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A CONVENIENT SYNTHESIS AND BIOLOGICAL ACTIVITY
OF NOVEL THIENO[2,3c]PYRAZOLE COMPOUNDS AS ANTIMICROBIAL
AND ANTIINFLAMMATORY AGENTS

Research Abstract

A new method for synthesizing 4amino3methyl1phenyl1H5substituted thieno[2,3c]pyrazole was
reported. The substituted groups at position 5 include carbonitrile, carboxamide, Nphenyl carboxamide,
and benzoyl groups. The newly synthesized compounds and their derivatives were characterized by elemental
analysis and spectroscopy (IR, 1H NMR, and mass spectra). Furthermore, some of these synthesized com
pounds were screened against various pathogenic bacterial and fungal strains. The results demonstrate that
most of the synthesized compounds possess a significant antibacterial activity against grampositive and
gramnegative bacteria. In addition, most of these compounds showed a remarkable antifungal activity. On
the other hand, some of the synthesized compounds possess high antiinflammatory activity, which was dem
onstrated using the carrageenaninduced rat paw edema assay.

Research Authors
Adel M. Kamal ElDean, Remon M. Zaki, Abdullah Y. Abdulrazzaq
Research Department
Research Journal
Russian Journal of Bioorganic Chemistry
Research Pages
PP.112-120
Research Rank
1
Research Vol
Vol.41,No.1
Research Year
2015

A CONVENIENT SYNTHESIS AND BIOLOGICAL ACTIVITY
OF NOVEL THIENO[2,3c]PYRAZOLE COMPOUNDS AS ANTIMICROBIAL
AND ANTIINFLAMMATORY AGENTS

Research Abstract

A new method for synthesizing 4amino3methyl1phenyl1H5substituted thieno[2,3c]pyrazole was
reported. The substituted groups at position 5 include carbonitrile, carboxamide, Nphenyl carboxamide,
and benzoyl groups. The newly synthesized compounds and their derivatives were characterized by elemental
analysis and spectroscopy (IR, 1H NMR, and mass spectra). Furthermore, some of these synthesized com
pounds were screened against various pathogenic bacterial and fungal strains. The results demonstrate that
most of the synthesized compounds possess a significant antibacterial activity against grampositive and
gramnegative bacteria. In addition, most of these compounds showed a remarkable antifungal activity. On
the other hand, some of the synthesized compounds possess high antiinflammatory activity, which was dem
onstrated using the carrageenaninduced rat paw edema assay.

Research Authors
Adel M. Kamal ElDean, Remon M. Zaki, Abdullah Y. Abdulrazzaq
Research Department
Research Journal
Russian Journal of Bioorganic Chemistry
Research Member
Research Pages
PP.112-120
Research Rank
1
Research Vol
Vol.41,No.1
Research Year
2015

Synthesis, Characterization and Corrosion Inhibitive Properties of NewThiazole Based Polyamides Containing Diarylidenecyclohexanone Moiety

Research Abstract

The present work aimed to synthesize a new interesting series of thiazole based polyamides containing
diarylidenecyclohexanone moiety 5a−5f using low temperature solution polycondensation technique. The new polymers were
synthesized by the reaction of thiazole based monomer namely, bis(2-aminothiazol-4-ylbenzylidene)cyclohexanone 3 with
different aliphatic and aromatic diacid chlorides using NMP, and in the presence of anhydrous LiCl as catalyst. Adipoyl,
sebacoyl, oxaloyl, terephthaloyl, isophthaloyl dichlorides and biphenyl dicarbonyl dichloride were used as diacid chlorides.
The structure of the model compound 4 as well as the new polymers was confirmed by correct elemental and spectral
analyses. The thermal properties of those polymers were evaluated by TGA and DTG measurements and correlated to their
structural units, beside X-ray diffraction analysis, solubility and viscometry measurements. The inherent viscosities for the
synthesized polymers were in the range 0.6–1.03 dL/g. On the other hand the corrosion inhibitive properties of monomer 3 as
well as polyamides 5d and 5f as selected examples were carried out on carbon-steel in 0.5 mol/L H2SO4 at 40 °C. The
calculated inhibition efficiency (IE%) for polymer 5d was in the range (82 ± 6)% in all selected concentrations. The best
value of IE% was obtained at 1 mg/L to reach 98.24% for polymer 5d and at 0.5 mg/L to reach 87.75% for polymer 5f.

Research Authors
K.I. Aly and M.A. Hussein
Research Department
Research Journal
Chinese Journal of Polymer Science
Research Member
Research Pages
PP.1-13
Research Rank
1
Research Vol
Vol.33,No.1
Research Year
2015

Synthesis, Characterization and Corrosion Inhibitive Properties of NewThiazole Based Polyamides Containing Diarylidenecyclohexanone Moiety

Research Abstract

The present work aimed to synthesize a new interesting series of thiazole based polyamides containing
diarylidenecyclohexanone moiety 5a−5f using low temperature solution polycondensation technique. The new polymers were
synthesized by the reaction of thiazole based monomer namely, bis(2-aminothiazol-4-ylbenzylidene)cyclohexanone 3 with
different aliphatic and aromatic diacid chlorides using NMP, and in the presence of anhydrous LiCl as catalyst. Adipoyl,
sebacoyl, oxaloyl, terephthaloyl, isophthaloyl dichlorides and biphenyl dicarbonyl dichloride were used as diacid chlorides.
The structure of the model compound 4 as well as the new polymers was confirmed by correct elemental and spectral
analyses. The thermal properties of those polymers were evaluated by TGA and DTG measurements and correlated to their
structural units, beside X-ray diffraction analysis, solubility and viscometry measurements. The inherent viscosities for the
synthesized polymers were in the range 0.6–1.03 dL/g. On the other hand the corrosion inhibitive properties of monomer 3 as
well as polyamides 5d and 5f as selected examples were carried out on carbon-steel in 0.5 mol/L H2SO4 at 40 °C. The
calculated inhibition efficiency (IE%) for polymer 5d was in the range (82 ± 6)% in all selected concentrations. The best
value of IE% was obtained at 1 mg/L to reach 98.24% for polymer 5d and at 0.5 mg/L to reach 87.75% for polymer 5f.

Research Authors
K.I. Aly and M.A. Hussein
Research Department
Research Journal
Chinese Journal of Polymer Science
Research Member
Research Pages
PP.1-13
Research Rank
1
Research Vol
Vol.33,No.1
Research Year
2015

Thermal Induced Unfolding Of Human Serum Albumin Isomers: Assigning Residual Alpha Helices to Domain II.

Research Abstract

In this study we have investigated the heat induced denaturation of HSA byutilizing spectroscopic approaches including fluorescence and circular dichroism. Thermal denaturation of N isomer (domain I-III remains intact), B isomer (loss of helical structure of interdomain contacts) and I state (domain II intact) was found to be co-operative processes while for F isomer domains unfold non-cooperatively. These finding pointed out that during N-F transition, HSA suffers more structural alterationswhich are not localized only to domain III. Loss of secondary structure in the temperature range 20-60 0C without effecting tertiary structure of N isomer of HSA is mainly due to loss in helical extensions connecting domain I to II and domain II to III. All the four thermally denatured states (60-96 0C) of HSA retained approximately 50% residual alpha helical structures. Near-UV CD used as a probe for tertiary structure indicated that heat denatured states lost almost all of the tertiary contacts,thereby forming molten globule like states. Furthermore, our results provide evidence that residual helical structuresare mainly located in domain II.

Research Authors
Ahmad B, Muteeb G, Alam P, Varshney A, Zaidi N, Ishtikhar M, Gamal Badr, Mahmoud MH, Khan RH.
Research Department
Research Journal
International Journal of Biological Macromolecules
Research Member
Research Publisher
Elsever
Research Rank
1
Research Vol
2015
Research Website
http://www.ncbi.nlm.nih.gov/pubmed/25681619
Research Year
2015

ENHHANCEMENT OF LIPOID AND BIOMASS CONTENTS BY MALONATE
INTERFERENCE IN THE METABOLISM OF FIVE GREEN ALGAE

Research Abstract

Optical density, chlorophyll, carotenoids and oil contents were the highest at 10
mM malonate; higher concentrations were inhibitory (with few exceptions). Rates of
respiratory oxygen uptake also decreased at malonate concentrations above 10 mM.
Dry mass was, however, continually increasing by increased malonate
concentrations. Free glycerol contents have not been generally altered by malonate
concentrations, with few exceptions. The above-mentioned observations were
consistent at all of the studied species (local isolates of Chlorococcum humicola,
Scenedesmus dimorphus, Scenedesmus acutiformis and Scenedesmus quadricauda),
except in the dry mass of Chlamydomonas (SAG isolate (Samlung für Algen
kulturen).
The inhibitory action on respiration by malonate concentration above 10 mM was
accompanied by lipoid decrease. Thus, the hypothesis of competitive inhibition of
succinate dehydrogenase (SD) by malonate, with increased acetyl CoA and
subsequently triglycerides, is ruled out at malonate concentration above 10 mM.
Increased oil yield at ≤ 10 mM malonate resulted from increased culture cell density
along with increased oil content per cell. Doubling oil and dry mass contents in one
litre (10 mM) of the studied algae roughly costs 0.23€.

Research Authors
EMAN AL-DABY,MANAL EL-ZOHRI,FATMA ALI FARGHALY AND
R. ABDEL-BASSET
Research Journal
Ass. Univ. Bull. Environ. Res
Research Rank
2
Research Year
2013

ENHHANCEMENT OF LIPOID AND BIOMASS CONTENTS BY MALONATE
INTERFERENCE IN THE METABOLISM OF FIVE GREEN ALGAE

Research Abstract

Optical density, chlorophyll, carotenoids and oil contents were the highest at 10
mM malonate; higher concentrations were inhibitory (with few exceptions). Rates of
respiratory oxygen uptake also decreased at malonate concentrations above 10 mM.
Dry mass was, however, continually increasing by increased malonate
concentrations. Free glycerol contents have not been generally altered by malonate
concentrations, with few exceptions. The above-mentioned observations were
consistent at all of the studied species (local isolates of Chlorococcum humicola,
Scenedesmus dimorphus, Scenedesmus acutiformis and Scenedesmus quadricauda),
except in the dry mass of Chlamydomonas (SAG isolate (Samlung für Algen
kulturen).
The inhibitory action on respiration by malonate concentration above 10 mM was
accompanied by lipoid decrease. Thus, the hypothesis of competitive inhibition of
succinate dehydrogenase (SD) by malonate, with increased acetyl CoA and
subsequently triglycerides, is ruled out at malonate concentration above 10 mM.
Increased oil yield at ≤ 10 mM malonate resulted from increased culture cell density
along with increased oil content per cell. Doubling oil and dry mass contents in one
litre (10 mM) of the studied algae roughly costs 0.23€.

Research Authors
EMAN AL-DABY,MANAL EL-ZOHRI,FATMA ALI FARGHALY AND
R. ABDEL-BASSET
Research Journal
Ass. Univ. Bull. Environ. Res
Research Member
Research Rank
2
Research Year
2013

ENHHANCEMENT OF LIPOID AND BIOMASS CONTENTS BY MALONATE
INTERFERENCE IN THE METABOLISM OF FIVE GREEN ALGAE

Research Abstract

Optical density, chlorophyll, carotenoids and oil contents were the highest at 10
mM malonate; higher concentrations were inhibitory (with few exceptions). Rates of
respiratory oxygen uptake also decreased at malonate concentrations above 10 mM.
Dry mass was, however, continually increasing by increased malonate
concentrations. Free glycerol contents have not been generally altered by malonate
concentrations, with few exceptions. The above-mentioned observations were
consistent at all of the studied species (local isolates of Chlorococcum humicola,
Scenedesmus dimorphus, Scenedesmus acutiformis and Scenedesmus quadricauda),
except in the dry mass of Chlamydomonas (SAG isolate (Samlung für Algen
kulturen).
The inhibitory action on respiration by malonate concentration above 10 mM was
accompanied by lipoid decrease. Thus, the hypothesis of competitive inhibition of
succinate dehydrogenase (SD) by malonate, with increased acetyl CoA and
subsequently triglycerides, is ruled out at malonate concentration above 10 mM.
Increased oil yield at ≤ 10 mM malonate resulted from increased culture cell density
along with increased oil content per cell. Doubling oil and dry mass contents in one
litre (10 mM) of the studied algae roughly costs 0.23€.

Research Authors
EMAN AL-DABY,MANAL EL-ZOHRI,FATMA ALI FARGHALY AND
R. ABDEL-BASSET
Research Journal
Ass. Univ. Bull. Environ. Res
Research Rank
2
Research Year
2013

ENHHANCEMENT OF LIPOID AND BIOMASS CONTENTS BY MALONATE
INTERFERENCE IN THE METABOLISM OF FIVE GREEN ALGAE

Research Abstract

Optical density, chlorophyll, carotenoids and oil contents were the highest at 10
mM malonate; higher concentrations were inhibitory (with few exceptions). Rates of
respiratory oxygen uptake also decreased at malonate concentrations above 10 mM.
Dry mass was, however, continually increasing by increased malonate
concentrations. Free glycerol contents have not been generally altered by malonate
concentrations, with few exceptions. The above-mentioned observations were
consistent at all of the studied species (local isolates of Chlorococcum humicola,
Scenedesmus dimorphus, Scenedesmus acutiformis and Scenedesmus quadricauda),
except in the dry mass of Chlamydomonas (SAG isolate (Samlung für Algen
kulturen).
The inhibitory action on respiration by malonate concentration above 10 mM was
accompanied by lipoid decrease. Thus, the hypothesis of competitive inhibition of
succinate dehydrogenase (SD) by malonate, with increased acetyl CoA and
subsequently triglycerides, is ruled out at malonate concentration above 10 mM.
Increased oil yield at ≤ 10 mM malonate resulted from increased culture cell density
along with increased oil content per cell. Doubling oil and dry mass contents in one
litre (10 mM) of the studied algae roughly costs 0.23€.

Research Authors
EMAN AL-DABY,MANAL EL-ZOHRI,FATMA ALI FARGHALY AND
R. ABDEL-BASSET
Research Journal
Ass. Univ. Bull. Environ. Res
Research Member
Research Rank
2
Research Year
2013
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