Results 31 to 40 of about 279,840 (246)

Ferric sulfate montmorillonites as Mars soil analogs [PDF]

, 1993
Spectroscopic analyses have shown that Fe(3+)-doped smectites prepared in the laboratory exhibit important similarities to the soils on Mars. Ferrihydrite in these smectites has features in the visible to near-infrared region that resemble the energies ...
Pieters, C. M., Bishop, J. L., Burns, R. G.   +2 more
core  

Iron‐Mediated Release of Aged Dissolved Organic Carbon From Waterlogged Peatland Under Warming

Advanced Science, EarlyView.
This study conducts a five‐year in situ warming experiment in high‐altitude peatlands to examine dissolved organic carbon (DOC) release. The study shows that warming promotes the release of plant‐derived modern DOC in drained peatlands, but amplifies aquatic export of century‐old DOC from waterlogged peatlands via Fe‐mediated DOC mobilization—a ...
Guohua Dai, Zhiying Yang, Zongguang Liu, Wanjia Hu, Lixiao Ma, Enze Kang, Wanqing Luo, Yunpeng Zhao, Chengzhu Liu, Juan Jia, Ting Liu, Chen He, Quan Shi, Jianliang Liu, Yongheng Gao, Huai Chen, Hailong Zhang, Meixun Zhao, Xiaojuan Feng   +18 more
wiley   +1 more source

Prophage Activation Triggers Extracellular Synthesis of DNA in Bacterial Biofilms via Rolling Circle Replication

Angewandte Chemie, EarlyView.
Shewanella oneidensis and Bacillus subtilis, both harboring prophages, reveal a novel biosynthetic route to scalable and programmable DNA superstructures in flower‐ and wire‐like shapes, respectively. Activation of prophages is achieved via 3‐hour starvation and monitored using reporter strains.
Gabriel Antonio S. Minero, Line Mørkholt Lund, Lasse Hyldgaard Klausen, Obinna Markraphael Ajunwa, Mingdong Dong, Rikke Louise Meyer, Victoria Birkedal, Kai Thormann   +7 more
wiley   +2 more sources

Dual‐Functional Silent‐Region SERS Nanoplatform for Real‐Time Bacterial Tracking and Wound Healing Therapy

Advanced Science, EarlyView.
ABSTRACT Bacterial wound infections, particularly those caused by Escherichia coli and Pseudomonas aeruginosa, are difficult to treat due to biofilm formation, multidrug resistance, and chronic inflammation. Here, we report a multifunctional nanoplatform based on a surface‐enhanced Raman scattering (SERS) probe that enables simultaneous photodynamic ...
Hanbin Deng, Rui Wang, Dianqi Zhang, Wei Zhang, Jaebum Choo, Fabiao Yu, Shaowen Cheng   +6 more
wiley   +1 more source

Combined coagulation flocculation pre treatment unit for municipal wastewater

Journal of Advanced Research, 2012
The potentials of using the hydraulic technique in combined unit for municipal wastewater treatment were studied. A combined unit in which processes of coagulation, flocculation and sedimentation, has been designed utilizing hydraulic mixing instead of ...
Ibrahim M. Ismail, Ahmed S. Fawzy, Nabil M. Abdel-Monem, Mahmoud H. Mahmoud, Mohamed A. El-Halwany   +4 more
doaj   +1 more source

A periplasmic and extracellular c-type cytochrome of Geobacter sulfurreducens acts as a ferric iron reductase and as an electron carrier to other acceptors or to partner bacteria [PDF]

, 1998
An extracellular electron carrier excreted into the growth medium by cells of Geobacter sulfurreducens was identified as a c-type cytochrome. The cytochrome was found to be distributed in about equal amounts in the membrane fraction, the periplasmic ...
Schink, B., Schink, Bernhard, Cord-Ruwisch, R., Seeliger, Sabine, Cord-Ruwisch, Ralf, Seeliger, S.   +5 more
core  

Revolutionising Agricultural Sustainability: New ‘Furrow Tillage’ can Mitigate Short‐Term Soil‐to‐Atmosphere CO2 Flux and Promote Soil‐Plant‐Microbe Health

Advanced Science, EarlyView.
Furrow tillage resolves the conventional‐vs.‐no‐tillage trade‐off by simultaneously cutting CO2 efflux to 2.0–3.0 g C m−2 d−1 and unlocking high nutrient availability for the rice rhizosphere. This scalable agronomic solution strengthens soil health, enhances plant physiology, reshapes microbial metabolism, and shifts paddy systems toward a net ...
Arnab Majumdar, Munish Kumar Upadhyay, Argha Ghosh, Rakesh Biswas, Ioly Kotta Loizou, Martin Buck, Mark Tibbett, Biswajit Giri, Debojyoti Moulick, Manoj Kumar Jaiswal, Tarit Roychowdhury   +10 more
wiley   +1 more source

Performance Evaluation of Tile Wastewater Treatment with Different Coagulants

Journal of Environmental Health and Sustainable Development, 2016
Introduction: The objective of this study was to investigate wastewater quality and the efficiency of removal of wastewater contaminants produced by a tile factory by using ferric chloride, ferrous sulfate, ferric sulfate, aluminum sulfate (alum) and ...
Tahereh Zarei Mahmoud Abadi, Ali Asghar Ebrahimi, Mohammad Taghi Ghaneian, Mehdi Mokhtari, Mohammad Hossein Salmani, Parvaneh Talebi   +5 more
doaj  

Mathematical modeling of ferrous sulfate oxidation in presence of air

MATEC Web of Conferences, 2018
In the present paper we studied the oxidation of ferrous sulfate salt with oxygen. ferric ammonium sulfate and ferrous sulfate were used to prepare standard solutions of Fe(III) and Fe(II) solutions. Oxidation experiments were carried out by mixing FeSO4·
Beltrán-Prieto Juan Carlos, Kolomazník Karel   +1 more
doaj   +1 more source

Waterless fracturing fluid with low carbon hydrocarbon as base fluid for unconventional reservoirs

Petroleum Exploration and Development, 2013
As the conventional fracturing fluids are not good for stimulation of unconventional reservoirs and the conventional oil-based fracturing fluids crosslink slowly, a ferric-complex cross-linking agent that cross-links fast with dialkyl phosphate ester was
Xiangqian HOU, Yongjun LU, Bo FANG, Xiaohui QIU, Weixiang CUI   +4 more
doaj   +1 more source