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Ji Z, Wang D, Wang J. A microfluidic ratiometric electrochemical aptasensor for highly sensitive and selective detection of 3,3',4,4'-tetrachlorobiphenyl. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:4160-4167. [PMID: 38874006 DOI: 10.1039/d4ay00830h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
This study proposes a strategy using a microfluidic ratiometric electrochemical aptasensor to detect PCB77 with excellent sensitivity and specificity. This sensing platform combines a microfluidic chip, a wireless integrated circuit system for aptamer-based electrochemical detection, and a mobile phone control terminal for parameter configuration, identification, observation, and wireless data transfer. The sensing method utilizes a cDNA (MB-COOH-cDNA-SH) that is labelled with the redox probe Methylene Blue (MB) at the 5' end and has a thiol group at the 3' end. Additionally, it utilizes a single strand PCB aptamer that has been modified with ferrocenes at the 3' end (aptamer-Fc). Through gold-thiol binding, the labelled probe of MB-COOH-cDNA-SH was self-assembled onto the surface of an Au/Nb2CTx/GO modified electrode. On exposure to aptamer-Fc, it will hybridize with MB-COOH-cDNA-SH to form a stable double-stranded structure on the electrode surface. When PCB77 is present, aptamer-Fc binds specifically to the target, enabling the double-stranded DNA to unwind. Such variation caused changes in the differential pulse voltammetry (DPV) peak currents of both MB and Fc. A substantial improvement is observed in the ratio between the two DPV peaks. Under the optimum experimental conditions, this assay has a response that covers the 0.0001 to 1000 ng mL-1 PCB77 concentration range, and the detection limit is 1.56 × 10-5 ng mL-1. The integration of a ratiometric electrochemical aptasensor with designed microfluidic and integrated devices in this work is an innovative and promising approach that offers an efficient platform for on-site applications.
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Affiliation(s)
- Zhiheng Ji
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, China.
| | - Dou Wang
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, China.
| | - Juan Wang
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, China.
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2
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Huang Y, Wang X, Luo B, Jin P, Zheng Y, Xu C, Wu Z. MXene-NH 2/chitosan hemostatic sponges for rapid wound healing. Int J Biol Macromol 2024; 260:129489. [PMID: 38242399 DOI: 10.1016/j.ijbiomac.2024.129489] [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: 10/03/2023] [Revised: 12/14/2023] [Accepted: 01/12/2024] [Indexed: 01/21/2024]
Abstract
Effective control of wound bleeding and sustained promotion of wound healing remain a major challenge for hemostatic materials. In this study, the hemostatic sponge with controllable antibacterial and adjustable continuous promotion of wound healing (CMNCu) was prepared by chitosan, aminated MXene and copper ion. Interestingly, the internal topological point-line-surface interaction endowed the CMN-Cu sponge longitudinal staggered tubular porous microstructure, combined with the lipophilic properties obtained by modified MXene, which greatly improved its flexibility, wet elasticity and blood enrichment capacity. In addition, the sponge achieved controlled release of active ingredients, which made it present highly effective antibacterial activity and long-lasting ability to promote wound healing. In vitro and in vivo experiments confirmed that CMN-Cu sponge presented high-efficient hemostatic performance. Last but not least, a series of cell experiments showed that the CMN-Cu sponge had excellent safety as a hemostatic material.
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Affiliation(s)
- Yanan Huang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaotong Wang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Bodan Luo
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Peng Jin
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Yonghua Zheng
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Changliang Xu
- Jiangsu Collaborative Innovation Center of Traditional Chinese Medicine Prevention and Treatment of Tumor, Nanjing University of Chinese Medicine, Jiangsu 210023, China.
| | - Zhengguo Wu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
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Das P, Marvi PK, Ganguly S, Tang XS, Wang B, Srinivasan S, Rajabzadeh AR, Rosenkranz A. MXene-Based Elastomer Mimetic Stretchable Sensors: Design, Properties, and Applications. NANO-MICRO LETTERS 2024; 16:135. [PMID: 38411801 PMCID: PMC10899156 DOI: 10.1007/s40820-024-01349-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 01/09/2024] [Indexed: 02/28/2024]
Abstract
Flexible sensors based on MXene-polymer composites are highly prospective for next-generation wearable electronics used in human-machine interfaces. One of the motivating factors behind the progress of flexible sensors is the steady arrival of new conductive materials. MXenes, a new family of 2D nanomaterials, have been drawing attention since the last decade due to their high electronic conductivity, processability, mechanical robustness and chemical tunability. In this review, we encompass the fabrication of MXene-based polymeric nanocomposites, their structure-property relationship, and applications in the flexible sensor domain. Moreover, our discussion is not only limited to sensor design, their mechanism, and various modes of sensing platform, but also their future perspective and market throughout the world. With our article, we intend to fortify the bond between flexible matrices and MXenes thus promoting the swift advancement of flexible MXene-sensors for wearable technologies.
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Affiliation(s)
- Poushali Das
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L8, Canada
| | - Parham Khoshbakht Marvi
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L8, Canada
| | - Sayan Ganguly
- Department of Chemistry and Waterloo Institute for Nanotechnology (WIN), University of Waterloo, 200 University Ave West, Waterloo, ON, Canada
- Centre for Eye and Vision Research (CEVR), 17W Hong Kong Science Park, Shatin, Hong Kong, People's Republic of China
| | - Xiaowu Shirley Tang
- Department of Chemistry and Waterloo Institute for Nanotechnology (WIN), University of Waterloo, 200 University Ave West, Waterloo, ON, Canada
- Centre for Eye and Vision Research (CEVR), 17W Hong Kong Science Park, Shatin, Hong Kong, People's Republic of China
| | - Bo Wang
- Chair of Functional Materials, Department of Materials Science and Engineering, Saarland University, Saarbrücken, Germany
| | - Seshasai Srinivasan
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L8, Canada.
- W Booth School of Engineering Practice and Technology, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L7, Canada.
| | - Amin Reza Rajabzadeh
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L8, Canada.
- W Booth School of Engineering Practice and Technology, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L7, Canada.
| | - Andreas Rosenkranz
- Department for Chemical Engineering, Biotechnology and Materials, University of Chile, Santiago, Chile.
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Radmanesh F, Tena A, Sudhölter EJR, Hempenius MA, Benes NE. Nonaqueous Interfacial Polymerization-Derived Polyphosphazene Films for Sieving or Blocking Hydrogen Gas. ACS APPLIED POLYMER MATERIALS 2023; 5:1955-1964. [PMID: 36935655 PMCID: PMC10012169 DOI: 10.1021/acsapm.2c02022] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
A series of cyclomatrix polyphosphazene films have been prepared by nonaqueous interfacial polymerization (IP) of small aromatic hydroxyl compounds in a potassium hydroxide dimethylsulfoxide solution and hexachlorocyclotriphosphazene in cyclohexane on top of ceramic supports. Via the amount of dissolved potassium hydroxide, the extent of deprotonation of the aromatic hydroxyl compounds can be changed, in turn affecting the molecular structure and permselective properties of the thin polymer networks ranging from hydrogen/oxygen barriers to membranes with persisting hydrogen permselectivities at high temperatures. Barrier films are obtained with a high potassium hydroxide concentration, revealing permeabilities as low as 9.4 × 10-17 cm3 cm cm-2 s-1 Pa-1 for hydrogen and 1.1 × 10-16 cm3 cm cm-2 s-1 Pa-1 for oxygen. For films obtained with a lower concentration of potassium hydroxide, single gas permeation experiments reveal a molecular sieving behavior, with a hydrogen permeance of around 10-8 mol m-2 s-1 Pa-1 and permselectivities of H2/N2 (52.8), H2/CH4 (100), and H2/CO2 (10.1) at 200 °C.
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Affiliation(s)
- Farzaneh Radmanesh
- Membrane
Science and Technology Cluster, Faculty of Science and Technology,
MESA Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Alberto Tena
- The
European Membrane Institute Twente, Faculty of Science and Technology, University of Twente,
P.O. Box 217, 7500 AE Enschede, The Netherlands
- Surfaces
and Porous Materials (SMAP), Associated Research Unit to CSIC, UVainnova
Bldg, Po de Belén 11 and Institute of Sustainable Processes
(ISP), Dr. Mergelina S/n, University of
Valladolid, 47071 Valladolid, Spain
| | - Ernst J. R. Sudhölter
- Membrane
Science and Technology Cluster, Faculty of Science and Technology,
MESA Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
- Organic
Materials & Interfaces, Department of Chemical Engineering, Faculty
of Applied Sciences, Delft University of
Technology, 2629 HZ Delft, The Netherlands
| | - Mark A. Hempenius
- Sustainable
Polymer Chemistry, Faculty of Science and Technology, MESA Institute for Nanotechnology, University
of Twente, P.O. Box 217, 7500, AE Enschede, The Netherlands
| | - Nieck E. Benes
- Membrane
Science and Technology Cluster, Faculty of Science and Technology,
MESA Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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Salahuddin Z, Ahmed M, Farrukh S, Ali A, Javed S, Hussain A, Younas M, Shakir S, Bokhari A, Ahmad S, Hanbazazah AS. Challenges and issues with the performance of boron nitride rooted membrane for gas separation. CHEMOSPHERE 2022; 308:136002. [PMID: 35973505 DOI: 10.1016/j.chemosphere.2022.136002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 07/25/2022] [Accepted: 08/07/2022] [Indexed: 06/15/2023]
Abstract
Various fillers such as zeolites, metal-organic framework, carbon, metal framework, graphene, and covalent organic framework have been incorporated into the polymers. However, these materials are facing issues such as incompatibility with the polymer matrix, which leads to the formation of non-selective voids and thus, reduces the gas separation properties. Recent studies show that hexagonal boron nitride (h-BN) possesses attractive characteristics such as high aspect ratio, good compatibility with polymer materials, enhanced gas barrier performance, and improved mechanical properties, which could make h-BN the potential candidate to replace conventional fillers. The synthesis of materials and membranes is the subject of this review, which focuses on recent developments and ongoing problems. Additionally, a summary of the mathematical models that were utilised to forecast how well polymer composites would perform in gas separation is provided. It was found in the previous studies that tortuosity is the governing factor for the determination of the effectiveness of a nanofiller as a gas barrier enhancer in polymer matrices. The shape of the nanofiller particles and sheets, disorientation and distribution of the nanofillers within the polymer matrix, state of aggregation and rate of reaggregation of the nanofiller particles, as well as the compatibility of the nanofiller with the polymer matrix all played a significant role in determining how well a particular nanofiller will perform in enhancing the gas barrier properties of the nanocomposites. For this purpose, this review has been focused not only on the experimentation work but also on the effect of tortuosity, exfoliation quality, compatibility, disorientation, and reaggregation of nanofillers.
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Affiliation(s)
- Zarrar Salahuddin
- School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, 44000, Pakistan
| | - Marghoob Ahmed
- School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, 44000, Pakistan
| | - Sarah Farrukh
- School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, 44000, Pakistan.
| | - Abulhassan Ali
- Department of Chemical Engineering, University of Jeddah, Jeddah, Saudi Arabia.
| | - Sofia Javed
- School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, 44000, Pakistan
| | - Arshad Hussain
- Department of Chemical and Energy Engineering, Faculty of Mechanical, Chemical, Materials and Mining Engineering, Pak-Austria Fachhochschule Institute of Applied Sciences and Technology (PAF-IAST), Haripur, 22621, Hazara, Khyber Pakhtunkhwa, Pakistan
| | - Mohammad Younas
- Department of Chemical Engineering, University of Engineering and Technology, Peshawar, University Campus, Peshawar, 25120, Khyber Pakhtunkhwa, Pakistan
| | - Sehar Shakir
- U.S.- Pakistan Center for Advance Studies in Energy (USPCAS-E), National University of Sciences and Technology (NUST), H12, Islamabad, Pakistan
| | - Awais Bokhari
- Chemical Engineering Department, COMSATS University Islamabad (CUI), Lahore Campus, Lahore, Punjab, 54000, Pakistan
| | - Sher Ahmad
- School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, 44000, Pakistan
| | - Abdulkader S Hanbazazah
- Department of Industrial and Systems Engineering, University of Jeddah, Jeddah, Saudi Arabia.
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Zhang Q, Fan R, Cheng W, Ji P, Sheng J, Liao Q, Lai H, Fu X, Zhang C, Li H. Synthesis of Large-Area MXenes with High Yields through Power-Focused Delamination Utilizing Vortex Kinetic Energy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2202748. [PMID: 35975421 PMCID: PMC9534978 DOI: 10.1002/advs.202202748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/15/2022] [Indexed: 06/15/2023]
Abstract
Evaluating the delamination process in the synthesis of MXenes (2D transition metal carbides and nitrides) is critical for their development and applications. However, the preparation of large defect-free MXene flakes with high yields is challenging. Here, a power-focused delamination (PFD) strategy is demonstrated that can enhance both the delamination efficiency and yield of large Ti3 C2 Tx MXene nanosheets through repetitive precipitation and vortex shaking processes. Following this protocol, a colloidal concentration of 20.4 mg mL-1 of the Ti3 C2 Tx MXene can be achieved after five PFD cycles, and the yield of the basal-plane-defect-free Ti3 C2 Tx nanosheets reaches 61.2%, which is 6.4-fold higher than that obtained using the sonication-exfoliation method. Both nanometer-thin devices and self-supporting films exhibit excellent electrical conductivities (≈25 000 and 8260 S cm-1 for a 1.8 nm thick monolayer and 11 µm thick film, respectively). Hydrodynamic simulations reveal that the PFD method can efficiently concentrate the shear stress on the surface of the unexfoliated material, leading to the exfoliation of the nanosheets. The PFD-synthesized large MXene nanosheets exhibit superior electrical conductivities and electromagnetic shielding (shielding effectiveness per unit volume: 35 419 dB cm2 g-1 ). Therefore, the PFD strategy provides an efficient route for the preparation of high-performance single-layer MXene nanosheets with large areas and high yields.
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Affiliation(s)
- Qingxiao Zhang
- Shanghai Key Laboratory of Rare Earth Functional Materials and Education Ministry Key Laboratory of Resource ChemistryShanghai Normal UniversityShanghai200234P. R. China
| | - Runze Fan
- Shanghai Key Laboratory of Rare Earth Functional Materials and Education Ministry Key Laboratory of Resource ChemistryShanghai Normal UniversityShanghai200234P. R. China
| | - Weihua Cheng
- Shanghai Key Laboratory of Rare Earth Functional Materials and Education Ministry Key Laboratory of Resource ChemistryShanghai Normal UniversityShanghai200234P. R. China
| | - Peiyi Ji
- Shanghai Key Laboratory of Rare Earth Functional Materials and Education Ministry Key Laboratory of Resource ChemistryShanghai Normal UniversityShanghai200234P. R. China
| | - Jie Sheng
- Shanghai Key Laboratory of Rare Earth Functional Materials and Education Ministry Key Laboratory of Resource ChemistryShanghai Normal UniversityShanghai200234P. R. China
| | - Qingliang Liao
- Shanghai Key Laboratory of Rare Earth Functional Materials and Education Ministry Key Laboratory of Resource ChemistryShanghai Normal UniversityShanghai200234P. R. China
| | - Huirong Lai
- Shanghai Key Laboratory of Rare Earth Functional Materials and Education Ministry Key Laboratory of Resource ChemistryShanghai Normal UniversityShanghai200234P. R. China
| | - Xueli Fu
- Shanghai Key Laboratory of Rare Earth Functional Materials and Education Ministry Key Laboratory of Resource ChemistryShanghai Normal UniversityShanghai200234P. R. China
| | - Chenhao Zhang
- Shanghai Key Laboratory of Rare Earth Functional Materials and Education Ministry Key Laboratory of Resource ChemistryShanghai Normal UniversityShanghai200234P. R. China
| | - Hui Li
- Shanghai Key Laboratory of Rare Earth Functional Materials and Education Ministry Key Laboratory of Resource ChemistryShanghai Normal UniversityShanghai200234P. R. China
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7
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Zhou X, Hao Y, Li Y, Peng J, Wang G, Ong W, Li N. MXenes: An emergent materials for packaging platforms and looking beyond. NANO SELECT 2022. [DOI: 10.1002/nano.202200023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Xing Zhou
- Faculty of Printing Packaging Engineering and Digital Media Technology Xi'an University of Technology Xi'an P. R. China
| | - Yaya Hao
- Faculty of Printing Packaging Engineering and Digital Media Technology Xi'an University of Technology Xi'an P. R. China
| | - Yaxin Li
- Faculty of Printing Packaging Engineering and Digital Media Technology Xi'an University of Technology Xi'an P. R. China
| | - Jiahe Peng
- Key Laboratory of Silicate Materials for Architectures & Research Center for Materials Genome Engineering Wuhan University of Technology Hubei P. R. China
| | - Guosheng Wang
- Faculty of Printing Packaging Engineering and Digital Media Technology Xi'an University of Technology Xi'an P. R. China
| | - Wee‐Jun Ong
- School of Energy and Chemical Engineering Xiamen University Malaysia Selangor Darul Ehsan Malaysia
| | - Neng Li
- Key Laboratory of Silicate Materials for Architectures & Research Center for Materials Genome Engineering Wuhan University of Technology Hubei P. R. China
- Shenzhen Research Institute of Wuhan University of Technology Shenzhen China
- School of Materials Science and Engineering Zhengzhou University Zhengzhou China
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