Publications
33 Synthesis and characterization of nickel containing nanoparticles
S.R.Kavitha and M. Umadevi
Materials Science an Indian Journal (2011) ISSN no. 0974-7486 (accepted)
32 Investigations of preferential solvation on 1,4–dimethoxy–3–methyl anthracene–9,10–dione
M. Umadevi, M. Vadana Kumari, M. Suthandera Bharathi, P. Vanelle and T. Terme
Spectrochim. Acta Part A 78 (2011) 122-127.
31 Chemical synthesis of silver nanoparticles for solar cell applications
Jack Bonsak, Jeyanthinath Mayandi, Annett Thogersen, Erik Stensrud Marstein and Umadevi Mahalingam
Physica Status Solidi C 8 (2011) 924-927. doi: 10.1002/pssc.20100275
30 Influence of silver nanaoparticles on 2,3–bis(chloromethyl)anthracene–1,4,9,10–tetraone
M.Umadevi, N. Ammakutti Sridevi, A.S. Sharmila, Beulah J.M. Rajkumar, M. Briget Mary, P. Vanelle, T. Terme and O. Khoumeri
J. Fluorescence 20 (2010) 153-161
29 Fourier transformed infrared spectral investigations of molecular interactions in propionic acid–2–propanol binary system
M.Umadevi and Ammu E. Thomas
Spectrochim. Acta Part A 75 (2010) 1181-1190
28 Investigations of molecular interactions in propionic acid–N,N–dimethyl formamide binary system – FTIR study
M.Umadevi and R. Regi Poornima
Spectrochim. Acta Part A 73 (2009) 815-822
27 Fluorescence quenching of 1,4–dihydroxy–2,3–dimethyl–9,10–anthraquinone by silver nanoparticles: Size effect
M.Umadevi, P.Vanelle, T.Terme, Beulah J.M.Rajkumar, and V.Ramakrishnan
J. Fluorescence. 19 (2009) 3-10
26 Spectral investigations of solvatochromism and preferential solvation on 1,4-dihydroxy-2,3-dimethyl-9,10-anthraquinone
M.Umadevi, P.Vanelle, T.Terme, Beulah J.M.Rajkumar, and V.Ramakrishnan
J. Fluorescence. 18 (2008) 1139-1149
25 Preferential solvation of acridine in binary mixtures
M.Umadevi, A. Jegatha Christy, R. Helan Sudha, Beulah J.M.Rajkumar, and V.Ramakrishnan
Spectrochim. Acta 71A (2008) 773-778
24 Solvatochromic study of 1,2-dihydroxy anthraquinone in neat and binary solvent mixtures.
V.Sasirekha, M.Umadevi and V.Ramakrishnan
Spectrochim. Acta 69A (2008) 148-155
23 Absorption, fluorescence studies and Ab initio calculations on binary mixture of p-dimethylamino benzaldehyde
A.Anis Fathima, M.Umadevi and V.Ramakrishnan
J. Fluorescence 18 (2008) 383-391
22 Solvatochromism, preferential solvation of 2,3-bis(chloromethyl)-1,4-anthraquinone in binary mixtures and the molecular recognition towards p-tert-butyl-calix(4)arene.
V.Sasirekha, P.Vanelle, T.Terme, C. Meenakshi, M. Umadevi and V.Ramakrishnan
J. Fluorescence 17 (2007) 528-539
21 Changes in spectral features with varying mole fraction of anisaldehyde in binary mixtures.
A.Anis Fathima, M. Umadevi and V.Ramakrishnan
J. Raman Spectrosc. 38 (2007) 271-276
20 Spectral investigations of preferential solvation and solute-solvent interactions of 1,4-dimethylamino anthraquinone in CH2Cl2/C2H5OH Mixtures
M.Umadevi, A.Suvitha, K.Latha, Beulah J.M.Rajkumar, and V.Ramakrishnan
Spectrochim. Acta 67A (2007) 910-915
19 Raman spectral investigations on the mixed system (acetic acid +N,N–dimethyl formamide)
M.Umadevi, S.Anie Jesie Bella, and V.Ramakrishnan
J. Raman Spectrosc. 38 (2007) 231-238
18 Spectral investigations on 2,3-bis(chloromethyl)-1,4-anthraquinone: solvent effects and host –guest interactions
M.Umadevi, P.Vanelle, T.Terme and V.Ramakrishnan
J. Fluorescence 16 (2006) 569-579
17 Infrared and Raman spectroscopic studies of L-valine L-valinium perchlorate monohydrate
S. Pandiarajan, M.Umadevi, R.K.Rajaram and V.Ramakrishnan
Spectrochim. Acta 62A (2005) 630-636
16 FT IR and FT Raman studies of bis (L-proline) hydrogen nitrate and bis(L-proline) hydrogen perchlorate
S.Pandiarajan, M.Umadevi, V.Sasirekha, R.K.Rajaram and V.Ramakrishnan
J. Raman Spectrosc.36 (2005) 950-961
15 Vibrational spectra analysis of L–Lysine L–Lysinium dichloride nitrate
M.Briget Mary, M.Umadevi and V.Ramakrishnan
Spectrochim. Acta 61A (2005) 3124-3130
14 Vibrational spectral studies of (β–alanine) β–alaninium nitrate
M.Mohamed Ali Jinnah, M.Umadevi and V.Ramakrishnan
J. Raman Spectrosc. 35 (2004) 956-960
13 Infrared and Raman spectroscopic studies of L-methioninium nitrate
S.Pandiarajan, M.Umadevi, M.Briget Mary, R.K.Rajaram and V.Ramakrishnan
J. Raman Spectrosc. 35 (2004) 907-913
12 Vibrational spectral studies of L–Methionine L–Methioninium Perchlorate Monohydrate
M.Briget Mary, S.Pandiarajan, M.Umadevi and V.Ramakrishnan
Spectrochim. Acta 60A (2004) 2643-2651.
11 Infrared and laser Raman studies of bis(L–threoninium) sulphate monohydrate
M. Mohamed Ali Jinnah, M.Umadevi and V.Ramakrishnan
Spectrochim. Acta 60A (2004) 2977-2983.
10 Effect of silver nanoparticles on the fluorescence quantum yield of Rhodamine 6G determined using dual beam thermal lens method
A.Santhi, M.Umadevi, V.Ramakrishnan, P.Radhakrishnan and V.P.N.Nampoori
Spectrochim. Acta 60A (2004) 1077-1083.
09 Infrared and Raman spectral studies of L-ornithine nitrate
S.Ramaswamy, M.Umadevi, R.K.Rajaram, V.Ramakrishnan
J. Raman Spectrosc. 34 (2003) 806-812
08 Non linear optical absorption in silver nanosol
K.P.Unnikrishnan, V.P.N.Nampoori, V.Ramakrishnan, M.Umadevi and C.P.G.Vallabhan.
J. Phys. D App. Phys. 36 (2003) 1242-1245
07 Spectral investigations on 2-methyl-3-chloromethyl-1,4-naphthoquinone and 2,3-bis(chloromethyl)-1,4-naphthoquinone under laser excitation.
M.Umadevi, P.Vanelle, T.Terme and V.Ramakrishnan
J. Raman Spectrosc. 34 (2003) 172-179
06 Spectral investigations on 2-methyl-1,4-naphthoquinone: solvent effects, host-guest interaction & SERS
M.Umadevi, A.Ramasubbu, P.Vanelle and V.Ramakrishnan
J. Raman Spectrosc. 34 (2003) 112-120
05 Investigations on 1,5-diaminoanthraquinone by laser excitation
M.Umadevi and V.Ramakrishnan
J. Raman Spectrosc. 34 (2003) 13-20.
04 Spectral investigation on 1,5-dipiperidino anthraquinone
M.Umadevi and V.Ramakrishnan
Spectrochim. Acta 59A (2003) 393-403
03 Spectral investigation on 1,4-dimethylamino anthraquinone under laser excitation
M.Umadevi and V.Ramakrishnan
Spectrochim. Acta 58A (2002) 2941-2949.
02 Environmental effects on the fluorescence spectra of methylene blue and methylene green dyes.
S.Edwin Jayaraj, M.Umadevi and V.Ramakrishnan,
J. Inclusion Phenomena 40 (2001) 203-206
01 Molecular inclusion studies of substituted naphthoquinone molecules-laser fluorescence and optical absorption techniques.
V.Ramakrishnan, V.Geetha, M.Umadevi, A.Ramsubbu and N.Mathivanan
Bull. Electrochem. 17 (2001) 337-340
