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Browsing Information Resources on Chemistry by Issue Date

Browsing Information Resources on Chemistry by Issue Date

Now showing items 1-20 of 44

Low - Cost ZnO - Based Ultraviolet-Infrared Dual-Band Detector Sensitized With PbS Quantum Dots

Jayaweera, P.V.V.; Pitigala, P.K.D.D.P.; Shao, J.F.; Tennakone, K.; Perera, A.G.U.; Jayaweera, P.M.; Baltrusaitis, J. (IEEE Electron Devices Society, 2013-12-23)

A low-cost photoconductive dual-band detector based on a ZnO film sensitized with lead sulfide quantum dots (PbS-QDs) is reported. The UV response arises from the interband absorption of UV radiation by ZnO, and the IR ...
Synthesis and Characterization of New Heterocyclic Compounds from the Reaction of 4,7-Dioxononanoic Acid With 1,2-Dinucleophiles

Padumadasa, C.; Abeysekera, A.M.; De Alwis, N. (2015)

Pdf is attached
Antioxidant and Cytotoxic Activities of Proanthocyanidins of the Bark of Thespesia populnea (L.)

Padumadasa, C.; Abeysekera, A.M.; Thabrew, I.; Ediriweera, G. (2015)

Thespesia populnea is a tree that belongs to the family Malvaceae. In Sri Lanka it is commonly known as Gan-suriya. Almost all the parts of the tree have been utilized traditionally as medicine to treat skin and liver ...
A Study of the Effect of Ethylacetate Soluble Proanthocyanidins on Histological Changes of Female Rat Endometrium

Padumadasa, C.; Dharmadana, D.; Seneviratne, B.; Abeysekera, A.M.; Thammitiyagodage, M.G.; Padumadasa, S. (2015)

Proanthocyanidins are secondary metabolites found in plants and they belong to a class of polyphenolic compounds called flavonoids. Proanthocyanidins have been reported to exhibit diverse biological activities. We have ...
Qualitative Determination of the Levels of Polycyclic Aromatic Hydrocarbons in Contaminated Macromolecular Compounds using Gas Chromatography-Mass Spectrometry

Silva, K.L.S.; Chinthaka, S.D.M.; Deraniyagala, S.P.; Perera, B.A. (Sri Lanka Association for the Advancement of Science, Colombo 07, 2015)

Food contamination can occur due to many different groups of chemical compounds in the environment. Polycyclic Aromatic Hydrocarbons (PAHs) are a group of organic compounds, which have been classified as possible and proven ...
Study of the Pretreatment (Shodhana) of Roots of Plumbago indica L. in Ayurveda

Padumadasa, C.; Abeysekera, A.M.; Meedin, S.D.K. (2015)

Plumbago indica L. (Plumbaginaceae) is a medicinal herb, credited with vast number of potential therapeutic properties which is heavily used in traditional and ayurvedic medicinal systems in Sri Lanka and India. Naphthoquinones ...
Investigation of Ethyl Acetate Soluble Proanthocyanidins in the Inflorescence of Cocos nucifera L.

Padumadasa, C.; Dharmadana, D.; Abeysekera, A.M.; Thammatiyagoda, M.G. (2015)

The immature inflorescence of Cocos nucifera L. variety aurantiaca is used in Ayurveda for the treatment of menorrhagia in Sri Lanka. Preliminary phytochemical screening revealed that immature inflorescence predominantly ...
Effect of Aqueous Soluble Proanthocyanidins from Cocos Nucifera L. Inflorescence on Progesterone and Oestrogen Levels in Female Rats

Padumadasa, C.; Dharmadana, D.; Abeysekera, A.M.; Thammatiyagoda, M.G. (2015)

The immature inflorescence of Cocos nucifera L. variety aurantiaca is used by Ayurvedic and traditional medical practitioners for the treatment of menorrhargia in Sri Lanka. We have previously reported the effect of ethyl ...
A Study of the Removal Characteristics of Cu (II) Ions from Aqueous Solutions by a Low-Cost Adsorbent

Jayakodiarachchi, N.; Jayaweera, C.D. (University of Sri Jayewardenepura, Nugegoda, 2015)

Heavy metal pollution has become one of the most critical environmental problems throughout the world today, since they persist in the environment without degradation. Present study explored the feasibility of using Jack ...
Antimicrobial activity of silver nanoparticles capped with crude extract of Garcinia zeylanica and garcinol

Wijekoon, HPSK; Ekanayaka, EMAK; Peiris, MMK; Arachchi, NDH; Palliyaguru, L; Kumarasinghe, U.R.; Gunasekara, T.D.C.P.; Fernando, S.S.N.; Jayaweera, P.M. (Proceedings of the Scientific Sessions 2017 - FMS, USJP, 2015)

Attached
Self-Assembly of Carotenoids during Solution Casting of Solar Devices

Alwis, Dusantha; Ranaweera, Dilru; Etampawala, Thusitha; Dadmun, Mark; Udumalagala, Chandrika; Jayaweera, P.M. (2015-03)

Self assembly of carotenoids is a common phenomenon in nature and seems to be closely related to the functions of these natural dyes in solar devices. The large absorption coefficients in the visible region of carotenoids ...
Organic Compounds

Perera, Theshini; Fronczek, Frank R.; Watkins, Steven F. (2015-05-27)
Effect of Ethyl Acetate Soluble Proanthocyanidins from Cocos Nucifera L. Inflorescence on Progesterone and Oestrogen Levels in Female Rats

Padumadasa, C.; Dharmadana, D.; Abeysekera, A.M.; Thammatiyagoda, M.G. (2015-07)

The immature inflorescence of Cocos nucifera L. variety aurantiaca is used by Ayurvedic and traditional medical practitioners for the treatment of menorrhagia in Sri Lanka. We have previously reported the extraction, ...
Exposure of Male Wistar Rats To Commercially Available Ethrel Short Term, Long Term Effects and Recovery

Peiris, L.D.C.; Chathuranga, T.T.D. (OMICS International, 2015-08-24)

Recently, artificial fruit ripening using ethrel (ethephon) has become a major health concern. The present study investigated the effects of ethrel on behavioural, haematological and biochemical parameters. Rats were exposed ...
Surface Binding Properties of Natural Dyes Cis -Bixin and Cis-Norbixin Capped Silver Nano Particles

Ginige, G.K.; Jayaweera, P.M. (Postgraduate Institute of Science Research Congress, Sri Lanka, 2015-10-09)

Surface interactions of spherical shaped Ag nanoparticles (NPs) coated with sodium borohydride were investigated with two natural dyes, m - bixin and m -norbixin , that are found in annatto. The changes in the surface ...
A New Heterocyclic Compound from the Reaction of 9-Methyl-4,7-Dioxododecanoic Acid with Hydrazine

Padumadasa, C.; Gunaherath, G.M.K.B.; Jayakody, R.S.; Abeysekera, A.M. (University of Peradeniya, Peradeniya, 2015-11-05)

Pdf is attached
A Comparative Study of the Combustion Characteristics of Diesel, Kerosene, Biodiesel and Biodiesel Blends Using Laminar Diffusion Flame

Wijesinghe, N.C.; Prashantha, M.A.B.; Jayaweera, P.M. (2015-11-20)

Biodiesel is arising renewable substitute for conventional diesel fuel. Therefore, this research has paid attention about the behavior of selected physical parameters of biodiesel when blends with diesel and compare the ...
A Preliminary Investigation of the Shodhana (Detoxification) of Roots of Plumbago indica L. In Ayurveda

Padumadasa, C.; Abeysekera, A.M.; Meedin, S.D.K. (2015-12)

Plumbago indica L. (Plumbaginaceae) is a medicinal herb, credited with a number of therapeutic properties. It is widely used in Sri Lankan traditional medicine and in Ayurveda. In Sri Lanka, Ayurveda formulations which ...
Synthesis and Characterization of Novel Rhenium (L) Complexes towards Potential Biological Imaging Applications

Ranasinghe, K.; Hadunnetti, S.; Perera, I.C.; Perera, T. (Springer Open, 2016)

Background: Re(l) tricarbonyl complexes exhibit immense potential as fluorescence imaging agents. However, only a handful of rhenium complexes have been utilized in biological imaging. The present study describes the ...
Analysis of Enzyme-Responsive Peptide Surfaces by Raman Spectroscopy

Sahoo, J.K.; Sirimuthu, N.M.S.; Canning, A.; Zelzer, M.; Graham, D.; Ulijn, R.V. (The Royal Society of Chemistry, 2016)

We report on the use of Raman spectroscopy as a tool to characterise model peptide functionalised surfaces. By taking advantage of Raman reporters built into the peptide sequence, the enzymatic hydrolysis of these ...

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