Chemistry: Recent submissions

Now showing items 1-20 of 445

Identification of Major Interfering Substances for Heavy Metal Determination in Northern Sea Areas of Sri Lanka

Anoja, N.; De Silva, R. C. L.; Prabagar, J. (2024)

This study investigated the physicochemical characteristics of seawater from five locations along the northern Sri Lankan coast, encompassing areas with varying degrees of anthropogenic activity. The analysis revealed ...
Monitoring of Rainwater Quality in Kandy and Peradeniya, Sri Lanka

Wijewantha, H.L.S.S.; Dharaka, B.D.P.; Priyantha, N.; Deeyamulla, M.P. (2023)

The composition of atmospheric deposition is a measure of air quality, an important aspect of the health of the ecosystem. Consequently, continuous monitoring of atmospheric deposition is crucial to obtain remedial measures ...
Chemical composition of rainwater at three sites in Kandy/Peradeniya, Sri Lanka, and its effect on air pollution

Madhushani, L.S.; Dharmapriya, T.N.; Dharaka, B.D.P.; Deeyamulla, M.P.; Priyantha, N. (2023)

The composition of atmospheric precipitation, an important criterion considered to account for air pollution, is usually determined with respect to wet precipitation and dry precipitation, or as bulk deposition in combined ...
Antimicrobial Properties of Seaweeds

Weerasinghe, Lakshanee; Kadigamuwa, Chamila Chathuranga; Mapa, Mapa Mudiyanselage Sumudu Tharangani (Bentham Science, 2024)

Antimicrobial activity is defined as the ability to destroy or inhibit the growth of microorganisms. Antimicrobial compounds are naturally occurring or synthetic organic compounds having antimicrobial activity. Recently, ...
Exploring the toxic metal contamination and unveiling the risks in staple grains grown in a CKDu hotspot in Sri Lanka

Perera, M. A. S. N.; Perera, W. P. R. T.; Perera, P. L. R. A.; Kadigamuwa, C.C.; Liyanage, J. A.; Premaratne, W. A. P. J. (Faculty of Graduate Studies - University of Kelaniya, Sri Lanka, 2023)

Toxic metals in dietary grains could pose health risks from direct ingestion. This investigation aims to analyze the concentrations of toxic metals in selected dietary grains and conduct a comparative risk assessment in a ...
Toxic metal contamination in food chains via paddy plant; A study in CKDu endemic area in North Western Province, Sri Lanka

Gunathilaka, V. H. N. M.; Perera, W. P. R. T.; Perera, P. L. R. A.; Kadigamuwa, C.C.; Liyanage, J. A.; Premaratne, W. A. P. J. (Faculty of Graduate Studies - University of Kelaniya, Sri Lanka, 2024)

This study addresses the urgent need for a comprehensive risk assessment of toxic metal contamination in the food chain via paddy plants in CKDu-affected areas emphasizing the health hazards associated with the transfer ...
Comparison of proximate composition and fiber content between varieties of sri lankan green leafy vegetables ipomea aquatica, centella asiatica and sesbania grandiflora

Dahanayaka, Lakshanee W.; Kadigamuwa, C. C.; Mapa, Mapa S. T. (Nastec - Sri Lanka, National Science And Technology Commission, 2024)

Nutrition stands as vital for human existence. Despite its critical importance, nations with lower and middle incomes, such as Sri Lanka, can be exceptionally susceptible to food insecurity, especially in the face of ...
Evaluation of phytochemical composition and biological activities of ethanol extract of bark of Dialium ovoideum Thwaites

Chathurangani, D.A. Upeka; Udukala, Dinusha N.; Gunaratna, Medha J. (Chathurangani,D. A. Upeka and Udukala,Dinusha N. and Gunaratna,Medha J., 20240352316, English, Journal article, India, doi:10.5958/0975-6892.2024.00037.8, 0975-4261 0975-6892, 16, (2), New Delhi, Medicinal Plants - International Journal of Phytomedicines and Related Industries, (350–358), Society for Conservation and Resource Development of Medicinal Plants, Evaluation of phytochemical composition and biological activities of ethanol extract of bark of Dialium ovoideum thwaites., (2024), 2024)

The present study aimed to investigate the biological activities of the ethanol extract of the bark of Dialium ovoideum Thwaites (DOEB), which is an endemic plant of Sri Lanka with various medicinal values. A powdered bark ...
Synthesis and Anti-inflammatory Activities of 4-Arylidene-2-phenyloxazol-5(4H)-one Derivatives

Hewage, Visal c. Lorensu; Gunaratna, Medha j.; Egodawaththa, Nishal m.; Nesnas, Nasri (2024)

In this study, four different 4-arylidene-2-phenyloxazol-5(4H)-ones (5a-d), were synthesized via the Erlenmeyer-Plöchl reaction and characterized by FT-IR, 1H NMR, 13C NMR and mass spectroscopic techniques. Evaluation of ...
Evaluation of phytochemical composition and novel bioactivities from fresh fruit of Garcinia quaesita Pierre

Ekanayaka, K.S.J.; Gunaratna, Medha J.; Nusfa, M.L.F. (2024)

The fruit rind of Garcinia quaesita Pierre is known as a condiment with therapeutic potential, including antioxidant, antihyperglycemic, and anti-proliferative effects. However, there has been a lack of in-depth investigation ...
GC-MS Analysis and Toxicological Evaluation of Asparagus falcatus Linn. Extracts in Healthy Wistar Rats Using a Biochemical, Hematological and Histological Approach

Amarasiri, Sachinthi S.; Attanayake, Anoja P.; Wanniarachchi, Dakshika C.; Mudduwa, Lakmini K. B.; Jayatilaka, Kamani A. P. W. (2023)

The present study evaluates the potential toxic/adverse effects of selected extracts derived from Asparagus falcatus Linn. (family; Asparagaceae) leaves via acute and sub-acute oral toxicity assessment in healthy Wistar ...
Exploration of Nephrotoxic Heavy Metal Contaminants in Edible Fish and Reservoir Sediments Linking with CKDu Prevalence of Sri Lanka

Dayananda, Nalika; Liyanage, Janitha; Kannangara, Sagarika (2024)

Inland fish is one of the main protein sources of the regular diets of remote communities in Sri Lanka where the incidences of Chronic Kidney Disease of unknown etiology (CKDu) have significantly increased. Nevertheless, ...
Assessing Nephrotoxic Heavy Metal Contamination in Reservoir Sediments: Implications for Human Health and Aquatic Ecosystems

Dayananda, M.D.N.R.; Liyanage, J.A.; Kannangara, S.D. (Gampaha Wickramarachchi University of Indigenous Medicine, 2024)

Background: Wetlands, often referred to as the "kidneys of the earth," play a crucial role in ecosystem services. This study focuses on reservoirs in dry zone, in Sri Lanka, recognizing their significance in fulfilling ...
A review on plant mediated synthesis of silver nanoparticles as a greener approach

Wickramarachchi, P.A.S.R.; Paragodaarachchi, Y.L. (University of Kelaniya, Sri Lanka, 2021)

Metal nanoparticles are used in all phases of science, including medical fields. They still seduce scientists to explore new dimensions for their respective value, which is usually attributed to their corresponding small ...
In vivo and in silico Antifungal Activity of Cinnamon Leaf Oil and Lemongrass Oil containing Chitosan Microcapsules against Aspergillus flavus

Kumarathunga, P.G.J.D.; Chathurangi, S.; Rajapaksha, R.P.S.P.; Sooriyawansha, A.M.S.C.; Jayawardena, P.A.S.N.P.; Dananjaya, P.D.H.; Alwis, M.D.N.; Kadigamuwa, C.C.; Dahanayake, J.N.; Wickramarachchi, Suranga (2024-04)

This study aimed to examine the potentiality of microencapsulated cinnamon leaf oil (CNO-CS-MCs) and lemongrass oil (LGO-CS-MCs) as natural fungicides against Aspergillus flavus. Oil encapsulated microcapsules were ...
Gelatin/chitosan-lactate/curcuma hydroethanolic extract-based antimicrobial films: Preparation, characterization, and application on chicken meat

Thakur, Rahul; Wickramarachchi, Suranga; Pal, K.; Sarkar, P. (Food Hydrocolloids, 2024-04)

The demand for active food packaging to extend the shelf-life of food products is increasing worldwide. The target of this work was to prepare and characterize the gelatin (G), gelatin/chitosan-lactate (G/ChL), and ...
Evaluation of phytochemical composition and novel bioactivities from fresh fruit of Garcinia quaesita Pierre

Ekanayaka, K.S.J.; Gunaratna, Medha J. (Indian Journal.com, 2024)

The fruit rind of Garcinia quaesita Pierre is known as a condiment with therapeutic potential, including antioxidant, antihyperglycemic, and anti-proliferative effects. However, there has been a lack of in-depth investigation ...
Mapping of Water and Soil Quality Parameters in the Gampaha-Ihalagama East and Eldeniya East Grama Niladhari Divisions, Sri Lanka

Deraniyagala, P.E.P.S.; Heenkenda, H.M.D.S.D.; De Silva, R.C.L. (University of Ruhuna, Sri Lanka, 2024)

Water and soil are important natural resources, and the study of their distribution is of great interest. The Grama Niladhari Divisions, Ihalagama-East and Eldeniya-East, located in the Gampaha district, are selected as ...
Evaluation of phytochemical composition and biological activities of ethanol extract of bark of Dialium ovoideum Thwaites

Chathurangani, D.A. Upeka; Udukala, Dinusha N.; Gunaratna, Medha J. (Journal of Environmental Accounting and Management, 2023)

Antioxidants have been discovered to play an important unction in protecting the body rom damage caused by reactive ree radicals via interacting with ree radicals, chelating, and serving as oxygen scavengers. Dialium ...
Extraction of Alumina from Kaolin found in Gem Mining Sites of Sri Lanka

Karunarathna, Y. D. T. I.; De Silva, R. C. L. (2024)

Purpose: The research focused on the insurance industry performance of India, Pakistan & Sri Lanka were supposed to find the impact of product diversification and Insurance activity towards industry performance measured ...

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