98%
921
2 minutes
20
One of the greatest challenges in colloidal self-assembly is to obtain multiple distinct but transformable suprastructures from the same particles in monophasic solvent. Here, we combined deformable and rigid lobes in snowman-shaped amphiphilic Janus nanoparticles (JNPs). These JNPs exhibited excellent ability to self-assemble into micelles, worms, mini-capsules, giant- and elongated-vesicles. This rich suprastructural diversity was obtained by kinetic manipulation of the self-assembly conditions. The suprastructures consist of four to thousands of highly oriented JNPs with dimensions ranging from 500-nanometer to 30-μm. Moreover, the suprastructures can be transformed into one another or dissembled into individual particles. These features make colloidal assembly highly comparable to that of amphiphilic molecules, however, key differences were discovered.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1021/acs.jpclett.8b00206 | DOI Listing |
J Colloid Interface Sci
September 2025
Department of Radiation Oncology, Radiation Oncology Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, University of Electronic Science and Technology of China, Chengdu 610041, China. Electronic address: Zhaoy
Lanthanide-doped fluoride nanoparticles show great potential for optical thermometry and bioimaging. However, their applications are still constrained by inherent limitations in luminescence intensity and functional versatility. To overcome these challenges, we propose a core-active shell-inert shell nanostructure that integrates multifunctional capabilities within a single platform.
View Article and Find Full Text PDFBiomater Adv
September 2025
Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, Hubei, 430060, PR China. Electronic address:
Hemostatic intervention at the bleeding site during early-phase wound management plays a crucial role in reducing trauma-induced complications and mortality, while advanced wound dressings facilitate hemorrhage control, exudate management, and antimicrobial protection to promote optimal healing outcomes. To address these issues, we developed a multifunctional collagen/silk fibroin/Mg(OH)₂ (Col/SF/Mg(OH)₂) composite sponge combining enhanced mechanical strength, rapid hemostasis, and broad-spectrum antibacterial activity. The incorporation of silk fibroin (SF) through covalent crosslinking increased the elastic modulus by 4.
View Article and Find Full Text PDFAdv Mater
September 2025
State Key Laboratory of Polymer Science and Technology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.
Delivering therapeutics across the blood-brain barrier (BBB) remains a major challenge in ischemic stroke therapy. Ischemic stroke induces upregulation of various inflammatory membrane receptors on brain endothelial cells, offering potential entry points for receptor-mediated transcytosis. This study proposes a universal targeting strategy by employing inflammatory pathway antagonists as targeting ligands, which broadens the spectrum of available ligands beyond traditional receptor-binding molecules.
View Article and Find Full Text PDFLangmuir
September 2025
Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Kamrup, Assam 781039, India.
The efficient and sustainable remediation of contaminated water calls for catalytic systems that must clean broadly, endure widely, and last repeatedly. In this regard, we report the development of sulfonate-functionalized core-shell hydrogel beads embedded with synthesized gold nanoparticles (AuNPs) that exhibit intrinsic oxidase-like activity without requiring external light or chemical oxidants. The sulfonate ligands modulate the surface electronic environment of the AuNPs, facilitating singlet oxygen generation via a nonplasmonic, radiationless mechanism.
View Article and Find Full Text PDFMacromol Biosci
September 2025
IMEM-BRT Group, Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, Barcelona, Spain.
This study investigates a multifunctional hydrogel system integrating carboxymethyl cellulose (CMC) in a 3D-printed limonene (LIM) scaffold coated with poly(3,4-ethylenedioxythiophene): polystyrene sulfonate (PEDOT:PSS). The system allows to enhance wound healing, prevent infections, and monitor the healing progress. CMC is crosslinked with citric acid (CA) to form the hydrogel matrix (CMC-CA), while the 3D-printed limonene (LIM) scaffold is embedded within the hydrogel to provide mechanical support.
View Article and Find Full Text PDF