scholarly journals An imidazolium-based zwitterionic polymer for antiviral and antibacterial dual functional coatings

2022 ◽  
Vol 8 (2) ◽  
Author(s):  
Pengyu Chen ◽  
Jiayan Lang ◽  
Yilun Zhou ◽  
Alexandra Khlyustova ◽  
Zheyuan Zhang ◽  
...  
Keyword(s):  
Functional Coatings ◽  
Broad Applicability ◽  
Dual Functional ◽  
Zwitterionic Polymer ◽  
Dual Functions

An imidazolium-based zwitterionic polymer is reported with dual functions of antivirus and antifouling with broad applicability.

scholarly journals Polarization Controlled Dual Functional Reflective Planar Metalens in Near Infrared Regime

Coatings ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 389 ◽  
Author(s):  
Yuhui Zhang ◽  
Bowei Yang ◽  
Zhiying Liu ◽  
Yuegang Fu
Keyword(s):  
Near Infrared ◽  
Polarized Light ◽  
New Method ◽  
Dual Functional ◽  
Light Manipulation ◽  
Reflected Light ◽  
Polarization States ◽  
Dual Functions

The metalens has been a hotspot in scientific communications in recent years. The polarization-controlled functional metalens is appealing in metalens investigation. We propose a metalens with dual functions that are controlled by polarization states. In the first design, when applied with x- and y-polarized light, two focal spots with different focal lengths are acquired, respectively. The proposed metalens performs well when illuminated with adjacent wavelengths. In the second design, the reflected light is focused when applied with x-polarized light, and when applied with y-polarized light, the reflected light is split into two oblique paths. We believe that the results will provide a new method in light manipulation.

scholarly journals Dual functional selenium-substituted hydroxyapatite

2012 ◽  
Vol 2 (3) ◽  
pp. 378-386 ◽  
Author(s):  
Yanhua Wang ◽  
Jun Ma ◽  
Lei Zhou ◽  
Jin Chen ◽  
Yonghui Liu ◽  
...  
Keyword(s):  
Precipitation Method ◽  
Oxygen Species ◽  
Apoptosis Induction ◽  
Selenium Content ◽  
Biological Functions ◽  
Osteosarcoma Cells ◽  
Dual Functional ◽  
Flow Cytometric ◽  
Co Precipitation ◽  
Dual Functions

Hydroxyapatite (HA) doped with trace elements has attracted much attention recently owing to its excellent biological functions. Herein, we use a facile co-precipitation method to incorporate selenium into HA by adding sodium selenite during synthesis. The obtained selenium-substituted HA products are needle-like nanoparticles which have  size and crystallinity that are similar to those of the pure HA nanoparticles (HANs) when the selenium content is low. HANs are found to have the ability to induce the apoptosis of osteosarcoma cells, and the anti-tumour effects are enhanced after incorporation of selenium. Meanwhile, the nanoparticles can also support the growth of bone marrow stem cells. Furthermore, the flow cytometric results indicate that the apoptosis induction of osteosarcoma cells is caused by the increased reactive oxygen species and decreased mitochondrial membrane potential. These results show that the selenium-substituted HANs are potentially promising bone graft materials in osteosarcoma treatment due to their dual functions of supporting normal cell growth and inducing tumour cell apoptosis.

Dual Functional Coatings for Urea to Reduce Ammonia Volatilization and Improve Nutrients Use Efficiency in a Brazilian Corn Crop System

2021 ◽  
Author(s):  
César Ferreira Santos ◽  
Ana Paula Pereira Nunes ◽  
Osnar Obede da Silva Aragão ◽  
Douglas Guelfi ◽  
André Alves de Souza ◽  
...  
Keyword(s):  
Ammonia Volatilization ◽  
Functional Coatings ◽  
Dual Functional ◽  
Corn Crop ◽  
Use Efficiency ◽  
Crop System

Synthesis of VO2/Poly(MMA-co-dMEMUABr) antimicrobial/thermochromic dual-functional coatings

2020 ◽  
Vol 142 ◽  
pp. 105589 ◽  
Author(s):  
Yixian Liu ◽  
William Z. Xu ◽  
Paul A. Charpentier
Keyword(s):  
Functional Coatings ◽  
Dual Functional

Dual-Function, Light Switchable Cobalt Catalysis via Active Site Metamorphosis

2019 ◽  
Author(s):  
Enrico Bergamaschi ◽  
Frédéric Beltran ◽  
Christopher Teskey
Keyword(s):  
Visible Light ◽  
Active Site ◽  
Catalytic Site ◽  
Dual Function ◽  
Catalytic Systems ◽  
Hydride Complex ◽  
Dual Functional ◽  
Multiple Processes ◽  
Olefin Migration

<p></p><p></p><p>Switchable catalysis offers opportunities to control the rate or selectivity of a reaction <i>via</i> a stimulus such as pH or light. However, few examples of switchable catalytic systems that can facilitate multiple processes exist. Here we report a rare example of such dual-functional, switchable catalysis. Featuring an easily prepared, bench-stable cobalt(I) hydride complex in conjunction with pinacolborane, we can completely alter the reaction outcome between two widely employed transformations – olefin migration and hydroboration – with visible light as the sole trigger. This dichotomy arises from ligand photodissociation which leads to metamorphosis of the active catalytic site, resulting in divergent mechanistic pathways.</p><p></p><p></p>

Sign in / Sign up

Export Citation Format

Share Document