Controlled fabrication of bi-functional Fe3O4@SiO2@Gd2O3:Yb,Er nanoparticles and their magnetic, up-conversion luminescent properties

RSC Advances ◽  
2014 ◽  
Vol 4 (84) ◽  
pp. 44575-44582 ◽  
Author(s):  
Peng Jing ◽  
Qin Wang ◽  
Baocang Liu ◽  
Guangran Xu ◽  
Yanbing Zhang ◽  
...  
Keyword(s):  
Luminescent Properties ◽  
Deposition Process ◽  
Layer By Layer ◽  
Layer Deposition

We develop a facile layer-by-layer deposition process to create bi-functional Fe3O4@SiO2@Gd2O3:Yb,Er nanostructures composed of magnetic Fe3O4 cores, variable SiO2 mid-layers, and up-converting Gd2O3 shells.

Mechanically Stable Antireflection and Antifogging Coatings Fabricated by the Layer-by-Layer Deposition Process and Postcalcination

Langmuir ◽  
2008 ◽  
Vol 24 (19) ◽  
pp. 10851-10857 ◽  
Author(s):  
Lianbin Zhang ◽  
Yang Li ◽  
Junqi Sun ◽  
Jiacong Shen
Keyword(s):  
Deposition Process ◽  
Layer By Layer ◽  
Layer Deposition

Self-assembled multilayer surfaces of highly fluorescent spirobifluorene-based dye for label-free protein recognition

2019 ◽  
Vol 7 (32) ◽  
pp. 4933-4939
Author(s):  
Friederike Schlüter ◽  
Bart Jan Ravoo ◽  
Fabio Rizzo
Keyword(s):  
Deposition Process ◽  
Protein Recognition ◽  
Layer By Layer ◽  
Label Free ◽  
Free Protein ◽  
Layer Deposition ◽  
Self Assembled ◽  
New Sensors

New sensors for the recognition of proteins on glass and quartz surfaces were developed in a straightforward layer-by-layer deposition process.

Characterization of mechanical behavior in repaired FC300 using directly deposited AISI-P21 and AISI-H13 metal powders

2019 ◽  
Vol 234 (1-2) ◽  
pp. 157-169
Author(s):  
Jae-Hyun Yu ◽  
Ki Yong Lee ◽  
Do-Sik Shim ◽  
Sang-Hu Park
Keyword(s):  
Metal Layer ◽  
Deposition Process ◽  
Layer By Layer ◽  
Metal Powders ◽  
Hardness Tests ◽  
Layer Deposition ◽  
Material Usage ◽  
Aisi H13 ◽  
Molten Droplets

Remanufacturing is a promising technique for reducing manufacturing costs and material usage. This work presents a method for repairing casting parts using an additive metal-layer deposition process. To determine characteristics and mechanical properties of parts repaired using the proposed additive metal-layer-deposition-based method, tensile specimens were designed with grooves measuring 1 mm and 3 mm in depth. Two specific metal powders, AISI-P21 (SCM440) and AISI-H13 (SKD61), were melted using a highly focused laser, and molten droplets were subsequently built up layer-by-layer to fill-in the grooves. Mechanical and metallurgical characteristics of repaired parts were investigated via tensile and hardness tests and microstructural analyses. Experimental results demonstrate that the ultimate strength of specimens repaired using the proposed additive metal-layer deposition method measured approximately 9% lower compared with that of FC300. However, the mechanical strength of additive metal-layer deposition specimen was increased about 22% compared with that of welded specimen. Through this work, we can make a conclusion that the additive metal-layer deposition technique is well-suited for the repair and reproduction of castings.

scholarly journals An eco-friendly and effective method to fabricate flame retardant cotton fabrics

2021 ◽  
Vol 293 ◽  
pp. 01022
Author(s):  
Xiaotao Zhang ◽  
Chunrong Zhou ◽  
Haifeng Pan
Keyword(s):  
Flame Retardancy ◽  
Fire Safety ◽  
Deposition Process ◽  
Cotton Fabrics ◽  
Environmentally Benign ◽  
Layer By Layer ◽  
Char Residue ◽  
Safety Properties ◽  
Lbl Assembly ◽  
Layer Deposition

To reduce the flammability of cotton fabrics, an environmentally benign, simple and effective method was proposed. Coatings composed of phosphoguanidine/ATMP/alginate were deposited on the surface of the cotton fabrics through layer-by-layer (LbL) assembly. FTIR spectra indicate that the layer-by-layer deposition process is successfully carried out on the surface of cotton fabrics. TGA suggested that LbL coating can significantly increase the char residue. The results of MCC and vertical flame tests showed that the LbL coatings can remarkably enhance the fire safety properties of the cotton fabrics and a higher concentration of ATMP (2 wt%) can bring better effect of flame retardancy.

Synthesis of orthogonally reactive multilayered microcapsules

2020 ◽  
Vol 56 (57) ◽  
pp. 7853-7856 ◽  
Author(s):  
Angana Borbora ◽  
Uttam Manna
Keyword(s):  
Addition Reaction ◽  
Conjugate Addition ◽  
Deposition Process ◽  
Layer By Layer ◽  
Sequential Deposition ◽  
Layer Deposition

An orthogonally chemically reactive microcapsule is derived from a single polymer following a layer-by-layer-deposition process, where a 1,4 conjugate addition reaction provided a basis for sequential deposition of a chemically reactive nanocomplex.

scholarly journals Indication of Highly Correlated Electron Transport in Disordered Multilayer Ferritin Structures

2021 ◽  
Author(s):  
Christopher Rourk ◽  
Yunbo Huang ◽  
Minjing Chen ◽  
Cai Shen
Keyword(s):  
Quantum Dots ◽  
Electron Transport ◽  
Deposition Process ◽  
Layer By Layer ◽  
Electrical Characteristics ◽  
Correlated Electron ◽  
Layer Deposition ◽  
Highly Correlated

Tests of devices using a layer-by-layer deposition process for forming multilayer arrays of ferritin have been previously reported that indicate that highly-correlated electron transport is occurring, consistent with models of electron transport in quantum dots. The parametric tests reported in this paper were performed to evaluate this reported evidence in greater detail. As shown herein, the evidence from these studies establishes that layer-by-layer deposition of ferritin does not result in consistent formation of disordered multilayer ferritin structures (DMFS) that are sufficient to create devices that provide repeatable electrical characteristics, but can nonetheless provide additional evidence of highly-correlated electron transport.

Use of a Ruthenium-Containing Conjugated Polymer as a Photosensitizer in Photovoltaic Devices Fabricated by a Layer-by-Layer Deposition Process

Langmuir ◽  
2006 ◽  
Vol 22 (7) ◽  
pp. 3368-3375 ◽  
Author(s):  
Ka Yan Kitty Man ◽  
Hei Ling Wong ◽  
Wai Kin Chan ◽  
Aleksandra B. Djurišić ◽  
Elvin Beach ◽  
...  
Keyword(s):  
Conjugated Polymer ◽  
Deposition Process ◽  
Layer By Layer ◽  
Photovoltaic Devices ◽  
Layer Deposition
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