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  • Perera, K. Sarath. D. (Institute of chemistry Ceylon, 2022-10)
    Coordination chemistry of transition metals is very important as it helps students to understand various industrial, chemical and biological processes. Hemoglobin and chlorophyll are the two most important compounds ...
  • Perera, K.Sarath.D. (Institute of Chemistry Ceylon, 2022-06)
    Heterocycles are cyclic structures with at least one atom other than C and H. Most common heteroatoms are N, O and S. A large portion of natural products are heterocyclic compounds and some are being utilized as ...
  • Perera, K.Sarath. D. (Institute of Chemistry Ceylon, 2021-09)
    Nuclear Magnetic Resonance spectroscopy is probably the most powerful tool available for structure determination of organic, inorganic and organometallic compounds. It is also used by chemists to study mechanisms, ...
  • Jayasinghe, Susanthi (Institute of Chemistry Ceylon, 2023-01)
    Organic reactions are chemical processes that involve organic substances. The fundamental types of organic chemistry reactions include substitution reactions, elimination reactions, addition reactions, redox ...
  • Perera, K. Sarath D. (Institute of chemistry Ceylon, 2023-09)
    Organometallic chemistry is a branch of coordination chemistry and deals with compounds which have at least one metal-carbon bond. Since metals are more electropositive than carbon it is considered that the metal-carbon ...
  • Perera, K. Sarath. D. (Institute of chemistry Ceylon, 2022-10)
    Polymers play an important role in our day-to-day life. In Greek, poly means “many” and mer means “parts”. Polysaccharides, proteins and nucleic acids are the main bio-polymers/macromolecules. A large number of industries ...
  • Perera, K. Sarath. D. (Institute of Chemistry Ceylon, 2021-04)
    An atom consists of a very small (about 10–10 m in radius), dense and positively charged nucleus and negatively charged electrons. The nucleus consists of protons (p) and neutrons (n); ...
  • Ekanayake, Anusha; Rajapaksha, Anushka.U; Vithanage, Meththika (Institute of Chemistry Ceylon, 2021-06)
    Due to increased industrialization and urbanization, chromium (Cr) has been commonly used and released to the environment in a variety of industrial activities.
  • Suraweera, E. G. Divyanjalee; Weerasiri, Kushan C. (Institute of Chemistry Ceylon, 2021-06)
    Tyrosinase is a copper-containing enzyme that catalyses different reactions in melanin synthesis. It is a key enzyme in melanin biosynthesis, involve in determining the colour of mammalian skin and hair.
  • Perera, K. Sarath. D.; De Silva, Shanali (Institute of Chemistry Ceylon, 2024-01)
    Ionic liquids (ILs) are salts that exist in the liquid state below 100 o C or at room temperature. They are also referred to as molten salts, ionic fluids, liquid organic salts, neoteric solvents, and designer solvents
  • Perera, K. Sarath. D. (Institute of Chemistry Ceylon, 2020-01)
    Isomers (compounds with the same chemical formula) can be broadly classified into (i) stereoisomers (e.g. geometrical and optical) with the same connectivity but having different spatial arrangements and (ii) structural ...
  • Karunarathne, Mahesh C. (Institute of Chemistry, 2019-01)
  • Samarakkody, Ann Sanoji (Institute of chemistry Ceylon, 2022-06)
    Cells in an organism are under constant exposure to extrinsic and intrinsic stressors. Molecular mechanisms are in place to dampen the detrimental effects on the cell at the level of cellular pathways and also at ...
  • Rajapaksha, D; Rathnayake, P; Rosa, S. R. D (Institute of Chemistry Ceylon, 2022-10)
    Cancer is the major cause of morbidity and mortality around the globe. Cancer shows a significant annual increase, approximately 30,000 new cases were recorded in 2021. It has become one of the major health burdens in ...
  • Gamage, Jayani; Kosgahakumbura, L. N.; Gunasekera, S.; Cárdenas, P.; Jayasinghe, P. P. K. (Institute of Chemistry Ceylon, 2022-06)
    Axinella donnani is a marine sponge from the Axinellidae family known to have structurally unique and bioactive metabolites. The primary aim of this study was to discover novel chemical compounds, particularly peptides, ...
  • Perera, K. Sarath. D. (Institute of Chemistry, 2021-06)
    Mass spectrometry is an analytical technique used to obtain information on the structure and molecular weight/accurate mass of a given compound. The main components of the mass spectrometer are the ion source, mass ...
  • Fernando, Wasundara (Institute of chemistry Ceylon, 2022-06)
    Breast cancer is the most common cancer among women, with a new breast cancer being diagnosed every 29 seconds. Metastatic triple-negative breast cancer (TNBC) is an aggressive breast cancer subtype that responds poorly ...
  • Rajapakse, Wijeyadasa (Institute of chemistry Ceylon, 2023-06)
    It is with great pleasure that I issue this message on the occasion of the 52nd Annual Sessions, 2023 & 82nd Anniversary Celebrations of the Institute of Chemistry Ceylon which is one of the oldest professional bodies ...
  • Perera, K. Sarath. D. (Institute of Chemistry, 2020-09)
    Carbon monoxide is a good π-acceptor and the M-C bond in metal carbonyls [M(CO)n ] has a significant π character. Thus, the M-C bond is strengthened and the carbon oxygen bond is weakened with the increase in back bonding.
  • Perera, K. Sarath. D. (Institute of Chemistry Ceylon, 2021-04)
    We know that main group hydrides such as LiAlH4 and NaBH4 are the common reducing agents used by organic chemists to reduce aldehydes, ketones and carboxylic acids. Transition metal hydrides act as ...