Does Water Affect the Acidity of Surfaces? The Proton-Donating Ability of Silanol and Carboxylic Acid Groups at Mesoporous Silica

ChemPhysChem ◽  
2012 ◽  
Vol 13 (9) ◽  
pp. 2282-2285 ◽  
Author(s):  
Andrey A. Gurinov ◽  
Daniel Mauder ◽  
Dilek Akcakayiran ◽  
Gerhard H. Findenegg ◽  
Ilya G. Shenderovich
Keyword(s):  
Carboxylic Acid ◽  
Mesoporous Silica ◽  
Carboxylic Acid Groups

Ordered cubic mesoporous silica KIT-5 functionalized with carboxylic acid groups for dye removal

RSC Advances ◽  
2014 ◽  
Vol 4 (90) ◽  
pp. 49061-49069 ◽  
Author(s):  
Juti Rani Deka ◽  
Yu-Hsuan Lin ◽  
Hsien-Ming Kao
Keyword(s):  
Carboxylic Acid ◽  
Mesoporous Silica ◽  
Dye Removal ◽  
Carboxylic Acid Groups ◽  
Cubic Mesoporous

Synthesis of Cu nanoparticles in mesoporous silica SBA-15 functionalized with carboxylic acid groups

2011 ◽  
Vol 47 (8) ◽  
pp. 2288-2290 ◽  
Author(s):  
Ching-Shiun Chen ◽  
Chen-Chih Chen ◽  
Ching-Ting Chen ◽  
Hsien-Ming Kao
Keyword(s):  
Carboxylic Acid ◽  
Mesoporous Silica ◽  
Cu Nanoparticles ◽  
Carboxylic Acid Groups

scholarly journals Grafting TRAIL through Either Amino or Carboxylic Groups onto Maghemite Nanoparticles: Influence on Pro-Apoptotic Efficiency

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 502
Author(s):  
Hanene Belkahla ◽  
Andrei Alexandru Constantinescu ◽  
Tijani Gharbi ◽  
Florent Barbault ◽  
Alexandre Chevillot-Biraud ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Cancer Therapy ◽  
Computational Study ◽  
Carcinoma Cells ◽  
Maghemite Nanoparticles ◽  
Carboxylic Acid Groups ◽  
Lung Carcinoma Cells ◽  
Biological Studies ◽  
Apoptotic Effect ◽  
Carboxylic Groups

Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) is a member of the TNF cytokine superfamily. TRAIL is able to induce apoptosis through engagement of its death receptors DR4 and DR5 in a wide variety of tumor cells while sparing vital normal cells. This makes it a promising agent for cancer therapy. Here, we present two different ways of covalently grafting TRAIL onto maghemite nanoparticles (NPs): (a) by using carboxylic acid groups of the protein to graft it onto maghemite NPs previously functionalized with amino groups, and (b) by using the amino functions of the protein to graft it onto NPs functionalized with carboxylic acid groups. The two resulting nanovectors, NH-TRAIL@NPs-CO and CO-TRAIL@NPs-NH, were thoroughly characterized. Biological studies performed on human breast and lung carcinoma cells (MDA-MB-231 and H1703 cell lines) established these nanovectors are potential agents for cancer therapy. The pro-apoptotic effect is somewhat greater for CO-TRAIL@NPs-NH than NH-TRAIL@NPs-CO, as evidenced by viability studies and apoptosis analysis. A computational study indicated that regardless of whether TRAIL is attached to NPs through an acid or an amino group, DR4 recognition is not affected in either case.

Dual-temperature and pH responsive (ethylene glycol)-based nanogels via structural design

2014 ◽  
Vol 5 (8) ◽  
pp. 3061-3070 ◽  
Author(s):  
Yohei Kotsuchibashi ◽  
Ravin Narain
Keyword(s):  
Carboxylic Acid ◽  
Ethylene Glycol ◽  
Salt Concentration ◽  
Structural Design ◽  
Solution Temperature ◽  
Ph Responsive ◽  
Solution Ph ◽  
Critical Solution Temperature ◽  
Carboxylic Acid Groups ◽  
The Core

Dual-temperature and pH responsive (ethylene glycol)-based nanogels were synthesized. Both the core and the shell of the nanogels showed a lower critical solution temperature (LCST) and the LCST of the shell was strongly affected by the solution pH and salt concentration due to the presence of carboxylic acid groups at the nanogel surface.

Metal ion retention properties of water-insoluble polymers containing carboxylic acid groups

2005 ◽  
Vol 99 (3) ◽  
pp. 697-705 ◽  
Author(s):  
Bernabé L. Rivas ◽  
Benita Quilodrán ◽  
Eduardo Quiroz
Keyword(s):  
Carboxylic Acid ◽  
Metal Ion ◽  
Carboxylic Acid Groups ◽  
Insoluble Polymers

Oxidation of poly[bis(4-methylphenoxy)phosphazene] surfaces and chemistry of the surface carboxylic acid groups

1992 ◽  
Vol 4 (4) ◽  
pp. 769-775 ◽  
Author(s):  
Harry R. Allcock ◽  
Richard J. Fitzpatrick ◽  
Lawrence Salvati
Keyword(s):  
Carboxylic Acid ◽  
Carboxylic Acid Groups

Direct synthesis of ordered and highly functionalized organosilicas containing carboxylic acid groups

2007 ◽  
Vol 17 (7) ◽  
pp. 616 ◽  
Author(s):  
Rola Mouawia ◽  
Ahmad Mehdi ◽  
Catherine Rey? ◽  
Robert Corriu
Keyword(s):  
Carboxylic Acid ◽  
Direct Synthesis ◽  
Carboxylic Acid Groups
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