Electrospinning is a highly versatile method to process solutions or melts, mainly of polymers, into continuous fibers with diameters ranging from few micrometers nanometers. This technique applicable virtually every soluble fusible polymer. The polymers can be chemically modified and also tailored additives simple carbon-black particles complex species such as enzymes, viruses, bacteria. appears straightforward, but rather intricate that depends on multitude molecular, process, technical...

Structured polymer fibers with diameters down to tens of nanometers are interest for applications in filters, composite reinforcement, or as templates the preparation functional nanotubes. The Figure shows poly-L-lactide produced by electrospinning from a dichloromethane solution exhibiting regular pores pits 100 nm range.

Co‐electrospinning of core–shell polymer nanofibers (see Figure) is introduced. This process can be used for manufacturing coaxial made pairs different materials. Non‐spinnable materials forced into 1D arrangements by co‐electrospinning using a spinnable shell polymer. The method results in novel two‐stage approach fabrication nanotubes instead the previously three‐stage process.

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The pathogenesis and etiology of Hodgkin's disease, a common human malignant lymphoma, is still unresolved. As unique characteristic, we have identified constitutive activation the transcription factor nuclear (NF)-kappaB p50-RelA in Hodgkin/Reed-Sternberg (H/RS) cells, which discriminates these neoplastic cells from most cell types studied to date. In contrast other lymphoid nonlymphoid lines tested, proliferation H/RS depended on activated NF-kappaB. Furthermore, NF-kappaB prevented...

Abstract Electrospinning is an extremely promising method for the preparation of tissue engineering (TE) scaffolds. This technique provides nonwovens resembling in their fibrillar structures those extracellular matrix (ECM), and offering large surface areas, ease functionalization various purposes, controllable mechanical properties. The recent developments toward large‐scale productions combined with simplicity process render this very attractive. Progress concerning use electrospinning TE...

Composite nanofiber sheets of well-aligned polyacrylonitrile nanofibers (PAN) containing multiwall carbon nanotubes (MWCNTs) were prepared by electrospinning a MWCNT-suspended solution PAN in dimethyl formamide using moving collector. Scanning electron microscopy, atomic force transmission microscopy (TEM), IR spectroscopy, Raman X-ray scattering, and the Instron test used to characterize sheets. TEM observation showed MWCNTs parallel oriented along axes nanofibers. The mechanical properties...

In patients with rheumatoid arthritis the synovial membrane of affected joint is infiltrated lymphoid cells which may be arranged in structures resembling germinal centers. We have directly isolated such infiltrates to determine whether B-cell clones within them are selected and expanded a process analogous that normally takes place centers secondary organs. The data suggest an antigen-driven leads accumulation B membrane. finding identical sequences consecutive sections suggests under...

Coating extremely thin degradable template polymer fibers with the desired wall materials forms basis of straightforward and highly versatile method described here for production polymer, metal, hybrid nano- mesotubes. Tubes structured inner surfaces (see Figure) may be fabricated, which is great interest applications requiring large surface/volume ratios also cover).

Electrospun polymer fibers can be coated with amorphous titanium dioxide using a sol–gel coating technique. After removal of the organic material by thermal treatment hollow titania are produced. The is able to reproduce finer details fiber, e.g., Figure shows how oval nodules that were indentations on initial mimicked in final inorganic structure (see also images front cover).

Highly oriented, large area continuous composite nanofiber sheets made from surface-oxidized multiwalled carbon nanotubes (MWNTs) and polyacrylonitrile (PAN) were successfully developed using electrospinning. The preferred orientation of MWNTs along the fiber axis was determined with transmission electron microscopy diffraction. surface morphology height profile nanofibers also investigated an atomic force microscope in tapping mode. For first time, it observed that within much higher than...

Protein-loaded (bovine serum albumin (BSA) or luciferase) poly(vinyl alcohol) (PVA) nanofibers were obtained by electrospinning. Poly(p-xylylene) (PPX, also coined as parylene) coated PVA/BSA prepared chemical vapor deposition (CVD). The release of BSA from PVA under physiological conditions was monitored absorption spectroscopy. Burst noted with uncoated nanofibers. In contrast, PPX-coated exhibited a significantly retarded depending on the coating thickness PPX (ranging 40 to 300 nm)....

Here we propose copper as a high performance and economically viable anode material for microbial bioelectrochemical systems.

The stability of polymers with CC and stable Cheteroatom backbones against chemicals, hydrolysis, temperature, light, microbes has challenged society the problem accumulation plastic waste its management worldwide. Given careless disposal waste, large amounts litter accumulate in environment disintegrate into microplastics. One questions frequently raised recent times is if so‐called biodegradable can substitute conventional for several applications help to tackle this challenge. answer...

Gene transfection is the transfer of genetic material like DNA into cells. Cationic polymers which form nanocomplexes with DNA, so-called non-viral gene vectors, are a highly promising platform for efficient transfection. Despite intensive research efforts and some on-going clinical trials on transfection, none existing cationic polymer systems generally acceptable human therapy. Since process complex puts different challenges demands delivery system, there strong requirement design...

Three-dimensional carbon fiber electrodes prepared by electrospinning and solution blowing are shown to be excellent electrode materials for bioelectrochemical systems such as microbial fuel cells or electrolysis cells. The bioelectrocatalytic anode current density is reach values of up 30 A m−2, which represents the highest reported electroactive biofilms.

Completely bio-based high molecular weight aliphatic poly(limonene carbonate) with excellent transparency, superior hardness compared to BPA-PC and a <italic>T</italic>_g of 130 °C.

Abstract Completely bio-based poly(limonene carbonate) is a thermoplastic polymer, which can be synthesized by copolymerization of limonene oxide (derived from limonene, found in orange peel) and CO 2 . Poly(limonene has one double bond per repeating unit that exploited for further chemical modifications. These modifications allow the tuning properties aliphatic polycarbonate nearly any direction. Here we show synthetic routes to demonstrate perfect green platform many functional materials...

Microplastic particles ubiquitously found in the environment are ingested by a huge variety of organisms. Subsequently, microplastic can translocate from gastrointestinal tract into tissues likely cellular internalization. The reason for internalization is unknown, since this has only been shown specifically surface-functionalized particles. We show that environmentally exposed were internalized significantly more often than pristine macrophages. identified biomolecules forming an eco-corona...

Strong and tough fibers Dragline spider silk is known for its combination of strength toughness, but this has been hard to replicate in synthetic fibers. Liao et al. electrospun polyacrylonitrile- co -methyl acrylate modified with a small amount poly(ethylene glycol) bisazide (PEG-BA) (see the Perspective by Fox). After collecting yarn, it was annealed under tension that both aligned cross-linked them together via PEG-BA. As hoped, overall properties were comparable those silk. Science ,...

Tunable density, thermally and mechanically stable, elastic, insulating sponges are required for demanding applications. Hierarchically structured with bimodal interconnected pores, porosity more than 99%, tunable densities (between 7.6 10.1 mg/cm3) reported using polyimide (PI) as high temperature stable polymer. The made by freeze-drying a dispersion of short PI fibers precursor polymer, poly(amic acid) (PAA). concept "self-gluing" the fibrous network skeleton during sponge formation was...