Results 61 to 70 of about 35,853 (285)

Preparation of SBA-15 and Zr-SBA-15 materials by direct-synthesis and pH-adjustment methods

Materials Letters, 2021
SBA-15 mesoporous silica materials with zirconium atoms incorporated into its structure were prepared by two methods: direct-synthesis and pH-adjustment. Two nominal ratios of Zr/Si = 0 and 0.10 were evaluated. N2-physisorption, X-ray powder diffraction (XRPD) and, X-ray Photoelectron Spectroscopy (XPS) revealed that the morphology and structural order
J. Colmenares-Zerpa, R.J. Chimentão, F. Gispert-Guirado, A.F. Peixoto, J. Llorca   +4 more
openaire   +2 more sources

Acetic acid hydroconversion over mono-and bimetallic indium doped catalysts supported on alumina and silicas of various textures [PDF]

, 2014
Consecutive hydroconversion of acetic acid (AA) to ethanol was compared over monometallic and novel bimetallic (containing In as guest metal) catalysts on alumina and silica supports (inter alia highly ordered SBA-15) of different porosity and pore ...
Badari, Cecília Andrea, Drotár, Eszter, Harnos, Szabolcs, Kalló, Dénes, Klébert, Szilvia, Onyestyák, György   +5 more
core   +1 more source

Role of Epoxide Functionalization of Amines for Development of Direct Air Capture Sorbents with High Cyclic Working Capacity at Low Desorption Temperatures

Advanced Science, EarlyView.
Appropriate butylene oxide (BO) functionalization of amines (polyethyleneimine (PEI1200 and PEI300) and tris(2‐aminoethyl)amine (TREN)) enables excellent cyclic working capacities (WCcyclic) at low desorption temperatures (40−70°C). Notably, 0.30BO‐PEI300‐SY and 0.54BO‐TREN‐SY show the highest WCcyclic at 45 and 40°C, respectively.
Joo Yeon Han, Hayoung Jeong, Younghyu Ko, Yohan Cho, Seenu Ravi, Kyu‐Min Ryoum, Hyug Hee Han, Yujin Choi, Chaewon Shin, Jeong Woo Han, Youn‐Sang Bae   +10 more
wiley   +1 more source

Scalable Engineering of Bio‐Manufactured Extracellular Vesicles for Selective Delivery in Ovarian Cancer Patient‐Derived Models

Advanced Science, EarlyView.
Engineered extracellular vesicles displaying Ephrin‐B2 selectively target Ephrin‐B4–expressing ovarian cancer cells, enabling precise delivery in patient‐derived models. This scalable bio‐manufacturing platform reveals a versatile strategy to exploit Ephrin signaling for highly specific therapeutic payload delivery and motivates exploration of tailored
Nihar Godbole, Andrew Lai, Alexander Quinn, Marianne Gillard, Dominic Guanzon, Katherin Scholz‐Romero, Alexis Salas‐Burgos, Bastián Lillo Dapremont, Rohan Lourie, Naven Chetty, Richard Lobb, Kate Beecher, Amy E. McCart Reed, Kaltin Ferguson, Biao Sun, Yaowu He, John D. Hooper, Carlos Salomon   +17 more
wiley   +1 more source

The role of the coherence length for the establishment of global phase coherence in three-dimensional arrays of ultra-thin quasi-one-dimensional superconducting Pb and NbN nanowires

, 2017
We have fabricated 5 nm ultra-thin NbN nanowires that form a dense and regular array in the linear channels of mesoporous SBA-15 silica substrates. Bulk NbN is a well-known classical superconductor with Tc of 16 K.
He, Minquan, Hu, Xijun, Lam, Frank L. Y., Lortz, Rolf, Shen, Junying, Wong, Chi Ho   +5 more
core   +2 more sources

Comparison of silver nanoparticles confined in nanoporous silica prepared by chemical synthesis and by ultra-short pulsed laser ablation in liquid [PDF]

, 2014
Hexagonally ordered mesoporous silica materials MCM-41 and SBA-15 have been synthesized and loaded with Ag nanoparticles, utilizing both chemical synthesis and ultra-short pulsed laser ablation in liquid. In laser ablation, a silver target, immersed in
de Bonis, Annalisa, De Stefanis, Adriana, Guarnaccio, Ambra, Orlando, S., Popova, Margarita, Sansone, M., Santagata, Antonio, Szegedi, Ágnes, Teghil, R., Valyon, József   +9 more
core   +1 more source

Biosynthesis of Sciadonic Acid Derived from Gymnosperms with Anti‐Colitis Activity

Advanced Science, EarlyView.
This study establishes an efficient Yarrowia lipolytica platform for unusual sciadonic acid (SCA) production and assess the anti‐colitis efficacy in mice of SCA, supporting its potential as a novel therapeutic lipid. ABSTRACT Sciadonic acid (SCA), Δ5‐unsaturated fatty acid with anti‐inflammatory and lipid‐regulatory properties, is predominantly derived
Yadi Gao, Wei Liu, Xiuping Liang, Jie Bai, Hong Chang, Wenchao Chen, Mohamed A. Farag, Jianbo Xiao, Huifeng Jiang, Jiasheng Wu, Lili Song   +10 more
wiley   +1 more source

Molecular Clusters in Mesoporous Materials as Precursors to Nanoparticles of a New Lacunar Ternary Compound PdxMoyP [PDF]

, 2008
Bimetallic clusters of composition Pd2Mo2(g5-C5H5)2(l3-CO)2(l2-CO)4 (PR3)2 (R = ethyl or phenyl) were incorporated by impregnation from solution into two different silica matrices, amorphous xerogels and ordered SBA-15, and a study of their thermal ...
A. M. Eberhardt, B. A. Morrow, B. Lebeau, B. Pawelec, B. Sellberg, C. Estournès, C. T. Kresge, D. N. Mastronarde, D. Zhao, D. Zhao, E. P. Barrett, F. Schweyer-Tihay, F. Schweyer-Tihay, J. Rosé, J.-L. Paillaud, M. B. Fernandez, M. C. Carrión, M. Saïd Zina, O. Ersen, O. Ersen, P. Braunstein, P. Braunstein, P. Croizat, P. Rabu, R. Navarro, S. Brunauer, S. Grosshans-Vièles, S. Kawi, S. L. Brock, S. V. Oryshchyn, Z. Paal   +30 more
core   +3 more sources

Recent Advances and Challenges in Ammonia‐Hydrogen Energy Conversion

Advanced Science, EarlyView.
This work summarizes the latest progress of various catalytic methods in ammonia‐hydrogen energy conversion. The challenges and outlook of ammonia‐hydrogen energy conversion system are also emphasized. This work expects to build a blueprint of renewable and efficient ammonia‐hydrogen energy conversion systems under mild conditions.
Menghao Lv, Runchao Qin, Jianshuo Chen, Kaiwen Yang, Jianwei Lu, Weiwei Lei, Yifu Yu   +6 more
wiley   +1 more source

Green Methodology for Producing Bioactive Nanocomposites of Mesoporous Silica Support for Silver and Gold Nanoparticles Against E. coli and S. aureus

Technologies
This study considered and compared silver, gold, and their combination of nanoparticles (AgNPs, AuNPs, and Au-AgNPs) with biocompatible material mesoporous silica SBA-15 as potential antibacterial agents.
Una Stamenović, Dijana Mašojević, Maja Kokunešoski, Mojca Otoničar, Slađana Davidović, Srečo Škapin, Tanja Barudžija, Dejan Pjević, Tamara Minović Arsić, Vesna Vodnik   +9 more
doaj   +1 more source