Materials Literature
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Natural or synthetic porphyrins are being used as photosensitizers in photodiagnosis (PD) and photodynamic therapy (PDT) of malignancies and some other diseases. Understanding the interactions between porphyrins and cell membranes is therefore important to rationalize the uptake of photosensitizers and their passive t…
The cellular iron (Fe) quota of centric diatoms has been shown to vary in response to the ambient dissolved Fe concentration; however, it is not known how centric diatoms store excess intracellular Fe. Here, we use synchrotron X-ray fluorescence (SXRF) element mapping to identify Fe storage features in cells of Thalas…
Abstract Pentaerythritol–zinc (penzinc) was prepared by a solid‐phase reaction technique. The principal volatile products of the reaction between pentaerythritol and ZnO were analyzed with a coupled thermogravimetry—mass spectrometery system. The results indicated that a large amount of water was formed at the reactio…
GATG (gallic acid-triethylene glycol) dendrimers represent appealing nanostructures for biomedical applications. The incorporation of specific ligands and targeting and imaging agents on their surface has resulted in promising tools in diagnosis and drug delivery. With the aim to further explore the versatility of GAT…
The photoluminescence of zinc oxide nanowires was investigated via the thermal annealing treatment in oxygen-rich and oxygen-poor conditions. Dramatic changes in the relative intensity of the ultraviolet and the green visible luminescence were observed following different annealing treatments. The changes in photolumi…
During the weaving process, damages to yarns are observed and can lead to severe loss of mechanical properties in the final woven material. A complete and detailed analysis of the different steps, from the yarn spinning to the three-dimensional interlock weaving, has been carried out to measure the loss of properties…
Synthesis of silver nanoparticles by cell-free extract (CFE) of Pseudomonas aeruginosa M6 isolated from a mangrove ecosystem was demonstrated using two physical methods, namely, boiling (conventional thermal treatment (CTT)) and microwave treatment (MWT) at pH 9. X-ray diffraction (XRD) analysis revealed the presence…
Flax yarn and polypropylene yarn were used as weft and warp, respectively, for producing interwoven fabric. Unidirectional flax fiber-reinforced composites with different fiber orientation such as (0) 6 , (45) 6 , (60) 6 , (90) 6 , and (0/90)s were fabricated by hot pressing method. The effects of different angle orie…
Abstract Among the myriad of methods for polymer nanofiber production, there are only a few methods that can produce submicron range fibers in bulk from melt or solution samples. The Forcespinning™ method allows a substantial increase in sample yield while simultaneously maintaining the integrity of uniform fibers in…
We perform a comprehensive study of the effects of line defects on electronic and magnetic properties of monolayer boron-nitride (BN) sheets, nanoribbons, and single-walled BN nanotubes using first-principles calculations and Born-Oppenheimer quantum molecular dynamic simulation. Although line defects divide the BN sh…
As an emerging category of fluorescent metal nanoclusters, oligonucleotide-templated silver nanoclusters (Ag NCs) have attracted a lot of interest and have shown wide application in biorelated disciplines. However, the weak fluorescence emission and poor permeability to cell membranes tethered further intracellular ap…
Designing multifunctional surfaces that have user-specified interactions with impacting liquids and with incident light is a topic of both fundamental and practical significance. Taking cues from nature, we use tapered conical nanotextures to fabricate the multifunctional surfaces; the slender conical features result…
The microstructure evolution of confined glucose solutions in silica gels can provide insights into the effect of sugars in protecting living organisms under extreme dehydration conditions. Aqueous silica gels with relatively small pore sizes capable of deforming under changes in environmental conditions are used here…
Abstract Non‐self‐drying palm stearin alkyds were converted into UV‐curable resins via fumarization and maleinization. The maleated alkyds (AlkM) and fumarized alkyds (AlkF) were characterized by 1 H‐NMR and FTIR before they were formulated into UV‐curable coatings, with methyl methacrylate as the active diluents, and…
In this work we investigate the influence of a polarizable environment on the interaction energies and the interaction-induced (excess) static electric dipole properties for the selected model hydrogen-bonded complexes. The excess properties were estimated for water and hydrogen fluoride dimers using the supermolecula…
Abstract Bionanocomposites (BNCs) based on thermoplastic zein (TPZ) and unmodified sodium montmorillonite (MMT), at 1, 2.5, 5, and 10 wt % loading, were prepared by using an internal mixer. The nanocomposites were characterized by using the following analytical methods: small‐angle and wide‐angle X‐ray diffraction, th…
Abstract Polymer composites consisting of linear low‐density polyethylene (LLDPE), thermoplastic starch (TPS), and zeolite 5A (Z), with a constant PE to TPS weight ratio of 70 : 30 and zeolite 5A contents of 1–5 wt % were prepared in the forms of pellets and films by using a co‐rotating intermeshing twin‐screw extrude…
Abstract The bacterial cellulose–poly(vinyl alcohol) (BC/PVA) nanocomposite hydrogels using BC as the reinforcement and PVA as the matrix materials were formed in coagulating bath and crosslinked with formaldehyde, and characterized by attenuated total reflection Fourier transform infrared spectroscopy, mechanical pro…
The covalent grafting through a rigid ester bond of a dimeric porphyrin [(H 2 P) 2 ] and carbon nanohorns (CNHs) was accomplished. The newly formed CNH–(H 2 P) 2 hybrid was found to be soluble or dispersible in several organic solvents. Application of diverse spectroscopic techniques verified the successful formation…
InGaAs gate-all-around nanowire MOSFETs with channel length down to 50nm have been experimentally demonstrated by top-down approach. The nanowire size-dependent transport properties have been systematically investigated. It is found that reducing nanowire dimension leads to higher on-current, transconductance and effe…