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Islam F.,Bangladesh Council of Scientific and Industrial Research Laboratories Chittagong | Hossain M.A.,Chittagong College | Shah N.M.,Chittagong University | Barua H.T.,Chittagong University | And 3 more authors.
Journal of Chemistry | Year: 2015

We represent a metal complex which has been synthesized by the simple reaction with Ni(II) chloride and pyridine (as a lignd) affording a complex having the molecular formula [NiC5H5N2Cl2], characterized on the basis of elemental analyses, electronic, infrared, 1H NMR, 13C NMR spectra, magnetic susceptibility, and also aid of molar conductivity measurement. Conductivity measurement reveals nonelectrolytic nature of the complex. IR and 13C NMR spectra reveal the presence of cis- and trans-structure. On the basis of above analyses the square planar cis- and trans-structures are proposed for the prepared complex. © 2015 Faridul Islam et al.


Islam F.,Bangladesh Council of Scientific and Industrial Research Laboratories Chittagong | Morshed A.J.M.,Bangladesh Council of Scientific and Industrial Research Laboratories Chittagong | Rahman M.,National University of Malaysia | Akhtar P.,Chittagong University | And 4 more authors.
Asian Journal of Chemistry | Year: 2015

Heavy and trace metals are certainly stirring elements which are existing with the environment. These substances go to the products by various process which we consume and use every day. In this analysis the heavy metals i.e. Cd, Pb and Hg with some trace elements, i.e. Al, Mg, Fe, Cu, Mn, As, Co, Zn, Cr and Ni were numerically assessed using atomic absorption spectrometry. The result indicates the concentration of Hg in the both synthetic and herbal shampoo was exceeded the WHO permissible limit. Aluminium value was nearly three times higher in synthetic shampoo than that of herbal shampoo. This study has revealed that the alarming amount of heavy metals and trace elements is present in most of the branded products including both of the synthetic and herbal. As a result, the continuous use of these cosmetics cause an adverse effects of heavy metal toxicity.


Rahman M.S.,University of Dhaka | Rahman M.S.,Bangladesh Council of Scientific and Industrial Research Laboratories Chittagong | Khatun H.,University of Dhaka
Bangladesh Journal of Botany | Year: 2014

Two species from each of the genus Fissidens Hedw. and Hyophila Brid. are dealt with. The species are Fissidens taxifolius Hedw., F. involutus Wils. ex Mitt., Hyophila perannulata Ren. et Card. and H. rosea Williams reportd as new to the Acrocarpous moss flora of Bangladesh. A detailed taxonomic description of each species with location, date of collection, name of collector and artificial keys of species are provided.


Halder M.,Bangladesh Council of Scientific and Industrial Research Laboratories Chittagong | Dhar P.P.,King Saud University | Nandi N.C.,Bangladesh Council of Scientific and Industrial Research Laboratories Chittagong | Akhter S.,Bangladesh Council of Scientific and Industrial Research Laboratories Chittagong
Research Journal of Biotechnology | Year: 2015

Study on the relationship between the soil properties and arbuscular mycorrhizal (AM) colonization of different plant species in the BCSIR Laboratories, Chittagong campus was carried out. Fine roots and rhizosphere soil of Acacia auriculiformis, Acalypha indica, Alpinia nigra, Artocarpus heterophyllus, Averrhoa carambola, Cinnamomum tamala, Elettaria cardamomum, Ficus benghalensis, Gardenia jasminoides, Hibiscus rosa-sinensis, Jasminum sambac, Manihot esculenta, Mimosa pudica, Mimusops elengi, Pinus palustris, Piper longum, Rauwolfia teraphylla, Sesbania sesban, Swietenia mahagoni and Tinospora cordifolia were collected, stained, processed and analyzed by established methods. Highest AM colonization was in G. jasminoides and the lowest was in S. sesban. No AM colonization occurred in P. palustris. There were no regular correlations among the soil properties and AM properties. Negative correlation between arbuscular mycorrhizal colonization soil phosphorus was significant (r=-0.646, p<0.01%). Significant and positive correlations between soil K contents, (r=0.826, p<0.01 for percent root colonization; r=0.601, p<0.01 for vesicular colonization and r=0.572, p<0.01 for arbuscular colonization) and AM properties were remarkable. EC was significantly related with root colonization (r=-0.535, p<0.05%). Vesicular colonization was significantly positive with the colonization. Independent influence of soil properties on the AM properties of host plant species for their nutritional acquisition in the field conditions was emphasized.


Rahman M.S.,Bangladesh Council of Scientific and Industrial Research Laboratories Chittagong | Akter R.,Bangladesh Council of Scientific and Industrial Research Laboratories Chittagong | Mazumdar S.,Bangladesh Council of Scientific and Industrial Research Laboratories Chittagong | Islam F.,Bangladesh Council of Scientific and Industrial Research Laboratories Chittagong | And 3 more authors.
Asian Pacific Journal of Tropical Biomedicine | Year: 2015

Objective: To explore the antidiabetic and the antidiarrhoeal effects of ethanolic extracts of Cynodon dactylon Pers. aerial parts (EECA) in Wistar rats. Methods: To assess the antidiabetic activity of EECA, oral glucose tolerance test (OGTT) model and alloxan induced diabetic test (AIDT) model were performed. The EECA was used at the doses of 2 g/kg, 1 g/kg and 500 mg/kg body weight in OGTT model and 1.5 g/kg was used for AIDT model. Castor oil-induced diarrhoeal model and gastrointestinal motility test with barium sulphate milk model were performed for evaluating the antidiarrhoeal effects at doses of 1 g/kg, 750 mg/kg respectively. Results: The dose 2 g/kg in OGTT and 1.5 g/kg in AIDT model blood glucose levels decreased significantly (P < 0.01) in Wistar rats that showed antidiabetic effect of EECA. After administration of EECA at the dose of 1 g/kg, the extract showed significant (P < 0.05) antidiarrhoeal activity in castor oil-induced diarrhoeal model. The results were also significant (P < 0.05) in barium sulphate milk model for the same dose by using above mentioned animals. Conclusions: It is concluded that EECA contains both antidiabetic and the antidiarrhoeal properties. © 2015 Hainan Medical University.

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