Materials Literature
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Broadband Dielectric Spectroscopy was applied to investigate molecular dynamics of two anhydrosaccharides, i.e., 1,6-anhydro-β-D-mannopyranose, anhMAN (hydrogen-bonded system) and 2,3,4-tri-O-acetyl-1,6-anhydro-β-D-glucopyranose, ac-anhGLU (van der Waals material), at different thermodynamic conditions. Moreover, the…
In this paper, a simplified hollow-core photonic crystal fiber surface-enhanced Raman scattering (SERS) probe is presented. Silver nanoprisms are grown with a photoreduction method and account for the SERS, which have better electromagnetic enhancement than spherical silver nanoparticles at 785 nm. Due to the antireso…
A method to fabricate porous silica-coated Au sponges that show high thermal and catalytic stability has been developed for the first time. The method involves dense surface functionalization of Au sponges (made by self-assembly of Au nanoparticles) with thiolated poly(ethylene glycol) (SH-PEG), which provides binding…
mRNA decay is an important strategy by which bacteria can rapidly adapt to their ever-changing surroundings. The 5'-terminus state of mRNA determines the velocity of decay of many types of RNA. In Escherichia coli, RNA pyrophosphohydrolase (RppH) is responsible for the removal of the 5'-terminal triphosphate from hund…
In this contribution, diffusion of water, acetone, and ethanol into a polymer matrix has been studied experimentally and numerically by finite element approaches. Moreover, the present study reports an assessment of different thermomechanical conditions of the shape-memory (SM) performance, for example, stress- or str…
Here, we report the electrochromic effect in undoped Q-carbon. This unique phase of carbon, Q-carbon, is formed by pulsed laser melting of amorphous carbon and subsequent ultrafast quenching process. The excess amount of unpaired electrons near the Fermi energy level in the Q-carbon causes a 48% increase in the optica…
Graphene oxide (GO) foils were modified by irradiation using 1.0 MeV Au + ions, and their elemental composition before and after the ion irradiation was investigated using Rutherford back‐scattering spectroscopy (RBS). The surface morphology was studied using SEM, and changes in elemental composition and structure of…
Abstract A series of aliphatic and aromatic thioethers and dithioethers of s‐triazine were synthesised to study their thermal properties, in particular the thermally induced thiyl radical generation ability. Four symmetric s‐triazine sulfides of the type (RS) 3 C 3 N 3 , namely 2,4,6‐tris(phenylthio)‐ ( 1 ), 2,4,6‐tri…
Silicon carbide (SiC) with epitaxial graphene (EG/SiC) shows a great potential in the applications of electronic and photoelectric devices. The performance of devices is primarily dependent on the interfacial heterojunction between graphene and SiC. Here, the band structure of the EG/SiC heterojunction is experimental…
Transforming thermal energy into electric energy and vice versa needs the decoupling of electrical transport from thermal transport. An innovative strategy is proposed by forming/disrupting electrically triggered conductive nanofilaments within semiconducting thin films to switch thermoelectric properties between two…
Abstract Silver sulfide (Ag 2 S) quantum dots (QDs) exhibit promising candidature for low‐cost solution‐processed photovoltaic devices due to its narrow band gap, high optical absorption coefficient, and being composed of environment friendly materials. In this work, we have synthesized a series of different sized and…
The applications of polymers and their nanocomposites for thermal dissipation/management are limited by their low thermal conductivity and inferior thermal stability due to their disordered molecular chains. In this paper, we experimentally demonstrate the high thermal conductivity in individual suspended PMDA/ODA nan…
In this feature article, we discuss our recent work in the synthesis of novel supramolecular precursors for semiconductor nanocrystals. Metal chalcogenolates that adopt liquid-crystalline phases are employed as single-source precursors that template the growth of shaped solid-state nanocrystals. Supramolecular assembl…
Abstract In order to explore if and how salts comprising polycations and salts comprising polyanions might interact, the [AlBr 4 ] − salt of the [Pt@Bi 10 ] 4+ cluster cation was added to the reaction mixture for the synthesis of the supersphere cluster anion [Ge 24 Sn 36 Se 132 ] 24− from Cs 4 [Ge 4 Se 10 ] ⋅ H 2 O a…
Recently, there have been efforts to realize ultra-sensitive electrical biosensors on 3-D graphene nanostructures like nanowalls or nanopores which can enhance the surface area to volume ratio. But, the signal generated from the nanowall/nanopore structures for low concentration of biomolecules is often insufficient f…
Heart disease continues to be the leading cause of death in the United States. The demand for cardiovascular bypass procedures increases annually. Expanded polytetrafluoroethylene is a popular material for replacement implants, but it does have drawbacks such as high thrombogenicity and low patency, particularly in sm…
In the present study, a new electroslag cladding method by using of the advanced current supplying mold technology was used for manufacturing the high speed steel (HSS)/ductile cast iron (DCI) composite roll. The graphite morphology, matrix microstructure, elements distribution, carbides morphology, and carbides compo…
Abstract Treatment of cancer in the peritoneal cavity may be improved with macroscale drug delivery systems that offer control over intraperitoneal concentration of chemotherapeutic agents. Currently, suitable drug carriers to facilitate a sustained release of small hydrophilic drugs such as mitomycin C are lacking. F…
Field-theoretic simulations (FTSs) are performed on ternary blends of A- and B-type homopolymers of polymerization Nh and symmetric AB diblock copolymers of polymerization Nc. Unlike previous studies, our FTSs are conducted in three-dimensional space, with the help of two new semi-grand canonical ensembles. Motivated…
Abstract In hybrid supercapacitors, lithium‐ion battery (LIB)‐type intercalation materials have slower reaction kinetics than electrical double‐layer‐capacitor‐type carbonaceous materials. Thus, it is of prime importance to improve the rate capability of LIB‐type intercalation materials to achieve high energy density…