Signatures of early microbial life from the Archean (4 to 2.5 Ga) eon

K Lepot - Earth-Science Reviews, 2020 - Elsevier
Abstract The Archean era (4 to 2.5 billion years ago, Ga) yielded rocks that include the
oldest conclusive traces of life as well as many controversial occurrences. Carbonaceous …

False biosignatures on Mars: anticipating ambiguity

S McMahon, J Cosmidis - Journal of the Geological Society, 2022 - lyellcollection.org
It is often acknowledged that the search for life on Mars might produce false positive results,
particularly via the detection of objects, patterns or substances that resemble the products of …

Biomimetic Mineralized CRISPR/Cas RNA Nanoparticles for Efficient Tumor-Specific Multiplex Gene Editing

Y Liang, J Zhang, C Xu, J Wang, W Han, J Yang… - ACS …, 2023 - ACS Publications
CRISPR/Cas9 systems have great potential to achieve sophisticated gene therapy and cell
engineering by editing multiple genomic loci. However, to achieve efficient multiplex gene …

Metabolically diverse primordial microbial communities in Earth's oldest seafloor-hydrothermal jasper

D Papineau, Z She, MS Dodd, F Iacoviello, JF Slack… - Science …, 2022 - science.org
The oldest putative fossils occur as hematite filaments and tubes in jasper-carbonate
banded iron formations from the 4280-to 3750-Ma Nuvvuagittuq Supracrustal Belt, Québec …

[图书][B] Life in the Universe

D Schulze-Makuch, LN Irwin - 2004 - Springer
While grounded in the hard sciences of physics, chemistry, geology, and astronomy, as well
as well-accepted principles in the life sciences, astrobiology remains the most speculative of …

Cellular remains in a~ 3.42-billion-year-old subseafloor hydrothermal environment

B Cavalazzi, L Lemelle, A Simionovici, SL Cady… - Science …, 2021 - science.org
Subsurface habitats on Earth host an extensive extant biosphere and likely provided one of
Earth's earliest microbial habitats. Although the site of life's emergence continues to be …

Direct CO2 Capture by Alkali‐Dissolved Cellulose and Sequestration in Building Materials and Artificial Reef Structures

G Reyes, M Vega‐Coloma, A Antonova… - Advanced …, 2023 - Wiley Online Library
Current carbon capture and utilization (CCU) technologies require high energy input and
costly catalysts. Here, an effective pathway is offered that addresses climate action by …

A universal geochemical scenario for formamide condensation and prebiotic chemistry

R Saladino, E Di Mauro… - Chemistry–A European …, 2019 - Wiley Online Library
The condensation of formamide has been shown to be a robust chemical pathway affording
molecules necessary for the origin of life. It has been experimentally demonstrated that …

Earth's earliest and deepest purported fossils may be iron-mineralized chemical gardens

S McMahon - Proceedings of the Royal Society B, 2019 - royalsocietypublishing.org
Recognizing fossil microorganisms is essential to the study of life's origin and evolution and
to the ongoing search for life on Mars. Purported fossil microbes in ancient rocks include …

Mineral self-organization on a lifeless planet

JM García-Ruiz, MA Van Zuilen, W Bach - Physics of Life Reviews, 2020 - Elsevier
It has been experimentally demonstrated that, under alkaline conditions, silica is able to
induce the formation of mineral self-assembled inorganic-inorganic composite materials …