1
|
Liu W, Lewis SE, di Lorenzo M, Squires AM. Development of Redox-Active Lyotropic Lipid Cubic Phases for Biosensing Platforms. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:170-178. [PMID: 38113389 PMCID: PMC10786026 DOI: 10.1021/acs.langmuir.3c02307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 11/15/2023] [Accepted: 11/16/2023] [Indexed: 12/21/2023]
Abstract
Enzyme-based electrochemical biosensors play an important role in point-of-care diagnostics for personalized medicine. For such devices, lipid cubic phases (LCP) represent an attractive method to immobilize enzymes onto conductive surfaces with no need for chemical linking. However, research has been held back by the lack of effective strategies to stably co-immobilize enzymes with a redox shuttle that enhances the electrical connection between the enzyme redox center and the electrode. In this study, we show that a monoolein (MO) LCP system doped with an amphiphilic redox mediator (ferrocenylmethyl)dodecyldimethylammonium bromide (Fc12) can be used for enzyme immobilization to generate an effective biosensing platform. Small-angle X-ray scattering (SAXS) showed that MO LCP can incorporate Fc12 while maintaining the Pn3m symmetry morphology. Cyclic voltammograms of Fc12/MO showed quasi-reversible behavior, which implied that Fc12 was able to freely diffuse in the lipid membrane of LCP with a diffusion coefficient of 1.9 ± 0.2 × 10-8 cm2 s-1 at room temperature. Glucose oxidase (GOx) was then chosen as a model enzyme and incorporated into 0.2%Fc12/MO to evaluate the activity of the platform. GOx hosted in 0.2%Fc12/MO followed Michaelis-Menten kinetics toward glucose with a KM and Imax of 8.9 ± 0.5 mM and 1.4 ± 0.2 μA, respectively, and a linearity range of 2-17 mM glucose. Our results therefore demonstrate that GOx immobilized onto 0.2% Fc12/MO is a suitable platform for the electrochemical detection of glucose.
Collapse
Affiliation(s)
- Wanli Liu
- Department
of Chemistry, University of Bath, Bath BA2 7AY, U.K.
| | - Simon E. Lewis
- Department
of Chemistry, University of Bath, Bath BA2 7AY, U.K.
| | - Mirella di Lorenzo
- Department
of Chemical Engineering, University of Bath, Bath BA2 7AY, U.K.
| | - Adam M. Squires
- Department
of Chemistry, University of Bath, Bath BA2 7AY, U.K.
| |
Collapse
|
2
|
Fischer G. The chemistry of citrazinic acid (2,6-dihydroxyisonicotinic acid). ADVANCES IN HETEROCYCLIC CHEMISTRY 2023. [DOI: 10.1016/bs.aihch.2022.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
|
3
|
Sindhu RK, Najda A, Kaur P, Shah M, Singh H, Kaur P, Cavalu S, Jaroszuk-Sierocińska M, Rahman MH. Potentiality of Nanoenzymes for Cancer Treatment and Other Diseases: Current Status and Future Challenges. MATERIALS (BASEL, SWITZERLAND) 2021; 14:5965. [PMID: 34683560 PMCID: PMC8539628 DOI: 10.3390/ma14205965] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/23/2021] [Accepted: 09/30/2021] [Indexed: 01/08/2023]
Abstract
Studies from past years have observed various enzymes that are artificial, which are issued to mimic naturally occurring enzymes based on their function and structure. The nanozymes possess nanomaterials that resemble natural enzymes and are considered an innovative class. This innovative class has achieved a brilliant response from various developments and researchers owing to this unique property. In this regard, numerous nanomaterials are inspected as natural enzyme mimics for multiple types of applications, such as imaging, water treatment, therapeutics, and sensing. Nanozymes have nanomaterial properties occurring with an inheritance that provides a single substitute and multiple platforms. Nanozymes can be controlled remotely via stimuli including heat, light, magnetic field, and ultrasound. Collectively, these all can be used to increase the therapeutic as well as diagnostic efficacies. These nanozymes have major biomedical applications including cancer therapy and diagnosis, medical diagnostics, and bio sensing. We summarized and emphasized the latest progress of nanozymes, including their biomedical mechanisms and applications involving synergistic and remote control nanozymes. Finally, we cover the challenges and limitations of further improving therapeutic applications and provide a future direction for using engineered nanozymes with enhanced biomedical and diagnostic applications.
Collapse
Affiliation(s)
- Rakesh K. Sindhu
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (R.K.S.); (P.K.); (H.S.); (P.K.)
| | - Agnieszka Najda
- Department of Vegetable Crops and Medicinal Plants, University of Life Sciences in Lublin, 50A Doświadczalna St., 20-280 Lublin, Poland
| | - Prabhjot Kaur
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (R.K.S.); (P.K.); (H.S.); (P.K.)
| | - Muddaser Shah
- Department of Botany, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
| | - Harmanpreet Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (R.K.S.); (P.K.); (H.S.); (P.K.)
| | - Parneet Kaur
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (R.K.S.); (P.K.); (H.S.); (P.K.)
| | - Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, 410087 Oradea, Romania;
| | - Monika Jaroszuk-Sierocińska
- Institute of Soil Science and Environment Shaping, University of Life Sciences in Lublin, 7 Leszczyńskiego St., 20-069 Lublin, Poland;
| | - Md. Habibur Rahman
- Department of Pharmacy, Southeast University, Banani, Dhaka 1213, Bangladesh
- Department of Global Medical Science, Wonju College of Medicine, Yonsei University, Wonju 26426, Gangwon-do, Korea
| |
Collapse
|
4
|
Kafi AKM, Bin Kasri A, Jose R. Glucose Biosensor Based on Glucose Oxidase-Horseradish Peroxidase/Multiporous Tin Oxide (SnO₂) Modified Electrode. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2021; 21:3059-3064. [PMID: 33653480 DOI: 10.1166/jnn.2021.19283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The fabrication of a network of glucose oxidase-horseradish peroxidase/tin oxide (GOx-HRP/SnO₂), immobilized onto a glassy carbon electrode (GCE) and its utilization as a biosensor for glucose detection is reported. The network established with GOx-HRP/SnO₂ possess high sensitivity and stability by performing the electrocatalytic features in the sensing of glucose. The turbidity of fabrication had been scanned and analyzed using UV-vis spectroscopy. The morphology and composition of the fabricated GOx-HRP/SnO₂ networks were characterized by scanning electron microscopy (SEM). Cyclic voltammetry and amperometry were employed to study the electrochemical properties of the proposed biosensor. The effect of applied electrode potential and pH were systemically investigated. The biosensor responds to glucose at work potential values between -400 mV, and exhibited a lower detection limit (0.025 mM) and long linear range (0.25 to 7.0 mM), and was resistant to common interferences.
Collapse
Affiliation(s)
- A K M Kafi
- Faculty of Industrial Sciences & Technology, Universiti Malaysia Pahang, Kuantan 26300, Malaysia
| | - Aizam Bin Kasri
- Faculty of Industrial Sciences & Technology, Universiti Malaysia Pahang, Kuantan 26300, Malaysia
| | - Rajan Jose
- Faculty of Industrial Sciences & Technology, Universiti Malaysia Pahang, Kuantan 26300, Malaysia
| |
Collapse
|
5
|
Nanozymes for medical biotechnology and its potential applications in biosensing and nanotherapeutics. Biotechnol Lett 2020; 42:357-373. [PMID: 31950406 DOI: 10.1007/s10529-020-02795-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 01/09/2020] [Indexed: 02/08/2023]
Abstract
Recent past years have witnessed the development of several artificial enzymes, using different materials to mimic natural enzymes with respect to their structure and functions. The nanozymes are nanomaterials possessing similar characteristics to the natural enzymes and have emerged recently as an innovative class of artificial enzymes. The nanozymes have got remarkable attention from the researchers and notable developments have been achieved owing to their unique properties compared with natural enzymes and classic artificial enzymes. In this regard, several nanomaterials have been scrutinized so far to mimic different natural enzymes for wider applications ranging from imaging, sensing, water treatment, pollutant removal, and therapeutics. The applications of nanozymes in biomedicine research are fast-growing and various nanozymes have been implicated in diagnostic medicine, targeted cancer therapy. Such abilities make them an appropriate alternative for the development of affordable, sustainable and safe diagnostic as well as therapeutic agents.
Collapse
|
6
|
Platinum nanoparticles decorated graphene nanoribbon with eco-friendly unzipping process for electrochemical sensors. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2018.11.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
7
|
Matysiak-Brynda E, Sęk JP, Kasprzak A, Królikowska A, Donten M, Patrzalek M, Poplawska M, Nowicka AM. Reduced graphene oxide doping with nanometer-sized ferrocene moieties - New active material for glucose redox sensors. Biosens Bioelectron 2018; 128:23-31. [PMID: 30616214 DOI: 10.1016/j.bios.2018.12.037] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/12/2018] [Accepted: 12/14/2018] [Indexed: 02/08/2023]
Abstract
Herein, we present that the reduced graphene oxide (rGO) doped with nanometer-sized ferrocene moieties is a new, excellent active material for redox sensors. Two distinct approaches were utilized for the modification of rGO. The first method was based on the covalent decoration of rGO via the addition of azomethine ylide generated from the ferrocenecarboxaldehyde oxime. The second approach utilized the adsorption of 1,1'-ferrocenedicarboxylic acid on the graphene sheet via the π-π stacking. The morphology of the synthesized graphene materials was studied by application of microscopic techniques, whereas the Raman data allowed the characteristics of the tested materials in terms of their structural properties. The tested graphene materials doped with ferrocene moieties were used as a bioactive platform for glucose oxidase (GOx) immobilization. The enzyme was immobilized onto the rGO materials in two ways: (i) using a crosslinking agent - glutaraldehyde (GA) and (ii) by formation of the amide bonds between carboxylic groups of rGO-Fc(COOH)2 and amine groups from enzyme. Ferrocene moieties present at the graphene surface play the role of mediator in the electron transfer between the redox center of GOx and the electrode surface. The functionality of the constructed biosensors has been tested on real samples. The results of the recovery rates showed a satisfying degree of accuracy toward determination of glucose concentration. Examination of the potential interfering species has demonstrated favorable sensitivity and selectivity of the designed biosensor for the detection of glucose.
Collapse
Affiliation(s)
- Edyta Matysiak-Brynda
- Faculty of Chemistry, University of Warsaw, Pasteura 1 Str., PL-02-093 Warsaw, Poland.
| | - Jakub P Sęk
- Faculty of Chemistry, University of Warsaw, Pasteura 1 Str., PL-02-093 Warsaw, Poland
| | - Artur Kasprzak
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3 Str., PL-00-664 Warsaw, Poland
| | - Agata Królikowska
- Faculty of Chemistry, University of Warsaw, Pasteura 1 Str., PL-02-093 Warsaw, Poland
| | - Mikolaj Donten
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101 Str., 02-089 Warsaw, Poland
| | - Michał Patrzalek
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101 Str., 02-089 Warsaw, Poland
| | - Magdalena Poplawska
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3 Str., PL-00-664 Warsaw, Poland
| | - Anna M Nowicka
- Faculty of Chemistry, University of Warsaw, Pasteura 1 Str., PL-02-093 Warsaw, Poland
| |
Collapse
|
8
|
|
9
|
Chen HC, Chang CC, Yang KH, Mai FD, Tseng CL, Chen LY, Hwang BJ, Liu YC. Polypyrrole electrode with a greater electroactive surface electrochemically polymerized in plasmon-activated water. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2017.09.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
10
|
Nallal M, Anantha Iyengar G, Pill-Lee K. New Titanium Dioxide-Based Heterojunction Nanohybrid for Highly Selective Photoelectrochemical-Electrochemical Dual-Mode Sensors. ACS APPLIED MATERIALS & INTERFACES 2017; 9:37166-37183. [PMID: 28952309 DOI: 10.1021/acsami.7b10519] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A new titanium dioxide (TiO2)-based heterojunction nanohybrid (HJNH) composed of TiO2, graphene (G), poly[3-aminophenylboronic acid] (PAPBA), and gold nanoparticles (Au NPs) was synthesized and designated as TiO2(G) NW@PAPBA-Au HJNH. The TiO2(G) NW@PAPBA-Au HJNH possesses dual-mode signal photoelectrochemical (PEC) and electrochemical transduction capabilities to sense glucose and glycated hemoglobin (HbA1c) independently. The synthesis of the HJNH material involved two sequential stages: (i) simple electrospinning synthesis of G-embedded TiO2 nanowires [TiO2(G) NWs] and (ii) one-step synthesis of Au NP-dispersed PAPBA nanocomposite (NC) in the presence of TiO2(G) NWs. The as-synthesized TiO2(G) NW@PAPBA-Au HJNH was characterized by field emission scanning electron microscopy, field emission transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, Fourier transform infrared, thermogravimetric analysis, and UV-visible diffuse reflectance spectroscopy. A PEC platform was developed with TiO2(G) NW@PAPBA-Au HJNH for the selective detection of glucose without any enzyme auxiliary. The PEC glucose sensor presents an acceptable linear range (from 0.5 to 28 mM), good sensitivity (549.58 μA mM-1 cm-2), and low detection limit (0.11 mM), which are suited for diabetes glucose monitoring. Besides, the boronic acid groups in PAPBA were utilized as a host to capture HbA1c. We fabricated the electrochemical HbA1c sensor based on monitoring the electrocatalytic reduction current of hydrogen peroxide produced by HbA1c tethered to the sensor probe. The amperometric electrochemical sensor for HbA1c exhibited linear responses to HbA1c levels from 2.0 to 10% (with a detection limit of 0.17%). Notably, the performances of the fabricated glucose and HbA1c sensors are superior in the dual-signal transduction modes as compared to the literature, suggesting the significance of the newly designed bifunctional TiO2(G) NW@PAPBA-Au HJNH.
Collapse
Affiliation(s)
- Muthuchamy Nallal
- Department of Chemistry Education, ‡Research Institute of Advanced Energy Technology, and §Department of Nanoscience and Nanotechnology, Kyungpook National University , Daegu 41566, South Korea
| | - Gopalan Anantha Iyengar
- Department of Chemistry Education, ‡Research Institute of Advanced Energy Technology, and §Department of Nanoscience and Nanotechnology, Kyungpook National University , Daegu 41566, South Korea
| | - Kwang Pill-Lee
- Department of Chemistry Education, ‡Research Institute of Advanced Energy Technology, and §Department of Nanoscience and Nanotechnology, Kyungpook National University , Daegu 41566, South Korea
| |
Collapse
|
11
|
Sriwichai S, Janmanee R, Phanichphant S, Shinbo K, Kato K, Kaneko F, Yamamoto T, Baba A. Development of an electrochemical‐surface plasmon dual biosensor based on carboxylated conducting polymer thin films. J Appl Polym Sci 2017. [DOI: 10.1002/app.45641] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Saengrawee Sriwichai
- Department of Chemistry, Faculty of ScienceChiang Mai UniversityChiang Mai50200 Thailand
- Materials Science Research Center, Faculty of ScienceChiang Mai UniversityChiang Mai50200 Thailand
| | - Rapiphun Janmanee
- Department of Chemistry, Faculty of Science and TechnologyPibulsongkram Rajabhat UniversityPhitsanulok65000 Thailand
| | - Sukon Phanichphant
- Materials Science Research Center, Faculty of ScienceChiang Mai UniversityChiang Mai50200 Thailand
| | - Kazunari Shinbo
- Graduate School of Science and Technology and Center for Transdisciplinary ResearchNiigata UniversityNiigata950‐2181 Japan
| | - Keizo Kato
- Graduate School of Science and Technology and Center for Transdisciplinary ResearchNiigata UniversityNiigata950‐2181 Japan
| | - Futao Kaneko
- Graduate School of Science and Technology and Center for Transdisciplinary ResearchNiigata UniversityNiigata950‐2181 Japan
| | - Tadashi Yamamoto
- COI‐s Biofluid Biomarker Center, Institute for Research Collaboration and Promotion, Niigata UniversityNiigata950‐2181 Japan
| | - Akira Baba
- Graduate School of Science and Technology and Center for Transdisciplinary ResearchNiigata UniversityNiigata950‐2181 Japan
| |
Collapse
|
12
|
Gong C, Shen Y, Song Y, Wang L. On-Off Ratiometric Electrochemical Biosensor for Accurate Detection of Glucose. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.03.144] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
13
|
Song Y, Shen Y, Gong C, Chen J, Xu M, Wang L, Wang L. A Novel Glucose Biosensor Based on Tb@Mesoporous Metal-Organic Frameworks/Carbon Nanotube Nanocomposites. ChemElectroChem 2017. [DOI: 10.1002/celc.201600895] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Yonghai Song
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education, Key Laboratory of Chemical Biology, Jiangxi Province, College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 P.R. China
| | - Yuan Shen
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education, Key Laboratory of Chemical Biology, Jiangxi Province, College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 P.R. China
| | - Coucong Gong
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education, Key Laboratory of Chemical Biology, Jiangxi Province, College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 P.R. China
| | - Jingyi Chen
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education, Key Laboratory of Chemical Biology, Jiangxi Province, College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 P.R. China
| | - Mengli Xu
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education, Key Laboratory of Chemical Biology, Jiangxi Province, College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 P.R. China
| | - Linyu Wang
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education, Key Laboratory of Chemical Biology, Jiangxi Province, College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 P.R. China
| | - Li Wang
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education, Key Laboratory of Chemical Biology, Jiangxi Province, College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 P.R. China
| |
Collapse
|
14
|
Quantitative determination of trace hydrogen peroxide in the presence of sulfide using the Amplex Red/horseradish peroxidase assay. Anal Chim Acta 2017; 963:61-67. [DOI: 10.1016/j.aca.2017.02.033] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 02/08/2017] [Accepted: 02/24/2017] [Indexed: 01/07/2023]
|
15
|
Luong JH, Glennon JD, Gedanken A, Vashist SK. Achievement and assessment of direct electron transfer of glucose oxidase in electrochemical biosensing using carbon nanotubes, graphene, and their nanocomposites. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-2049-3] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
16
|
Smart Nanocomposites of Cu-Hemin Metal-Organic Frameworks for Electrochemical Glucose Biosensing. Sci Rep 2016; 6:36637. [PMID: 27811998 PMCID: PMC5095656 DOI: 10.1038/srep36637] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 10/14/2016] [Indexed: 02/07/2023] Open
Abstract
Herein, a smart porous material, Cu-hemin metal-organic-frameworks (Cu-hemin MOFs), was synthesized via assembling of Cu2+ with hemin to load glucose oxidase (GOD) for electrochemical glucose biosensing for the first time. The formation of the Cu-hemin MOFs was verified by scanning electron microscopy, X-ray powder diffraction, Fourier transform infrared spectroscopy, N2 adsorption/desorption isotherms, UV-vis absorption spectroscopy, fluorescence spectroscopy, thermal analysis and electrochemical techniques. The results indicated that the Cu-hemin MOFs showed a ball-flower-like hollow cage structure with a large specific surface area and a large number of mesopores. A large number of GOD molecules could be successfully loaded in the pores of Cu-hemin MOFs to keep their bioactivity just like in a solution. The GOD/Cu-hemin MOFs exhibited both good performance toward oxygen reduction reaction via Cu-hemin MOFs and catalytic oxidation of glucose via GOD, superior to other GOD/MOFs and GOD/nanomaterials. Accordingly, the performance of GOD/Cu-hemin MOFs-based electrochemical glucose sensor was enhanced greatly, showing a wide linear range from 9.10 μM to 36.0 mM and a low detection limit of 2.73 μM. Moreover, the sensor showed satisfactory results in detection of glucose in human serum. This work provides a practical design of new electrochemical sensing platform based on MOFs and biomolecules.
Collapse
|
17
|
Mao X, Tian W, Hatton TA, Rutledge GC. Advances in electrospun carbon fiber-based electrochemical sensing platforms for bioanalytical applications. Anal Bioanal Chem 2015; 408:1307-26. [DOI: 10.1007/s00216-015-9209-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 11/17/2015] [Accepted: 11/20/2015] [Indexed: 01/20/2023]
|