Electrical stimulation induced by a piezo-driven triboelectric nanogenerator and electroactive hydrogel composite, accelerate wound repair

Sharma, Anjana; Panwar, Vineeta; Mondal, Bidya; Prasher, Dixit; Bera, Milan; Thomas, Jijo; Kumar, Ajay; Kamboj, Navpreet; Mandal, Dipankar; Ghosh, Deepa

doi:10.1016/j.nanoen.2022.107419

Cited by 59 publications

(41 citation statements)

References 48 publications

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“…40 The C 1s core-level high-resolution XPS spectra for the neat PVDF and CBIP3 films display dual peaks at −291.5 and −287 eV of binding energies, assigned to the two primary carbon species (−CF 2 − and −CH 2 −), respectively (Figure 5a). 50 A significant asymmetry in C 1s lines can be noticed in the CBIP3 film, which is absent in neat PVDF. These asymmetries reflect a significant modification in the chemical environment of the −CF 2 − and −CH 2 − dipoles of PVDF moieties of the CBIP3 composite.…”

Section: = + ×mentioning

confidence: 72%

“…The XPS spectra of the C 1s and F 1s were normalized, and the F 1s main lines are clarified as references if there is any charging effect . The C 1s core-level high-resolution XPS spectra for the neat PVDF and CBIP3 films display dual peaks at −291.5 and −287 eV of binding energies, assigned to the two primary carbon species (−CF 2 – and −CH 2 −), respectively (Figure a) . A significant asymmetry in C 1s lines can be noticed in the CBIP3 film, which is absent in neat PVDF.…”

Section: Resultsmentioning

confidence: 99%

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Lead-Free Perovskite Cs₃Bi₂I₉-Derived Electroactive PVDF Composite-Based Piezoelectric Nanogenerators for Physiological Signal Monitoring and Piezo-Phototronic-Aided Strain Modulated Photodetectors

Mondal¹,

Mishra²,

Sengupta³

et al. 2022

Langmuir

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In recent years, lead-free perovskite materials are exponentially emerging in photovoltaic and optoelectronic applications due to their low toxicity and superior optical properties. On the other hand, the demand for flexible, wearable, and lightweight optoelectronic devices is significantly growing in sensor and actuator technologies. In this scenario, lead-free perovskite-based flexible piezoelectric polymer composites have sparked considerable attention in this field due to their excellent piezo-, pyro-, ferroelectric, and photovoltaic properties. Thus, in this work, a long-term stable lead-free Cs 3 Bi 2 I 9 -PVDF composite is introduced. The in situ growth of the Cs 3 Bi 2 I 9 perovskite induces 92% yield of the electroactive phase in the PVDF matrix. The possible mechanism behind the electroactive β-phase transformation is presented via interfacial interactions of PVDF moieties with the Cs 3 Bi 2 I 9 (CBI) perovskite, which also give rise to long-term environmental stability. Next, a piezoelectric nanogenerator (PNG) has been fabricated with the Cs 3 Bi 2 I 9 -PVDF composite for mechanical energy harvesting, biophysiological motion monitoring, and voice recognitions that have potential utility in the health-care sector. Furthermore, a photodetector is developed to realize the piezophototronic effect. It exhibits a fast photoswitching behavior with rise and decay times of 141 and 278 ms, respectively. Thus, it is confirmed that the flexible Cs 3 Bi 2 I 9 -PVDF composite has shown tremendous potential to be used as an optical signal-modulated piezo-responsive wearable sensor.

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Section: = + ×mentioning

confidence: 72%

Section: Resultsmentioning

confidence: 99%

Lead-Free Perovskite Cs₃Bi₂I₉-Derived Electroactive PVDF Composite-Based Piezoelectric Nanogenerators for Physiological Signal Monitoring and Piezo-Phototronic-Aided Strain Modulated Photodetectors

Mondal¹,

Mishra²,

Sengupta³

et al. 2022

Langmuir

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“…It is therefore necessary that the corresponding healing equipment be able to be operated over long periods of time and be customizable in order to meet the different needs of different patients. Therefore, Sharma et al proposed an interactive wound dressing based on TENGs [ 82 ] that provided an electrical stimulation environment for patients, accelerating wound healing ( Figure 10 c). The dressing consisted of carbonized polydopamine/polydopamine/polyacrylamide and was paired with polyvinylidene fluoride (PVDF) film.…”

Section: Long-term Self-treatment Equipmentmentioning

confidence: 99%

“…( c ) Representative images of wounds on days 1, 3, 7, and 14. Reprinted with permission from [ 82 ]. 2022, Elsevier.…”

Section: Figurementioning

confidence: 99%

Adaptive Triboelectric Nanogenerators for Long-Term Self-Treatment: A Review

Zhao

Yin

et al. 2022

Biosensors

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Triboelectric nanogenerators (TENGs) were initially invented as an innovative energy−harvesting technology for scavenging mechanical energy from our bodies or the ambient environment. Through adaptive customization design, TENGs have also become a promising player in the self-powered wearable medical market for improving physical fitness and sustaining a healthy lifestyle. In addition to simultaneously harvesting our body’s mechanical energy and actively detecting our physiological parameters and metabolic status, TENGs can also provide personalized medical treatment solutions in a self-powered modality. This review aims to cover the recent advances in TENG-based electronics in clinical applications, beginning from the basic working principles of TENGs and their general operation modes, continuing to the harvesting of bioenergy from the human body, and arriving at their adaptive design toward applications in chronic disease diagnosis and long-term clinical treatment. Considering the highly personalized usage scenarios, special attention is paid to customized modules that are based on TENGs and support complex medical treatments, where sustainability, biodegradability, compliance, and bio-friendliness may be critical for the operation of clinical systems. While this review provides a comprehensive understanding of TENG-based clinical devices that aims to reach a high level of technological readiness, the challenges and shortcomings of TENG-based clinical devices are also highlighted, with the expectation of providing a useful reference for the further development of such customized healthcare systems and the transfer of their technical capabilities into real-life patient care.

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“…Among them, PVDF is a promising polymer matrix due to its high flexibility, ferroelectric properties, and high thermal stability [ 30 ]. Note that PVDF has a broad potential in wound dressings due to its applicability [ 31 ], anti-adhesion [ 32 ], coagulation [ 33 ], and non-neutralization with ROS [ 34 ].…”

Section: Introductionmentioning

confidence: 99%

Rapid Ferroelectric-Photoexcited Bacteria-Killing of Bi4Ti3O12/Ti3C2Tx Nanofiber Membranes

Wang

Qiao

et al. 2022

Adv. Fiber Mater.

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In this study, an antibacterial nanofiber membrane [polyvinylidene fluoride/Bi 4 Ti 3 O 12 /Ti 3 C 2 T x (PVDF/BTO/Ti 3 C 2 T x )] is fabricated using an electrostatic spinning process, in which the self-assembled BTO/Ti 3 C 2 T x heterojunction is incorporated into the PVDF matrix. Benefiting from the internal electric field induced by the spontaneously ferroelectric polarization of BTO, the photoexcited electrons and holes are driven to move in the opposite direction inside BTO, and the electrons are transferred to Ti 3 C 2 T x across the Schottky interface. Thus, directed charge separation and transfer are realized through the cooperation of the two components. The recombination of electron–hole pairs is maximumly inhibited, which notably improves the yield of reactive oxygen species by enhancing photocatalytic activity. Furthermore, the nanofiber membrane with an optimal doping ratio exhibits outstanding visible light absorption and photothermal conversion performance. Ultimately, photothermal effect and ferroelectric polarization enhanced photocatalysis endow the nanofiber membrane with the ability to kill 99.61% ± 0.28% Staphylococcus aureus and 99.71% ± 0.16% Escherichia coli under 20 min of light irradiation. This study brings new insights into the design of intelligent antibacterial textiles through a ferroelectric polarization strategy. Graphical Abstract Supplementary Information The online version contains supplementary material available at 10.1007/s42765-022-00234-8.

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Electrical stimulation induced by a piezo-driven triboelectric nanogenerator and electroactive hydrogel composite, accelerate wound repair

Cited by 59 publications

References 48 publications

Lead-Free Perovskite Cs₃Bi₂I₉-Derived Electroactive PVDF Composite-Based Piezoelectric Nanogenerators for Physiological Signal Monitoring and Piezo-Phototronic-Aided Strain Modulated Photodetectors

Lead-Free Perovskite Cs₃Bi₂I₉-Derived Electroactive PVDF Composite-Based Piezoelectric Nanogenerators for Physiological Signal Monitoring and Piezo-Phototronic-Aided Strain Modulated Photodetectors

Adaptive Triboelectric Nanogenerators for Long-Term Self-Treatment: A Review

Rapid Ferroelectric-Photoexcited Bacteria-Killing of Bi4Ti3O12/Ti3C2Tx Nanofiber Membranes

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Electrical stimulation induced by a piezo-driven triboelectric nanogenerator and electroactive hydrogel composite, accelerate wound repair

Cited by 59 publications

References 48 publications

Lead-Free Perovskite Cs3Bi2I9-Derived Electroactive PVDF Composite-Based Piezoelectric Nanogenerators for Physiological Signal Monitoring and Piezo-Phototronic-Aided Strain Modulated Photodetectors

Lead-Free Perovskite Cs3Bi2I9-Derived Electroactive PVDF Composite-Based Piezoelectric Nanogenerators for Physiological Signal Monitoring and Piezo-Phototronic-Aided Strain Modulated Photodetectors

Adaptive Triboelectric Nanogenerators for Long-Term Self-Treatment: A Review

Rapid Ferroelectric-Photoexcited Bacteria-Killing of Bi4Ti3O12/Ti3C2Tx Nanofiber Membranes

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Lead-Free Perovskite Cs₃Bi₂I₉-Derived Electroactive PVDF Composite-Based Piezoelectric Nanogenerators for Physiological Signal Monitoring and Piezo-Phototronic-Aided Strain Modulated Photodetectors

Lead-Free Perovskite Cs₃Bi₂I₉-Derived Electroactive PVDF Composite-Based Piezoelectric Nanogenerators for Physiological Signal Monitoring and Piezo-Phototronic-Aided Strain Modulated Photodetectors