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Role of polymer graft stiffness in electrostatic-driven self-assembly of nanoparticles in solutions.
Phys Chem Chem Phys
January 2025
Department of Chemical Engineering, Indian Institute of Technology Gandhinagar, India.
Self-assembly of nanoparticles (NPs) in solution has garnered tremendous attention among researchers because of their electrical, chemical, and optoelectronic properties at the macroscale with potential applications in bio-imaging, bio-medicine, and therapeutics. Control of size, shape, and composition at the nanoscale is important in tuning the material's bulk properties. The grafting of NPs with polymers enables us to tune such bulk material properties at the nano level by controlling their assemblies, especially in solutions.
View Article and Find Full Text PDFPhospholipase-catalyzed degradation drives domain morphology and rheology transitions in model lung surfactant monolayers.
Soft Matter
September 2024
Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara, CA 93106, USA.
Lung surfactant is inactivated in acute respiratory distress syndrome (ARDS) by a mechanism that remains unclear. Phospholipase (PLA) plays an essential role in the normal lipid recycling processes, but is present in elevated levels in ARDS, suggesting it plays a role in ARDS pathophysiology. PLA hydrolyzes lipids such as DPPC-the primary component of lung surfactant-into palmitic acid (PA) and lyso-PC (LPC).
View Article and Find Full Text PDFRigidity percolation and active advection synergize in the actomyosin cortex to drive amoeboid cell motility.
Dev Cell
November 2024
Institut Pierre Gilles de Gennes, PSL Research University, 6 rue Jean Calvin, 75005 Paris, France; Institut Curie, PSL Research University, CNRS UMR 144, Paris, France. Electronic address:
Spontaneous locomotion is a common feature of most metazoan cells, generally attributed to the properties of actomyosin networks. This force-producing machinery has been studied down to the most minute molecular details, especially in lamellipodium-driven migration. Nevertheless, how actomyosin networks work inside contraction-driven amoeboid cells still lacks unifying principles.
View Article and Find Full Text PDFQuasi-1D Conductive Network Composites for Ultra-Sensitive Strain Sensing.
Adv Sci (Weinh)
September 2024
CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China.
Highly performance flexible strain sensor is a crucial component for wearable devices, human-machine interfaces, and e-skins. However, the sensitivity of the strain sensor is highly limited by the strain range for large destruction of the conductive network. Here the quasi-1D conductive network (QCN) is proposed for the design of an ultra-sensitive strain sensor.
View Article and Find Full Text PDFExcellent mechanical and electromagnetic interference shielding properties of polylactic acid/polycaprolactone/multiwalled carbon nanotube composites enabled by a multilayer structure design.
RSC Adv
June 2024
College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics Nanjing 211100 China
In this work, a special multilayer structure consisting of polylactic acid (PLA) and a co-continuous PLA/polycaprolactone (PCL)/multiwalled carbon nanotube (MWCNT) (ALM) composite with a double-percolated conductive network was fabricated layer-assembly coextrusion. It was revealed that PLA domains located at the layer interface could serve as rivets properly linking adjacent layers. Such a nacre-like structure with alternately stacked rigid PLA and flexible ALM increased the fracture strain to 354.
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