A Proton Buffering Role for Silica in Diatoms

Science ◽  
2002 ◽  
Vol 297 (5588) ◽  
pp. 1848-1850 ◽  
Author(s):  
A. J. Milligan
Keyword(s):  
Proton Buffering

Lysosomal Proton Buffering of Poly(ethylenimine) Measured In Situ by Fluorescent pH-Sensor Microcapsules

ACS Nano ◽  
2020 ◽  
Vol 14 (7) ◽  
pp. 8012-8023 ◽  
Author(s):  
Sathi Roy ◽  
Dingcheng Zhu ◽  
Wolfgang J. Parak ◽  
Neus Feliu
Keyword(s):  
Ph Sensor ◽  
Proton Buffering

Effects of parathyroid hormone on net proton flux from neonatal mouse calvariae

1987 ◽  
Vol 252 (4) ◽  
pp. F585-F589 ◽  
Author(s):  
D. A. Bushinsky
Keyword(s):  
Parathyroid Hormone ◽  
Chronic Exposure ◽  
Neonatal Mouse ◽  
Alkaline Media ◽  
Alkaline Ph ◽  
Calcium Efflux ◽  
Acute Metabolic Acidosis ◽  
Ph Range ◽  
And Control ◽  
Proton Buffering

Bone mineral buffers protons during acute metabolic acidosis; whether parathyroid hormone (PTH) augments proton buffering is controversial. To determine whether PTH augments proton buffering by bone, we cultured neonatal mouse calvariae with or without PTH (10(-8) M) for 3 h in medium that was physiologically acid (pH approximately 7.20), neutral (pH approximately 7.40), or alkaline (pH approximately 7.60). Over the entire pH range studied there was less influx of protons into calvariae treated with PTH than into control calvariae, indicating that PTH does not augment but instead inhibits proton buffering by bone. To determine whether chronic exposure to PTH is necessary to augment proton buffering, calvariae were incubated with PTH for 24 h before a 3-h culture. Calcium efflux from calvariae exposed to PTH (10(-8) M) for 24 h exceeded that of controls. When these same calvariae were recultured for 3 h in fresh medium, PTH-treated and control calvariae behaved similarly, with net efflux of protons into acid, neutral, and alkaline media. Regardless of whether PTH is added at the time of exposure to acid medium or 24 h before calvariae cultured with PTH do not buffer protons to a greater extent than controls.

400 Capsaicin Causes Mitochondrial Proton Buffering in Parietal Cells

2010 ◽  
Vol 138 (5) ◽  
pp. S-59
Author(s):  
Sascha Kopic ◽  
Michael K. Murek ◽  
Danielle Collins ◽  
Mohammad Reza Boroumand ◽  
John P. Geibel
Keyword(s):  
Parietal Cells ◽  
Proton Buffering

Proton buffering in mineral horizons of some acid forest soils

Geoderma ◽  
1991 ◽  
Vol 49 (1-2) ◽  
pp. 63-76 ◽  
Author(s):  
P. Süsser ◽  
U. Schwertmann
Keyword(s):  
Forest Soils ◽  
Acid Forest Soils ◽  
Proton Buffering

Proton buffering in organic horizons of acid forest soils

Geoderma ◽  
1991 ◽  
Vol 48 (1-2) ◽  
pp. 93-106 ◽  
Author(s):  
L. Nätscher ◽  
U. Schwertmann
Keyword(s):  
Forest Soils ◽  
Organic Horizons ◽  
Acid Forest Soils ◽  
Proton Buffering

Enhancement of Acid Tolerance in Zymomonas mobilis by a Proton-Buffering Peptide

2006 ◽  
Vol 134 (1) ◽  
pp. 15-26 ◽  
Author(s):  
David J. Baumler ◽  
Kai F. Hung ◽  
Jeffrey L. Bose ◽  
Boris M. Vykhodets ◽  
Chorng M. Cheng ◽  
...  
Keyword(s):  
Zymomonas Mobilis ◽  
Acid Tolerance ◽  
Proton Buffering

scholarly journals Relationship between intracellular proton buffering capacity and intracellular pH

1992 ◽  
Vol 41 (1) ◽  
pp. 43-49 ◽  
Author(s):  
David J.A. Goldsmith ◽  
Philip J. Hilton
Keyword(s):  
Intracellular Ph ◽  
Buffering Capacity ◽  
Proton Buffering
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