MOF Nanosheet-Functionalized Poly(lactic acid) Meta-membranes for Long-Term Air Purification and Intelligent Monitoring DOI
Xinjian He,

Cunmin Wang,

Yaxin Hao

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 30, 2024

The wide use of conventional polymeric air filters is causing a dramatically increasing accumulation plastic and microplastic pollution. development poly(lactic acid) (PLA) fibrous membranes for efficient purification important significance but frequently challenged by the rapid decay filtration performance due to intrinsically poor electret properties PLA. Here, we propose an electroactivity promotion methodology, involving one-step synthesis homogeneous incorporation high-dielectric ZIF-8 nanosheets (ZIFNSs), facilitate interfacial polarization fiber refinement during electrospinning PLA nanofibers. preparative electrospun PLA/ZIFNS meta-membranes exhibited unusual combination significantly reduced nanofiber diameter (∼462 nm), enhanced surface potential (approaching 10 kV), increased activity facilitated formation electroactive phases. With well-controlled morphological features, highly exceptional efficiencies PM

Language: Английский

Stereocomplexation-Enhanced Electroactivity of Poly(lactic acid) Nanofibrous Membranes for Long-Term PM Capturing and Remote Respiratory Monitoring DOI
Xinyi Song, Mengke Tang,

Cunmin Wang

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(9), P. 3554 - 3564

Published: Feb. 1, 2024

Development of poly(lactic acid) (PLA) nanofibrous membranes (NFMs) holds great potential to replace the conventional nondegradable air filters, but is largely thwarted by intrinsically low electroactivity and poor electret properties PLA. Here, highly electroactive PLA NFMs coupling triboelectric nanogenerator (TENG)-based recharging mechanisms are demonstrated for long-term respiratory protection from fine ultrafine particulate matters (PM0.3 PM2.5), as well wireless intelligent monitoring physiological characters. To enhance in situ self-charging NFMs, we proposed a stereocomplexation strategy involving direct electrospinning PLLA/PDLA nanofibers (approaching 500 nm), conferring remarkable promotion phases, dielectric properties, surface (over 10 kV), output (nearly 20 V at humanoid breathing conditions). Benefiting well-tailored morphology features, exhibited high (180 V) excellent filtration performance (96.32% PM2.5 92.09% PM0.3) while providing desirable resistance (only ∼200 Pa even 85 L/min), far surpassing those pristine PLLA counterpart (60 V, 72.92%, 281 Pa, respectively). This was accompanied high-sensitivity vivo cardiorespiratory characters such coughing breathing, essentially arising respiration-triggered distinct TENG mechanisms. Featuring efficient noninvasive monitoring, our biodegradable appealing healthcare real-time monitoring.

Language: Английский

Citations

30
Electroactive and breathable protective membranes by surface engineering of dielectric nanohybrids at poly(lactic acid) nanofibers with excellent self-sterilization and photothermal properties DOI

Liang Jiang,

Xuanjin Zhu,

Jiaqi Li

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 339, P. 126708 - 126708

Published: Feb. 11, 2024

Language: Английский

Citations

30
Tribo-charge enhanced and cellulose based biodegradable nanofibrous membranes with highly fluffy structure for air filtration and self-powered respiration monitoring systems DOI
Miaomiao Zhu,

Yankang Deng,

Yong Zheng

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 468, P. 133770 - 133770

Published: Feb. 14, 2024

Language: Английский

Citations

29
Nanopatterning of beaded poly(lactic acid) nanofibers for highly electroactive, breathable, UV-shielding and antibacterial protective membranes DOI

Ting Yang,

Xuanjin Zhu,

Yu Zhang

et al.

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 260, P. 129566 - 129566

Published: Jan. 20, 2024

Language: Английский

Citations

27
Bio-inspired gradient poly(lactic acid) nanofibers for active capturing of PM0.3 and real-time respiratory monitoring DOI

Guiying Zhu,

Cunmin Wang,

Ting Yang

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 474, P. 134781 - 134781

Published: May 31, 2024

Language: Английский

Citations

27
Engineering biodegradable bacterial cellulose/polylactic acid multi-scale fibrous membrane via co-electrospinning-electrospray strategy for efficient, wet-stable, durable PM0.3 filtration DOI
Yuchen Yang,

Meiyan Zhong,

Wenqing Wang

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 352, P. 128143 - 128143

Published: May 27, 2024

Language: Английский

Citations

20
Extreme Orientation of Stereocomplexed Poly(lactic acid) Induced Ultrafine Electroactive Nanofibers for Respiratory Healthcare and Intelligent Diagnosis DOI

Cunmin Wang,

Xinjian He,

Guiying Zhu

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(24), P. 9290 - 9300

Published: June 5, 2024

Biodegradable and renewable poly(lactic acid) (PLA) fibrous membranes have emerged as a promising approach to replace traditional polymeric air filters, but are still challenged by relatively low electroactivity poor electret properties. Herein, we disclose an effective electrospinning strategy substantially promote the extreme orientation of stereocomplexed PLA (OSC-PLA), conferring significant alignment refinement electrospun nanofibers (diameter ∼370 nm), well facilitate formation electroactive phases (i.e., β-phase, phase, stereocomplex crystals). Benefiting from well-tailored morphology remarkable electroactivity, OSC-PLA nanofibrous (NFMs) were characterized largely improved dielectric properties, surface potential (over 3.64 kV), PM0.3 filtration properties (93.33% at 85 L/min) compared pure PLLA membrane (2.01 kV 80.21%). It enabled assembly triboelectric nanogenerator (TENG) filters using NFMs active layer, yielding excellent charge regeneration mechanisms output current nearly 80 nA, driven respiratory vibrations L/min, thus permitting high humidity resistance, exemplified removal efficiency 95.02% RH 90%. Moreover, deep machine learning man–machine interaction integrated with OSC-PLA-based TENGs, demonstrating long-term monitoring high-precision diagnosis (accuracy 96.88%) various patterns. The proposed ecofriendly ultrafine highly appealing for sustained healthcare self-powered intelligent diagnosis.

Language: Английский

Citations

20
Lotus leaf-inspired poly(lactic acid) nanofibrous membranes with enhanced humidity resistance for superefficient PM filtration and high-sensitivity passive monitoring DOI
Chao Xu,

Liang Jiang,

Yifan Zhang

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 488, P. 137516 - 137516

Published: Feb. 5, 2025

Language: Английский

Citations

7
Biodegradable Air Filter with Electrospun Composite Nanofibers and Cellulose Fibers Dual Network: Enhanced Electrostatic Adsorption, Humidity Resistance and Extended Service Life DOI
Jingyi Nie, Bin Sun,

Tingting Jiao

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 489, P. 137557 - 137557

Published: Feb. 10, 2025

Language: Английский

Citations

3
Nanopatterned Electroactive Polylactic Acid Nanofibrous MOFilters for Efficient PM0.3 Filtration and Bacterial Inhibition DOI

Guiying Zhu,

Xinyu Li, Xiaopeng Li

et al.

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(40), P. 47145 - 47157

Published: Oct. 2, 2023

Biodegradable polylactic acid (PLA) nanofibrous membranes (NFMs) hold great potential to address the increasing airborne particulate matter (PM) and dramatic accumulation of plastic/microplastic pollution. However, field PLA NFM-based filters is still in its infancy, frequently dwarfed by bottlenecks regarding relatively low surface activity, poor electroactivity, insufficient PM capturing mechanisms. This effort discloses a microwave-assisted approach minute-level synthesis dielectric ZIF-8 nanocrystals with high specific area (over 1012 m2/g) ultrasmall size (∼240 nm), which were intimately anchored onto nanofibers (PLA@ZIF-8) combined "electrospinning-electrospray" strategy. endowed PLA@ZIF-8 NFMs largely increased electroactivity terms elevated coefficient (an increase 202%), (up 5.8 kV), triboelectric properties (output voltage 30.8 V at 10 N, 0.5 Hz). Given profound control over morphology exhibited efficient filtration PM0.3 (97.1%, 85 L/min) decreased air resistance (592.5 Pa), surpassing that pure counterpart (88.4%, 650.9 Pa). was essentially ascribed realization multiple mechanisms for NFMs, including enhanced physical interception, polar interactions, electrostatic adsorption, unique self-charging function triggered airflow vibrations. Moreover, perfect antibacterial performance achieved PLA@ZIF-8, showing ultrahigh inhibition rates 99.9 100% against E. coli S. aureus, respectively. The proposed hierarchical structuring strategy, offering multifunction integration unattainable conventional methods, may facilitate development biodegradable long-term filters.

Language: Английский

Citations

39