Thomas Koop
YOU?
Author Swipe
View article: Solving the “General Elution Problem” of Ion Mobility Spectrometry: Single-Run Voltage Sweep
Solving the “General Elution Problem” of Ion Mobility Spectrometry: Single-Run Voltage Sweep Open
While modern mobility methods have shifted toward vacuum-based techniques that allow advanced ion manipulations to improve resolution, atmospheric pressure ion mobility spectrometry (IMS) cells continue to find utility in primary security …
View article: Review of interactive open-access publishing with community-based open peer review for improved scientific discourse and quality assurance
Review of interactive open-access publishing with community-based open peer review for improved scientific discourse and quality assurance Open
Scientific discourse and quality assurance can be improved by open-access (OA) publishing with public peer review and community discussion. Over 25 years, the viability of this approach has been proven by the interactive OA journal Atmosph…
View article: Opinion: Improved scientific discourse and quality assurance byinteractive open access publishing with community-basedmulti-stage open peer review in an open science landscape
Opinion: Improved scientific discourse and quality assurance byinteractive open access publishing with community-basedmulti-stage open peer review in an open science landscape Open
Scientific discourse and quality assurance can be improved by open science through public peer review and community discussion of preprints on open access (OA) publishing platforms. Over 25 years, the viability and benefits of this approac…
View article: Paul J. Crutzen – a pioneer in Earth system science and a founding member of the journal <i>Atmospheric Chemistry and Physics</i>
Paul J. Crutzen – a pioneer in Earth system science and a founding member of the journal <i>Atmospheric Chemistry and Physics</i> Open
Paul Jozef Crutzen was a pioneer in the atmospheric sciences, a kind-hearted and humorous person with empathy for the private lives of his colleagues and students, and a man who upheld the highest scientific standards for himself and for o…
View article: Comment on egusphere-2023-1467
Comment on egusphere-2023-1467 Open
Abstract. Paul J. Crutzen was a pioneer in atmospheric sciences. At the same time, he was a kind-hearted, humorous person with empathy for the private lives of his colleagues and students, but also with the highest scientific standards for…
View article: Paul J. Crutzen – a pioneer in Earth system science and a founding member of the journal “Atmospheric Chemistry and Physics”
Paul J. Crutzen – a pioneer in Earth system science and a founding member of the journal “Atmospheric Chemistry and Physics” Open
Paul J. Crutzen was a pioneer in atmospheric sciences. At the same time, he was a kind-hearted, humorous person with empathy for the private lives of his colleagues and students, but also with the highest scientific standards for himself a…
View article: Ice nucleation in aqueous solutions of short- and long-chain poly(vinyl alcohol) studied with a droplet microfluidics setup
Ice nucleation in aqueous solutions of short- and long-chain poly(vinyl alcohol) studied with a droplet microfluidics setup Open
Poly(vinyl alcohol) (PVA) has ice binding and ice nucleating properties. Here, we explore the dependence of the molecular size of PVA on its ice nucleation activity. For this purpose, we studied ice nucleation in aqueous solutions of PVA s…
View article: Machine-Learning-Based Prediction of the Glass Transition Temperature of Organic Compounds Using Experimental Data
Machine-Learning-Based Prediction of the Glass Transition Temperature of Organic Compounds Using Experimental Data Open
Knowledge of the glass transition temperature of molecular compounds that occur in atmospheric aerosol particles is important for estimating their viscosity, as it directly influences the kinetics of chemical reactions and particle phase s…
View article: Bielefeld Molecular Organic Glasses (BIMOG) Database
Bielefeld Molecular Organic Glasses (BIMOG) Database Open
The Bielefeld Molecular Organic Glasses (BIMOG) Database is based on a compiled dataset of experimental glass transition temperatures (Tg). The BIMOG database is the basis for our machine learning model for predicting the glass transition …
View article: Bielefeld Molecular Organic Glasses (BIMOG) Database
Bielefeld Molecular Organic Glasses (BIMOG) Database Open
The Bielefeld Molecular Organic Glasses (BIMOG) Database is based on a compiled dataset of experimental glass transition temperatures (Tg). The BIMOG database is the basis for our machine learning model for predicting the glass transition …
View article: Glass Transition Temperature Prediction via Machine Learning
Glass Transition Temperature Prediction via Machine Learning Open
Knowledge of the glass transition temperature of molecular compounds in atmospheric aerosol particles is important for estimating their viscosity, which directly influences chemical reaction kinetics and phase state. While there is a great…
View article: Insights into Aqueous Glyoxal Chemistry via Glass Transition Measurements
Insights into Aqueous Glyoxal Chemistry via Glass Transition Measurements Open
Atmospheric aerosols affect the Earth’s radiative budget directly by scattering, reflecting, and absorbing light and also indirectly by acting as nuclei for the formation of liquid water and ice clouds. Many of these effects are dire…
View article: Ice nucleating properties of the sea ice diatom <i>Fragilariopsis cylindrus</i> and its exudates
Ice nucleating properties of the sea ice diatom <i>Fragilariopsis cylindrus</i> and its exudates Open
In this study, we investigated the ice nucleation activity of the Antarctic sea ice diatom Fragilariopsis cylindrus. Diatoms are the main primary producers of organic carbon in the Southern Ocean, and the Antarctic sea ice diatom F. cylind…
View article: Reply on RC1
Reply on RC1 Open
Abstract. In this study, we investigated the ice nucleation activity of the Antarctic sea ice diatom Fragilariopsis cylindrus. Diatoms are the main primary producers of organic carbon in the Southern Ocean, and the Antarctic sea ice diatom…
View article: Reply on RC2
Reply on RC2 Open
In this study, we investigated the ice nucleation activity of the Antarctic sea ice diatom Fragilariopsis cylindrus. Diatoms are the main primary producers of organic carbon in the Southern Ocean and the Antarctic sea ice diatom F. cylindr…
View article: Water-organizing motif continuity is critical for potent ice nucleation protein activity
Water-organizing motif continuity is critical for potent ice nucleation protein activity Open
Bacterial ice nucleation proteins (INPs) can cause frost damage to plants by nucleating ice formation at high sub-zero temperatures. Modeling of Pseudomonas borealis INP by AlphaFold suggests that the central domain of 65 tandem sixteen-re…
View article: Supplementary material to "Ice nucleating properties of the sea ice diatom Fragilariopsis cylindrus and its exudates"
Supplementary material to "Ice nucleating properties of the sea ice diatom Fragilariopsis cylindrus and its exudates" Open
Determination of INP concentrationIn the main paper, we defined ′ as the plateau region separating heterogeneous and homogenous freezing.Since ′ varies with the number of droplets containing at least one INP, an experimentally determined ′…
View article: Ice nucleating properties of the sea ice diatom Fragilariopsis cylindrus and its exudates
Ice nucleating properties of the sea ice diatom Fragilariopsis cylindrus and its exudates Open
In this study, we investigated the ice nucleation activity of the Antarctic sea ice diatom Fragilariopsis cylindrus. Diatoms are the main primary producers of organic carbon in the Southern Ocean and the Antarctic sea ice diatom F. cylindr…
View article: Specific Ion–Protein Interactions Influence Bacterial Ice Nucleation
Specific Ion–Protein Interactions Influence Bacterial Ice Nucleation Open
Ice nucleation‐active bacteria are the most efficient ice nucleators known, enabling the crystallization of water at temperatures close to 0 °C, thereby overcoming the kinetically hindered phase transition process at these conditions. Usin…
View article: Ice Nucleation Properties of Ice-binding Proteins from Snow Fleas
Ice Nucleation Properties of Ice-binding Proteins from Snow Fleas Open
Ice-binding proteins (IBPs) are found in many organisms, such as fish and hexapods, plants, and bacteria that need to cope with low temperatures. Ice nucleation and thermal hysteresis are two attributes of IBPs. While ice nucleation is pro…
View article: Size-dependent ice nucleation by airborne particles during dust events in the eastern Mediterranean
Size-dependent ice nucleation by airborne particles during dust events in the eastern Mediterranean Open
The prediction of cloud ice formation in climate models remains a challenge, partly due to the complexity of ice-related processes. Mineral dust is a prominent aerosol in the troposphere and is an important contributor to ice nucleation in…
View article: Size-dependent ice nucleation by airborne particles during dust eventsin the Eastern Mediterranean
Size-dependent ice nucleation by airborne particles during dust eventsin the Eastern Mediterranean Open
Predictions of cloud ice formation in climate models remain a challenge, partly due to the complexity of ice-related processes. Mineral dust is a prominent aerosol in the troposphere and is known to be an important contributor to ice nucle…
View article: A comprehensive characterization of ice nucleation by three different types of cellulose particles immersed in water
A comprehensive characterization of ice nucleation by three different types of cellulose particles immersed in water Open
We present the laboratory results of immersion freezing efficiencies of cellulose particles at supercooled temperature (T) conditions. Three types of chemically homogeneous cellulose samples are used as surrogates that represent supermicro…
View article: The Fifth International Workshop on Ice Nucleation phase 2 (FIN-02): laboratory intercomparison of ice nucleation measurements
The Fifth International Workshop on Ice Nucleation phase 2 (FIN-02): laboratory intercomparison of ice nucleation measurements Open
The second phase of the Fifth International Ice Nucleation Workshop (FIN-02) involved the gathering of a large number of researchers at the Karlsruhe Institute of Technology's Aerosol Interactions and Dynamics of the Atmosphere (AIDA) faci…
View article: Physical state of 2-methylbutane-1,2,3,4-tetraol in pure and internally mixed aerosols
Physical state of 2-methylbutane-1,2,3,4-tetraol in pure and internally mixed aerosols Open
2-Methylbutane-1,2,3,4-tetraol (hereafter named tetraol) is an important oxidation product of isoprene and can be considered as a marker compound for isoprene-derived secondary organic aerosols (SOAs). Little is known about this compound's…
View article: A comprehensive characterization of ice nucleation by three different types of cellulose particles immersed in water: lessons learned and future research directions
A comprehensive characterization of ice nucleation by three different types of cellulose particles immersed in water: lessons learned and future research directions Open
We present the laboratory results of immersion freezing efficiencies of cellulose particles at supercooled temperature (T) conditions. Three types of chemically homogeneous cellulose samples are used as surrogates that represent supermicro…