Layer-by-Layer Self-Assembly of Metal/Metal Oxide Superstructures: Self-Etching Enables Boosted Photoredox Catalysis

2020 ◽  
Vol 59 (6) ◽  
pp. 4129-4139 ◽  
Author(s):  
Hua-Jian Lin ◽  
Shuai Xu ◽  
Xiao-Yan Fu ◽  
Zhi-Quan Wei ◽  
Ming-Hui Huang ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Self Assembly ◽  
Layer By Layer ◽  
Photoredox Catalysis ◽  
Metal Metal

Directed self-assembly of dual metal ions with ligands: towards the synthesis of noble metal/metal oxide composites with controlled facets

2018 ◽  
Vol 54 (16) ◽  
pp. 2044-2047 ◽  
Author(s):  
Fang Cui ◽  
Jiajia Zhang ◽  
Qing Shao ◽  
Linxu Xu ◽  
Xinzi Pan ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Metal Ions ◽  
Noble Metal ◽  
Self Assembly ◽  
Large Scale ◽  
Assembly Strategy ◽  
Metal Metal ◽  
Exposed Facet ◽  
Dual Metal ◽  
Oxide Composites

Despite numerous reports on noble metal/metal oxide composites, the control of the exposed facet is still a great challenge. Here, the large-scale synthesis of noble metal/metal oxide spheres with controlled facets is enabled by making use of a bottom-up self-assembly strategy.

General self-assembly of metal/metal chalcogenide heterostructures initiated by a surface linker: modulating tunable charge flow toward versatile photoredox catalysis

2019 ◽  
Vol 7 (37) ◽  
pp. 21182-21194 ◽  
Author(s):  
Tao Li ◽  
Ming-Hui Huang ◽  
Yu-Bing Li ◽  
Xiao-Cheng Dai ◽  
Yunhui He ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Self Assembly ◽  
Photoredox Catalysis ◽  
Interfacial Charge Transfer ◽  
Metal Chalcogenide ◽  
Assembly Strategy ◽  
Metal Metal ◽  
Surface Ligand ◽  
Charge Flow ◽  
Interfacial Charge

Interfacial charge transfer over metal/metal chalcogenide heterostructures was finely tuned by a facile, green, scalable, and simple yet efficient surface ligand-triggered self-assembly strategy for multifarious photoredox catalysis.

Modulating Unidirectional Charge Transfer via in Situ Etching-Accompanied Layer-By-Layer Self-Assembly toward Multifarious Photoredox Catalysis

2019 ◽  
Vol 123 (46) ◽  
pp. 28066-28080 ◽  
Author(s):  
Hua-Jian Lin ◽  
Tao Li ◽  
Ming-Hui Huang ◽  
Xiao-Cheng Dai ◽  
Yu-Bing Li ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Self Assembly ◽  
Layer By Layer ◽  
Photoredox Catalysis

Aluminum textile-based binder-free nanostructured battery cathodes using a layer-by-layer assembly of metal/metal oxide nanoparticles

2021 ◽  
Vol 8 (1) ◽  
pp. 011405
Author(s):  
Donghyeon Nam ◽  
Minseong Kwon ◽  
Yongmin Ko ◽  
June Huh ◽  
Seung Woo Lee ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Metal Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Layer By Layer ◽  
Layer By Layer Assembly ◽  
Metal Metal ◽  
Binder Free ◽  
Layer Assembly

Antibacterial Activity of Photocatalytic Metal Oxide Thin Films Deposited by Layer-by-Layer Self-Assembly

2021 ◽  
Vol 21 (5) ◽  
pp. 2855-2863
Author(s):  
Pedro J. Rivero ◽  
Joseba Esparza ◽  
Ricardo San Martín ◽  
Ana I. Vitas ◽  
Gonzalo G. Fuentes ◽  
...  
Keyword(s):  
Thin Films ◽  
Antibacterial Activity ◽  
Metal Oxide ◽  
Self Assembly ◽  
Metal Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Layer By Layer ◽  
Water Contact ◽  
Vis Spectroscopy ◽  
Polymeric Chains

This paper reports the use of the Layer-by-Layer self-assembly (LbL) as an efficient technique for the fabrication of thin-films with antibacterial activity. The LbL coatings are composed of a positive polyelectrolyte such as Poly(allylamine hydrochloride) (PAH) and an anionic polyelectrolyte such as Poly(sodium 4-styrene sulfonate) solution (PSS). In addition, these polyelectrolytes can be also used as an adequate encapsulating agent of specific metal oxide precursors such as titanium dioxide (TiO2) and iron oxide (Fe2O3) nanoparticles, making possible the fabrication of hybrid thin films composed of organic polymeric chains related to the polyelectrolytes and inorganic structure associated to the metal oxide nanoparticles. Four different LbL coatings have been fabricated and a comparative study about the resultant topographical, optical and wettability properties is presented by using light interferometry, atomic force microscopy (AFM), UV-Vis spectroscopy and water contact angle (WCA) measurements. In addition, X-ray fluorescence (XRF) has been also employed in order to corroborate the presence of metal oxide precursors inside the polymeric chains of the polyelectrolytes. Finally, the antibacterial tests have demonstrated that LbL coatings composed of metal oxide nanoparticles produce an enhancement in the efficacy and antibacterial activity.

scholarly journals Erratum: “Aluminum textile-based binder-free nanostructured battery cathodes using a layer-by-layer assembly of metal/metal oxide nanoparticles” [Appl. Phys. Rev. 8, 011405 (2021)]

2021 ◽  
Vol 8 (2) ◽  
pp. 029901
Author(s):  
Donghyeon Nam ◽  
Minseong Kwon ◽  
Yongmin Ko ◽  
June Huh ◽  
Seung Woo Lee ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Metal Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Layer By Layer ◽  
Layer By Layer Assembly ◽  
Metal Metal ◽  
Binder Free ◽  
Layer Assembly

Construction of Enzymatic Biodegradable Multilayered Film via Layer-by-Layer Self-Assembly to Control Release of DNA

2004 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
K. Ren ◽  
J. Ji ◽  
J. Shen
Keyword(s):  
Self Assembly ◽  
Control Release ◽  
Layer By Layer ◽  
Multilayered Film

scholarly journals Construction of Chitosan/Alginate Nano-Drug Delivery System for Improving Dextran Sodium Sulfate-Induced Colitis in Mice

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1884
Author(s):  
Mengfei Jin ◽  
Shangyong Li ◽  
Yanhong Wu ◽  
Dandan Li ◽  
Yantao Han
Keyword(s):  
Self Assembly ◽  
Average Diameter ◽  
Mucosal Healing ◽  
Plga Nanoparticles ◽  
Narrow Particle Size Distribution ◽  
Layer By Layer ◽  
Systemic Side Effects ◽  
Assembly Technology ◽  
The Fourier Transform ◽  
Polyelectrolyte Film

(1) Background: In the treatment of ulcerative colitis (UC), accurate delivery and release of anti-inflammatory drugs to the site of inflammation can reduce systemic side effects. (2) Methods: We took advantage of this goal to prepare resveratrol-loaded PLGA nanoparticles (RES-PCAC-NPs) by emulsification solvent volatilization. After layer-by-layer self-assembly technology, we deposited chitosan and alginate to form a three-layer polyelectrolyte film. (3) Results: It can transport nanoparticles through the gastric environment to target inflammation sites and slowly release drugs at a specific pH. The resulting RES-PCAC-NPs have an ideal average diameter (~255 nm), a narrow particle size distribution and a positively charged surface charge (~13.5 mV). The Fourier transform infrared spectroscopy showed that resveratrol was successfully encapsulated into PCAC nanoparticles, and the encapsulation efficiency reached 87.26%. In addition, fluorescence imaging showed that RES-PCAC-NPs with positive charges on the surface can effectively target and accumulate in the inflammation site while continuing to penetrate downward to promote mucosal healing. Importantly, oral RES-PCAC-NPs treatment in DSS-induced mice was superior to other results in significantly improved inflammatory markers of UC. (4) Conclusions: Our results strongly prove that RES-PCAC-NPs can target the inflamed colon for maximum efficacy, and this oral pharmaceutical formulation can represent a promising formulation in the treatment of UC.

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