Post‐Synthesis Functionalization Enables Fine‐Tuning the Molecular‐Sieving Properties of Zeolites for Light Olefin/Paraffin Separations

2021 ◽  
pp. 2105398
Author(s):  
Hae Sol Lee ◽  
Nam Sun Kim ◽  
Dong‐il Kwon ◽  
Su‐Kyung Lee ◽  
Muhammad Numan ◽  
...  
Keyword(s):  
Fine Tuning ◽  
Light Olefin ◽  
Post Synthesis ◽  
Molecular Sieving

scholarly journals Post‐Synthesis Functionalization Enables Fine‐Tuning the Molecular‐Sieving Properties of Zeolites for Light Olefin/Paraffin Separations (Adv. Mater. 48/2021)

2021 ◽  
Vol 33 (48) ◽  
pp. 2170376
Author(s):  
Hae Sol Lee ◽  
Nam Sun Kim ◽  
Dong‐il Kwon ◽  
Su‐Kyung Lee ◽  
Muhammad Numan ◽  
...  
Keyword(s):  
Fine Tuning ◽  
Light Olefin ◽  
Post Synthesis ◽  
Molecular Sieving

scholarly journals Correction: Topology meets MOF chemistry for pore-aperture fine tuning: ftw-MOF platform for energy-efficient separations via adsorption kinetics or molecular sieving

2018 ◽  
Vol 54 (52) ◽  
pp. 7251-7251
Author(s):  
Dong-Xu Xue ◽  
Amandine Cadiau ◽  
Łukasz J. Weseliński ◽  
Hao Jiang ◽  
Prashant M. Bhatt ◽  
...  
Keyword(s):  
Adsorption Kinetics ◽  
Energy Efficient ◽  
Fine Tuning ◽  
Molecular Sieving

Correction for ‘Topology meets MOF chemistry for pore-aperture fine tuning: ftw-MOF platform for energy-efficient separations via adsorption kinetics or molecular sieving’ by Dong-Xu Xue et al., Chem. Commun., 2018, DOI: 10.1039/c8cc03841d.

Effect of Ligand Exchange on the Stability and Optical Properties of CdSe Quantum Dots

2007 ◽  
Vol 1056 ◽  
Author(s):  
Jacqueline T. Siy ◽  
Lindsay Leone ◽  
Michael H. Bartl
Keyword(s):  
Quantum Dots ◽  
Ligand Exchange ◽  
Size Reduction ◽  
Fine Tuning ◽  
Nanocrystal Quantum Dots ◽  
The Stability ◽  
Post Synthesis ◽  
Control Of Parameters ◽  
Amine Ligand ◽  
Solvent Volume

ABSTRACTA new post-synthesis heat/ligand-exchange treatment on CdSe nanocrystal quantum dots that allows fine-tuning the quantum dots size without losing important properties (e.g. photoluminescence) is presented. The careful control of parameters such as the reaction temperature, the quantum dot to alkyl-amine ligand mole ratio and the solvent volume is shown to provide tunable size reduction of the nanocrystals. This size reduction phenomenon provides new insights into the surface chemistry and stability of nanocrystals and can serve as a platform for designing, controlling and processing nanomaterials with tailored properties.

Fine-Tuning Window Apertures in ZIF-8/67 Frameworks by Metal Ions and Temperature for High-Efficiency Molecular Sieving of Xylenes

2021 ◽  
Author(s):  
Daniil M. Polyukhov ◽  
Artem S. Poryvaev ◽  
Aleksandr S. Sukhikh ◽  
Sergey A. Gromilov ◽  
Matvey V. Fedin
Keyword(s):  
Metal Ions ◽  
High Efficiency ◽  
Fine Tuning ◽  
Molecular Sieving

scholarly journals Microfluidic Formulation of DNA-Loaded Multicomponent Lipid Nanoparticles for Gene Delivery

Pharmaceutics ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1292
Author(s):  
Erica Quagliarini ◽  
Serena Renzi ◽  
Luca Digiacomo ◽  
Francesca Giulimondi ◽  
Barbara Sartori ◽  
...  
Keyword(s):  
Cell Surface ◽  
Particle Density ◽  
Transfection Efficiency ◽  
Human Keratinocytes ◽  
Lipid Nanoparticles ◽  
Fine Tuning ◽  
Hek 293 ◽  
Research Fields ◽  
Post Synthesis ◽  
Human Primary Keratinocytes

In recent years, lipid nanoparticles (LNPs) have gained considerable attention in numerous research fields ranging from gene therapy to cancer immunotherapy and DNA vaccination. While some RNA-encapsulating LNP formulations passed clinical trials, DNA-loaded LNPs have been only marginally explored so far. To fulfil this gap, herein we investigated the effect of several factors influencing the microfluidic formulation and transfection behavior of DNA-loaded LNPs such as PEGylation, total flow rate (TFR), concentration and particle density at the cell surface. We show that PEGylation and post-synthesis sample concentration facilitated formulation of homogeneous and small size LNPs with high transfection efficiency and minor, if any, cytotoxicity on human Embryonic Kidney293 (HEK-293), spontaneously immortalized human keratinocytes (HaCaT), immortalized keratinocytes (N/TERT) generated from the transduction of human primary keratinocytes, and epidermoid cervical cancer (CaSki) cell lines. On the other side, increasing TFR had a detrimental effect both on the physicochemical properties and transfection properties of LNPs. Lastly, the effect of particle concentration at the cell surface on the transfection efficiency (TE) and cell viability was largely dependent on the cell line, suggesting that its case-by-case optimization would be necessary. Overall, we demonstrate that fine tuning formulation and microfluidic parameters is a vital step for the generation of highly efficient DNA-loaded LNPs.

scholarly journals Special Issue: Application of Photoactive Nanomaterials in Degradation of Pollutants

Materials ◽  
2019 ◽  
Vol 12 (15) ◽  
pp. 2459
Author(s):  
Roberto Comparelli
Keyword(s):  
Gas Phase ◽  
Potential Application ◽  
Organic Pollutant ◽  
Water Disinfection ◽  
Fine Tuning ◽  
Synthetic Approach ◽  
Special Issue ◽  
Photoactive Materials ◽  
Post Synthesis ◽  
Degradation Of Pollutants

Photoactive nanomaterials are receiving increasing attention due to their potential application to light-driven degradation of water and gas-phase pollutants. However, to exploit the strong potential of photoactive materials and access their properties require a fine tuning of their size/shape dependent chemical-physical properties and on the ability to integrate them in photo-reactors or to deposit them on large surfaces. Therefore, the synthetic approach, as well as post-synthesis manipulation could strongly affect the final photocatalytic properties of nanomaterials. The potential application of photoactive nanomaterials in the environmental field includes the abatement of organic pollutant in water, water disinfection, and abatement of gas-phase pollutants in outdoor and indoor applications.

A mild post-synthesis oxidative treatment of Pd-In/HOPG bimetallic catalysts as a tool of their surface structure fine tuning

2022 ◽  
Vol 571 ◽  
pp. 151350
Author(s):  
M.A. Panafidin ◽  
A.V. Bukhtiyarov ◽  
I.P. Prosvirin ◽  
I.A. Chetyrin ◽  
A. Yu Klyushin ◽  
...  
Keyword(s):  
Surface Structure ◽  
Bimetallic Catalysts ◽  
Fine Tuning ◽  
Oxidative Treatment ◽  
Post Synthesis

Topology meets MOF chemistry for pore-aperture fine tuning: ftw-MOF platform for energy-efficient separations via adsorption kinetics or molecular sieving

2018 ◽  
Vol 54 (49) ◽  
pp. 6404-6407 ◽  
Author(s):  
Dong-Xu Xue ◽  
Amandine Cadiau ◽  
Łukasz J. Weseliński ◽  
Hao Jiang ◽  
Prashant M. Bhatt ◽  
...  
Keyword(s):  
Adsorption Kinetics ◽  
Energy Efficient ◽  
Fine Tuning ◽  
Molecular Sieving

The MBB approach permitted the construction of a highly stable ftw-MOF for intricate separations.

Fine-Tuning Futures

ASHA Leader ◽  
2017 ◽  
Vol 22 (6) ◽  
Author(s):  
Christi Miller
Keyword(s):  
Fine Tuning

Food Safety Security: A new Concept for Enhancing Food Safety Measures

2012 ◽  
Vol 82 (3) ◽  
pp. 216-222 ◽  
Author(s):  
Venkatesh Iyengar ◽  
Ibrahim Elmadfa
Keyword(s):  
Food Safety ◽  
Hazard Analysis ◽  
Warning System ◽  
Shared Responsibility ◽  
Fine Tuning ◽  
Strategic Action ◽  
Surveillance Network ◽  
Measurement Systems ◽  
Critical Control Points ◽  
The Impact

The food safety security (FSS) concept is perceived as an early warning system for minimizing food safety (FS) breaches, and it functions in conjunction with existing FS measures. Essentially, the function of FS and FSS measures can be visualized in two parts: (i) the FS preventive measures as actions taken at the stem level, and (ii) the FSS interventions as actions taken at the root level, to enhance the impact of the implemented safety steps. In practice, along with FS, FSS also draws its support from (i) legislative directives and regulatory measures for enforcing verifiable, timely, and effective compliance; (ii) measurement systems in place for sustained quality assurance; and (iii) shared responsibility to ensure cohesion among all the stakeholders namely, policy makers, regulators, food producers, processors and distributors, and consumers. However, the functional framework of FSS differs from that of FS by way of: (i) retooling the vulnerable segments of the preventive features of existing FS measures; (ii) fine-tuning response systems to efficiently preempt the FS breaches; (iii) building a long-term nutrient and toxicant surveillance network based on validated measurement systems functioning in real time; (iv) focusing on crisp, clear, and correct communication that resonates among all the stakeholders; and (v) developing inter-disciplinary human resources to meet ever-increasing FS challenges. Important determinants of FSS include: (i) strengthening international dialogue for refining regulatory reforms and addressing emerging risks; (ii) developing innovative and strategic action points for intervention {in addition to Hazard Analysis and Critical Control Points (HACCP) procedures]; and (iii) introducing additional science-based tools such as metrology-based measurement systems.

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