Results 191 to 200 of about 2,662,632 (251)

Rare‐Earth–Functionalized Carbon Dot Hydrogels as Mechanically Robust Antibacterial Wound Dressings

Advanced Healthcare Materials, EarlyView.
The schematic depicts a dynamically cross‐linked PVA hydrogel network in which reversible borate ester bonds and hydrogen‐bonding interactions integrate lanthanum‐doped carbon dots (La‐CDs) and dipotassium glycyrrhizinate (DPG) to form a mechanically robust, multifunctional matrix.
Shih‐Han Tsai, Ramadhass Keerthika Devi, Muthusankar Ganesan, Guo‐Ping Chang Chien, Chun Che Lin   +4 more
wiley   +1 more source

Targeting CD300a Signaling With a Phosphatidylserine‐Presenting Hydrogel Rescues Macrophage Dysfunction and Accelerates Diabetic Wound Healing

Advanced Healthcare Materials, EarlyView.
Schematic illustration of the proposed mechanism: PEG/RGD‐PSLs mimic apoptotic cells to engage PS receptors (notably CD300a), transducing an inhibitory signal that suppresses the MyD88/NF‐κB pathway, leading to global anti‐inflammatory and pro‐reparative effects.
Lele Wu, Xuetong Hao, Yang Zou, Xinglin Chen, Junyan Kong, Chunning Gu, Wenjie Ma, Zhongjun Yang, Huifen Liu, Mengmeng Liu, Xin Tong   +10 more
wiley   +1 more source

Optical Detection of Cellular Signals at Material Interfaces

Advanced Healthcare Materials, EarlyView.
Emerging functional materials are transforming optical detection of cellular signals. This review highlights optical techniques that exploit the unique optical properties of diverse materials to detect and quantify cellular electrical, chemical, and mechanical signals, and discusses key opportunities and challenges.
Xuchen Ren, Jitong Ren, Zixin Zhang, Koney Eungkon Kim, Francis L. Hong, Yuecheng Peter Zhou   +5 more
wiley   +1 more source

How does slurry application technique affect gaseous nitrogen losses?

Potthoff, Thade, Kühne, Johannes, Stenfert Kroese, Jaqueline, Buchen-Tschiskale, Caroline, Greef, Jörg Michael, Mielenz, Henrike, Well, Reinhard   +6 more
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Lessons from reviewing APSIM’s soil nitrogen modelling capability

Farrell, Mark, Wang, Enli, Sharp, Joanna M., Khaembah, Edith N., Smith, Chris J., Janke, Chelsea K., Mielenz, Henrike, Teixeira, Edmar I., Thorburn, Peter J., Verburg, Kirsten, Archontoulis, Sotirios V., Pasley, Heather R., Pasut, Chiara, Cichota, Rogerio, Brown, Hamish E., Gaydon, Donald S., Huth, Neil I., Holzworth, Dean P., Vogeler, Iris, He, Di, Gupta, Vadakattu V. S. R., Basche, Andrea D., Snow, Val O., Biggs, Jody S.   +23 more
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The nitrogen and sulphur cycles

Biochemical Systematics and Ecology, 1988
This book contains 17 selections. Some of the titles are: Genetic regulation of nitrogen fixation; On the analysis of symbiotic genes of Rhizobium; Regulation of nitrogen assimilation by bacteria; Alternative and conventional nitrogenases; and The role of oxygen and hydrogen in nitrogen fixation.
J. R. Etherington, J. A. Cole, S. J. Ferguson   +2 more
openaire   +1 more source

The evolution of nitrogen cycling

Origins of life and evolution of the biosphere, 1988
Based upon arguments concerning properties of the environment and the energetics of nitrogen transformation reactions, new hypotheses regarding their evolution are presented. These hypotheses are supported by new calculations and observations germane to understanding the evolution of the nitrogen cycle. From calculations of shock production by meteor
R L, Mancinelli, C P, McKay
openaire   +2 more sources

NITROGEN CYCLING IN THE GUT

Annual Review of Nutrition, 1998
▪ Abstract  This review examines the involvement of the gastrointestinal tract in the utilization of nitrogen, the identities of the nitrogenous substances entering and leaving the gut, and the significance of this recycling in the overall nitrogen economy of the body. It is concerned with nonruminant mammals, including man.
M F, Fuller, P J, Reeds
openaire   +2 more sources

Nitrogen cycle enzymology

Current Opinion in Chemical Biology, 1998
The minimal nitrogen cycle involves five reduction reactions and three oxidation reactions, each of which poses interesting problems in bioinorganic chemistry, energy transduction and protein structure/function relationships. Many of the major recent developments in this field have depended on the acquisition of protein crystal structures, including ...
openaire   +2 more sources

The Nitrogen Cycles

1982
The purpose of this paper is to review the biogeochemical nitrogen cycle. The importance of nitrogen derives mainly from its fundamental nutritional role, but is also due to the fact that nitrogenous substances are important environmental pollutants. The possible effect of the interaction between nitrogen oxides and the stratospheric ozone layer is a ...
R. Söderlund, T. Rosswall
openaire   +1 more source