Dynamics of a Water Nanodrop through a Holey Graphene Matrix: Role of Surface Functionalization, Capillarity, and Applied Forcing

2018 ◽  
Vol 122 (23) ◽  
pp. 12243-12250 ◽  
Author(s):  
Yanbin Wang ◽  
Shayandev Sinha ◽  
Kunal Ahuja ◽  
Parth Rakesh Desai ◽  
Jiaqi Dai ◽  
...  
Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1026
Author(s):  
Elisa Chiodi ◽  
Allison M. Marn ◽  
Matthew T. Geib ◽  
M. Selim Ünlü

The importance of microarrays in diagnostics and medicine has drastically increased in the last few years. Nevertheless, the efficiency of a microarray-based assay intrinsically depends on the density and functionality of the biorecognition elements immobilized onto each sensor spot. Recently, researchers have put effort into developing new functionalization strategies and technologies which provide efficient immobilization and stability of any sort of molecule. Here, we present an overview of the most widely used methods of surface functionalization of microarray substrates, as well as the most recent advances in the field, and compare their performance in terms of optimal immobilization of the bioreceptor molecules. We focus on label-free microarrays and, in particular, we aim to describe the impact of surface chemistry on two types of microarray-based sensors: microarrays for single particle imaging and for label-free measurements of binding kinetics. Both protein and DNA microarrays are taken into consideration, and the effect of different polymeric coatings on the molecules’ functionalities is critically analyzed.


2016 ◽  
Vol 18 (45) ◽  
pp. 30946-30953 ◽  
Author(s):  
Damien Magne ◽  
Vincent Mauchamp ◽  
Stéphane Célérier ◽  
Patrick Chartier ◽  
Thierry Cabioc'h

The role of the surface groups in chemical bonding in two dimensional Ti3C2is evidenced at the nano-object level.


2020 ◽  
Vol 124 (10) ◽  
pp. 1898-1908 ◽  
Author(s):  
Thodsaphon Lunnoo ◽  
Jirawat Assawakhajornsak ◽  
Sukhum Ruangchai ◽  
Theerapong Puangmali

2016 ◽  
Vol 91 (2) ◽  
pp. 667-676 ◽  
Author(s):  
Jong Kwon Lee ◽  
A Young Jeong ◽  
Jiyeong Bae ◽  
Ji Hyun Seok ◽  
Jun-Young Yang ◽  
...  

2014 ◽  
Vol 183 ◽  
pp. 39-46 ◽  
Author(s):  
R.N. Lokesh ◽  
L. Balakrishnan ◽  
K. Jeganathan ◽  
Samar Layek ◽  
H.C. Verma ◽  
...  

2021 ◽  
Vol 22 (23) ◽  
pp. 12968
Author(s):  
Manuel A. Valdés-Madrigal ◽  
Fernando Montejo-Alvaro ◽  
Amelia S. Cernas-Ruiz ◽  
Hugo Rojas-Chávez ◽  
Ramon Román-Doval ◽  
...  

Nitrogen oxides (NOx) are among the main atmospheric pollutants; therefore, it is important to monitor and detect their presence in the atmosphere. To this end, low-dimensional carbon structures have been widely used as NOx sensors for their outstanding properties. In particular, carbon nanotubes (CNTs) have been widely used as toxic-gas sensors owing to their high specific surface area and excellent mechanical properties. Although pristine CNTs have shown promising performance for NOx detection, several strategies have been developed such as surface functionalization and defect engineering to improve the NOx sensing of pristine CNT-based sensors. Through these strategies, the sensing properties of modified CNTs toward NOx gases have been substantially improved. Therefore, in this review, we have analyzed the defect engineering and surface functionalization strategies used in the last decade to modify the sensitivity and the selectivity of CNTs to NOx. First, the different types of surface functionalization and defect engineering were reviewed. Thereafter, we analyzed experimental, theoretical, and coupled experimental–theoretical studies on CNTs modified through surface functionalization and defect engineering to improve the sensitivity and selectivity to NOx. Finally, we presented the conclusions and the future directions of modified CNTs as NOx sensors.


2018 ◽  
Vol 47 (25) ◽  
pp. 8320-8329 ◽  
Author(s):  
Dominika Wawrzyńczyk ◽  
Bartłomiej Cichy ◽  
Wiesław Stęk ◽  
Marcin Nyk

The synthesis and surface functionalization of ZnO nanoparticles were performed, with attention being paid to the possible bio-related applications in light-triggered reactive oxygen species generation.


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