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Razumiene J, Gureviciene V, Sakinyte I, Rimsevicius L, Laurinavicius V. The Synergy of Thermally Reduced Graphene Oxide in Amperometric Urea Biosensor: Application for Medical Technologies. SENSORS 2020; 20:s20164496. [PMID: 32796728 PMCID: PMC7472232 DOI: 10.3390/s20164496] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/05/2020] [Accepted: 08/08/2020] [Indexed: 12/13/2022]
Abstract
Thermally reduced graphene oxide (TRGO) is a graphene-based nanomaterial that has been identified as promising for the development of amperometric biosensors. Urease, in combination with TRGO, allowed us to create a mediator-free amperometric biosensor with the intention of precise detection of urea in clinical trials. Beyond simplicity of the technology, the biosensor exhibited high sensitivity (2.3 ± 0.1 µA cm−2 mM−1), great operational and storage stabilities (up to seven months), and appropriate reproducibility (relative standard deviation (RSD) about 2%). The analytical recovery of the TRGO-based biosensor in urine of 101 ÷ 104% with RSD of 1.2 ÷ 1.7% and in blood of 92.7 ÷ 96.4%, RSD of 1.0 ÷ 2.5%, confirmed that the biosensor is acceptable and reliable. These properties allowed us to apply the biosensor in the monitoring of urea levels in samples of urine, blood, and spent dialysate collected during hemodialysis. Accuracy of the biosensor was validated by good correlation (R = 0.9898 and R = 0.9982) for dialysate and blood, utilizing approved methods. The advantages of the proposed biosensing technology could benefit the development of point-of-care and non-invasive medical instruments.
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Affiliation(s)
- Julija Razumiene
- Institute of Biochemistry, Life Science Center of Vilnius University, LT-10257 Vilnius, Lithuania; (V.G.); (I.S.); (V.L.)
- Correspondence:
| | - Vidute Gureviciene
- Institute of Biochemistry, Life Science Center of Vilnius University, LT-10257 Vilnius, Lithuania; (V.G.); (I.S.); (V.L.)
| | - Ieva Sakinyte
- Institute of Biochemistry, Life Science Center of Vilnius University, LT-10257 Vilnius, Lithuania; (V.G.); (I.S.); (V.L.)
| | - Laurynas Rimsevicius
- Institute of Clinical Medicine, Vilnius University, LT-08661 Vilnius, Lithuania;
| | - Valdas Laurinavicius
- Institute of Biochemistry, Life Science Center of Vilnius University, LT-10257 Vilnius, Lithuania; (V.G.); (I.S.); (V.L.)
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Li N, Yang X, Liu W, Xi G, Wang M, Liang B, Ma Z, Feng Y, Chen H, Shi C. Tannic Acid Cross-linked Polysaccharide-Based Multifunctional Hemostatic Microparticles for the Regulation of Rapid Wound Healing. Macromol Biosci 2018; 18:e1800209. [PMID: 30238611 DOI: 10.1002/mabi.201800209] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 07/26/2018] [Indexed: 12/20/2022]
Abstract
Hemostatic microparticles (HMs) have been widely used in surgery. To improve the comprehensive performance of HMs, multifunctional HMs named HM15 and HM15 ' are prepared from starch, carboxymethyl chitosan, hyaluronic acid, and tannic acid. Herein, tannic acid is used as an effective cross-linker. A 3D network structure for cell growth and wound repair can be formed by secondary cross-linking. Through synergistic effect of these natural materials, the process of wound healing can be regulated controllably. HM15 and HM15 ' have the ability of rapid hemostasis. Moreover, HM15 ' shows excellent properties in antibacteria and wound healing acceleration. Blood clotting time treated with different HMs is shortened obviously from 436.8 s to 126 s. Compared with Celox, HM15 and HM15 ' exhibited better broad spectrum antibacterial activity against both Escherichia coli and Staphylococcus aureus. Notably, the wound can be repaired rapidly by HM15 ' in 14 days. These multifunctional HMs might have an important prospect in clinical application.
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Affiliation(s)
- Na Li
- Wenzhou Institute of Biomaterials and Engineering, Ningbo Institute of Industrial Tehcnology (CNITECH), Chinese Academy of Sciences (CAS), Wenzhou, Zhejiang, 325011, China
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Sciences (CAS), Wenzhou, Zhejiang, 325011, China
| | - Xiao Yang
- Wenzhou Institute of Biomaterials and Engineering, Ningbo Institute of Industrial Tehcnology (CNITECH), Chinese Academy of Sciences (CAS), Wenzhou, Zhejiang, 325011, China
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Sciences (CAS), Wenzhou, Zhejiang, 325011, China
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
| | - Wen Liu
- Wenzhou Institute of Biomaterials and Engineering, Ningbo Institute of Industrial Tehcnology (CNITECH), Chinese Academy of Sciences (CAS), Wenzhou, Zhejiang, 325011, China
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Sciences (CAS), Wenzhou, Zhejiang, 325011, China
| | - Guanghui Xi
- Wenzhou Institute of Biomaterials and Engineering, Ningbo Institute of Industrial Tehcnology (CNITECH), Chinese Academy of Sciences (CAS), Wenzhou, Zhejiang, 325011, China
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Sciences (CAS), Wenzhou, Zhejiang, 325011, China
| | - Mingshan Wang
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Bin Liang
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Zhaipu Ma
- College of Life Sciences, Hebei University, Baoding, Hebei, 071002, China
| | - Yakai Feng
- Wenzhou Institute of Biomaterials and Engineering, Ningbo Institute of Industrial Tehcnology (CNITECH), Chinese Academy of Sciences (CAS), Wenzhou, Zhejiang, 325011, China
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Sciences (CAS), Wenzhou, Zhejiang, 325011, China
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
| | - Hao Chen
- Wenzhou Institute of Biomaterials and Engineering, Ningbo Institute of Industrial Tehcnology (CNITECH), Chinese Academy of Sciences (CAS), Wenzhou, Zhejiang, 325011, China
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Sciences (CAS), Wenzhou, Zhejiang, 325011, China
| | - Changcan Shi
- Wenzhou Institute of Biomaterials and Engineering, Ningbo Institute of Industrial Tehcnology (CNITECH), Chinese Academy of Sciences (CAS), Wenzhou, Zhejiang, 325011, China
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Sciences (CAS), Wenzhou, Zhejiang, 325011, China
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Yin J, Xiang C, Song X. Nanoencapsulation of psoralidin via chitosan and Eudragit S100 for enhancement of oral bioavailability. Int J Pharm 2016; 510:203-9. [PMID: 27154253 DOI: 10.1016/j.ijpharm.2016.05.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 03/29/2016] [Accepted: 05/02/2016] [Indexed: 10/21/2022]
Abstract
Psoralidin (PL) has recently been attracting more attention as a new anticancer agent candidate. Nevertheless, peroral administration of PL is largely challenged by its insoluble nature and intestinal efflux. This article aimed to develop a nanoencapsulation formulation of PL using water-soluble chitosan and Eudragit S100 and to evaluate its potential for bioavailability enhancement. PL-loaded nanocapsules (PL-NCs) were prepared by a solvent diffusion and high-pressure homogenization technique with Poloxamer 188 as a stabilizer. The resultant PL-NCs were approximately 132.5nm in particle size and possessed a high entrapment efficiency (98.1%). In vitro release showed that PL was released less from the nanocapsules due to electrostatic complexation. A lipolytic experiment demonstrated that our prepared PL-NCs were not degraded by lipase, in contrast with the most commonly used lipid nanoparticles. Furthermore, PL-NCs appeared to have less affinity for intestinal mucins. Following oral administration, the bioavailability of PL was significantly enhanced via the PL-NCs, with a value of 339.02% relative to the reference (suspensions). Excellent intestinal adhesion and transepithelial permeability accounted for the enhancement of oral bioavailability. Taken together, these results indicate that nanoencapsulation of PL with chitosan and Eudragit S100 is a promising strategy for improved PL oral delivery.
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Affiliation(s)
- Juntao Yin
- Department of Pharmaceutics, Huaihe Hospital Affiliated with Henan University, No. 1 Baobei Road, Kaifeng 475000, PR China
| | - Cuiyu Xiang
- Department of Pharmaceutics, Huaihe Hospital Affiliated with Henan University, No. 1 Baobei Road, Kaifeng 475000, PR China
| | - Xiaoyong Song
- Department of Pharmaceutics, Huaihe Hospital Affiliated with Henan University, No. 1 Baobei Road, Kaifeng 475000, PR China.
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