scholarly journals High-performance asymmetric isoporous nanocomposite membranes with chemically-tailored amphiphilic nanochannels

2020 ◽  
Vol 8 (19) ◽  
pp. 9554-9566 ◽  
Author(s):  
Zhenzhen Zhang ◽  
Md. Mushfequr Rahman ◽  
Clarissa Abetz ◽  
Volker Abetz
Keyword(s):  
Small Molecules ◽  
High Performance ◽  
Nanocomposite Membrane ◽  
Nanocomposite Membranes

An isoporous nanocomposite membrane is fabricated and displays the potential to separate small molecules with good antifouling and high permeance.

High-performance reverse osmosis nanocomposite membranes containing the mixture of carbon nanotubes and graphene oxides

2015 ◽  
Vol 3 (13) ◽  
pp. 6798-6809 ◽  
Author(s):  
Hee Joong Kim ◽  
Min-Young Lim ◽  
Kyung Hwa Jung ◽  
Dong-Gyun Kim ◽  
Jong-Chan Lee
Keyword(s):  
Carbon Nanotubes ◽  
Reverse Osmosis ◽  
High Performance ◽  
Polymeric Matrix ◽  
Nanocomposite Membrane ◽  
Nanocomposite Membranes ◽  
Graphene Oxides ◽  
Synergistic Combinations

Nanocomposite membrane containing CNTs and GO exhibits considerably improved performances by the synergistic combinations of CNTs and GO, which can increase the dispersity in a polymeric matrix.

High Performance and Chlorine Resistant Carbon Nanotube/Aromatic Polyamide Reverse Osmosis Nanocomposite Membrane

MRS Advances ◽  
2016 ◽  
Vol 1 (20) ◽  
pp. 1469-1476 ◽  
Author(s):  
Rodolfo Cruz-Silva ◽  
Shigeki Inukai ◽  
Takumi Araki ◽  
Aaron Morelos-Gomez ◽  
Josue Ortiz-Medina ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Reverse Osmosis ◽  
High Performance ◽  
Mechanical Stability ◽  
Interfacial Polymerization ◽  
Polymer Network ◽  
Water Desalination ◽  
Nanocomposite Membrane ◽  
Nanocomposite Membranes ◽  
Reverse Osmosis Membranes

ABSTRACTEfficient water desalination constitutes a major challenge for the next years and reverse osmosis membranes will play a key role to achieve this target. In this work, a high-performance reverse osmosis nanocomposite membrane was prepared by interfacial polymerization in presence of multiwalled carbon nanotubes. The effect of carbon nanotubes on the chlorine resistance, antifouling and desalination performance of the nanocomposite membranes was studied. We found that the addition of carbon nanotubes not only improved the membrane performance in terms of flow and antifouling, but also inhibited the chlorine degradation of these membranes. Several reports have acknowledged the benefits of adding carbon nanotubes to aromatic PA nanocomposite membranes, but little attention has been paid to the mechanisms related to the improvement of flow rate, selectivity and chlorine tolerance. We carried out a comprehensive study of the chemical and physical effects of carbon nanotubes on the fully crosslinked polyamide network. The chemical structure, chlorine resistance and membrane degradation was studied by several analytical techniques, permeation and fouling studies, whereas the microstructure of the nanocomposite was studied by small and wide angle X-ray scattering, high resolution transmission electron microscopy, and molecular dynamics. We found that the addition of the nanotube affects the interfacial polymerization, resulting in a polymer network with smaller pore size and higher sodium and chlorine rejection. We simulated the hydration of the membrane in seawater and found that the radial distribution function of water confined in the pores of the nanocomposite membrane exhibited smaller clusters of water molecules, thus suggesting a dense membrane structure. We analysed the network mobility and found that the nanotube provides mechanical stability to the polymer matrix. This study presents solid evidence towards more efficient and robust reverse osmosis membranes using carbon nanotubes as mechanical reinforcing and chlorine protection additive.

A recent overview on the porphyrin-based π-extended small molecules as donors and acceptors for high-performance organic solar cells

2021 ◽  
Author(s):  
Venkatesh Piradi ◽  
Feng Yan ◽  
Xunjin Zhu ◽  
Wai-Yeung Raymond Wong
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
High Performance ◽  
Cost Effective ◽  
Effective Alternative ◽  
The Past ◽  
Cost Effective Alternative ◽  
Silicon Based

Organic solar cells (OSCs) have been considered as a promising cost-effective alternative to silicon-based solar cell counterparts due to their lightweight, mechanical flexibility, and easy fabrication features. Over the past...

High performance solution-processable tetrathienoacene (TTAR) based small molecules for organic field effect transistors (OFETs)

2017 ◽  
Vol 53 (43) ◽  
pp. 5898-5901 ◽  
Author(s):  
Sureshraju Vegiraju ◽  
Deng-Yi Huang ◽  
Pragya Priyanka ◽  
Yo-Shan Li ◽  
Xian-Lun Luo ◽  
...  
Keyword(s):  
Small Molecules ◽  
Field Effect ◽  
High Performance ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
Solution Processable

DDTT-TTARexhibits the highest mobility of 0.81 cm2V−1s−1.

Preparation of a porous polymer monolithic column with an ionic liquid as a porogen and its applications for the separation of small molecules in high performance liquid chromatography

2015 ◽  
Vol 7 (18) ◽  
pp. 7879-7888 ◽  
Author(s):  
Jiafei Wang ◽  
Xiaoya Jiang ◽  
Hang Zhang ◽  
Sha Liu ◽  
Ligai Bai ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Small Molecules ◽  
Small Molecule ◽  
High Performance ◽  
Monolithic Column ◽  
Porous Polymer ◽  
Column Efficiency ◽  
Polymer Monolithic Column

A monolith based on an ionic liquid as a porogen was prepared to enhance the column efficiency of small molecule separation in HPLC.

Separation of Small Molecules by High-Performance Capillary Electrophoresis

1992 ◽  
pp. 301-341 ◽  
Author(s):  
Charles W. Demarest ◽  
Elizabeth A. Monnot-Chase ◽  
James Jiu ◽  
Robert Weinberger
Keyword(s):  
Capillary Electrophoresis ◽  
Small Molecules ◽  
High Performance ◽  
High Performance Capillary Electrophoresis

scholarly journals An Overview of Molecular Modeling for Drug Discovery with Specific Illustrative Examples of Applications

Molecules ◽  
2019 ◽  
Vol 24 (9) ◽  
pp. 1693 ◽  
Author(s):  
Maral Aminpour ◽  
Carlo Montemagno ◽  
Jack A. Tuszynski
Keyword(s):  
Drug Discovery ◽  
Small Molecules ◽  
High Performance ◽  
Current Status ◽  
General Area ◽  
Dna Translocation ◽  
Computer Aided Drug Design ◽  
Major Significance ◽  
In Silico Modeling ◽  
Performance Computing

In this paper we review the current status of high-performance computing applications in the general area of drug discovery. We provide an introduction to the methodologies applied at atomic and molecular scales, followed by three specific examples of implementation of these tools. The first example describes in silico modeling of the adsorption of small molecules to organic and inorganic surfaces, which may be applied to drug delivery issues. The second example involves DNA translocation through nanopores with major significance to DNA sequencing efforts. The final example offers an overview of computer-aided drug design, with some illustrative examples of its usefulness.

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