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Papers by Fatma Kandemirli

Research paper thumbnail of Solvatochromism, optical and electronic properties of thiosemicarbazone derivatives in solution phase

Optical and quantum electronics, Feb 12, 2024

Research paper thumbnail of Anodic and Cathodic preparation of MnO2/Co2O3 Composite Electrode Anodes for Electro-Oxidation of Phenol

Iraqi journal of chemical and petroleum engineering, Dec 29, 2023

Research paper thumbnail of Effect of the Al Doping on the Sensing Behaviour of Carbon Nanotubes Toward Carbazochrome: a Computational Study

Fen ve mühendislik bilimleri dergisi, Dec 28, 2022

Research paper thumbnail of A microcontroller based microfluidic biochip for calcium percentage detection in blood

Indonesian Journal of Electrical Engineering and Computer Science, Apr 1, 2022

Research paper thumbnail of Histological Image Segmentation With Fuzzy Clustering Method

European Journal of Science and Technology, 2021

Research paper thumbnail of An Overview on Lambda, Epsilon, Kappa, Iota and Zeta Variants of Covid-19 and its Probability to Merge with Delta & Delta Plus, why it is a Concern

Biointerface Research in Applied Chemistry, 2021

COVID-19 is caused by the virus SARS-CoV-2 that belongs to the Corona groups. The subgroups of th... more COVID-19 is caused by the virus SARS-CoV-2 that belongs to the Corona groups. The subgroups of the coronavirus families are α, β, γ, and δ coronavirus. On June 15, 2021, the string λ of SARS-CoV-2 was evaluated as a variant of interest via the World Health Organization. This string has a high prevalence in some parts of South American countries, but it occurred only occasionally in Brazil. This study confirms that mutations in the λ -spike protein can be destroyed the neutralizing antibodies and increase infectivity. Coronaviruses such as SARS-CoV-2 have an evolutionary superpower called “recombination” which permits the mixing of their genomes into novel combinations. Unlike regular mutation, which precedes slowly one change at a time, recombination can produce whole changes in a coronavirus genome. Although right now, δ-variant is a concern, a mixing of λ with other variants such as δ-variant is much more of a concern compared to alone variants. There is another item: the recombin...

Research paper thumbnail of Quantitative Structure-activity Relationship

Quantitative Structure-activity Relationship, 2017

Research paper thumbnail of Synthesis, characterization, quantum chemical calculations and evaluation of antioxidant properties of 1,3,4-thiadiazole derivatives including 2- and 3-methoxy cinnamic acids

Journal of Molecular Structure, 2017

Research paper thumbnail of Structure−Activity Relationships of the Quinolone Antibacterials against Mycobacteria:  Effect of Structural Changes at N-1 and C-7

Journal of Medicinal Chemistry, 1996

The re-emergence of tuberculosis infections which are resistant to conventional drug therapy has ... more The re-emergence of tuberculosis infections which are resistant to conventional drug therapy has demonstrated the need for alternative chemotherapy against Mycobacterium tuberculosis. As part of a study to optimize the quinolone antibacterials against M. ...

Research paper thumbnail of Synthesis and Characterization of Poly (3-hexylthiophene) and Used as Modified Electrode for Determination of Antidepressants in Pharmaceutical Formulations and Urine Samples

Journal of The Electrochemical Society, 2013

The influences of the amounts of catalyst Ni(dppp)Cl2and the additive LiCl on the relative molecu... more The influences of the amounts of catalyst Ni(dppp)Cl2and the additive LiCl on the relative molecular weight(Mr)and polydispersity of the P3HT were investigated when KCTP(chain growth Kumada catalyst-transfer polycondensation)method was used to synthesize head-tail poly(3-hexylthiophene)(HT-P3HT).The structure and relative molecular weight of P3HT were characterized by 1 H-NMR and GPC.The data of 1 H-NMR indicated that the polymers exhibited high regularity and the data of GPC suggested that P3HT had higher relative molecular weight and narrower polydispersity with LiCl than that without LiCl.Mr and PDI of the P3HT were not in linear relationship with the molar ratio of the monomer to the catalyst,and the regularity was increased.

Research paper thumbnail of Room‐Temperature Columnar Liquid‐Crystalline Perylene Imido‐Diesters by a Homogeneous One‐Pot Imidification–Esterification of Perylene‐3,4,9,10‐tetracarboxylic Dianhydride

European Journal of Organic Chemistry, 2010

The reaction of PTCDA (perylene‐3,4,9,10‐tetracarboxylic dianhydride) with an alcohol, a bromoalk... more The reaction of PTCDA (perylene‐3,4,9,10‐tetracarboxylic dianhydride) with an alcohol, a bromoalkane, and an alkylamine in the presence of DBU in DMF yields imido‐diester‐substituted perylenes. The reaction is limited to polar alcohols such as propanol, but longer alkyl chains are efficiently introduced in a second step by alkyl group exchange by using selective acidic ester hydrolysis that leaves the imide group intact. This amine‐efficient approach to imido‐diesters is used to obtain acceptor‐type self‐assembling dyes that form a hexagonal columnar liquid crystalline phase at room temperature.

Research paper thumbnail of Synthesis, Spectral and Thermal Characterization of Bis(pyridine-3- carboxy-2-thiolato-S)mercury(II). Crystal Structure of Dibromobis(3- metoxycarbonylpyridine-2-thiolato-S)mercury(II)

Croatica Chemica Acta, 2012

Research paper thumbnail of Theoretical Study and Comparasion of Bent's Rule with Hardness and Polarizibility for SF4, SF4O, PCl4F, PCl3F2, PCl2F3, PCl2F4 Molecules

Phosphorus Sulfur and Silicon and The Related Elements, Jul 4, 2008

Electronic parameters such as HOMO-LUMO energies, Mulliken charges, dipole moments for different ... more Electronic parameters such as HOMO-LUMO energies, Mulliken charges, dipole moments for different isomers of SF4, SF4O, PCl4F, PCl3F2, PCl2F3, PCl2F4 molecules have been carried out at the MP2 level of theory using 6-31G(d), 6-311G(d,p) basis sets by applying Gaussian 03 Revision B-04. Maximum hardness and minimum polarizability have been calculated to see the consistency with the Bent rule. According to

Research paper thumbnail of Theoretical study of gallium nitride nanocage as a carrier for Cisplatin anticancer drug

Zenodo (CERN European Organization for Nuclear Research), Dec 30, 2021

Research paper thumbnail of LabVIEW BASED TEMPERATURE CONTROL SYSTEM FOR NEONATAL INCUBATOR

Research paper thumbnail of 4-NAPHTHYL-3-THIOSEMICARBAZIDE as Corrosion Inhibitor for Copper in Sea Water (3.5% Soduim Chloride)

Research paper thumbnail of A new approach to develop biometric fingerprint using human right thumb fingernail

Indonesian Journal of Electrical Engineering and Computer Science

In this article, we analyzed the structure of human nails to develop a modern biometric authentic... more In this article, we analyzed the structure of human nails to develop a modern biometric authentication system based on the nail bed and finger lunula. The results of the studies on the collected images proved that each fingernail has distinctive characteristics in terms of the length and width of the nail and the lunula, even identical twins. We focused on the fingernail of the right thumb because of its large size and the accuracy and clarity of the nail. The mediation of the indicative points on the nail bed and on the lunula was used to form the pentagonal structure and use it as a region of interest. Then an ensemble independent component analysis, principal component analysis, haar wavelet, and scale invariant feature transformation, were used. Later we classified these algorithms using support vector machine and Naive Bayes techniques, the performance of each algorithm was analyzed by feature extraction with two classifiers. This study was conducted on 100 participants and sho...

Research paper thumbnail of Design of an orthopedic smart splint using nickel-titanium shape memory alloy

Indonesian Journal of Electrical Engineering and Computer Science

People with broken bones suffer from symptoms of muscular atrophy as a result of a lack of moveme... more People with broken bones suffer from symptoms of muscular atrophy as a result of a lack of movement, so it was necessary to find effective solutions due to the relative pain they cause and the difficulty of movement after healing. In this paper, we proposed a smart splint made of nickel-titanium shape memory alloys (SMA) wires. These alloys have unique properties compared to other materials, the most important of which is maintaining the original shape during manufacturing at a certain temperature. Temperature, pressure, as well as humidity, were analyzed and monitored while the patient wore the splint to reach the best possible results by using a microcontroller. The results showed that there was a significant improvement for the muscles in a short time when using the proposed splint, as the percentage of qualified muscle recovery increased by more than 70% when using the usual splint. The wires used had an effective role in rehabilitating these muscles by performing a permanent lo...

Research paper thumbnail of Corrosion behaviour of new oxo-pyrimidine derivatives on mild steel in acidic media: Experimental, surface characterization, theoretical, and Monte Carlo studies

Applied Surface Science Advances, 2022

Research paper thumbnail of Antibacterial Activities of Isatin-3-Thiosemicarbazone Derivatives and Their Metal Complexes against Different Types of Bacteria

Isatin-3-thiosemicarbazone derivatives and their metal complexes (Zn & Ni) were evaluated in vitr... more Isatin-3-thiosemicarbazone derivatives and their metal complexes (Zn & Ni) were evaluated in vitro for their antibacterial activities against selected five bacterial strains, viz. gram-positive (Staphylococcus aureus ATCC 25923, Staphylococcus huminis) and gram negative (Klebsiella pneumoniae, Proteus vulgaris). It was observed that metal complexes had an enhanced activity compared to the ligand against some types of tested bacteria. Binding of the all molecules to DNA is through minor groove. KeywordsIsatin-3-Thiosemicarbazone, Antibacterial Activities, Ligand and Metal Complexes of Thiosemicarbazone

Research paper thumbnail of Solvatochromism, optical and electronic properties of thiosemicarbazone derivatives in solution phase

Optical and quantum electronics, Feb 12, 2024

Research paper thumbnail of Anodic and Cathodic preparation of MnO2/Co2O3 Composite Electrode Anodes for Electro-Oxidation of Phenol

Iraqi journal of chemical and petroleum engineering, Dec 29, 2023

Research paper thumbnail of Effect of the Al Doping on the Sensing Behaviour of Carbon Nanotubes Toward Carbazochrome: a Computational Study

Fen ve mühendislik bilimleri dergisi, Dec 28, 2022

Research paper thumbnail of A microcontroller based microfluidic biochip for calcium percentage detection in blood

Indonesian Journal of Electrical Engineering and Computer Science, Apr 1, 2022

Research paper thumbnail of Histological Image Segmentation With Fuzzy Clustering Method

European Journal of Science and Technology, 2021

Research paper thumbnail of An Overview on Lambda, Epsilon, Kappa, Iota and Zeta Variants of Covid-19 and its Probability to Merge with Delta & Delta Plus, why it is a Concern

Biointerface Research in Applied Chemistry, 2021

COVID-19 is caused by the virus SARS-CoV-2 that belongs to the Corona groups. The subgroups of th... more COVID-19 is caused by the virus SARS-CoV-2 that belongs to the Corona groups. The subgroups of the coronavirus families are α, β, γ, and δ coronavirus. On June 15, 2021, the string λ of SARS-CoV-2 was evaluated as a variant of interest via the World Health Organization. This string has a high prevalence in some parts of South American countries, but it occurred only occasionally in Brazil. This study confirms that mutations in the λ -spike protein can be destroyed the neutralizing antibodies and increase infectivity. Coronaviruses such as SARS-CoV-2 have an evolutionary superpower called “recombination” which permits the mixing of their genomes into novel combinations. Unlike regular mutation, which precedes slowly one change at a time, recombination can produce whole changes in a coronavirus genome. Although right now, δ-variant is a concern, a mixing of λ with other variants such as δ-variant is much more of a concern compared to alone variants. There is another item: the recombin...

Research paper thumbnail of Quantitative Structure-activity Relationship

Quantitative Structure-activity Relationship, 2017

Research paper thumbnail of Synthesis, characterization, quantum chemical calculations and evaluation of antioxidant properties of 1,3,4-thiadiazole derivatives including 2- and 3-methoxy cinnamic acids

Journal of Molecular Structure, 2017

Research paper thumbnail of Structure−Activity Relationships of the Quinolone Antibacterials against Mycobacteria:  Effect of Structural Changes at N-1 and C-7

Journal of Medicinal Chemistry, 1996

The re-emergence of tuberculosis infections which are resistant to conventional drug therapy has ... more The re-emergence of tuberculosis infections which are resistant to conventional drug therapy has demonstrated the need for alternative chemotherapy against Mycobacterium tuberculosis. As part of a study to optimize the quinolone antibacterials against M. ...

Research paper thumbnail of Synthesis and Characterization of Poly (3-hexylthiophene) and Used as Modified Electrode for Determination of Antidepressants in Pharmaceutical Formulations and Urine Samples

Journal of The Electrochemical Society, 2013

The influences of the amounts of catalyst Ni(dppp)Cl2and the additive LiCl on the relative molecu... more The influences of the amounts of catalyst Ni(dppp)Cl2and the additive LiCl on the relative molecular weight(Mr)and polydispersity of the P3HT were investigated when KCTP(chain growth Kumada catalyst-transfer polycondensation)method was used to synthesize head-tail poly(3-hexylthiophene)(HT-P3HT).The structure and relative molecular weight of P3HT were characterized by 1 H-NMR and GPC.The data of 1 H-NMR indicated that the polymers exhibited high regularity and the data of GPC suggested that P3HT had higher relative molecular weight and narrower polydispersity with LiCl than that without LiCl.Mr and PDI of the P3HT were not in linear relationship with the molar ratio of the monomer to the catalyst,and the regularity was increased.

Research paper thumbnail of Room‐Temperature Columnar Liquid‐Crystalline Perylene Imido‐Diesters by a Homogeneous One‐Pot Imidification–Esterification of Perylene‐3,4,9,10‐tetracarboxylic Dianhydride

European Journal of Organic Chemistry, 2010

The reaction of PTCDA (perylene‐3,4,9,10‐tetracarboxylic dianhydride) with an alcohol, a bromoalk... more The reaction of PTCDA (perylene‐3,4,9,10‐tetracarboxylic dianhydride) with an alcohol, a bromoalkane, and an alkylamine in the presence of DBU in DMF yields imido‐diester‐substituted perylenes. The reaction is limited to polar alcohols such as propanol, but longer alkyl chains are efficiently introduced in a second step by alkyl group exchange by using selective acidic ester hydrolysis that leaves the imide group intact. This amine‐efficient approach to imido‐diesters is used to obtain acceptor‐type self‐assembling dyes that form a hexagonal columnar liquid crystalline phase at room temperature.

Research paper thumbnail of Synthesis, Spectral and Thermal Characterization of Bis(pyridine-3- carboxy-2-thiolato-S)mercury(II). Crystal Structure of Dibromobis(3- metoxycarbonylpyridine-2-thiolato-S)mercury(II)

Croatica Chemica Acta, 2012

Research paper thumbnail of Theoretical Study and Comparasion of Bent's Rule with Hardness and Polarizibility for SF4, SF4O, PCl4F, PCl3F2, PCl2F3, PCl2F4 Molecules

Phosphorus Sulfur and Silicon and The Related Elements, Jul 4, 2008

Electronic parameters such as HOMO-LUMO energies, Mulliken charges, dipole moments for different ... more Electronic parameters such as HOMO-LUMO energies, Mulliken charges, dipole moments for different isomers of SF4, SF4O, PCl4F, PCl3F2, PCl2F3, PCl2F4 molecules have been carried out at the MP2 level of theory using 6-31G(d), 6-311G(d,p) basis sets by applying Gaussian 03 Revision B-04. Maximum hardness and minimum polarizability have been calculated to see the consistency with the Bent rule. According to

Research paper thumbnail of Theoretical study of gallium nitride nanocage as a carrier for Cisplatin anticancer drug

Zenodo (CERN European Organization for Nuclear Research), Dec 30, 2021

Research paper thumbnail of LabVIEW BASED TEMPERATURE CONTROL SYSTEM FOR NEONATAL INCUBATOR

Research paper thumbnail of 4-NAPHTHYL-3-THIOSEMICARBAZIDE as Corrosion Inhibitor for Copper in Sea Water (3.5% Soduim Chloride)

Research paper thumbnail of A new approach to develop biometric fingerprint using human right thumb fingernail

Indonesian Journal of Electrical Engineering and Computer Science

In this article, we analyzed the structure of human nails to develop a modern biometric authentic... more In this article, we analyzed the structure of human nails to develop a modern biometric authentication system based on the nail bed and finger lunula. The results of the studies on the collected images proved that each fingernail has distinctive characteristics in terms of the length and width of the nail and the lunula, even identical twins. We focused on the fingernail of the right thumb because of its large size and the accuracy and clarity of the nail. The mediation of the indicative points on the nail bed and on the lunula was used to form the pentagonal structure and use it as a region of interest. Then an ensemble independent component analysis, principal component analysis, haar wavelet, and scale invariant feature transformation, were used. Later we classified these algorithms using support vector machine and Naive Bayes techniques, the performance of each algorithm was analyzed by feature extraction with two classifiers. This study was conducted on 100 participants and sho...

Research paper thumbnail of Design of an orthopedic smart splint using nickel-titanium shape memory alloy

Indonesian Journal of Electrical Engineering and Computer Science

People with broken bones suffer from symptoms of muscular atrophy as a result of a lack of moveme... more People with broken bones suffer from symptoms of muscular atrophy as a result of a lack of movement, so it was necessary to find effective solutions due to the relative pain they cause and the difficulty of movement after healing. In this paper, we proposed a smart splint made of nickel-titanium shape memory alloys (SMA) wires. These alloys have unique properties compared to other materials, the most important of which is maintaining the original shape during manufacturing at a certain temperature. Temperature, pressure, as well as humidity, were analyzed and monitored while the patient wore the splint to reach the best possible results by using a microcontroller. The results showed that there was a significant improvement for the muscles in a short time when using the proposed splint, as the percentage of qualified muscle recovery increased by more than 70% when using the usual splint. The wires used had an effective role in rehabilitating these muscles by performing a permanent lo...

Research paper thumbnail of Corrosion behaviour of new oxo-pyrimidine derivatives on mild steel in acidic media: Experimental, surface characterization, theoretical, and Monte Carlo studies

Applied Surface Science Advances, 2022

Research paper thumbnail of Antibacterial Activities of Isatin-3-Thiosemicarbazone Derivatives and Their Metal Complexes against Different Types of Bacteria

Isatin-3-thiosemicarbazone derivatives and their metal complexes (Zn & Ni) were evaluated in vitr... more Isatin-3-thiosemicarbazone derivatives and their metal complexes (Zn & Ni) were evaluated in vitro for their antibacterial activities against selected five bacterial strains, viz. gram-positive (Staphylococcus aureus ATCC 25923, Staphylococcus huminis) and gram negative (Klebsiella pneumoniae, Proteus vulgaris). It was observed that metal complexes had an enhanced activity compared to the ligand against some types of tested bacteria. Binding of the all molecules to DNA is through minor groove. KeywordsIsatin-3-Thiosemicarbazone, Antibacterial Activities, Ligand and Metal Complexes of Thiosemicarbazone