scholarly journals Understanding the Role of Internal Diffusion Barriers in Pt/Beta Zeolite Catalyzed Isomerization of n ‐Heptane

2019 ◽  
Vol 59 (4) ◽  
pp. 1548-1551 ◽  
Author(s):  
Zhongyuan Guo ◽  
Xin Li ◽  
Shen Hu ◽  
Guanghua Ye ◽  
Xinggui Zhou ◽  
...  
Keyword(s):  
Diffusion Barriers ◽  
Internal Diffusion ◽  
Beta Zeolite

scholarly journals Understanding the Role of Internal Diffusion Barriers in Pt/Beta Zeolite Catalyzed Isomerization of n ‐Heptane

2019 ◽  
Vol 132 (4) ◽  
pp. 1564-1567 ◽  
Author(s):  
Zhongyuan Guo ◽  
Xin Li ◽  
Shen Hu ◽  
Guanghua Ye ◽  
Xinggui Zhou ◽  
...  
Keyword(s):  
Diffusion Barriers ◽  
Internal Diffusion ◽  
Beta Zeolite

scholarly journals Trafficking to the primary cilium membrane

2017 ◽  
Vol 28 (2) ◽  
pp. 233-239 ◽  
Author(s):  
Saikat Mukhopadhyay ◽  
Hemant B. Badgandi ◽  
Sun-hee Hwang ◽  
Bandarigoda Somatilaka ◽  
Issei S. Shimada ◽  
...  
Keyword(s):  
Membrane Proteins ◽  
Signaling Pathways ◽  
Primary Cilium ◽  
Hedgehog Signaling ◽  
Diffusion Barriers ◽  
Disease Pathogenesis ◽  
Ciliary Membrane ◽  
Multiple Organs ◽  
Sensory Reception

The primary cilium has been found to be associated with a number of cellular signaling pathways, such as vertebrate hedgehog signaling, and implicated in the pathogenesis of diseases affecting multiple organs, including the neural tube, kidney, and brain. The primary cilium is the site where a subset of the cell's membrane proteins is enriched. However, pathways that target and concentrate membrane proteins in cilia are not well understood. Processes determining the level of proteins in the ciliary membrane include entry into the compartment, removal, and retention by diffusion barriers such as the transition zone. Proteins that are concentrated in the ciliary membrane are also localized to other cellular sites. Thus it is critical to determine the particular role for ciliary compartmentalization in sensory reception and signaling pathways. Here we provide a brief overview of our current understanding of compartmentalization of proteins in the ciliary membrane and the dynamics of trafficking into and out of the cilium. We also discuss major unanswered questions regarding the role that defects in ciliary compartmentalization might play in disease pathogenesis. Understanding the trafficking mechanisms that underlie the role of ciliary compartmentalization in signaling might provide unique approaches for intervention in progressive ciliopathies.

Role of Silanol Group in Sn-Beta Zeolite for Glucose Isomerization and Epimerization Reactions

ACS Catalysis ◽  
2013 ◽  
Vol 3 (10) ◽  
pp. 2294-2298 ◽  
Author(s):  
Neeraj Rai ◽  
Stavros Caratzoulas ◽  
Dionisios G. Vlachos
Keyword(s):  
Silanol Group ◽  
Beta Zeolite ◽  
Glucose Isomerization

Role of acidity in hydrogenation of cinnamaldehyde on platinum beta zeolite

2004 ◽  
Vol 75 (1-2) ◽  
pp. 149-158 ◽  
Author(s):  
Mohamed Lashdaf ◽  
Ville-Veikko Nieminen ◽  
Marja Tiitta ◽  
Tapani Venäläinen ◽  
Heidi Österholm ◽  
...  
Keyword(s):  
Beta Zeolite

Beta Zeolite as a Catalyst for the Preparation of Alkyl Glucoside Surfactants: The Role of Crystal Size and Hydrophobicity

1997 ◽  
Vol 172 (1) ◽  
pp. 76-84 ◽  
Author(s):  
M.A. Camblor ◽  
A. Corma ◽  
S. Iborra ◽  
S. Miquel ◽  
J. Primo ◽  
...  
Keyword(s):  
Crystal Size ◽  
Beta Zeolite ◽  
Alkyl Glucoside ◽  
Alkyl Glucoside Surfactants

scholarly journals Prominent role of mesopore surface area and external acid sites for the synthesis of polyoxymethylene dimethyl ethers (OME) on a hierarchical H-ZSM-5 zeolite

2019 ◽  
Vol 9 (2) ◽  
pp. 366-376 ◽  
Author(s):  
Christophe J. Baranowski ◽  
Ali M. Bahmanpour ◽  
Florent Héroguel ◽  
Jeremy S. Luterbacher ◽  
Oliver Kröcher
Keyword(s):  
Surface Area ◽  
Acid Site ◽  
Acid Sites ◽  
Internal Diffusion ◽  
Mfi Zeolite ◽  
External Acid Sites ◽  
Polyoxymethylene Dimethyl Ethers ◽  
Zeolite P

By varying acid site accessibility, we demonstrated that polyoxymethylene dimethyl ethers suffered from severe internal diffusion inside a MFI zeolite.

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