Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Muhamad Hugerat"'
Publikováno v:
Preparative Biochemistry & Biotechnology. 52:19-29
Lipid-rich wastewater from the local dairy industry (cheese whey) in the Galilee, Israel was hydrolyzed by using two different sources of lipase as hydrolytic enzymes: fungal (Candida rogusa lipase-AY) and animal porcine pancreatic lipase(PPL). Pretr
Publikováno v:
Journal of Chemical Education. 90:1207-1211
Two of the most common student questions concerning polar–apolar liquid interfaces are the following: Why do not oil and water mix? How do soaps and detergents work to remove dirt? The questions can best be answered by incorporating concepts such a
Autor:
Francisco J. Guerra-Millan, Ahmad Basheer, Jorge Luis Vazquez-Olavarrieta, Jorge G. Ibanez, Riam Abu-Much, Muhamad Hugerat
Publikováno v:
Journal of Chemical Education. 88:670-672
The existence of solvated electrons has been known for a long time. Key methods for their production (i.e., photoionization of reducing ions, water radiolysis, and the reaction between H· and OH−) are unsuitable for most school laboratories. We de
Autor:
Henry Linschitz, Emmanuel Ojadi, Dietmar Stehlik, László Biczók, Muhamad Hugerat, Art van der Est, and Haim Levanon
Publikováno v:
The Journal of Physical Chemistry. 100:495-500
Spin-polarized transient EPR spectra measured at 9 GHz (X-band) and 24 GHz (K-band) are observed for the metalloporphyrin heterodimers formed by MTTAP (metal/free base meso-tetrakis[4-trimethylanilinium]porphyrin, M = Zn, Mg or H2) and CuTSPP (copper
Publikováno v:
The Journal of Physical Chemistry. 97:13198-13205
The photoexcited triplet state of a cofacial heterodimer, [Mg-H[sub 2]], comprised of Mg and H[sub 2] porphyrins, and photoinduced electron transfer (ET) between the heterodimer and duroquinone in 1:1 mixture of CH[sub 2]Cl[sub 2] ethanol were studie
Publikováno v:
Journal of the American Chemical Society. 114:3612-3618
Molecular compatibility of a guest porphyrin in a thermotropic nematic liquid crystalline host phase was shown to control the orientation of the porphyrin chromophore. In this manner, the normal alignment of a porphyrin plane parallel to the director
Publikováno v:
Chemical Physics Letters. 182:249-252
The orientation of the porphyrin ring in nematic liquid-crystalline phases is shown to be controlled by modification of guest—host dynamics through molecular design. Thus, attachment of rod-like mesogenic residues or “arms” to α,α,α,α,-meso
Publikováno v:
Chemical Physics Letters. 181:400-406
Oppositely charged zinc and copper porphyrins form ion-paired dimers which show biphasic decay of flash transients in fluid solution. In a glass at low temperature, two photoexcited components are also seen by time-resolved EPR. On the basis of lifet
Autor:
Muhamad Hugerat, Sobhi Basheer
Publikováno v:
Journal of Chemical Education. 78:1041
The accepted description for water in schools worldwide is a transparent and colorless liquid. Since students in lower grades (ages 8-13) often see warning signs "Do not drink this liquid--it is not water", we believe that presenting experiments that