One-Step Bark-Like Imitated Polypropylene (PP)/Polycarbonate (PC) Nanofibrous Meltblown Membrane for Efficient Particulate Matter Removal

Li, Ting‐Ting; Cen, Xixi; Ren, Haitao; Sun, Fei; Lin, Qi; Lou, Ching‐Wen; Lin, Jia‐Horng

doi:10.3390/polym11081307

Cited by 18 publications

(17 citation statements)

References 40 publications

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“…[ 13 b, 16,18 ] The light responsiveness of CarH has previously been used for the optogenetic regulation of receptor signaling, [ 17 ] gene expression in cells, [ 19 ] as well as in material science to regulate mechanical properties and protein/cell release from hydrogels. [ 13 a, 20 ] It should be noted that these previous reports of CarH document that AdoB 12 , green light illumination, and the CarH protein are highly biocompatible. In our design, we hypothesized that cells expressing the protein CarH on the plasma membrane will form cell–cell interactions in the presence of AdoB 12 as CarH tetramers assemble and that these interactions will be cleaved upon green light illumination, as the CarH tetramer photolyzes into its monomers ( Figure 1 a).…”

Section: Figurementioning

confidence: 98%

Spatiotemporal Control Over Multicellular Migration Using Green Light Reversible Cell–Cell Interactions

et al. 2021

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cell-cell adhesions leads to the progression of cancer [1c] and subsequent metastasis. [4] Additionally, the control of cell-cell interactions is of interest in the field of bottomup tissue-engineering, which aims to assemble cells as the basic unit into functional tissues. [5] Precise control in time and space over cell-cell interactions is required to successfully assemble appropriate multicellular architectures that resemble the in vivo structures and to control how cells work together within a tissue.In recent years, many tools have been developed to control the formation and the disassembly of cell-cell interactions in a controlled manner and thereby have given insight into the role of cell-cell adhesions. [6] For instance, chemical modifications of the plasma membrane with bioorthogonal reactive functional groups [7] and specific noncovalent interaction partners [8] including complementary DNA strands, [9] biotin-streptavidin, [10] and supramolecular binding partners [11] result in the formation of chemical bonds between neighboring cells. However, in only a few examples, it is possible to reverse these cell-cell interactions once formed. [11] To overcome general concerns related to the chemical modification of the cell membrane (e.g., degradation over time, off-target cell toxicity), it is possible to regulate the expression and the activity of genetically encoded native cell-cell adhesion molecules such as cadherins [12] or artificial surface receptors. [1d,9b,6,12,13] These adhesions allow cells to not only just be brought together but in some cases also to transduce intracellular signals. [1e,12,14] Photoregulation of cell-cell adhesions provides high spatiotemporal control, since light, as a stimulus, can be focused on the desired area and delivered at any given time. Using photocleavable nitrobenzyl [15] and switchable azobenzyl [14] chemical linkers, it has been shown possible to control cell-cell interactions with UV light. [11b,15,16] More recently, optogenetic tools for the regulation of cell-cell interactions with visible light have improved the biocompatibility, [13b,e] while also making it possible to dynamically and reversibly control cell-cell interactions between multiple cell types. [13b,e,16b,17] In these reports, photoswitchable proteins were expressed on the cell's plasma membrane as artificial adhesion molecules, which induced cell-cell interactions through the light-dependent dimerization of these proteins. [6] Depending on the photoswitchable proteins employed cell-cell adhesions between the same or differentThe regulation of cell-cell adhesions in space and time plays a crucial role in cell biology, especially in the coordination of multicellular behavior. Therefore, tools that allow for the modulation of cell-cell interactions with high precision are of great interest to a better understanding of their roles and building tissuelike structures. Herein, the green light-responsive protein CarH is expressed at the plasma membrane of cells as an artificial cell adhesion rece...

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Section: Figurementioning

confidence: 98%

Spatiotemporal Control Over Multicellular Migration Using Green Light Reversible Cell–Cell Interactions

et al. 2021

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“…However, the average fiber diameter of PP/PVA/ZIF-8 melt-blown electrospun composite membranes is not proportional to the ZIF-8 content. An increase in the ZIF-8 content leads to an increasing trend in the fiber diameter because electrospinning fibrous membranes gradually become self-adhesive and form a continuous phase [ 37 ]. Severe particle aggregation still occurs in ZIFs-containing matrix membranes [ 38 ], and the specific surface area of PP/PVA/ZIF-8 melt-blown membranes increases with decreasing fiber diameter.…”

Section: Resultsmentioning

confidence: 99%

Polypropylene/Polyvinyl Alcohol/Metal-Organic Framework-Based Melt-Blown Electrospun Composite Membranes for Highly Efficient Filtration of PM2.5

Fan

Cen

et al. 2020

Nanomaterials

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Particulate matter 2.5 (PM2.5) has become a public hazard to people’s lives and health. Traditional melt-blown membranes cannot filter dangerous particles due to their limited diameter, and ultra-fine electrospinning fibers are vulnerable to external forces. Therefore, creating highly efficient air filters by using an innovative technique and structure has become necessary. In this study, a combination of polypropylene (PP) melt-blown and polyvinyl alcohol (PVA)/zeolite imidazole frameworks-8 (ZIF-8) electrospinning technique is employed to construct a PP/PVA/ZIF-8 membrane with a hierarchical fibrous structure. The synergistic effect of hierarchical fibrous structure and ZIF-8 effectively captures PM2.5. The PP/PVA composite membrane loaded with 2.5% loading ZIF-8 has an average filtration efficacy reaching as high as 96.5% for PM2.5 and quality factor (Qf) of 0.099 Pa−1. The resultant membrane resists 33.34 N tensile strength and has a low pressure drop, excellent filtration efficiency, and mechanical strength. This work presents a facile preparation method that is suitable for mass production and the application of membranes to be used as air filters for highly efficient filtration of PM2.5.

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“…The preparation method of polymer filters mainly includes electrospinning technology ( Figure A), [ 21 ] melt‐blown processes (Figure 2B), [ 22 ] and blow‐spinning (Figure 2C). [ 23 ] The preparation method effects the fiber diameter, specific surface area, and filter thickness, which determine the structure and performance of polymer fiber filters.…”

Section: Preparation Methods Of Polymer Fiber Filtersmentioning

confidence: 99%

Section: Preparation Methods Of Polymer Fiber Filtersmentioning

confidence: 99%

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Air Purification Using Polymer Fiber Filters

Chai

Tong

Wang

et al. 2021

Macro Materials & Eng

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Polymer fiber filters, with their high surface area, low cost, and easy large-scale manufacturing, are widely used in air purification. These filters have been combined with various types of functional nanoparticles to endow them with electrostatic adsorption, photocatalysis, electrocatalysis, photoelectrocatalysis, or antibacterial properties, and improve their filtering performance. In this study, a summary of the research on single polymer and polymer composite filters for highly efficient air purification is presented. In single polymer filters, polar groups in the polymer chains, a rich porous structure, and electret process improve their removal capability. In polymer composite filters, metal-organic frameworks, porous particles, and electret materials as fillers improve the physical adsorption of the materials, while the use of photocatalysts, electrocatalysts, photoelectrocatalysts, and antibacterial agents as functional fillers endows the filters with additional chemical reactions for the complete degradation of gas and microorganism pollutants. Finally, the challenges that remain in the development of polymer filters for use in air purification are also discussed in terms of material type and fabrication technology. It is expected that polymer filters with tunable surface properties and multifunctions can realize highly efficient air purification with low energy consumption.

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One-Step Bark-Like Imitated Polypropylene (PP)/Polycarbonate (PC) Nanofibrous Meltblown Membrane for Efficient Particulate Matter Removal

Cited by 18 publications

References 40 publications

Spatiotemporal Control Over Multicellular Migration Using Green Light Reversible Cell–Cell Interactions

Spatiotemporal Control Over Multicellular Migration Using Green Light Reversible Cell–Cell Interactions

Polypropylene/Polyvinyl Alcohol/Metal-Organic Framework-Based Melt-Blown Electrospun Composite Membranes for Highly Efficient Filtration of PM2.5

Air Purification Using Polymer Fiber Filters

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