scholarly journals Performing a catalysis reaction on filter paper: development of a metal palladium nanoparticle-based catalyst

2019 ◽  
Vol 1 (1) ◽  
pp. 342-346 ◽  
Author(s):  
Yili Zhao ◽  
Lei Liu ◽  
Daniel Shi ◽  
Xiangyang Shi ◽  
Mingwu Shen
Keyword(s):  
Filter Paper ◽  
Palladium Nanoparticles ◽  
High Performance ◽  
Palladium Nanoparticle ◽  
Catalytic Applications

Palladium nanoparticles can be facilely immobilized onto filter paper via mediation by polyethylenimine for high-performance catalytic applications.

The assembly of polyethyleneimine-entrapped gold nanoparticles onto filter paper for catalytic applications

RSC Advances ◽  
2015 ◽  
Vol 5 (126) ◽  
pp. 104239-104244 ◽  
Author(s):  
Lei Liu ◽  
Yili Zhao ◽  
Qian Chen ◽  
Xiangyang Shi ◽  
Mingwu Shen
Keyword(s):  
Gold Nanoparticles ◽  
Electrostatic Interaction ◽  
Filter Paper ◽  
High Performance ◽  
Catalytic Applications

Polyethyleneimine-entrapped gold nanoparticles can be assembled onto filter paper via electrostatic interaction for high-performance catalytic applications.

scholarly journals Aggregate Removal Nanofiltration of Human Serum Albumin Solution Using Nanocellulose-Based Filter Paper

Biomedicines ◽  
2020 ◽  
Vol 8 (7) ◽  
pp. 209 ◽  
Author(s):  
Lulu Wu ◽  
Athanasios Mantas ◽  
Simon Gustafsson ◽  
Levon Manukyan ◽  
Albert Mihranyan
Keyword(s):  
Human Serum Albumin ◽  
Serum Albumin ◽  
Human Serum ◽  
Filter Paper ◽  
High Performance ◽  
Size Exclusion ◽  
Transmembrane Pressure ◽  
Protein Loss ◽  
Virus Removal ◽  
Model Virus

This study is dedicated to the rapid removal of protein aggregates and viruses from plasma-derived human serum albumin (HSA) product to reduce the risk of viral contamination and increase biosafety. A two-step filtration approach was implemented to first remove HSA aggregates and then achieve high model virus clearance using a nanocellulose-based filter paper of different thicknesses, i.e., 11 μm (prefilter) and 22 μm (virus filter) at pH 7.4 and room temperature. The pore size distribution of these filters was characterized by nitrogen gas sorption analysis. Dynamic light scattering (DLS) and size-exclusion high performance liquid chromatography (SE-HPLC) were performed to analyze the presence of HSA aggregates in process intermediates. The virus filter showed high clearance of a small-size model virus, i.e., log10 reduction value (LRV) > 5, when operated at 3 and 5 bar, but a distinct decrease in LRV was detected at 1 bar, i.e., LRV 2.65–3.75. The throughput of HSA was also dependent on applied transmembrane pressure as was seen by Vmax values of 110 ± 2.5 L m−2 and 63.6 ± 5.8 L m−2 at 3 bar and 5 bar, respectively. Protein loss was low, i.e., recovery > 90%. A distribution of pore sizes between 40 nm and 60 nm, which was present in the prefilter and absent in the virus filter, played a crucial part in removing the HSA aggregates and minimizing the risk of virus filter fouling. The presented results enable the application of virus removal nanofiltration of HSA in bioprocessing as an alternative to virus inactivation methods based, e.g., on heat treatment.

Preparation of nanocellulose/filter paper (NC/FP) composite membranes for high-performance filtration

Cellulose ◽  
2018 ◽  
Vol 26 (2) ◽  
pp. 1183-1194 ◽  
Author(s):  
Zhiguo Wang ◽  
Wenwen Zhang ◽  
Juan Yu ◽  
Lijun Zhang ◽  
Liang Liu ◽  
...  
Keyword(s):  
Filter Paper ◽  
High Performance ◽  
Composite Membranes

Plasmonic Coupling of One-Dimensional Palladium Nanoparticle Chains

NANO ◽  
2020 ◽  
Vol 15 (05) ◽  
pp. 2050060
Author(s):  
Salem Marhaba ◽  
Samaya El Samad
Keyword(s):  
Palladium Nanoparticles ◽  
Near Infrared ◽  
Localized Surface Plasmon ◽  
Spectral Amplitude ◽  
Ultraviolet Region ◽  
Spectral Position ◽  
Palladium Nanoparticle ◽  
Extinction Cross Section ◽  
Plasmonic Coupling ◽  
Nanoparticle Chains

In this paper, we investigate the plasmonic coupling effects on the localized surface plasmon resonances (LSPRs) of palladium nanoparticle chains. We show the transmission electron microscopy (TEM) images and the extinction cross-section spectra of near-contact palladium nanoparticle chains from monomer to pentamer. The extinction spectra of chains nanoparticles were measured by far-field polarization spectroscopy over a large spectral range (ultraviolet, visible and near-infrared) and compared with numerical calculations based on finite element method (FEM). For single palladium nanoparticle, the LSPR phenomenon appears in ultraviolet region. By addition of palladium nanoparticles to the chain, we observe a tunable red-shifting on the spectral position due to plasmonic coupling between palladium nanoparticles and a systematic spectral amplitude enhancement with the appearance of new modes of resonance.

Adhesive Catalyst Immobilization of Palladium Nanoparticles on Cotton and Filter Paper: Applications to Reusable Catalysts for Sequential Catalytic Reactions

2014 ◽  
Vol 356 (5) ◽  
pp. 951-960 ◽  
Author(s):  
Takashi Nishikata ◽  
Hironori Tsutsumi ◽  
Lei Gao ◽  
Keisuke Kojima ◽  
Katsumi Chikama ◽  
...  
Keyword(s):  
Filter Paper ◽  
Palladium Nanoparticles ◽  
Catalytic Reactions ◽  
Catalyst Immobilization

High-Performance Polypyrrole Coated Filter Paper Electrode for Flexible All-Solid-State Supercapacitor

2020 ◽  
Vol 167 (14) ◽  
pp. 140533
Author(s):  
Jiali Zhang ◽  
Qing Chen ◽  
Haixia Zhang ◽  
Ying Hou ◽  
Junjie Guo
Keyword(s):  
Solid State ◽  
Filter Paper ◽  
High Performance

Ultralong Hydroxyapatite Nanowire-Based Filter Paper for High-Performance Water Purification

2019 ◽  
Vol 11 (4) ◽  
pp. 4288-4301 ◽  
Author(s):  
Qiang-Qiang Zhang ◽  
Ying-Jie Zhu ◽  
Jin Wu ◽  
Yue-Ting Shao ◽  
An-Yong Cai ◽  
...  
Keyword(s):  
Water Purification ◽  
Filter Paper ◽  
High Performance
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