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Ruhela R, Panja S, Singh AK, Dhami PS, Gandhi PM. BenzoDODA grafted polymeric resin-Plutonium selective solid sorbent. JOURNAL OF HAZARDOUS MATERIALS 2016; 318:186-193. [PMID: 27420390 DOI: 10.1016/j.jhazmat.2016.06.045] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 05/27/2016] [Accepted: 06/22/2016] [Indexed: 06/06/2023]
Abstract
A new ligand grafted polymeric resin (BenzoDODA SDVB) was synthesized by covalently attaching plutonium selective ligand (BenzoDODA) on to styrene divinyl benzene (SDVB) polymer matrix. BenzoDODA SDVB resin was evaluated for separation and recovery of plutonium(IV) from nitric acid medium. Sorption of Pu(IV) was found to decrease with the increase in nitric acid concentration, with very small sorption above 7.0M HNO3. Sorption kinetics was fast enough to achieve the equilibrium within 60min of contact where the kinetic data fitted well to pseudo-second-order model. Sorption isotherm data fitted well to Langmuir model suggesting chemical interaction between the BenzoDODA moiety and plutonium(IV) ions. Sorption studies with some of representative radionuclides of high level waste showed that BenzoDODA SDVB is selective and therefore could be a promising solid sorbent for separation and recovery of plutonium. Further, the theoretical calculations done on BenzoDODA SDVB resin suggested Pu(NO3)4·BenzoDODA (1:1) sorbed complex conformed to generally observed square antiprism geometry of the plutonium complexes, with contributions from oxygen atoms of four nitrate ions as well as from four oxygen atoms present in BenzoDODA (two phenolic ether oxygen atoms and two carbonyl oxygen atoms of amidic moiety).
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Panja S, Dey G, Bharti R, Kumari K, Maiti TK, Mandal M, Chattopadhyay S. Tailor-Made Temperature-Sensitive Micelle for Targeted and On-Demand Release of Anticancer Drugs. ACS APPLIED MATERIALS & INTERFACES 2016; 8:12063-12074. [PMID: 27128684 DOI: 10.1021/acsami.6b03820] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The design of nanomedicines from the tuned architecture polymer is a leading object of immense research in recent years. Here, smart thermoresponsive micelles were prepared from novel architecture four-arm star block copolymers, namely, pentaerythritol polycaprolactone-b-poly(N-isopropylacrylamide) and pentaerythritol polycaprolactone-b-poly(N-vinylcaprolactam). The polymers were synthesized and tagged with folic acid (FA) to render them as efficient cancer cell targeting cargos. FA-conjugated block copolymers were self-assembled to a nearly spherical (ranging from 15 to 170 nm) polymeric micelle (FA-PM) with a sufficiently lower range of critical micelle concentration (0.59 × 10(-2) to 1.52 × 10(-2) mg/mL) suitable for performing as an efficient drug carrier. The blocks show lower critical solution temperature (LCST) ranging from 30 to 39 °C with high DOX-loading content (24.3%, w/w) as compared to that reported for a linear polymer in the contemporary literature. The temperature-induced reduction in size (57%) of the FA-PM enables a high rate of DOX release (78.57% after 24 h) at a temperature above LCST. The DOX release rate has also been tuned by on-demand administration of temperature. The in vitro biocompatibilities of the blank and DOX-loaded FA-PMs have been studied by the MTT assay. The cellular uptake study proves selective internalization of the FA-PM into cancerous cells (C6 glioma) compared that into normal cells (HaCaT). In vivo administration of the DOX-loaded FA-PMs into the C6 glioma rat tumor model resulted in significant accumulation in tumor sites, which drastically inhibited the tumor volume by ∼83.9% with respect to control without any significant systemic toxicity.
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Sharma S, Panja S, Ghosh SK, Dhami PS, Gandhi PM. Efficient transport of Am(III) from nitric acid medium using a new conformationally constrained (N,N,N',N'-tetra-2-ethylhexyl)7-oxabicyclo[2.2.1]heptane-2,3-dicarboxamide across a supported liquid membrane. JOURNAL OF HAZARDOUS MATERIALS 2016; 305:171-177. [PMID: 26685064 DOI: 10.1016/j.jhazmat.2015.11.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 11/19/2015] [Accepted: 11/22/2015] [Indexed: 06/05/2023]
Abstract
Am(III) is one of the most hazardous radionuclide present in nuclear fuel cycle. A new conformationally constrained diamide, (N,N,N',N'-tetra-2-ethylhexyl)7-oxabicyclo[2.2.1]heptane-2,3-dicarboxamide (OBDA) was studied for Am(III) transport from HNO3 medium across a Supported Liquid Membrane. Transport rate was observed to be significantly fast with ∼95% transport of Am(III) within 1h using 0.1M OBDA in the presence of 15% isodecyl alcohol (IDA)/n-dodecane as carrier. The mechanism of transport was investigated by studying various parameters like feed HNO3/NaNO3 concentration, OBDA concentration in the membrane, membrane pore size, membrane thickness etc. From these studies, the mechanism of transport was found to be diffusion controlled with diffusion co-efficient value of 5.1×10(-6)cm(2)/s. The membrane was found to be highly selective for tri- and tetra-valent actinides, and trivalent lanthanides. OBDA based membrane was found to be stable for at least for ten consecutive cycles of operation.
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Singh K, Panja S, Ruhela R, Kumar M, Tripathi S, Singh A, Chakravartty J, Bajaj P. Studies on BenzoDODA encapsulated polymeric beads for separation of plutonium from acidic solution. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2015.08.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Panja S, Ruhela R, Tripathi S, Dhami P, Singh A, Gandhi P. Effect of room temperature ionic liquid on the extraction behavior of Plutonium (IV) using a novel reagent, bis-(2-ethylhexyl) carbamoyl methoxy phenoxy-bis-(2-ethylhexyl) acetamide [Benzodioxodiamide, BenzoDODA]. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2015.07.038] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Panja S, Tripathi S, Dhami P, Gandhi P. Solvent Extraction of Pu(IV) using TBP : A comparative study of n-dodecane and a Room Temperature Ionic Liquid. SEP SCI TECHNOL 2015. [DOI: 10.1080/01496395.2015.1052883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Panja S, De S, Yadav S, Sen Gupta A. Note: Measuring capacitance and inductance of a helical resonator and improving its quality factor by mutual inductance alteration. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2015; 86:056104. [PMID: 26026565 DOI: 10.1063/1.4919910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Narrow bandwidth and high voltage radio frequency (RF) is an essential requirement for stable confinement of ions within a RF trap and helical resonators are commonly used for that purpose. Effective capacitance and inductance of a helical resonator are estimated by measuring resonant frequencies for different external loads. Load capacitance of an ion trap can be estimated from this method and a resonator can be constructed for desired resonant frequency. We demonstrate a very simple method to achieve higher Q-factor of a resonator by optimizing mutual separation between the primary antenna and helical coil. We also formulate a set of analytical equations for calculating overall inductance, resistance, and Q-factor of a loaded helical resonator.
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Panja S, Maji S, Maiti T, Chattopadhyay S. A branched polymer as a pH responsive nanocarrier: Synthesis, characterization and targeted delivery. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.01.075] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Panja S, Chaudhuri D, Ghate N, Mandal N. Phytochemical profile of a microalgae Euglena tuba
and its hepatoprotective effect against iron-induced liver damage in Swiss albino mice. J Appl Microbiol 2014; 117:1773-86. [PMID: 25195957 DOI: 10.1111/jam.12643] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2014] [Revised: 06/24/2014] [Accepted: 09/02/2014] [Indexed: 11/28/2022]
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Panja S, Nayak S, Ghosh SK, Selvakumar M, Chattopadhyay S. Self-assembly of a biodegradable branched PE-PCL-b-PEC amphiphilic polymer: synthesis, characterization and targeted delivery of doxorubicin to cancer cells. RSC Adv 2014. [DOI: 10.1039/c4ra08351b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Ruhela R, Panja S, Tomar B, Singh A, Tripathi S, Gandhi P, Hubli R. Liquid–liquid extraction studies for the separation and recovery of plutonium from acidic medium with novel ligand Benzodioxodiamide (BenzoDODA). Sep Purif Technol 2014. [DOI: 10.1016/j.seppur.2013.12.040] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Goswami S, Chakraborty S, Paul S, Halder S, Panja S, Mukhopadhyay SK. A new pyrene based highly sensitive fluorescence probe for copper(ii) and fluoride with living cell application. Org Biomol Chem 2014; 12:3037-44. [DOI: 10.1039/c4ob00067f] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Lohar S, Banerjee A, Sahana A, Panja S, Hauli I, Mukhopadhyay SK, Das D. Selective fluorescence and naked eye detection of histidine in aqueous medium via hydrogen bonding assisted Schiff base condensation. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2013.10.144] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Banerjee A, Sahana A, Lohar S, Panja S, Mukhopadhyay SK, Das D. Visible light excitable fluorescence probe and its functionalized Merrifield polymer: selective sensing and removal of arsenate from real samples. RSC Adv 2014. [DOI: 10.1039/c3ra45362f] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Goswami S, Das S, Aich K, Pakhira B, Panja S, Mukherjee SK, Sarkar S. A chemodosimeter for the ratiometric detection of hydrazine based on return of ESIPT and its application in live-cell imaging. Org Lett 2013; 15:5412-5. [PMID: 24138076 DOI: 10.1021/ol4026759] [Citation(s) in RCA: 171] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A probe based on 2-(2'-hydroxyphenyl) benzothiazole (HBT) has been synthesized and used for the ratiometric detection of hydrazine. The probe is designed in such a way that the excited state intramolecular proton transfer (ESIPT) of the HBT moiety gets blocked. The chemodosimetric approach of hydrazine to the probe results in the recovery of the ESIPT by removal of a free HBT moiety through subsequent substitution, cyclization, and elimination processes. The probe is successfully demonstrated to enable the detection of hydrazine in live cells.
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Panja S, Mohapatra PK, Tripathi SC, Dhekane GD, Gandhi PM, Janardan P. Liquid – Liquid Extraction and Pertraction of Eu(III) from Nitric Acid Medium Using Several Substituted Diglycolamide Extractants. SEP SCI TECHNOL 2013. [DOI: 10.1080/01496395.2013.790447] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Sahana A, Banerjee A, Lohar S, Panja S, Mukhopadhyay SK, Matalobos JS, Das D. Fluorescence sensing of arsenate at nanomolar level in a greener way: naphthalene based probe for living cell imaging. Chem Commun (Camb) 2013; 49:7231-3. [PMID: 23841111 DOI: 10.1039/c3cc43211d] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Naphthalene-salisaldehyde conjugate (NAPSAL) is established as a novel arsenate (H2AsO4(-)) selective 'turn-on' fluorescence probe. It can detect as low as 5 × 10(-9) M H2AsO4(-) in HEPES buffered EtOH : water (0.1 M, 1 : 9, v/v, pH 7.4). Trace level H2AsO4(-) in drinking water samples is measured using standard addition method. Intracellular arsenate in Candida albicans, grown in arsenic contaminated water of Purbasthali has successfully been detected under fluorescence microscope.
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Goswami S, Aich K, Das S, Das AK, Sarkar D, Panja S, Mondal TK, Mukhopadhyay S. A red fluorescence ‘off–on’ molecular switch for selective detection of Al3+, Fe3+ and Cr3+: experimental and theoretical studies along with living cell imaging. Chem Commun (Camb) 2013; 49:10739-41. [DOI: 10.1039/c3cc46860g] [Citation(s) in RCA: 156] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Panja S, Mohapatra PK, Tripathi SC, Gandhi PM, Janardan P. Supported liquid membrane transport studies on Am(III), Pu(IV), U(VI) and Sr(II) using irradiated TODGA. JOURNAL OF HAZARDOUS MATERIALS 2012; 237-238:339-346. [PMID: 22975254 DOI: 10.1016/j.jhazmat.2012.08.055] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Revised: 08/23/2012] [Accepted: 08/24/2012] [Indexed: 06/01/2023]
Abstract
Transport behaviour of actinides viz. Am(3+), Pu(4+) and UO(2)(2+) was investigated from nitric acid feed conditions using PTFE (polytetrafluoroethylene) flat sheet supported liquid membranes (SLM) containing an irradiated solvent system comprising of N,N,N',N'-tetra-n-octyldiglycolamide (TODGA) as the carrier extractant and N,N-di-n-hexyloctanamide (DHOA) as the phase modifier. The present studies were carried out in order to understand the effect of irradiation on the long term reusability of the SLM and the decontamination behaviour in the absorbed dose range of 0-100 MRad. The studies using irradiated carrier included those with irradiated TODGA without any phase modifier and with 0.1M as well as 0.5M DHOA as the phase modifier. Transport behaviour of all the metal ions were found to be seriously affected with increasing radiation dose which was reflected in the decreasing percentage transport (%T) as well as permeability co-efficient (P) values. Though Sr(II) transport was quite significant with all the three unirradiated solvent systems, it was surprisingly low (<5%) when solvents exposed to 100 MRad dose were used in the SLM. Separation factors (S.F.) of the actinides over Sr(II) were calculated and were found to increase at higher radiation doses suggesting possibility of getting better decontamination on prolonged use of the supported liquid membrane system.
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Ruhela R, Panja S, Tomar B, Mahajan M, Sawant R, Tripathi S, Singh A, Gandhi P, Hubli R, Suri A. Bis-(2-ethylhexyl) carbamoyl methoxy phenoxy-bis-(2-ethylhexyl) acetamide [BenzoDODA]—first selective extractant for plutonium(IV) recovery (SEPUR) from acidic media. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.07.124] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ruhela R, Panja S, Sharma JN, Tomar BS, Tripathi SC, Hubli RC, Suri AK. Facilitated transport of Pd(II) through a supported liquid membrane (SLM) containing N,N,N',N'-tetra-(2-ethylhexyl) thiodiglycolamide T(2EH)TDGA: a novel carrier. JOURNAL OF HAZARDOUS MATERIALS 2012; 229-230:66-71. [PMID: 22704775 DOI: 10.1016/j.jhazmat.2012.05.064] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Revised: 05/18/2012] [Accepted: 05/18/2012] [Indexed: 06/01/2023]
Abstract
A novel carrier, N,N,N',N'-tetra-(2-ethylhexyl) thiodiglycolamide, T(2EH)TDGA has been studied for transport of Pd(II) from nitric acid medium across a supported liquid membrane (SLM). Pd(II) was found to be almost quantitatively transported (≈ 99.9%) within 2h from 3.0M HNO(3) medium using 0.05 M T(2EH)TDGA in n-dodecane as carrier and 0.01 M thiourea in 0.2M HNO(3) as strippant. Pd(II) transport was also studied against various parameters like feed acidity, carrier concentration, membrane pore size, etc. Palladium transport was found to be diffusion controlled and the diffusion co-efficient value was found to be 3.56 × 10(-5)cm(2)/s. Selectivity of T(2EH)TDGA for palladium over other fission products was found to be quite high, with the separation factors for Pd, with respect to different fission products being >10(3). With respect to leaching out of carrier from the membrane support, the membrane was found to be stable for six consecutive cycles. Thus, T(2EH)TDGA can be used as an efficient carrier of Pd(II) from nitric acid medium.
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Panja S, Mohapatra P, Tripathi S, Gandhi P, Janardan P. A highly efficient solvent system containing TODGA in room temperature ionic liquids for actinide extraction. Sep Purif Technol 2012. [DOI: 10.1016/j.seppur.2012.06.015] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Panja S, Mohapatra P, Tripathi S, Gandhi P, Janardan P. Role of organic diluents on Am(III) extraction and transport behaviour using N,N,N′,N′-tetraoctyl-3-oxapentanediamide as the extractant. J Memb Sci 2012. [DOI: 10.1016/j.memsci.2012.02.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Panja S, Mohapatra P, Tripathi S, Dhekane G, Gandhi P, Janardan P. Liquid–liquid extraction and pertraction behavior of Am(III) and Sr(II) with diglycolamide carrier extractants. J Memb Sci 2012. [DOI: 10.1016/j.memsci.2012.01.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Panja S, Mohapatra PK, Misra SK, Tripathi SC. Carrier Facilitated Transport of Europium(III) Across Supported Liquid Membranes ContainingN,N,N′,N′-tetra-2-ethylhexyl-3-oxapentane-diamide (T2EHDGA) as the Extractant. SEP SCI TECHNOL 2011. [DOI: 10.1080/01496395.2011.580308] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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