scholarly journals Ferroelectric columnar assemblies from the bowl-to-bowl inversion of aromatic cores

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Shunsuke Furukawa ◽  
Jianyun Wu ◽  
Masaya Koyama ◽  
Keisuke Hayashi ◽  
Norihisa Hoshino ◽  
...  
Keyword(s):  
Organic Compounds ◽  
Organic Molecule ◽  
Remanent Polarization ◽  
Organic Molecules ◽  
Materials Science ◽  
State Of The Art ◽  
Condensed Matter ◽  
Small Organic Molecules ◽  
Organic Ferroelectrics ◽  
Potential Use

AbstractOrganic ferroelectrics, in which the constituent molecules retain remanent polarization, represent an important topic in condensed-matter science, and their attractive properties, which include lightness, flexibility, and non-toxicity, are of potential use in state-of-the-art ferroelectric devices. However, the mechanisms for the generation of ferroelectricity in such organic compounds remain limited to a few representative concepts, which has hitherto severely hampered progress in this area. Here, we demonstrate that a bowl-to-bowl inversion of a relatively small organic molecule with a bowl-shaped π-aromatic core generates ferroelectric dipole relaxation. The present results thus reveal an unprecedented concept to produce ferroelectricity in small organic molecules, which can be expected to strongly impact materials science.

OLIGOSACCHARIDE FUNCTIONALIZED NANOFIBROUS MEMBRANE

2006 ◽  
Vol 05 (01) ◽  
pp. 1-11 ◽  
Author(s):  
S. KAUR ◽  
M. KOTAKI ◽  
Z. MA ◽  
R. GOPAL ◽  
S. RAMAKRISHNA ◽  
...  
Keyword(s):  
Organic Molecule ◽  
Organic Waste ◽  
Organic Molecules ◽  
Waste Treatment ◽  
Nanofibrous Membrane ◽  
Selective Agent ◽  
Small Organic Molecules ◽  
Potential Applications ◽  
Nanofibrous Membranes ◽  
Organic Waste Treatment

An attempt was made to incorporate β-Cyclodextrin (β-CD) onto the surface of the nanofiber to target potential applications in organic waste treatment. Phenylcarbomylated and azido phenylcarbomylated β-CD were successfully blended with poly(methyl methacrylate) (PMMA) and electrospun into nanofibrous membrane respectively with an approximate diameter of 900 nm. The presence of this selective agent on the surface of the nanofibers was confirmed by ATR-FTIR and XPS. To determine the functionalized membranes ability to capture small organic molecules, a solution containing phenolphthalein (PHP), a small organic molecule, was used. The results obtained showed that the functionalized nanofibrous membranes were able to effectively capture the PHP molecules. Thus the developed β-CD functionalized nanofibrous membranes may have the potential to capture similar small organic molecules in organic waste.

scholarly journals Bent DNA Bows as Sensing Amplifiers for Detecting DNA-Interacting Salts and Molecules

Sensors ◽  
2020 ◽  
Vol 20 (11) ◽  
pp. 3112
Author(s):  
Jack Freeland ◽  
Lihua Zhang ◽  
Shih-Ting Wang ◽  
Mason Ruiz ◽  
Yong Wang
Keyword(s):  
Organic Molecules ◽  
Inorganic Salts ◽  
Dna Interactions ◽  
Bent Dna ◽  
Small Organic Molecules ◽  
Cellular Processes ◽  
Economic Methods ◽  
Simple Economic ◽  
Potential Use

Due to the central role of DNA, its interactions with inorganic salts and small organic molecules are important. For example, such interactions play important roles in various fundamental cellular processes in living systems and are involved in many DNA-damage related diseases. Strategies to improve the sensitivity of existing techniques for studying DNA interactions with other molecules would be appreciated in situations where the interactions are too weak. Here we report our development and demonstration of bent DNA bows for amplifying, sensing, and detecting the interactions of 14 inorganic salts and small organic molecules with DNA. With the bent DNA bows, these interactions were easily visualized and quantified in gel electrophoresis, which were difficult to measure without bending. In addition, the strength of the interactions of DNA with the various salts/molecules were quantified using the modified Hill equation. This work highlights the amplification effects of the bending elastic energy stored in the DNA bows and the potential use of the DNA bows for quantitatively measuring DNA interactions with small molecules as simple economic methods; it may also pave the way for exploiting the bent DNA bows for other applications such as screening DNA-interacting molecules and drugs.

The effect of solvation and temperature on the adsorption of small organic molecules on calcite

2018 ◽  
Vol 20 (10) ◽  
pp. 7140-7147 ◽  
Author(s):  
A. Budi ◽  
S. L. S. Stipp ◽  
M. P. Andersson
Keyword(s):  
Organic Molecule ◽  
Organic Molecules ◽  
Multicomponent Mixture ◽  
Nonzero Temperature ◽  
Small Organic Molecules ◽  
Small Organic Molecule ◽  
Molecule Adsorption

The effect of multicomponent mixture on small organic molecule adsorption on calcite at nonzero temperature was investigated.

scholarly journals Bent DNA bows as amplifiers and biosensors for detecting DNA-interacting salts and molecules

2020 ◽  
Author(s):  
Jack Freeland ◽  
Lihua Zhang ◽  
Shih-Ting Wang ◽  
Mason Ruiz ◽  
Yong Wang
Keyword(s):  
Organic Molecules ◽  
Inorganic Salts ◽  
Bent Dna ◽  
Dna Damages ◽  
Small Organic Molecules ◽  
Cellular Processes ◽  
Dna Targeting ◽  
Economic Methods ◽  
Potential Use

AbstractDue to the central role of DNA, its interactions with inorganic salts and small organic molecules are important for understanding various fundamental cellular processes in living systems, deciphering the mechanism of many diseases related to DNA damages, and discovering or designing inhibitors and drugs targeting DNA. However, there is still a need for improved sensitivity to detect these interactions, especially in situations where expensive sophisticated equipment is not available. Here we report our development and demonstration of bent DNA bows for amplifying, sensing, and detecting the interactions of 14 inorganic salts and small organic molecules with DNA. With the bent DNA bows, these interactions were easily visualized and quantified in gel electrophoresis, which were difficult to measure without bending. In addition, the strength of the interactions of DNA with the various salts/molecules were quantified using the modified Hill equation. This work highlights the amplification effects of the bending elastic energy stored in the DNA bows and the potential use of the DNA bows for quantitatively measuring DNA interactions with small molecules as simple economic methods; it may also pave the way for exploiting the bent DNA bows for other applications such as monitoring water quality and screening DNA-targeting molecules and drugs.

scholarly journals The Diffuse Interstellar Bands: an Elderly Astro-Puzzle Rejuvenated

2011 ◽  
Vol 7 (S280) ◽  
pp. 162-176 ◽  
Author(s):  
Nick L. J. Cox
Keyword(s):  
Interstellar Medium ◽  
Organic Compounds ◽  
Recent Progress ◽  
Organic Molecules ◽  
Exact Nature ◽  
Diffuse Band ◽  
Small Organic Molecules ◽  
Complex Component ◽  
Diffuse Interstellar Bands ◽  
The Universe

AbstractThe interstellar medium constitutes a physically and chemically complex component of galaxies and is important in the cycle of matter and the evolution of stars. From various spectroscopic clues we now know that the interstellar medium is rich in organic compounds. However, identifying the exact nature of all these components remains a challenge. In particular the identification of the so-called diffuse band carriers has been alluding astronomers for almost a century.In recent decades, observational, experimental and theoretical advances have rapidly lead to renewed interest in the diffuse interstellar bands (DIBs). This has been instigated partly by their perceived relation to the infrared aromatic emission bands, the UV extinction bump and far-UV rise, and the growing number of (small) organic molecules identified in space.This chapter gives an overview of the observational properties and behaviour of the DIBs, and their presence throughout the Universe. I will highlight recent progress in identifying their carriers and discuss their potential as tracers and probes of (extra)-Galactic ISM conditions.

scholarly journals Small organic molecules with tailored structures: initiators in the transition-metal-free C–H arylation of unactivated arenes

RSC Advances ◽  
2020 ◽  
Vol 10 (25) ◽  
pp. 14500-14509 ◽  
Author(s):  
Zhenghui Liu ◽  
Peng Wang ◽  
Yu Chen ◽  
Zhenzhong Yan ◽  
Suqing Chen ◽  
...  
Keyword(s):  
Transition Metal ◽  
Organic Molecule ◽  
Organic Molecules ◽  
Efficient Synthesis ◽  
Small Organic Molecules ◽  
Small Organic Molecule ◽  
Metal Free ◽  
Aryl Iodides

A small organic molecule was tailored for the efficient synthesis of biphenyl and its derivatives from aryl iodides.

CO2-based hydrogen storage: CO2 hydrogenation to formic acid, formaldehyde and methanol

2018 ◽  
Vol 3 (3) ◽  
Author(s):  
Thomas Schaub
Keyword(s):  
Hydrogen Storage ◽  
Formic Acid ◽  
Mobile Applications ◽  
Organic Molecules ◽  
State Of The Art ◽  
Co2 Hydrogenation ◽  
The State ◽  
Reverse Reaction ◽  
Small Organic Molecules ◽  
Hydrogenation Of Co

AbstractThe storage of hydrogen via hydrogenation of CO2to small organic molecules can be attractive for mobile applications. In this article, the state of the art regarding hydrogen storage in Methanol, Formic Acid as well as Formaldehyde and derivates based on CO2hydrogenation is summarized. The reverse reaction, the release of hydrogen from these molecules is also crucial and described in the articles together with possible concepts for the use of hydrogen storage by CO2hydrogenation.

Twisted small organic molecules for high thermoelectric performance of single-walled carbon nanotubes/small organic molecule hybrids through mild charge transfer interactions

2021 ◽  
Author(s):  
Yongjun Jeon ◽  
Jae Gyu Jang ◽  
Sung Hyun Kim ◽  
Jong-In Hong
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Organic Molecule ◽  
Organic Molecules ◽  
Single Walled Carbon Nanotubes ◽  
Thermoelectric Performance ◽  
Hybrid Films ◽  
Small Organic Molecules ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Twisted small organic molecules (SOMs) enhance the thermoelectric performance of single-walled carbon nanotubes (SWCNTs)/SOM hybrid films by dramatically increasing the Seebeck coefficient and minimising the inevitable reduction in electrical conductivity....

Asymmetric small organic molecule-based NIR-II fluorophores for high performance tumor phototheranostics

2021 ◽  
Author(s):  
Qi Wang ◽  
Xinrui Niu ◽  
Lingqiang Yang ◽  
Jia-Wei Liu ◽  
Jing Wang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Small Molecules ◽  
High Purity ◽  
High Performance ◽  
Organic Molecule ◽  
Organic Molecules ◽  
Great Promise ◽  
Small Organic Molecules ◽  
Small Organic Molecule ◽  
Chemical Structures

Small organic molecules hold great promise for phototheranostics due to their well-defined chemical structures and optical properties, excellent biodegradation and biocompatibility, high purity, and outstanding repeatability. Nevertheless, many small molecules...

Sign in / Sign up

Export Citation Format

Share Document