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Heptamethine cyanine-based polymeric nanoparticles for photothermal therapy in HCT116 human colon cancer model.
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School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand.
In this work, we synthesize a quinoline-based heptamethine cyanine, QuCy7, with sulfonate groups to enhance water solubility. This dye demonstrates exceptional near-infrared absorption beyond 750 nm, accompanied by photothermal properties but low photostability. Encapsulating QyCy7 with polyethylene glycol to form nanopolymer, QuCy7@mPEG NPs, addresses the issue of its photoinstability.
View Article and Find Full Text PDFReactive Brownian Dynamics of Chemically Fueled Droplets: Roles of Attraction and Deactivation Modes.
J Phys Chem B
January 2025
Applied Theoretical Physics - Computational Physics, Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, 79104 Freiburg, Germany.
The self-assembly of biological membraneless organelles can be mimicked by active droplets resulting from chemically fueled microphase separation. However, how the nonequilibrium, transient structure of these active droplets can be controlled through the physicochemical input parameters is not yet well understood. In our work, a chemically fueled two-state chemical reaction and subsequent droplet growth and decay are modeled with a reactive Brownian dynamics simulation in two spatial dimensions.
View Article and Find Full Text PDFOptimization of operating conditions for the catalytic alcoholysis of waste PET for the synthesis of BHET by sunflower seed husk matrix materials.
RSC Adv
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School of Petrochemical Engineering, Shenyang University of Technology Liaoyang 111003 China
A sunflower seed shell matrix catalyst (SMS-750) was prepared from sunflower seed shell waste by pretreatment and pyrolytic carbonization. A series of characterization analyses showed that the prepared catalyst was rich in Ca, Mg, K, and other mineral elements and mainly existed in the form of metal oxides. SMS-750 was used to catalyze the glycolysis of waste PET, and the main factors affecting the BHET yield were screened out by a one-way experimental design, and then the BHET yield was used as the response value, and the response surface method was used to design and analyze the effects of the respective variables and their interactions on the degradation of PET according to the principle of Box-Behnken central combinatorial design.
View Article and Find Full Text PDFExploring the Dynamic Coordination Sphere of Lanthanide Aqua Ions: Insights from rSCAN-3c Composite-DFT Born-Oppenheimer Molecular Dynamics Studies.
ACS Omega
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Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos 62210, México.
Article Synopsis
- BOMD simulations were conducted to explore the structure and dynamics of hydration shells around five trivalent lanthanide ions at room temperature, revealing complexities in accurately classifying their molecular geometry.
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Egg shape and color mediate acceptance thresholds in diverse avian host species with different rates of antiparasitic egg rejection.
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Program in Ecology, Evolution, and Conservation, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
Eggshell recognition in parental birds is vital for nest management, defense against brood parasitism, optimal embryonic development, and minimizing disease and predation risks. This process relies on acceptance thresholds balancing the risk of rejecting own eggs against the benefit of excluding foreign ones, following signal detection theory. We investigated the role of object shape in egg rejection decisions among three host species of the brown-headed cowbird (Molothrus ater), each with a varying known response to parasitic eggs.
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