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Improvement of the Quality of Coconut Oil by Incorporation of Antioxidants from Coconut Cake(poonac)

Senevirathne, K.N.; Dissanayake, D.M.S. (2006)

Synthesis, Spectroscopic Characterization and Reactivity of Ruthenocene Bearing Pentamagnesiated Cyclopentadienyl Ligands

Senevirathne, K.N.; Bretschneider-Hurley, A.; Winter, C.H. (Journal of American Chemistry Society, 1996)

Variation of Phenolic content in Coconut oil extracted by two conventional methods

Senevirathne, K.N.; Dissanayake, D.M.S. (International Journal of Food Science and Technology, 2008)

The Concept of Metal-Drug Synergism in the Search for Novel Chloroquine Derived Antimalarial Drugs

Rajapakse C S K (Chemistry in Sri Lanka, 2012)

Malaria is widespread in many tropical and subtropical regions and it kills more people than any other communicable disease except for tuberculosis. According to the World Health Organization, 300-500 million people ...

Synthesis, Reactivity, and Characterization of Ruthenocene Bearing Pentazincated Cyclopentadienyl Ligands

Senevirathne, K.N.; Winter, C.H. (Organometallics, 1997)

Arene-Ru(II)-Chloroquine Complexes as Potential Antimalarial Agents

Rajapakse C S K (ACS Mid-Atlantic Regional Meeting (MARM), Queensborough Community College, Queens, New York, United States, 2008)

Malaria is one of the most important parasitic diseases causing over nine million deaths annually. Chloroquine diphosphate (CQDP) was the most widely used drug against malaria but resistant strains of the parasite (Plasmodium ...

Arene-Ru-chloroquine complexes as potential antimalarial or antitumor agents: DNA binding and heme aggregation inhibition properties

Rajapakse C S K (The 234th ACS National Meeting, Boston, MA, United States, 2007)

The success of cisplatin has stimulated the area of inorganic medicinal chemistry. Ruthenium complexes are being developed for applications in several diseases including cancer and malaria. Chloroquine diphosphate (CQDP) ...

Chemistry of Natural and Photoswitchable Cyclic Enediynes

Pandithavidana D R (Chemistry in Sri Lanka, 2012)

The cyclic enediynes, a relatively new class of antitumor antibiotics are strong DNA cleavage agents and exhibit remarkable antitumor activities both in vitro and in vivo. Naturally occurring enediyne antitumor antibiotics ...

Palette of lipophilic bioconjugatable bacteriochlorins for construction of biohybrid light-harvesting architectures

Reddy, K.R.; Pandithavidana, D.R.; Parkes-Loach, P.S.; Loach, P.A.; Bocian, D.F.; Holten, D.; Lindsey, J.S. (Chemical Science, 2013)

The challenge of creating both pigment building blocks and scaffolding to organize a large number of such pigments has long constituted a central impediment to the construction of artificial light-harvesting architectures. ...

Photochemical Generation and Reversible Cycloaromatization of a 9-Membered Ring Cyclic Enediyne

Pandithavidana D R; Popik V V (The Southeast Regional Meeting of the American Chemical Society (SERMACS), Nashville, TN, USA, 2008)

The extreme cytotoxicity of natural enediyne antibiotics is attributed to the ability of the (Z)-3-ene-1,5-diyne fragment incorporated into a 10- or 9-membered ring cyclic system to undergo Bergman cyclization and producing ...

Photoswitchable Nine-Membered Cyclic Enediynes and Enyne-Allenes

Pandithavidana D R (LAP LAMBERT Academic Publishing, 2011)

The extreme cytotoxicity of natural enediyne antibiotics is attributed to the ability of the (Z)-3-ene-1,5-diyne fragment incorporated into a 10- or 9-membered ring cyclic system to undergo Bergman cyclization and producing ...

Photochemical Generation and Reversible Cycloaromatization of a Nine-Membered Ring Cyclic Enediyne

Pandithavidana D R; Poloukhtine A; Popik V V (Journal of the American Chemical Society, 2009)

Irradiation of the nine-membered ring enediyne precursor, which has one of its triple bonds masked as cyclopropenone, efficiently (? = 0.34) generates the reactive 4,5-benzocyclonona-2,6-diynol. The latter rapidly equilibrates ...

Photochemical Triggering of the Bergman and Myers?Saito Cyclizations

Pandithavidana D R; Kuzmin A; Popik V V (Australian Journal of Chemistry, 2010)

Two strategies for the photochemical generation of reactive enediyne compounds and their subsequent cycloaromatization to p-benzyne or ?,3-didehydrotoluene derivatives are discussed in this account. The first method employs ...

De novo synthesis and properties of analogues of the self-assembling chlorosomal bacteriochlorophylls

Mass, O.; Pandithavidana, D.R.; Ptaszek, M.; Santiago, K.; Springer, J.W.; Jiao, J.; Tang, Q.; Kirmaier, C.; Bocian, D.; Holten, D.; Lindsey, J.S. (New Journal of Chemistry, 2011)

Natural photosynthetic pigments bacteriochlorophyllsc, d and e in green bacteria undergo self-assembly to create an organized antenna system known as the chlorosome, which collects photons and funnels the resulting excitation ...

Kinetic investigation of reactions of atomic carbon, C[2p2(3PJ)], with simple nitrogen-containing molecules and aromatic heterocyclic compounds

Deeyamulla, M.P.; Husain, D. (Journal of Photochemistry and Photobiology, Chemistry A, 2007)

The reactions of atomic carbon in its electronic ground state, C[2p2(3PJ)], with some simple nitrogen-containing molecules and aromatic heterocyclic compounds have been investigated by time-resolved atomic resonance ...

Kinetic studies of atomic carbon, C[2p2(3PJ)], with small sulfur-containing molecules by time-resolved atomic resonance absorption spectroscopy in the vacuum ultra-violet

Deeyamulla, M.P.; Husain, D. (Journal of Photochemistry and Photobiology A: Chemistry, 2006)

We present a kinetic investigation of the reaction of atomic carbon in its electronic ground, C[2p2(3PJ)], with the small sulfur-containing molecules H2S, OCS, SO2 and CS2 by time-resolved atomic spectroscopy in the vacuum ...

Endotoxin induced production of interleukin-6 is enhanced by vitamin E deficiency and reduced by black tea extract

Amarakoon, A.M.; Tappia, P.S.; Grimble, R.F. (inflamm research, 1995)

Studies were performed to investigate the effect of a polyphenol rich extract from black tea and vitamin E on bacterial lipopolysaccharide (endotoxin) induced IL-6 production, alterations in liver glutathione and antioxidant ...

Kinetic Studies of Atomic Carbon, C[2p2(3PJ0), with Thiols by Time-resolved Atomic Resonance Absorption Spectroscopy in the Vacuum Ultra-Violet

Deeyamulla, M.P.; Husain, D. (Progress in Reaction Kinetics and Mechanism, 2005)

Reaction rates of atomic carbon in its electronic ground state, C[2p2(3PJ)], with a range of large sulfur-containing molecules have been investigated using time-resolved atomic spectroscopy in the vacuum ultraviolet following ...

Antifungal activity of black tea polyphenols (catechins and theaflavins) against Candida species.

Sitheeque, M.A.; Panagoda, G.J.; Yau, J.; Amarakoon, A.M.; Udagama, U.R.; Samaranayake, L.P. (Chemotherapy, 2009)

BACKGROUND/AIMS: The polyphenols catechins and theaflavins in black tea have been shown to possess many medicinal properties, including anticancer activity and some antifungal characteristics, but there have been few ...

Oral diuretic activity of hot water infusion of Sri Lankan black tea (Camellia sinensis L.) in rats.

Abeywickrama, K.R.; Ratnasooriya, W.D.; Amarakoon, A.M. (pharmacogn magazine, 2010)

BACKGROUND: Black tea [Camellia sinensis (L.) O. Kuntze (family: Theaceae)] has been used by Sri Lankan traditional practitioners to promote diuresis. However, the type and grade of tea is not specified. MATERIALS AND ...

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