Results 81 to 90 of about 189,516 (294)

Prevalence of alkane monooxygenase genes in Arctic and Antarctic hydrocarbon-contaminated and pristine soils [PDF]

, 2017
The prevalence of four alkane monooxygenase genotypes (Pseudomonas putida GPo1, Pp alkB; Rhodococcus sp. strain Q15, Rh alkB1 and Rh alkB2; and Acinetobacter sp.
Greer, C.W., Labbé, D., Luz, A.P., Pellizari, V., Schultz, A., van Beilen, J.B., Whyte, L.G.   +6 more
core  

Chemotrophic Microbial Mats and Their Potential for Preservation in the Rock Record [PDF]

, 2009
Putative microbialites are commonly regarded to have formed in association with photosynthetic microorganisms, such as cyanobacteria. However, many modern microbial mat ecosystems are dominated by chemotrophic bacteria and archaea.
Bailey, Jake V., Corsetti, Frank A., Joye, Samantha B., Orphan, Victoria J.   +3 more
core   +1 more source

Modulus‐Switchable Miniature Robots for Biomedical Applications: A Review

Advanced Robotics Research, EarlyView.
Materials, robot designs, proof‐of‐concept functions, and biomedical applications of modulus‐switchable miniature robots. Miniature soft robots have shown great potential in biomedical applications due to their excellent controllability and suitable mechanical properties in biological environments.
Chunyun Wei, Yibin Wang, Jiangfan Yu
wiley   +1 more source

Microbiological influences on fracture surfaces of intact mudstone and the implications for geological disposal of radioactive waste [PDF]

, 2011
The significance of the potential impacts of microbial activity on the transport properties of host rocks for geological repositories is an area of active research. Most recent work has focused on granitic environments. This paper describes pilot studies
Aoki, K., Bateman, K., Coombs, P., Harrington, J., Harrison, H., Holyoake, S., Lacinska, A., Milodowski, A.E., Noy, D., Sasaki, Y., Turner, G., Wagner, D., West, J.M., Yoshikawa, H.   +13 more
core   +2 more sources

High Humidity Exacerbates Psoriasiform Skin Disease Relapse by Increasing Tissue‐Resident Memory T Cells via Altering Skin Microbiota

Advanced Science, EarlyView.
We demonstrated that high humidity worsened psoriasis relapse in murine psoriasiform skin inflammation by increasing skin‐resident memory CD8+ cells via upregulating IL‐15Rα on keratinocytes. The increases in IL‐15Rα and memory CD8+ cells were attributed to S. nepalensis and its metabolite ADMA in skin exposed to high humidity.
Chun‐Ling Liang, Yuchao Chen, Chuanjian Lu, Huazhen Liu, Fenglian Qin, Sisi Dai, Feifei Qiu, Haiming Chen, Weihui Lu, Jonathan S. Bromberg, Zhenhua Dai   +10 more
wiley   +1 more source

Tailoring Vascular‐Immune Homeostasis via Manganese‐DNA Complex‐Armed Immunogenic Extracellular Vesicles for Pancreatic Cancer Immunotherapy

Advanced Science, EarlyView.
This study demonstrates that Mn2⁺–tumor DNA complexes encapsulated in dendritic cell (DC)– derived immunogenic extracellular vesicles (EVDC@Mn‐DNA) act as a DC‐specific cGAS– STING activator. EVDC@Mn‐DNA treatment enhances intratumoral DC activation, improves tumor vascular function, promotes CD8⁺ T cell activity, and suppresses pancreatic tumor growth,
Xue Jiang, Lihuan Shang, Xiaochun Chen, Xiangzhan Kong, Xiaojuan Wang, Linjia Jiang, Huiying Zhao, Yafeng Zhu, Cheng Huang, Shiyi Deng, Rui Zhang, Minghui Wang, Haoming Lin, Ping‐Pui Wong   +13 more
wiley   +1 more source

Gut microbiota contribute to cold adaptation in mammals—primates and ungulates

iScience
Summary: Gut microbiota play an influential role in how animals adapt to extreme environments. Two phylogenetically distant mammals, Yunnan snub-nosed monkey and reindeer both adapted to frigid environments.
Xue-Qin Yao, Heng Bao, Nhat-Tan La, Guang-Shun Jiang, Peng-Hui Zhai, Chun-Bing Liu, Li Yu   +6 more
doaj   +1 more source

A molecular perspective on the limits of life: Enzymes under pressure [PDF]

, 2016
From a purely operational standpoint, the existence of microbes that can grow under extreme conditions, or "extremophiles", leads to the question of how the molecules making up these microbes can maintain both their structure and function. While microbes
Bartlett, D. H., Hemley, R. J., Huang, Q., Ichiye, T., Rodgers, J. M., Tran, K. N.   +5 more
core   +2 more sources

Bacterial Biodiversity, Cold Adaption and Biotechnological Importance of Bacteria Occurring in Antarctica

Proceedings of the Indian National Science Academy, 2017
Antarctica is the coldest, iciest, windiest and driest continent and defines the limits of temperature at which life forms can survive and divide. These cold loving microorganisms are known as psychrophiles and are present in all the unique habitats of Antarctica including permafrost and ice.
S. Shivaji, G. S. N. Reddy, M. K. Chattopadhyay   +2 more
openaire   +1 more source

Engineered Living Systems With Self‐Organizing Neural Networks: From Anatomy to Behavior and Gene Expression

Advanced Science, EarlyView.
Ectodermal tissue excised from Xenopus embryos self‐organizes into a three‐dimensional mucociliary organoid. Here, we generate a neural variant, termed neurobot, by implanting neural precursor cells. Neurobots develop mature neurons, adopt distinct morphologies, exhibit more complex motility, and respond differentially to neuroactive compounds. Imaging
Haleh Fotowat, Laurie O'Neill, Léo Pio‐Lopez, Megan M. Sperry, Patrick Erickson, Tiffany Lin, Michael Levin   +6 more
wiley   +1 more source