Koly Mustafa - Academia.edu (original) (raw)
Papers by Koly Mustafa
To assess the efficacy of formalin killed oil adjuvanated Fowl Cholera vaccine necessary for prof... more To assess the efficacy of formalin killed oil adjuvanated Fowl Cholera vaccine necessary for profitable poultry farming. To study the immunogenicity and the role of humoral immune response of fowl cholera vaccine produced by Livestock and Poultry Vaccine Research and Production Center (LPVRPC), Bangladesh Agricultural University. The vaccine efficacy was determined based on Antibody titre of the sera of chichen and mice, the protective capability against challenge infection, differential Leukocyte count and the ability of antisera to give Passive protection. Both the chicken and mice were immunized with fowl cholera vaccine with a dose of 0.5 ml through I/M route and 100 µl through I/P respectively and same booster dose was given after 4 weeks. The serum antibody titer was monitored at regular intervals by Passive Hemagglutination Test and the serum antibody titer was picked after 2 weeks of both primary and booster vaccination (**p≤0.01) and started to decline after 4 weeks of both...
Scientifica, 2016
Introduction. The aim of our study is to assess the need for postoperative antibiotics following ... more Introduction. The aim of our study is to assess the need for postoperative antibiotics following simple exodontia and determine its role in minimizing patient discomfort and postoperative complications. Material and Methods. All the patients undergoing simple extractions were grouped into two categories: Group 1, patients receiving antibiotics, and Group 2, patients receiving no antibiotics. Patients were recalled on the sixth day to assess postoperative complications. On recall, patients were evaluated for signs of persistent inflammation and signs of dry socket. Presence of persistent inflammation and/or suppuration on the 6th day was considered as wound infection. Results. A total of 146 patients were included in this study. Out of the total sample, 134 (91.8%) presented with no postoperative complications and 12 (8.2%) had postoperative complications, out of which 11 (7.5%) patients presented with dry socket (alveolar osteitis), 5 (3.4%) in the antibiotic group and 6 (4.1%) in the nonantibiotic group. Only 1 patient (0.7%) was reported with infection of the extraction socket in the nonantibiotic group, whereas no case of infection was found in the antibiotic group. Conclusion. Antibiotics are not required after simple extractions in patients who are not medically comprised nor do they have any role in preventing postoperative complications.
International Journal of Dentistry, 2015
Introduction. The aim of this study is to determine the most common endodontically treated tooth ... more Introduction. The aim of this study is to determine the most common endodontically treated tooth and the most common error produced during treatment and to note the association of particular errors with particular teeth. Material and Methods. Periapical radiographs were taken of all the included teeth and were stored and assessed using DIGORA Optime. Teeth in each group were evaluated for presence or absence of procedural errors (i.e., overfill, underfill, ledge formation, perforations, apical transportation, and/or instrument separation) and the most frequent tooth to undergo endodontic treatment was also noted. Results. A total of 1748 root canal treated teeth were assessed, out of which 574 (32.8%) contained a procedural error. Out of these 397 (22.7%) were overfilled, 155 (8.9%) were underfilled, 16 (0.9%) had instrument separation, and 7 (0.4%) had apical transportation. The most frequently treated tooth was right permanent mandibular first molar (11.3%). The least commonly treated teeth were the permanent mandibular third molars (0.1%). Conclusion. Practitioners should show greater care to maintain accuracy of the working length throughout the procedure, as errors in length accounted for the vast majority of errors and special care should be taken when working on molars.
In order to evaluate clinical and bacteriological efficacy of Cefpodoxime Proxetil (CP) in typhoi... more In order to evaluate clinical and bacteriological efficacy of Cefpodoxime Proxetil (CP) in typhoid fever in comparison to cefixime (CF), we assessed 140 children with suspected typhoid fever. Fulfilling inclusion criteria finally 40 culture confirmed typhoid fever were allocated in randomized double blind clinical trial (RCT)to receive therapy with either oral CP (16 mg/kg/day, n = 21) or oral CF
![Research paper thumbnail of Lanthanide(III) nitrobenzenesulfonates andp-toluenesulfonate complexes of lanthanide(III), iron(III), and copper(II) as novel catalysts for the formation of calix[4]resorcinarene](https://attachments.academia-assets.com/45070409/thumbnails/1.jpg)
](Tetrahedron, 2007
Lanthanide(III) salts of p-toluenesulfonic acid [lanthanide(III) tosylates, Ln(TOS) 3 ] and nitro... more Lanthanide(III) salts of p-toluenesulfonic acid [lanthanide(III) tosylates, Ln(TOS) 3 ] and nitrobenzenesulfonic acid [Ln(NBSA) 3 ], and p-toluenesulfonate complexes of iron(III) and copper(II) were prepared, characterized, and examined as catalysts for the synthesis of resorcinol-derived calix[4]resorcinarenes. The reaction of resorcinol with benzaldehyde yields two isomers, the all-cis isomer (rccc) and the cis-trans-trans isomer (rctt) with the relative isomer ratios depending on the reaction conditions. However, in the reaction of resorcinol with octanal only one isomer, the all-cis isomer, is formed in high yields with less than 0.1 mol % of Yb(TOS) 3 . Examination of lanthanide(III) tosylates and lanthanide(III) nitrobenzenesulfonates revealed that ytterbium(III) 4-nitrobenzenesulfonate [ytterbium(III) nosylate, Yb(4-NBSA) 3 ] and ytterbium(III) 2,4-dinitrobenzenesulfonate [Yb(2,4-NBSA) 3 ] are the most active catalysts. The catalysts could be easily recovered and reused several times for resorcinarene formation without loss of efficiency. Surprisingly good results were also obtained with iron(III) and copper(II) p-toluenesulfonates. Besides optimizing the reaction conditions, new insights into the reaction mechanism were also obtained. Ó 2007 Elsevier Ltd. All rights reserved.
Journal of the Chemical Society, Dalton Transactions, 2002
![Research paper thumbnail of Lanthanide(III) nitrobenzenesulfonates and p-toluenesulfonate complexes of lanthanide(III), iron(III), and copper(II) as novel catalysts for the formation of calix[4]resorcinarene](https://attachments.academia-assets.com/45070408/thumbnails/1.jpg)
](Tetrahedron, 2007
Lanthanide(III) salts of p-toluenesulfonic acid [lanthanide(III) tosylates, Ln(TOS) 3 ] and nitro... more Lanthanide(III) salts of p-toluenesulfonic acid [lanthanide(III) tosylates, Ln(TOS) 3 ] and nitrobenzenesulfonic acid [Ln(NBSA) 3 ], and p-toluenesulfonate complexes of iron(III) and copper(II) were prepared, characterized, and examined as catalysts for the synthesis of resorcinol-derived calix[4]resorcinarenes. The reaction of resorcinol with benzaldehyde yields two isomers, the all-cis isomer (rccc) and the cis-trans-trans isomer (rctt) with the relative isomer ratios depending on the reaction conditions. However, in the reaction of resorcinol with octanal only one isomer, the all-cis isomer, is formed in high yields with less than 0.1 mol % of Yb(TOS) 3 . Examination of lanthanide(III) tosylates and lanthanide(III) nitrobenzenesulfonates revealed that ytterbium(III) 4-nitrobenzenesulfonate [ytterbium(III) nosylate, Yb(4-NBSA) 3 ] and ytterbium(III) 2,4-dinitrobenzenesulfonate [Yb(2,4-NBSA) 3 ] are the most active catalysts. The catalysts could be easily recovered and reused several times for resorcinarene formation without loss of efficiency. Surprisingly good results were also obtained with iron(III) and copper(II) p-toluenesulfonates. Besides optimizing the reaction conditions, new insights into the reaction mechanism were also obtained. Ó 2007 Elsevier Ltd. All rights reserved.
Topics in Catalysis, 2008
The multi-step conversion of sucrose to various C 5 -oxygenates and alkanes was achieved by integ... more The multi-step conversion of sucrose to various C 5 -oxygenates and alkanes was achieved by integrating various homogeneous and heterogeneous catalytic systems. We have confirmed that the dehydration of sucrose to levulinic and formic acids is currently limited to about 30-40% in the presence of H 2 SO 4 , HCl, or Nafion NR50 in water. Performing the dehydration in the presence of a P(m-C 6 H 4 SO 3 Na) 3 modified ruthenium catalyst under hydrogen resulted in the in situ conversion of levulinic acid to c-valerolactone (GVL). Levulinic acid can be hydrogenated to GVL quantitatively by using P(m-C 6 H 4 SO 3 Na) 3 modified ruthenium catalyst in water or Ru(acac) 3 /PBu 3 / NH 4 PF 6 catalyst in neat levulinic acid. Formic acid can be used for the transfer hydrogenation of levulinic acid in water in the presence of [(g 6 -C 6 Me 6 )Ru(bpy)(H 2 O)][SO 4 ] resulting in GVL and 1,4-pentanediol. The hydrogenation of levulinic acid or GVL can be performed to yield 1,4pentanediol and/or 2-methyl-tetrahydrofuran (2-Me-THF). The hydrogenolysis of 2-Me-THF in the presence of Pt(acac) 2 in CF 3 SO 3 H resulted in a mixture of alkanes. We have thus demonstrated that the conversion of carbohydrates to various C 5 -oxygenates and even to alkanes can be achieved by selecting the proper catalysts and conditions, which could provide a renewable platform for the chemical industry.
The Journal of Organic Chemistry, 2007
Industrial & Engineering Chemistry Research, 2006
The Friedel-Crafts benzoylation of anisole with benzoic anhydride to yield 4-methoxybenzophenone ... more The Friedel-Crafts benzoylation of anisole with benzoic anhydride to yield 4-methoxybenzophenone has been performed in a range of ionic liquids, using homogeneous metal triflate catalysts. Of these, indium, scandium, and aluminum triflate were chosen to develop a kinetic model. A complex exchange of ligands between the metal salt, the benzoic anhydride, and the ionic liquids results in the formation of a free acid catalyst. This acid is shown to reversibly deactivated by complexation with the product; the equilibrium constant for this has been measured, and a rate equation has been developed and successfully tested.
Green Chemistry, 2008
... Rev. Plant Sci., 2004, 23, 519567 Article ChemPort ; TW Patzek, S.-M. Anti, R. Campos, KW Ha... more ... Rev. Plant Sci., 2004, 23, 519567 Article ChemPort ; TW Patzek, S.-M. Anti, R. Campos, KW Ha, J. Lee, B. Li, J. Padnick and S.-A. Yee, Environ. Dev. ... The RON and MON was 95.5 and 89.0, respectively . 32, H. Mehdi, V. Fábos, R. Tuba, A. Bodor, LT Mika and IT Horváth, Top. ...
Energy & Environmental Science, 2009
The conversion of biomass to carbon based chemicals is a rapidly growing field in sustainable dev... more The conversion of biomass to carbon based chemicals is a rapidly growing field in sustainable development. Since monomers, oligomers, and polymers of carbohydrates are key components of biomass, various conversion schemes involve step-by-step removal of oxygen atoms ...
Chemistry - A European Journal, 2010
a] of the cobalt-containing ionic liquids.
To assess the efficacy of formalin killed oil adjuvanated Fowl Cholera vaccine necessary for prof... more To assess the efficacy of formalin killed oil adjuvanated Fowl Cholera vaccine necessary for profitable poultry farming. To study the immunogenicity and the role of humoral immune response of fowl cholera vaccine produced by Livestock and Poultry Vaccine Research and Production Center (LPVRPC), Bangladesh Agricultural University. The vaccine efficacy was determined based on Antibody titre of the sera of chichen and mice, the protective capability against challenge infection, differential Leukocyte count and the ability of antisera to give Passive protection. Both the chicken and mice were immunized with fowl cholera vaccine with a dose of 0.5 ml through I/M route and 100 µl through I/P respectively and same booster dose was given after 4 weeks. The serum antibody titer was monitored at regular intervals by Passive Hemagglutination Test and the serum antibody titer was picked after 2 weeks of both primary and booster vaccination (**p≤0.01) and started to decline after 4 weeks of both...
Scientifica, 2016
Introduction. The aim of our study is to assess the need for postoperative antibiotics following ... more Introduction. The aim of our study is to assess the need for postoperative antibiotics following simple exodontia and determine its role in minimizing patient discomfort and postoperative complications. Material and Methods. All the patients undergoing simple extractions were grouped into two categories: Group 1, patients receiving antibiotics, and Group 2, patients receiving no antibiotics. Patients were recalled on the sixth day to assess postoperative complications. On recall, patients were evaluated for signs of persistent inflammation and signs of dry socket. Presence of persistent inflammation and/or suppuration on the 6th day was considered as wound infection. Results. A total of 146 patients were included in this study. Out of the total sample, 134 (91.8%) presented with no postoperative complications and 12 (8.2%) had postoperative complications, out of which 11 (7.5%) patients presented with dry socket (alveolar osteitis), 5 (3.4%) in the antibiotic group and 6 (4.1%) in the nonantibiotic group. Only 1 patient (0.7%) was reported with infection of the extraction socket in the nonantibiotic group, whereas no case of infection was found in the antibiotic group. Conclusion. Antibiotics are not required after simple extractions in patients who are not medically comprised nor do they have any role in preventing postoperative complications.
International Journal of Dentistry, 2015
Introduction. The aim of this study is to determine the most common endodontically treated tooth ... more Introduction. The aim of this study is to determine the most common endodontically treated tooth and the most common error produced during treatment and to note the association of particular errors with particular teeth. Material and Methods. Periapical radiographs were taken of all the included teeth and were stored and assessed using DIGORA Optime. Teeth in each group were evaluated for presence or absence of procedural errors (i.e., overfill, underfill, ledge formation, perforations, apical transportation, and/or instrument separation) and the most frequent tooth to undergo endodontic treatment was also noted. Results. A total of 1748 root canal treated teeth were assessed, out of which 574 (32.8%) contained a procedural error. Out of these 397 (22.7%) were overfilled, 155 (8.9%) were underfilled, 16 (0.9%) had instrument separation, and 7 (0.4%) had apical transportation. The most frequently treated tooth was right permanent mandibular first molar (11.3%). The least commonly treated teeth were the permanent mandibular third molars (0.1%). Conclusion. Practitioners should show greater care to maintain accuracy of the working length throughout the procedure, as errors in length accounted for the vast majority of errors and special care should be taken when working on molars.
In order to evaluate clinical and bacteriological efficacy of Cefpodoxime Proxetil (CP) in typhoi... more In order to evaluate clinical and bacteriological efficacy of Cefpodoxime Proxetil (CP) in typhoid fever in comparison to cefixime (CF), we assessed 140 children with suspected typhoid fever. Fulfilling inclusion criteria finally 40 culture confirmed typhoid fever were allocated in randomized double blind clinical trial (RCT)to receive therapy with either oral CP (16 mg/kg/day, n = 21) or oral CF
Tetrahedron, 2007
Lanthanide(III) salts of p-toluenesulfonic acid [lanthanide(III) tosylates, Ln(TOS) 3 ] and nitro... more Lanthanide(III) salts of p-toluenesulfonic acid [lanthanide(III) tosylates, Ln(TOS) 3 ] and nitrobenzenesulfonic acid [Ln(NBSA) 3 ], and p-toluenesulfonate complexes of iron(III) and copper(II) were prepared, characterized, and examined as catalysts for the synthesis of resorcinol-derived calix[4]resorcinarenes. The reaction of resorcinol with benzaldehyde yields two isomers, the all-cis isomer (rccc) and the cis-trans-trans isomer (rctt) with the relative isomer ratios depending on the reaction conditions. However, in the reaction of resorcinol with octanal only one isomer, the all-cis isomer, is formed in high yields with less than 0.1 mol % of Yb(TOS) 3 . Examination of lanthanide(III) tosylates and lanthanide(III) nitrobenzenesulfonates revealed that ytterbium(III) 4-nitrobenzenesulfonate [ytterbium(III) nosylate, Yb(4-NBSA) 3 ] and ytterbium(III) 2,4-dinitrobenzenesulfonate [Yb(2,4-NBSA) 3 ] are the most active catalysts. The catalysts could be easily recovered and reused several times for resorcinarene formation without loss of efficiency. Surprisingly good results were also obtained with iron(III) and copper(II) p-toluenesulfonates. Besides optimizing the reaction conditions, new insights into the reaction mechanism were also obtained. Ó 2007 Elsevier Ltd. All rights reserved.
Journal of the Chemical Society, Dalton Transactions, 2002
Tetrahedron, 2007
Lanthanide(III) salts of p-toluenesulfonic acid [lanthanide(III) tosylates, Ln(TOS) 3 ] and nitro... more Lanthanide(III) salts of p-toluenesulfonic acid [lanthanide(III) tosylates, Ln(TOS) 3 ] and nitrobenzenesulfonic acid [Ln(NBSA) 3 ], and p-toluenesulfonate complexes of iron(III) and copper(II) were prepared, characterized, and examined as catalysts for the synthesis of resorcinol-derived calix[4]resorcinarenes. The reaction of resorcinol with benzaldehyde yields two isomers, the all-cis isomer (rccc) and the cis-trans-trans isomer (rctt) with the relative isomer ratios depending on the reaction conditions. However, in the reaction of resorcinol with octanal only one isomer, the all-cis isomer, is formed in high yields with less than 0.1 mol % of Yb(TOS) 3 . Examination of lanthanide(III) tosylates and lanthanide(III) nitrobenzenesulfonates revealed that ytterbium(III) 4-nitrobenzenesulfonate [ytterbium(III) nosylate, Yb(4-NBSA) 3 ] and ytterbium(III) 2,4-dinitrobenzenesulfonate [Yb(2,4-NBSA) 3 ] are the most active catalysts. The catalysts could be easily recovered and reused several times for resorcinarene formation without loss of efficiency. Surprisingly good results were also obtained with iron(III) and copper(II) p-toluenesulfonates. Besides optimizing the reaction conditions, new insights into the reaction mechanism were also obtained. Ó 2007 Elsevier Ltd. All rights reserved.
Topics in Catalysis, 2008
The multi-step conversion of sucrose to various C 5 -oxygenates and alkanes was achieved by integ... more The multi-step conversion of sucrose to various C 5 -oxygenates and alkanes was achieved by integrating various homogeneous and heterogeneous catalytic systems. We have confirmed that the dehydration of sucrose to levulinic and formic acids is currently limited to about 30-40% in the presence of H 2 SO 4 , HCl, or Nafion NR50 in water. Performing the dehydration in the presence of a P(m-C 6 H 4 SO 3 Na) 3 modified ruthenium catalyst under hydrogen resulted in the in situ conversion of levulinic acid to c-valerolactone (GVL). Levulinic acid can be hydrogenated to GVL quantitatively by using P(m-C 6 H 4 SO 3 Na) 3 modified ruthenium catalyst in water or Ru(acac) 3 /PBu 3 / NH 4 PF 6 catalyst in neat levulinic acid. Formic acid can be used for the transfer hydrogenation of levulinic acid in water in the presence of [(g 6 -C 6 Me 6 )Ru(bpy)(H 2 O)][SO 4 ] resulting in GVL and 1,4-pentanediol. The hydrogenation of levulinic acid or GVL can be performed to yield 1,4pentanediol and/or 2-methyl-tetrahydrofuran (2-Me-THF). The hydrogenolysis of 2-Me-THF in the presence of Pt(acac) 2 in CF 3 SO 3 H resulted in a mixture of alkanes. We have thus demonstrated that the conversion of carbohydrates to various C 5 -oxygenates and even to alkanes can be achieved by selecting the proper catalysts and conditions, which could provide a renewable platform for the chemical industry.
The Journal of Organic Chemistry, 2007
Industrial & Engineering Chemistry Research, 2006
The Friedel-Crafts benzoylation of anisole with benzoic anhydride to yield 4-methoxybenzophenone ... more The Friedel-Crafts benzoylation of anisole with benzoic anhydride to yield 4-methoxybenzophenone has been performed in a range of ionic liquids, using homogeneous metal triflate catalysts. Of these, indium, scandium, and aluminum triflate were chosen to develop a kinetic model. A complex exchange of ligands between the metal salt, the benzoic anhydride, and the ionic liquids results in the formation of a free acid catalyst. This acid is shown to reversibly deactivated by complexation with the product; the equilibrium constant for this has been measured, and a rate equation has been developed and successfully tested.
Green Chemistry, 2008
... Rev. Plant Sci., 2004, 23, 519567 Article ChemPort ; TW Patzek, S.-M. Anti, R. Campos, KW Ha... more ... Rev. Plant Sci., 2004, 23, 519567 Article ChemPort ; TW Patzek, S.-M. Anti, R. Campos, KW Ha, J. Lee, B. Li, J. Padnick and S.-A. Yee, Environ. Dev. ... The RON and MON was 95.5 and 89.0, respectively . 32, H. Mehdi, V. Fábos, R. Tuba, A. Bodor, LT Mika and IT Horváth, Top. ...
Energy & Environmental Science, 2009
The conversion of biomass to carbon based chemicals is a rapidly growing field in sustainable dev... more The conversion of biomass to carbon based chemicals is a rapidly growing field in sustainable development. Since monomers, oligomers, and polymers of carbohydrates are key components of biomass, various conversion schemes involve step-by-step removal of oxygen atoms ...
Chemistry - A European Journal, 2010
a] of the cobalt-containing ionic liquids.