Evolution of electrospun nanofibers fluorescent and colorimetric sensors for environmental toxicants, pH, temperature, and cancer cells – A review with insights on applications

Venkatesan, Manikandan; Veeramuthu, Loganathan; Liang, Fang‐Cheng; Chen, Wei-Cheng; Cho, Chia‐Jung; Chen, Chin‐Wen; Chen, Jung‐Yao; Yan, Yan; Chang, Shang‐Hung; Kuo, Chi‐Ching

doi:10.1016/j.cej.2020.125431

Cited by 105 publications

(41 citation statements)

References 221 publications

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“…Besides colorimetric sensors which are often applied in sweat analysis [131][132][133][134][135], there are also other types of sensors based on measuring the electrical properties of specifically functionalized conductive fibers, yarns or textile fabrics, which are changed upon contact of the functionalized sensor with a defined molecule, etc. [136][137][138][139][140].…”

Section: Sweat Examinationmentioning

confidence: 99%

Textile-Based Sensors for Biosignal Detection and Monitoring

Błachowicz

Ehrmann²,

Ehrmann

2021

Sensors

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Biosignals often have to be detected in sports or for medical reasons. Typical biosignals are pulse and ECG (electrocardiogram), breathing, blood pressure, skin temperature, oxygen saturation, bioimpedance, etc. Typically, scientists attempt to measure these biosignals noninvasively, i.e., with electrodes or other sensors, detecting electric signals, measuring optical or chemical information. While short-time measurements or monitoring of patients in a hospital can be performed by systems based on common rigid electrodes, usually containing a large amount of wiring, long-term measurements on mobile patients or athletes necessitate other equipment. Here, textile-based sensors and textile-integrated data connections are preferred to avoid skin irritations and other unnecessary limitations of the monitored person. In this review, we give an overview of recent progress in textile-based electrodes for electrical measurements and new developments in textile-based chemical and other sensors for detection and monitoring of biosignals.

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Section: Sweat Examinationmentioning

confidence: 99%

Textile-Based Sensors for Biosignal Detection and Monitoring

Błachowicz

Ehrmann²,

Ehrmann

2021

Sensors

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“…We herein review the challenging aspects of designing highly responsive sensors through facile synthetic strategies, sensor fabrication, mechanistic aspects, various sensing modes, and their operational ranges. Recently, reviews on conjugated copolymers and nanofibers in the field of sensing various factors including metal ions, pH, temperature, and humidity imparts knowledge on colorimetric and fluorometric optical visible responses [29,30]. Conducting polymers playing a credulous role in the design of biosensors and recent reviews highlights their significance in the preparation and properties, of bioapplications [31,32].…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in Conducting Polymer Composite/Nanofiber-Based Strain and Pressure Sensors

et al. 2021

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The Conducting of polymers belongs to the class of polymers exhibiting excellence in electrical performances because of their intrinsic delocalized π- electrons and their tunability ranges from semi-conductive to metallic conductive regime. Conducting polymers and their composites serve greater functionality in the application of strain and pressure sensors, especially in yielding a better figure of merits, such as improved sensitivity, sensing range, durability, and mechanical robustness. The electrospinning process allows the formation of micro to nano-dimensional fibers with solution-processing attributes and offers an exciting aspect ratio by forming ultra-long fibrous structures. This review comprehensively covers the fundamentals of conducting polymers, sensor fabrication, working modes, and recent trends in achieving the sensitivity, wide-sensing range, reduced hysteresis, and durability of thin film, porous, and nanofibrous sensors. Furthermore, nanofiber and textile-based sensory device importance and its growth towards futuristic wearable electronics in a technological era was systematically reviewed to overcome the existing challenges.

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“…Nanofibers thus have high efficiency in filtering PM [ 19 , 20 ]. Many electrospun fiber membrane types have been manufactured as media for air filtration; the most common are those made from uniform and monostructured nanofibers, including ultrafine nylon 6 fibers [ 21 , 22 , 23 ], polyethylene oxide nanofibers [ 24 ], alumina nanofibers [ 25 ], and polyester nanofibers [ 26 , 27 , 28 , 29 ]; however, these materials cannot filter bacteria or viruses in the air.…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Activity and Protection Efficiency of Polyvinyl Butyral Nanofibrous Membrane Containing Thymol Prepared through Vertical Electrospinning

Chen

Cho

et al. 2021

Polymers

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Human safety, health management, and disease transmission prevention have become crucial tasks in the present COVID-19 pandemic situation. Masks are widely available and create a safer and disease transmission–free environment. This study presents a facile method of fabricating masks through electrospinning nontoxic polyvinyl butyral (PVB) polymeric matrix with the antibacterial component Thymol, a natural phenol monoterpene. Based on the results of Japanese Industrial Standards and American Association of Textile Chemists and Colorists methods, the maximum antibacterial value of the mask against Gram-positive and Gram-negative bacteria was 5.6 and 6.4, respectively. Moreover, vertical electrospinning was performed to prepare Thymol/PVB nanofiber masks, and the effects of parameters on the submicron particulate filtration efficiency (PFE), differential pressure, and bacterial filtration efficiency (BFE) were determined. Thorough optimization of the small-diameter nanofiber–based antibacterial mask led to denser accumulation and improved PFE and pressure difference; the mask was thus noted to meet the present pandemic requirements. The as-developed nanofibrous masks have the antibacterial activity suggested by the National Standard of the Republic of China (CNS 14774) for general medical masks. Their BFE reaches 99.4%, with a pressure difference of <5 mmH2O/cm2. The mask can safeguard human health and promote a healthy environment.

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Evolution of electrospun nanofibers fluorescent and colorimetric sensors for environmental toxicants, pH, temperature, and cancer cells – A review with insights on applications

Cited by 105 publications

References 221 publications

Textile-Based Sensors for Biosignal Detection and Monitoring

Textile-Based Sensors for Biosignal Detection and Monitoring

Recent Progress in Conducting Polymer Composite/Nanofiber-Based Strain and Pressure Sensors

Antibacterial Activity and Protection Efficiency of Polyvinyl Butyral Nanofibrous Membrane Containing Thymol Prepared through Vertical Electrospinning

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