Results 111 to 120 of about 169,199 (298)

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

Advanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

The Stat3-Fam3a axis promotes muscle stem cell myogenic lineage progression by inducing mitochondrial respiration. [PDF]

, 2019
Metabolic reprogramming is an active regulator of stem cell fate choices, and successful stem cell differentiation in different compartments requires the induction of oxidative phosphorylation.
Cunningham, Thomas J, Dall'Agnese, Alessandra, Duester, Gregg, Etxaniz, Usue, Latella, Lucia, Nicoletti, Chiara, Puri, Pier Lorenzo, Sacco, Alessandra, Sala, David, Stec, Michael J   +9 more
core   +3 more sources

On-line identification of P-glycoprotein substrates by monitoring of extracellular acidification and respiration rates in living cells

Biochimica et Biophysica Acta (BBA) - Biomembranes, 2011
The influence of P-glycoprotein (ABCB1) in drug resistance as well as drug absorption and disposition is an important factor to be considered during the development of new drugs. Thus, the early identification and exclusion of compounds showing a high affinity towards P-glycoprotein can help to select drug candidates.
Seeland, S., Treiber, A., Hafner, M., Huwyler, J.   +3 more
openaire   +2 more sources

Nanodiamond Quantum Sensors for Probing Free Radical Biology

Advanced Functional Materials, EarlyView.
Free radicals play key roles in cellular signaling and disease but remain difficult to measure in living systems. Nanodiamonds (NDs) with nitrogen‐vacancy (NV) centers enable quantum sensing of local magnetic noise via T₁ relaxometry, providing nondestructive radical detection in living cells.
Qi Lu, Yingke Wu, Tanja Weil
wiley   +1 more source

Endogenous oscillations of electric potential difference in the cambial region of the pine stem. I. General characteristics of the oscillations

Acta Societatis Botanicorum Poloniae, 2014
Extracellular measurements of electric potential difference (PD) in isolated tissue blocks from Scots pine were performed. Endogenous transient PD changes (oscillations) generated exclusively in the cambial region were found.
Wojciech Kurek
doaj   +1 more source

The Automated Root Exudate System (ARES): a method to apply solutes at regular intervals to soils in the field. [PDF]

, 2017
Root exudation is a key component of nutrient and carbon dynamics in terrestrial ecosystems. Exudation rates vary widely by plant species and environmental conditions, but our understanding of how root exudates affect soil functioning is incomplete, in ...
Baxendale, Catherine, Birkett, Ali J, Bréchet, Laëtitia M, Estradera-Gumbau, Eduard, George, Charles, Lopez-Sangil, Luis, Medina-Barcenas, Eduardo, Sayer, Emma J.   +7 more
core   +3 more sources

Characterization of an Injectable Poly(vinyl alcohol)‐gelatin Hydrogel for Growth Factor Delivery in an Orthopedic Application

Advanced Healthcare Materials, EarlyView.
This work introduces photo‐crosslinkable tyraminated poly(vinyl alcohol)‐gelatin (PVA‐GT) hydrogels as tunable injectable platforms for tissue engineering and growth factor delivery applications. This schematic illustrates the two developed hydrogel formulations and the experimental workflow used to evaluate their physico‐chemical properties in vitro ...
Alessia Longoni, Gretel S. Major, Sam Arnold, Samuel Tomkins, Eugenia Spessot, Scott Loeffler, Kieran Lau, Richard Tan, Jessica Harte, Roslyn Kemp, Tess Reynolds, Jelena Rnjak‐Kovacina, Gary J. Hooper, Tim B. F. Woodfield, David C. Kieser, Khoon S. Lim   +15 more
wiley   +1 more source

Genetically dissecting the electron transport chain of a soil bacterium reveals a generalizable mechanism for biological phenazine-1-carboxylic acid oxidation.

PLoS Genetics
The capacity for bacterial extracellular electron transfer via secreted metabolites is widespread in natural, clinical, and industrial environments. Recently, we discovered the biological oxidation of phenazine-1-carboxylic acid (PCA), the first example ...
Lev M Z Tsypin, Scott H Saunders, Allen W Chen, Dianne K Newman   +3 more
doaj   +1 more source

Changes in soil oxidase activity induced by microbial life history strategies mediate the soil heterotrophic respiration response to drought and nitrogen enrichment

Frontiers in Microbiology
Drought and nitrogen deposition are two major climate challenges, which can change the soil microbial community composition and ecological strategy and affect soil heterotrophic respiration (Rh).
Weirong Zhuang, Weirong Zhuang, Yong Li, Yong Li, Xiaoming Kang, Xiaoming Kang, Liang Yan, Liang Yan, Xiaodong Zhang, Xiaodong Zhang, Zhongqing Yan, Zhongqing Yan, Kerou Zhang, Kerou Zhang, Ao Yang, Ao Yang, Yuechuan Niu, Xiaoshun Yu, Xiaoshun Yu, Huan Wang, Huan Wang, Miaomiao An, Miaomiao An, Rongxiao Che, Rongxiao Che   +24 more
doaj   +1 more source

Secondary mineral formation associated with respiration of nontronite, NAu-1 by iron reducing bacteria

Geochemical Transactions, 2005
Experimental batch and miscible-flow cultures were studied in order to determine the mechanistic pathways of microbial Fe(III) respiration in ferruginous smectite clay, NAu-1.
Furukawa Yoko, Watkins Janet, O'Reilly S Erin   +2 more
doaj   +1 more source