Species-dependent eco-corona dictates the aggregation of black phosphorus nanosheets: the role of protein and calcium

Author(s):  
Linfeng Wei ◽  
Qing Zhang ◽  
Xingwang Hou ◽  
Guangbo Qu ◽  
Jiyan Liu ◽  
...  

There are numerous application prospects for black phosphorus (BP) in biomedical and agricultural fields. Here, the dispersion stability of BP nanosheets (BPNSs) in the root zone, which is essential for...

EDIS ◽  
2013 ◽  
Vol 2013 (11) ◽  
Author(s):  
George Hochmuth ◽  
Laurie Trenholm ◽  
Don Rainey ◽  
Esen Momol ◽  
Claire Lewis ◽  
...  

Proper irrigation management is critical to conserve and protect water resources and to properly manage nutrients in the home landscape. How lawns and landscapes are irrigated directly impacts the natural environment, so landscape maintenance professionals and homeowners must adopt environmentally-friendly approaches to irrigation management. After selecting the right plant for the right place, water is the next critical factor to establish and maintain a healthy lawn and landscape. Fertilization is another important component of lawn and landscape maintenance, and irrigation must be applied correctly, especially following fertilization, to minimize potential nutrient losses. This publication supplements other UF/IFAS Extension publications that also include information on the role of soil and the root zone in irrigation management. This publication is designed to help UF/IFAS Extension county agents prepare materials to directly address nutrient losses from lawns and landscapes caused by inadequate irrigation management practices. This 6-page fact sheet was written by George Hochmuth, Laurie Trenholm, Don Rainey, Esen Momol, Claire Lewis, and Brian Niemann, and published by the UF Department of Soil and Water Science, October 2013. http://edis.ifas.ufl.edu/ss586


Nanoscale ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 3790-3799
Author(s):  
Xinyao Ma ◽  
Xiaohong Zhu ◽  
Changxiong Huang ◽  
Zhen Li ◽  
Jun Fan

The puckered surface structure of black phosphorus endows it with distinctive biocompatibility.


2018 ◽  
Author(s):  
Siyu Zhang ◽  
Xuejiao Zhang ◽  
Lei Lei ◽  
Xue‐Feng Yu ◽  
Jingwen Chen ◽  
...  

2015 ◽  
Vol 50 (3) ◽  
pp. 193-198
Author(s):  
M Aslam ◽  
HM Nasrullah ◽  
M Akhtar ◽  
B Ali ◽  
M Akram ◽  
...  

Sesame is a well known oil seed crop in arid and semiarid region of Pakistan and its productivity is affected due to sensitiveness to water logging in the root zones. The experiment was conducted at research area of Agronomic Research Station, Bahawalpur during the year 2010 and 2011. The crop was sown by three different planting techniques i.e. flat sowing with 45cm apart rows, ridge sowing with 45cm apart, bed sowing with 60/30 cm i.e. 60 cm wide beds with 30 cm furrow between the beds. The data revealed that maximum number of plants wilted in flat planting as compared to other methods of planting were taken in this experiment. It was also recorded that bed planting at 90cm apart beds gave maximum grain yield of 843 kg ha-1 followed by ridge planting (seed spreading by broadcast and with augmented furrows) with a grain yield of 811 kg ha-1. The lowest yield was obtained from conventional method of sowing which gave 349 kg ha-1 grain yield. Water logging stress in the root zone can successfully be avoided by planting sesame on beds or ridges under climatic conditions of Bahawalpur.Bangladesh J. Sci. Ind. Res. 50(3), 193-198, 2015


2020 ◽  
Vol 20 (10) ◽  
pp. 6458-6462
Author(s):  
Honghong Liu ◽  
Peichao Lian ◽  
Yongwei Tang ◽  
Zhenting Zhao ◽  
Yi Mei

Black phosphorus quantum dots (BPQDs), a type of nanoscale black phosphorus (BP), have fantastic application prospects in various fields. However, the premise of the application of BPQDs depends on its effective preparation. At present, most of preparation processes of BPQDs involve in organic solvents which may be harmful to humans and the environment. Furthermore, some chemical impurities may inevitably be introduced into the final product. In addition, all the preparation processes need to be carried out under an inert gas due to the instability of BPQDs, which makes the reaction conditions more harsh and complicated. Therefore, an efficient and simple method for the preparation of BPQDs by gas exfoliation with the assistance of liquid N2 (l-N2) was developed for the first time in this study. This method is environmentally friendly and impurity-free because l-N2 is a nontoxic liquid that can be gasified to form N2. The obtained BPQDs were characterized by XRD, Raman, SEM, TEM and UV-Vis techniques and they had a lateral size of 9±3 nm.


2014 ◽  
Vol 80 (6) ◽  
pp. 1995-2003 ◽  
Author(s):  
Zhihua Bao ◽  
Aya Watanabe ◽  
Kazuhiro Sasaki ◽  
Takashi Okubo ◽  
Takeshi Tokida ◽  
...  

ABSTRACTPlants have mutualistic symbiotic relationships with rhizobia and fungi by the common symbiosis pathway, of which Ca2+/calmodulin-dependent protein kinase (encoded byCCaMK) is a central component. AlthoughOryza sativaCCaMK(OsCCaMK) is required for fungal accommodation in rice roots, little is known about the role ofOsCCaMKin rice symbiosis with bacteria. Here, we report the effect of aTos17-inducedOsCCaMKmutant (NE1115) on CH4flux in low-nitrogen (LN) and standard-nitrogen (SN) paddy fields compared with wild-type (WT) Nipponbare. The growth of NE1115 was significantly decreased compared with that of the WT, especially in the LN field. The CH4flux of NE1115 in the LN field was significantly greater (156 to 407% in 2011 and 170 to 816% in 2012) than that of the WT, although no difference was observed in the SN field. The copy number ofpmoA(encodes methane monooxygenase in methanotrophs) was significantly higher in the roots and rhizosphere soil of the WT than in those of NE1115. However, themcrA(encodes methyl coenzyme M reductase in methanogens) copy number did not differ between the WT and NE1115. These results were supported by a13C-labeled CH4-feeding experiment. In addition, the natural abundance of15N in WT shoots (3.05‰) was significantly lower than in NE1115 shoots (3.45‰), suggesting greater N2fixation in the WT because of dilution with atmospheric N2(0.00‰). Thus, CH4oxidation and N2fixation were simultaneously activated in the root zone of WT rice in the LN field and both processes are likely controlled byOsCCaMK.


1995 ◽  
Author(s):  
◽  
Youxiu Hua

The objective of this study is to evaluate the effects of variable cracking on the transportation of agricultural chemicals at the Missouri MSEA site using the Root Zone Water Quality Model (The version of the RZWQM used in this thesis is version 3.0). To reach this goal, the following tasks have to be conducted: (1) revising the RZWQM to accommodate variable cracks; (2) calibrating the RZWQM to the Missouri MSEA site' , (3) quantifying cracking at the Missouri MSEA site; (4) using the cracking data in the RZWQM; (5) predicting the effects of cracking on water content, nitrate-nitrogen, atrazine and alachlor transport by using the revised RZWQM; and, (6) analyzing the simulation results.||Evaluation of effects of variable cracking on the transportation of agricultural chemicals at the Missouri Management System Evaluation Area site using the Root Zone Water Quality Model.


2021 ◽  
Vol 12 ◽  
Author(s):  
Suqing Liu ◽  
Jinhua Xu ◽  
Jinfeng Wu

Psoriasis is a chronic, systemic immune-mediated inflammatory disease manifesting in the skin, joint or both. Co-signaling molecules are essential for determining the magnitude of the T cell response to the antigen. According to the function of co-signaling molecules, they can be divided into co-stimulatory molecules and co-inhibitory molecules. The role of co-signaling molecules in psoriasis is recognized, mainly including the co-stimulatory molecules CD28, CD40, OX40, CD27, DR3, LFA-1, and LFA-3 and the co-inhibitory molecules CTLA-4, PD-1, and TIM-3. They impact the pathological process of psoriasis by modulating the immune strength of T cells, regulating the production of cytokines or the differentiation of Tregs. In recent years, immunotherapies targeting co-signaling molecules have made significant progress and shown broad application prospects in psoriasis. This review aims to outline the possible role of co-signaling molecules in the pathogenesis of psoriasis and their potential application for the treatment of psoriasis.


2019 ◽  
Vol 9 (2) ◽  
pp. 423 ◽  
Author(s):  
Xinying Ding ◽  
Zhan Wei ◽  
Ying Chen ◽  
Pengcheng Lin ◽  
Qi Yan ◽  
...  

Nanoscale ◽  
2018 ◽  
Vol 10 (19) ◽  
pp. 8979-8988 ◽  
Author(s):  
Petr Lazar ◽  
Eva Otyepková ◽  
Martin Pykal ◽  
Klára Čépe ◽  
Michal Otyepka

The structure of phosphorene resembles the honeycomb arrangement of graphene, but its layers are buckled and highly anisotropic.


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