Determination of folic acid by capillary zone electrophoresis with indirect chemiluminescence detection.

A capillary electrophoresis method with on-line inhibited chemiluminescence (CL) detection was first used to determine folic acid (FA). This method was established based on the quenching effect of FA on the CL reaction of luminol with a Ag(iii) complex in alkaline medium. The separation was conducted with a 20.

How biological elements interact with language: The biolinguistic inquiry.

Biolinguistics realizes a scientific approach to study language both as a biological object (the language faculty) and an internal, intensional and individual language system (I-language), spurring a cross-disciplinary exploration of the biological nature of human language. The poverty of stimulus (POS) in language acquisition, together with the roles played by neurobiological factors in linguistic aphasia, specific language impairment and mirror deficits, confirms the biological nature of the language faculty and I-language. Based on the property, the classic molecular genetic study reveals how human genetic endowments canalize the development of human language, and they interact with specific linguistic experience during the maturation of human language.

Polymorphism in new thienothiophene-thiazolothiazole organic semiconductors.

The front cover artwork is provided by J. A. Schneider from D.

Polymorphism in new thienothiophene-thiazolothiazole organic semiconductors.

Charge transport in organic semiconductors is heavily influenced by their solid-state packing. To separate intermolecular packing effects from molecular electronic effects, we have synthesized two polymorphs of crystalline thienothiophene-thiazolothiazole trimers and studied them by DFT calculations, optical spectroscopy, single-crystal X-ray diffraction and charge-transport measurements in field-effect transistors. One polymorph was found to be a p-type semiconductor with a hole mobility of 3.

Supramolecular control of organic p/n-heterojunctions by complementary hydrogen bonding.

The supramolecular structure of organic semiconductors (OSCs) is the key parameter controlling their performance in organic electronic devices, and thus methods for controlling their self-assembly in the solid state are of the upmost importance. Recently, we have demonstrated the co-assembly of p- and n-type organic semiconductors through a three-point hydrogen-bonding interaction, utilizing an electron-rich dipyrrolopyridine (P2P) heterocycle which is complementary to naphthalenediimides (NDIs) both in its electronic structure and H bonding motif. The hydrogen-bonding-mediated co-assembly between P2P donor and NDI acceptor leads to ambipolar co-crystals and provides unique structural control over their solid-state packing characteristics.

C-9 fluorenyl substituted anthracenes: a promising new family of blue luminescent materials.

Syntheses, optical, and electrochemical properties of novel C-9 fluorenyl substituted anthracenes linked by a tetrahedral sp(3)-hybridized carbon atom are reported for blue light emitting materials. Remarkably, an unoptimized organic light-emitting diode based on 1-fold fluorene-functionalized anthracene 3 exhibits a radiance of 4100 cd/m(2) at 12 V and a maximum EL efficiency of 1.36 cd/A with color purity CIE x, y (0.