Themed collection Nanoscale 2022 Emerging Investigators
Nanoscale profiles: contributors to the Emerging Investigators 2022 issue
Our 2022 Emerging Investigators collection gathers some of the best research being conducted by nanoscientists in the early stages of their independent career. Congratulations to all of the researchers featured!
Correlating structure, morphology and properties of metal nanostructures by combining single-particle optical spectroscopy and electron microscopy
This Minireview focuses on recent advances in detailed structure–property correlations and light-induced morphological changes of individual metal nanostructures through correlated optical spectroscopy and electron microscopy.
Emerging low-molecular weight nucleopeptide-based hydrogels: state of the art, applications, challenges and perspectives
This minireview highlights the interests, high potential, applications and perspectives of the emerging low-molecular weight nucleopeptide-based hydrogels.
RNA cancer nanomedicine: nanotechnology-mediated RNA therapy
We review the recent progress in nanotechnology-mediated delivery of therapeutic RNAs that have been employed to evoke tumor suppressing responses for cancer therapy.
Three-dimensional artificial chirality towards low-cost and ultra-sensitive enantioselective sensing
This mini review summarizes the recent advances for practical enantioselective sensing platforms with regard to chiral metamaterials and their optical sensing methods.
Support effects of metal–organic frameworks in heterogeneous catalysis
This review summarizes current development of M/MOF catalysts, and especially focuses on the support effects of MOFs.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Overcoming barriers in non-viral gene delivery for neurological applications
Investigation of various strategies to overcome extracellular and intracellular barriers for improved gene delivery in neuronal applications utilizing non-viral vectors.
Controlling disorder in self-assembled colloidal monolayers via evaporative processes
Monolayers of assembled nano-objects with a controlled degree of disorder hold interest in many optical applications, including photovoltaics, light emission, sensing, and structural coloration.
Recent development of a magneto-optical nanoplatform for multimodality imaging of pancreatic ductal adenocarcinoma
A magneto-optical nanoplatform integrating near infrared fluorescence, photoacoustic, and magnetic resonance imaging shows great promise for the accurate diagnosis of pancreatic ductal adenocarcinoma.
Strategies for interface issues and challenges of neural electrodes
Examples of neural electrodes with different charge transfer mechanisms.
Mechanoresistive single-molecule junctions
Mechanoresistive molecular junctions are nanoelectronic devices which electrical properties are influenced by mechanical stress. This review presents the multiple ways in which such functionality is imparted and characterised.
Two-dimensional copper based colloidal nanocrystals: synthesis and applications
This review summarizes recent progress in the colloidal synthesis, growth mechanisms, properties, and applications of 2D copper-based nanostructures with tunable compositions, dimensions, and crystal phases.
Magnetogenetics: remote activation of cellular functions triggered by magnetic switches
Magnetogenetics: the use of magnetic fields along with magnetic actuators can be used to modulate biological functions in a non-invasive way, paving the way for the development of exciting tools useful in basic research and clinical applications.
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.
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.
An integrated microfluidic electrochemical assay for cervical cancer detection at point-of-care testing
IMEAC is an integrated microfluidic electrochemical assay for cervical cancer detection at point of-care testing.
Nanosegregation in arene-perfluoroarene π-systems for hybrid layered Dion–Jacobson perovskites
Arene–perfluoroarene moieties are used to assemble Dion-Jacobson perovskite phases, revealing nanosegregation and enhanced environmental stabilities relevant to their application.
Polarization-based colour tuning of mixed colloidal quantum-dot thin films using direct patterning
By patterning linear gratings with different periodicities and orientations onto a film of mixed-colour cQDs, polarization-based active colour tuning of the thin-film emission is demonstrated.
C60-β-cyclodextrin conjugates for enhanced nucleus delivery of doxorubicin
Fullerenol-cyclodextrin conjugate selectively delivers doxorubicin to the nucleus of HeLa cells.
Single-molecule conductance of double-stranded RNA oligonucleotides
The single-molecule conductance of double-stranded RNA oligonucleotides is reported. The electrical fingerprint contains biophysical information that is interpreted using Molecular Dynamics simulations.
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.
Peptide functionalized DNA hydrogel enhances neuroblastoma cell growth and differentiation
Designing programmable biomaterials that could act as extracellular matrices and permit functionalization is a current need for tissue engineering advancement.
Phase transition and nanomechanical properties of refractory high-entropy alloy thin films: effects of co-sputtering Mo and W on a TiZrHfNbTa system
Based on magnetron co-sputtering, Mo/W additions result in the phase transition of TiZrHfNbTa high-entropy alloy from nanocrystalline to amorphous structures, leading to an obvious increase in hardness with a slight increase in the elastic modulus.
The delicate balance of phase speciation in bimetallic nickel cobalt nanoparticles
Bimetallic NiCo nanoparticles crystallized in the fcc phase are formed using optimized synthetic parameters.
Optimizing cathodoluminescence microscopy of buried interfaces through nanoscale heterostructure design
Spatial resolution and brightness in cathodoluminescence can be tuned by nanoscale design of samples.
High-yield halide-assisted synthesis of metal–organic framework UiO-based nanocarriers
The synthesis of nanosized metal–organic frameworks (NMOFs) is requisite for their application as injectable drug delivery systems (DDSs) and other biorelevant purposes.
Tuning nanowire lasers via hybridization with two-dimensional materials
Hybrid structures composed of 1D nanowires and layered 2D materials are promising building blocks for advanced optoelectronic devices and they provide new knobs for the control of lasing at the nanoscale.
Fast and efficient electrochemical thinning of ultra-large supported and free-standing MoS2 layers on gold surfaces
The same electrochemical process drives the preparation of supported and free-standing molybdenum disulfide monolayers.
Mandelic acid appended chiral gels as efficient templates for multicolour circularly polarized luminescence
A host-guest approach is adopted for the generation of multicolor chiral luminescence from a hybrid nanocomposite comprising of mandelic acid-based chiral gels and achiral carnon nanodots.
Mapping the effects of physical and chemical reduction parameters on local atomic distributions within bimetallic nanoparticles
Chemical and physical reduction parameters can be used to tune the composition, morphology, and alloy homogeneity of mixed-metal AgAu nanoparticles.
Tailoring ZnO nanowire crystallinity and morphology for label-free capturing of extracellular vesicles
We identify the effects of crystallinity and morphology of zinc oxide nanowires grown hydrothermally with ammonia addition on their physicochemical properties for capturing extracellular vesicles.
A physical interpretation of coupling chiral metaatoms
The microscopic origins of chiroptical response in metasurfaces are studied based on temporal coupled-mode theory and quasinormal modes. Using a biorthogonal approach, the model identifies a critical coupling condition for unity circular dichroism.
Fast and recoverable NO2 detection achieved by assembling ZnO on Ti3C2Tx MXene nanosheets under UV illumination at room temperature
The excellent conductivity of Ti3C2Tx and the rich charge carriers of ZnO under UV illumination can endow the gas sensors with greatly enhanced performances in response/recovery speed, sensitivity and cycle stability toward NO2 at room temperature.
Triggering the nanophase separation of albumin through multivalent binding to glycogen for drug delivery in 2D and 3D multicellular constructs
Nanocomplexes of glycogen nanoparticles with serum albumin were formed by triggering the nanophase separation of albumin. The nanocomplexes enabled the delivery of chemotherapeutics in complex multicellular 3D tumour-like structures.
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.
Cerium oxide nanozyme attenuates periodontal bone destruction by inhibiting the ROS–NFκB pathway
A detailed anti-inflammatory mechanism study of CeO2 nanozymes with reactive oxygen species scavenging abilities toward periodontitis treatment advances future nanozyme-based clinical applications.
Noninvasive near-infrared light triggers the remote activation of thermo-responsive TRPV1 channels in neurons based on biodegradable/photothermal polymer micelles
We developed a novel biodegradable/photothermal polymer micelle-based remote-activation method for a temperature-sensitive TRPV1 ion channel. The developed polymer micelles can serve as a novel noninvasive remote-activation tool for neuronal cells.
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.