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http://dx.doi.org/10.1016/j.scib.2025.02.028 | DOI Listing |
ACS Omega
August 2025
Universidade de São Paulo, Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, Av. Prof. Lineu Prestes, 2242-Cidade Universitária, São Paulo, SP BR 05508-900, Brazil.
Polylactic acid (PLA), a widely used biopolymer, faces limitations in melt strength and miscibility with poly-(butylene adipate--terephthalate) (PBAT), requiring compatibilization strategies. This study uniquely investigates the combined effects of high dose of gamma irradiation (80-150 kGy) and low-aspect-ratio cellulose nanoparticles (CNPs) on PLA/PBAT blends, aiming to enhance compatibility and mechanical performance. Gamma irradiation induced chain scission and radical formation, improving blend compatibility but reducing mechanical properties at high doses due to excessive chain scission.
View Article and Find Full Text PDFPolymers (Basel)
August 2025
Packaging Innovation Center (LABEN), University of Santiago of Chile (USACH), Obispo Umaña 050, Santiago 9170201, Chile.
Improving the end-of-life performance of polylactic acid (PLA) for food packaging requires strategies that enhance biodegradability, solubility, and dispersibility without compromising essential material properties. PLA-based films were produced by melt extrusion using polyvinylpyrrolidone (PVP) as a hydrophilic modifier, aiming to enhance the water uptake and affinity of PLA, which may potentially lead to faster environmental degradation. Two PVPs with distinct molar masses at varying concentrations were used to investigate their effects on the structural, thermal, mechanical, optical, and barrier behavior of the films.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
August 2025
State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials, Shenzhen Campus of Sun Yat-sen University, Shenzhen, 518107, China.
Interfaces in heterogeneous bimetallic catalysts play a pivotal role in providing rich active sites and accelerating charge transfer during reaction process. However, designing an interface-rich catalyst with sufficient exposed active sites is crucial yet challenging. Janus catalysts containing bifunctional surfaces segregated by interfaces can boost the performance of electrochemical CO reduction by optimizing electronic structure and reaction pathway.
View Article and Find Full Text PDFACS Omega
August 2025
Department of Chemical and Biomolecular Engineering, Chonnam National University, Yeosu, Jeonnam 59626, South Korea.
The demand for alkyl lactates (methyl, ethyl, propyl, and butyl) has risen significantly due to their unique properties and wide industrial applications. Accurate vapor-liquid equilibrium data are vital for the design and optimization of separation techniques involving these compounds, particularly in systems using supercritical carbon dioxide (SC-CO) as a solvent. In this study, the phase transition of binary systems of CO + lactate (methyl, ethyl, propyl, butyl) was investigated at various temperatures (313.
View Article and Find Full Text PDFJ Pharm Sci
August 2025
Department of Industrial and Physical Pharmacy, Purdue University, West Lafayette, IN 47907, USA.
This study investigates the use of an octenylsuccinate-modified dendrimer-like biopolymer (OS-DLB) as a carrier matrix in the formulation of biodendrimeric solid dispersions (BDSDs) using hot melt extrusion (HME). Ibuprofen (IBU) and griseofulvin (GSF) were selected as model compounds due to their poor aqueous solubility - one limited by its hydrophobicity and the other by its strong crystal lattice, respectively. This study demonstrates that the BDSD formulation can significantly enhance the dissolution rates of the model compounds through a parallel liquid phase equilibrium, while retaining their predominantly crystalline state.
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