Chemical sciences topic list of research papers
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Flavonoids from leaves of Mauritia flexuosa2013 / Djalma M. de Oliveira, Ezequias P. Siqueira, Yule R.F. Nunes, Betania B. Cota
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Considerations for the design and reporting of enzyme assays in high-throughput screening applications
Abstract This review describes the key steps and methods which are used to develop enzyme assays suitable for high-throughput screening (HTS) applications. The goals of HTS enzyme assays are defined relative to lower-throughput bench top assays and...
2014 / Michael G. Acker, Douglas S. Auld -
Antibacterial β-amyrin isolated from Laurencia microcladia
Abstract The present study aimed to isolate β-amyrin for the first time from Laurencia microcladia Kützing distributed at Dahab Coast, Aqaba Gulf, Egypt. The successive extraction of the ethanolic extract of the alga showed that, the petroleum ether ...
2013 / Neveen Abdel-Raouf, Nouf Mohammad Al-Enazi, Ali A. Al-Homaidan, Ibraheem Borie Mohammad Ibraheem, Monerah Rashed Al-Othman, et al. -
Laser ionization and spectroscopy of Cu in superfluid helium nanodroplets
Abstract Mass and optical spectroscopic methods are used for the analysis of copper (Cu) atoms and clusters doped to helium nanodroplets (HeN). A two-color resonant two-photon ionization scheme is applied to study the Cu 2P ...
2014 / Friedrich Lindebner, Andreas Kautsch, Markus Koch, Wolfgang E. Ernst -
Risk evaluation of impurities in topical excipients: The acetol case
Abstract Pharmaceutical excipients for topical use may contain impurities, which are often neglected from a toxicity qualification viewpoint. The possible impurities in the most frequently used topical excipients were evaluated in-silico for their...
2014 / Jente Boonen, Lieselotte Veryser, Lien Taevernier, Nathalie Roche, Kathelijne Peremans, et al. -
Adsorption of imazethapyr on six agricultural soils of Morocco: Evaluation of the impact of soil properties
Abstract Imazethapyr herbicide [5-ethyl-2-(4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl) nicotinic acid] is widely used on agricultural field crops in Morocco. It is reported that soil properties largely enhance the sorption of the herbicide in...
2013 / S. Oufqir, M. El Madani, M. Alaoui El Belghiti, A. Zrineh, M. El Azzouzi -
Analysis on clinically drug-used law for lung-intestine related diseases
Abstract Objective To analyze the application laws of clinical drugs by descriptive statistical method with the clinical literatures guided by “lung being connected with large intestine” used as the object. ...
2013 / Luan Gao, Jian Wang, Fenggang Li, Sihua Gao, Yong Deng -
Chemical constituents, anti-inflammatory, and antioxidant activities of Anisotes trisulcus
Abstract Anisotes trisulcus (Forssk.) Nees. (family Acanthaceae) aerial part is used in folk medicine in the Arabian peninsula for treatment of hepatic conditions. It showed different activities such as antibacterial,...
2014 / Mohamed A. El-Shanawany, Hanaa M. Sayed, Sabrin R.M. Ibrahim, Marwa A.A. Fayed -
Internal structure control of the TiO2 nanotubes and polysiloxane nanocomposites by nanosecond pulsed electric field
Abstract A facile technique has been introduced for incorporating TiO2 nanotubes (TNTs) in amorphous polysiloxane-based nanocomposite films and for linear and dense assembling of these TNTs (LATNTs) under application of nanosecond pulse electric...
2014 / Ji-Won Lee, Hong-Baek Cho, Tadachika Nakayama, Tsuneo Suzuki, Hisayuki Suematsu, et al. -
Quantitative determination of salvinorin A, a natural hallucinogen with abuse liability, in Internet-available Salvia divinorum and endemic species of Salvia in Taiwan
Abstract In recent years, recreational use of Salvia divinorum (Lamiaceae), a herbal drug that contains a hallucinogenic ingredient, salvinorin A, has become a new phenomenon among young drug users. In Taiwan, as in many other countries, dry leaves...
2014 / Po-Xiang Lin, Jih-Heng Li, Su-Hwei Chen, Hsien-Chang Chang, Rebecca McKetin -
Spectral Study of the Smoke Optical Density in Non-flaming Condition
Abstract Optical properties of smokes have to be known because of their influence on visibility which can be reduced during evacuation of people and firemen intervention. Measurements have been carried out in non-flaming condition on smokes produced ...
2013 / Julien Tissot, Martine Talbaut, Jerome Yon, Alexis Coppalle, Alexandre Bescond -
The trend of drug abuse in Taiwan during the years 1999 to 2011
Abstract Drug abuse has become one of the major public health issues in the world. In this study, we surveyed the laboratory analytical data of urine and non-urine cases collected through the Analytic Laboratory Drug Abuse Report System (ALDARS) and ...
2013 / Shu-Fen Lee, Jui Hsu, Wen-Ing Tsay -
Autoprotolysis constants determination of water-methanol mixtures and solvent effect
Abstract The autoprotolysis constants (pKap) of water-methanol mixtures were determined at 25°C over the composition range of 0 to 90 vol. % methanol using potentiometric method with a glass electrode. The electromotive forces (emf) values and...
2013 / Ali Farajtabar, Farrokh Gharib -
Efficient synthesis of new oxindol-based heterocyclic entities via indolin-2-one derivatives
Abstract New series of oxindol-based heterocyclic entities (2–11) have been designed and synthesized using indolin-2-one derivatives as key materials (1a–d). The chemical structures of the new synthesized compounds were characterized by FTIR, 1HNMR, ...
2014 / Howida T. Zaky, Mansoura I. Mohamed, Nadia G. Kandile -
Chemical Activation of an Activated Carbon Prepared from Coffee Residue
Abstract Coffee residue, a low-cost agricultural byproduct, was tested as a precursor for the production of porous carbons in a chemical scheme using phosphoric acid. The raw material was impregnated and then paralyzed respectively at 600 and 700°C...
2014 / Sekirifa Mohamed Lamine, Cherraye Ridha, Hadj-Mahammed Mahfoud, Chenine Mouad, Baameur Lotfi, et al. -
Tri-reforming of methane over Ni@SiO2 catalyst
Abstract A nickel-silica core@shell catalyst was applied for a methane tri-reforming process in a fixed-bed reactor. To determine the optimal condition of the tri-reforming process for production of syngas appropriate for methanol synthesis the...
2014 / Artur J. Majewski, Joseph Wood -
Estimation of Local Capillary Trapping Capacity from Geologic Models
Abstract Local capillary trapping, which is accumulation of CO2 under local capillary barriers, occurs during buoyancy-driven flow through rocks with fine-scale heterogeneity. However, fine-scale flow simulations that resolve the local heterogeneity ...
2013 / Ehsan Saadatpoor, Steven L. Bryant, Kamy Sepehrnoori -
Bioactive Equivalence of Combinatorial Components Identified in Screening of an Herbal Medicine2014 / Peng Liu, Hua Yang, Fang Long, Hai-Ping Hao, Xiaojun Xu, et al.
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Novel isochroman-triazoles and thiadiazole hybrids: Design, synthesis and antimicrobial activity
Abstract In this study, new isochroman-triazole (6a–e) and thiadiazole (7a–e) conjugates were obtained by heterocyclization of isochromanyl thiosemicarbazides (5a–e) under basic and acidic catalysis respectively. The latter were obtained by the...
2015 / Aamer Saeed, Amara Mumtaz -
Direct Observation of Reversible Electronic Energy Transfer Involving an Iridium Center2014 / Sergey A. Denisov, Yanouk Cudré, Peter Verwilst, Gediminas Jonusauskas, Marta Marín-Suárez, et al.