Results 41 to 50 of about 228,478 (298)

Numerical Integration of Weight Loss Curves for Kinetic Analysis

Thermo, 2021
Research abounds in the literature on kinetic analyses using thermogravimetric (TG) runs. Many of these studies use approximations of integral or derivative forms of the kinetic law and all of them use programmed temperatures.
Juan A. Conesa
doaj   +1 more source

Grafted block complex coacervate core micelles and their effect on protein adsorption on silica and polystyrene [PDF]

, 2010
peer reviewedWe have studied the formation and the stability of grafted block complex coacervate core micelles (C3Ms) in solution and the influence of grafted block C3M coatings on the adsorption of the proteins beta-lactoglobulin, bovine serum albumin ...
Arie de Keizer, Cohen Stuart, Martien A., Brzozowska, Agata M., Norde, Willem, Christophe Detrembleur, Detrembleur, Christophe, Cohen Stuart, M.A., Agata M. Brzozowska, Willem Norde, de Keizer, Arie, Keizer, A., de, Stuart, Martien Cohen, Norde, W., Brzozowska, A.M., Detrembleur, C., Martien A. Cohen Stuart, de Keizer, A.   +16 more
core   +2 more sources

FRET Measurement of Polymer Response under Shear

Sensors, 2021
Polymer solutions under shear flow are often observed in manufacturing processes. Classically, polymer behavior is represented by Kuhn’s bead-spring model, in which only the elongation of polymer chains is assumed.
Ryo Iwao, Hiroki Yamaguchi, Makoto Obata, Yu Matsuda   +3 more
doaj   +1 more source

Toxicity and Functional Tissue Responses of Two Freshwater Fish after Exposure to Polystyrene Microplastics

Toxics, 2021
Microplastics (MPs)’ ingestion has been demonstrated in several aquatic organisms. This process may facilitate the hydrophobic waterborne pollutants or chemical additives transfer to biota.
Martha Kaloyianni, Dimitra C. Bobori, Despoina Xanthopoulou, Glykeria Malioufa, Ioannis Sampsonidis, Stavros Kalogiannis, Konstantinos Feidantsis, Georgia Kastrinaki, Anastasia Dimitriadi, George Koumoundouros, Dimitra A. Lambropoulou, George Z. Kyzas, Dimitrios N. Bikiaris   +12 more
doaj   +1 more source

Variable Fitness Response of Two Rotifer Species Exposed to Microplastics Particles: The Role of Food Quantity and Quality

Toxics, 2021
Plastic pollution is an increasing environmental problem, but a comprehensive understanding of its effect in the environment is still missing. The wide variety of size, shape, and polymer composition of plastics impedes an adequate risk assessment.
Claudia Drago, Guntram Weithoff
doaj   +1 more source

Fused Deposition Modeling of Microfluidic Chips in Transparent Polystyrene

Micromachines, 2021
Polystyrene (PS) is one of the most commonly used thermoplastic materials worldwide and plays a ubiquitous role in today’s biomedical and life science industry and research.
Markus Mader, Christof Rein, Eveline Konrat, Sophia Lena Meermeyer, Cornelia Lee-Thedieck, Frederik Kotz-Helmer, Bastian E. Rapp   +6 more
doaj   +1 more source

Role of Acetone in the Formation of Highly Dispersed Cationic Polystyrene Nanoparticles

Chemical and Process Engineering, 2017
A modified emulsion polymerisation synthesis route for preparing highly dispersed cationic polystyrene (PS) nanoparticles is reported. The combined use of 2,2′-azobis[2-(2-imidazolin- 2-yl)propane] di-hydrochloride (VA-044) as the initiator and acetone ...
Ernawati Lusi, Balgis Ratna, Ogi Takashi, Okuyama Kikuo, Takada Tomonori   +4 more
doaj   +1 more source

Preparation of Functional Long‐Subchain Hyperbranched Polystyrenes via Post‐polymerization Modification: Study on the Critical Role of Chemical Stability of Branching Linkage

ChemistryOpen, 2020
Post‐polymerization modification (PPM) is one of the most powerful strategy for preparing polymers with functional groups that cannot be synthesized by direct polymerization.
Mo Zhu, Nairong Hao, Muhammad Zaheer, Dr. Jinxian Yang, Prof. Dr. Lianwei Li   +4 more
doaj   +1 more source

The Formation of Protein Corona by Nanoplastics and Horseradish Peroxidase

Nanomaterials, 2022
In theory, nanoplastics (NPs) can adsorb biological macromolecules, such as proteins, in the surrounding environment to form protein corona (PC). In this study, we focus on amino polystyrene (PS) NPs and horseradish peroxidase (HRP) to explore the ...
Jing Zhou, Yanni Yu, Yaning Luan, Wei Dai   +3 more
doaj   +1 more source

Effects of the Antidepressant Amitriptyline on Juvenile Brown Trout and Their Modulation by Microplastics

Toxics, 2022
Pharmaceuticals such as antidepressants are designed to be bioactive at low concentrations. According to their mode of action, they can also influence non-target organisms due to the phylogenetic conservation of molecular targets.
Hannah Schmieg, Stefanie Krais, Kathrin Kübler, Aki S. Ruhl, Isabelle M. Schmidgall, Christian Zwiener, Heinz-R. Köhler, Rita Triebskorn   +7 more
doaj   +1 more source