Nanomaterials have been prepared over a wide range of length scales from nanoscopic objects to bulk structural materials. Recent investigations focused on the regulation and control structures for modulation properties even macroscopic objects. As an emerging concept, nanoarchitectonics has proposed as technology system be used arranging nanoscale units--i.e., nanostructure unit group atoms or molecules--in predesignated configuration. In this review, we summarize recent research...

Although significant efforts were devoted to improving the properties of conductive polymers, effects solvent and supporting electrolytes on morphology electrochromic features electropolymerized materials have been scantly investigated. In this work, polymerization conditions, such as solvents electrolytes, morphological structure PEDOT films systematically studied. Surprisingly, we find a very effect small electrolyte effect. We show that also strongly correlate with properties. Films...

Carboxyl groups at the periphery of reduced graphene oxide (RGO) sheets are converted to amine by reaction with N-hydroxysuccinimide and 1,3-diaminopropane, a free-radical polymerization initiator is anchored RGO sheets. Poly(acrylamide) (PAM) polymer brushes on (RGO/PAM) synthesized in situ polymerization. The heavy metals, Pb(II), benzenoid compounds, methylene blue, (MB) were selected adsorbed RGO/PAM composites, adsorption capacity for Pb(II) MB was measured. experimental data isotherms...

The first highly conductive polyselenophene, namely, poly(3,4-ethylenedioxyselenophene) (PEDOS), was synthesized by taking advantage of a novel method for efficiently contracting the selenophene ring. PEDOS shows relatively low band gap (1.4 eV), very high stability in oxidized state, and well-defined spectroelectrochemistry.

This study was undertaken to investigate the role of mouse double minute 2 (MDM2) oncogene in prostate cancer growth and potential MDM2 as a target for therapy. An antisense anti-human–MDM2 mixed-backbone oligonucleotide tested human models with various p53 statuses, LNCaP (p53 wt/wt ), DU145 mt/mt PC3 null ). In dose- time-dependent manner, it specifically inhibited expression modified several genes, at both mRNA protein levels. cells, p53, p21, Bax, hypophosphorylated retinoblastoma tumor...

The global environment has been variously compromised leading to problems such as warming and radioactive contamination. In this feature article, we will focus especially on materials for environmental remediation based the concept of nanoarchitectonics. topics are classified into three categories: removal degradation toxic substances including waste due fossil fuel usage organic pollutants (continuously arising problems), current emerging concerning oil spills nuclear (current urgent...

Electrochemical-coupling layer-by-layer (ECC-LbL) assembly is introduced as a novel fabrication methodology for preparing layered thin films. This method allows us to covalently immobilize functional units (e.g., porphyrin, fullerene, and fluorene) into films having desired thicknesses designable sequences both homo- heteroassemblies while ensuring efficient layer-to-layer electronic interactions. Films were prepared using conventional electrochemical setup by simple inexpensive process from...

A novel family of electrochromic materials has been discovered. The electropolymerized poly(hexyl-3,4-ethylenedioxyselenophene) film switches color between a highly absorbing pure blue and nearly colorless bleached state, achieves both high contrast ratio 88–89% CE up to 773 cm2 C−1 while showing fast switching time remarkable stability with the remaining 48% after 10000 cycles. Detailed facts importance specialist readers are published as "Supporting Information". Such documents...

Polythiophene (PTh) was electrochemically polymerized onto the multiwalled carbon nanotube (MWCNT) modified paper by a galvanostatic method in an oil-in-ionic liquid microemulsion (O/IL). The as-prepared PTh/MWCNT composite had interlaced framework morphology, which MWCNTs were uniformly coated PTh with thickness of 2–3 nm. capacitive performance tested 1 mol L−1 Na2SO4 solution. results showed that film favorable capacitance high electron transfer rate and low resistance. highest specific...

Silver and photothermal therapy (PTT) have been widely used for eradicating the drug-resistant bacteria. However, risks of excess silver humans low efficiency PTT still limit their in vivo therapeutic application. Integration two distinctive bactericides into one entity is a promising platform to improve antimicrobial agents.In this study, chemo-photothermal based on polydopamine (PDA)-coated gold nanorods (GNRs) was developed. The PDA coating acquired high Ag+ ions loading Cy5-SE...

Much attention has been paid to the application of low temperature thermal resources, especially for power generation in recent years. Most current commercialized (including geothermal) power-generation technologies convert energy electric indirectly, that is, making mechanical work before producing electricity. Technology using a thermoelectric generator (TEG), however, can directly transform into electricity through Seebeck effect. TEG technology many advantages such as compactness,...

Spatial electronic communications of chromophores are both theoretically and practically fascinating. Despite intramolecular or intermolecular exciton coupling was observed in multichromophoric oligomers J-aggregates, respectively, it is unusual that they occur the same molecule. Herein, ethene-bridged aza-BODIPY dimers with splitting have been developed. By encapsulating dimer into F-127 polymer, J-type aggregated nanoparticles were produced, which showed obvious dramatically redshifted...

A systematic study of the electrochemical, spectroelectrochemical and electrochromic (EC) properties poly(alkyl-3,4-ethylenedioxyselenophene) (PEDOS-Cn) (n = 0, 2, 4, 6, 8 12) films is reported. The alkyl substituents lead PEDOS-Cn to exhibit sharper redox peaks than parent PEDOS film raise an onset their oxidation potentials by 0.20−0.62 V. As expected, introduction chains significantly improves EC electrochemical stability results in high contrast ratios coloration efficiencies, low...

Staying on a plane: Even small substituents the backbone of conjugated polymers can cause them to twist significantly, lowering conjugation and leading wider band gaps. Oligo- polyselenophenes are more rigid than their thiophene analogues, maintain planarity low gap with that otherwise considerable twisting. The picture shows two selenophene dimers; Se magenta, S yellow. Detailed facts importance specialist readers published as "Supporting Information". Such documents peer-reviewed, but not...

We have implemented a new noninvasive multiobjective tracking system, which can be used for localization of an endoscope and monitoring heart valve prostheses gastrointestinal transit solid oral dosage forms or nutrients. The marker is modeled as magnetic dipole, the field at some point regarded summation those from three dipoles. By minimizing squared errors values between measurements calculation using hybrid particle swarm optimization (PSO) algorithm clone algorithm, iterative result...

Abstract Preparation and characterization of poly( N ‐isopropylacrylamide) (PNIPAM) polymer brushes on the surfaces reduced graphene oxide (RGO) sheets based click chemistry reversible addition‐fragmentation chain transfer (RAFT) polymerization was reported. RGO prepared by thermal reduction were modified diazonium salt propargyl p ‐aminobenzoate, alkyne‐functionalized obtained. RAFT agent (CTA) grafted to reaction. PNIPAM polymerization. Fourier transform‐infrared spectroscopy,...

Deep eutectic solvents (DESs), featured as promising green solvents, were applied to examine their effectiveness in pretreating raw ramie fibers (RFs) for cellulose nanofibril (CNF) production. The pretreatment performance of three DESs, i.e., choline chloride–urea (CU), chloride–oxalic acid dihydrate (CO), and chloride–glycerol (CG), was evaluated based on chemical composition analysis structural morphological changes. CO attained the most dramatic changes RFs, followed by CG CU. Its high...