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Backiyalakshmi G, Snekhalatha U, Salvador AL. Recent advancements in non-invasive wearable electrochemical biosensors for biomarker analysis - A review. Anal Biochem 2024; 692:115578. [PMID: 38801938 DOI: 10.1016/j.ab.2024.115578] [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: 02/25/2024] [Revised: 05/22/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024]
Abstract
A biomarker is a molecular indicator that can be used to identify the presence or severity of a disease. It may be produced due to biochemical or molecular changes in normal biological processes. In some cases, the presence of a biomarker itself is an indication of the disease, while in other cases, the elevated or depleted level of a particular protein or chemical substance aids in identifying a disease. Biomarkers indicate the progression of the disease in response to therapeutic interventions. Identifying these biomarkers can assist in diagnosing the disease early and providing proper therapeutic treatment. In recent years, wearable electrochemical (EC) biosensors have emerged as an important tool for early detection due to their excellent selectivity, low cost, ease of fabrication, and improved sensitivity. There are several challenges in developing a fully integrated wearable sensor, such as device miniaturization, high power consumption, incorporation of a power source, and maintaining the integrity and durability of the biomarker for long-term continuous monitoring. This review covers the recent advancements in the fabrication techniques involved in device development, the types of sensing platforms utilized, different materials used, challenges, and future developments in the field of wearable biosensors.
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Affiliation(s)
- G Backiyalakshmi
- Department of Biomedical Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603203, Tamil Nadu, India
| | - U Snekhalatha
- Department of Biomedical Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603203, Tamil Nadu, India; College of Engineering, Architecture and Fine Arts, Batangas State University, Batangas, Philippines.
| | - Anela L Salvador
- College of Engineering, Architecture and Fine Arts, Batangas State University, Batangas, Philippines
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2
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Burratti L, Bertelà F, Sisani M, Di Guida I, Battocchio C, Iucci G, Prosposito P, Venditti I. Three-Dimensional Printed Filters Based on Poly(ethylene glycol) Diacrylate Hydrogels Doped with Silver Nanoparticles for Removing Hg(II) Ions from Water. Polymers (Basel) 2024; 16:1034. [PMID: 38674954 PMCID: PMC11054970 DOI: 10.3390/polym16081034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 04/02/2024] [Accepted: 04/07/2024] [Indexed: 04/28/2024] Open
Abstract
Nowadays, due to water pollution, more and more living beings are exposed to dangerous compounds, which can lead to them contracting diseases. The removal of contaminants (including heavy metals) from water is, therefore, a necessary aspect to guarantee the well-being of living beings. Among the most used techniques, the employment of adsorbent materials is certainly advantageous, as they are easy to synthesize and are cheap. In this work, poly(ethylene glycol) diacrylate (PEGDA) hydrogels doped with silver nanoparticles (AgNPs) for removing Hg(II) ions from water are presented. AgNPs were embedded in PEGDA-based matrices by using a photo-polymerizable solution. By exploiting a custom-made 3D printer, the filters were synthesized. The kinetics of interaction was studied, revealing that the adsorption equilibrium is achieved in 8 h. Subsequently, the adsorption isotherms of PEGDA doped with AgNPs towards Hg(II) ions were studied at different temperatures (4 °C, 25 °C, and 50 °C). In all cases, the best isotherm model was the Langmuir one (revealing that the chemisorption is the driving process and the most favorable one), with maximum adsorption capacities equal to 0.55, 0.57, and 0.61 mg/g, respectively. Finally, the removal efficiency was evaluated for the three temperatures, obtaining for 4 °C, 25 °C, and 50 °C the values 94%, 94%, and 86%, respectively.
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Affiliation(s)
- Luca Burratti
- Department of Sciences, Roma Tre University of Rome, Via della Vasca Navale 79, 00146 Rome, Italy; (F.B.); (C.B.); (G.I.); (I.V.)
| | - Federica Bertelà
- Department of Sciences, Roma Tre University of Rome, Via della Vasca Navale 79, 00146 Rome, Italy; (F.B.); (C.B.); (G.I.); (I.V.)
| | - Michele Sisani
- Prolabin & Tefarm S.r.l., 06134 Perugia, Italy; (M.S.); (I.D.G.)
| | - Irene Di Guida
- Prolabin & Tefarm S.r.l., 06134 Perugia, Italy; (M.S.); (I.D.G.)
| | - Chiara Battocchio
- Department of Sciences, Roma Tre University of Rome, Via della Vasca Navale 79, 00146 Rome, Italy; (F.B.); (C.B.); (G.I.); (I.V.)
| | - Giovanna Iucci
- Department of Sciences, Roma Tre University of Rome, Via della Vasca Navale 79, 00146 Rome, Italy; (F.B.); (C.B.); (G.I.); (I.V.)
| | - Paolo Prosposito
- Department of Industrial Engineering, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy;
| | - Iole Venditti
- Department of Sciences, Roma Tre University of Rome, Via della Vasca Navale 79, 00146 Rome, Italy; (F.B.); (C.B.); (G.I.); (I.V.)
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Al-Anazi S, Al-Omari A, Alanazi S, Marar A, Asad M, Alawaji F, Alwateid S. Artificial intelligence in respiratory care: Current scenario and future perspective. Ann Thorac Med 2024; 19:117-130. [PMID: 38766378 PMCID: PMC11100474 DOI: 10.4103/atm.atm_192_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 05/22/2024] Open
Abstract
BACKGROUND This narrative review aims to explore the current state and future perspective of artificial intelligence (AI) in respiratory care. The objective is to provide insights into the potential impact of AI in this field. METHODS A comprehensive analysis of relevant literature and research studies was conducted to examine the applications of AI in respiratory care and identify areas of advancement. The analysis included studies on remote monitoring, early detection, smart ventilation systems, and collaborative decision-making. RESULTS The obtained results highlight the transformative potential of AI in respiratory care. AI algorithms have shown promising capabilities in enabling tailored treatment plans based on patient-specific data. Remote monitoring using AI-powered devices allows for real-time feedback to health-care providers, enhancing patient care. AI algorithms have also demonstrated the ability to detect respiratory conditions at an early stage, leading to timely interventions and improved outcomes. Moreover, AI can optimize mechanical ventilation through continuous monitoring, enhancing patient comfort and reducing complications. Collaborative AI systems have the potential to augment the expertise of health-care professionals, leading to more accurate diagnoses and effective treatment strategies. CONCLUSION By improving diagnosis, AI has the potential to revolutionize respiratory care, treatment planning, and patient monitoring. While challenges and ethical considerations remain, the transformative impact of AI in this domain cannot be overstated. By leveraging the advancements and insights from this narrative review, health-care professionals and researchers can continue to harness the power of AI to improve patient outcomes and enhance respiratory care practices. IMPROVEMENTS Based on the findings, future research should focus on refining AI algorithms to enhance their accuracy, reliability, and interpretability. In addition, attention should be given to addressing ethical considerations, ensuring data privacy, and establishing regulatory frameworks to govern the responsible implementation of AI in respiratory care.
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Affiliation(s)
- Saad Al-Anazi
- Lead Clincial Appliaction AzeerTrade (Lowenstein Medical Company), Riyadh, Saudi Arabia
| | - Awad Al-Omari
- Department of Intensive Care, Dr. Sulaiman Al-Habib Group Hospitals, Riyadh, Saudi Arabia
| | - Safug Alanazi
- Intensivist, Al Hammadi Hospital, Riyadh, Saudi Arabia
| | - Aqeelah Marar
- Respiratory Care Administration, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Mohammed Asad
- Department of Emergency, Dr. Sulaiman Al-Habib Group Hospitals, Riyadh, Saudi Arabia
| | - Fadi Alawaji
- Ar Rass General Hospital, Qassim Health Cluster, Senior Laboratory Specialist, Rass Region, Qassim City, Saudi Arabia
| | - Salman Alwateid
- Respiratory Care Administration, King Fahad Medical City, Riyadh, Saudi Arabia
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Mariyam S, Upadhyay SK, Chakraborty K, Verma KK, Duhan JS, Muneer S, Meena M, Sharma RK, Ghodake G, Seth CS. Nanotechnology, a frontier in agricultural science, a novel approach in abiotic stress management and convergence with new age medicine-A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169097. [PMID: 38056665 DOI: 10.1016/j.scitotenv.2023.169097] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/24/2023] [Accepted: 12/02/2023] [Indexed: 12/08/2023]
Abstract
Climate change imposes various environmental stresses which substantially impact plant growth and productivity. Salinity, drought, temperature extremes, heavy metals, and nutritional imbalances are among several abiotic stresses contributing to high yield losses of crops in various parts of the world, resulting in food insecurity. Many interesting strategies are being researched in the attempt to improve plants' environmental stress tolerance. These include the application of nanoparticles, which have been found to improve plant function under stress situations. Nanotechnology will be a key driver in the upcoming agri-tech and pharmaceutical revolution, which promises a more sustainable, efficient, and resilient agricultural and medical system Nano-fertilizers can help plants utilise nutrients more efficiently by releasing nutrients slowly and sustainably. Plant physiology and nanomaterial features (such as size, shape, and charge) are important aspects influencing the impact on plant growth. Here, we discussed the most promising new opportunities and methodologies for using nanotechnology to increase the efficiency of critical inputs for crop agriculture, as well as to better manage biotic and abiotic stress. Potential development and implementation challenges are highlighted, emphasising the importance of designing suggested nanotechnologies using a systems approach. Finally, the strengths, flaws, possibilities, and risks of nanotechnology are assessed and analysed in order to present a comprehensive and clear picture of the nanotechnology potentials, as well as future paths for nano-based agri-food applications towards sustainability. Future research directions have been established in order to support research towards the long-term development of nano-enabled agriculture and evolution of pharmaceutical industry.
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Affiliation(s)
- Safoora Mariyam
- Department of Botany, University of Delhi, New Delhi 110007, Delhi, India
| | - Sudhir K Upadhyay
- Department of Environmental Science, V.B.S. Purvanchal University, Jaunpur 222003, Uttar Pradesh, India
| | | | - Krishan K Verma
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530007, Guangxi, China
| | - Joginder Singh Duhan
- Department of Biotechnology, Chaudhary Devi Lal University, Sirsa 125055, Harayana, India
| | - Sowbiya Muneer
- Department of Horticulture and Food Science, School of Aricultural Innovations and Advanced Learning, Vellore Institute of Technology, Vellore 632014, Tamil-Nadu, India
| | - Mukesh Meena
- Laboratory of Phytopatholoy and Microbial Biotechnology, Department of Botany, Mohanlal Sukhadia University, Udaipur 313001, Rajasthan, India
| | - Rajesh Kumar Sharma
- Department of Botany, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Gajanan Ghodake
- Department of Biological and Environmental Science, Dongguk University-Seoul, Ilsandong-gu, Goyang-si 10326, Gyeonggi-do, Republic of Korea
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Lorencova L, Kasak P, Kosutova N, Jerigova M, Noskovicova E, Vikartovska A, Barath M, Farkas P, Tkac J. MXene-based electrochemical devices applied for healthcare applications. Mikrochim Acta 2024; 191:88. [PMID: 38206460 PMCID: PMC10784403 DOI: 10.1007/s00604-023-06163-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024]
Abstract
The initial part of the review provides an extensive overview about MXenes as novel and exciting 2D nanomaterials describing their basic physico-chemical features, methods of their synthesis, and possible interfacial modifications and techniques, which could be applied to the characterization of MXenes. Unique physico-chemical parameters of MXenes make them attractive for many practical applications, which are shortly discussed. Use of MXenes for healthcare applications is a hot scientific discipline which is discussed in detail. The article focuses on determination of low molecular weight analytes (metabolites), high molecular weight analytes (DNA/RNA and proteins), or even cells, exosomes, and viruses detected using electrochemical sensors and biosensors. Separate chapters are provided to show the potential of MXene-based devices for determination of cancer biomarkers and as wearable sensors and biosensors for monitoring of a wide range of human activities.
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Affiliation(s)
- Lenka Lorencova
- Institute of Chemistry, Slovak Academy of Sciences, Dubravska cesta 5807/9, 845 38, Bratislava, Slovak Republic.
- Center for Advanced Materials, Qatar University, P.O. Box 2713, Doha, Qatar.
| | - Peter Kasak
- Center for Advanced Materials, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Natalia Kosutova
- Institute of Chemistry, Slovak Academy of Sciences, Dubravska cesta 5807/9, 845 38, Bratislava, Slovak Republic
| | - Monika Jerigova
- International Laser Center, Slovak Center of Scientific and Technical Information, Ilkovicova 3, 841 04, Bratislava, Slovak Republic
- Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University, Ilkovicova 6, Mlynska Dolina, 842 15, Bratislava, Slovak Republic
| | - Eva Noskovicova
- International Laser Center, Slovak Center of Scientific and Technical Information, Ilkovicova 3, 841 04, Bratislava, Slovak Republic
- Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University, Ilkovicova 6, Mlynska Dolina, 842 15, Bratislava, Slovak Republic
| | - Alica Vikartovska
- Institute of Chemistry, Slovak Academy of Sciences, Dubravska cesta 5807/9, 845 38, Bratislava, Slovak Republic
| | - Marek Barath
- Institute of Chemistry, Slovak Academy of Sciences, Dubravska cesta 5807/9, 845 38, Bratislava, Slovak Republic
| | - Pavol Farkas
- Institute of Chemistry, Slovak Academy of Sciences, Dubravska cesta 5807/9, 845 38, Bratislava, Slovak Republic
| | - Jan Tkac
- Institute of Chemistry, Slovak Academy of Sciences, Dubravska cesta 5807/9, 845 38, Bratislava, Slovak Republic.
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Mohebbi Najm Abad J, Farahbakhsh A, Mir M, Alizadeh R, Hekmatmanesh A. Urea-Self Powered Biosensors: A Predictive Evolutionary Model for Human Energy Harvesting. SENSORS (BASEL, SWITZERLAND) 2023; 23:8180. [PMID: 37837010 PMCID: PMC10575137 DOI: 10.3390/s23198180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 08/20/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023]
Abstract
The objective of this study is to create a reliable predictive model for the electrochemical performance of self-powered biosensors that rely on urea-based biological energy sources. Specifically, this model focuses on the development of a human energy harvesting model based on the utilization of urea found in sweat, which will enable the development of self-powered biosensors. In the process, the potential of urea hydrolysis in the presence of a urease enzyme is employed as a bioreaction for self-powered biosensors. The enzymatic reaction yields a positive potential difference that can be harnessed to power biofuel cells (BFCs) and act as an energy source for biosensors. This process provides the energy required for self-powered biosensors as biofuel cells (BFCs). To this end, initially, the platinum electrodes are modified by multi-walled carbon nanotubes to increase their conductivity. After stabilizing the urease enzyme on the surface of the platinum electrode, the amount of electrical current produced in the process is measured. The optimal design of the experiments is performed based on the Taguchi method to investigate the effect of urea concentration, buffer concentration, and pH on the generated electrical current. A general equation is employed as a prediction model and its coefficients calculated using an evolutionary strategy. Also, the evaluation of effective parameters is performed based on error rates. The obtained results show that the established model predicts the electrical current in terms of urea concentration, buffer concentration, and pH with high accuracy.
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Affiliation(s)
- Javad Mohebbi Najm Abad
- Department of Computer Engineering, Quchan Branch, Islamic Azad University, Quchan 9479176135, Iran;
| | - Afshin Farahbakhsh
- Department of Chemical Engineering, Quchan Branch, Islamic Azad University, Quchan 9479176135, Iran;
| | - Massoud Mir
- Department of Mechanical Engineering, Quchan University of Technology, Quchan 9477177870, Iran;
| | - Rasool Alizadeh
- Department of Mechanical Engineering, Quchan Branch, Islamic Azad University, Quchan 9479176135, Iran;
| | - Amin Hekmatmanesh
- Laboratory of Intelligent Machines, LUT University, 53850 Lappeenranta, Finland
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7
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Raza T, Tufail MK, Ali A, Boakye A, Qi X, Ma Y, Ali A, Qu L, Tian M. Wearable and Flexible Multifunctional Sensor Based on Laser-Induced Graphene for the Sports Monitoring System. ACS APPLIED MATERIALS & INTERFACES 2022; 14:54170-54181. [PMID: 36411520 DOI: 10.1021/acsami.2c14847] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The conversion of diverse polymeric substrates into laser-induced graphene (LIG) has recently emerged as a single-step method for the fabrication of patterned graphene-based wearable electronics with a wide range of applications in sensing, actuation, and energy storage. Laser-induced pyrolysis technology has many advantages over traditional graphene design: eco-friendly, designable patterning, roll-to-roll production, and controllable morphology. In this work, we designed wearable and flexible graphene-based strain and pressure sensors by laminating LIG from a commercial polyimide (PI) film. The as-prepared LIG was transferred onto a thin polydimethylsiloxane (PDMS) sheet, interwoven inside an elastic cotton sports fabric with the fabric glue as a wearable sensor. The single LIG/PDMS layer acts as a strain sensor, and a two-layer perpendicular stacking of LIG/PDMS (x and y laser-directed films) is designed for pressure sensing. This newly designed graphene textile (IGT) sensor performs four functions in volleyball sportswear, including volleyball reception detection, finger touch foul detection during blocking the ball from an opponent player, spike force measurements, and player position monitoring. An inexpensive sensor assists athletes in training and helps the coach formulate competition strategies.
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Affiliation(s)
- Tahir Raza
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Intelligent Wearable Engineering Research Center of Qingdao, Qingdao University, Qingdao, Shandong266071, P. R. China
| | - Muhammad Khurram Tufail
- College of Physics, Qingdao University, Qingdao, Shandong266071, P. R. China
- College of Material Science and Engineering, Qingdao University, Qingdao, Shandong266071, P. R. China
| | - Afzal Ali
- Ocean University of China, Qingdao, Shandong266071, P. R. China
| | - Andrews Boakye
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Intelligent Wearable Engineering Research Center of Qingdao, Qingdao University, Qingdao, Shandong266071, P. R. China
| | - Xiangjun Qi
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Intelligent Wearable Engineering Research Center of Qingdao, Qingdao University, Qingdao, Shandong266071, P. R. China
| | - Yulong Ma
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Intelligent Wearable Engineering Research Center of Qingdao, Qingdao University, Qingdao, Shandong266071, P. R. China
| | - Amjad Ali
- Materials Science & Engineering, Jiangsu University, Zhenjiang212013, China
| | - Lijun Qu
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Intelligent Wearable Engineering Research Center of Qingdao, Qingdao University, Qingdao, Shandong266071, P. R. China
| | - Mingwei Tian
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Intelligent Wearable Engineering Research Center of Qingdao, Qingdao University, Qingdao, Shandong266071, P. R. China
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Zhang T, Du X, Zhang Z. Advances in electrochemical sensors based on nanomaterials for the detection of lipid hormone. Front Bioeng Biotechnol 2022; 10:993015. [PMID: 36159660 PMCID: PMC9500180 DOI: 10.3389/fbioe.2022.993015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/12/2022] [Indexed: 11/17/2022] Open
Abstract
Lipid hormone is produced by highly differentiated endocrine cells and directly secretes into the blood circulation or tissue fluid to act as information transmission. It influences the physiological functions of the human body by controlling the metabolic processes of multiple tissue cells. Monitoring the levels of lipid hormone is of great importance for maintaining human health. The electrochemical sensor is considered as an ideal tool to detect lipid hormone owing to its advantages such as quick response, convenience and low economic costs. In recent 3 years, researchers have developed various electrochemical sensors for the detection of lipid hormone to improve their sensitivity or selectivity. The use of nanomaterials (such as carbon nanomaterials, precious metal and polymer) is a key research object and a breakthrough for improving the sensing performance of electrochemical sensors for detection of lipid hormone. This paper reviews and discusses the basic principle, nanomaterials, actuality and future development trend of electrochemical sensors for the detection of lipid hormone in the past 3 years.
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Affiliation(s)
| | - Xin Du
- *Correspondence: Xin Du, ; Zhenguo Zhang,
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9
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Sun Y, Teng J, Kuang Y, Yang S, Yang J, Mao H, Gu Z. Electroactive shape memory polyurethane composites reinforced with octadecyl isocyanate-functionalized multi-walled carbon nanotubes. Front Bioeng Biotechnol 2022; 10:964080. [PMID: 35910020 PMCID: PMC9337269 DOI: 10.3389/fbioe.2022.964080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 06/28/2022] [Indexed: 11/13/2022] Open
Abstract
Shape memory polymers (SMPs) have a wide range of potential applications in many fields. In particular, electrically driven SMPs have attracted increasing attention due to their unique electrical deformation behaviors. Carbon nanotubes (CNTs) are often used as SMP conductive fillers because of their excellent electrical conductivities. However, raw CNTs do not disperse into the polymer matrix well. This strictly limits their use. In this study, to improve their dispersion performance characteristics in the polymer matrix, hydroxylated multi-walled carbon nanotubes (MWCNT-OHs) were functionalized with octadecyl isocyanate (i-MWCNTs). Polyurethane with shape memory properties (SMPU) was synthesized using polycaprolactone diol (PCL-diol), hexamethylene diisocyanate (HDI), and 1,4-butanediol (BDO) at a 1:5:4 ratio. Then, electroactive shape memory composites were developed by blending SMPU with i-MWCNTs to produce SMPU/i-MWCNTs. The functionalized i-MWCNTs exhibited better dispersibility characteristics in organic solvents and SMPU composites than the MWCNT-OHs. The addition of i-MWCNTs reduced the crystallinity of SMPU without affecting the original chemical structure. In addition, the hydrogen bond index and melting temperature of the SMPU soft segment decreased significantly, and the thermal decomposition temperatures of the composites increased. The SMPU/i-MWCNT composites exhibited conductivity when the i-MWCNT content was 0.5 wt%. This conductivity increased with the i-MWCNT content. In addition, when the i-MWCNT content exceeded 1 wt%, the composite temperature could increase beyond 60°C within 140 s and the temporary structure could be restored to its initial state within 120 s using a voltage of 30 eV. Therefore, the functionalized CNTs exhibit excellent potential for use in the development of electroactive shape memory composites, which may be used in flexible electronics and other fields.
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Affiliation(s)
- Yadong Sun
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, College of Materials Science and Engineering, Nanjing Tech University, Nanjing, China
| | - Jiachi Teng
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, College of Materials Science and Engineering, Nanjing Tech University, Nanjing, China
| | - Yi Kuang
- College of Chemical and Materials Engineering, Zhejiang A&F University, Lin’an, China
| | - Shengxiang Yang
- College of Chemical and Materials Engineering, Zhejiang A&F University, Lin’an, China
| | - Jiquan Yang
- Nanjing Industry Institute for Advanced Intelligent Equipment, Nanjing, China
| | - Hongli Mao
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, College of Materials Science and Engineering, Nanjing Tech University, Nanjing, China
- NJTech-BARTY Joint Research Center for Innovative Medical Technology, Nanjing, China
- *Correspondence: Hongli Mao,
| | - Zhongwei Gu
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, College of Materials Science and Engineering, Nanjing Tech University, Nanjing, China
- NJTech-BARTY Joint Research Center for Innovative Medical Technology, Nanjing, China
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10
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Mei Y, Lin X, He C, Zeng W, Luo Y, Liu C, Liu Z, Yang M, Kuang Y, Huang Q. Recent Progresses in Electrochemical DNA Biosensors for SARS-CoV-2 Detection. Front Bioeng Biotechnol 2022; 10:952510. [PMID: 35910031 PMCID: PMC9335408 DOI: 10.3389/fbioe.2022.952510] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 06/10/2022] [Indexed: 12/16/2022] Open
Abstract
Coronavirus disease 19 (COVID-19) is still a major public health concern in many nations today. COVID-19 transmission is now controlled mostly through early discovery, isolation, and therapy. Because of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the contributing factor to COVID-19, establishing timely, sensitive, accurate, simple, and budget detection technologies for the SARS-CoV-2 is urgent for epidemic prevention. Recently, several electrochemical DNA biosensors have been developed for the rapid monitoring and detection of SARS-CoV-2. This mini-review examines the latest improvements in the detection of SARS-COV-2 utilizing electrochemical DNA biosensors. Meanwhile, this mini-review summarizes the problems faced by the existing assays and puts an outlook on future trends in the development of new assays for SARS-CoV-2, to provide researchers with a borrowing role in the generation of different assays.
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Affiliation(s)
- Yanqiu Mei
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Key Laboratory of Biomaterials and Biofabrication in Tissue Engineering of Jiangxi Province, Key Laboratory of Biomedical Sensors of Ganzhou, School of Public Health and Health Management, School of Medical and Information Engineering, Gannan Medical University, Ganzhou, China
| | - Xiaofeng Lin
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Key Laboratory of Biomaterials and Biofabrication in Tissue Engineering of Jiangxi Province, Key Laboratory of Biomedical Sensors of Ganzhou, School of Public Health and Health Management, School of Medical and Information Engineering, Gannan Medical University, Ganzhou, China
- Oil-Tea in Medical Health Care and Functional Product Development Engineering Research Center in Jiangxi, The Science Research Center, School of Pharmacy, Gannan Medical University, Ganzhou, China
- *Correspondence: Xiaofeng Lin, ; Qitong Huang,
| | - Chen He
- Oil-Tea in Medical Health Care and Functional Product Development Engineering Research Center in Jiangxi, The Science Research Center, School of Pharmacy, Gannan Medical University, Ganzhou, China
| | - Weijia Zeng
- Oil-Tea in Medical Health Care and Functional Product Development Engineering Research Center in Jiangxi, The Science Research Center, School of Pharmacy, Gannan Medical University, Ganzhou, China
| | - Yan Luo
- Oil-Tea in Medical Health Care and Functional Product Development Engineering Research Center in Jiangxi, The Science Research Center, School of Pharmacy, Gannan Medical University, Ganzhou, China
| | - Chenghao Liu
- Oil-Tea in Medical Health Care and Functional Product Development Engineering Research Center in Jiangxi, The Science Research Center, School of Pharmacy, Gannan Medical University, Ganzhou, China
| | - Zhehao Liu
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Key Laboratory of Biomaterials and Biofabrication in Tissue Engineering of Jiangxi Province, Key Laboratory of Biomedical Sensors of Ganzhou, School of Public Health and Health Management, School of Medical and Information Engineering, Gannan Medical University, Ganzhou, China
- Oil-Tea in Medical Health Care and Functional Product Development Engineering Research Center in Jiangxi, The Science Research Center, School of Pharmacy, Gannan Medical University, Ganzhou, China
| | - Min Yang
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Key Laboratory of Biomaterials and Biofabrication in Tissue Engineering of Jiangxi Province, Key Laboratory of Biomedical Sensors of Ganzhou, School of Public Health and Health Management, School of Medical and Information Engineering, Gannan Medical University, Ganzhou, China
- Oil-Tea in Medical Health Care and Functional Product Development Engineering Research Center in Jiangxi, The Science Research Center, School of Pharmacy, Gannan Medical University, Ganzhou, China
| | - Ying Kuang
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Key Laboratory of Biomaterials and Biofabrication in Tissue Engineering of Jiangxi Province, Key Laboratory of Biomedical Sensors of Ganzhou, School of Public Health and Health Management, School of Medical and Information Engineering, Gannan Medical University, Ganzhou, China
- Oil-Tea in Medical Health Care and Functional Product Development Engineering Research Center in Jiangxi, The Science Research Center, School of Pharmacy, Gannan Medical University, Ganzhou, China
| | - Qitong Huang
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Key Laboratory of Biomaterials and Biofabrication in Tissue Engineering of Jiangxi Province, Key Laboratory of Biomedical Sensors of Ganzhou, School of Public Health and Health Management, School of Medical and Information Engineering, Gannan Medical University, Ganzhou, China
- Oil-Tea in Medical Health Care and Functional Product Development Engineering Research Center in Jiangxi, The Science Research Center, School of Pharmacy, Gannan Medical University, Ganzhou, China
- *Correspondence: Xiaofeng Lin, ; Qitong Huang,
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A Review on Flexible Electrochemical Biosensors to Monitor Alcohol in Sweat. BIOSENSORS 2022; 12:bios12040252. [PMID: 35448313 PMCID: PMC9026542 DOI: 10.3390/bios12040252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 11/17/2022]
Abstract
The continued focus on improving the quality of human life has encouraged the development of increasingly efficient, durable, and cost-effective products in healthcare. Over the last decade, there has been substantial development in the field of technical and interactive textiles that combine expertise in electronics, biology, chemistry, and physics. Most recently, the creation of textile biosensors capable of quantifying biometric data in biological fluids is being studied, to detect a specific disease or the physical condition of an individual. The ultimate goal is to provide access to medical diagnosis anytime and anywhere. Presently, alcohol is considered the most commonly used addictive substance worldwide, being one of the main causes of death in road accidents. Thus, it is important to think of solutions capable of minimizing this public health problem. Alcohol biosensors constitute an excellent tool to aid at improving road safety. Hence, this review explores concepts about alcohol biomarkers, the composition of human sweat and the correlation between alcohol and blood. Different components and requirements of a biosensor are reviewed, along with the electrochemical techniques to evaluate its performance, in addition to construction techniques of textile-based biosensors. Special attention is given to the determination of biomarkers that must be low cost and fast, so the use of biomimetic materials to recognize and detect the target analyte is turning into an attractive option to improve electrochemical behavior.
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