S
- Dentistry, Vinayaka Mission's Sankarachariyar Dental College, Vinayaka Mission's Research Foundation (Deemed to be University), Salem, IND
| | - Priya Deepa Lakshmi K
- Public Health Dentistry, Vinayaka Mission's Sankarachariyar Dental College, Vinayaka Mission's Research Foundation (Deemed to be University), Salem, IND
| | - Gunasekaran M
- Orthodontics and Dentofacial Orthopedics, Vinayaka Mission's Sankarachariyar Dental College, Vinayaka Mission's Research Foundation (Deemed to be University), Salem, IND
| | - Venkata Lakshmi S
- Public Health Dentistry, Vydehi Institute of Dental Sciences and Research Centre, Bangalore, IND
| | - Anjali Reji
- Public Health Dentistry, Vinayaka Mission's Sankarachariyar Dental College, Vinayaka Mission's Research Foundation (Deemed to be University), Salem, IND
| | - Kathija Sulthana F
- Dentistry, Vinayaka Mission's Sankarachariyar Dental College, Vinayaka Mission's Research Foundation (Deemed to be University), Salem, IND
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Banu JR, Kumar G, Gunasekaran M. Augmentation in polyhydroxybutyrate and biogas production from waste activated sludge through mild sonication induced thermo-fenton disintegration. Bioresour Technol 2023; 369:128376. [PMID: 36414138 DOI: 10.1016/j.biortech.2022.128376] [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] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
In this study, an innovative approach was developed to enhance the hydrolysis through phase-separated pretreatment by removing exopolymeric substances via mild sonication followed by thermo-Fenton disintegration. The exopolymeric substances fragmentation was enhanced at the sonic specific energy input of 2.58 kJ/kg total solids. After exopolymeric substance removal, the disintegration of biomass by thermo-Fenton yield the solubilization of 29.8 % at Fe2+:H2O2 dosage and temperature of 0.009:0.036 g/g suspended solids and 80 °C as compared to thermo-Fenton alone disintegration. The polyhydroxybutyrate content of 93.1 % was accumulated by Bacillus aryabhattai at the optimum time of 42 h, while providing 70 % (v/v) pre-treated supernatant as a carbon source under nutrient-limiting condition. Moreover, the biogas generation of 0.187 L/g chemical oxygen demand was achieved using settled pretreated sludge. The pretreated sludge sample thus served as a carbon source for polyhydroxybutyrate producers as well as substrate for biogas production.
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Affiliation(s)
- J Rajesh Banu
- Department of Biotechnology, Central University of Tamil Nadu, Neelakudi, Thiruvarur 610005, India
| | - Gopalakrishnan Kumar
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea; Institute of Chemistry, Bioscience and Environmental Engineering, Faculty of Science and Technology, University of Stavanger, Stavanger, Norway
| | - M Gunasekaran
- Department of Physics, Anna University Regional Campus, Tirunelveli, TamilNadu 627007, India.
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Rajesh Banu J, Gunasekaran M, Kumar V, Bhatia SK, Kumar G. Enhanced biohydrogen generation through calcium peroxide engendered efficient ultrasonic disintegration of waste activated sludge in low temperature environment. Bioresour Technol 2022; 365:128164. [PMID: 36283675 DOI: 10.1016/j.biortech.2022.128164] [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] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 10/14/2022] [Accepted: 10/15/2022] [Indexed: 06/16/2023]
Abstract
Waste activated sludge is a renewable source for biohydrogen production, whereas the presence of complex biopolymers limits the hydrolysis step during this process, and thus pretreatment is required to disintegrate the sludge biomass. In this study, the feasibility of utilizing waste activated sludge to produce biohydrogen by improving the solubilization by means of thermo CaO2 engendered sonication disintegration (TCP-US) was studied. The optimized condition for extracellular polymeric substance (EPS) dissociation was obtained at the CaO2 dosage of 0.05 g/g SS at 70 °C. The maximum disintegration after EPS removal was achieved at the sonic specific energy input of 1612.8 kJ/kg TS with the maximum solubilization and SS reduction of 23.7% and 18.14%, respectively, which was higher than the US alone pretreatment. Thus, this solubilization yields higher biohydrogen production of 114.3 mLH2/gCOD in TCP-US sample.
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Affiliation(s)
- J Rajesh Banu
- Department of Biotechnology, Central University of Tamil Nadu, Neelakudi, Thiruvarur, Tamil Nadu 610005, India
| | - M Gunasekaran
- Department of Physics, Anna University Regional Campus Tirunelveli, Tamilnadu 627007 India
| | - Vinod Kumar
- School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, United Kingdom
| | - Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Gopalakrishnan Kumar
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea.
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Khanum S, Rajiga S, Mathanprasad L, Gunasekaran M, Firos A. Parameterized Fuzzy Measures Decision-Making Model Based on Preference Leveled Evaluation Functions for Best Signal Detection in Smart Antenna. Big Data Analytics 2022. [DOI: 10.1201/9781003307761-10] [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: 11/12/2022] Open
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de Miguel Perez D, Ortega F, Guerrero Tejada R, Peterson C, Russo A, Gunasekaran M, Cardona A, Bayarri Lara C, Garcia-Diaz A, Hirsch F, Lorente J, Exposito Hernandez J, Serrano M, Rolfo C. P2.13-01 Low EV miR-30c Levels as Biomarker of Increased Tumor Autophagy and Chemoradiotherapy Resistance in Locally Advanced NSCLC. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.254] [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: 10/14/2022]
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Rajesh Banu J, Tyagi VK, Bajhaiya AK, Gugulothu P, Gunasekaran M. Biohydrogen production from waste activated sludge through thermochemical mechanical pretreatment. Bioresour Technol 2022; 358:127301. [PMID: 35562024 DOI: 10.1016/j.biortech.2022.127301] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 04/04/2022] [Revised: 05/06/2022] [Accepted: 05/08/2022] [Indexed: 06/15/2023]
Abstract
Generation of excess sludge in large quantities from wastewater treatment plant face huge problem in terms of handling and management, whereas it possess higher organic and inorganic constituents and thus it can be used as a feedstock for the generation of biofuel with proper disintegration techniques.In this regard, an effort has been made in this study to combine thermo-chemo-disperser pretreatment for the disintegration of paper mill waste activated sludge for the production of biohydrogen in an energy efficient way. These combinations of thermo-chemo-disperser (TCD) tend to be effective in disintegration and possess 24.3% COD solubilization and higher suspended solid reduction of 18.8% at the specific energy usage of 2081.82 kJ/kg TS. The pretreatment with TCD technique shows the biohydrogen production of 120.2 mLH2/gCOD as compared to thermochemically pretreated alone (73.6 mLH2/gCOD) sample. Thus, the combined process was considered to be potentially effective in sludge disintegration.
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Affiliation(s)
- J Rajesh Banu
- Department of Life Sciences, Central University of Tamil Nadu, Neelakudi, Thiruvarur 610005, India
| | - Vinay Kumar Tyagi
- Environmental Hydrology Division, National Institute of Hydrology, Roorkee 247667, India
| | - Amit Kumar Bajhaiya
- Department of Microbiology, Central University of Tamil Nadu, Neelakudi, Thiruvarur, 610005, India
| | - Poornachandar Gugulothu
- Department of Life Sciences, Central University of Tamil Nadu, Neelakudi, Thiruvarur 610005, India
| | - M Gunasekaran
- Department of Physics, Anna University Regional Campus, Tirunelveli, Tamil Nadu 627007, India.
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Banu J R, Varjani S, P S, Tyagi VK, Gunasekaran M. Breakthrough in hydrolysis of waste biomass by physico-chemical pretreatment processes for efficient anaerobic digestion. Chemosphere 2022; 294:133617. [PMID: 35041820 DOI: 10.1016/j.chemosphere.2022.133617] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/19/2021] [Accepted: 01/11/2022] [Indexed: 06/14/2023]
Abstract
Anaerobic digestion (AD) is the most comprehended process to stabilise the waste biomass efficiently and to obtain bioenergy. The AD starts with the hydrolysis process, where the major liability is the action of inhibitors during the hydrolysis process. The biomass pretreatment preceding anaerobic digestion is obligatory to improve feedstock biodegradability for enhanced biogas generation. It can be prevailed by the application of various pretreatment processes. This review explains the major inhibiting compounds and their formation during hydrolysis that affect the efficiency of anaerobic digestion and the benefits of the physico-chemical pretreatment (PCP) method for enhancing hydrolysis in the digestion of waste biomass. The synergistic effect of PCP on macromolecular release, liquefaction and biodegradability were presented. The feasibility of the pretreatment process was evaluated in terms of energy and cost assessment for pilot scale implementation. The outcome of this review reveals that the physico-chemical process is one of the best pretreatment methods to enhance anaerobic digestion by optimising various parameters and increasing the solubilization by about 90%. The thermochemical pretreatment at lower temperature (<100) increases the net energy yield. The solubilization of waste biomass in terms of macromolecular release and liquefaction cannot describe the pretreatment potential. The effectiveness of pretreatment was evaluated by the substrate pre-treatment followed by anaerobic digestibility of pretreated substrate.
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Affiliation(s)
- Rajesh Banu J
- Department of Life Sciences, Central University of Tamil Nadu, Neelakudi, Thiruvarur, 610005, India
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat, 382010, India
| | - Sivashanmugam P
- Department of Chemical Engineering, National Institute of Technology, Tiruchirapalli, Tamil Nadu, India
| | - Vinay Kumar Tyagi
- Environmental BioTechnology Group (EBiTG), Department of Civil Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
| | - M Gunasekaran
- Department of Physics, Anna University Regional Campus, Tirunelveli, Tamil Nadu, 627007, India.
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Rajesh Banu J, Kavitha S, Yukesh Kannah R, Varjani S, Gunasekaran M. Mild hydrogen peroxide interceded bacterial disintegration of waste activated sludge for efficient biomethane production. Sci Total Environ 2022; 817:152873. [PMID: 34998769 DOI: 10.1016/j.scitotenv.2021.152873] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/27/2021] [Accepted: 12/29/2021] [Indexed: 06/14/2023]
Abstract
Regardless of the issue of sludge management all over the world, the role of phase separated pretreatment prior to anaerobic digestion are more promising in terms of energy efficient biomethane production. However, the effect of phase separated pretreatment (dissociation of extracellular polymeric substances (EPS) followed by biological pretreatment in a two-step process) must be sensibly evaluated from various perceptions to consolidate its effectiveness in sludge management and bioenergy recovery. In this study, mild hydrogen peroxide induced bacterial pretreatment (H2O2-BP) was employed as phase separated pretreatment to investigate the effectiveness of EPS dissociation prior to biological pretreatment on sludge solubilization and biomethanation. The novelty of this study is the application of mild dosage of hydrogen peroxide at sludge pH for the removal of EPS layer with lesser formation of recalcitrant substances which thereby enhances the disintegration by enzyme secreting bacterial and methane generation. The outcome confirmed that the higher EPS dissociation was achieved at H2O2 dosage of 8 μL per 100 mL of sludge with negligible cell lysis. An extractable EPS of 172.8 mg/L was obtained after H2O2 treatment. The higher sCOD solubilization of 22% and the suspended solid reduction of 17.14% were achieved in hydrogen peroxide followed by bacterial pretreatment (H2O2-BP) as compared to of bacterial pretreatment alone (BP) (solubilization-11% and suspended solids reduction-9.3%) and control (C) sludges (solubilization-5% and suspended solids reduction-4.3%). The methane generation for H2O2-BP sludge is 0.174 L/gCOD which is higher than BP (0.078 L/gCOD,) and C sludge (0.02175 L/gCOD). A higher biomass solubilization and increased biomethanation in H2O2-BP revealed that dissociation of EPS prior to bacterial pretreatment increases the surface area for bacterial pretreatment facilitating easier accessibility of substrate and enhanced biomethanation.
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Affiliation(s)
- J Rajesh Banu
- Department of Life Sciences, Central University of Tamil Nadu, Neelakudi, Thiruvarur 610005, Tamil Nadu, India
| | - S Kavitha
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, Tamil Nadu 627007, India
| | - R Yukesh Kannah
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, Tamil Nadu 627007, India; Department of Civil Engineering, National Institute of Technology, Tiruchirapalli, Tamil Nadu 620015, India
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382010, India
| | - M Gunasekaran
- Department of Physics, Anna University Regional Campus, Tirunelveli, Tamil Nadu 627007, India.
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Rajesh Banu J, Godvin Sharmila V, Yukesh Kannah R, Kanimozhi R, Elfasakhany A, Gunasekaran M, Adish Kumar S, Kumar G. Impact of novel deflocculant ZnO/Chitosan nanocomposite film in disperser pretreatment enhancing energy efficient anaerobic digestion: Parameter assessment and cost exploration. Chemosphere 2022; 286:131835. [PMID: 34426273 DOI: 10.1016/j.chemosphere.2021.131835] [Citation(s) in RCA: 2] [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: 07/10/2021] [Revised: 07/28/2021] [Accepted: 08/05/2021] [Indexed: 06/13/2023]
Abstract
This paper proposed to interpret the novel method of extracellular polymeric substance (EPS) removal in advance to sludge disintegration to enrich bioenergy generation. The sludge has been subjected to deflocculation using Zinc oxide/Chitosan nanocomposite film (ZCNF) and achieved 98.97% of solubilization which enhance the solubilization of organics. The obtained result revealed that higher solubilization efficiency of 23.3% was attained at an optimal specific energy of 2186 kJ/kg TS and disintegration duration of 30 min. The deflocculated sludge showed 8.2% higher solubilization than the flocculated sludge emancipates organics in the form of 1.64 g/L of SCOD thereby enhancing the methane generation. The deflocculated sludge produces methane of 230 mL/g COD attained overall solid reduction of 55.5% however, flocculated and control sludge produces only 182.25 mL/g COD and 142.8 mL/g COD of methane. Based on the energy, mass and cost analysis, the deflocculated sludge saved 94.1% of energy than the control and obtained the net cost of 5.59 $/t which is comparatively higher than the flocculated and control sludge.
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Affiliation(s)
- J Rajesh Banu
- Department of Life Science, Central University of Tamil Nadu, Neelakudi, Thiruvarur, Tamil Nadu, 610005, India
| | - V Godvin Sharmila
- Department of Civil Engineering, Rohini College of Engineering and Technology, Kanyakumari, Tamil Nadu, India
| | - R Yukesh Kannah
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, Tamil Nadu, India
| | - R Kanimozhi
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, Tamil Nadu, India
| | - Ashraf Elfasakhany
- Department of Mechanical Engineering, College of Engineering, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - M Gunasekaran
- Department of Physics, Anna University Regional Campus, Tirunelveli, Tamil Nadu, India
| | - S Adish Kumar
- Department of Civil Engineering, University V.O.C College of Engineering, Anna University Thoothukudi Campus, Tamil Nadu, India
| | - Gopalakrishnan Kumar
- School of Civil and Environmental Engineering, Yonsei University, Seoul, 03722, Republic of Korea.
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Rajesh Banu J, Ginni G, Kavitha S, Yukesh Kannah R, Kumar V, Adish Kumar S, Gunasekaran M, Tyagi VK, Kumar G. Polyhydroxyalkanoates synthesis using acidogenic fermentative effluents. Int J Biol Macromol 2021; 193:2079-2092. [PMID: 34774601 DOI: 10.1016/j.ijbiomac.2021.11.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 11/02/2021] [Accepted: 11/04/2021] [Indexed: 11/29/2022]
Abstract
Polyhydroxyalkanoates (PHA) are natural polyesters synthesized by microbes which consume excess amount of carbon and less amount of nutrients. It is biodegradable in nature, and it synthesized from renewable resources. It is considered as a future polymer, which act as an attractive replacement to petrochemical based polymers. The main hindrance to the commercial application of PHA is the high manufacturing cost. This article provides an overview of different cost-effective substrates, their characteristics and composition, major strains involved in economical production of PHA and biosynthetic pathways leading to accumulation of PHA. This review also covers the operational parameters, various fermentative modes including batch, fed-batch, repeated fed-batch and continuous fed-batch systems, along with advanced feeding strategies such as single pulse carbon feeding, feed forward control, intermittent carbon feeding, feast famine conditions to observe their effects for improving PHA synthesis and associated challenges. In addition, it also presents the economic analysis and future perspectives for the commercialization of PHA production process thereby making the process sustainable and lucrative with the possibility of commercial biomanufacturing.
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Affiliation(s)
- J Rajesh Banu
- Department of Life Sciences, Central University of Tamil Nadu, Neelakudi, Thiruvarur, Tamil Nadu 610005, India
| | - G Ginni
- Department of Civil Engineering, Amrita College of Engineering and Technology, Amritagiri, Nagercoil, Tamil Nadu, 629901, India
| | - S Kavitha
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, Tamil Nadu, 627007, India
| | - R Yukesh Kannah
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, Tamil Nadu, 627007, India; Department of Civil Engineering, National Institute of Technology Tiruchirappalli, Tamil Nadu, 620015, India
| | - Vinod Kumar
- School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, United Kingdom
| | - S Adish Kumar
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, Tamil Nadu, 627007, India
| | - M Gunasekaran
- Department of Physics, Anna University Regional Campus, Tirunelveli, Tamil Nadu, 627007, India
| | - Vinay Kumar Tyagi
- Department of Civil Engineering, Indian Institute of Technology Roorkee, Roorkee, India
| | - Gopalakrishnan Kumar
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea; Institute of Chemistry, Bioscience and Environmental Engineering, Faculty of Science and Technology, University of Stavanger, Box 8600 Forus, 4036 Stavanger, Norway.
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Rajesh Banu J, Godvin Sharmila V, Kavitha S, Varjani S, Kumar G, Gunasekaran M. Alkali activated persulfate mediated extracellular organic release on enzyme secreting bacterial pretreatment for efficient hydrogen production. Bioresour Technol 2021; 341:125810. [PMID: 34467891 DOI: 10.1016/j.biortech.2021.125810] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 08/14/2021] [Accepted: 08/16/2021] [Indexed: 06/13/2023]
Abstract
The present investigation is proposed to assess the competency of Sodium Persulphate (SPS) induced enzyme secreting bacterial pretreatment in enhancing the generation of biohydrogen from waste activated sludge (WAS). Alkali activated SPS of dosage 0.015 g/g SS has been opted to disseminate the floc structure to fortify the release of Extracellular polymeric substance (EPS) into aqueous phase. This removal of EPS enhances the bacterial disintegration fostering 18.71% of suspended solids reduction and 21% of COD solubilization which was comparatively higher than bacterially pretreated (BP) and control (C) sludge. Biohydrogen production of control (C), bacterially pretreated (BP) and SPS mediated bacterially pretreated (SPS-BP) sludge were found to be 32.2 mLH2/g COD, 48.3 mLH2/g COD and 103.8 mLH2/g COD respectively. The net energy production of SPS - BP is 0.01 kWh which is higher than the C and BP sample during the entire treatment and obtained energy ratio greater than 1.
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Affiliation(s)
- J Rajesh Banu
- Department of Life Science, Central University of Tamil Nadu, Neelakudi Thiruvarur, Tamil Nadu 610005, India
| | - V Godvin Sharmila
- Department of Civil Engineering, Rohini College of Engineering and Technology, Kanyakumari, Tamil Nadu, India
| | - S Kavitha
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, Tamil Nadu, India
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382010, India
| | - Gopalakrishnan Kumar
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - M Gunasekaran
- Department of Physics, Anna University Regional Campus, Tirunelveli, Tamil Nadu, India.
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Ajees Aboobucker M, Muthu Saravanan N, Mayilraj Sathish R, Aakhash S, Gunasekaran M. Performance Enhancement of Solar Water Heater Incorporated with Latent Heat Storage Material. Advances in Design and Thermal Systems 2021:441-454. [DOI: 10.1007/978-981-33-6428-8_36] [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: 06/16/2023]
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Sathishkumar P, Gunasekaran M. An improved vertical fragmentation, allocation and replication for enhancing
e‐learning
in distributed database environment. Comput Intell 2020. [DOI: 10.1111/coin.12401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- P. Sathishkumar
- Department of CSE Bannari Amman Institute of Technology Sathyamangalam India
| | - M. Gunasekaran
- Department of Information Technology Bannari Amman Institute of Technology Sathyamangalam India
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Sharmila VG, Angappane S, Gunasekaran M, Kumar G, Banu JR. Immobilized ZnO nano film impelled bacterial disintegration of dairy sludge to enrich anaerobic digestion for profitable bioenergy production: Energetic and economic analysis. Bioresour Technol 2020; 308:123276. [PMID: 32251862 DOI: 10.1016/j.biortech.2020.123276] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/27/2020] [Accepted: 03/29/2020] [Indexed: 06/11/2023]
Abstract
Proper treatment and disposal of sludge is a substantial task around the biosphere. To address this issue, sludge deflocculation using photocatalyst was opted to enhance bacterial disintegration which in turn accelerate sludge digestion anaerobically. During this investigation, Direct current (DC) sputtering together with annealing process was used to immobilize Zinc oxide (ZnO). This immobilized ZnO removes the extracellular components at 15 min. The deflocculation mediated bacterial pretreatment induced 22.9% of soluble organics solubilization which auguments the biodegradability to 0.195 g COD/g COD during anaerobic digestion. The quantity of methane generated by deflocculated sludge was 39.2% higher than sludge with bacterial disintegration only with maximum methane yield of 437.14 mL/g COD. Hence, the outcome of the proposed work confirmed that the method is scalable with a net profit of 27 USD with the maximum methane generation of 413.1 kWh. Additionally, this method reduced 57% of dry sludge (solid).
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Affiliation(s)
- V Godvin Sharmila
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, India
| | - S Angappane
- Centre for Nano and Soft Matter Sciences, Bangalore, India
| | - M Gunasekaran
- Department of Physics, Anna University Regional Campus, Tirunelveli, India
| | - Gopalakrishnan Kumar
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - J Rajesh Banu
- Department of Life Sciences, Central University of Tamil Nadu, Neelakudi, Thiruvarur, Tamil Nadu, India.
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16
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Rajesh Banu J, Kavitha S, Gunasekaran M, Kumar G. Microalgae based biorefinery promoting circular bioeconomy-techno economic and life-cycle analysis. Bioresour Technol 2020; 302:122822. [PMID: 32007307 DOI: 10.1016/j.biortech.2020.122822] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [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: 11/27/2019] [Revised: 01/12/2020] [Accepted: 01/13/2020] [Indexed: 06/10/2023]
Abstract
Microalgae are source of third generation biofuel having the key advantage of high lipid productivity. In recent times, biorefinery is seen as promising option to further reduce the production cost of microalgae biofuel. However, exact energy balance analysis has not been performed on important biorefinery routes. In this aspect, three biorefinery routes, all based on lipid based biorefinery route are evaluated for economical production of microalgal biofuel and valorised products. Biorefinery route 1 involves production of biodiesel, pigments, and animal feed. Biorefinery route 2 involves biogas and pigments production and two stage fermentation, and third biorefinery route involves bio-hydrogen and pigments production. Finally, the technoeconomic assessment of three biorefinery routes were reviewed, net energy savings, and life-cycle costing approaches to economize microalgal biorefinery are suggested.
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Affiliation(s)
- J Rajesh Banu
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, India
| | - S Kavitha
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, India
| | - M Gunasekaran
- Department of Physics, Anna University Regional Campus, Tirunelveli, India
| | - Gopalakrishnan Kumar
- Green Processing, Bioremediation and Alternative Energies Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
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17
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Taverna S, Reclusa P, Verstraelen P, De Miguel-Pérez D, Pucci M, Pintelon I, Claes N, Gunasekaran M, Alessandro R, Bals S, Kaushal S, Rolfo C. P1.17 How to Visualize Exosomes in NSCLC: “The New Guest Star in the Liquid Biopsy Movie”. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.09.152] [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: 10/25/2022]
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18
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Kavitha S, Schikaran M, Yukesh Kannah R, Gunasekaran M, Kumar G, Rajesh Banu J. Nanoparticle induced biological disintegration: A new phase separated pretreatment strategy on microalgal biomass for profitable biomethane recovery. Bioresour Technol 2019; 289:121624. [PMID: 31203180 DOI: 10.1016/j.biortech.2019.121624] [Citation(s) in RCA: 5] [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: 05/07/2019] [Revised: 06/06/2019] [Accepted: 06/07/2019] [Indexed: 06/09/2023]
Abstract
This study involves the application of new phase separated biological pretreatment (PSBP) strategy on microalgal biomass using the nickel nanoparticle induced cellulase secreting bacterial disintegration. Particularly, interest was focussed on cell wall weakening (CWW) of microalgae biomass besides the cell disintegration (CD) and release of organics. During CWW, protein, carbohydrate, cellulose, hemicellulose and DNA were used as evaluation indexes. Similarly, during CD, soluble chemical oxygen demand was used as evaluation index to assess the disintegration effect. A higher CWW was achieved at nickel nanoparticle (Np) dosage of 0.004 g/g SS. During CD, a clear demarcation in biomass solubilisation was achieved by PSBP (36%) than the sole biological pretreatment -BP (24%). The biomethanogenesis test results showed that enhanced methane production of 411 mL/g COD was achieved by PSBP than BP. Energy analysis showed that a higher net energy production of 6.467 GJ/d was achieved by PSBP.
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Affiliation(s)
- S Kavitha
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, Tamil Nadu, India
| | - M Schikaran
- Department of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, India
| | - R Yukesh Kannah
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, Tamil Nadu, India
| | - M Gunasekaran
- Department of Physics, Anna University Regional Campus, Tirunelveli, Tamil Nadu, India
| | - Gopalakrishnan Kumar
- Institute of Chemistry, Bioscience and Environmental Engineering, Faculty of Science and Technology, University of Stavanger, Box 8600 Forus, 4036 Stavanger, Norway
| | - J Rajesh Banu
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, Tamil Nadu, India.
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19
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Rajesh Banu J, Kavitha S, Yukesh Kannah R, Poornima Devi T, Gunasekaran M, Kim SH, Kumar G. A review on biopolymer production via lignin valorization. Bioresour Technol 2019; 290:121790. [PMID: 31350071 DOI: 10.1016/j.biortech.2019.121790] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [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: 05/31/2019] [Revised: 07/08/2019] [Accepted: 07/09/2019] [Indexed: 05/22/2023]
Abstract
Lignin based biopolymer (value added products) production is the most promising technology in the perspective of lignin valorization and sustainable development. Valorization of lignin gain the potentials to produce biopolymers such as polyhydroxyalkanoates, polyhydroxybutyrates, polyurethane etc. However, lignin valorization processes still needs development due to the recalcitrant nature of lignin which restricts its potential to produce valuable products. Many novel extraction strategies have been developed to fragment the lignin structure and make ease the recovery of valuable products. Achieving in depth insights on lignin characteristics and structure will help to understand the metabolic and catalytic degradative pathways needed for lignin valorization. In the view of multipurpose characteristics of lignin for biopolymer production, this review will spot light the potential applications of lignin and lignin based derivatives on biopolymer production, various lignin separation technologies, lignin depolymerization process, biopolymers production strategies and the challenges in lignin valorization will be addressed and discussed.
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Affiliation(s)
- J Rajesh Banu
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, India
| | - S Kavitha
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, India
| | - R Yukesh Kannah
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, India
| | - T Poornima Devi
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, India
| | - M Gunasekaran
- Department of Physics, Anna University Regional Campus, Tirunelveli, India
| | - Sang-Hyoun Kim
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Gopalakrishnan Kumar
- Green Processing, Bioremediation and Alternative Energies Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
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20
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21
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Kavitha S, Kannah RY, Gunasekaran M, Nguyen DD, Al-Muhtaseb AH, Park JH, Banu JR. Effect of low intensity sonic mediated fragmentation of anaerobic granules on biosurfactant secreting bacterial pretreatment: Energy and mass balance analysis. Bioresour Technol 2019; 279:156-165. [PMID: 30716608 DOI: 10.1016/j.biortech.2019.01.118] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 12/25/2018] [Revised: 01/23/2019] [Accepted: 01/24/2019] [Indexed: 06/09/2023]
Abstract
In this study, fragmentation of anaerobic granules (AG) was carried out by low intensity sonification (LIS) to release its extracellular polymeric substance (EPS). The experimental outcome of the study shows that 30 s treatment time and 60 W sonic power was effective for fragmentation of AG. The fragmented anaerobic granules were further subjected to pretreatment by biosurfactant secreting bacteria. Bacterial pretreatment achieves a maximum biogranules lysis of 20.3% and biosolids reduction of 17.1% for fragmented anaerobic granules bacterial pretreatment (FAG-BP). Whereas for bacterial pretreatment (BP) alone, it achieves 10.9% and 8.6% of biogranules lysis and biosolids reduction respectively. Exponential first order kinetic model of biomethane production data revealed greater biomethane production for FAG-BP (0.247 g COD/g COD) than BP (0.131 g COD/g COD). Cost analysis of FAG mediated bacterial pretreatment results in a net profit of 48.606 USD/Ton.
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Affiliation(s)
- S Kavitha
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, Tamilnadu, India
| | - R Yukesh Kannah
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, Tamilnadu, India
| | - M Gunasekaran
- Department of Physics, Anna University Regional Campus, Tirunelveli, Tamilnadu, India
| | - Dinh Duc Nguyen
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam; Department of Environmental Energy Engineering, Kyonggi University, Suwon, Republic of Korea
| | - Ala'a H Al-Muhtaseb
- Petroleum and Chemical Engineering Department, Faculty of Engineering, Sultan Qaboos University, Muscat, Oman
| | - Jeong-Hoon Park
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL, USA; School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, South Korea
| | - J Rajesh Banu
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, Tamilnadu, India.
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23
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Godvin Sharmila V, Gunasekaran M, Angappane S, Zhen G, Tae Yeom I, Rajesh Banu J. Evaluation of photocatalytic thin film pretreatment on anaerobic degradability of exopolymer extracted biosolids for biofuel generation. Bioresour Technol 2019; 279:132-139. [PMID: 30716605 DOI: 10.1016/j.biortech.2019.01.124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 12/14/2018] [Revised: 01/24/2019] [Accepted: 01/25/2019] [Indexed: 06/09/2023]
Abstract
This study reports the result of sodium citrate induced exopolymer extraction on the photocatalytic thin film (TiO2) pretreatment efficiency of waste activated sludge (WAS). TiO2 is immobilized through DC spluttering method followed by annealing process. The exopolymer removal of 94.2% by sodium citrate (0.05 g/g SS) promotes better disintegration. This TiO2 thin film efficiently extricate the intracellular components of exopolymer extracted sludge at 50 min increasing the solubilization to 19.33%. As a result, the exopolymer extracted sludge shows high methane generation (0.24 gCOD/gCOD) than the other (pretreated sludge without exopolymer removal - 0.12 gCOD/gCOD and raw sludge without treatment - 0.075 gCOD/gCOD). The methane generated in sodium citrate induced TiO2 thin film pretreated sludge is 398.99 kWh. In cost analysis, it gives net cost of -57.46 USD/ton of sludge. In addition, the proposed method also accounts 51.3% of solid reduction.
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Affiliation(s)
- V Godvin Sharmila
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, India
| | - M Gunasekaran
- Department of Physics, Anna University Regional Campus, Tirunelveli, India
| | - S Angappane
- Centre for Nano and Soft Matter Sciences, Bangalore, India
| | - Guangyin Zhen
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, PR China
| | - Ick Tae Yeom
- Department of Civil and Environmental Engineering, Sungkyunkwan University, Seoul, South Korea
| | - J Rajesh Banu
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, India.
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24
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Rajesh Banu J, Tamilarasan K, Uma Rani R, Gunasekaran M, Cho SK, Al-Muhtaseb AH. Dispersion aided tenside disintegration of seagrass Syringodium isoetifolium: Towards biomethanation, kinetics, energy exploration and evaluation. Bioresour Technol 2019; 277:62-67. [PMID: 30658337 DOI: 10.1016/j.biortech.2019.01.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 12/15/2018] [Revised: 01/07/2019] [Accepted: 01/08/2019] [Indexed: 06/09/2023]
Abstract
In this study, an attempt was made to enhance the biomethanation potential of seagrass (Syringodium isoetifolium) by the aid of disperser-tenside (polysorbate 80) disintegration for the first time in literature. A disperser rpm of 10,000 for 20 min and PS 80 dose of 0.000864 g/g TS were selected as ideal parameters for effectual seagrass biomass disintegration. Dispersion aided tenside disintegration (DTD) with a disperser energy consumption of 349 kJ/kg TS, was observed to be efficacious with a biomass lysis rate of 25.6%. The impact of DTD on bioacidification and biomethanation assay with respect to volatile fatty acids concentration (1100 mg/L) and methane generation (0.256 g/g COD), was greater than dispersion disintegration (DD) (800 mg/L; 0.198 g/g COD). Thus, S. isoetifolium is considered as a promising substrate to attain the third generation biofuel goals in the near future.
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Affiliation(s)
- J Rajesh Banu
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, Tamilnadu, India
| | - K Tamilarasan
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, Tamilnadu, India
| | - R Uma Rani
- Department of Civil Engineering, Ponjesly College of Engineering, Nagercoil, Tamilnadu, India
| | - M Gunasekaran
- Department of Physics, Anna University Regional Campus, Tirunelveli, Tamilnadu, India
| | - Si-Kyung Cho
- Department of Biological and Environmental Science, Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyang, Gyeonggi-do 10326, Republic of Korea
| | - Ala'a H Al-Muhtaseb
- Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, Muscat, Oman
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25
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Rajesh Banu J, Kannah RY, Kavitha S, Gunasekaran M, Kumar G. Novel insights into scalability of biosurfactant combined microwave disintegration of sludge at alkali pH for achieving profitable bioenergy recovery and net profit. Bioresour Technol 2018; 267:281-290. [PMID: 30025325 DOI: 10.1016/j.biortech.2018.07.046] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 06/03/2018] [Revised: 07/08/2018] [Accepted: 07/09/2018] [Indexed: 06/08/2023]
Abstract
In the present study, a novel alkali rhamnolipid combined microwave disintegration (ARMD) was employed to achieve net energy production, increased liquefaction and to increase the amenability of sludge towards biomethanation. Additionally, biosurfactant rhamnolipid under alkali conditions enhances the liquefaction at alkali pH of 10 with a maximal liquefaction of 55% with reduced energy consumption (1620 kJ/kg TS) than RMD (45.7% and 3240 kJ/kg TS specific energy) and MD (33.7% and 6480 kJ/kg TS specific energy). A higher biomethane production of 379 mL/g COD was achieved for ARMD when compared to RMD (329 mL/g COD) and MD (239 mL/g COD). The scalable studies imply that the ARMD demands input energy of -282.27 kWh. A net yield of (0.39 USD/ton) was probably achieved via novel ARMD technique indicating its suitability at large scale execution when compared to RMD (net cost -31.34 USD/ton) and MD (-84.23 net cost USD/ton), respectively.
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Affiliation(s)
- J Rajesh Banu
- Department of Civil Engineering, Regional Campus Anna University Tirunelveli, Tamilnadu, India
| | - R Yukesh Kannah
- Department of Civil Engineering, Regional Campus Anna University Tirunelveli, Tamilnadu, India
| | - S Kavitha
- Department of Civil Engineering, Regional Campus Anna University Tirunelveli, Tamilnadu, India
| | - M Gunasekaran
- Department of Physics, Regional Campus Anna University Tirunelveli, Tamilnadu, India
| | - Gopalakrishnan Kumar
- Green Processing, Bioremediation and Alternative Energies Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
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Banu JR, Yukesh Kannah R, Dinesh Kumar M, Gunasekaran M, Sivagurunathan P, Park JH, Kumar G. Recent advances on biogranules formation in dark hydrogen fermentation system: Mechanism of formation and microbial characteristics. Bioresour Technol 2018; 268:787-796. [PMID: 30025888 DOI: 10.1016/j.biortech.2018.07.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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: 05/15/2018] [Revised: 07/06/2018] [Accepted: 07/07/2018] [Indexed: 06/08/2023]
Abstract
Hydrogen producing granules (HPGs) are most promising biological methods used to treat organic rich wastes and generate clean hydrogen energy. This review provides information regarding types of immobilization, supporting materials and microbiome involved on HPG formation and its performances. In this review, importance has been given to three kinds of immobilization techniques such as adsorption, encapsulation, and entrapment. The HPG, characteristics and types of organic and inorganic supporting materials followed for enhancing hydrogen yield were also discussed. This review also considers the applications of HPG for sustainable and high rate hydrogen production. A detailed discussion on insight of key mechanism for HPGs formation and its performances for stable operation of high rate hydrogen production system are also provided.
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Affiliation(s)
- J Rajesh Banu
- Department of Civil Engineering, Regional Campus Anna University Tirunelveli, Tamilnadu, India
| | - R Yukesh Kannah
- Department of Civil Engineering, Regional Campus Anna University Tirunelveli, Tamilnadu, India
| | - M Dinesh Kumar
- Department of Civil Engineering, Regional Campus Anna University Tirunelveli, Tamilnadu, India
| | - M Gunasekaran
- Department of Physics, Regional Campus Anna University Tirunelveli, Tamilnadu, India
| | | | - Jeong-Hoon Park
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, South Korea
| | - Gopalakrishnan Kumar
- Green Processing, Bioremediation and Alternative Energies Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
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Affiliation(s)
- T. Sambandam
- Department of Biology, Fisk University, Nashville, Tennessee 37203
| | - M. Gunasekaran
- Department of Biology, Fisk University, Nashville, Tennessee 37203
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Affiliation(s)
- M. Gunasekaran
- Infectious Diseases Service, St. Jude Children's Research Hospital, Memphis, Tennessee 38101
| | - Walter T. Hughes
- Infectious Diseases Service, St. Jude Children's Research Hospital, Memphis, Tennessee 38101
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Affiliation(s)
- M. Gunasekaran
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee 38101
| | - Darrell J. Weber
- Department of Botany and Range Science, Brigham Young University, Provo, Utah 84602
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30
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Affiliation(s)
- M. Gunasekaran
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee 38101
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31
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Affiliation(s)
- M. Gunasekaran
- Department of Botany and Range Science, Brigham Young University, Provo, Utah 84601
| | - D. J. Weber
- Department of Botany and Range Science, Brigham Young University, Provo, Utah 84601
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32
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Ushani U, Kavitha S, Yukesh Kannah R, Gunasekaran M, Kumar G, Nguyen DD, Chang SW, Rajesh Banu J. Sodium thiosulphate induced immobilized bacterial disintegration of sludge: An energy efficient and cost effective platform for sludge management and biomethanation. Bioresour Technol 2018; 260:273-282. [PMID: 29631177 DOI: 10.1016/j.biortech.2018.03.118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 02/16/2018] [Revised: 03/24/2018] [Accepted: 03/27/2018] [Indexed: 06/08/2023]
Abstract
The present study aimed to gain better insights into profitable biomethanation through sodium thiosulphate induced immobilized protease secreting bacterial disintegration (STS-IPBD) of sludge. STS disperse the flocs at 0.08 g/g SS of dosage and assists the subsequent bacterial disintegration. Immobilization of bacteria increases the hydrolytic activity of cells towards effective liquefaction of sludge. A higher liquefaction of 22% was accomplished for STS-IPBD when compared to immobilized protease secreting bacterial disintegration (IPBD alone). The kinetic parameters of Line Weaver Burk plot analysis revealed a maximal specific growth rate (µmax) of 0.320 h-1 for immobilized cells when compared to suspended free cells showing the benefit of immobilization. Floc dispersion and immobilization of bacteria imparts a major role in biomethanation as the methane generation (0.32 gCOD/g COD) was higher in STS-IPBD sample. The cost analysis showed that STS - IPBD was a feasible process with net profit of 2.6 USD/Ton of sludge.
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Affiliation(s)
- U Ushani
- Department of Biotechnology, Karpagam Academy of Higher Education (KAHE), Pollache Main Road, Eachanari Post, Coimbatore, India
| | - S Kavitha
- Department of Civil Engineering, Regional Campus, Anna University, Tirunelveli, India
| | - R Yukesh Kannah
- Department of Civil Engineering, Regional Campus, Anna University, Tirunelveli, India
| | - M Gunasekaran
- Department of Physics, Regional Campus, Anna University, Tirunelveli, India
| | - Gopalakrishnan Kumar
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Dinh Duc Nguyen
- Department of Environmental Energy Engineering, Kyonggi University, Suwon, Republic of Korea
| | - Soon Woong Chang
- Department of Environmental Energy Engineering, Kyonggi University, Suwon, Republic of Korea
| | - J Rajesh Banu
- Department of Civil Engineering, Regional Campus, Anna University, Tirunelveli, India.
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Hassan MK, El Desouky AI, Badawy MM, Sarhan AM, Elhoseny M, Gunasekaran M. EoT-driven hybrid ambient assisted living framework with naïve Bayes–firefly algorithm. Neural Comput Appl 2018. [DOI: 10.1007/s00521-018-3533-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [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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Gunasekaran M, Sharma M, Rodriguez F, Elnahas S, Hachem R, Walia R, Smith M, Bremner R, Mohanakumar T. Distinct Phenotypic, Molecular and Immune Characteristics of Circulating Exosomes From Lung Transplant Recipients With Bronchiolitis Obliterans Syndrome versus Stable Patients. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.499] [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: 10/17/2022] Open
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35
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Abdel-Basset M, Gunasekaran M, Mohamed M, Smarandache F. A novel method for solving the fully neutrosophic linear programming problems. Neural Comput Appl 2018. [DOI: 10.1007/s00521-018-3404-6] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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36
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Sharmila VG, Dhanalakshmi P, Rajesh Banu J, Kavitha S, Gunasekaran M. Effect of deflocculation on photo induced thin layer titanium dioxide disintegration of dairy waste activated sludge for cost and energy efficient methane production. Bioresour Technol 2017; 244:776-784. [PMID: 28822951 DOI: 10.1016/j.biortech.2017.08.030] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 08/05/2017] [Accepted: 08/07/2017] [Indexed: 06/07/2023]
Abstract
In the present study, the deflocculated sludge was disintegrated through thin layer immobilized titanium dioxide (TiO2) as photocatalyst under solar irradiation. The deflocculation of sludge was carried out by 0.05g/g SS of sodium citrate aiming to facilitate more surface area for subsequent TiO2 mediated disintegration. The proposed mode of disintegration was investigated by varying TiO2 dosage, pH and time. The maximum COD solubilization of 18.4% was obtained in the optimum 0.4g/L of TiO2 dosage with 5.5 pH and exposure time of 40min. Anaerobic assay of disintegrated samples confirms the role of deflocculation as methane yield was found to be higher in deflocculated (235.6mL/gVS) than the flocculated sludge (146.8mL/gVS). Moreover, the proposed method (Net cost for control - Net cost for deflocculation) saves sludge management cost of about $132 with 53.8% of suspended solids (SS) reduction.
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Affiliation(s)
- V Godvin Sharmila
- Department of Civil Engineering, Regional Centre of Anna University, Tirunelveli, India
| | - P Dhanalakshmi
- Department of Civil Engineering, Regional Centre of Anna University, Tirunelveli, India
| | - J Rajesh Banu
- Department of Civil Engineering, Regional Centre of Anna University, Tirunelveli, India.
| | - S Kavitha
- Department of Civil Engineering, Regional Centre of Anna University, Tirunelveli, India
| | - M Gunasekaran
- Department of Physics, Regional Centre of Anna University, Tirunelveli, India
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Gunasekaran M, Sharma M, Bansal S, Walia R, Bremner R, Smith M, Mohanakumar T. Antibodies to Human Leukocyte Antigen Class I and Lung Associated Self-Antigens, K-alpha-1 Tubulin and Collagen V Induces Exosomes Containing Self-Antigens from Human Primary Airway Epithelial and Endothelial Cells. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.338] [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: 10/19/2022] Open
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Gunasekaran M, Sharma M, Bansal S, Walia R, Smith M, Bremner R, Mohanakumar T. Exosomes Isolated from Lung Transplant Recipients Diagnosed with Bronchiolitis Obliterans Syndrome, But Not Stable, Can Induce Immune Responses to Lung Associated Self-Antigens, K-alpha-1 Tubulin and Collagen V. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.339] [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] Open
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39
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Gunasekaran M, Limaye A, Sharma M, Bansal S, Walia R, Smith M, Bremner R, Mohanakumar T. Novel Mechanism for the Increased Risk for Chronic Lung Allograft Dysfunction by Respiratory Viral Infections Following Human Lung Transplantation. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.336] [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: 10/19/2022] Open
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40
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Gunasekaran M, Xu Z, Nayak D, Sharma M, Hachem R, Walia R, Bremner RM, Smith MA, Mohanakumar T. Donor-Derived Exosomes With Lung Self-Antigens in Human Lung Allograft Rejection. Am J Transplant 2017; 17:474-484. [PMID: 27278097 PMCID: PMC5340154 DOI: 10.1111/ajt.13915] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [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: 04/15/2016] [Revised: 06/02/2016] [Accepted: 06/04/2016] [Indexed: 01/25/2023]
Abstract
The immunological role of exosomes in allograft rejection remains unknown. We sought to determine whether exosomes are induced during lung allograft rejection and to define the antigenic compositions of HLA, lung-associated self-antigens (SAgs) and microRNAs (miRNAs). Exosomes were isolated from sera and bronchoalveolar lavage fluid from 30 lung transplant recipients (LTxRs) who were stable or who had acute rejection (AR) or bronchiolitis obliterans syndrome (BOS). Exosomes were defined by flow cytometry for CD63 and western blotting for annexin V SAgs, collagen V (Col-V) and Kα1 tubulin were examined by electron microscopy; miRNAs were profiled by a miRNA array. Donor HLA and SAgs were detected on exosomes from LTxRs with AR and BOS but not from stable LTxRs. Exosomes expressing Col-V were isolated from sera from LTxRs 3 mo before AR and 6 mo before BOS diagnosis, suggesting that exosomes with SAgs may be a noninvasive rejection biomarker. Exosomes isolated from LTxRs with AR or BOS also contained immunoregulatory miRNAs. We concluded that exosomes expressing donor HLA, SAgs and immunoregulatory miRNAs are present in the circulation and local site after human lung transplantation and play an important role in the immune pathogenesis of acute allograft rejection and BOS.
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Affiliation(s)
- M. Gunasekaran
- Norton Thoracic Institute St. Joseph’s Hospital and Medical Center Phoenix, Arizona
| | - Z. Xu
- Norton Thoracic Institute St. Joseph’s Hospital and Medical Center Phoenix, Arizona
| | - D. Nayak
- Norton Thoracic Institute St. Joseph’s Hospital and Medical Center Phoenix, Arizona
| | - M. Sharma
- Norton Thoracic Institute St. Joseph’s Hospital and Medical Center Phoenix, Arizona
| | - R. Hachem
- Division of Pulmonary and Critical Care Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - R. Walia
- Norton Thoracic Institute St. Joseph’s Hospital and Medical Center Phoenix, Arizona
| | - R. M. Bremner
- Norton Thoracic Institute St. Joseph’s Hospital and Medical Center Phoenix, Arizona
| | - M. A. Smith
- Norton Thoracic Institute St. Joseph’s Hospital and Medical Center Phoenix, Arizona
| | - T. Mohanakumar
- Norton Thoracic Institute St. Joseph’s Hospital and Medical Center Phoenix, Arizona
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Xu Z, Ramachandran S, Gunasekaran M, Nayak D, Benshoff N, Hachem R, Gelman A, Mohanakumar T. B Cell-Activating Transcription Factor Plays a Critical Role in the Pathogenesis of Anti-Major Histocompatibility Complex-Induced Obliterative Airway Disease. Am J Transplant 2016; 16:1173-82. [PMID: 26844425 PMCID: PMC4803590 DOI: 10.1111/ajt.13595] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 10/22/2015] [Accepted: 10/24/2015] [Indexed: 01/25/2023]
Abstract
Antibodies (Abs) against major histocompatibility complex (MHC) results in T helper-17 (Th17)-mediated immunity against lung self-antigens (SAgs), K-α1 tubulin and collagen V and obliterative airway disease (OAD). Because B cell-activating transcription factor (BATF) controls Th17 and autoimmunity, we proposed that BATF may play a critical role in OAD. Anti-H2K(b) was administered intrabronchially into Batf (-/-) and C57BL/6 mice. Histopathology of the lungs on days 30 and 45 after Ab administration to Batf (-/-) mice resulted in decreased cellular infiltration, epithelial metaplasia, fibrosis, and obstruction. There was lack of Abs to SAgs, reduction of Sag-specific interleukin (IL)-17 T cells, IL-6, IL-23, IL-17, IL-1β, fibroblast growth factor-6, and CXCL12 and decreased Janus kinase 2, signal transducer and activator of transcription 3 (STAT3), and retinoid-related orphan receptor γT. Further, micro-RNA (miR)-301a, a regulator of Th17, was reduced in Batf (-/-) mice in contrast to upregulation of miR-301a and downregulation of protein inhibitor of activated STAT3 (PIAS3) in anti-MHC-induced OAD animals. We also demonstrate an increase in miR-301a in the bronchoalveolar lavage cells from lung transplant recipients with Abs to human leukocyte antigen. This was accompanied by reduction in PIAS3 mRNA. Therefore, we conclude that BATF plays a critical role in the immune responses to SAgs and pathogenesis of anti-MHC-induced rejection. Targeting BATF should be considered for preventing chronic rejection after human lung transplantation.
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Affiliation(s)
- Z. Xu
- Department of Surgery, Washington University School of Medicine, St. Louis, MO 63110
| | - S. Ramachandran
- Department of Surgery, Washington University School of Medicine, St. Louis, MO 63110
| | - M. Gunasekaran
- Department of Surgery, Washington University School of Medicine, St. Louis, MO 63110
| | - D. Nayak
- Department of Surgery, Washington University School of Medicine, St. Louis, MO 63110
| | - N. Benshoff
- Department of Surgery, Washington University School of Medicine, St. Louis, MO 63110
| | - R. Hachem
- Department of Medicine Washington University School of Medicine, St. Louis, MO 63110
| | - A. Gelman
- Department of Surgery, Washington University School of Medicine, St. Louis, MO 63110,Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110
| | - T. Mohanakumar
- Department of Surgery, Washington University School of Medicine, St. Louis, MO 63110,Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110,Correspondence to: Thalachallour Mohanakumar, PhD, Washington University School of Medicine, Department of Surgery, Box 8109-3328 CSRB, 660S Euclid Avenue, St. Louis, MO 63110, USA. Telephone: 314-362-8463. Fax: 314-747-1560.
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Sharma M, Gunasekaran M, Xu Z, Liu W, Benshoff N, Mohanakumar T. Exosomes from Rejected Syngeneic Cardiac Grafts Express Myosin and Vimentin and Immunoregulatory miRNA and Induce Graft Rejection. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.253] [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] Open
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Anitha R, Gunasekaran M, Kumar SS, Athimoolam S, Sridhar B. Single crystal XRD, vibrational and quantum chemical calculation of pharmaceutical drug paracetamol: A new synthesis form. Spectrochim Acta A Mol Biomol Spectrosc 2015; 150:488-498. [PMID: 26072380 DOI: 10.1016/j.saa.2015.05.091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 11/28/2014] [Revised: 05/20/2015] [Accepted: 05/24/2015] [Indexed: 06/04/2023]
Abstract
The common house hold pharmaceutical drug, paracetamol (PAR), has been synthesized from 4-chloroaniline as a first ever report. After the synthesis, good quality single crystals were obtained for slow evaporation technique under the room temperature. The crystal and molecular structures were re-determined by the single crystal X-ray diffraction. The vibrational spectral measurements were carried out using FT-IR and FT-Raman spectroscopy in the range of 4000-400 cm(-1). The single crystal X-ray studies shows that the drug crystallized in the monoclinic system polymorph (Form-I). The crystal packing is dominated by N-H⋯O and O-H⋯O classical hydrogen bonds. The ac diagonal of the unit cell features two chain C(7) and C(9) motifs running in the opposite directions. These two chain motifs are cross-linked to each other to form a ring R4(4)(22) motif and a chain C2(2)(6) motif which is running along the a-axis of the unit cell. Along with the classical hydrogen bonds, the methyl group forms a weak C-H⋯O interactions in the crystal packing. It offers the support for molecular assembly especially in the hydrophilic regions. Further, the strength of the hydrogen bonds are studied the shifting of vibrational bands. Geometrical optimizations of the drug molecule were done by the Density Functional Theory (DFT) using the B3LYP function and Hartree-Fock (HF) level with 6-311++G(d,p) basis set. The optimized molecular geometry and computed vibrational spectra are compared with experimental results which show significant agreement. The factor group analysis of the molecule was carried out by the various molecular symmetry, site and factor group species using the standard correlation method. The Natural Bond Orbital (NBO) analysis was carried out to interpret hyperconjugative interaction and intramolecular charge transfer (ICT). The chemical softness, chemical hardness, electro-negativity, chemical potential and electrophilicity index of the molecule were found out first time by HOMO-LUMO plot. The frontier orbitals shows lower band gap values signify the possible biological/pharmaceutical activity of the molecule. The thermodynamical properties are also obtained from the calculated frequencies of the optimized structures.
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Affiliation(s)
- R Anitha
- Department of Physics, Regional Centre, Anna University Tirunelveli Region, Tirunelveli 627 007, India
| | - M Gunasekaran
- Department of Physics, Regional Centre, Anna University Tirunelveli Region, Tirunelveli 627 007, India
| | - S Suresh Kumar
- Department of Physics, University College of Engineering Nagercoil, Anna University, Nagercoil 629 004, India
| | - S Athimoolam
- Department of Physics, University College of Engineering Nagercoil, Anna University, Nagercoil 629 004, India.
| | - B Sridhar
- Laboratory of X-ray Crystallography, Indian Institute of Chemical Technology, Hyderabad 500 007, India
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Anitha R, Athimoolam S, Gunasekaran M. A strong NH…Br vibrational behaviour studied through X-ray, vibrational spectra and quantum chemical studies in an isomorphous crystal: 2-Nitroanilinium bromide. Spectrochim Acta A Mol Biomol Spectrosc 2015; 138:753-762. [PMID: 25544191 DOI: 10.1016/j.saa.2014.11.077] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 04/11/2014] [Revised: 10/29/2014] [Accepted: 11/23/2014] [Indexed: 06/04/2023]
Abstract
A needle shaped transparent light brown crystals of 2-nitroanilinium bromide were successfully synthesized and crystallized from an aqueous mixture by slow evaporation technique. Single crystal XRD studies confirm the crystalline phase of this isomorphous compound which contains a positively charge 2-nitroanilinium cation and a negatively charged bromide anion. The solid phase FT-IR and FT-Raman spectra of the compound have been recorded in the range of 4000-400cm(-1). The observed modes are correlated by the factor group theory analysis and different IR and Raman active species were identified. Geometrical optimisations were carried out and harmonic vibrational wave numbers were computed for the minimum energy molecular structure at RHF level invoking 6-311++G(d,p) and SDD basis sets. Optimised molecular geometry was compared with the crystallographic data. The calculated wavenumbers were compared with the experimental values. The NH vibrational bands are shifted from its normal range and the shifting is associated with the influence of the intermolecular hydrogen bonds in the crystal. A strong intensity peak in theoretical and corresponding band in experimental confirms the presence of NH…Br interaction as predicted in crystalline state.
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Affiliation(s)
- R Anitha
- Department of Physics, Regional Centre, Anna University Tirunelveli Region, Tirunelveli 627 007, India
| | - S Athimoolam
- Department of Physics, University College of Engineering, Nagercoil, Anna University, Nagercoil 629 004, India.
| | - M Gunasekaran
- Department of Physics, Regional Centre, Anna University Tirunelveli Region, Tirunelveli 627 007, India
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Anitha R, Athimoolam S, Gunasekaran M, Anitha K. X-ray, vibrational spectra and quantum chemical studies on a new semiorganic crystal: 4-Chloroanilinium perchlorate. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.07.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Lopez D, Gunasekaran M, Murugan BS, Kaur H, Abbas KM. Spatial Big Data Analytics of Influenza Epidemic in Vellore, India. Proc IEEE Int Conf Big Data 2014; 2014. [PMID: 26203465 PMCID: PMC4508194 DOI: 10.1109/bigdata.2014.7004422] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/21/2023]
Abstract
The study objective is to develop a big spatial data model to predict the epidemiological impact of influenza in Vellore, India. Large repositories of geospatial and health data provide vital statistics on surveillance and epidemiological metrics, and valuable insight into the spatiotemporal determinants of disease and health. The integration of these big data sources and analytics to assess risk factors and geospatial vulnerability can assist to develop effective prevention and control strategies for influenza epidemics and optimize allocation of limited public health resources. We used the spatial epidemiology data of the HIN1 epidemic collected at the National Informatics Center during 2009-2010 in Vellore. We developed an ecological niche model based on geographically weighted regression for predicting influenza epidemics in Vellore, India during 2013-2014. Data on rainfall, temperature, wind speed, humidity and population are included in the geographically weighted regression analysis. We inferred positive correlations for H1N1 influenza prevalence with rainfall and wind speed, and negative correlations for H1N1 influenza prevalence with temperature and humidity. We evaluated the results of the geographically weighted regression model in predicting the spatial distribution of the influenza epidemic during 2013-2014.
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Ramachandran S, Gunasekaran M, Hachem R, Mohanakumar T. MicroRNA, miR144 Dysregulates TGf-b Signaling Cascade and Contributes to Development of BOS Following Human Lung Transplantation. Transplantation 2014. [DOI: 10.1097/00007890-201407151-00905] [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: 11/25/2022]
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Affiliation(s)
- M. Gunasekaran
- Department of Computer Applications, Park College of Engineering and Technology, Coimbatore, India
| | - K.S. Ramaswami
- Department of Mathematics, Coimbatore Institute of Technology, Coimbatore, India
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Anitha R, Athimoolam S, Gunasekaran M, Sridhar B. 4-Sulfamoylanilinium perchlorate. Acta Crystallogr Sect E Struct Rep Online 2013; 69:o1236. [PMID: 24109327 PMCID: PMC3793740 DOI: 10.1107/s1600536813017972] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2013] [Accepted: 06/29/2013] [Indexed: 06/02/2023]
Abstract
In the crystal of the title salt, C6H9N2O2S(+)·ClO4 (-), the components are linked by N-H⋯O hydrogen bonds, forming a three-dimensional network. The cations are connected along a and b axes, leading to linear and zigzag C(3) and C(8) chain motifs, respectively. A cation-anion inter-action along the c axis leads to a C 2 (2)(12) chain motif. R 3 (3)(18) and R 3 (3)(20) ring motifs are observed as cation-anion-type inter-actions. These hydrogen-bonding ring and chain motifs are localized at z = 0 or 1, leading to alternate hydro-philic and hydro-phobic regions along the c axis as a result of the stacking of anions and the aromatic cationic parts.
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Affiliation(s)
- R. Anitha
- Department of Physics, Regional centre of Anna University, Tirunelveli Region, Tirunelveli 627 007, India
| | - S. Athimoolam
- Department of Physics, University College of Engineering, Nagercoil, Anna University, Tirunelveli Region, Nagercoil 629 004, India
| | - M. Gunasekaran
- Department of Physics, Regional centre of Anna University, Tirunelveli Region, Tirunelveli 627 007, India
| | - B. Sridhar
- Laboratory of X-ray Crystallography, Indian Institute of Chemical Technology, Hyderabad 500 607, India
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Anitha R, Athimoolam S, Bahadur SA, Gunasekaran M. 4-Chloro-anilinium 3-carb-oxy-prop-2-enoate. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o959-o960. [PMID: 22590019 PMCID: PMC3343938 DOI: 10.1107/s1600536812008458] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Accepted: 02/25/2012] [Indexed: 05/31/2023]
Abstract
In the title compound, C(6)H(7)ClN(+)·C(4)H(3)O(4) (-), the cations and anions lie on mirror planes and hence only half of the mol-ecules are present in the asymmeric unit. The 4-chloro-anilinium cation and hydrogen maleate anion in the asymmetric unit are each planar and are oriented at an angle of 15.6 (1)° to one another and perpendicular to the b axis. A characterestic intra-molecular O-H⋯O hydrogen bond, forming an S(7) motif, is observed in the maleate anion. In the crystal, the cations and anions are linked by N-H⋯O hydrogen bonds, forming layers in the ab plane. The aromatic rings of the cations are sandwiched between hydrogen-bonded chains and rings formed through the amine group of the cation and maleate anions, leading to alternate hydro-phobic (z = 0 or 1) and hydro-philic layers (z = 1/2) along the c axis.
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Affiliation(s)
- R. Anitha
- Department of Physics, Anna University of Technology Tirunelveli, Tirunelveli 627 007, India
| | - S. Athimoolam
- Department of Physics, University College of Engineering Nagercoil, Anna University of Technology Tirunelveli, Nagercoil 629 004, India
| | - S. Asath Bahadur
- Department of Physics, Kalasalingam University, Anand Nagar, Krishnan Koil 626 126, India
| | - M. Gunasekaran
- Department of Physics, Anna University of Technology Tirunelveli, Tirunelveli 627 007, India
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