Incongruent dissolution of copper in an Al-Cu assembling. Influence of local pH changes

2013 ◽  
Vol 45 (10) ◽  
pp. 1590-1596 ◽  
Author(s):  
S. Joma ◽  
M. Sancy ◽  
E. M. M. Sutter ◽  
T. T. M. Tran ◽  
B. Tribollet
Keyword(s):  
Incongruent Dissolution ◽  
Ph Changes ◽  
Local Ph

Evaluation of the role of the DNA surface for enhancing the activity of scaffolded enzymes

2021 ◽  
Vol 57 (32) ◽  
pp. 3925-3928
Author(s):  
Peng Lin ◽  
Huyen Dinh ◽  
Yuki Morita ◽  
Zhengxiao Zhang ◽  
Eiji Nakata ◽  
...  
Keyword(s):  
Ph Changes ◽  
Enhanced Activity ◽  
Local Ph ◽  
Dna Scaffold

Local pH changes on the DNA scaffold surface do not contribute to the enhanced activity of scaffolded enzymes.

scholarly journals Early pH Changes in Musculoskeletal Tissues upon Injury—Aerobic Catabolic Pathway Activity Linked to Inter-Individual Differences in Local pH

2020 ◽  
Vol 21 (7) ◽  
pp. 2513 ◽  
Author(s):  
Julia C. Berkmann ◽  
Aaron X. Herrera Martin ◽  
Agnes Ellinghaus ◽  
Claudia Schlundt ◽  
Hanna Schell ◽  
...  
Keyword(s):  
Individual Differences ◽  
Animal Models ◽  
Time Course ◽  
Tricarboxylic Acid Cycle ◽  
Controlled Drug Release ◽  
Post Injury ◽  
Ph Changes ◽  
Ph Values ◽  
Local Ph

Local pH is stated to acidify after bone fracture. However, the time course and degree of acidification remain unknown. Whether the acidification pattern within a fracture hematoma is applicable to adjacent muscle hematoma or is exclusive to this regenerative tissue has not been studied to date. Thus, in this study, we aimed to unravel the extent and pattern of acidification in vivo during the early phase post musculoskeletal injury. Local pH changes after fracture and muscle trauma were measured simultaneously in two pre-clinical animal models (sheep/rats) immediately after and up to 48 h post injury. The rat fracture hematoma was further analyzed histologically and metabolomically. In vivo pH measurements in bone and muscle hematoma revealed a local acidification in both animal models, yielding mean pH values in rats of 6.69 and 6.89, with pronounced intra- and inter-individual differences. The metabolomic analysis of the hematomas indicated a link between reduction in tricarboxylic acid cycle activity and pH, thus, metabolic activity within the injured tissues could be causative for the different pH values. The significant acidification within the early musculoskeletal hematoma could enable the employment of the pH for novel, sought-after treatments that allow for spatially and temporally controlled drug release.

The effect of “local” pH changes on blood flow in the dog

1961 ◽  
Vol 61 (6) ◽  
pp. 777-782 ◽  
Author(s):  
T. Zsotér ◽  
L. Banderman ◽  
C.I. Chappel
Keyword(s):  
Blood Flow ◽  
Ph Changes ◽  
Local Ph

scholarly journals Microbial-induced calcium carbonate precipitation: an experimental toolbox for in situ and real time investigation of micro-scale pH evolution

RSC Advances ◽  
2020 ◽  
Vol 10 (35) ◽  
pp. 20485-20493
Author(s):  
Jennifer Zehner ◽  
Anja Røyne ◽  
Alexander Wentzel ◽  
Pawel Sikorski
Keyword(s):  
Calcium Carbonate ◽  
Real Time ◽  
Experimental Methods ◽  
Carbonate Precipitation ◽  
Calcium Carbonate Precipitation ◽  
Micro Scale ◽  
Ph Changes ◽  
Global And Local ◽  
Local Ph

We present two novel experimental methods to follow global and local pH changes on a microscale in bio-cementation processes.

scholarly journals Characterization of Local pH Changes in Brain Using Fast-Scan Cyclic Voltammetry with Carbon Microelectrodes

2010 ◽  
Vol 82 (23) ◽  
pp. 9892-9900 ◽  
Author(s):  
Pavel Takmakov ◽  
Matthew K. Zachek ◽  
Richard B. Keithley ◽  
Elizabeth S. Bucher ◽  
Gregory S. McCarty ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Fast Scan Cyclic Voltammetry ◽  
Ph Changes ◽  
Local Ph

An iridium oxide microelectrode for monitoring acute local pH changes of endothelial cells

The Analyst ◽  
2015 ◽  
Vol 140 (12) ◽  
pp. 4224-4231 ◽  
Author(s):  
Shu Rui Ng ◽  
Danny O'Hare
Keyword(s):  
Endothelial Cells ◽  
Iridium Oxide ◽  
Ph Changes ◽  
Local Ph ◽  
Stimulation Of

A microelectrode on a chip was modified to detect the local pH changes of the attached endothelial cells under the stimulation of thrombin.

scholarly journals Microbial-induced calcium carbonate precipitation: An experimental toolbox for in situ and real-time investigation of micro-scale pH evolution

2020 ◽  
Author(s):  
Jennifer Zehner ◽  
Anja Røyne ◽  
Alexander Wentzel ◽  
Pawel Sikorski
Keyword(s):  
Calcium Carbonate ◽  
Real Time ◽  
Small Sample ◽  
Carbonate Precipitation ◽  
Calcium Carbonate Precipitation ◽  
Micro Scale ◽  
Ph Changes ◽  
Macro Scale ◽  
Local Ph

AbstractConcrete is the second most consumed product by humans, after water. However, the production of cement, which is used as a binding material in concrete, causes more than 5% of anthropogenic CO2 emissions and has therefore a significant contribution to climate change and global warming. Due to increasing environmental awareness and international climate goals, there is a need for emission-reduced materials, that can replace conventional concrete in certain applications. One path to produce a solid, concrete-like construction material is microbial-induced calcium carbonate precipitation (MICP). As a calcium source in MICP, crushed limestone, which mainly consists out of CaCO3, can be dissolved with acids, for example lactic acid. The pH evolution during crystallization and dissolution processes provides important information about kinetics of the reactions. However, previous research on MICP has mainly been focused on macro-scale pH evolution and on characterization of the finished material. To get a better understanding of MICP it is important to be able to follow also local pH changes in a sample. In this work we present a new method to study processes of MICP at micro-scale in situ and in real time. We present two different methods to monitor the pH changes during the precipitation process of CaCO3. In the first method, the average pHs of small sample volumes are measured in real time, and pH changes are subsequently correlated with processes in the sample by comparing to optical microscope results. The second method is introduced to follow local pH changes at a grain scale in situ and in real time. Furthermore, local pH changes during the dissolution of CaCO3 crystals are monitored. We demonstrate that these two methods are powerful tools to investigate pH changes for both MICP precipitation and CaCO3 dissolution for knowledge-based improvement of MICP-based material properties.Graphical TOC Entry

scholarly journals Local pH changes triggered by photoelectrochemistry for silica condensation at the liquid-liquid interface

2016 ◽  
Vol 188 ◽  
pp. 71-77 ◽  
Author(s):  
Lukasz Poltorak ◽  
Marc Hébrant ◽  
Mohana Afsharian ◽  
Mathieu Etienne ◽  
Grégoire Herzog ◽  
...  
Keyword(s):  
Liquid Interface ◽  
Ph Changes ◽  
Local Ph
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