Themed collection Nanoscale 2022 Emerging Investigators
Material strategies for function enhancement in plasmonic architectures
Plasmonic materials are promising for applications in enhanced sensing, energy, and advanced optical communications.
Amplifying inorganic chirality using liquid crystals
We summarize the current progress of amplifying inorganic chirality using liquid crystals. Chiral interactions between inorganic components and liquid crystals, representative applications, and the perspectives of this field are presented.
Recent progress in polydiacetylene mechanochromism
This mini review summarizes recent progress in polydiacetylene (PDA) mechanochromism, with a special focus on the quantitative and nanoscopic data that have emerged in recent years.
Recent advances in flexible and wearable sensors for monitoring chemical molecules
This review focuses on the wearability of chemical sensors and analyzes pros and cons relating to practical wearable applications. We also discuss the current challenges and outlook relating to flexible and wearable chemical sensors.
Photocatalytic polymer nanomaterials for the production of high value compounds
Nanotechnology has provided a platform for producing new photocatalytic materials, where the reduction in length scales has been used to amplify the efficiency of these light active materials.
RNA Cancer Nanomedicine: Nanotechnology-mediated RNA Therapy
Circularly polarized luminescent porous crystalline nanomaterials
An overview of generation, regulation and amplification of circularly polarized luminescence (CPL) in porous crystalline nanomaterials by direct synthesis, chirality induction or adaption, and symmetry breaking pathways.
Pulmonary delivery of mucosal nanovaccines
Mucosal vaccines can elicit both systemic and mucosal immunity to treat/prevent local mucosal or distant or systemic immune diseases and infection.
Enrichment of high-purity large-diameter semiconducting single-walled carbon nanotubes
Recent progress on the enrichment of high-purity large-diameter semiconducting SWNTs and their application in optoelectronic devices are summarized.
Emerging dynamic memristors for neuromorphic reservoir computing
This work reviews the state-of-the-art physical reservoir computing systems based on dynamic memristors integrating with unique nonlinear dynamics and short-term memory behavior. The key characteristics, challenges and perspectives are also discussed.
Conductive metal and covalent organic frameworks for electrocatalysis: design principles, recent progress and perspective
A minireview covering the design principles, recent progress and perspective of conductive MOF/COF based electrocatalysts is made.
Effect of light intensity on solar-driven interfacial steam generation
We reviewed the recent progress on solar-driven interfacial steam generation under different optical intensities and provided energy and water management strategies to improve evaporation performance.
Molecular design of heterogeneous electrocatalysts using tannic acid-derived metal–phenolic networks
Recently emerged metal phenolic networks (MPNs) show promise as molecularly designable heterogeneous electrocatalysts for various electrochemical reactions owing to their unique features.
Artificial interphase engineering to stabilize aqueous zinc metal anodes
In this mini-review, the state-of-the-art knowledge on the rational artificial interphase engineering of zinc metal anodes for high performance aqueous zinc ion batteries are presented.
Recent advances in the heteroatom doping of perovskite oxides for efficient electrocatalytic reactions
The minireview summarizes the advances in the heteroatom doping of perovskite oxides towards efficient electrocatalytic reactions, based on the classification of different doping sites, A site, B site, O site and dual sites in ABO3 perovskite oxides.
Artificial intelligence-powered microfluidics for nanomedicine and materials synthesis
Artificial intelligence-powered microfluidics has greatly promoted the development of nanomedicine and material synthesis.
Encapsulation of lead halide perovskite nanocrystals (NCs) at the single-particle level: strategies and properties
In this minireview, single-particle-level coated APbX3 NCs are introduced, mainly including their preparations and properties.
Three-dimensional artificial chirality towards low-cost and ultra-sensitive enantioselective sensing
Spin selectivity in chiral metal–halide semiconductors
This minireview elaborately presents the spin selectivity of chiral metal–halide semiconductors in photonic/electronic processes, and their applications in optoelectronic/spintronic devices, with the structure–property relationship highlighted.
Virus-inspired nanosystems for drug delivery
Schematic illustration of virus-inspired nanosystems to overcome physiological barriers in drug delivery.
Nanomaterial catalysts for organic photoredox catalysis-mechanistic perspective
Photoredox organic transformation have been growing, and this perspective highlights recent advances in mechanistic understanding, providing strategies to construct high efficiency and low-cost photocatalytic systems.
Droplet-based nanogenerators for energy harvesting and self-powered sensing
An overview of the development of droplet-based nanogenerators: from droplet properties towards energy harvesting and self-powered sensors.
Emerging 2D materials for antimicrobial applications in the pre- and post-pandemic era
Infectious diseases caused by viral or bacterial pathogens are one of the most serious threats to humanity. 2D materials can efficiently favor antimicrobial activity and maintain a safer environment to protect people against these pathogens.
Rational design of metal oxide catalysts for electrocatalytic water splitting
The review introduces the mechanisms of heterogeneous hydrogen evolution (HER) and oxygen evolution reactions (OER), summarizes in-situ characterization techniques and surveys strategies to boost the activities of metal oxide electrocatalysts.
Two-dimensional materials for electrochemical CO2 reduction: materials, in situ/operando characterizations, and perspective
2D materials and in situ and operando characterization techniques for the development of next-generation CO2 conversion systems.
2D multiferroics achieve multiple functions and new mechanisms through magnetoelectric, piezoelectric, and magnetoelastic coupling phenomena, opening up new research avenues.
Precursor chemistry of metal nitride nanocrystals
We review the chemistry that leads or could lead to colloidal metal nitride nanocrystals, via solution-based methods.
Magnetogenetics: remote activation of cellular functions triggered by magnetic switches
Vacancy defect engineering of BiVO4 photoanodes for photoelectrochemical water splitting
Vacancy defect engineering of BiVO4 photoanodes including the generation of oxygen vacancies, vanadium vacancies, and bismuth vacancies can tune the electronic structure, promote charge separation, and increase surface photoreaction kinetics.
Deep X-ray lithography on “sol–gel” processed noble metal mesoarchitectured films
Noble metal coordination xerogel exhibit solubility switch when exposed to X-rays. The films can be used as recyclable negative tone resists for deep X-ray lithography that can be converted into metallic nanoarchitectured films.
Tuning the magnetic properties of NiPS3 through organic-ion intercalation
The intercalation of different organic cations in the layered antiferromagnet NiPS3 yields ferrimagnetic ordering with a molecule-dependent transition temperature. A successful intercalation is demonstrated for bulk crystals and exfoliated flakes.
Real-time imaging of metallic supraparticle assembly during nanoparticle synthesis
Liquid phase transmission electron microscopy reveals the interparticle interactions and growth mechanism for rapid supraparticle assembly during nanoparticle synthesis.
Templated synthesis enhances the cobalt adsorption capacity of a porous organic polymer
A templated synthetic approach to porous organic polymers, in which branched, rigid monomers are pre-assembled around a target ion before polymerization, can significantly enhance the ion adsorption capacity of the resulting polymer.
Red-emissive nanocrystals of Cs4MnxCd1−xSb2Cl12 layered perovskites
Cs4MnxCd1−xSb2Cl12 (0 ≤ x ≤ 1) has been prepared in the form of nanocrystals (NCs). The NCs showed a red emission with a photoluminescence quantum yield of 3.9% obtained after a post-synthesis treatment.
Green-to-UV photon upconversion enabled by new perovskite nanocrystal-transmitter-emitter combination
The first example of green (λ > 500 nm)-to-ultraviolet (λ < 400 nm) triplet–triplet annihilation-based photon upconversion sensitized by lead halide perovskite nanocrystals is achieved.
Morphological transitions in chemically fueled self-assembly
This work demonstrates the importance of considering the disassembly pathway when designing new chemically fueled self-assembling systems.
Well-defined Co9S8 cages enable the separation of photoexcited charges to promote visible-light CO2 reduction
Well-defined Co9S8 cages with high performance for boosting photo-induced charge separation and transfer are first exploited to promote visible-light CO2 reduction.
Unprecedented neptunyl(V) cation-directed structural variations in Np2Ox compounds
Global minimum searching on Np2Ox (x = 1–7) clusters and computational studies on their chemical bonding, suggests that the Np(V) could act as structural directing role, leading to a mixed-valent Np(III/V) in Np2O4 accessible.
Thermally induced silane dehydrocoupling on porous silicon nanoparticles for ultra-long-acting drug release
An ultra-long-acting drug-releasable (>2 weeks) nano-formulation based on porous silicon nanoparticles (pSiNPs) that are prepared using the thermally induced silane dehydrocoupling, an amphiphilic lipid-coating, and is disclosed for the first time.
Tuning the local electronic structure of a single-site Ni catalyst by co-doping a 3D graphene framework with B/N atoms toward enhanced CO2 electroreduction
This work reveals how the local electronic structures of single-site catalysts are tuned to enhance the performance for CO2 electroreduction.
Bulk and surface exsolution produces a variety of Fe-rich and Fe-depleted ellipsoidal nanostructures in La0.6Sr0.4FeO3 thin films
Bulk & surface exsolution of Fe produces various nanostructures in Lanthanum Strontium Ferrite (LSF) thin films.
Green ammonia synthesis using CeO2/RuO2 nanolayers on vertical graphene catalyst via electrochemical route in alkaline electrolyte
The electrochemical synthesis of ammonia using nanolayered catalyst of RuO2 and CeO2 on a 3D-Graphene support at an ambient condition, demonstrates excellent NRR activity with long-term stability.
Transient reshaping of intraband transitions by hot electrons
Hot electrons transiently redshift intraband transitions of colloidal quantum wells when electrons are excited above the band edge.
Dialysis-derived urchin-like supramolecular assembly of tannic acid and paclitaxel with high porosity
We report an unprecedented urchin-like microstructure of paclitaxel and tannic acid that showed high porosity derived by dialysis. The porosity was essential for rapid remodeling with serum proteins for high therapeutic efficacy.
Noninvasive Near-Infrared Light Triggers Remote Activation of Thermo-Responsive TRPV1 Channels in Neurons Based on Biodegradable/Photothermal Polymer Micelles
Cerium oxide nanozyme attenuates periodontal bone destruction by inhibiting ROS-NFκB pathway
Binder-Free mechanochemical metal-organic framework nanocrystal coatings
Improved zT in Nb5Ge3–GeTe thermoelectric nanocomposite
Doping high electrical conductivity Nb5Ge3 precipitates into GeTe results in nanoprecipitates phonon scattering, while retaining electrical mobility. As a result, thermoelectric zT of GeTe is drastically enhanced to 2.0 at 723 K.
Carrier dynamics at trench defects in InGaN/GaN quantum wells revealed by time-resolved cathodoluminescence
Time-resolved cathodoluminescence is an emerging tool to investigate carrier recombination mechanisms at defects in semiconductors – here applied to trench defects in InGaN quantum wells.
Enhanced air filtration performances by coating aramid nanofibres on a melt-blown nonwoven
The preparation cycle of ANF/DMSO is shortened by simply increasing the preparation temperature. The composite filter fabricated by coating ANFs on a melt-blown nonwoven shows excellent air filtration performances.
Rational design of walnut-like ZnO/Co3O4 porous nanospheres with substantially enhanced lithium storage performance
Rational fabrication and smart design of multi-component anode materials to achieve desirable reversible capacities and exceptional cyclability are significant for lithium-ion batteries (LIBs).
Alkyl selenol reactivity with common solvents and ligands: influences on phase control in nanocrystal synthesis
In a synthesis to Cu2−xSe, the selenium reagent undergoes complex chemistries with common ligands and solvents, which influences nanocrystal phase.
1D alignment of Co(II) metalated porphyrin–napthalimide based self-assembled nanowires for photocatalytic hydrogen evolution
Cobalt(II) metalated porphyrin–napthalimide acts as donor–acceptor motif, which undergoes self-assembly leading to well-aligned one-dimensional nanowires promotes as an efficient photocatalyst for hydrogen evolution.
Oxygen-induced degradation in AgBiS2 nanocrystal solar cells
The degradation of AgBiS2 nanocrystal solar cells upon exposure to oxygen is strongly impacted by the choice of extraction layers and proceeds via a decomposition of AgBiS2 into Ag2S and Bi2O3.
Electrochemical gelation of quantum dots using non-noble metal electrodes at high oxidation potentials
Relative to conventional chemical approaches, electrochemical assembly of metal chalcogenide nanoparticles enables the use of two additional levers for tuning the assembly process: electrode material and potential.
Improving the stability of plasmonic magnesium nanoparticles in aqueous media
Plasmonic Mg nanoparticles can be stabilised up to a few hours in aqueous suspensions by protecting them inside core–shell architectures, which are prepared by condensation of either polydopamine or sol–gel silica.
One stone two birds: a sinter-resistant TiO2 nanofiber-based unbroken mat enables PM capture and in situ elimination
Fragile TiO2 nanofibers was functionalized with good structural integrity, flexibility, and foldability, by depressing the sintering of nanocrystallites, enabling PM capture and in situ elimination via a “one-stone-two-birds” approach.
Construction of a hetero-epitaxial nanostructure at the interface of Li-rich cathode materials to boost their rate capability and cycling performances
A facile coating strategy is proposed to construct a hetero-epitaxial nanostructure at the interface of Li-rich cathode materials, and it effectively improves the rate capability and cycling performance of the cathode materials.
Minimized thermal expansion mismatch of cobalt-based perovskite air electrodes for solid oxide cells
The as-obtained R-BZCY-Cox air electrode shows a 7-fold enhancement in electrochemical performance with a negligible TEC mismatch of only ∼11.4%.
Surface engineered CoP/Co3O4 heterojunction for high-performance bi-functional water splitting electro-catalysis
The s-CoP/Co3O4 is employed as bi-functional catalysts towards HER and OER. A current density of 10 mA cm−2 can be achieved at an overpotential of 211 mV vs. RHE in OER and the overpotential is only 106 mV vs. RHE at a current density of −10 mA cm−2 in HER.
Janus silver/ternary silver halide nanostructures as plasmonic photocatalysts boost the conversion of CO2 to acetaldehyde
Janus Ag/AgClBr nanostructures were constructed using a facile method for the boosting conversion of CO2 to 10-electron reduction product CH3CHO.
First-principles calculations of strain engineering in NaYF4-based nanocrystals with hydroxyl impurities
The concentration of hydroxyl impurities in fluoride-based core-shell nanocrystals can be minimized by epitaxial growth of spatially compressed shells under fluoride-rich conditions.
pH-Dependent interaction mechanism of lignin nanofilms
The molecular interaction mechanism of lignin was demonstrated by measuring the adhesion forces using an SFA and monitoring adsorbed mass of lignin with QCM-D. Herein, five different types of self-assembled monolayers (SAMs) were utilized.
A buried glutamate in the cross-β core renders β-endorphin fibrils reversible
The pH-responsive disaggregation of β-endorphin amyloids. The experimentally determined β-endorphin fibril structure is stable at pH 5.5 or lower. At neutral pH, the fibril structure is destabilized by the progressive deprotonation of buried Glu8.
Effect of single electrons on the excited state dynamics of rod-shaped Au25 nanoclusters
A single electron can have a significant influence on the excited state dynamics of rod-shaped Au25 nanoclusters.
Coordination environment engineering on nickel single-atom catalysts for CO2 electroreduction
The correlation between the coordination environment and the activity/selectivity of B/C/N co-coordinated Ni single atom catalysts towards CO2 electroreduction was systematically studied by theory.
Marrying luminescent Au nanoclusters to TiO2 for visible-light-driven antibacterial application
Marrying highly luminescent Au nanoclusters (NCs) to TiO2 achieves long-lasting yet visible-light-driven antibacterial activity against both Gram-positive and Gram-negative bacteria.
Inversion symmetry broken in 2H phase vanadium-doped molybdenum disulfide
Mono-/bi-layer V-doped MoS2 were synthesized via CVD growth. The second harmonic generation (SHG) response in bilayer 2H and 3R phase V-doped MoS2 indicated the broken inversion symmetry regardless of stacking order and layer numbers.
Uncovering the encapsulation effect of reduced graphene oxide sheets on the hydrogen storage properties of palladium nanocubes
Pd nanocubes are constrained by rGO sheets to significantly change the hydrogen sorption behaviour, while showing a size dependence.
Observation of quantum-confined exciton states in monolayer WS2 quantum dots by ultrafast spectroscopy
Quantum-confined exciton states and corresponding depolarization processes in monolayer WS2 quantum dots are investigated, compared with those of WS2 nanosheets.
About this collection
Nanoscale is proud to present this themed issue highlighting 2022’s rising stars of nanoscience and nanotechnology research. This issue gathers the very best work from researchers in the early stages of their independent career.
Each contributor was recommended by experts in their fields for carrying out work with the potential to influence future directions in nanoscience and nanotechnology. Congratulations to all the featured researchers on their important work so far in the field.