Materials Literature
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Abstract Tracking transplanted stem cells is necessary to clarify cellular properties and improve transplantation success. In this study, we designed and synthesized melanin‐based gadolinium3+ (Gd3+)‐chelate nanoparticles (MNP‐Gd3+) of ∼7 nm for stem cell tracking in vivo. MNP‐Gd3+ possesses many beneficial properties…
In this study, the aromatic-rich fraction from heavy oil was modified by polyacrylic acid and oleic acid to obtain the modified raw materials which were used for producing mesophase pitch via polymerization reaction. First, the properties of modified feedstocks were analyzed by Fourier transform infrared spectrometry…
We wish to make readers aware that the text in the published paper [1] contains substantial overlap with a previous paper by the same author [2].[...].
Steady-state and time-resolved fluorescence techniques, in addition to quantum mechanical calculations, were employed to study the excited-state proton transfer (ESPT) to solvent of three 7-hydroxycoumarin dyes. We found that for 7-hydroxycoumarins in water, the ESPT rate is high, about 2 × 10 10 s –1, whereas in meth…
Solar fuel production from abundant sources using photoelectrochemical (PEC) systems is an attractive approach to address the challenges associated with the intermittence of solar energy. In comparison to electrochemical systems, PEC cells directly utilize solar energy as the energy input, and if necessary, then an ad…
A viscoelastic test was made for end-carboxylated polyisoprene (PI-COOH) of the molecular weight M = 30. 5 × 10 3 that underwent the interchain association and dissociation through hydrogen bonding of the COOH groups at the chain end. As a reference, the test was made also for neat PI unimer (with no COOH group at the…
The present work aims to improve the antifouling properties and anticoagulation of poly(vinylidene fluoride) (PVDF) membrane by dual modification. An amphiphilic copolymer of PVDF-g-(polyacryloylmorpholine-(polyacrylic acid)) [PVDF-g-(PACMO-PAA)] was first prepared by the free radical copolymerization. Then argatroban…
Abstract To prevent moisture and oxygen permeation into flexible organic electronic devices formed on substrates, the deposition of an inorganic diffusion barrier material such as SiN x is important for thin film encapsulation. In this study, by a very high frequency (162 MHz) plasma-enhanced chemical vapor deposition…
By means of first-principles calculations we study the structural, magnetic and electronic properties of SrRuO3 surface for the SrO termination. We find that the RuO6 octahedra and the structure of the SrO layers at the surface are strongly modified as well as the Ru-O-Ru bond angles. We find in the thin films a d xy…
The structure, energetics, and transport properties of TiO 2 anatase with different densities of oxygen vacancies are studied by computer simulations using a variety of techniques, ranging from first-principles to Monte Carlo methods, to span different time scales. This work is motivated by the recent development of m…
Abstract Cardiac tissue engineering, which combines cells and biomaterials, is promising for limiting the sequelae of myocardial infarction (MI). We assessed myocardial function and scar evolution after implanting an engineered bioactive impedance graft (EBIG) in a swine MI model. The EBIG comprises a scaffold of dece…
Possessing a small size and C3-symmetrical rigid backbone, a coronene derivative was synthesized from β-cyclodextrins and hexa-cata-hexabenzocoronene, and then a water-soluble and biocompatible nanographene/polysaccharide supramolecular assembly was successfully fabricated through noncovalent interactions between adam…
Biochar (BC) addition to soil is a proposed strategy to enhance soil fertility and crop productivity. However, there is limited knowledge regarding responses of soil respiration and C-cycle enzyme activities to BC and nitrogen (N) additions in a calcareous soil. A 56-day incubation experiment was conducted to investig…
The amino acid sequences of primordial enzymes from extinct organisms can be determined by an in silico approach termed ancestral sequence reconstruction (ASR). In the first step of an ASR, a multiple sequence alignment (MSA) comprising extant homologous enzymes is being composed. On the basis of this MSA and a stocha…
Accumulation of amyloid fibrils is one of the likely key factors leading to the development of Alzheimer's disease and other amyloidosis associated diseases. Magnetic nanoparticles (NPs) have been developed as promising medical materials for many medical applications. In this study, we have explored the effects of Fe3…
We propose a novel mechanism for generating electromagnetically induced transparency (EIT) in a symmetric metamaterial. The proposed metamaterial consists of double nanorod pairs, perpendicular to each other in the form of a 2-by-2 matrix. This metamaterial shows a polarization-independent EIT-like effect without brea…
In this study, we systematically investigate three-dimensional (3D) momentum ($\ensuremath{\hbar}k$)-resolved electronic structures of Ruddlesden-Popper-type iridium oxides ${\mathrm{Sr}}_{n+1}{\mathrm{Ir}}_{n}{\mathrm{O}}_{3n+1}$ using soft-x-ray (SX) angle-resolved photoemission spectroscopy (ARPES). Our results pro…
This paper reports the dielectric relaxation studies of carbon nanotubes loaded in polyester polymer matrix. The study was carried out in the frequency range between 100 Hz and 1 MHz at constant temperature, T = 300 K. The frequency dependence of the electrical data was treated in the frameworks of the impedance Havri…
Organotin complexes of type R2SnClL [where L = Schiff base obtained by the condensation of 2-(4-Bromo/Chloro-benzyloxy)-3-methoxy-benzaldehyde and nicotinic/isonicotinic hydrazides; R = Me, Et, Bu, and Ph] have been synthesized and characterized by elemental analysis, molar conductance, infrared and NMR (1H, 13C, and…
We studied the effects of postsynthesis thermal treatments on material properties of CH 3 NH 3 PbI 3 perovskite films and their photovoltaic performance. Kelvin probe force microscopy revealed the existence of a positive potential barrier at grain boundaries, which is known to be beneficial by suppressing carrier reco…