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Asena Özbek M, Özgür E, Bereli N, Denizli A. Molecular imprinted based microcryogels for thrombin purification. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1228:123848. [PMID: 37582320 DOI: 10.1016/j.jchromb.2023.123848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 08/01/2023] [Accepted: 08/08/2023] [Indexed: 08/17/2023]
Abstract
In addition to understanding and explaining the functions of proteins, the need for low-cost, easy and efficient purification methods has been increasing in the field of protein purification, which is also important for enzyme production. In this context, an alternative approach has been developed for the purification of thrombin, which has a crucial role in the hemostatic process, via thrombin imprinted microcryogels that allow reuse and have high selectivity. The characterization studies of the microcryogels were accomplished with micro-computed tomography (µCT), scanning electron microscopy (SEM), optical microscope, surface area measurements (BET analyses) and swelling test measurements. By scanning various parameters affecting thrombin adsorption, the maximum thrombin adsorption capacity (Qmax) was found to be 55.86 mg/g. Also, the selectivity of microcryogels was investigated with the competitive agents and reusability studies were performed. The purity of thrombin was evaluated by Fast Performance Liquid Chromatography (FPLC) method. Experimental results indicated that adsorption of thrombin by the developed microcryogels fit the Langmuir isotherm model (Qmax: 55.86 mg/g, R2: 0.9505) and pseudo-second order for three different thrombin concentrations (R2: 0.9978, R2: 0.9998, R2: 0.9999).
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Affiliation(s)
- Merve Asena Özbek
- Department of Chemistry Division, Institute of Science, Hacettepe University, Ankara, Turkey; Hacettepe University, Faculty of Science, Department of Chemistry, Ankara, Turkey
| | - Erdoğan Özgür
- Hacettepe University, Faculty of Science, Department of Chemistry, Ankara, Turkey
| | - Nilay Bereli
- Hacettepe University, Faculty of Science, Department of Chemistry, Ankara, Turkey
| | - Adil Denizli
- Hacettepe University, Faculty of Science, Department of Chemistry, Ankara, Turkey.
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2
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Effect of thrombin conjugation on hemostatic efficacy of PLGA mesh through reagent free surface modification. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.10.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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3
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Peptidomics analysis of enzymatic hydrolysis beef. Food Sci Biotechnol 2022; 31:1267-1275. [DOI: 10.1007/s10068-022-01122-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 05/30/2022] [Accepted: 06/09/2022] [Indexed: 11/04/2022] Open
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Leng F, Lei S, Luo B, Lv S, Huang L, Jiang X. Size-tunable and biodegradable thrombin-functionalized carboxymethyl chitin microspheres for endovascular embolization. Carbohydr Polym 2022; 286:119274. [DOI: 10.1016/j.carbpol.2022.119274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 02/14/2022] [Accepted: 02/17/2022] [Indexed: 12/12/2022]
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5
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Chen YY, Fan SC, Chang CC, Wang JC, Chiang HM, Juang TY. Non-Conventional Fluorescence and Cytotoxicity of Two Aliphatic Hyperbranched Polymer Dots Having Poly(amic acid) Structures: Implications for Labeling Nanodrug Carriers. ACS OMEGA 2021; 6:33159-33170. [PMID: 34901667 PMCID: PMC8655931 DOI: 10.1021/acsomega.1c05537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 11/10/2021] [Indexed: 06/14/2023]
Abstract
In this study, we used one-pot A2 + B3 polymerizations to synthesize two aliphatic + alicyclic polymer dots (PDs) having non-conjugated hyperbranched structures, employing two types of dianhydrides as the A2 components, possessing bridged bicyclic alkene (PD-BT) and non-alkene (PD-ET) units, and Jeffamine T403 polyetheramine (T403) as the B3 components. We prepared PD-ET from commercially available ethylenediaminetetraacetic dianhydride (EDTAD, A2) and T403 (B3) and PD-BT from bicyclo[2.2.2]oct-7-ene-2,3,5,6-tetracarboxylic dianhydride (BCDA, A2) and T403 (B3). These two types of PDs possessed non-conjugated hyperbranched poly(amic acid) structures with terminal amino functional groups. PD-BT and PD-ET exhibited non-conventional fluorescence with emissions at 435 and 438 nm, respectively, and quantum yields of 12.8 and 14.0%, respectively. The fluorescence intensity of PD-ET was influenced by the pH, but PD-BT was less affected because of its rigid aliphatic bridged bicyclic structure. In aqueous solutions, the sizes of the PD-BT and PD-ET nanoparticles were 3-5 nm, and their net charges can be adjusted by varying the pH. These PDs were non-cytotoxic toward human MCF-7 breast cancer cells and human keratinocyte HaCaT cells at concentrations of 50 μg mL-1 for PD-BT and 500 μg mL-1 for PD-ET. Confocal microscopic bioimaging revealed that the PDs were located within the cells after treatment for 6 h. These PDs were easy to prepare, highly water-soluble, and possessed a large number of peripheral functional groups for further modification. Combined with their non-conventional fluorescence, they appear to have potential uses in bioimaging and as drug-labeling carriers.
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Affiliation(s)
- Yu-Yu Chen
- Department
of Cosmeceutics, China Medical University, Taichung 40402, Taiwan
| | - Siao-Cian Fan
- Department
of Cosmeceutics, China Medical University, Taichung 40402, Taiwan
| | - Chang-Cheng Chang
- Aesthetic
Medical Center, China Medical University
Hospital, Taichung 40402, Taiwan
- School
of Medicine, China Medical University, Taichung 40402, Taiwan
| | - Jian-Cheng Wang
- Department
of Cosmeceutics, China Medical University, Taichung 40402, Taiwan
| | - Hsiu-Mei Chiang
- Department
of Cosmeceutics, China Medical University, Taichung 40402, Taiwan
| | - Tzong-Yuan Juang
- Department
of Cosmeceutics, China Medical University, Taichung 40402, Taiwan
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Ibne Mahbub MS, Sultana T, Gwon JG, Lee BT. Fabrication of thrombin loaded TEMPO-oxidized cellulose nanofiber-gelatin sponges and their hemostatic behavior in rat liver hemorrhage model. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 33:499-516. [PMID: 34644247 DOI: 10.1080/09205063.2021.1992877] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Excessive blood loss due to trauma or major surgical intervention can be life threatening which necessitates rapid hemorrhage management for the prevention of such bleeding related sufferings. Broad interest in developing new hemostatic technologies have been paid for bleeding control but none of them found completely satisfactory especially in terms of rapid clotting, absorbability, porosity, cost effectiveness and safety. To address these issues, a combination of active and passive hemostatic materials from biological sources could be a wise choice. Therefore, plant-derived TEMPO-oxidized nanocellulose (TOCN)/biopolymer gelatin (G) sponge was successfully prepared in co-operation with intrinsic blood coagulation enzyme thrombin (Th) via freeze drying method and their application as rapid hemostatic dressing was investigated. Morphological and in vitro characteristics of the samples were evaluated where uniformity, porosity, swelling, degradation behavior had direct relationship with the percent gelatin incorporation. In vitro hemocompatibility and cyto-compatibility of these sponges were confirmed as well. Among the samples, TOCN 2.5G-Th sponge exhibited excellent hemostatic effect, rapid absorbability, minimum clotting time (1.37 ± 0.152 min) and reduction of blood loss was ensured through rat liver punch biopsy model. The results demonstrated that, Th enhanced blood coagulation, platelet and red blood cell aggregation following application of biopolymer TOCN 2.5G-Th sponge compared with samples devoid of Th. In short, the functional, cost effective and nontoxic sponge developed via facile preparation could potentially be used as an absorbable biomaterial to achieve immediate hemostasis. HighlightsPlant-derived TEMPO-oxidized nanocellulose (TOCN) and biopolymer gelatin (G) was successfully used to prepare a hemostatic sponge in combination with intrinsic blood coagulation enzyme thrombin (Th).The TG sponge combines the advantages of TOCN and gelatin, exhibiting biocompatibility, biodegradability and superior blood-absorption performance.The TOCN 2.5G-Th sponge improves plasma absorption, red blood cell adhesion, aggregation, platelet adhesion and activation leading to enhanced hemostasis effect and shorter hemostasis time in vitro and in vivo.
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Affiliation(s)
- Md Sowaib Ibne Mahbub
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan, South Korea
| | - Tamanna Sultana
- Institute of Tissue Regeneration, Collage of Medicine, Soonchunhyang University, Cheonan, South Korea
| | - Jae-Gyoung Gwon
- Division of Environmental Material Engineering, Department of Forest Products, Korea Forest Research Institute, Seoul, South Korea
| | - Byong-Taek Lee
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan, South Korea.,Institute of Tissue Regeneration, Collage of Medicine, Soonchunhyang University, Cheonan, South Korea
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Tanwar S, Kaur V, Kaur G, Sen T. Broadband SERS Enhancement by DNA Origami Assembled Bimetallic Nanoantennas with Label-Free Single Protein Sensing. J Phys Chem Lett 2021; 12:8141-8150. [PMID: 34410129 DOI: 10.1021/acs.jpclett.1c02272] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Engineering hotspots in surface-enhanced Raman spectroscopy (SERS) through precisely controlled assembly of plasmonic nanostructures capable of expanding intense field enhancement are highly desirable to enhance the potentiality of SERS as a label-free optical tool for single molecule detection. Inspired by DNA origami technique, we constructed plasmonic dimer nanoantennas with a tunable gap decorated with Ag-coated Au nanostars on origami. Herein, we demonstrate the single-molecule SERS enhancements of three dyes with emission in different spectral regions after incorporation of single dye molecules in between two nanostars. The enhancement factors (EFs) achieved in the range of 109-1010 for all the single dye molecules, under both resonant and nonresonant excitation conditions, would enable enhanced photostability during time-series measurement. We further successfully explored the potential of our designed nanoantennas to accommodate and detect a single thrombin protein molecule after selective placement in the wide nanogap of 10 nm. Our results suggest that such nanoantennas can serve as a broadband SERS enhancer and enable specific detection of target biological molecules with single-molecule sensitivity.
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Affiliation(s)
- Swati Tanwar
- Institute of Nano Science and Technology, Sector-81, Mohali, Punjab-140306, India
| | - Vishaldeep Kaur
- Institute of Nano Science and Technology, Sector-81, Mohali, Punjab-140306, India
| | - Gagandeep Kaur
- Institute of Nano Science and Technology, Sector-81, Mohali, Punjab-140306, India
| | - Tapasi Sen
- Institute of Nano Science and Technology, Sector-81, Mohali, Punjab-140306, India
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Xue X, He H, Liu C, Wang L, Wang L, Wang Y, Wang L, Yang C, Wang J, Hou R. l-Theanine improves emulsification stability and antioxidant capacity of diacylglycerol by hydrophobic binding β-lactoglobulin as emulsion surface stabilizer. Food Chem 2021; 366:130557. [PMID: 34284195 DOI: 10.1016/j.foodchem.2021.130557] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 05/14/2021] [Accepted: 07/06/2021] [Indexed: 12/18/2022]
Abstract
Diacylglycerol (DAG) is commonly used as fat substitute in food manufacture due to its functional properties, but DAG has poor emulsification and oxidation stability, which limits its wide application in food industry. In this work, fluorescence quenching data and thermodynamic parameters were analyzed to investigate the interaction mechanism between l-theanine (L-Th) and β-lactoglobulin (β-LG). DAG emulsion was prepared by using β-lactoglobulin-theanine (β-LG-Th) as surface stabilizer, and its emulsification and oxidation stability were evaluated. The results showed that the hydrophobic interaction played an important role on the conjugate of β-LG and L-Th due to the negative values for ΔG, positive values for ΔH and ΔS at pH 4.0, pH 6.0 and pH 8.0. The DAG has been better embedded by using β-LG-Th as surface stabilizer, and the droplet size was about 0.2 µm to 1.5 µm when the pH was 6.0, the ratio of L-Th to β-LG was 1:1. β-LG-Th as surface stabilizer for DAG can increase the ζ-potential and emulsion index, make the emulsion droplet size distribution more uniform. The l-theanine was better to be used to improve the emulsification stability and antioxidant capacity of DAG by binding β-LG as surface stabilizer.
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Affiliation(s)
- Xiuheng Xue
- State Key Laboratory of Tea Plant Biology and Utilization, College of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Haiyong He
- State Key Laboratory of Tea Plant Biology and Utilization, College of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Cunjun Liu
- State Key Laboratory of Tea Plant Biology and Utilization, College of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Li Wang
- State Key Laboratory of Tea Plant Biology and Utilization, College of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Lu Wang
- State Key Laboratory of Tea Plant Biology and Utilization, College of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Yueji Wang
- State Key Laboratory of Tea Plant Biology and Utilization, College of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Luping Wang
- College of Animal Science & Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Chen Yang
- State Key Laboratory of Tea Plant Biology and Utilization, College of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Juhua Wang
- College of Animal Science & Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China.
| | - Ruyan Hou
- State Key Laboratory of Tea Plant Biology and Utilization, College of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China.
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Mendes LG, Ferreira FV, Sielski MS, Livi S, Rocco SA, Sforça ML, Burga-Sánchez J, Vicente CP, Mei LHI. Electrospun Nanofibrous Architectures of Thrombin-Loaded Poly(ethylene oxide) for Faster in Vivo Wound Clotting. ACS APPLIED BIO MATERIALS 2021; 4:5240-5250. [DOI: 10.1021/acsabm.1c00402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Larissa G. Mendes
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas 13083-852, São Paulo, Brazil
| | - Filipe V. Ferreira
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas 13083-852, São Paulo, Brazil
| | - Micheli S. Sielski
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas, Campinas 13083-862, São Paulo, Brazil
| | - Sebastien Livi
- Université de Lyon, Ingénierie des Matériaux Polymères CNRS, UMR 5223, INSA Lyon, Villeurbanne F-69621, France
| | - Silvana A. Rocco
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-100, São Paulo, Brazil
| | - Maurício L. Sforça
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-100, São Paulo, Brazil
| | - Jonny Burga-Sánchez
- Physiological Science Department, Piracicaba Dental School, University of Campinas, Campinas 13414-903, São Paulo, Brazil
| | - Cristina P. Vicente
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas, Campinas 13083-862, São Paulo, Brazil
| | - Lucia H. I. Mei
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas 13083-852, São Paulo, Brazil
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Chen F, Huang G. Mechanism and inhibition kinetics of peptide P13 as thrombin inhibitor. Int J Biol Macromol 2019; 150:1046-1052. [PMID: 31743711 DOI: 10.1016/j.ijbiomac.2019.10.109] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/22/2019] [Accepted: 10/10/2019] [Indexed: 12/11/2022]
Abstract
Excessive coagulation can easily lead to arterial and venous thrombosis, which is the main reason for the evolution of myocardial infarction and cerebrovascular accidents. As a key coagulation factor for the coagulation pathway, thrombin has become a remarkable target for the control of thrombosis. The synthesized peptide P13 with amino acid sequence of N-RGDAGFAGDDAPR was expected to be an inhibitor with higher antithrombotic activity. The results showed that the IC50 (50% inhibition of thrombin activity) of the peptide P13 was determined by colorimetric method to be 115 µM. And enzyme kinetic experiments showed that P13 was a competitive inhibitor of thrombin with Ki = 106 µM. Fluorescence spectra and three-dimensional fluorescence showed that P13 could alter the secondary structure of thrombin and the microenvironment of certain chromogenic amino acids. P13 can spontaneously bind with thrombin exosite 1 in the form of 1:1 mainly through hydrogen bonding and van der Waals force. And the optimal docking mode of P13 and thrombin was revealed by molecular docking with "-CDOCKER_Energy" of 178.679 kcal mol-1. This study revealed P13 may become a potential anticoagulant drug widely used after further studies in preclinical and clinical trials.
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Affiliation(s)
- Fangyuan Chen
- Key Lab of Marine Food Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou, China
| | - Guangrong Huang
- Key Lab of Marine Food Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou, China.
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