Emerging evidence suggests that microRNA, which are well‐conserved, abundant and small regulatory RNA, may be involved in the pathogenesis of human cancers. We recently reported expression let ‐7 was frequently reduced lung cancers, significantly associated with shorter patient survival. Two members double‐stranded RNA‐specific endonuclease family, Dicer Drosha , convert precursor forms microRNA into their mature using a stepwise process. In present study, we examined levels these genes 67...

Abstract Emerging evidence, although currently very sparse, suggests the presence of “lineage-specific dependency” in survival mechanisms certain cancers. TTF-1 has a decisive role as master regulatory transcription factor lung development and maintenance functions terminal respiratory unit (TRU) cells. We show that subset adenocarcinoma cell lines expressing TTF-1, which presumably represent those derived from TRU lineage, exhibit marked dependence on persistent expression TTF-1. The...

Abstract The control of spins and spin to charge conversion in organics requires understanding the molecular spin-orbit coupling (SOC), a means tune its strength. However, quantifying SOC strengths indirectly through relaxation effects has proven difficult due competing mechanisms. Here we present systematic study g -tensor shift semiconductors link it directly strength series high-mobility with strong potential for future devices. results demonstrate rich variability -shifts effective SOC,...

We have clarified a physical guideline for controlling thermoelectric properties of conducting polymers by continuous doping.

A -Pd(III)-Br-Pd(III)-Mott-Hubbard state was observed in a quasi-one-dimensional bromo-bridged Pd compound [Pd(en)2Br](C5-Y)2 x H2O (en = ethylenediamine, C5-Y dipentylsulfosuccinate) for the first time. The phase transition between Mott-Hubbard and charge-density-wave states occurred at 206 +/- 2 K confirmed by using X-ray, ESR, Raman electronic spectroscopies, electrical resistivity, heat capacity. From X-ray powder diffraction patterns spectra of series Pd-Br compounds,...

The microscopic mechanisms behind the very high mobility in rubrene single-crystal transistors achieved by interface treatments with self-assembled monolayers (SAMs) have been clarified using field-induced electron spin resonance (FI-ESR). Clearly observed FI-ESR signals exhibit extremely narrow linewidths owing to carrier mobility. precise angular dependence of $g$ values shows that crystallinity semiconductor channel is unchanged SAM treatments. trapping time charge carriers at directly...

Fluoroalkylsilane (FTS) acts as an efficient p-type dopant for organic semiconductors. FTS-doped films of the semicrystalline PBTTT polymer exhibit relatively high conductivities. We demonstrate that highly doped a metallic nature with clear Pauli paramagnetism observed microscopically using electron spin resonance spectroscopy. The state is realized within crystalline grains, confirmed from anisotropy ESR signal. As service to our authors and readers, this journal provides supporting...

A Br-bridged Pd chain complex with the ion in an uncommon +3 oxidation state, [Pd(dabdOH)2Br]Br2 (3), was prepared using a new method involving multiple hydrogen bonds. The PdBr exhibited superior electrical conductivity and thermal stability. An in-plane ligand additional donor group (hydroxy group), (2S,3S)-2,3-diaminobutane-1,4-diol (dabdOH), used to create multiple-hydrogen-bond network, which effectively shrinks Pd–Br–Pd distance, stabilizing Pd(III) state up its decomposition...

Frontier-orbital design aided in the preparation of novel neutral linear chain rhodium(I,II) complex [Rh(3,6-dbdiox-4,5-Cl2)(CO)2]∞ (see picture), which mixed-valent state is formed by electron transfer between metal d and semiquinonate π* orbitals (3,6-dbdiox-4,5-Cl2: or catecholate 3,6-di-tert-butyl-4,5-dichloro-1,2-benzoquinone). This compound exhibits high conductivity (17–34 S cm−1) at room temperature spite its being a molecule. Supporting information for this article available on WWW...

Ultrathin-film polymeric transistors with controlled in-plane chain orientation have been fabricated based on Langmuir–Blodgett technique by cospreading liquid crystal molecule regioregular poly(3-hexylthiophene). The mobilities parallel to the direction reached 0.001–0.01 cm2/V s for 1 5 monolayer thick transistors. Mobility ratio was about 2 and perpendicular directions. Electron spin resonance (ESR) signals of field-induced polarons exhibited clear anisotropies due unpaired π-electrons....

Ions and electrons in blends of polymer–electrolyte can work ensemble to operate light‐emitting electrochemical cells (LECs), which the unique features situ formed p–n homojunctions offer efficient charge injection transport. However, give rise significant stability speed issues due limited low ion mobility, resulting brightness a slow response LECs. Here, these are overcome by separate control ionic electronic charges, using simple driving pulse superimposed on small base voltage; ions with...

Abstract Backbone rigidity of conjugated polymers is suggested to play an essential role in realizing high-mobility transistors through the efficient interconnection crystalline domains by tie molecules as discussed for recently-developed donor-acceptor (DA)-type copolymers. However, no studies have directly observed interdomain hopping these DA Here, highly-efficient charge transport two typical copolymers from microscopic observation carriers using field-induced electron spin resonance...

Halogen-bridged linear chain metal complexes (MX-Chains) are fascinating compounds that have a quasi-one-dimensional (1D) electronic system. In this study, we synthesized the first Ni-based MX-Chain compound having hydroxy groups, i.e., [Ni(dabdOH)2Br]Br2·[Ni(dabdOHx)2Br]0.5·(2-PrOH)0.25·(MeOH)0.25 (1·solvent, x = ∼0.6, dabdOH (2S,3S)-2,3-diaminobutane-1,4-diol). Single-crystal X-ray diffraction revealed MX-Chains in 1·solvent formed sheets and single-chain structures superlattice. It...

The combination of single-ion magnets (SIMs) and metal-organic frameworks (MOFs) is expected to produce new quantum materials. principal issue be solved in this regard the development strategies for synthesis SIM-MOFs. This work demonstrates a simple strategy SIM-MOFs where diamagnetic MOF used as framework into which SIM sites are doped. 1, 0.5, 0.2 mol% Co(II) ions doped Zn(II) [CH6 N3 ][ZnII (HCOO)3 ]. MOFs perform with positive D term zero-field splitting. longest magnetic relaxation...

Abstract We developed a system to measure the temperature dependence of Seebeck coefficient (S) and electrical conductivity conducting polymers with controlled doping levels, using an electrolyte-gated transistor structure, all based on single sample. In semicrystalline polymer poly[2,5-bis(3-alkylthiophen-2-yl)thieno[3,2-b]thiophene], S shows clear dependence, attributed hopping-like transport in low-doped state. contrast, metal-like behavior dominates highly-doped However, low-temperature...

Through‐space electrical conduction in paddlewheel‐type homovalent dinuclear complexes remains poorly understood, despite the numerous reports on these complexes. Herein, of new Ru2(II,II) with 2‐pyrenecarboxylate (pyrCOO–) ligands, [Ru2(pyrCOO)4X2]∙n(X) (where X = DMF (Ru‐DMF), NMP (Ru‐NMP), DMA (Ru‐DMA)), was investigated. The dimensionality π‐stacking interactions between discrete molecules Ru‐DMA is higher (two‐dimensional) than Ru‐DMF and Ru‐NMP (stair‐like one‐dimensional)....

Co(II) was doped into the diamagnetic one-dimensional framework of bis(dimethylglyoximato) Ni(II) and Pd(II) complex [Ni/Pd II (Hdmg) 2 ] (Hdmg = dimethylglyoximate anion) (hereafter referred to as Co@Ni Co@Pd samples) study magnetic...

State secrets: Mott–Hubbard and charge-density-wave states have been observed in the quasi-1D bromine-bridged Ni Pd complexes [M(chxn)2Br]Br2, respectively, using STM (see image for complex, arrow denotes direction of chain). The spin soliton was also visualized real space Ni-Pd mixed-metal first time. chxn: (1R,2R)-diaminocyclohexane.

Charge carrier concentration in operating field-effect transistor (FET) of regioregular poly(3-hexylthiophene) has been directly determined by electron spin resonance (ESR). ESR signals field-induced polarons are observed around g=2.003 under the application negative gate-source voltage (Vgs). Upon applying drain-source (Vds), intensity decreases linearly low Vds region, reaching to about 50% initial at pinch-off point (Vds≅Vgs). For larger absolute values Vds, it becomes nearly independent....

Charge carrier concentration in operating organic field-effect transistors (OFETs) reflects the electric potential within channel, acting as a key quantity to clarify operation mechanism of device. Here, we demonstrate direct determination charge devices pentacene and poly(3-hexylthiophene) (P3HT) by field-induced electron spin resonance (FI-ESR) spectroscopy. This method sensitively detects polarons induced applying gate voltage, giving clear FI-ESR signal around $g=2.003$ both devices....

Abstract Triethylene glycol, a common side chain, is attached to two different dye moieties, diketopyrrolopyrrole (DPP) and isoindigo (II), their bromo derivative monomers are copolymerized, respectively, with bisstannyl alkylated bithiophene via Stille coupling. The resulting donor–acceptor low‐bandgap copolymers, namely, PTDPP‐DT PTII‐DT, rationally deigned synthesized conjugated polymeric systems suitable for doping. Both polymers successfully investigated as single‐component...

We synthesized a novel iodo-bridged linear chain platinum compound, having the quasi-two-dimensional charge−density−wave (CDW) ground state and smallest band gap. In this we discovered an anomalous valence in boundary region at which CDW phase alternates crystal by means of ESR, X-ray diffuse scattering, STM, electrical resistivity. This can be explained fast fluctuation between PtIV−I···PtII PtII···I−PtIV double well potential. is first observation dynamical among quasi one-dimensional...

Electron spin resonance (ESR) measurements are performed on field-induced charge carriers in high-mobility organic transistors of polycrystalline dioctylbenzothieno[2,3-b]benzothiophene (C${}_{8}$-BTBT) films. The angular dependences the ESR spectra well fitted by orthorhombic $g$ values with largest component ${g}_{Y}$ $=$ 2.0110 nearly parallel to normal direction substrate but tilted 5\ifmmode^\circ\else\textdegree\fi{}. results indicate a highly organized end-on alignment C${}_{8}$-BTBT...