Science: Recent submissions

Now showing items 861-880 of 3802

Luminescent studies of europium (III) fluorobenzoic acid derivatives: Correlating the calculated electronic energies and the experimental luminescent efficiencies through computational studies

Silva, C. R. De; Fratarcangeli, M. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

Europium (III)-based luminescent complexes promise extensive potential applications in immunoassay technology, high throughput drug screening, organic light emitting diodes (OLEDs), and biomedical imaging. Europium-ligand ...
Europium-doped calcium fluoride nanoparticles coated with melanocortin stimulating hormone-4 for potential biomedical imaging

Silva, C. R. De; Fratarcangeli, M.; Rathbone, M. R.; Hendren, S. (2021)

Lanthanide-based nanomaterials have promising applications including high throughput drug screening, bio-analytical sensing, and biomedical imaging. Among many lanthanide-based nanomaterials, europium (III) ions are of ...
Stability of the performance of inverted P3HT/PCBM based organic solar cells

Weerasinghe, M. L. A.; Wanninayake, W. T. M. A. P. K.; Jayathilaka, K. M. D. C.; Wijesundera, R. P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

The organic solar cell extracts and converts solar energy to electricity without environmental hazardous including global warming. Bulk heterojunction (BHJ) structure of the organic solar cells (OSCs) have higher performance ...
Qualitative review of the photometric data of six ultra-faint dwarf galaxies

Perera, B.K. S.; Wijesekera, J. V.; Rathnayake, K. S.; Udani, H. R. S.; Sigera, P. L. V. J.; Senarath, W. C. S.; Wimalaweera, P. V. N. D. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

This work was based on the main sequence (MS), the sub and red giant branches (SGB & RGB), the horizontal branch (HB), and the blue stragglers' stellar populations of six ultra-faint dwarf (UFD) galaxies: Bootes I (Boo I), ...
Investigation of the effect of source temperature on close-spaced sublimated CdTe thin films

Lakmal, A. A. I.; Kumarasinghe, R. K. K. G. R. G.; Seneviratne, V. A.; Dassanayake, B. S. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

Cadmium telluride (CdTe) is one of the most promising II-VI group semiconductors used to fabricate heterojunction thin-film solar cells. Close-spaced sublimation is one of the best techniques for the deposition of ...
Effect of annealing temperature on the wetting properties of electrodeposited Cu2O

Shakya, M. D. P. A.; Jayathilaka, K. M. D. C.; Wijesundera, R. P.; Wanninayake, W. T. M. P. K. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

Surface wettability is one of the important physical parameters, which manifests the affinity of a liquid towards a solid phase. In recent years, controlling the wettability of solid surfaces has drawn significant attention ...
Synthesis and characterization of ionic liquid and hydroxyapatite nano-filler based sodium ion conducting gel polymer electrolytes

Nayanakanthi, M. D. M.; Pitawala, H. M. J. C.; Ratnasekera, J. L. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

Interesting property such as high abundance and non-toxic character of sodium and high storage capacity and durability of sodium batteries make them an attractive energy storage system and a potential alternative to lithium ...
Use of cuprous oxide thin film semiconductors for dissolved oxygen sensing: A preliminary study

Wijesooriya, H. E.; Seneviratne, J. A.; Jayathilaka, K. M. D. C.; Wijesundera, R. P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

Monitoring and maintaining the quality of water is extremely important as it can severely affect the health of humans as well as animals. Dissolved oxygen is one of the key indications of water quality. Cuprous Oxide (Cu2O) ...
Electrochemical detection of Cd2+ ions in aqueous samples at nanoelectrodes

Ahmed, M. M. N.; Bodowara, F.; Penteado, J.; Zhou, W.; Xavier, J.; Pathirathna, P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

Contamination from heavy metals has been a potent threat to the environment, and its detrimental effects are felt globally. They bio-accumulate through the food chain, thus leaving humans highly vulnerable to overwhelming ...
Ultrafast, simultaneous detection of neurotransmitters and heavy metals at four- bore carbon-fiber microelectrodes using fast-scan cyclic voltammetry

Laud, M,; Ahmed, M. M. N; Penteado, J; Sibert, L; Page, R.; Pathirathna, P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

Progressive deterioration of brain cells leads to devastating neurological disorders such as Parkinson's and Alzheimer's. Despite the efforts taken by scientists, the pharmaceutical industry, and medical professionals to ...
A novel, ultra-fast, robust microelectrodes for real-time detection of heavy metals using fast-scan cyclic voltammetry

Abbood, R.; Alkhalaf, A. S. K.; Xavier, J.; Pathirathna, P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

Humans are highly vulnerable to being exposed to multiple sources of arsenic and cadmium, such as drinking water, foods, inhalation, and occupational means. The detrimental effects of arsenic and cadmium poisoning are well ...
Synthesis and characterization of lanthanide-based nanoparticles for potential biomedical applications

De Silva, C. R. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

Lanthanide-based nanoparticles show unique luminescent properties including monochromatic light emission, longer luminescent lifetimes, stable and well-defined emission bands, large Stokes shifts, and limited photo-bleaching. ...
An analysis of the technical efficiency of protected agriculture in dry zone area of Sri Lanka

Wickramasinghe, H. M. K.; Dissanayaka, D. M. P. V. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

Efficiency is an important factor in productivity growth. It helps in utilizing scarce resources in an effective manner to derive efficient consumption. Identifying the determinants of efficiency levels is a major task in ...
A mathematical model for the description of the drug distribution in the human body

Madhushika, M. A. G.; Munasinghe, J. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

In pharmaceutical industry, various researches have been carried to discover new drugs and to find effective ways of transporting drugs into target parts of the human body. Oral administration, intravenous and inhalations ...
Topological indices of some anti-cancer molecular graphs and dendrimer structures

Sebastian, S. L. D. J.; Perera, K. K. K. R. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

Cancer disease are leading cause of death in the world as well as in Sri Lanka. Anticancer drugs and delivery dendrimers are one of the important medicine in curing cancers. Various experiments were performed to avoid the ...
A mathematical model to investigate the antimicrobial activity of Ceylon high- grown green tea and black tea against human pathogenic bacteria and yeast species

Samaraweera, S. A.; Munasinghe, J.; Gunasena, G. D. D. K. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

Ceylon tea has a great demand worldwide and considered as one of the finest tea in the world. Green and black tea are the widely consumed types of tea in general. Tea has many biologically active compounds, and these ...
Some properties of expanding universe with variable lambda ()

Karunathilaka, E. L. N. L.; Katugampala, K. D. W. J. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

When the Universe is expanding, some of its properties radius, density, volume and total mass would be changed with cosmic time. Those changes can be obtained by using experimental data or solving suitable mathematical ...
Dynamic of a capillary ridge of free surface flow on an inclined heated plate

Nisansala, K. A. D. S.; Karunathilaka, N. G. A. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

Formation of capillary ridge on a gravity-driven thin liquid film flowing over a plate is used in lots of commercial applications. Painting and coating, contact lens manufacturing, microchips and microchips fluidic devises ...
An approximate solution to Lane-Emden equation of the polytrophic index three by using Differential Transform Method

Aththanayaka, A. M. S. K.; Wimaladharma, N. A. S. N. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

Lane-Emden equation is a second order dimensionless non-linear ordinary differential equation which can be used to describe internal structure of a star, the thermal behaviour of a spherical cloud of gas, isothermal gas ...
Fabrication of FTO/CBD-CdS/ED-CdTe/Cu/Au solar cells and boosting its performance by CdCl2 treatment

Gajanayake, G. K. U. P.; Silva, D. S. M. De; Atapattu, H. Y. R.; Lakmal, A. A. I. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

The thin film CdS/CdTe solar cells are promising cost-effective clean energy generating devices against the global energy crisis. Chemical bath deposition (CBD) and electrodeposition (ED) were recognized as being simple ...

Recently added

Science: Recent submissions

Search Digital Repository

Browse

All of DSpace

This Community

My Account