Korkmaz Özkan, Filiz

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https://hdl.handle.net/20.500.14411/6821
Name Variants
Korkmaz Ozkan,Filiz
K.,Filiz
F.,Korkmaz Ozkan
Filiz, Korkmaz Özkan
Korkmaz Ozkan,F.
K.Ö.Filiz
Korkmaz Özkan,F.
K. O. Filiz
Korkmaz F.
F.,Korkmaz Özkan
F., Korkmaz Ozkan
Filiz, Korkmaz Ozkan
Filiz Korkmaz Özkan
F., Korkmaz Özkan
Korkmaz Ozkan, Filiz
Korkmaz Özkan, Filiz
K. Ö. Filiz
K., Filiz
Özkan, Filiz Korkmaz
Korkmaz, Filiz
Job Title
Profesör Doktor
Email Address
filiz.korkmaz@atilim.edu.tr
Main Affiliation
Physics Group
Status
Website
https
ORCID ID
0000-0003-3512-3521
Scopus Author ID
8664101000
Turkish CoHE Profile ID
Google Scholar ID
4NU4lXwAAAAJ
WoS Researcher ID
2752134

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14

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17

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5

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16

PEACE, JUSTICE AND STRONG INSTITUTIONS
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8

DECENT WORK AND ECONOMIC GROWTH
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4

QUALITY EDUCATION
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6

CLEAN WATER AND SANITATION
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3

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7

AFFORDABLE AND CLEAN ENERGY
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10

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11

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9

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3

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12

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13

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15

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2

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Documents

24

Citations

665

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9

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Scholarly Output

27

Articles

22

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6/0

Supervised MSc Theses

4

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0

WoS Citation Count

597

Scopus Citation Count

618

WoS h-index

9

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8

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0

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0

WoS Citations per Publication

22.11

Scopus Citations per Publication

22.89

Open Access Source

9

Supervised Theses

4

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JournalCount
Scientific Reports4
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy2
Physica B: Condensed Matter2
Archives of Biochemistry and Biophysics2
Journal of Biomolecular Structure and Dynamics1
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Scholarly Output Search Results

Now showing 1 - 4 of 4
  • Thumbnail Image
    Article
    Citation - WoS: 32
    Citation - Scopus: 32
    Urine Analysis Using Ftir Spectroscopy: a Study on Healthy Adults and Children
    (Wiley-v C H verlag Gmbh, 2021) Sarigul, Neslihan; Kurultak, Ilhan; Gokceoglu, Arife Uslu; Korkmaz, Filiz
    Urine spectra from 108 healthy volunteers are studied by attenuated total refraction-Fourier transform infrared (ATR-FTIR) spectroscopy. The spectral features are correlated with observable urine components. The variation of spectra within a healthy population is quantified and a library of reference spectra is constructed. Using the band assignments, these spectra are compared with both age-wise and gender-wise. Children show the least intensity variations compared to both adult groups. Young adults show the highest variation, particularly in the 1650 to 1400 cm(-1) and 1200 to 900 cm(-1) regions. These results indicate the importance of the size of the control group in comparative studies utilizing FTIR. Age-wise comparisons reveal that phosphate and sulfate excretion decreases with age, and that the variance of phosphate among individuals is higher with adults. As for gender-wise comparisons, females show a slightly higher citrate content at 1390 cm(-1) regardless of the age and they show a higher variance in the 1200 to 1000 cm(-1) region when compared to men.
  • Thumbnail Image
    Article
    Citation - WoS: 96
    Citation - Scopus: 100
    Effect of Progesterone on Dppc Membrane: Evidence for Lateral Phase Separation and Inverse Action in Lipid Dynamics
    (Elsevier Science inc, 2005) Korkmaz, F; Severcan, F
    Interactions of progesterone with zwitterionic dipalmitoyl phosphatidylcholine (DPPC) triultilamellar liposomes were investigated as a function of temperature and progesterone concentration by using three non-invasive techniques namely Fourier transform infrared spectroscopy, turbidity at 440 nm, and differential scanning calorimetry. The results reveal that progesterone changes the physical properties of DPPC bilayers by decreasing the main phase-transition temperature, abolishing the pre-transition, broadening the phase-transition profile, disordering the system both in gel and liquid crystalline phase, increasing the dynamics at low concentrations whereas stabilizing the membrane at high concentrations, and inducing phase separation. Progesterone does not change the hydration of the C=O groups, while it strengthens the hydrogen bonding between the PO (2) over bar groups of lipids and the water molecules around. (c) 2005 Elsevier Inc. All rights reserved.
  • Thumbnail Image
    Article
    Citation - WoS: 5
    Citation - Scopus: 5
    Concentration Dependent Different Action of Progesterone on the Order, Dynamics and Hydration States of the Head Group of Dipalmitoyl-Phosphatidylcholine Membrane
    (Hindawi Ltd, 2005) Korkmaz, F; Kirbiyik, H; Severcan, F
    Interactions of progesterone with zwitterionic dipalmitoyl phosphatidylcholine (DPPC) multilamellar liposomes (MLVs) were investigated as a function of progesterone concentration at selected temperatures monitoring both the gel and liquid crystalline phase, by using Fourier Transform Infrared spectroscopy (FTIR). It has been show that the effect of progesterone on membrane dynamics is dependent on progesterone concentration. At 1 mol%, which is close to physiological level, progesterone behaves differently. At this concentration the decrease in dynamics is more noticeable. Additionally a dramatic decrease in the strength of hydrogen bonding in the interfacial region of the bilayer is also observed. When concentration increases up to 12 mol% opposite behaviour is observed at all interactions. Above 12 mol%, progesterone-DPPC interactions shows almost linear plot.
  • Thumbnail Image
    Editorial
    Citation - WoS: 1
    Citation - Scopus: 1
    Commentary on "spectral Characterization of the Binding and Conformational Changes of Serum Albumins Upon Interaction With an Anticancer Drug, Anastrozole"
    (Pergamon-elsevier Science Ltd, 2015) Korkmaz, Filiz
    The manuscript by R. Punith and J. Seetharamappa (http://dx.doi.org/10.1016/j.saa.201202.038) presents the interaction between serum albumin from human (HAS) and from bovine (BSA) with a drug called Anastrozole (AZ). The drug is on the market for treating patients with breast cancer after surgery and for metastasis in women. The study utilizes various spectroscopic techniques such as; fluorescence, synchronous fluorescence, 3D fluorescence measurements, FTIR, CD and UV. Although there are some relatively minor comments on the paper, the main point that needs to be reviewed by the authors is the result of FTIR measurements. Based on the data provided in the text (there is no figure), the protein sample is not in its native state, which makes the data inconvenient to be used in drawing conclusions. Authors are kindly requested to take another look at the FUR experiments. (C) 2014 Elsevier B.V. All rights reserved.