Incorporating charged Ag@MOFs to boost the antibacterial and filtration properties of porous electrospinning polylactide films

Yue, Zhenqing; Zhou, Jingheng; Du, X.H.; Wu, Lei; Wang, Junrui; Wang, Xinlong

doi:10.1016/j.ijbiomac.2023.126223

Cited by 9 publications

(4 citation statements)

References 56 publications

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“…The ZIF-8@CCM was prepared by a modified method according to a reported literature. , The mass ratios of CCM and ZIF exert great influence on the antibacterial activity. In our case, we chose an optimal ZIF-8@CCM loading according to the literature . Typically, CTAB (0.2 g) was dissolved and sonicated in methanol (100 mL) for 10 min to prepare the CTAB solution.…”

Section: Experimental Methodsmentioning

confidence: 99%

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Microfluidic Spinning of Metal–Organic Framework-Loaded Nanofibers toward High-Efficient Particulate Matter Removal and Antibacterial Filters

Dong,

Zhou,

Yong

et al. 2023

Ind. Eng. Chem. Res.

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Ambient particulate matter (PM) is one of the major pollutants in the atmosphere. Due to its small size, PM2.5 can penetrate the bronchial tubes and lungs, posing a serious threat to public health. Thus, methods allowing for the facile fabrication of efficient filtration materials are highly desirable. In this paper, we report a double-pore composite nanofiber membrane toward highly efficient and antibacterial filters. Specially, zeolite imidazole framework-8 nanoparticles coated with curcumin (ZIF-8@CCM) were prepared and spun with a polymer solution through a Y-channel via a microfluidic spinning strategy, generating a double-pore structure in the composite nanofiber. In virtue of the high porosity and permeability of the polymer nanofiber, as well as the large-enough surface and the abundant active sites of ZIF-8, the composite nanofiber membrane exhibits excellent PM removal performances. Outstanding filtration efficiencies of 99.41, 99.97, and 100% were achieved for PM0.5, PM2.5, and PM10, respectively. In addition, due to the antibacterial properties of ZIF-8 and CCM, the composite nanofiber membrane shows superior antibacterial properties. This work provides a facile pathway to fabricate a ZIF-8@CCM-loaded composite nanofiber membrane via microfluidic spinning, which will stimulate the design and development of versatile and high-performance filters.

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Section: Experimental Methodsmentioning

confidence: 99%

“…In our case, we chose an optimal ZIF-8@CCM loading according to the literature. 33 Typically, CTAB (0.2 g) was dissolved and sonicated in methanol (100 mL) for 10 min to prepare the CTAB solution. Then, solution A was obtained by dissolving zinc acetate dihydrate (0.6 g) in methanol (10 mL).…”

Section: Preparation Of Zif-8@ccm By Microfluidic Technologymentioning

confidence: 99%

Microfluidic Spinning of Metal–Organic Framework-Loaded Nanofibers toward High-Efficient Particulate Matter Removal and Antibacterial Filters

Dong,

Zhou,

Yong

et al. 2023

Ind. Eng. Chem. Res.

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“…10−12 As a good example, Ding's group fabricated melt-blown PLA nonwovens with a PM 0.3 filtration efficiency of 92.6% at 32 L/min, 13 while Wang et al developed the electrospun PLA fibrous membranes exhibiting high PM 2.5 filtration efficiencies of over 97.0% at 2 L/min and a relative humidity (RH) of 30−90%. 14 the development of PLA-based membrane filters is still challenged by the overwhelming weakness of insufficient charge trapping capacity and rapidly attenuated filtration performance, mainly due to the limited polarizabilities, low dielectric constants, and poor electret properties. It essentially arises from the poor crystallization ability and the 10 3 -helix conformation of PLA chains, leading to limited polarizability, low dielectric constant, and poor initial electret property.…”

Section: ■ Introductionmentioning

confidence: 99%

“…As an outstanding candidate among the biodegradable polymers, poly(lactic acid) (PLA) shows enormous potential in the field of air purification owing to its favorable ease of processing and high mechanical properties. − As a good example, Ding’s group fabricated melt-blown PLA nonwovens with a PM 0.3 filtration efficiency of 92.6% at 32 L/min, while Wang et al developed the electrospun PLA fibrous membranes exhibiting high PM 2.5 filtration efficiencies of over 97.0% at 2 L/min and a relative humidity (RH) of 30–90% . However, the development of PLA-based membrane filters is still challenged by the overwhelming weakness of insufficient charge trapping capacity and rapidly attenuated filtration performance, mainly due to the limited polarizabilities, low dielectric constants, and poor electret properties.…”

Section: Introductionmentioning

confidence: 99%

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

Wang,

He,

Zhu

et al. 2024

ACS Sustainable Chem. Eng.

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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 and poor electret properties. Herein, we disclose an effective electrospinning strategy to substantially promote the electroactivity by extreme orientation of stereocomplexed PLA (OSC-PLA), conferring significant alignment and refinement of the electrospun nanofibers (diameter of ∼370 nm), as well as facilitate the formation of electroactive phases (i.e., βphase, electrospun phase, and stereocomplex crystals). Benefiting from the well-tailored morphology and remarkable electroactivity, the OSC-PLA nanofibrous membranes (NFMs) were characterized by largely improved dielectric properties, surface potential (over 3.64 kV), and PM 0.3 filtration properties (93.33% at 85 L/min) compared to the pure PLLA membrane (2.01 kV and 80.21%). It enabled the assembly of triboelectric nanogenerator (TENG) air filters using the OSC-PLA NFMs as the active layer, yielding excellent charge regeneration mechanisms and an output current of nearly 80 nA, as driven by respiratory vibrations at 85 L/min, thus permitting high humidity resistance, as exemplified by a PM 0.3 removal efficiency of 95.02% at a RH of 90%. Moreover, deep machine learning and man−machine interaction were integrated with the OSC-PLA-based TENGs, demonstrating long-term monitoring and a high-precision diagnosis (accuracy of 96.88%) of various respiratory patterns. The proposed ecofriendly and electroactive ultrafine PLA nanofibers are highly appealing for sustained respiratory healthcare and self-powered intelligent diagnosis.

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Revolutionizing Textile Applications: Unveiling the Potential of NiFe2O4 Nanoparticles for Enhanced Performance

Adinaveen,

Hirthna,

Amalraj

et al. 2023

Fibers Polym

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Incorporating charged Ag@MOFs to boost the antibacterial and filtration properties of porous electrospinning polylactide films

Cited by 9 publications

References 56 publications

Microfluidic Spinning of Metal–Organic Framework-Loaded Nanofibers toward High-Efficient Particulate Matter Removal and Antibacterial Filters

Microfluidic Spinning of Metal–Organic Framework-Loaded Nanofibers toward High-Efficient Particulate Matter Removal and Antibacterial Filters

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

Revolutionizing Textile Applications: Unveiling the Potential of NiFe2O4 Nanoparticles for Enhanced Performance

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