1
|
Mathi P, Parthasarathy V, Nayak AK, Mittal JP, Sarkar SK. Laser Isotope Separation: Science and Technology. Proc Natl Acad Sci , India, Sect A Phys Sci 2015. [DOI: 10.1007/s40010-015-0249-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
2
|
Hanf A, Volpp HR, Sharma P, Mittal JP, Vatsa RK. Ultraviolet photochemistry of buta-1,3- and buta-1,2-dienes: Laser spectroscopic absolute hydrogen atom quantum yield and translational energy distribution measurements. J Chem Phys 2010; 133:024308. [DOI: 10.1063/1.3462951] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
3
|
Manoj P, Mohan H, Manoj VM, Mittal JP, Aravindakumar CT. Reactions of hydroxyl radical (·OH) and oxide radical anion (O·−) with 2-aminopurine in aqueous medium. Res Chem Intermed 2006. [DOI: 10.1163/156856706778938446] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
4
|
Naqvi SMK, Joshi A, Gulyani R, Kumar D, Kolte AP, Kumar S, Maurya VP, Saha S, Mittal JP, Singh VK. Production of prolific microsheep by embryo transfer into large non-prolific sheep. Vet Rec 2006; 159:522-6. [PMID: 17041066 DOI: 10.1136/vr.159.16.522] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
The Garole is a prolific breed of microsheep that possesses the FecB gene, which increases ovulation rate. The purpose of this study was to compare embryo production by multiple ovulation in seven Garole ewes with that in seven normal size, non-prolific Malpura ewes, and assess the influence of the large body size of Awassi crossbred recipient ewes on the birth-weight of Garole lambs. Oestrus was synchronised with two intramuscular injections of 7.5 mg prostaglandin F(2alpha) administered 10 days apart. The donor ewes were superovulated by the use of pregnant mare serum gonadotrophin and follicle-stimulating hormone. The onset and duration of oestrus were similar in both breeds. The Garole donors had higher total mean (se) ovarian responses (15.6 [3.6] v 9.1 [2.3]), ovulation rate (13.6 [3.1] v 8.4 [2.2]) and produced more transferable embryos (6.0 [3.5] v 4.0 [0.9]) than the Malpura donors, but the differences were not statistically significant. The Garole lambs produced by embryo transfer were on average 57.8 per cent heavier at birth than contemporary Garole lambs produced by natural mating.
Collapse
Affiliation(s)
- S M K Naqvi
- Division of Animal Physiology and Biochemistry, Avikanagar, via Jaipur, Rajasthan 304501, India
| | | | | | | | | | | | | | | | | | | |
Collapse
|
5
|
Joshi A, Mathur AK, Naqvi SMK, Mittal JP. Influence of Osmolality of Complete Semen Extender on Motion Characteristics of Frozen-thawed Ram Spermatozoa. Asian Australas J Anim Sci 2006. [DOI: 10.5713/ajas.2006.1716] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
6
|
Naqvi SMK, Gulyani R, Joshi A, Maurya VP, Kumar D, Mittal JP, Singh VK. Production of 24 transferable embryos in one flush by a Garole microsheep. Vet Rec 2006; 158:414-5. [PMID: 16565342 DOI: 10.1136/vr.158.12.414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- S M K Naqvi
- Division of Animal Physiology and Biochemistry, Avikanagar, via Jaipur, Rajasthan 304501, India
| | | | | | | | | | | | | |
Collapse
|
7
|
Pramod G, Mohan H, Manoj P, Manojkumar TK, Manoj VM, Mittal JP, Aravindakumar CT. Redox chemistry of 8-azaadenine: a pulse radiolysis study. J PHYS ORG CHEM 2006. [DOI: 10.1002/poc.1100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
8
|
Maurya VP, Naqvi SMK, Gulyani R, Joshi A, Mittal JP. Effect of Thermal Stress on Sexual Behaviour of Superovulated Bharat Merino Ewes. Asian Australas J Anim Sci 2005. [DOI: 10.5713/ajas.2005.1403] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
9
|
Tripathi SC, Kadam RM, Kumar M, Mittal JP, Mishra SP. EPR investigations on radiation induced chemical transformations in Pd(ClO4)2/i-PrOH/HClO4 system from 77 to 300 K. Spectrochim Acta A Mol Biomol Spectrosc 2005; 62:1107-13. [PMID: 15955724 DOI: 10.1016/j.saa.2005.03.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2004] [Accepted: 03/18/2005] [Indexed: 05/03/2023]
Abstract
The EPR studies have been carried out on gamma irradiated samples of Pd(ClO4)2 in 9 M/4M HClO4 in the presence and absence of isopropanol [i-PrOH (5%, v/v)], in the temperature range of 77-300 K. The EPR studies revealed the formation of Pd+ complex, Pd3+ complex and several radicals such as H., OH., ClO3., ClO4. and O3- on radiolysis of these systems. Reduction of Pd2+ to Pd clusters could not be observed in the absence of i-PrOH and warming of the irradiated sample finally resulted in recovery of Pd2+ complex. However, in the presence of 5% i-PrOH, strongly oxidizing radicals like OH., ClO3. and ClO4. are suppressed and (CH3)2C.OH radical was produced along with reducing species like H.. EPR spectra in these strongly reducing conditions showed formation of Pd+ complex, which on heating above 230 K, disproportionated into Pd0 and Pd2+ complex and finally lead to formation of Pd metal aggregates. Simultaneously, pulse radiolysis technique has been employed as an alternative method to verify the EPR observations.
Collapse
Affiliation(s)
- S C Tripathi
- RCS, Fuel Reprocessing Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
| | | | | | | | | |
Collapse
|
10
|
Naqvi SMK, Pandey GK, Gautam KK, Joshi A, Geethalakshmi V, Mittal JP. Evaluation of gross anatomical features of cervix of tropical sheep using cervical silicone moulds. Anim Reprod Sci 2005; 85:337-44. [PMID: 15581516 DOI: 10.1016/j.anireprosci.2003.10.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2002] [Revised: 09/19/2003] [Accepted: 10/03/2003] [Indexed: 11/20/2022]
Abstract
The lambing rate obtained following cervical artificial insemination (AI) with frozen semen in sheep is low mainly due to the inability of frozen-thawed sperm to traverse the tortuous nature of the cervical canal. Although acceptable fertility has been attained by circumventing the cervical barrier through laparoscope aided intrauterine AI, the emphasis is currently given on the development of alternate non-invasive transcervical AI procedures. The complex anatomy of the cervix does not facilitate easy transcervical passage for an insemination catheter. The aim of the present study was: (i) to examine the gross anatomy of the cervix in slaughtered ewe lambs and adult ewes of the native Malpura and Kheri breeds raised under semi-arid tropical environment; and (ii) to cast silicone moulds of the reproductive tracts for measuring the dimensions of the cervix. Eighty reproductive tracts were excised immediately from carcass of Malpura and Kheri ewes and the external os of each one was classified depending on their appearance as duckbill, spiral, rosette or flap. The cervical canal of each tract was filled with a silicone sealant for casting the mould. Fifty complete silicone moulds were obtained representing 25 from ewe lambs and 25 from adult ewes. The mean lengths of the cervical mould of ewe lambs and adult ewes were 3.8+/-0.12 and 5.3+/-0.15 cm, respectively. The average number of funnel shaped folds in the cervical mould of ewe lambs and adult ewes were 3.2+/-0.19 and 3.4+/-0.22. However, the second and third-folds from the os were observed to be accentric in both ewe lambs and adult ewes. The information generated in this study would be useful for increasing the success rate of penetration in ewes exhibiting estrus in order to improve the lambing rate of tropical ewes following transcervical AI.
Collapse
Affiliation(s)
- S M K Naqvi
- Division of Physiology, Central Sheep & Wool Research Institute, Avikanagar (via Jaipur), Rajasthan 304501, India.
| | | | | | | | | | | |
Collapse
|
11
|
Dahiya P, Kumbhakar M, Maity DK, Mukherjee T, Mittal JP, Tripathi ABR, Chattopadhyay N, Pal H. Photophysical properties of 2-amino-9,10-anthraquinone: evidence for structural changes in the molecule with solvent polarity. Photochem Photobiol Sci 2005; 4:100-5. [PMID: 15616699 DOI: 10.1039/b411547c] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photophysical properties of 2-amino-9,10-anthraquinone (2AAQ) have been investigated in different solvents and solvent mixtures and correlated with the Lippert-Mataga solvent polarity parameter, Deltaf. In the low solvent polarity region with Deltaf < ca. 0.1, the dye shows unusually high fluorescence quantum yields (Phif) and lifetimes (tauf) in comparison to those in other solvents of medium to high polarities. Similarly, the radiative rate constants (kf) are relatively lower and the non-radiative rate constants (knr) are relatively higher in the low polarity solvents in comparison to those in the medium to high polarity solvents. The current results have been rationalized assuming that the dye adopts different structural forms below and above the Deltaf value of approximately 0.1. It is inferred that in the low solvent polarity region the dye exists in a non-planar structure, with its 2-NH2 plane away from that of the 9,10-anthraquinone moiety in the ground state. In solvents of medium to high polarities, the dye exists in a polar intramolecular charge transfer (ICT) structure, where the amino lone pair of the 2-NH2 group is in strong resonance with the anthraquinone pi-cloud in the ground state. In all the solvents, however the dye is inferred to exist in the ICT structure in its excited (S1) state. Supportive evidence for the above hypothesis has been obtained from the solvent polarity effect on the Stokes' shifts for the dye. Quantum chemical studies on the structures of 2AAQ dye in the gas phase also give qualitative support for the inferences drawn from the photophysical properties of the dye in different solvents.
Collapse
Affiliation(s)
- P Dahiya
- NAA unit at Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India
| | | | | | | | | | | | | | | |
Collapse
|
12
|
Bag S, Joshi A, Naqvi SMK, Mittal JP. Effect of post-thaw incubation on sperm kinematics and acrosomal integrity of ram spermatozoa cryopreserved in medium-sized French straws. Theriogenology 2004; 62:415-24. [PMID: 15225998 DOI: 10.1016/j.theriogenology.2003.10.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2003] [Accepted: 10/15/2003] [Indexed: 10/26/2022]
Abstract
The objectives were to assess the effect of post-thaw in vitro incubation on motion characteristics and acrosomal integrity of ram spermatozoa of native Malpura and Bharat Merino breeds maintained under a semi-arid tropical environment. Good quality semen samples of both breeds were diluted, packaged in medium-sized straws, and frozen under controlled conditions. Straws were thawed at 60 degrees C for 10s and thawed samples were incubated at 37 degrees C for 4h. Post-thaw motion characteristics and acrosomal integrity of incubated spermatozoa were assessed (by computer-aided semen analysis and Giemsa staining, respectively) just prior to incubation and at hourly intervals thereafter. There was a significant effect of incubation time on motility characteristics and the proportion of spermatozoa with normal acrosomes; 81.4% (arcsin transformed value, 65.2) of spermatozoa were motile at the start of incubation, with 47.9% (arcsin transformed value, 44.4) motile after 4h. At the corresponding times, there were normal acrosomes in 65.8 (arcsin transformed value, 54.8) and 55.7% (arcsin transformed value, 48.9) of spermatozoa, respectively. The percentage straightness of spermatozoa varied during incubation (P < 0.01). However, there was no significant change in percentage linearity, curvilinear velocity, average path velocity, straight line velocity, lateral head displacement, and beat cross frequency of spermatozoa during incubation. There were no breed variations in any motility parameters during incubation, except percentage straightness (P < 0.05), lateral head displacement (P < 0.05) and beat cross frequency (P < 0.01). That sperm motility and acrosomal morphology were very acceptable immediately post-thaw and after 4h of incubation indicated the efficacy of cryopreserving ram spermatozoa under controlled conditions in medium-sized straws.
Collapse
Affiliation(s)
- Sadhan Bag
- Semenology Laboratory, Division of Physiology, Central Sheep and Wool Research Institute, Avikanagar, Jaipur, Rajasthan 304501, India
| | | | | | | |
Collapse
|
13
|
Geeta S, Rao BSM, Mohan H, Mittal JP. Radiation-induced oxidation of substituted benzaldehydes: a pulse radiolysis study. J PHYS ORG CHEM 2004. [DOI: 10.1002/poc.713] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
14
|
Affiliation(s)
- B. Mishra
- Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - D. K. Maity
- Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - K. I. Priyadarsini
- Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - H. Mohan
- Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - J. P. Mittal
- Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| |
Collapse
|
15
|
Luke TL, Mohan H, Manoj VM, Manoj P, Mittal JP, Aravindakumar CT. Reaction of sulphate radical anion (SO. 4 -) with hydroxy-and methyl-substituted pyrimidines: a pulse radiolysis study. Res Chem Intermed 2003. [DOI: 10.1163/156856703765694327] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
16
|
Joshi A, Naqvi SMK, Bag S, Dang AK, Sharma RC, Rawat PS, Mittal JP. Sperm motion characteristics of Garole rams raised for a prolonged period in a semi-arid tropical environment. Trop Anim Health Prod 2003; 35:249-57. [PMID: 12797414 DOI: 10.1023/a:1023347514476] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The Garole is a prolific but less well known and rare breed of small sheep found in the hot and humid Sunderban region of West Bengal. An ability to breed throughout the year and to graze in knee-deep water, resistance to foot rot and a strong mothering instinct are some of the special features of this breed. Garole rams could provide germplasm to incorporate prolificacy traits by artificial insemination of the nonprolific sheep breeds found in abundance in the semi-arid and arid tropical climates of India. The aim of the present study was to evaluate the semen production by Garole rams maintained in a semi-arid climate for three years and to objectively assess their semen quality by a computer-assisted sperm analysis technique. The donor rams were randomly selected each year from the original flock procured from their natural habitat or from the offspring born at the Institute farm. Semen was collected weekly for three weeks each autumn for three consecutive years from 8 rams each year. The overall means (SD) of the traits that did not differ significantly with age or year were volume, concentration, curvilinear velocity, average path velocity, amplitude of lateral head displacement, beat frequency, motility and the percentages of rapid motile sperms and of slow motile sperms. The age of the rams had a significant effect (p<0.05) on the straight-line velocity but this was not significantly affected by the length of exposure to the semi-arid climate. However, the age and year had significant effects (p<0.05) on linearity, straightness and the percentage of medium motile sperms. It was concluded that Garole rams are capable of producing good-quality semen even after a prolonged period of exposure to a semi-arid tropical climate.
Collapse
Affiliation(s)
- A Joshi
- Semenology Laboratory, Division of Physiology, Central Sheep and Wool Research Institute, Avikanagar via Jaipur, Rajasthan, India 304 501.
| | | | | | | | | | | | | |
Collapse
|
17
|
Grover R, Mudaliar M, Rao BSM, Mohan H, Mittal JP. Kinetics and spectral properties of electron and •OH adducts of dimethylpyridines: a pulse radiolysis study. Res Chem Intermed 2003. [DOI: 10.1163/156856703321505058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
18
|
Gawandi V, Mohan H, Mittal JP. Investigations on the nature of the transient species formed on pulse radiolysis of a aqueous solution of 4-(methylthio)benzoic acid. Res Chem Intermed 2003. [DOI: 10.1163/156856703321328406] [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] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
19
|
|
20
|
Bag S, Joshi A, Naqvi SMK, Rawat PS, Mittal JP. Effect of freezing temperature, at which straws were plunged into liquid nitrogen, on the post-thaw motility and acrosomal status of ram spermatozoa. Anim Reprod Sci 2002; 72:175-83. [PMID: 12137980 DOI: 10.1016/s0378-4320(02)00118-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The present study was conducted to observe the effect of initial freezing temperature on subsequent survival and acrosomal integrity of Malpura and Bharat Merino ram spermatozoa during post-thawing incubation. Semen samples were diluted in TEST-yolk-glycerol extender, loaded in 0.25 ml straws and cooled down to -25, -75 or -125 degrees C freezing temperature using a programmable cell freezer. Computer assisted sperm analysis and acrosomal integrity of thawed samples were assessed after thawing and at hourly intervals during incubation at 37 degrees C for 4 h. The percentage of motile cells in samples frozen at -125 degrees C were 80.3 and 63.7 after post-thawing and -thawing incubation, compared to 75.9 and 39.7 at -25 degrees C or 73.9 and 51.8 at -75 degrees C temperatures, respectively. The spermatozoa with normal acrosome were also significantly, respectively, higher in samples frozen at -125 degrees C, compared to -25 and -75 degrees C temperatures. There were no significant breed variations on percentage of motile, percentage of rapidly motile cells, percentage of normal acrosomes, curvilinear velocity and lateral head displacement except straight line velocity and average path velocity of spermatozoa. The results indicated that -125 degrees C initial freezing temperature conferred the best cryopreserving ability to ram spermatozoa for post-thawing thermoresistance test compared to -25 or -75 degrees C freezing temperature.
Collapse
Affiliation(s)
- Sadhan Bag
- Semenology Laboratory, Division of Physiology, Central Sheep and Wool Research Institute, Avikanagar, Via Jaipur, Rajasthan 304501, India
| | | | | | | | | |
Collapse
|
21
|
Neta P, Huie RE, Mosseri S, Shastri LV, Mittal JP, Maruthamuthu P, Steenken S. Rate constants for reduction of substituted methylperoxyl radicals by ascorbate ions and N,N,N',N'-tetramethyl-p-phenylenediamine. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100347a045] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
22
|
Luke TL, Mohan H, Manoj V, Manoj P, Mittal JP, Aravindakumar CT. Reaction of oxide radical ion (O.–) with substituted pyrimidines. Res Chem Intermed 2002. [DOI: 10.1163/15685670260188610] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
23
|
Maity DK, Mohan H, Chattopadhyay S, Mittal JP. Formation, Stability, and Reactivity of Radical Cations of 1-Bromo-n-chloroalkanes in Aqueous Solution: A Pulse Radiolysis Study. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100032a022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
24
|
Mittal LJ, Mittal JP, Hayon E. Photo-induced decarboxylation of aliphatic acids and esters in solution. Dependence upon state of protonation of the carboxyl group. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100631a003] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
25
|
|
26
|
Priyadarsini KI, Mohan H, Mittal JP, Guldi DM, Asmus KD. Pulse radiolysis studies on the redox reactions of aqueous solutions of .gamma.-cyclodextrine/C60 complexes. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100089a033] [Citation(s) in RCA: 21] [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] [Indexed: 11/29/2022]
|
27
|
Priyadarsini KI, Mohan H, Tyagi AK, Mittal JP. Inclusion Complex of .gamma.-Cyclodextrin-C60: Formation, Characterization, and Photophysical Properties in Aqueous Solutions. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100068a044] [Citation(s) in RCA: 104] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
28
|
Merga G, Rao BSM, Mohan H, Mittal JP. Reactions of OH and SO4.bul.- with Some Halobenzenes and Halotoluenes: A Radiation Chemical Study. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100088a012] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
29
|
Mittal LJ, Mittal JP, Hayon E. Primary processes in the photochemistry of phenylalanine and derivatives in aqueous solution. Biphotonic photoionization and photodissociation reactions. J Am Chem Soc 2002. [DOI: 10.1021/ja00800a009] [Citation(s) in RCA: 18] [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: 11/29/2022]
|
30
|
Luke TL, Mohan H, Jacob TA, Manoj VM, Manoj P, Mittal JP, Destaillats H, Hoffmann MR, Aravindakumar CT. Kinetic and spectral investigation of the electron and hydrogen adducts of dihydroxy- and dimethyl-substituted pyrimidines: a pulse radiolysis and product analysis study. J PHYS ORG CHEM 2002. [DOI: 10.1002/poc.478] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
31
|
|
32
|
Chowdhury PK, Rao KVSR, Mittal JP. Infrared laser induced multiphoton dissociation of decafluorocyclopentane in a concerted pathway: time-resolved evidence of difluorocarbene formation. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100312a023] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
33
|
Sharma KK, Rao BSM, Mohan H, Mittal JP, Oakes J, O'Neill P. Free-Radical-Induced Oxidation and Reduction of 1-Arylazo-2-naphthol Dyes: A Radiation Chemical Study. J Phys Chem A 2002. [DOI: 10.1021/jp014025b] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- K. K. Sharma
- National Centre for Free Radical Research, Deparment of Chemistry, University of Pune, Pune − 411 007, India, Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai − 400 085, India, Unilever Research, Port Sunlight, Quarry Road East, Bebington, Wirral, Merseyside CH63 3JW, U.K., and Radiation and Genome Stability Unit, MRC, Harwell, Didcot, Oxon, Oxfordshire OX11 ORD, U.K
| | - B. S. M. Rao
- National Centre for Free Radical Research, Deparment of Chemistry, University of Pune, Pune − 411 007, India, Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai − 400 085, India, Unilever Research, Port Sunlight, Quarry Road East, Bebington, Wirral, Merseyside CH63 3JW, U.K., and Radiation and Genome Stability Unit, MRC, Harwell, Didcot, Oxon, Oxfordshire OX11 ORD, U.K
| | - H. Mohan
- National Centre for Free Radical Research, Deparment of Chemistry, University of Pune, Pune − 411 007, India, Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai − 400 085, India, Unilever Research, Port Sunlight, Quarry Road East, Bebington, Wirral, Merseyside CH63 3JW, U.K., and Radiation and Genome Stability Unit, MRC, Harwell, Didcot, Oxon, Oxfordshire OX11 ORD, U.K
| | - J. P. Mittal
- National Centre for Free Radical Research, Deparment of Chemistry, University of Pune, Pune − 411 007, India, Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai − 400 085, India, Unilever Research, Port Sunlight, Quarry Road East, Bebington, Wirral, Merseyside CH63 3JW, U.K., and Radiation and Genome Stability Unit, MRC, Harwell, Didcot, Oxon, Oxfordshire OX11 ORD, U.K
| | - J. Oakes
- National Centre for Free Radical Research, Deparment of Chemistry, University of Pune, Pune − 411 007, India, Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai − 400 085, India, Unilever Research, Port Sunlight, Quarry Road East, Bebington, Wirral, Merseyside CH63 3JW, U.K., and Radiation and Genome Stability Unit, MRC, Harwell, Didcot, Oxon, Oxfordshire OX11 ORD, U.K
| | - P. O'Neill
- National Centre for Free Radical Research, Deparment of Chemistry, University of Pune, Pune − 411 007, India, Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai − 400 085, India, Unilever Research, Port Sunlight, Quarry Road East, Bebington, Wirral, Merseyside CH63 3JW, U.K., and Radiation and Genome Stability Unit, MRC, Harwell, Didcot, Oxon, Oxfordshire OX11 ORD, U.K
| |
Collapse
|
34
|
Luke TL, Jacob TA, Mohan H, Destaillats H, Manoj VM, Manoj P, Mittal JP, Hoffmann MR, Aravindakumar CT. Properties of the OH Adducts of Hydroxy-, Methyl-, Methoxy-, and Amino-Substituted Pyrimidines: Their Dehydration Reactions and End-Product Analysis. J Phys Chem A 2002. [DOI: 10.1021/jp0117720] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- T. L. Luke
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686 560, India, Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India, and W.M. Keck Laboratories, California Institute of Technology, Pasadena, California 91125
| | - T. A. Jacob
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686 560, India, Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India, and W.M. Keck Laboratories, California Institute of Technology, Pasadena, California 91125
| | - H. Mohan
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686 560, India, Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India, and W.M. Keck Laboratories, California Institute of Technology, Pasadena, California 91125
| | - H. Destaillats
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686 560, India, Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India, and W.M. Keck Laboratories, California Institute of Technology, Pasadena, California 91125
| | - V. M. Manoj
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686 560, India, Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India, and W.M. Keck Laboratories, California Institute of Technology, Pasadena, California 91125
| | - P. Manoj
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686 560, India, Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India, and W.M. Keck Laboratories, California Institute of Technology, Pasadena, California 91125
| | - J. P. Mittal
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686 560, India, Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India, and W.M. Keck Laboratories, California Institute of Technology, Pasadena, California 91125
| | - M. R. Hoffmann
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686 560, India, Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India, and W.M. Keck Laboratories, California Institute of Technology, Pasadena, California 91125
| | - C. T. Aravindakumar
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686 560, India, Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India, and W.M. Keck Laboratories, California Institute of Technology, Pasadena, California 91125
| |
Collapse
|
35
|
Naqvi SMK, Maurya VP, Joshi A, Sharma RC, Mittal JP. Production of Crossbred Lambs through Artificial Insemination of Non-prolific Medium Size Malpura and Avikalin Ewes Using Fresh Diluted Semen of Prolific Micro Size Garole Rams. Asian Australas J Anim Sci 2002. [DOI: 10.5713/ajas.2002.633] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
36
|
Mohanty J, Pal H, Saini RD, Sapre AV, Mittal JP. Triplet-State Characteristics and Photoionization Behavior of 2,2‘- and 4,4‘-Biphenyldiol Studied by 248 nm Laser Flash Photolysis in Aqueous Solutions. J Phys Chem A 2001. [DOI: 10.1021/jp012445v] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J. Mohanty
- Radiation Chemistry & Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - H. Pal
- Radiation Chemistry & Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - R. D. Saini
- Radiation Chemistry & Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - A. V. Sapre
- Radiation Chemistry & Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - J. P. Mittal
- Radiation Chemistry & Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| |
Collapse
|
37
|
Joshi A, Bag S, Naqvi SMK, Sharma RC, Rawat PS, Mittal JP. Effect of Short-term and Long-term Preservation on Motion Characteristics of Garole Ram Spermatozoa: A Prolific Microsheep Breed of India. Asian Australas J Anim Sci 2001. [DOI: 10.5713/ajas.2001.1527] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
38
|
Mohan H, Palit DK, Chiang LY, Mittal JP. RADIATION CHEMICAL AND PHOTOPHYSICAL PROPERTIES OF C60(C4H8SO3Na)nIN AQUEOUS SOLUTION: A LASER FLASH PHOTOLYSIS AND PULSE RADIOLYSIS STUDY. ACTA ACUST UNITED AC 2001. [DOI: 10.1081/fst-100000163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
39
|
Gawandi VB, Guha SN, Mohan H, Mittal JP. Kinetic and redox characteristics of semireduced species derived from phenosafranine in homogeneous aqueous and sodium dodecyl sulfate micellar media. INT J CHEM KINET 2001. [DOI: 10.1002/kin.10024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
40
|
Joseph JM, Jacob TA, Manoj VM, Aravindakumar CT, Mohan H, Mittal JP. Oxidative degradation of triazine derivatives in aqueous medium: a radiation and photochemical study. J Agric Food Chem 2000; 48:3704-3709. [PMID: 10956174 DOI: 10.1021/jf991025o] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Pulse and steady state radiolysis techniques have been used to determine the bimolecular rate constants and to investigate the spectral nature of the intermediates and the degradation induced by hydroxyl radicals ((*)OH) with 1,3,5-triazine (T), 2,4, 6-trimethoxy-1,3,5-triazine (TMT), and 2,4-dioxohexahydro-1,3, 5-triazine (DHT) in aqueous medium. A competitive kinetic method with KSCN as the (*)OH scavenger was used to determine the rate constants for the reaction of (*)OH with T, TMT, and DHT. The bimolecular rate constants are 3.4 x 10(9), 2.06 x 10(8), and 1.61 x 10(9) dm(3) mol(-)(1) s(-)(1) respectively, for T, TMT, and DHT at pH approximately 6. The transient absorption spectra obtained from the reaction of (*)OH with T, TMT, and DHT have single absorption maxima at 320, 300, and 300 nm, respectively, and were found to undergo a second-order decay. The formation of TOH(*) [C(6)OH-N(5)-yl radical], TMTOH(*) [N(5)OH-C(6)-yl radical], and DHT(*) [C(6)-yl radical] is proposed from the initial attack of (*)OH with T, TMT, and DHT, respectively. A complete degradation of TMT (10(-3) mol dm(-3)) was obtained after absorbed doses of 5 kGy in N(2)O-saturated solutions and 16 kGy in aerated solutions. A similar degradation pattern was obtained with DHT in N(2)O-saturated solutions. Complete degradation was observed with an absorbed dose of 7 kGy. On the basis of the results from both pulse and steady state radiolysis, a possible reaction mechanism involving (*)OH-mediated oxidative degradation is proposed. A complete photodecomposition of DHT was also observed in the presence of ferric perchlorate using ultraviolet light at low pH. Photoinduced electron transfer between Fe(III) and DHT in the Fe(III)-DHT complex and subsequent formation of DHT(*) are proposed to be the major processes that lead to the complete degradation of DHT at pH 3.
Collapse
Affiliation(s)
- J M Joseph
- Chemistry Division, Bhabha Atomic Research Centre, Mumba, India
| | | | | | | | | | | |
Collapse
|
41
|
Mohan H, Adhikary A, Jain V, Mittal JP. Quenching of nucleotide-derived radicals bybisbenzimidazole derivative Hoechst-33258 in aqueous solution. J CHEM SCI 2000. [DOI: 10.1007/bf02704354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
42
|
Raj HG, Parmar VS, Jain SC, Priyadarsini KI, Mittal JP, Goel S, Das SK, Sharma SK, Olsen CE, Wengel J. Mechanism of biochemical action of substituted 4-methylbenzopyran-2-ones. Part 5: Pulse radiolysis studies on the antioxidant action of 7,8-diacetoxy-4-methylcoumarin. Bioorg Med Chem 1999; 7:2091-4. [PMID: 10530959 DOI: 10.1016/s0968-0896(99)00174-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
7,8-Dihydroxy-4-methylcoumarin (1, DHMC) and 7,8-diacetoxy-4-methylcoumarin (2, DAMC) were shown to possess radical scavenging property and strongly inhibit membrane lipid peroxidation. Although free polyphenolic compounds are known to be antioxidants, the antioxidant action of the acetoxy compound DAMC was intriguing. Hence, pulse radiolysis studies were undertaken to explain the antioxidant action of DAMC. Accordingly, DAMC and DHMC were separately reacted with the system generating azide radicals and the resulting transient spectra were recorded. The spectra so obtained in both the cases demonstrated peak at 410 nm, characteristic of phenoxyl radical. The rate constants for the formation of phenoxyl radical from DHMC and DAMC were 34 x 10(8) M(-1) s(-1) and 6.2 x 10(8) M(-1) s(-1), respectively. We propose that the free radical mediated oxidation of DAMC initially produces a radical cation that loses an acetyl carbocation to yield the phenoxyl radical. It is possible to conclude that the mechanism of the antioxidant action of DAMC follows the pathway similar to that of DHMC involving the formation of a stable phenoxyl radical.
Collapse
Affiliation(s)
- H G Raj
- Department of Biochemistry, VP Chest Institute, University of Delhi, India
| | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Bhasikuttan AC, Singh AK, Palit DK, Sapre AV, Mittal JP. Study of Spectral Characteristics, Kinetics, and Equilibria of Radicals Derived from Hydroxy Benzophenones. J Phys Chem A 1999. [DOI: 10.1021/jp990062f] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A. C. Bhasikuttan
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - A. K. Singh
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - D. K. Palit
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - A. V. Sapre
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - J. P. Mittal
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| |
Collapse
|
44
|
|
45
|
Gawandi VB, Mohan H, Mittal JP. Structure–reactivity studies on ˙OH radical reaction with substituted dialkyl sulfides. ACTA ACUST UNITED AC 1999. [DOI: 10.1039/a900830f] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
46
|
Kamat JP, Devasagayam TP, Priyadarsini KI, Mohan H, Mittal JP. Oxidative damage induced by the fullerene C60 on photosensitization in rat liver microsomes. Chem Biol Interact 1998; 114:145-59. [PMID: 9839628 DOI: 10.1016/s0009-2797(98)00047-7] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have examined the ability of a commonly used fullerene, C60, to induce oxidative damage on photosensitization using rat liver microsomes as model membranes. When C60 was incorporated into rat liver microsomes in the form of its cyclodextrin complex and exposed to UV or visible light, it induced significant oxidative damage in terms of (1) lipid peroxidation as assayed by thiobarbituric acid reactive substances (TBARS), lipid hydroperoxides and conjugated dienes, and (2) damage to proteins as assessed by protein carbonyls and loss of the membrane-bound enzymes. The oxidative damage induced was both time- and concentration-dependent. C60 plus light-induced lipid peroxidation was significantly inhibited by the quenchers of singlet oxygen ((1)O2), beta-carotene and sodium azide, and deuteration of the buffer-enhanced peroxidation. These observations indicate that C60 is an efficient inducer of peroxidation and is predominantly due to (1)O2. Biological antioxidants such as glutathione, ascorbic acid and alpha-tocopherol significantly differ in their ability to inhibit peroxidation induced by C60. Our studies, hence, indicate that C60, on photosensitization, can induce significant lipid peroxidation and other forms of oxidative damage in biological membranes and that this phenomenon can be greatly modulated by endogenous antioxidants and scavengers of reactive oxygen species.
Collapse
Affiliation(s)
- J P Kamat
- Cell Biology Division, Bhabha Atomic Research Centre, Mumbai, India
| | | | | | | | | |
Collapse
|
47
|
Kamat JP, Devasagayam TPA, Mohan H, Chiang LY, Mittal JP. Effect of C60(Oh)18on Membranes of Rat Liver Microsomes During Photosensitization. ACTA ACUST UNITED AC 1998. [DOI: 10.1080/10641229809350227] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
48
|
Mohan H, Hermann R, Naumov S, Mittal JP, Brede O. Two Channels of Electron Transfer Observed for the Reaction of n-Butyl Chloride Parent Radical Cations with Naphthols and Hydroxybiphenyls. J Phys Chem A 1998. [DOI: 10.1021/jp9808431] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- H. Mohan
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India, University of Leipzig, Interdisciplinary Group Time-Resolved Spectroscopy, Permoserstrasse 15, D-04303 Leipzig, Germany, and Institute of Surface Modification, Permoserstrasse 15, D-04303 Leipzig, Germany
| | - R. Hermann
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India, University of Leipzig, Interdisciplinary Group Time-Resolved Spectroscopy, Permoserstrasse 15, D-04303 Leipzig, Germany, and Institute of Surface Modification, Permoserstrasse 15, D-04303 Leipzig, Germany
| | - S. Naumov
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India, University of Leipzig, Interdisciplinary Group Time-Resolved Spectroscopy, Permoserstrasse 15, D-04303 Leipzig, Germany, and Institute of Surface Modification, Permoserstrasse 15, D-04303 Leipzig, Germany
| | - J. P. Mittal
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India, University of Leipzig, Interdisciplinary Group Time-Resolved Spectroscopy, Permoserstrasse 15, D-04303 Leipzig, Germany, and Institute of Surface Modification, Permoserstrasse 15, D-04303 Leipzig, Germany
| | - O. Brede
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India, University of Leipzig, Interdisciplinary Group Time-Resolved Spectroscopy, Permoserstrasse 15, D-04303 Leipzig, Germany, and Institute of Surface Modification, Permoserstrasse 15, D-04303 Leipzig, Germany
| |
Collapse
|
49
|
Mohan H, Mittal JP, Srividya N, Ramamurthy P. One-Electron Reduction of 3,3,6,6-Tetramethyl-3,4,6,7,9,10-hexahydro-(1,8)-(2H,5H)-acridinedione: A Pulse Radiolysis Study. J Phys Chem A 1998. [DOI: 10.1021/jp9809989] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
50
|
Pandey G, Sesha Poleswara Rao KS, Palit DK, Mittal JP. Generation and Mesolysis of PhSeSiR3]•-: Mechanistic Studies by Laser Flash Photolysis and Application for Bimolecular Group Transfer Radical Reactions. J Org Chem 1998. [DOI: 10.1021/jo972345e] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ganesh Pandey
- Division of Organic Chemistry (Synthesis), National Chemical Laboratory, Pune-411 008, India, and Chemistry Division, Bhabha Atomic Research Center, Mumbai-400 085, India
| | - K. S. Sesha Poleswara Rao
- Division of Organic Chemistry (Synthesis), National Chemical Laboratory, Pune-411 008, India, and Chemistry Division, Bhabha Atomic Research Center, Mumbai-400 085, India
| | - D. K. Palit
- Division of Organic Chemistry (Synthesis), National Chemical Laboratory, Pune-411 008, India, and Chemistry Division, Bhabha Atomic Research Center, Mumbai-400 085, India
| | - J. P. Mittal
- Division of Organic Chemistry (Synthesis), National Chemical Laboratory, Pune-411 008, India, and Chemistry Division, Bhabha Atomic Research Center, Mumbai-400 085, India
| |
Collapse
|