Abstract Mesostructured silica nanoparticles (MSN) and Ni loaded onto MSN (Ni/MSN) for the methanation of CO2 were prepared by the sol–gel and impregnation methods. Catalytic testing was conducted in the temperature range of 423–723 K under atmospheric pressure in the presence of H2. Ni supported on MSN was compared with others types of support such as MCM-41 (Mobile Crystalline …

Engineering/manipulating strategies manoeuvring drug delivery carriers like silica nanoparticles have become an important requisite for many therapeutic

The performance of the MSN(AP) was tested by the adsorption of MB in a batch system under varying pH (2-11), adsorbent dosage (0.1-0.5 g L(-1)), and initial MB concentration (5-60 mg L(-1)). Abstract Large pore mesoporous silica nanoparticles (LP-MSNs) functionalized with poly-L-lysine (PLL) were designed as a new carrier material for gene delivery applications. The synthesized LP-MSNs are 100-200 nm in diameter and are composed of cage-like pores organized in a cubic mesostructure. Mesostructured silica nanoparticles (MSNs) were synthesized with the formation liquid crystalline phases of cetyltrimethylammonium chloride (CTAC) that served as templates for the in-situ polymerization of tetraethyl orthosilicate (TEOS) in alkaline conditions.

Mesostructured silica nanoparticles

Biocompatible mesoporous silica nanoparticles (MSNs) has been being extensively explored for intracellular drug delivery for reversing the MDR of cancer cells, such as intranuclear drug delivery,,,, P-gp siRNA transfection,, and Bcl-2-targeted siRNA delivery. In this study, colloidal 30 nm HSNs were prepared by adding organically bridged alkoxysilane to an aqueous dispersion of mesostructured silica–surfactant composite nanoparticles, and the temporal changes of the morphology and chemical state of the nanoparticles were monitored to elucidate the formation mechanism. Mesoporous silica nanoparticles (MSNs) have garnered a great deal of attention as potential carriers for therapeutic payloads. Here, we report a pH-responsive drug-carrier based on chondroitin sulfate functionalized mesostructured silica nanoparticles (NMChS-MSNs) ie, the amidation between NMChS macromer and amino group functionalized MSNs.

Chemistry (Twin Cities) Materials Research Science & Engineering Center. Research output: Contribution to journal › Article › peer-review. 36 Scopus citations.

Synthesis and shape modiﬁcation of organo-functionalised silica nanoparticles with ordered mesostructured interiors{Sajanikumari Sadasivan,a Deepa Khushalanib and Stephen Mann*a aSchool of

Characterization was conducted using X-ray diffraction, transmission electron micr Request PDF | Cyclodextrin-Functionalized Mesostructured Silica Nanoparticles for Removal of Polycyclic Aromatic Hydrocarbons | Polycyclic aromatic hydrocarbons (PAHs) are the byproducts of the a b s t r a c t Metal-promoted mesostructured silica nanoparticles (MSN) have been studied for CO2 methanation under atmospheric pressure. In term of activities, high activity was observed on Rh/MSN, Ru/MSN, Ni/MSN, Ir/MSN, Fe/MSN and Cu/MSN at and above 623 K. However, on an areal basis, Ni/MSN was the most active catalyst, while Ir/MSN was the poorest catalyst. The catalysts have also been Oxygen Sensing with Perfluorocarbon-Loaded Ultraporous Mesostructured Silica Nanoparticles. Lee AL, Gee CT, Weegman BP, Einstein SA, Juelfs AR, Ring HL, Hurley KR, Egger SM, Swindlehurst G, Garwood M, Pomerantz WCK, Haynes CL. ACS Nano, 11(6):5623-5632, 22 May 2017

In this work, mesostructured silica nanoparticles (MSN(AP)) with high adsorptivity were prepared by a modification with 3-aminopropyl triethoxysilane (APTES) as a pore expander. The performance of the MSN(AP) was tested by the adsorption of MB in a batch system under varying pH (2-11), adsorbent dosage (0.1-0.5 g L(-1)), and initial MB

This result is remarkable because Pt leaching Mesoporous silica nanoparticles are promising materials for various applications, such as drug delivery and catalysis, but the functional roles of surfactants in the formation and preparation of mesostructured silica nanoparticles (MSN-as) remain to be seen.

2.5 nm) and crystalline Pt nanoparticles embedded into the walls of a mesostructured silica framework was found to be highly active in alkene hydrosilylation reaching TONs of ca. 105. In this work, mesostructured silica nanoparticles (MSN(AP)) with high adsorptivity were prepared by a modification with 3-aminopropyl triethoxysilane (APTES) as a pore expander. The performance of the MSN(AP) was tested by the adsorption of MB in a batch system under varying pH (2-11), adsorbent dosage (0.1-0.5 g L(-1)), and initial MB concentration (5-60 mg L(-1)).
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At a low con-centration (<100 μg/mL), LP-MSN-P has low cytotoxicity. Moreover, we also demonstrate that the LP-MSN-P can eﬀectively deliver siRNA into cancer cells and silence the oncogenes. RESULTS AND DISCUSSION Synthesis of Large Pore Mesoporous Silica Nanoparticles (LP-MSNs). Herein, we took advantage of a BF 4 − anion hydrogen bonding strategy to anchor a chiral cationic rhodium/diamine complex within base‐functionalized mesostructured silica nanoparticles conveniently to construct a bifunctional heterogeneous catalyst.

Ultraporous mesostructured silica nanoparticles (UMNs) have large internal cavities (average = 1.8 cm 3 g –1 ), facilitating an average 17% loading efficiency of PFCs, meeting the threshold fluorine concentrations needed for imaging studies. Ultraporous mesostructured silica nanoparticles. Sam M. Egger, Katie R. Hurley, Ashish Datt, Garrett Swindlehurst, Christy L. Haynes. Chemistry (Twin Cities) Materials Research Science & Engineering Center.
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One of the major challenges in medicine is the delivery and control of drug release over time. Current approaches take advantage of mesostructured silica nanoparticles (MSNs) as carriers but suffer several problems including complex synthesis that requires sequential steps for (1) removal of surfactants and (2) functionalization of MSNs to allow Ultraporous mesostructured silica nanoparticles. / Egger, Sam M.; Hurley, Katie R.; Datt, Ashish; Swindlehurst, Garrett ; Haynes, Christy L. In: Chemistry of Materials , Vol. 27, No. 9, 12.05.2015, p. 3193-3196. Incorporation of Pd nanoparticles in mesostructured silica J. Garcia-Martinez a,* , N. Linares a , S. Sinibaldi a , E. Coronado b , A. Ribera b,* a Departamento de Química Inorgánica, Universidad de Alicante, Carretera San Vicente s/n, E-03690 Alicate, Spain Poor permeation across intestinal mucous barriers often limits the oral delivery of prospective therapeutic proteins and peptides (TPPs).