Two zinc phthalocyanines (ZnPcs) have been equipped with Newkome-type dendritic branches of increasing size and number of terminal carboxylate functional groups. The negatively charged carboxylates render these polyelectrolytes soluble in polar media such as methanol or buffered water. Sonication of the ZnPcs with graphene allowed for pronounced non-covalent binding of the ZnPc moieties on the graphene surface. These hybrid systems were fully characterized via UV/Vis, AFM, TEM, Raman and transient absorption spectroscopy, yielding insights into the electron donating nature of the novel phthalocyanine structures.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/chem.201803596 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Modulation in the charge transfer characteristics of flexible bis-benzimidazole probes: independent sensing mechanisms for Hg and F.
Dalton Trans
January 2025
Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad, 500078, India.
Flexible bis-benzimidazole-based V-shaped amphiphilic probes (1 and 2) that form a fluorescent nanoscopic assembly in aqueous media have been designed. The ion-binding properties of compound 1 are investigated in both polar protic (water) and aprotic (acetonitrile) solvents. In acetonitrile, the compound shows a distinct chromogenic response towards Hg (LOD: 8.
View Article and Find Full Text PDFEvaluation of Cartilage-Like Matrix Formation in a Nucleus Pulposus-Derived Cartilage Analog Scaffold.
J Biomed Mater Res B Appl Biomater
January 2025
The Laboratory of Orthopaedic Tissue Regeneration & Orthobiologics, Department of Bioengineering, Clemson University, Clemson, South Carolina, USA.
The formation of fibrocartilage in microfracture (MFX) severely limits its long-term outlook. There is consensus in the scientific community that the placement of an appropriate scaffold in the MFX defect site can promote hyaline cartilage formation and improve therapeutic benefit. Accordingly, in this work, a novel natural biomaterial-the cartilage analog (CA)-which met criteria favorable for chondrogenesis, was evaluated in vitro to determine its candidacy as a potential MFX scaffold.
View Article and Find Full Text PDFProbing the Design Rules for Optimizing Electron Spin Relaxation in Densely Packed Triplet Media for Quantum Applications.
ACS Mater Lett
January 2025
Department of Materials and London Centre for Nanotechnology, Imperial College London, South Kensington Campus, Exhibition Road, SW7 2AZ London, United Kingdom.
Quantum technologies using electron spins have the advantage of employing chemical qubit media with tunable properties. The principal objective of material engineers is to enhance photoexcited spin yields and quantum spin relaxation. In this study, we demonstrate a facile synthetic approach to control spin properties in charge-transfer cocrystals consisting of 1,2,4,5-tetracyanobenzene (TCNB) and acetylated anthracene.
View Article and Find Full Text PDFBarriers and facilitators for the implementation of delayed-prescription of antibiotics in family medicine: a qualitative study.
BMC Health Serv Res
January 2025
Faculty of Communication, Culture and Society, Università Della Svizzera Italiana, Lugano, Switzerland.
Background: Delayed prescription is a strategy used in various countries to reduce antibiotic overuse and contend the effects of antibiotic resistance; however this practice is not yet used in Switzerland. The present qualitative study was thus conducted to investigate Swiss patients' attitudes towards the possible implementation of delayed prescription.
Method: Five focus groups with the general population based on a fixed script of questions to elicit opinions on delayed prescription.
Synergistic Chloroform-Methanol Binary Solvent Mixture Is Inherently Spatially and Dynamically Heterogeneous.
J Phys Chem B
January 2025
Centre for Lasers & Photonics, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India.
Nonideality in a binary solvent mixture is manifested through anomalies in various physical properties like viscosity, dielectric constant, polarity, freezing point, boiling point, and so forth. Sometimes, such anomalies become much more prominent, leading to a synergistic behavior, where the physical property of the mixture is way different from its bulk counterparts. Various alcohols/chlorinated methane binary solvent mixtures show such a synergistic behavior.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!