98%
921
2 minutes
20
Graphene has been covalently functionalized through a one-pot reductive pathway using graphite intercalation compounds (GICs), in particular KC , with three different orthogonally protected derivatives of 4-aminobenzylamine. This novel multifunctional platform exhibits excellent bulk functionalization homogeneity (H ) and degree of addition while preserving the chemical functionalities of the organic addends through different protecting groups, namely: tert-butyloxycarbonyl (Boc), benzyloxycarbonyl (Cbz) and phthalimide (Pht). We have employed (temperature-dependent) statistical Raman spectroscopy (SRS), X-ray photoelectron spectroscopy (XPS), magic angle spinning solid state C NMR (MAS-NMR), and a characterization tool consisting of thermogravimetric analysis coupled with gas chromatography and mass spectrometry (TG-GC-MS) to unambiguously demonstrate the covalent binding and the chemical nature of the different molecular linkers. This work paves the way for the development of smart graphene-based materials of great interest in biomedicine or electronics, to name a few, and will serve as a guide in the design of new 2D multifunctional materials.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1002/chem.201903165 | DOI Listing |
ACS Nano
September 2025
School of Nano-Tech and Nano Bionics, University of Science and Technology of China, Hefei 230000, China.
Structural colors offer distinct advantages over traditional chemical colors (such as pigments and dyes), including high saturation, resistance to fading, and environmental friendliness. However, unlike traditional dyes or pigments that allow for Structural colors offer distinct advantages over traditional chemical colors (such as pigments and dyes), including high saturation, resistance to fading, and environmental friendliness. However, unlike traditional dyes or pigments that allow for arbitrary color adjustments during the coloring process, current structural color surfaces lack flexibility in control, as their colors are difficult to reprocess or adjust once formed.
View Article and Find Full Text PDFMethods Cell Biol
September 2025
The HIT Center for Life Sciences, Harbin Institute of Technology, Harbin, P.R. China; Medical and Health Research Institute, Zhengzhou Research Institute of HIT, Zhengzhou, HA, P.R. China. Electronic address:
Amyotrophic lateral sclerosis (ALS) is a severe neurodegenerative disorder characterized by progressive degeneration of motor neurons, leading to muscle weakness, paralysis, and death. While there is a plethora of studies focusing on many aspects of ALS, the pathogenesis of this disease is not well understood, and effective treatments are scarce. Drosophila melanogaster is a powerful model organism for studying ALS due to its genetic tractability and its evolutionarily conserved cellular and molecular processes which are also shared between the fly and human.
View Article and Find Full Text PDFJ Eval Clin Pract
September 2025
Health Technology Assessment Unit, Acute and Hospital-Based Care Portfolio, Ontario Health, Toronto, Ontario, Canada.
Rationale: Systematic reviews are essential for evidence-based healthcare decision-making. While it is relatively straightforward to quantitatively assess random errors in systematic reviews, as these are typically reported in primary studies, the assessment of biases often remains narrative. Primary studies seldom provide quantitative estimates of biases and their uncertainties, resulting in systematic reviews rarely including such measurements.
View Article and Find Full Text PDFRev Cardiovasc Med
August 2025
Heart Rhythm Management Centre, Postgraduate Program in Cardiac Electrophysiology and Pacing, Universitair Ziekenhuis Brussel - Vrije Universiteit Brussel, European Reference Networks Guard-Heart, 1090 Brussels, Belgium.
Despite continued advancements in transcatheter aortic valve implantation (TAVI) techniques, the incidence of permanent pacemaker implantation (PPI) remains substantial. Established predictors of PPI include advanced age, pre-existing electrocardiographic conduction abnormalities, prosthetic valve type, implantation depth, and anatomical parameters, such as membranous septum length, which are currently under active investigation. In routine clinical practice, the management strategy often involves the temporary placement of a transvenous pacemaker lead, followed by a period of observation.
View Article and Find Full Text PDFOrg Lett
September 2025
Faculty of Arts and Sciences, Beijing Normal University, Zhuhai 519085, China.
Polycyclic indolines are pervasive in a diverse array of biologically active molecules owing to their appealing physiological contributions. Herein, we report a straightforward dearomatization approach that employs a photoredox catalyst in combination with an inexpensive reductant to couple indole derivatives with secondary amines. This dearomative cycloaddition exhibits exceptional diastereoselectivity and delivers highly strained indolines fused with three-dimensional polycyclic scaffolds featuring a bicyclo[3.
View Article and Find Full Text PDF