Results 61 to 70 of about 267,461 (212)

Negotiating in a Foreign Land: Understanding the Curious Interactions Between Intracellular Mitochondria and Internalized Nanoparticles

Advanced Materials Interfaces, Volume 13, Issue 16, 18 August 2026.
Therapeutic nano‐drug delivery systems interact with cellular mitochondria in a multitude of ways. While the complexity of such interactions disrupts the mitochondrial electron transport chain and increases reactive oxygen species production, thereby contributing to nanoparticle toxicity, they also present unique theranostic opportunities in diseases ...
Sourav Bhattacharjee
wiley   +1 more source

NanoSIMS-Analyse und hochauflösende Elektronenmikroskopie an präsolaren Silikaten aus roten Riesensternen und Supernovaexplosionen [PDF]

, 2009
This thesis deals with the analysis of “presolar” silicates and oxides by high resolution mass spectrometry and electron microscopy techniques. This “stardust” was identified by its extreme oxygen isotopic anomalies, which point to nucleosynthetic ...
Vollmer, Christian
core  

The dust budget crisis in high-redshift submillimetre galaxies [PDF]

, 2014
KR acknowledges support from the European Research Council Starting Grant (P.I. V. Wild). HLG acknowledges support from the Science, Technology and Facilities Council.We apply a chemical evolution model to investigate the sources and evolution of dust in
Alfonso Aragon-Salamanca, van der Werf, P., Haley Gomez, Rowlands, K., Gomez, H.L., Loretta Dunne, Elisabete da Cunha, Steve Maddox, Maddox, S., Gomez, H. L., da Cunha, E., Aragón-Salamanca, Alfonso, Dunne, L., Kate Rowlands, Dye, S., van der Werf, Paul, Aragón-Salamanca, A., Simon Dye, Gomez, H., Paul van der Werf   +19 more
core   +1 more source

Consequences of the Solar System passage through dense interstellar clouds [PDF]

Annales Geophysicae, 2003
Several consequences of the passage of the solar system through dense interstellar molecular clouds are discussed. These clouds, dense (more than 100 cm-3), cold (10–50 K) and extended (larger than 1 pc), are characterized by a gas-to-dust mass ...
A. G. Yeghikyan, A. G. Yeghikyan, H. J. Fahr   +2 more
doaj   +1 more source

AI Based Velocity Calibration for Cassini's Cosmic Dust Analyzer (CDA)

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract This paper presents a novel AI‐based velocity calibration method for the Cosmic Dust Analyzer (CDA) onboard the Cassini spacecraft, in particular for impacts on the large Impact Ionization Detector (IID). The legacy polynomial calibration function, derived from laboratory measurements at a dust accelerator facility, assigns a velocity ...
Thomas Albin, Jonas Simolka, Ralf Srama
wiley   +1 more source

Novel algorithms for the understanding of the chemical cosmos [PDF]

, 2015
Molecular data from the interstellar medium (ISM) contain information that holds the key to understanding our chemically controlled cosmos and to unlocking the secrets of our universe.
Makrymallis, A
core  

Comet Dust: Connections with Interstellar Dust [PDF]

Symposium - International Astronomical Union, 1989
The Comet Halley campaigns resulted in an enormously better understanding of the composition of comets. Silicates, organic compounds, and volatile ices comprised ofH2O, CO, CO2,S2,CN, and possiblyCH4andOCSoccur in comet grains. These are all known or suspected constituents of interstellar dust.
openaire   +1 more source

Evaluating maturity of organic matter in hydrated C1 and CM‐like clasts and a dehydrated clast within a polymict eucrite and a howardite

Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1965-1993, August 2026.
Abstract Volatile‐rich xenolithic clasts in different types of brecciated meteorites represent unique pristine solar system material. This study investigates the maturity and thermal history of organic matter using Raman spectroscopy and aqueous alteration effects using infrared spectroscopy in the matrix of 15 volatile‐rich clasts (C1 and CM‐like ...
Swarna Prava Das, Alessandro Maturilli, Aurélie Van den Neucker, Markus Patzek, Dipak Kumar Panda, Gopal K. Pradhan, Guneshwar Thangjam, Surya Snata Rout   +7 more
wiley   +1 more source

Raman analysis of organic refractory materials after energetic processing: Evidence for amorphous carbon on TNOs and comets

Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1994-2015, August 2026.
Abstract Amorphous carbon (αC) is found in various extraterrestrial particles, including those thought to originate from the outer Solar System. αC can form through two main processes involving C‐rich materials: exposure to energetic charged particles and thermal processing.
M. Germanà, A. Vyjidak, G. A. Baratta, B. M. Giuliano, R. G. Urso, C. Scirè, D. Fulvio, T. Grassi, P. Jusko, P. Caselli, M. E. Palumbo   +10 more
wiley   +1 more source

Hidden metallic iron in amorphous silicate dust?

Astronomy & Astrophysics
Context. Amorphous silicate dust is a major component in the interstellar and circumstellar dust formed in the outflow of asymptotic giant branch (AGB) stars.
Enomoto H., Takigawa A., Chihara H., Koike C.   +3 more
doaj   +1 more source