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Sujish D, Joseph J, Mythili M, Muralidharan B, Ponraju D. Modeling and validation studies on solidification of sodium nitrate and LiCl‐KCl. Chem Eng Technol 2023. [DOI: 10.1002/ceat.202200483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- D. Sujish
- Indira Gandhi Centre for Atomic Research Kalpakkam 603102 Tamilnadu India
- Training school complex Homi Bhabha National Institute Anushakthinagar Mumbai 400094 India
| | - Joby Joseph
- Indira Gandhi Centre for Atomic Research Kalpakkam 603102 Tamilnadu India
| | - M. Mythili
- Indira Gandhi Centre for Atomic Research Kalpakkam 603102 Tamilnadu India
| | - B. Muralidharan
- Indira Gandhi Centre for Atomic Research Kalpakkam 603102 Tamilnadu India
| | - D. Ponraju
- Indira Gandhi Centre for Atomic Research Kalpakkam 603102 Tamilnadu India
- Training school complex Homi Bhabha National Institute Anushakthinagar Mumbai 400094 India
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Avinash C, Singh K, Rao EH, Malarvizhi B, Das SK, Kumar RS, Lydia G, Ponraju D, Nashine B, Athmalingam S, Venkatraman B. Out-of-pile experiments for design validation of material irradiation test loop. ANN NUCL ENERGY 2022. [DOI: 10.1016/j.anucene.2021.108925] [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: 11/01/2022]
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Hemanth Rao E, Shukla PK, Venkat Reddy G, Murthy S, Kumaresan M, Das SK, Lydia G, Ponraju D, Athmalingam S, Venkatraman B. Generation of simulated corium using thermite process. ANN NUCL ENERGY 2021. [DOI: 10.1016/j.anucene.2021.108558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Jhade V, Shukla PK, Jasmin Sudha A, Sharma AK, Rao EH, Das SK, Lydia G, Ponraju D, Nashine B, Selvaraj P. Design of core catchers for sodium cooled FBRs – Challenges. Nuclear Engineering and Design 2020. [DOI: 10.1016/j.nucengdes.2019.110473] [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] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Pradeep A, Sharma AK, Rajiniganth MP, Malathi N, Sivaramakrishna M, Ponraju D, Nashine BK, Selvaraj P. NUMERICAL AND EXPERIMENTAL INVESTIGATION OF AIR-WATER SYSTEM TO SIMULATE BUBBLE DYNAMICS IN LIQUID SODIUM POOL. Braz J Chem Eng 2019. [DOI: 10.1590/0104-6632.20190364s20190268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
| | | | | | - N. Malathi
- Indira Gandhi Centre for Atomic Research, India
| | | | - D. Ponraju
- Indira Gandhi Centre for Atomic Research, India
| | | | - P. Selvaraj
- Indira Gandhi Centre for Atomic Research, India
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Divakaran S, Ponraju D, Varughese S, Swaminathan T. Parametric studies for strontium separation and volume reduction of a simulated nuclear waste solution. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1433687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - D Ponraju
- Indira Gandhi Centre for Atomic Research, Kalpakkam, India
| | - Susy Varughese
- Department of Chemical Engineering, Indian Institute of Technology, Madras, Chennai, India
| | - T Swaminathan
- Department of Chemical Engineering, Indian Institute of Technology, Madras, Chennai, India
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Sudha AJ, Kumaresan M, Anandan J, Murthy S, Malarvizhi B, Lydia G, Ponraju D, Nashine B, Selvaraj P. Experimental simulation of downward molten material relocation by jet ablation of structures and fuel coolant interaction in a fast reactor. Progress in Nuclear Energy 2018. [DOI: 10.1016/j.pnucene.2018.01.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Shukla PK, Hemanth Rao E, Vetrivendan E, Anne RS, Das SK, Malarvizhi B, Ponraju D, Nashine B, Kamachi Mudali U, Selvaraj P. Evaluation of plasma sprayed sacrificial thermal barrier coatings for core catcher of future Sodium cooled Fast Reactors. ANN NUCL ENERGY 2017. [DOI: 10.1016/j.anucene.2017.04.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ilaiyaraja P, Deb AKS, Ponraju D, Ali SM, Venkatraman B. Surface Engineering of PAMAM-SDB Chelating Resin with Diglycolamic Acid (DGA) Functional Group for Efficient Sorption of U(VI) and Th(IV) from Aqueous Medium. J Hazard Mater 2017; 328:1-11. [PMID: 28073058 DOI: 10.1016/j.jhazmat.2017.01.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 12/31/2016] [Accepted: 01/02/2017] [Indexed: 06/06/2023]
Abstract
A novel chelating resin obtained via growth of PAMAM dendron on surface of styrene divinyl benzene resin beads, followed by diglycolamic acid functionalization of the dendrimer terminal. Batch experiments were conducted to study the effects of pH, nitric acid concentration, amount of adsorbent, shaking time, initial metal ion concentration and temperature on U(VI) and Th(IV) adsorption efficiency. Diglycolamic acid terminated PAMAM dendrimer functionalized styrene divinylbenzene chelating resin (DGA-PAMAM-SDB) is found to be an efficient candidate for the removal of U(VI) and Th(IV) ions from aqueous (pH >4) and nitric acid media (>3M). The sorption equilibrium could be reached within 60min, and the experimental data fits with pseudo-second-order model. Langmuir sorption isotherm model correlates well with sorption equilibrium data. The maximum U(VI) and Th(IV) sorption capacity onto DGA-PAMAMG5-SDB was estimated to be about 682 and 544.2mgg-1 respectively at 25°C. The interaction of actinides and chelating resin is reversible and hence, the resin can be regenerated and reused. DFT calculation on the interaction of U(VI) and Th(IV) ions with chelating resin validates the experimental findings.
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Affiliation(s)
| | - A K Singha Deb
- Chemical Engineering Division, Bhabha Atomic Research Centre, Mumbai, India
| | - D Ponraju
- Safffety Engineering Division, Indira Gandhi Centre for Atomic Research, Kalpakkam, India
| | - Sk Musharaf Ali
- Chemical Engineering Division, Bhabha Atomic Research Centre, Mumbai, India
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Shrestha R, Palat A, Punnoose AM, Joshi S, Ponraju D, Paul SF. Electrospun cellulose acetate phthalate nanofibrous scaffolds fabricated using novel solvent combinations biocompatible for primary chondrocytes and neurons. Tissue Cell 2016; 48:634-643. [DOI: 10.1016/j.tice.2016.07.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 05/31/2016] [Accepted: 07/28/2016] [Indexed: 11/25/2022]
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Kesavan A, Ilaiyaraja P, Sofi Beaula W, Veena Kumari V, Sugin Lal J, Arunkumar C, Anjana G, Srinivas S, Ramesh A, Rayala SK, Ponraju D, Venkatraman G. Tumor targeting using polyamidoamine dendrimer-cisplatin nanoparticles functionalized with diglycolamic acid and herceptin. Eur J Pharm Biopharm 2015; 96:255-63. [PMID: 26277659 DOI: 10.1016/j.ejpb.2015.08.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [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: 05/27/2015] [Revised: 07/29/2015] [Accepted: 08/03/2015] [Indexed: 01/02/2023]
Abstract
Polymer mediated drug delivery system represents a novel promising platform for tumor-targeting with reduced systemic side effects and improved chemotherapeutical efficacy. In this study, we report the preparation and characterization of herceptin targeted, diglycolamic acid (DGA) functionalized polyamidoamine (PAMAM) dendrimer as a potent drug carrier for cisplatin. DGA dendrimers carrying cisplatin demonstrated enhanced anticancer activity when targeted with herceptin. In vitro cell line studies with herceptin-DGA-G4-cisplatin in HER-2 +ve and HER-2 -ve human ovarian cancer cell lines showed that these nanoparticles possessed remarkable features such as lower IC50 value, improved S-phase arrest, and enhanced apoptosis due to increased cellular uptake and accumulation than the untargeted DGA-G4-cisplatin and free cisplatin. Furthermore, in vivo results in SCID mice bearing SKOV-3 tumor xenografts, herceptin-DGA-G4-cisplatin, appeared to be more effective in inducing tumor regression as compared to free cisplatin. Collectively, these results indicate that herceptin targeted DGA functionalized PAMAM-cisplatin conjugates serve as better anti-tumor agents than individual therapeutic agents.
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Affiliation(s)
- Akila Kesavan
- Department of Human Genetics, Sri Ramachandra University, Chennai 600116, Tamil Nadu, India
| | - P Ilaiyaraja
- Radiological Safety Division, Indira Gandhi Center for Atomic Research, Kalpakkam 600102, Tamil Nadu, India
| | - W Sofi Beaula
- Department of Human Genetics, Sri Ramachandra University, Chennai 600116, Tamil Nadu, India
| | - Vuttaradhi Veena Kumari
- Department of Biotechnology, Indian Institute of Technology, Madras, Chennai 600036, Tamil Nadu, India
| | - J Sugin Lal
- Centre for Toxicology and Developmental Research, Sri Ramachandra University, Porur, Chennai 600116, Tamil Nadu, India
| | - C Arunkumar
- Department of Biotechnology, Indian Institute of Technology, Madras, Chennai 600036, Tamil Nadu, India
| | - G Anjana
- Department of Human Genetics, Sri Ramachandra University, Chennai 600116, Tamil Nadu, India
| | - Satish Srinivas
- Department of Radiotherapy, Sri Ramachandra Medical College & Research Institute, Chennai, Tamil Nadu, India
| | - Anita Ramesh
- Medical Oncology, Department of General Medicine, Sri Ramachandra Medical College & Research Institute, Chennai, Tamil Nadu, India
| | - Suresh Kumar Rayala
- Department of Biotechnology, Indian Institute of Technology, Madras, Chennai 600036, Tamil Nadu, India.
| | - D Ponraju
- Safety Engineering Division, Indira Gandhi Center for Atomic Research, Kalpakkam 600102, Tamil Nadu, India.
| | - Ganesh Venkatraman
- Department of Human Genetics, Sri Ramachandra University, Chennai 600116, Tamil Nadu, India.
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Srinivasan T, Panigrahi B, Arora A, Venkatraman B, Ponraju D. Gamma irradiation effect on photoluminescence from functionalized LaF3:Ce nanoparticles. Radiat Phys Chem Oxf Engl 1993 2014. [DOI: 10.1016/j.radphyschem.2014.02.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Das SK, Sharma AK, Hemanth Rao E, Anandan J, Avinash C, Kondala Rao R, Murthy S, Malarvizhi B, Lydia G, Kumaresan M, Ponraju D, Nashine B, Chellapandi P. Post-accident heat removal: Numerical and experimental simulation. Nuclear Engineering and Design 2013. [DOI: 10.1016/j.nucengdes.2013.09.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ilaiyaraja P, Deb AKS, Sivasubramanian K, Ponraju D, Venkatraman B. Adsorption of uranium from aqueous solution by PAMAM dendron functionalized styrene divinylbenzene. J Hazard Mater 2013; 250-251:155-166. [PMID: 23435203 DOI: 10.1016/j.jhazmat.2013.01.040] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 12/21/2012] [Accepted: 01/17/2013] [Indexed: 05/27/2023]
Abstract
A new polymeric chelating resin was prepared by growing third generation poly(amido)amine (PAMAMG3) dendron on the surface of styrene divinylbenzene (SDB) and characterized by FTIR, TGA and SEM. The ideal branching of dendron in the chelating resin was determined from potentiometric titration. Adsorption of uranium (VI) from aqueous solution using PAMAMG3-SDB chelating resin was studied in a series of batch experiments. Effect of contact time, pH, ionic strength, adsorbent dose, initial U(VI) concentration, dendron generation and temperature on adsorption of U(VI) were investigated. Kinetic experiments showed that U(VI) adsorption on PAMAMG3-SDB followed pseudo-second-order kinetics model appropriately and equilibrium data agreed well with the Langmuir isotherm model. Thermodynamic parameters (ΔH°, ΔS°, ΔG°) were evaluated from temperature dependent adsorption data and the uranium adsorption on PAMAMG3-SDB was found to be endothermic and spontaneous in nature. The sticking probability value (5.303 × 10(-9)), kinetic and isotherm data reveal the chemisorption of uranium on PAMAMG3-SDB and adsorption capacity of the chelating resin was estimated to be 130.25 mg g(-1) at 298 K. About 99% of adsorbed U(VI) can be desorbed from PAMAMG3-SDB by a simple acid treatment suggesting that the chelating resin is reusable.
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Affiliation(s)
- P Ilaiyaraja
- Radiological Safety Division, Radiological Safety and Environmental Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, Tamilnadu, India.
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Ilaiyaraja P, Deb AKS, Sivasubramanian K, Ponraju D, Venkatraman B. Removal of thorium from aqueous solution by adsorption using PAMAM dendron-functionalized styrene divinyl benzene. J Radioanal Nucl Chem 2013. [DOI: 10.1007/s10967-012-2402-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Ranganathan R, Madanmohan S, Kesavan A, Baskar G, Krishnamoorthy YR, Santosham R, Ponraju D, Rayala SK, Venkatraman G. Nanomedicine: towards development of patient-friendly drug-delivery systems for oncological applications. Int J Nanomedicine 2012; 7:1043-60. [PMID: 22403487 PMCID: PMC3292417 DOI: 10.2147/ijn.s25182] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The focus on nanotechnology in cancer treatment and diagnosis has intensified due to the serious side effects caused by anticancer agents as a result of their cytotoxic actions on normal cells. This nonspecific action of chemotherapy has awakened a need for formulations capable of definitive targeting with enhanced tumor-killing. Nanooncology, the application of nanobiotechnology to the management of cancer, is currently the most important area of nanomedicine. Currently several nanomaterial-based drug-delivery systems are in vogue and several others are in various stages of development. Tumor-targeted drug-delivery systems are envisioned as magic bullets for cancer therapy and several groups are working globally for development of robust systems.
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Affiliation(s)
- Ramya Ranganathan
- Department of Human Genetics, Sri Ramachandra University, Porur, India
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Deb AKS, Ilaiyaraja P, Ponraju D, Venkatraman B. Diglycolamide functionalized multi-walled carbon nanotubes for removal of uranium from aqueous solution by adsorption. J Radioanal Nucl Chem 2011. [DOI: 10.1007/s10967-011-1366-6] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Ponraju D, Krishnan H, Viswanathan S, Indira R. Preliminary results on bubble detector as personal neutron dosemeter. Radiat Prot Dosimetry 2011; 144:177-181. [PMID: 21217133 DOI: 10.1093/rpd/ncq546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The bubble detector is demonstrated as one of the best suitable neutron detectors for neutron dose rate measurements in the presence of high-intense gamma fields. Immobilisation of a volatile liquid in a superheated state and achieving uniform distribution of tiny superheated droplets were a practical challenge. A compact and reusable bubble detector with high neutron sensitivity has been developed at the Indira Gandhi Centre for Atomic Research by immobilising the superheated droplets in a suitable polymer matrix. Two types of bubble detectors have been successfully developed, one by incorporating isobutane for measuring fast neutron and another by incorporating Freon-12 for both fast and thermal neutron. The performance of the detector has been tested using 5 Ci Am-Be neutron source and the results are described.
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Affiliation(s)
- D Ponraju
- Radiological Safety Division, Safety Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, India.
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Ponraju D, Subramanian C, Ramesh A, Sebastian L, Viswanathan S. Ultrasonic bubble counting technique for neutron dose measurements in bubble damage detectors. RADIAT MEAS 1999. [DOI: 10.1016/s1350-4487(99)00048-7] [Citation(s) in RCA: 5] [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: 10/16/2022]
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