Results 71 to 80 of about 114,437 (327)

An Investigation into the Suitability of Sulfate-Reducing Bacteria as Models for Martian Forward Contamination [PDF]

, 2018
The NASA Planetary Protection policy requires interplanetary space missions do not compromise the target body for a current or future scientific investigation and do not pose an unacceptable risk to Earth, including biologic materials.
Silver, Maxwell M. W.
core   +2 more sources

The Fermenting Bacterium Malonomonas rubra is Phylogenetically Related to Sulfur-Reducing Bacteria and Contains a c-Type Cytochrome similar to those of Sulfur and Sulfate Reducers [PDF]

Systematic and Applied Microbiology, 1998
Malonomonas rubra is a microaerotolerant fermenting bacterium which can maintain its energy metabolism for growth by decarboxylation of malonate to acetate. 16S rRNA sequence analysis revealed that M. rubra is closely related to the cluster of mesophilic sulfur-reducing bacteria within the delta subclass of the Proteobacteria, with the fermenting ...
Kolb, Sylvie, Seeliger, Sabine, Springer, Nina, Ludwig, Wolfgang, Schink, Bernhard   +4 more
openaire   +3 more sources

Single‐ and Dual‐Atom Configurations in Atomically Dispersed Catalysts for Lithium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
Single‐atom and dual‐atom‐based atomically dispersed catalysts (ADCs) effectively address the shuttle effect and sluggish redox kinetics in Li–S batteries. With nearly 100% atomic utilization and tunable coordination environments, ADCs enhance LiPSs adsorption, lower conversion barriers, and accelerate sulfur redox reactions.
Haoyang Xu, Zhenfeng Li, Yue Fei, Ali Mohammadi, Ge Li   +4 more
wiley   +1 more source

Rhizosphere bacterial diversity and environmental function prediction of wild salt-tolerant plants in coastal silt soil

Ecological Indicators, 2022
Coastal silt soil (CSS), hydraulically transported and filled by dredger and mud pump from the bottom of beach in coastal zone in the process of reclamation project, has a high salinity which poses difficulties for coastal development.
Xiaochi An, Zaifeng Wang, Xiaoming Teng, Ruirong Zhou, Xingxing Wang, Min Xu, Bin Lian   +6 more
doaj   +1 more source

Inhibition of microbial sulfate reduction in a flow-through column system by (per)chlorate treatment. [PDF]

, 2014
Microbial sulfate reduction is a primary cause of oil reservoir souring. Here we show that amendment with chlorate or perchlorate [collectively (per)chlorate] potentially resolves this issue. Triplicate packed columns inoculated with marine sediment were
Anderson, Gary, Boussina, Aaron, Carlson, Hans K, Coates, John D, Conrad, Mark E, Engelbrektson, Anna, Hubbard, Christopher G, Jin, Yong T, Piceno, Yvette M, Tom, Lauren M, Wong, Hayden   +10 more
core   +5 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

Diversity of corrosive aggressive bacteria in soils of different biotopes

Біологічні студії, 2011
Dissemination of corrosive-aggressive bacteria in soils from different biotopes under man-caused load was investigated. In the man-caused biotopes there were 2–3 degree more of the sulfate-reducing bacteria, 1–2 degreeless nitrogen-fixing bacteria, and 2–
D. R. Abdulina, L. G. Asaulenko, L. M. Purish   +2 more
doaj   +1 more source

Expanded Genomic Sampling Refines Current Understanding of the Distribution and Evolution of Sulfur Metabolisms in the Desulfobulbales

Frontiers in Microbiology, 2021
The reconstruction of modern and paleo-sulfur cycling relies on understanding the long-term relative contribution of its main actors; these include microbial sulfate reduction (MSR) and microbial sulfur disproportionation (MSD).
Lewis M. Ward, Emma Bertran, David T. Johnston   +2 more
doaj   +1 more source

The identification and biogeochemical interpretation of fossil magnetotactic bacteria [PDF]

, 2008
Magnetotactic bacteria, which most commonly live within the oxic-anoxic transition zone (OATZ) of aquatic environments, produce intracellular crystals of magnetic minerals, specifically magnetite or greigite.
Kirschvink, Joseph L., Kopp, Robert E.
core   +1 more source

Thermo‐Fluorescent Bactericidal Quantum Dots Based Smart Multifunctional Textiles via Molecular Surface Engineering and 3D‐Printed Interlocked Architectures

Advanced Healthcare Materials, EarlyView.
A versatile approach is presented for fabricating smart multifunctional textiles by integrating thermo‐fluorescent carbon dot/polymer nanocomposite coatings with 3D‐printed interlocked architectures. The fabrics exhibit temperature‐responsive fluorescence, durable hydrophobicity, strong antibacterial and antioxidant activity, and enhanced UV protection.
Poushali Das, Sayan Ganguly, Parham Khoshbakht Marvi, Misha Muthalali, Fatemeh Parniani, Shiza Hassan, Xiaowu (Shirley) Tang, Seshasai Srinivasan, Amin Reza Rajabzadeh   +8 more
wiley   +1 more source