Umaz, Adil
Loading...
Profile URL
Name Variants
Umaz, A.
Job Title
Doktor Öğretim Üyesi
Email Address
adilumaz@artuklu.edu.tr
Main Affiliation
Department of Medical Services and Techniques / Tıbbi Hizmetler ve Teknikleri Bölümü
Status
Website
ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
Sustainable Development Goals
3
GOOD HEALTH AND WELL-BEING
2
Research Products
6
CLEAN WATER AND SANITATION
1
Research Products
7
AFFORDABLE AND CLEAN ENERGY
4
Research Products
9
INDUSTRY, INNOVATION AND INFRASTRUCTURE
1
Research Products
12
RESPONSIBLE CONSUMPTION AND PRODUCTION
1
Research Products
15
LIFE ON LAND
1
Research Products
Documents
14
Citations
87
h-index
5
Documents
13
Citations
66
Scholarly Output
20
Articles
20
Views / Downloads
95/1492
Supervised MSc Theses
0
Supervised PhD Theses
0
WoS Citation Count
52
Scopus Citation Count
69
WoS h-index
3
Scopus h-index
4
Patents
0
Projects
3
WoS Citations per Publication
2.60
Scopus Citations per Publication
3.45
Open Access Source
9
Supervised Theses
0
Google Analytics Visitor Traffic
| Journal | Count |
|---|---|
| Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi | 3 |
| Journal of Alloys and Compounds | 2 |
| Environmental Monitoring and Assessment | 1 |
| Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi | 1 |
| Hacettepe University Journal of the Faculty of Pharmacy | 1 |
Current Page: 1 / 4
Scopus Quartile Distribution
Competency Cloud
Scholarly Output Search Results
Now showing 1 - 10 of 20
Article Citation - Scopus: 4Determination of Multi-Elemental Analysis and Antioxidant Activities of Helichrysum arenarium (L.) Moench Species(Hacettepe University, 2023) Umaz, Adil; Umaz, Kader; Aydın, Fırat; Aydın, IşılIn this study, multi-elemental analysis and antioxidant activity of samples belonging to two different populations of Helichrysum arenarium (L.) Moench known as the immortal flower was determined. The results obtained were compared among themselves. Ca, Mg, Al, Fe, Na, Li, Be, B, Ti, Cr, Ni, Zn, Mo, and Pb element contents of the sample belonging to the B population were determined that be higher than that of the other population. The K, V, Mn, Co, Cu, As, Se, Sn, and Ba element contents of the sample belonging to the G population were determined that be higher than that of the other population. When the antioxidant activity results of the species were evaluated; according to the CUPRAC (Cupric Reducing Antioxidant Capacity) method, the sample extracts of the B and G populations were determined that showed lower activity than the standard BHA, BHT, and Trolox values at 20 and 40 µg/mL concentrations, and showed close activity compared to the standards at 80 µg/mL concentrations. The species was determined that be antioxidant activity even at low concentrations. According to DPPH (2,2-diphenyl-1-picrylhydrazyl) method, the antioxidant activity of the extract of the B and G populations was determined as 22.95 and 23.76 mg TE/mL, respectively.Article Citation - WoS: 5Citation - Scopus: 5Determination of Zinc in Dried Nuts by Slotted Quartz Tube-Flame Atomic Absorption Spectrometry (SQT-FAAS) With Citric Acid-Coated Magnetic Nanoparticle (CAMNP) Based Solid Phase Extraction (SPE)(Taylor & Francis Inc, 2025) Umaz, Kader; Umaz, Adil; Aydin, Isil; Aydin, FiratThis study reports a sensitive method for trace zinc using slotted quartz tube-flame atomic absorption spectrometry (SQT-FAAS) with citric acid-coated magnetic nanoparticle-solid phase extraction (CAMNP-SPE). To increase the efficiency, we univariately optimized the pH, buffer volume, CAMNP mass, eluent concentration and volume, mixing type and time, temperature, and interaction time. The study identified the limits of detection and quantification values for CAMNP-SPE-SQT-FAAS under the specified optimum conditions to be 12.30 and 41.00 mu g L-1, respectively. The newly developed method improved the detection power of traditional FAAS by 13.25 times. The findings of this study report a sensitive and accurate method to determine trace zinc in complex matrices.Article Citation - Scopus: 2Design, Synthesis, Characterization, and Surface Texture Investigation of a Novel Nickel-Supported Magnetic Nanocatalyst (Hierarchical Layered) for Efficient Hydrogen Production (Hydrolysis/Alcoholysis)(Elsevier, 2025) Umaz, Adil; Ece, Mehmet SakirIn this study, Fe3O4@TROMETHAMINE-Ni magnetic nanocatalysts (MNCs) were synthesized for the first time. Various characterization techniques, including fourier transform infrared spectroscopy (FTIR), x-ray diffractometer (XRD), scanning electron microscopy (SEM), pulsed sample magnetometer, electron paramagnetic resonance (EPR), and surface area measurement (BET), have been used to elucidate the structure and morphology of Fe3O4@TROMETHAMINE-Ni MNCs. The average particle size, surface area, and saturation magnetization value of Fe3O4@TROMETHAMINE-Ni MNCs have been measured as 7.97 nm, 60.11 m2/g, and 43.49 emu/g, respectively. The Fe3O4@TROMETHAMINE-Ni MNCs were determined to be superparamagnetic. EPR analysis was used to calculate the g-factor values before and after sodium borohydride (NaBH4) hydrolysis of Fe3O4@TROMETHAMINE-Ni MNCs, which were found to be 4.81 and 4.95, respectively. This value indicates that the electrons surrounding the oxygen vacancies formed on the catalyst surface can enhance transport efficiency and improve catalytic activity. It was optimized by many parameters in hydrogen production with hydrolysis/alcoholysis of NaBH4 using Fe3O4@TROMETHAMINE-Ni MNCs. For hydrogen production by NaBH4 hydrolysis of Fe3O4@TROMETHAMINE-Ni MNCs, it has been carried out using 265 mM NaBH4, 75 mg Fe3O4@TROMETHAMINE-Ni MNCs, and 20 mL of pure water/methanol at room temperature. The amount of hydrogen produced under optimum conditions has been measured as 1533 mL/min & sdot;gcat. It was determined that the reusability performance of Fe3O4@TROMETHAMINE-Ni MNCs showed a minor decrease of 8.42 % compared to the initial usage after the sixth cycle. These results show that Fe3O4@TROMETHAMINE-Ni MNCs are a promising material with advantages such as high efficiency in hydrogen production and the ability to be used repeatedly.Article Gümüş nanomalzeme sentezi ve antimikrobiyal uygulamaları(2019) Baran, Mehmet Fırat; Saydut, Abdurrahman; Umaz, AdilÇevre dostu sentez yöntemlerinin her geçen gün daha etkin olması ve nanopartiküllerin (NP’lerin) kullanım alanlarının yaygınlığı bu yöntemlere olan ilginin oldukça artmasına neden olmaktadır. Biz atık durumunda ki zeytin yapraklarından elde ettiğimiz özüt ile gümüş nano partikülleri (AgNP’leri) basit, ucuz ve çevre dostu bir yöntemle sentezledik. Bu partiküllerin Ultraviyole ve Görünür Işık Absorpsiyon Spektroskopi (UVVis.), Fourıer Dönüşümlü Kızılötesi Spektroskopisi (FTIR), X-Işınları Kırınım Cihazı (XRD), Taramalı Elektron Mikroskobu- Enerji Yayılımlı X-ışını (SEM-EDX) ve Termo Gravimetrik (TGA-DTA) analizleri kullanılarak karakterizasyon işlemi yapılmıştır. Antibiyotik dirençliliği günümüz dünyasının ciddi sorunlarından biri bu sebeple elde edilen partiküllerin patojen gram pozitif Staphylococcus aureus ATCC 29213, gram negatif Escherichia coli ATCC 25922 suşları ve Candida albicans mayası üzerinde etkili bir anti-mikrobiyal aktivite gösterdiği tespit edilmiştir. AgNP’lerin MİK (Minimum İnhibisyon Konsantarasyon) değerleri sırası 0.112, 0.028, ve 0.007 olarak bulunmuşturArticle Synthesis, Characterization of a Novel Nickel-Organo Supported Magnetic Nanocatalysts (Fe3O4@SiO2@Tris@Ni): Effective Hydrogen Generation From Sodium Borohydride(Elsevier Science SA, 2025) Umaz, Adil; Ece, Mehmet SakirEnergy demand and environmental problems are increasing day by day as global threats. The burning of fossil fuels has harmful effects on ecological systems. Global threats related to energy can be eliminated by environmentally friendly, cost-effective, and renewable resources. Hydrogen is among the sustainable and renewable energy sources due to being the most common element on earth, non-toxic reaction products and having high calorific value. It was the first time nickel-organo-silica supported magnetic nanocatalysts (MNCs) were synthesised in this study. These synthesized MNCs were characterized in detail. Then, these MNCs were used to produce hydrogen from sodium borohydride in high efficiency. The saturation magnetization value and average particle size of the Fe3O4@SiO2@Tris@Ni MNCs have been measured as 33.27 emu/g and 10.26 nm, respectively. The Fe3O4@SiO2@Tris@Ni MNCs were used for the first time in hydrogen generation in this study. The hydrogen generation by sodium borohydride (NaBH4) methanolysis/ethylene glycolysis of the catalyst has been carried out at 298 K using 0.75 % NaBH4, 75 mg nanocatalyst, and 20 mL methanol/ethylene glycol. The amount of hydrogen produced in the methanol/ethylene glycol processes has been measured as 2167 mL H2/g NaBH4. The highest hydrogen generation rate has been obtained using 0.75 % NaBH4, 75 mg catalyst, and 20 mL ethylene glycol, and this value was calculated as 1067 mL H2/(min & sdot;gcat). The reusability performance of the catalyst was determined to have a decrease of 25.86 % after the fifth cycle compared to the initial use. According to these results, the catalyst is a promising material with advantages such as high efficiency in hydrogen generation and the possibility of repeated use.Article Citation - WoS: 2Citation - Scopus: 5Evaluation as time-dependent of pesticides applied in pre-harvest period of grown vegetables: removal of pesticide residues in the vegetables(Taylor & Francis Online, 2022) Elmastas, Ayhan; Umaz, Adil; Pirinc, Vedat; Aydin, FiratPesticide use has benefits such as increasing the quality and amount of food required to sustain the human population. However, its harmful effects on the environment and human health are of great concern. The aim of this study was to evaluate concentrations as timedependent of the pesticide and the removal of pesticide residues in vegetable samples with the aid of the QuEChERS 2007.01 procedure. The analytical method has been validated according to SANTE/12682/2019. Good linearity (2.5–100 ng/mL, R2 > 0.99) was observed, and the recovery yields ranged from 94.76% to 104.03%, repeatability (RSDr) ranged from 2.33% to 4.59% and reproducibility (RSDwR) ranged from 4.06% to 8.40%. LOD and LOQ values were determined to be 3.00 ng/g and 10.00 ng/g, respectively. The grown tomato, eggplant and cucumber samples were sprayed with drugs against pests and diseases. Imidacloprid in the grown tomato, cucumber and eggplant samples was determined to be 0.026, 0.186 and 0.096 mg/kg, respectively. Trifloxystrobin was determined to be 0.102, 0.129 and 0.063 mg/kg, respectively. It was determined that pesticide residue in vegetable samples decreases by washing and peeling but does not disappear completely. The peeling process was determined to be more effective than washing. The concentration of pesticide residues in the shell part was found to be hight than in the whole product. Thus, it is important to consume vegetables with their skin peeled and to consume the unpeeled ones by washing them with water at least.Article Determination of Trace Manganese Contents in Real Samples and Interference Studies by Combining Coated Magnetic Nanoparticle-Assisted Solid-Phase Microextraction With Slotted Quartz Tube-Flame Atomic Absorption Spectrometry(Springer Wien, 2025) Aydin, Firat; Umaz, Adil; Umaz, Kader; Aydin, IsilThis study aimed to propose a sensitive analytical method to determine trace levels of manganese by combining magnetic nanoparticle (MNP)-assisted solid-phase microextraction (SPME) with slotted quartz tube flame atomic absorption spectrometry (SQT-FAAS). MNP was used as an absorbent in the extraction processes, univariately optimizing parameters such as pH, buffer volume, MNP amount, eluent concentration and volume, mixing type and duration, and interaction time to improve extraction efficiency. The limits of detection and quantification values for the developed MNP-SPME-SQT-FAAS method were identified as 108 and 359 mu g/dm(3), respectively. The coefficient of determination, percentage relative standard deviation, and percentage recovery values were also calculated as 0.9995, 3.84, and 96.73, respectively. As a result, the developed MNP-SPME-SQT-FAAS method improved the detection power of the traditional FAAS method by 16.91-fold. This method is the first to accurately and sensitively determine trace manganese content in nut samples. The developed MNP-SPME-SQT-FAAS method was confirmed that have a high sensitivity to determine the trace amounts of manganese and displayed potential applicability for real samples.Article Citation - WoS: 3Citation - Scopus: 3Determination of hydroxymethylfurfural in Turkish honeys, pekmez (grape molasses), and jam samples by high-performance liquid chromatography with diode array detection(Wiley Online Library, 2022) Elmastas, Ayhan; Aydin, Firat; Umaz, Adil; Kılınc, Ersin; Arslan, Yasin; aydin, IsilHydroxymethylfurfural (HMF) is a chemical contaminant that is not naturally present in carbohydrate-containing food samples. The HMF amounts were changed between 4.8 and 214.1 mg/kg in honey; between 7.8 and 204.0 mg/kg in pekmez (grape molasses); between 5.9 and 22.4 mg/kg in strawberry jam; between 6.0 and 65.4 mg/kg in apricot jam; and between 9.2 and 55.9 mg/kg in cherry found by HPLC. The linear calibration plot of HMF was ranged from 0.05 to 10.0 mu g/ml. The correlation coefficient was found to be 0.99997. LOD and LOQ values were found to be 12.0 and 40.0 ng/ml, respectively. According to the experimental results, HMF amounts of four honey samples, three pekmez (grape molasses) samples, one apricot jam, and one cherry jam for investigated samples were found to be higher than the permission amount of Turkish Food Codex. Novelty impact statement Based on experimental results in this study, if the honey is in a transparent package such as a glass, it should be stored in a dark environment. It would be healthier to prefer molasses produced by reliable brands at low temperatures under vacuum instead of molasses made with traditional methods in open boilers. Generally, since jams with high HMF amount have an overcooked or even burnt flavor, this is an extremely negative situation for consumers.Article İki Farklı Lokasyona ait Altın Otunun (Helichrysum arenarium) Uçucu Bileşenlerinin Belirlenmesi ve Karşılaştırılması(Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020) Umaz, Adil; Umaz, KaderBu çalışmada, 2019 yılı Haziran-Ağustos ayında iki farklı bölgede toplanan Altın Otunun (Helichrysum arenarium) Katı Faz Mikro Ekstraksiyon (SPME) yöntemi kullanılarak uçucu bileşenleri Gaz Kromatografisi-Kütle Spektroskopisi (GC-MS) ile belirlendi. Bitlis Nemrut Krater Gölü çevresindeki Altın Otu örneğinde toplam 21 adet uçucu bileşen tespit edilirken, Giresun’un Şebinkarahisar İlçesi’nin dağlık bölgelerindeki Altın Otu örneğinde toplam 33 adet uçucu bileşen tespit edildi. Bitlis Nemrut Krater Gölü çevresindeki Altın Otunda α-sedren (%26.65), α-pinen (%14.97), α-humulen (%10.65), aromadendren (%6.79), α-kurkumen (%6.31), germakren B (%4.43), α-kadinen (%3.82), ökaliptol (%3.57), α-duprezianen (%3.57) ve limonen (%2.69) uçucu ana bileşen olarak tespit edilirken, Giresun Şebinkarahisar İlçesinin dağlık alanlarındaki Altın Otuna ait örnekte α-pinen (%47.63), α-himakhalen (%17.01), α-humulen (%5.21), δ-kadinen (%4.98), γ-kadinen (%4.01) ve ökaliptol (%3.46) uçucu ana bileşen olarak tespit edildi.Article Determination and comparison of metal analysis in the species belonging to different families by inductively coupled plasma-mass spectrometry (ICP-MS)(International Journal of Chemistry and Technology (IJCT), 2022) Umaz, Adil; Aydın, Fırat; Fırat, Mehmet; Ertaş, AbdulselamThe consumption of plants and their use for medicinal purposes are increasing day by day. Therefore, knowing the plant contents is important for human health. In this study, metal contents of nineteen species belonging to four different families were determined. Different species belonging to the same genus belonging to these families and metal contents of different parts of the same sample were compared with each other. The metal contents of different species of the same genus have been determined that be different from each other. The metal contents of different parts of the same species were determined that be different from each other. In addition, the Cd and Pb metal content results of the species were compared with the maximum allowable concentration values in raw plant material of the World Health Organization's (WHO). Cd metal content in all species was found to be higher than the value determined by the WHO. Only the Pb metal content of the A3 species was found to be higher than the value determined by WHO.
