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Afsharara H, Asadian E, Mostafiz B, Banan K, Bigdeli SA, Hatamabadi D, Keshavarz A, Hussain CM, Keçili R, Ghorbani-Bidkorpeh F. Molecularly imprinted polymer-modified carbon paste electrodes (MIP-CPE): A review on sensitive electrochemical sensors for pharmaceutical determinations. Trends Analyt Chem 2023. [DOI: 10.1016/j.trac.2023.116949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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2
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Hussain CM, Hussain CG, Keçili R. White analytical chemistry approaches for analytical and bioanalytical techniques: Applications and challenges. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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3
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Chawla S, Varghese BS, A C, Hussain CG, Keçili R, Hussain CM. Environmental impacts of post-consumer plastic wastes: Treatment technologies towards eco-sustainability and circular economy. Chemosphere 2022; 308:135867. [PMID: 35998732 DOI: 10.1016/j.chemosphere.2022.135867] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/12/2022] [Accepted: 07/24/2022] [Indexed: 06/15/2023]
Abstract
The huge amounts of plastic production (millions of tons) are carried out all around world every year and EU is one of the biggest consumers of these products. In 2021, recycling rate of plastic wastes around 32.5% in the EU and the rest end up on their journey in landfills and oceans that lead to environmental pollution which is a crucial global concern. Thus, it is important to take necessary steps to control the use of such plastic and to sustainably dispose them. One of the solutions to the problem is to use a better alternative to plastics which doesn't degrade land, water or air nor affects living organisms. Circular economy is another answer to this problem, it would ensure prevention of post-consumer plastic waste from getting formed. In addition, sustainable disposal approaches for plastic waste such as pyrolysis, plasma gasification, photocatalytic degradation, and production of value-added products from polymer waste can be explored. These recycling methods has huge potential for research and studies and can play a crucial in eliminating post-consumer plastic waste. This review paper aims to discuss the environmental effects of post-consumer plastic wastes as well as the emerging approaches for the treatment of these environmental wastes towards eco-sustainability and circular economy.
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Affiliation(s)
- Shashi Chawla
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University Uttar Pradesh, 20130, Noida, India.
| | - Basil Sajan Varghese
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University Uttar Pradesh, 20130, Noida, India.
| | - Chithra A
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University Uttar Pradesh, 20130, Noida, India.
| | | | - Rüstem Keçili
- Department of Medical Services and Techniques, Anadolu University, Yunus Emre Vocational School of Health Services, 26470, Eskişehir, Turkey.
| | - Chaudhery Mustansar Hussain
- Department of Chemistry & Environmental Sciences, New Jersey Institute of Technology, Newark, NJ, 07102, USA.
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Agrawal A, Yıldız ÜY, Hussain CG, Kailasa SK, Keçili R, Hussain CM. Greenness of lab-on-a-chip devices for analytical processes: Advances & future prospects. J Pharm Biomed Anal 2022; 219:114914. [PMID: 35843186 DOI: 10.1016/j.jpba.2022.114914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/22/2022] [Accepted: 06/25/2022] [Indexed: 11/25/2022]
Abstract
Lab-on-a-chip devices have now-a-days become an important aspect of analytical/bioanalytical chemistry having wide range of applications including clinical diagnosis, drug screening, cell biology, environmental monitoring, food safety analysis etc. Conventional lab-on-a-chip devices generally employ chemicals that are not environmentally friendly and were commonly fabricated on hard plastic platform which are non-degradable and hence ignore the importance of green analytical chemistry. In today's scenario, it is highly imperative to protect our environment by using less toxic and environmentally friendly chemicals/solvents and biocompatible platforms. Accordingly, the present article comprehensively reviews on the various green aspects of lab-on-a-chip devices for analytical processes which aim at fabricating environmentally friendly and cost-effective downsized devices so that the risk factor at the user's end upon longer exposure as well as to the environment can be reduced. The decisive factors for the accomplishment of green aspects of lab-on-a-chip devices including sample preparation using lab-on-a-chip systems to minimize the amount of sample/solvents to few microliters only, substitution of harmful solvents with green alternatives, minimal waste generation or proper treatment of waste and biodegradable and biocompatible platforms for fabricating lab-on-a-chip devices have been discussed in details. Additionally, the challenges that may hinder their commercialization are also critically discussed.
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Affiliation(s)
- Arpana Agrawal
- Department of Physics, Shri Neelkantheshwar Government Post-Graduate College, Khandwa 450001, India
| | - Ümit Yılmaz Yıldız
- Department of Medical Services and Techniques, Yunus Emre Vocational School of Health Services, Anadolu University, 26470 Eskişehir, Turkey
| | | | - Suresh Kumar Kailasa
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, Surat, 395 007, Gujarat, India
| | - Rüstem Keçili
- Department of Medical Services and Techniques, Yunus Emre Vocational School of Health Services, Anadolu University, 26470 Eskişehir, Turkey
| | - Chaudhery Mustansar Hussain
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ 07102, USA.
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Banan K, Ghorbani-Bidkorbeh F, Afsharara H, Hatamabadi D, Landi B, Keçili R, Sellergren B. Nano-sized magnetic core-shell and bulk molecularly imprinted polymers for selective extraction of amiodarone from human plasma. Anal Chim Acta 2022; 1198:339548. [DOI: 10.1016/j.aca.2022.339548] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 01/18/2022] [Accepted: 01/22/2022] [Indexed: 01/04/2023]
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Canpolat G, Dolak İ, Keçili R, Hussain CG, Amiri A, Hussain CM. Conductive Polymer-Based Nanocomposites as Powerful Sorbents: Design, Preparation and Extraction Applications. Crit Rev Anal Chem 2022; 53:1419-1432. [PMID: 35040725 DOI: 10.1080/10408347.2021.2025334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
Conductive polymers as composite materials have been attracted tremendous attention due to their versatile and excellent features such as tunable conductivity, facile synthesis and fabrication, high chemical and thermal stability etc. These characteristics make them versatile and let them being used in numerous fields including microelectronics, optics and biosensors. Throughout the mentioned fields, conductive polymers particularly perform as effective sorbents. Although tremendous efforts have been put into this topic, to the best of our knowledge, a comprehensive up-to-date review on the applications of conductive polymers as efficient sorbents has not been reported. The main objective of this paper is to make a significant contribution to the recent literature toward the synthesis and extraction applications of conductive polymers as efficient sorbents.
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Affiliation(s)
| | - İbrahim Dolak
- Vocational School of Technical Sciences, Dicle University, Diyarbakır, Turkey
| | - Rüstem Keçili
- Department of Medical Services and Techniques, Yunus Emre Vocational School of Health Services, Anadolu University, Eskişehir, Turkey
| | | | - Amirhassan Amiri
- Department of Chemistry, Ferdowsi University of Mashhad, Mashhad, Iran
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Agrawal A, Keçili R, Ghorbani-Bidkorbeh F, Hussain CM. Green miniaturized technologies in analytical and bioanalytical chemistry. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116383] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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8
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Canpolat G, Dolak İ, Onat R, Keçili R, Baysal Z, Ziyadanoğulları B, Ersöz A, Say R. Development of molecular imprinting-based smart cryogels for selective recognition and separation of serum cytochrome-c as a biochemical indicator. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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9
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Soyseven M, Keçili R, Aboul-Enein HY, Arli G. Determination of Potential Genotoxic Impurity, 5-Amino-2-Chloropyridine, in Active Pharmaceutical Ingredient Using the HPLC-UV System. J Chromatogr Sci 2021; 59:241-245. [PMID: 33236069 DOI: 10.1093/chromsci/bmaa100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/19/2020] [Accepted: 10/28/2020] [Indexed: 11/13/2022]
Abstract
A novel analytical method, based on high-performance liquid chromatography with a UV (HPLC-UV) detection system for the sensitive detection of a genotoxic impurity (GTI) 5-amino-2-chloropyridine (5A2Cl) in a model active pharmaceutical ingredient (API) tenoxicam (TNX), has been developed and validated. The HPLC-UV method was used for the determination of GTI 5A2Cl in API TNX. The compounds were separated using a mobile phase composed of water (pH 3 adjusted with orthophosphoric acid): MeOH, (50:50: v/v) on a C18 column (150 × 4.6 mm i.d., 2.7 μm) at a flow rate of 0.7 mL min-1. Detection was carried out in the 254 nm wavelength. Column temperature was maintained at 40°C during the analyses and 10 μL volume was injected into the HPLC-UV system. The method was validated in the range of 1-40 μg mL-1. The obtained calibration curves for the GTI compound was found linear with equation, y = 40766x - 1125,6 (R2 = 0.999). The developed analytical method toward the target compounds was accurate, and the achieved limit of detection and limit of quantification values for the target compound 5A2Cl were 0.015 and 0.048 μg mL-1, respectively. The recovery values were calculated and found to be between 98.80 and 100.03%. The developed RP-HPLC-UV analytical method in this research is accurate, precise, rapid, simple and appropriate for the sensitive analysis of target GTI 5A2Cl in model API TNX.
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Affiliation(s)
- Murat Soyseven
- Department of Medical Services and Techniques, Yunus Emre Vocational School of Health Services, Anadolu University, Eskişehir 26470, Turkey
| | - Rüstem Keçili
- Department of Pharmacy, Program in Pharmacy Services, Yunus Emre Vocational School of Health Services, Anadolu University, Eskişehir 26470, Turkey
| | - Hassan Y Aboul-Enein
- Pharmaceutical and Medicinal Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Center, Dokki, Cairo 12622, Egypt
| | - Göksel Arli
- Department of Medical Services and Techniques, Yunus Emre Vocational School of Health Services, Anadolu University, Eskişehir 26470, Turkey.,Department of Analytical Chemistry, Faculty of Pharmacy, Anadolu University, Eskişehir 26470, Turkey
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İbrahim Dolak, Keçili R, Yılmaz F, Ersöz A, Say R. Selective Recognition and Separation of Ubiquitin by Nanoparticle Embedded Cryogel Traps with Ubiquitin Memories Based on Photosensitive Covalent Imprinting. J Anal Chem 2021. [DOI: 10.1134/s1061934821020040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Sümbelli Y, Keçili R, Hür D, Ersöz A, Say R. Molecularly imprinted polymer embedded-cryogels as selective genotoxic impurity scavengers. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2020.1869259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Yiğitcan Sümbelli
- Faculty of Science, Department of Chemistry, Eskişehir Technical University, Eskişehir, Turkey
| | - Rüstem Keçili
- Yunus Emre Vocational School of Health Services, Pharmacy Services Programme, Anadolu University, Eskişehir, Turkey
| | - Deniz Hür
- Faculty of Science, Department of Chemistry, Eskişehir Technical University, Eskişehir, Turkey
| | - Arzu Ersöz
- Faculty of Science, Department of Chemistry, Eskişehir Technical University, Eskişehir, Turkey
- Bionkit Co. Ltd, Eskişehir, Turkey
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Dolak İ, Canpolat G, Onat R, Keçili R, Baysal Z, Ziyadanoğulları B, Ersöz A, Say R. A novel lanthanide-chelate based molecularly imprinted cryogel for purification of hemoglobin from blood serum: An alternative method for thalassemia diagnosis. Process Biochem 2020. [DOI: 10.1016/j.procbio.2019.12.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Keçili R. Selective Recognition of Myoglobin in Biological Samples Using Molecularly Imprinted Polymer-Based Affinity Traps. Int J Anal Chem 2018; 2018:4359892. [PMID: 30174693 PMCID: PMC6106809 DOI: 10.1155/2018/4359892] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 05/21/2018] [Accepted: 07/11/2018] [Indexed: 11/18/2022] Open
Abstract
The current work demonstrates the design, characterization, and preparation of molecularly imprinted microspheres for the selective detection of myoglobin in serum samples. The suspension polymerization approach was applied for the preparation of myoglobin imprinted microspheres. For this purpose, N-methacryloylamino folic acid-Nd3+ (MAFol- Nd3+) was chosen as the complex functional monomer. The optimization studies were performed changing the medium pH, temperature, and myoglobin concentration. pH 7.0 was determined as the optimum value where the prepared imprinted microspheres displayed maximum binding for myoglobin. The maximum binding capacity was achieved as 623 mgg-1. In addition, the selectivity studies were conducted. The results confirmed that the imprinted microspheres showed great selectivity towards myoglobin in the existence of hemoglobin, cytochrome c, and lysozyme which were chosen as potentially competing proteins.
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Affiliation(s)
- Rüstem Keçili
- Anadolu University, Yunus Emre Vocational School of Health Services, Department of Medical Services and Techniques, 26470 Eskisehir, Turkey
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16
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Keçili R, Dolak İ, Ziyadanoğulları B, Ersöz A, Say R. Ion imprinted cryogel-based supermacroporous traps for selective separation of cerium(III) in real samples. J RARE EARTH 2018. [DOI: 10.1016/j.jre.2018.02.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Abstract
Molecularly imprinted polymers (MIPs) are a type of tailor-made materials that have ability to selectively recognize the target compound/s. MIPs have gained significant research interest in solid-phase extraction, catalysis, and sensor applications due to their unique properties such as low cost, robustness, and high selectivity. In addition, MIPs can be prepared as composite nanomaterials using nanoparticles, multiwalled carbon nanotubes (MWCNTs), nanorods, quantum dots (QDs), graphene, and clays. This review paper aims to demonstrate and highlight the recent progress of the applications of imprinted nanocomposite materials in analytical chemistry.
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Affiliation(s)
- Rüstem Keçili
- Anadolu University, Yunus Emre Vocational School of Health Services, Department of Medical Services and Techniques, 26470 Eskişehir, Turkey
| | - Chaudhery Mustansar Hussain
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, N J 07102, USA
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Keçili R, Çelikoğlu U, Mil S, Ersöz A, Say R. Concanavalin A photocross-linked affinity cryogels for the purification of horseradish peroxidase. ADSORPT SCI TECHNOL 2018. [DOI: 10.1177/0263617418760637] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The present study describes an easy and efficient procedure for the purification of horseradish peroxidase from horseradish roots. For this purpose, supermacroporous cryogels having Concanavalin A were prepared by photosensitive cross-linking polymerization. Horseradish peroxidase binding and elution from the prepared cryogels were carried out changing various parameters such as initial peroxidase concentration and pH. The best binding performance was obtained at pH 7.0. The maximum horseradish peroxidase binding of the cryogels was found to be 3.85 mg g−1 cryogel. Horseradish peroxidase purification from crude extract resulted in 115.1-fold. SDS-PAGE analysis and circular dichroism measurements indicated that the horseradish peroxidase purification from horseradish roots was successfully carried out.
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Affiliation(s)
- Rüstem Keçili
- Anadolu University, Department of Medical Services and Techniques, Eskisehir, Turkey
| | - Umut Çelikoğlu
- Anadolu University, Chemistry Department, Eskisehir, Turkey
| | - Sevgi Mil
- Anadolu University, Chemistry Department, Eskisehir, Turkey
| | - Arzu Ersöz
- Anadolu University, Chemistry Department, Eskisehir, Turkey; Bionkit Ltd., Eskisehir, Turkey
| | - Rıdvan Say
- Anadolu University, Chemistry Department, Eskisehir, Turkey; Bionkit Ltd., Eskisehir, Turkey
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Emir Diltemiz S, Keçili R, Ersöz A, Say R. Molecular Imprinting Technology in Quartz Crystal Microbalance (QCM) Sensors. Sensors (Basel) 2017; 17:s17030454. [PMID: 28245588 PMCID: PMC5375740 DOI: 10.3390/s17030454] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 02/20/2017] [Accepted: 02/21/2017] [Indexed: 01/29/2023]
Abstract
Molecularly imprinted polymers (MIPs) as artificial antibodies have received considerable scientific attention in the past years in the field of (bio)sensors since they have unique features that distinguish them from natural antibodies such as robustness, multiple binding sites, low cost, facile preparation and high stability under extreme operation conditions (higher pH and temperature values, etc.). On the other hand, the Quartz Crystal Microbalance (QCM) is an analytical tool based on the measurement of small mass changes on the sensor surface. QCM sensors are practical and convenient monitoring tools because of their specificity, sensitivity, high accuracy, stability and reproducibility. QCM devices are highly suitable for converting the recognition process achieved using MIP-based memories into a sensor signal. Therefore, the combination of a QCM and MIPs as synthetic receptors enhances the sensitivity through MIP process-based multiplexed binding sites using size, 3D-shape and chemical function having molecular memories of the prepared sensor system toward the target compound to be detected. This review aims to highlight and summarize the recent progress and studies in the field of (bio)sensor systems based on QCMs combined with molecular imprinting technology.
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Affiliation(s)
- Sibel Emir Diltemiz
- Chemistry Department, Faculty of Science, Anadolu University, 26470 Eskisehir, Turkey.
| | - Rüstem Keçili
- Department of Medical Services and Techniques, Yunus Emre Vocational School of Health Services, Anadolu University, 26470 Eskisehir, Turkey.
| | - Arzu Ersöz
- Chemistry Department, Faculty of Science, Anadolu University, 26470 Eskisehir, Turkey.
| | - Rıdvan Say
- Chemistry Department, Faculty of Science, Anadolu University, 26470 Eskisehir, Turkey.
- Bionkit Co. Ltd., 26470 Eskisehir, Turkey.
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Tay T, Köse E, Keçili R, Say R. Design and Preparation of Nano-Lignin Peroxidase (NanoLiP) by Protein Block Copolymerization Approach. Polymers (Basel) 2016; 8:polym8060223. [PMID: 30979315 PMCID: PMC6432496 DOI: 10.3390/polym8060223] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 05/09/2016] [Accepted: 06/01/2016] [Indexed: 12/13/2022] Open
Abstract
This study describes the preparation of nanoprotein particles having lignin peroxidase (LiP) using a photosensitive microemulsion polymerization technique. The protein-based nano block polymer was synthesized by cross-linking of ligninase enzyme with ruthenium-based aminoacid monomers. This type polymerization process brought stability in different reaction conditions, reusability and functionality to the protein-based nano block polymer system when compared the traditional methods. After characterization of the prepared LiP copolymer nanoparticles, enzymatic activity studies of the nanoenzymes were carried out using tetramethylbenzidine (TMB) as the substrate. The parameters such as pH, temperature and initial enzyme concentration that affect the activity, were investigated by using prepared nanoLip particles and compared to free LiP. The reusability of the nano-LiP particles was also investigated and the obtained results showed that the nano-LiP particles exhibited admirable potential as a reusable catalyst.
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Affiliation(s)
- Turgay Tay
- Department of Chemistry, Anadolu University, 26470 Eskisehir, Turkey.
| | - Ender Köse
- Karen Biotechnol Ltd., Anadolu University, Technol Pk, 26470 Eskisehir, Turkey.
| | - Rüstem Keçili
- Yunus Emre Vocational School, Department of Medical Services and Techniques, Anadolu University, 26470 Eskisehir, Turkey.
| | - Rıdvan Say
- Department of Chemistry, Anadolu University, 26470 Eskisehir, Turkey.
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21
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Affiliation(s)
- İbrahim Dolak
- Vocational
School of Technical Sciences, Dicle University, Diyarbakır, Turkey
| | - Rüstem Keçili
- Plant,
Drug and Scientific Researches Center (AÜBİBAM), Anadolu University, Eskisehir, Turkey
| | - Deniz Hür
- Plant,
Drug and Scientific Researches Center (AÜBİBAM), Anadolu University, Eskisehir, Turkey
- Faculty
of Science, Chemistry Department, Anadolu University, Eskisehir, Turkey
| | - Arzu Ersöz
- Faculty
of Science, Chemistry Department, Anadolu University, Eskisehir, Turkey
| | - Rıdvan Say
- Faculty
of Science, Chemistry Department, Anadolu University, Eskisehir, Turkey
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Diltemiz SE, Hür D, Keçili R, Ersöz A, Say R. New synthesis method for 4-MAPBA monomer and using for the recognition of IgM and mannose with MIP-based QCM sensors. Analyst 2013; 138:1558-63. [DOI: 10.1039/c2an36291k] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Diltemiz SE, Ersöz A, Hür D, Keçili R, Say R. 4-Aminophenyl boronic acid modified gold platforms for influenza diagnosis. Mater Sci Eng C Mater Biol Appl 2012; 33:824-30. [PMID: 25427493 DOI: 10.1016/j.msec.2012.11.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 07/31/2012] [Accepted: 11/05/2012] [Indexed: 11/19/2022]
Abstract
As a potential pandemic threat to human health, there has been an urgent need for rapid, sensitive, simpler and less expensive detection method for the highly pathogenic influenza A virus. For this purpose, Quartz Crystal Microbalance (QCM) and Surface Plasmon Resonance (SPR) sensors have been developed for the recognition of hemagglutinin (HA) which is a major protein of influenza A virus. 4-Aminophenyl boronic acid (4-APBA) has been synthesized and used as a new ligand for binding of sialic acid (SA) via boronic acid-sugar interaction. SA has an important role in binding of HA. QCM and SPR sensor surfaces have been modified with thiol groups and then 4-APBA and SA have been immobilized on sensor surfaces, respectively. Sensor surfaces have been screened with AFM and used for the determination of HA from aqueous solution. The selective recognition of the QCM and SPR sensors toward Concanavalin A has been reported in this work. Also, the binding capacity and detection limits of QCM and SPR sensors have been calculated and detection limits were found to be 4.7 × 10(-2) μM, (0.26 μg ml(-1)) and 1.28 × 10(-1) μM, (0.72 μg ml(-1)) in the 95% confidence interval, respectively.
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Affiliation(s)
| | - Arzu Ersöz
- Department of Chemistry, Anadolu University, Eskişehir, Turkey
| | - Deniz Hür
- Department of Chemistry, Anadolu University, Eskişehir, Turkey
| | - Rüstem Keçili
- Department of Chemistry, Anadolu University, Eskişehir, Turkey
| | - Ridvan Say
- Department of Chemistry, Anadolu University, Eskişehir, Turkey
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25
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Keçili R, Say R, Ersöz A, Yavuz H, Denizli A. Purification of penicillin acylase through a monolith column containing methacryloyl antipyrine. Sep Purif Technol 2007. [DOI: 10.1016/j.seppur.2006.10.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Keçili R, Say R, Yavuz H. Synthesis and characterization of pseudo-affinity ligand for penicillin acylase purification. Int J Biol Macromol 2006; 39:250-5. [PMID: 16712925 DOI: 10.1016/j.ijbiomac.2006.04.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2006] [Revised: 03/30/2006] [Accepted: 04/03/2006] [Indexed: 11/24/2022]
Abstract
The aim of this work was to test a chromatographic affinity support containing methacryloyl antipyrine (MAAP) for penicillin acylase (PA) purification by using pure penicillin acylase and crude extract. First, MAAP as a pseudo-specific ligand was synthesized by using methacryloyl chloride and 4-aminoantipyrine. Polymer beads (average size diameter: 40-120 micro m) were prepared by suspension polymerization of ethylene glycol dimethacrylate (EGDMA) and MAAP. This approach for the preparation of adsorbent has several advantages over conventional preparation protocols. An expensive and time consuming step in the preparation of adsorbent is immobilization of a ligand to the adsorption matrix. In this procedure, affinity ligand MAAP acts as comonomer without further modification steps. Poly(EGDMA-MAAP) beads were characterized by FTIR, NMR and screen analysis. Elemental analysis of MAAP for nitrogen was estimated as 89.3 micro mol/g. The prepared adsorbent was then used for the capture of penicillin acylase in batch system. The maximum penicillin acylase adsorption capacity of the poly(EGDMA-MAAP) beads was found to be 82.2 mg/g at pH 5.0. Chromatography with crude feedstock resulted in 23.2-fold purification and 93% recovery with 1.0 M NaOH.
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Affiliation(s)
- Rüstem Keçili
- Department of Chemistry, Anadolu University, Eskisehir, Turkey
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