ACS Applied Nano Materials

Abstract Carbon quantum dot (CQD)-modified carbon nitride nanocomposites have emerged as promising sunlight photocatalysts for wastewater remediation owing to their tunable electronic structures and efficient charge-transfer properties. Herein, CQD-modified g-C3N4 (N4Q) and g-C3N5 (N5Q) were synthesized via a hydrothermal route and systematically compared to elucidate the influence of the carbon …

Abstract Intracellular viscosity is a fundamental mechanical property that reflects the physiological and pathological state of cells and plays a critical role in regulating molecular transport and organelle dynamics. Despite its importance, quantitative and noninvasive measurement of cytoplasmic viscosity in living cells remains challenging due to limitations in existing techniques, including ph…

Abstract Cadmium (Cd2+), among the most hazardous heavy-metal pollutants, enters ecosystems through both natural processes and anthropogenic activities. This study developed an electrochemical sensor using a two-dimensional nanomaterialcomposite strategy, which synergistically integrates ion-imprinted poly(3,4-ethylenedioxythiophene) (IIP-PEDOT) with graphite carbon nitride (g-C3N4) nanomaterials…

Abstract The development of multifunctional catalysts with efficient charge-transfer characteristics is crucial for advancing photocatalytic wastewater remediation and electrochemical hydrogen production. In the present work, a Pt-decorated Carbon Quantum Dots (CQD)–TiO2–MXene (Pt/CTM) heterostructure was successfully synthesized through a combined hydrothermal and chemical reduction approach. Th…

Abstract Metal–organic frameworks (MOFs) are nanoporous materials with exceptional stability, tunability, and high surface area, making them remarkable candidates for heterogeneous catalysis. UiO-67, a zirconium-based MOF, has been shown to be a good host for catalytic reactions, but is limited by poor photoactivity. Doping UiO-67 with photoactive molecules, such as ruthenium and rhenium complexe…

Abstract This study addresses the efficient and safe purification of low-concentration atmospheric NO. A Yb/Er-codoped nanostructured BiOBr was synthesized via a solvothermal method, and a composite superhydrophobic coating (FSBE) was fabricated by a layer-by-layer spraying strategy using epoxy resin, nano-SiO2, and perfluoroalkyltrimethoxysilane, achieving integrated high photocatalytic activity…

Abstract Because of high defect density and good electrical conductance, nitrogen-incorporated reduced graphene oxides (NrGOs) are highly promising materials for energy storage, energy conversion, and electrochemical applications. Surface area modifications and controllable electrical conductivity coupled with micromesopore structures make these materials suitable for ion adsorption and transport…

Abstract Carbon dots are attractive lubricant nanoadditives because their nanoscale size and tunable surface chemistry allow them to interact with confined friction interfaces. However, achieving effective antiwear protection under high contact loads requires surface structures that can couple physical filling with interfacial film formation. Here, N, S, and P-modified carbon dots (NSP-CDs) were …

Abstract Real-time monitoring of toxic triethylamine (TEA) at room temperature remains a significant challenge for metal oxide chemiresistors due to their typically high-power consumption and thermal requirements. This work presents a highly responsive, visible-light-activated gas sensor based on ZnO nanoparticles (25.5 nm crystallites) functionalized with Cu-porphyrin (CuTPPCOOH). By leveraging …

Abstract With growing concern over greenhouse gas emissions, C5F10O/CO2 is a promising SF6 alternative, yet its decomposition under partial discharge produces harmful CF4, CO, and COF2, threatening equipment safety. Developing efficient sensing materials for these gases is crucial. In recent years, significant progress has been made in the field of nanomaterials for sensing applications. Here, we…

Abstract The rapid advancement of electronic information technology has intensified concerns regarding electromagnetic radiation pollution, thereby increasing the demand for lightweight, broadband, and effective microwave absorbers. In this study, polystyrene microspheres (PSM) were used as the core matrix, modified with polydopamine (PDA) on the surface, and subsequently self-assembled with MXen…

Abstract Chiral covalent organic frameworks (CCOFs) have emerged as a transformative platform for asymmetric catalysis, uniquely combining molecular-level stereocontrol with the practical advantages of heterogeneous materials. This review systematically examines the strategic design and synthesis of CCOFs through three primary approaches─direct synthesis, postsynthetic modification, and chiral in…

Abstract A dual-mode smart colorimetric and fluorometric aptasensor is reported for the sensitive and selective detection of gentamicin (GENTA) in milk and egg samples. Gold nanoparticles (AuNPs) and carbon quantum dots (CQDs) formed a fluorescence resonance energy transfer pair to develop a dual-mode aptasensor. The aptasensor utilized the distance-dependent color-changing properties of AuNPs, e…

Abstract We report a bottom-up strategy, termed nanoprecipitation-solvent neutralization, for the preparation of drug-loaded polymeric nanospheres and nanocapsules for pharmaceutical applications. The method is compatible with hydrolysis-sensitive drug molecules and accommodates pharmaceutically approved polymers and excipients that are water-insoluble across the entire pH range. In this approach…

Abstract The design of hybrid supercapacitors is fundamentally challenged by the mismatch in charge storage kinetics between Faradaic and capacitive electrodes, poor interfacial compatibility, and structural instability during long-term cycling. To address these issues, a hydrothermally synthesized 2H-1T WS2/MoO3/CNT nanocomposite was developed as an efficient electrode material by tailoring the …

Abstract Surface roughness and nanostructures of metal thin films play a major role in Surface-Enhanced Raman Scattering (SERS) study due to their intrinsic electromagnetic (EM) hot spots, multipolar resonance, and other factors. Here, we present a low-cost and scalable fabrication route for a flexible, nanoporous Au–Ag bimetallic thin film on a plastic substrate, providing a practical alternativ…

Abstract Dimensionally controlled fabrication of laser-induced graphene (LIG) electrodes on cellulose-rich waste substrates remains challenging because lateral heat spreading during CO2 laser processing can broaden electrode features and reduce device-to-device reproducibility. Here, we report a waste-derived nanocarbon electrode platform in which postconsumer multilayer Tetra Pak cartons act sim…

Abstract Nanocatalysts hold broad application prospects for photocatalytic hydrogen evolution. CdS is a visible-light-responsive photocatalyst for hydrogen evolution, but its efficiency is limited by fast electron–hole recombination and insufficient interfacial charge extraction at the nanoscale. Here, a nanoscale type-II BaTiO3/CdS (BTO/CdS) heterojunction was constructed through a chemical bath…

Abstract Selective separation of bioactive compounds such as ferulic acid (FA) from complex traditional Chinese medicine extracts remains challenging due to their low abundance and numerous interfering substances. Herein, a cationic polyaniline-functionalized cyclodextrin-based microporous organic network (β-CD-MON@2PANI) with a regulated nanoscale pore environment is constructed via a polycation…

Abstract The all-textile piezoelectric sensor, capable of achieving high-sensitivity pressure sensing while meeting the requirements of wearability, comfort, and structural flexibility, holds great significance for intelligent wearable motion monitoring. In this study, MXene was employed to induce the transition of polyacrylonitrile (PAN) molecular chains from a 31 helical conformation to a plana…