Article
Biochemistry & Molecular Biology
Anna Stepien, Karolina Grzyb
Summary: This study evaluated the stability of two component powder systems containing inulin and soy protein isolate using water activity and glass transition concepts. Moisture adsorption isotherms of the powders were determined and fitted to mathematical models. The glass transition temperature and equilibrium moisture content of the powders were analyzed. Diagrams were constructed to investigate the relationship between water activity, equilibrium moisture content, and glass transition. The critical moisture content values estimated based on both concepts were higher than the monolayer capacity values.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Geochemistry & Geophysics
Ruyong Feng
Summary: In the process of coalbed methane development, accurately predicting gas content is crucial for efficient development. This study proposes a gas content evaluation method based on adsorption theory and production dynamic analysis, which improves prediction accuracy and saves development costs. The method is suitable for noncoring well prediction and can provide a scientific basis for the development and reserve evaluation of coalbed methane reservoirs.
Article
Chemistry, Physical
Muhammad Arif, Hamid Raza, Shah M. Haroon, Khalida Naseem, Hammad Majeed, Fatima Tahir, Urooj Fatima, Sobhy M. Ibrahim, Shams Ul Mahmood
Summary: A new systematic method has been developed to effectively remove both metal ions and organic pollutants from water using a P(NVC-MAAc) microgel system. The loaded copper (II) ions are in-situ reduced to copper nanoparticles, and the resulting hybrid microgels are used as catalysts to reduce toxic pollutants from water.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Environmental
Muhammad Arif
Summary: This paper introduces a new system suitable for simultaneous removal of metal ions and organic dyes. Silica microgels surrounded by poly(N-vinylcaprolactam-acrylic acid) were created using the free radical precipitation polymerization method. The system was used to extract iron (III) ions from water and was characterized using various techniques. The resulting iron nanoparticles loaded in the microgels were found to efficiently catalyze the reduction of organic pollutants and toxic transition metal ions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Biochemistry & Molecular Biology
Leiming Jiang, Qiuyang Chen, Mingrong Bei, Mengting Shao, Jianzhen Xu
Summary: Interactions between non-coding RNA and RNA binding protein play a crucial role in gene regulation and cancer progression. Dysregulated RBP-ncRNA circuits are enriched with cancer-associated molecules and can serve as prognostic biomarkers.
COMPUTATIONAL AND STRUCTURAL BIOTECHNOLOGY JOURNAL
(2021)
Article
Engineering, Environmental
Tianhong Nie, Xing Yang, Hanbo Chen, Karin Muller, Sabry M. Shaheen, Joerg Rinklebe, Hocheol Song, Song Xu, Fengchang Wu, Hailong Wang
Summary: This study investigated the influence of aging on pig- and P. orientalis-derived biochars on the sorption capacity for Cd and Zn in biochar-treated soils. The sorption capacity increased with biochar application rates, and aging led to enhanced sorption capacity due to increased oxygen-containing functional groups. The presence of DEP enhanced sorption capacity in fresh biochar treatments, but not in aged treatments.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Geochemistry & Geophysics
G. Ratie, K. Zhang, M. Iqbal, D. Vantelon, F. Mahe, C. Rivard, M. Komarek, M. Bouhnik-Le Coz, A. Dia, K. Hanna, M. Davranche, R. Marsac
Summary: In this study, the oxidation of Ce(III) to Ce(IV) on goethite was investigated using modeling and X-ray absorption spectroscopy. The results showed that the oxidized Ce existed on goethite with a Ce(III)/Ce(IV) ratio depending on the Ce concentration in the solution. The main driving force for Ce(III) oxidation on goethite was suggested to be the surface precipitation of Ce(IV)-hydroxides.
Article
Chemistry, Physical
Jonina Felbinger, Inga Buerger, Marc Linder
Summary: In this study, a modified temperature-controlled sorption characterization technique is presented, which allows for measurements of sorption properties in vacuum. The method is validated and demonstrated through reference measurements of an AB5-type alloy. The results show good agreement with literature data, confirming the accuracy of the technique in measuring hydrogen sorption behavior.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Construction & Building Technology
Kevin Zhang, Russell Richman
Summary: Hygrothermal modelling is important for exploring building durability, especially in organic building materials like wood. This study found that not accounting for varying sorption isotherms in OSB and plywood sheathing can lead to over-predicting mould growth risk.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Biochemical Research Methods
Lishen Zhang, Chengqian Lu, Min Zeng, Yaohang Li, Jianxin Wang
Summary: In this study, we propose a method called CRMSS for discriminating circRNA-RBP binding sites based on multi-scale characterizing sequence and structure features. The CRMSS achieves superior performance over state-of-the-art methods in predicting circRNA-RBP binding.
BRIEFINGS IN BIOINFORMATICS
(2023)
Article
Biophysics
Sayane Shome, Kejue Jia, Sanjeevi Sivasankar, Robert L. Jernigan
Summary: This study focuses on the intermolecular interactions of E-cadherin, using coevolutionary sequence analysis and molecular dynamics simulations to identify known and novel interaction sites. The study reveals the existence of a potential new cis interface at the EC3-EC5 domain in addition to established interaction sites, and identifies specific mutations that impair cell adhesion within E-cadherin assemblies.
BIOPHYSICAL JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Sandra Rocha, Ranjeet Kumar, Bengt Norden, Pernilla Wittung-Stafshede
Summary: The study reveals that alpha-synuclein binds to negatively charged vesicles and reorients its helix structure under shear flow, tilting into the vesicle membrane. The presence of flow accelerates the reorientation dynamics of the protein, suggesting a potential flow catalysis mechanism to overcome steric barriers.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Multidisciplinary Sciences
Melusine Bleu, Fanny Mermet-Meillon, Verena Apfel, Louise Barys, Laura Holzer, Marianne Bachmann Salvy, Rui Lopes, Ines Amorim Monteiro Barbosa, Cecile Delmas, Alexandra Hinniger, Suzanne Chau, Markus Kaufmann, Simon Haenni, Karolin Berneiser, Maria Wahle, Ivana Moravec, Alexandra Vissieres, Tania Poetsch, Erik Ahrne, Nathalie Carte, Johannes Voshol, Elisabeth Bechter, Jacques Hamon, Marco Meyerhofer, Dirk Erdmann, Matteo Fischer, Therese Stachyra, Felix Freuler, Sascha Gutmann, Cesar Fernandez, Tobias Schmelzle, Ulrike Naumann, Guglielmo Roma, Kate Lawrenson, Cristina Nieto-Oberhuber, Amanda Cobos-Correa, Stephane Ferretti, Dirk Schuebeler, Giorgio Giacomo Galli
Summary: The PAX8 transcription factor plays a critical role in thyroid and urogenital system development and has an oncogenic function in renal and ovarian cancers. Through interaction with PRDM3 from the MECOM locus, PAX8 regulates a gene expression module involved in adhesion and extracellular matrix, contributing to ovarian tumorigenesis.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Nathan Nakamura, Laisuo Su, Han Wang, Noam Bernstein, Shikhar Krishn Jha, Elizabeth Culbertson, Haiyan Wang, Simon J. L. Billinge, C. Stephen Hellberg, B. Reeja-Jayan
Summary: Exposure to EM fields during materials synthesis can lead to rapid crystallization and phase transitions. Low-energy EM fields can influence atomic structural arrangements, with phase stability mediated by oxygen vacancy-induced structural distortions dependent on local electric field intensity. The link between field strength and atomic structure opens up new possibilities for exploring phase space and material properties.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Food Science & Technology
Huiqin Shi, Xinyun Zhou, Yunping Yao, Aiyu Qu, Kaili Ding, Guozhong Zhao, Shao Quan Liu
Summary: This review explores the role of microbiota in vinegar fermentation, focusing on the impact of raw materials, microbial composition, and environmental factors. The findings provide guidance for the design of microbiota in vinegar fermentation, ensuring consistent vinegar quality. The review is important for monitoring, controlling, and improving the quality of vinegar.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Polymer Science
Volkan Can, Zdravko Kochovski, Valentin Reiter, Nikolai Severin, Miriam Siebenbuerger, Ben Kent, Justus Just, Juergen P. Rabe, Matthias Ballauff, Oguz Okay
Article
Chemistry, Physical
Marta Galanti, Duccio Fanelli, Stefano Angioletti-Uberti, Matthias Ballauff, Joachim Dzubiella, Francesco Piazza
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2016)
Article
Chemistry, Physical
S. Risse, C. J. Jafta, Y. Yang, N. Kardjilov, A. Hilger, I. Manke, M. Ballauff
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2016)
Article
Chemistry, Physical
Qidi Ran, Xiao Xu, Pradip Dey, Shun Yu, Yan Lu, Joachim Dzubiella, Rainer Haag, Matthias Ballauff
JOURNAL OF CHEMICAL PHYSICS
(2018)
Article
Chemistry, Physical
Stefano Angioletti-Uberti, Matthias Ballauff, Joachim Dzubiella
Article
Polymer Science
Jacek Walkowiak, Yan Lu, Michael Gradzielski, Stefan Zauscher, Matthias Ballauff
MACROMOLECULAR RAPID COMMUNICATIONS
(2020)
Article
Biochemistry & Molecular Biology
Jacek Janusz Walkowiak, Matthias Ballauff, Ralf Zimmermann, Uwe Freudenberg, Carsten Werner
Article
Engineering, Chemical
Daniel Besold, Sebastian Risse, Yan Lu, Joachim Dzubiella, Matthias Ballauff
Summary: The kinetic study on the reduction of 4-nitrophenol with borohydride catalyzed by silver nanoparticles showed that the particles are immobilized deep inside a PNIPAM hydrogel shell. A kinetic model related to the analysis of the reaction catalyzed by gold was presented, with results fitting well and indicating the substantial influence of NH2 adsorption on the kinetics of silver. The study also revealed a non-Arrhenius dependency of the reaction rate at different temperatures, caused by the thermoresponsive PNIPAM hydrogel, and provided insights into the partitioning coefficients of reactants and products in PNIPAM-based catalysts.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Nanoscience & Nanotechnology
Arne Ronneburg, Luca Silvi, Joshaniel Cooper, Karsten Harbauer, Matthias Ballauff, Sebastian Risse
Summary: The lithiation of crystalline silicon was studied using operando neutron reflectometry over six cycles, revealing the effects of an artificial aluminum oxide coating on suppressing the solid electrolyte interphase layer-related aging effects and increasing lithium trapping. Two distinct zones with high and low lithium concentrations were found in the silicon, separated by a broadening sharp interface. Neutron reflectometry, electrochemical analysis, and impedance spectroscopy were used to quantify lithium distribution and consumption within the silicon.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Jacek J. Walkowiak, Matthias Ballauff
Summary: The theoretical model presented in this study accounts for the free energy Delta G(b) of complex formation between a highly charged polyelectrolyte and a protein, taking into consideration the effect of released counterions and the uptake or release of water molecules. The model can describe the dependence of Delta G(b) on temperature and salt concentration, with an increase in salt concentration making counterion release less effective for binding and leading to a more advantageous release of water molecules during complex formation. Experimental data on complex formation between synthetic and natural polyelectrolytes and proteins shows agreement with the theory.
Article
Biochemistry & Molecular Biology
Chuanxiong Nie, Anil Kumar Sahoo, Roland R. Netz, Andreas Herrmann, Matthias Ballauff, Rainer Haag
Summary: The novel SARS-CoV-2 mutant Omicron, with its over 60 mutations, is likely to spread and dominate worldwide. The higher infection potential of Omicron may be attributed to the increased occurrence of positively charged amino acids in its spike protein, resulting in enhanced binding to cellular receptors.
Article
Chemistry, Physical
Weronika Malicka, Rainer Haag, Matthias Ballauff
Summary: This study presents a thermodynamic investigation of the interaction between heparin and lysozyme in the presence of potassium glutamate (KGlu). The results show that increasing KGlu concentration decreases the binding free energy due to counterion release and changes in hydration. The characteristic temperature in the presence of KGlu is smaller than that in the presence of NaCl, and the change in specific heat becomes more negative with increasing salt concentration.
JOURNAL OF PHYSICAL CHEMISTRY B
(2022)
Article
Biochemistry & Molecular Biology
Dusica Maysinger, Issan Zhang, Pei You Wu, Marten Kagelmacher, Haiming Daniel Luo, Jayachandran N. Kizhakkedathu, Jens Dernedde, Matthias Ballauf, Rainer Haag, Adeola Shobo, Gerhard Multhaup, R. Anne McKinney
Summary: The objective of this study was to investigate the interaction between polyglycerols with sulfate or sialic acid functional groups and high mobility group box 1 (HMGB1). The study aimed to determine if polyglycerols could prevent the loss of morphological plasticity in excitatory neurons in the hippocampus. The results suggest that dendritic and linear polyglycerols can interact with HMGB1 and prevent dendritic spine loss in excitatory neurons.
ACS CHEMICAL NEUROSCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Uwe Freudenberg, Passant Atallah, Jens-Uwe Sommer, Carsten Werner, Matthias Ballauff
Summary: A model is proposed to explain the interaction between biological signaling proteins and highly charged polymer networks. The model takes into account the immobilization of counterions on highly charged chains and the Donnan equilibrium between the network and the aqueous solution. The model accurately compares with experimental data on biohybrid polymer networks interacting with signaling proteins.
MACROMOLECULAR BIOSCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Matthias Ballauff
Summary: This article investigates the transition of proteins in aqueous solution with various salts or uncharged solutes. A phenomenological model is presented to describe the effect of solute concentration on transition temperature, taking into account the change in the number of counterions and hydration. The results highlight the influence of ions and hydration on the free energy of transition, providing insights into the physical mechanisms underlying protein transitions.