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Aziz Muhammad Safwan,Islam Shumaila,Rosli Muhammad Izz,Basar Norazah,Krishnan Ganesan,Duralim Maisarah,Harun Sulaiman Wadi 한국물리학회 2022 Current Applied Physics Vol.39 No.-
Nonlinear optical properties of Coumarin-based compounds i.e., 3-acetyl-7-iethylaminocoumarin (C3) and 7-Ethylamino-4-trifluoromethylcoumarin (C500) is reported by Z-scan technique (Nd: YAG Continuous-wave 532 nm). The conventional C500 compound exhibited NLR properties in the order of n2 = 10–9, whereas the synthesized C3 compound manifested both NLR and NLA properties around n2 = 10–9 and β = 10–4, respectively. The results are obtained from different laser power PC500 = 0.10–0.18 W, while PC3 = 0.20–0.28 W. Both compounds provided excellent NLO attributes at consistent and stable outputs of open and closed-aperture signals, resulted in eminence of NLR and NLA values. The C3 compound is manifested reverse saturable absorption, optical limiting properties, and threshold at 0.3814 W. The exclusivity of NLR in C500 makes it suitable to develop as an optical switcher while synthesized C3 compound is more suitable as an optical limiter for safety.
Siti Nur Atiqah Md Othman,Satyajit Dey Sarker,Lutfun Nahar,Norazah Basar 셀메드 세포교정의약학회 2014 셀메드 (CellMed) Vol.4 No.4
Phaleria macrocarpa (Scheff.) Boerl. is a dense evergreen tree of the family Thymelaeceae. This plant is popular with the name of Mahkota dewa, which is literally translated as God’s Crown. All parts of this plant including fruits, seeds, stem, and leaves have well known therapeutic properties and have been extensively used in traditional medicine for the treatment of various diseases such as cancer, diabetes mellitus, allergies, kidney disorders, blood diseases, stroke, and acne with satisfactory results. Scientific findings on bioactivities of P. macrocarpa also demonstrated different pharmacological properties of various parts of this plant including cytotoxic, antidiabetic, antioxidant, anti-inflammatory, antibacterial, and antihypertensive activities. Phytochemicals studies of P. macrocarpa revealed the presence of several classes of compounds such as benzophenones, terpenoids, xanthones, lignans, acids, and sugars. This review aims to provide a critical overview on botanical description, traditional usage, phytochemicals, and pharmacological activities of P. macrocarpa .
Priyanka Saha,Anupam Das Talukdar,Sanjoy Singh Ningthoujam,Manabendra Dutta Choudhury,Deepa Nath,Lutfun Nahar,Satyajit Dey Sarker,Norazah Basar 셀메드 세포교정의약학회 2015 셀메드 (CellMed) Vol.5 No.3
Apart from being used as food, seed oils have also been used traditionally as medicinal products by several communities. However, the full medicinal potential of many seed oil plants is yet to be properly reviewed, particularly for their antimicrobial and antioxidant properties. North-East India has rich resources of seed oil plants. The availability of detailed information on these plants is quite limited. This review aims to explore and evaluate these seed oil plants of the North-East India with particular emphasis on their antimicrobial and antioxidant activities as well as chemical compositions. A comprehensive literature search on seed oil plants of this region has been performed. Seed oil yielding plants of this region can be categorized into two categories: plants that are used traditionally as sources of edible or medicinal oils and plants that are used for purposes other than as sources of oils. Many seed oil plants of this region have been reported to possess antimicrobial and antioxidant properties, and to produce various types of compounds. This review also highlights the importance of these plants in contributing to the local as well as the national economy of India.