Slow Dynamics of Biological Water

2021 ◽  
pp. 29-52
Author(s):  
Gaia Camisasca ◽  
Antonio Iorio ◽  
Lorenzo Tenuzzo ◽  
Paola Gallo
2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Oliver Hart ◽  
Yuan Wan ◽  
Claudio Castelnovo

AbstractRealistic model Hamiltonians for quantum spin liquids frequently exhibit a large separation of energy scales between their elementary excitations. At intermediate, experimentally relevant temperatures, some excitations are sparse and hop coherently, whereas others are thermally incoherent and dense. Here, we study the interplay of two such species of quasiparticle, dubbed spinons and visons, which are subject to nontrivial mutual statistics – one of the hallmarks of quantum spin liquid behaviour. Our results for $${{\mathbb{Z}}}_{2}$$ Z 2 quantum spin liquids show an intriguing feedback mechanism, akin to the Nagaoka effect, whereby spinons become localised on temperature-dependent patches of expelled visons. This phenomenon has important consequences for the thermodynamic and transport properties of the system, as well as for its response to quenches in temperature. We argue that these effects can be measured in experiments and may provide viable avenues for obtaining signatures of quantum spin liquid behaviour.


2021 ◽  
Vol 18 (3) ◽  
pp. 501-533
Author(s):  
Kui Wan ◽  
Xuelian Gou ◽  
Zhiguang Guo

AbstractWith the explosive growth of the world’s population and the rapid increase in industrial water consumption, the world’s water supply has fallen into crisis. The shortage of fresh water resources has become a global problem, especially in arid regions. In nature, many organisms can collect water from foggy water under harsh conditions, which provides us with inspiration for the development of new functional fog harvesting materials. A large number of bionic special wettable synthetic surfaces are synthesized for water mist collection. In this review, we introduce some water collection phenomena in nature, outline the basic theories of biological water harvesting, and summarize six mechanisms of biological water collection: increased surface wettability, increased water transmission area, long-distance water delivery, water accumulation and storage, condensation promotion, and gravity-driven. Then, the water collection mechanisms of three typical organisms and their synthesis are discussed. And their function, water collection efficiency, new developments in their biomimetic materials are narrated, which are cactus, spider and desert beetles. The study of multiple bionics was inspired by the discovery of Nepenthes’ moist and smooth peristome. The excellent characteristics of a variety of biological water collection structures, combined with each other, are far superior to other single synthetic surfaces. Furthermore, the main problems in the preparation and application of biomimetic fog harvesting materials and the future development trend of materials fog harvesting are prospected.


2021 ◽  
Vol 31 (5) ◽  
pp. 053125
Author(s):  
Luciano A. Magrini ◽  
Margarete Oliveira Domingues ◽  
Elbert E. N. Macau ◽  
István Z. Kiss
Keyword(s):  

2021 ◽  
Vol 9 (5) ◽  
pp. 1090
Author(s):  
Habibu Aliyu ◽  
Ronnie Kastner ◽  
Pieter de Maayer ◽  
Anke Neumann

Parageobacillus thermoglucosidasius is known to catalyse the biological water gas shift (WGS) reaction, a pathway that serves as a source of alternative energy and carbon to a wide variety of bacteria. Despite increasing interest in this bacterium due to its ability to produce biological hydrogen through carbon monoxide (CO) oxidation, there are no data on the effect of toxic CO gas on its physiology. Due to its general requirement of O2, the organism is often grown aerobically to generate biomass. Here, we show that carbon monoxide (CO) induces metabolic changes linked to distortion of redox balance, evidenced by increased accumulation of organic acids such as acetate and lactate. This suggests that P. thermoglucosidasius survives by expressing several alternative pathways, including conversion of pyruvate to lactate, which balances reducing equivalents (oxidation of NADH to NAD+), and acetyl-CoA to acetate, which directly generates energy, while CO is binding terminal oxidases. The data also revealed clearly that P. thermoglucosidasius gained energy and grew during the WGS reaction. Combined, the data provide critical information essential for further development of the biotechnological potential of P. thermoglucosidasius.


Author(s):  
Marie-Claire Dusabe ◽  
Torsten Wronski ◽  
Guilherme Gomes-Silva ◽  
Martin Plath ◽  
Christian Albrecht ◽  
...  

2020 ◽  
Vol 132 (18) ◽  
pp. 7339-7339
Author(s):  
Won‐Woo Park ◽  
Kyung Min Lee ◽  
Byeong Sung Lee ◽  
Young Jae Kim ◽  
Se Hun Joo ◽  
...  

Author(s):  
Laura M. J. Fernandez ◽  
Sandro Lecci ◽  
Romain Cardis ◽  
Gil Vantomme ◽  
Elidie Béard ◽  
...  

1994 ◽  
Vol 49 (4) ◽  
pp. 3150-3158 ◽  
Author(s):  
T. Odagaki ◽  
J. Matsui ◽  
Y. Hiwatari

Author(s):  
Anjali Jayakumar ◽  
Christian Wurzer ◽  
Sylvia Soldatou ◽  
Christine Edwards ◽  
Linda A. Lawton ◽  
...  

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