Themed collection Recent Open Access Articles
Recent development of end-of-life strategies for plastic in industry and academia: bridging their gap for future deployment
Bridging the gap between academia and industry in plastic recycling will accelerate innovation and deployment toward solving the global challenge of plastic waste management and establishing net zero carbon society.
Ionic and electronic energy diagrams for hybrid perovskite solar cells
Generalized energy diagrams facilitate the understanding of the ionic and electronic charge carrier equilibrium in the bulk and at interfaces of devices based on mixed conductors, such as hybrid perovskite solar cells.
Conductive polymer based hydrogels and their application in wearable sensors: a review
Hydrogel sensors have received massive attentions for wearable devices, recent advances in the fabrication and network structure of conductive polymer hydrogels are summarized, and their application in the field of wearable sensors is also discussed.
Nitroimino as an energetic group in designing energetic materials for practical use, a tautomerism from nitroamino
Hydrogen transfer from nitroamino to nitroimino promotes density, energy and safety of energetic materials suggesting excellent application prospects in designing next generation high energy density materials.
Interface-related phenomena in epitaxial complex oxide ferroics across different thin film platforms: opportunities and challenges
This review focuses on recent progress, current challenges and perspectives in interface-related phenomena of complex oxide ferroic thin films for electronics and energy applications.
Preparation, properties and applications of two-dimensional superlattices
This work centers the existing 2D superlattices (2DSs), reviewing the component (CSs), strain-induced (SSs) and moiré superlattices (MSs), respectively. We focus on their preparation, properties, and state-of-the-art applications of related devices.
Post-polymerisation approaches for the rapid modification of conjugated polymer properties
We summarise chemical approaches to modify the properties of conjugated polymers by post-polymerisation functionalisation directly on the backbone.
Two-photon absorption in halide perovskites and their applications
This review will help readers to have a comprehensive and in-depth understanding of the research field of two-photon absorption of halide perovskites from microscopic mechanisms to applications.
Addressing a future pandemic: how can non-biological complex drugs prepare us for antimicrobial resistance threats?
Non-biological complex drugs (NBCDs) are an emerging class of therapeutics that show multi-mechanistic antimicrobial activity and hold great promise as next generation antimicrobial agents.
Practical considerations in the design and use of porous liquids
The possibility of creating well-controlled empty space within liquids is conceptually intriguing, and from an application perspective, full of potential.
Three interfaces of the dental implant system and their clinical effects on hard and soft tissues
Comprehension of bone–implant, gingiva–abutment and implant–abutment interfaces is necessary in material development. Mechanical complications of the implant–abutment interface provoke biologic complications of the other two interfaces.
Chemically modified carbon nanostructures and 2D nanomaterials for fabrics performing under operational tension and extreme environmental conditions
Textile fabric fibers meet functionalized carbon nanostructures and 2D nanomaterials, enabling the fabrication of novel fabrics with advanced qualities against operational limitations and extreme environmental conditions.
Non-flammable liquid electrolytes for safe batteries
This review summarizes eight different strategies to formulate non-flammable liquid electrolytes to improve safety of alkali-metal-ion batteries such as lithium-ion, sodium-ion and potassium-ion batteries.
Heparanized chitosans: towards the third generation of chitinous biomaterials
Sulfation of chitosan makes this polymer a closer mimic of heparins and heparan sulfates, giving rise to the so called heparanized chitosan, that exert their biological activities through their capacity to interact with a range of biological targets.
Redox-active ions unlock substitutional doping in halide perovskites
Electrical doping of metal halide perovskites (MPHs) is a key step towards the use of this efficient and cost-effective semiconductor class in modern electronics.
Puncture-resistant self-healing polymers with multi-cycle adhesion and rapid healability
Tuning the chemical and physical crosslinks of poly(dimethyl siloxane)-based elastomers enables significantly enhanced puncture-resistant property with rapid self-healing capability.
Abnormal in-plane epitaxy and formation mechanism of vertically aligned Au nanopillars in self-assembled CeO2–Au metamaterial systems
Metamaterials present great potential in the applications of solar cells and nanophotonics, such as super lenses and other meta devices, owing to their superior optical properties.
Flexible triboelectric nanogenerators using transparent copper nanowire electrodes: energy harvesting, sensing human activities and material recognition
A high performance flexible triboelectric nanogenerator using oxidation resistant pure copper nanowire electrodes.
Switching magnetic strip orientation using electric fields
The ordered magnetic strip domains in Ni films are switched between the y- and x-axes driven by electric-field due to electric-field-modulated in-plane magnetic anisotropies via strain-mediated magnetoelectric coupling.
Frontally polymerized foams: thermodynamic and kinetical aspects of front hindrance by particles
Reduced reaction enthalpy due to particles’ non-reactive volume is balanced by lower heat capacity. Front propagation is hindered by slowed curing kinetics.
Harnessing cavity dissipation for enhanced sound absorption in Helmholtz resonance metamaterials
Drastically enhanced sound absorption can be achieved in Helmholtz resonators by simply reshaping the cavity and bringing the cavity walls close to the pore.
Anomalously abrupt switching of wurtzite-structured ferroelectrics: simultaneous non-linear nucleation and growth model
Anomalously abrupt nucleation and growth kinetics in polarization switching of wurtzite ferroelectrics are demonstrated. The anomaly inspires an extension of the traditional model to a regime that simultaneous non-linear nucleation and growth occur.
Room-temperature stacking disorder in layered covalent-organic frameworks from machine-learning force fields
Large-scale computer simulations of layered covalent-organic frameworks reveal temporal and spatial fluctuations that can be described as zigzag disorder.
Enhanced thermal stability by short-range ordered ferroelectricity in K0.5Na0.5NbO3-based piezoelectric oxides
The thermal stability of piezoelectricity in lead-free oxides is enhanced up to 300 °C with little loss of 6%. This record-value is achieved by a synergistic effect of shortening the polar ordering range and pinning the polar state in fine-grained oxides.
The magnetopyroelectric effect: heat-mediated magnetoelectricity in magnetic nanoparticle-ferroelectric polymer composites
A novel approach to magnetoelectricity: the magnetopyroelectric effect enables heat-mediated magnetoelectricity through the combination of magnetic particle heating and pyroelectricity.
Direct ink writing of PEDOT eutectogels as substrate-free dry electrodes for electromyography
Deep Eutectic Solvents (DES) and PEDOT:PSS have been combined to create a superior class of supramolecular and conductive ionic-electronic material that present attractive application in the field of bioelectronics.
A cold-responsive liquid crystal elastomer provides visual signals for monitoring a critical temperature decrease
A new generation of critical temperature indicators is developed for monitoring temperature decrease and providing irreversible visual signals. This is realized by using a switchable permeable–impermeable gold-liquid crystal elastomer membrane.
Discovery of a metastable van der Waals semiconductor via polymorphic crystallization of an amorphous film
Here, we report on the growth of GeTe2 thin films, a metastable phase. The GeTe2 film was found to be a semiconductor with a layered structure.
A highly sensitive friction-imaging device based on cascading stimuli responsiveness
Weak friction forces in the range of 0.006–0.080 N locally applied on mm-to-cm scales are visualized and colorimetrically quantified by the cascading responses using a device combining a stimuli responsive capsule, a conjugated polymer, and a substrate.
PolySMart: a general coarse-grained molecular dynamics polymerization scheme
PolySMart enables modeling of real-size (linear, branched and network) polymers through mimicking a great variety of chemistry. It unlocks simulation of co-occurring polymerization reactions under non-stoichiometric conditions.
Competition of polar and antipolar states hidden behind a variety of polarization switching modes in hydrogen-bonded molecular chains
The competition between polar and antipolar states causes the ferroelectric/antiferroelectric hybrid-like dielectric behaviors, whereas all the antipolar degenerate ground states cause distinct situations, which have been overlooked to date.
On the mechanistic complexity of oxygen evolution: potential-dependent switching of the mechanism at the volcano apex
The volcano plot for oxygen evolution, consisting of a plethora of different reaction mechanisms, reveals mechanistic changes in dependence of the descriptor (ΔG1) and potential-dependent switching of the preferred pathway at the volcano apex.
Angle-independent solar radiation capture by 3D printed lattice structures for efficient photoelectrochemical water splitting
Illustration of improved solar absorption capabilities of transparent 3D lattice structured electrodes compared to conventional flatbed electrodes for photoelectrochemical water electrolysis.
Crystal regeneration – a unique growth phenomenon observed in organic crystals post breakage
Diagram depicting the regeneration phenomenon in a paracetamol crystal post breakage along its cleavage plane.
From optical pumping to electrical pumping: the threshold overestimation in metal halide perovskites
Estimation of the electrically pumped perovskite lasing threshold carrier density from conventional optical pumping is significantly overestimated due to the slow hot carrier cooling process.
MOF/polymer hybrids through in situ free radical polymerization in metal-organic frameworks
A simple yet powerful strategy of carrying out free radical polymerization of methacrylate monomers using a MOF-based initiator. The obtained composites maintain high catalytic activity towards a chemical warfare agent (CWA) simulant.
Capsule self-oscillating gels showing cell-like nonthermal membrane/shape fluctuations
Here, we showcase millimeter-sized self-oscillating gels featuring cell-like membrane/surface fluctuations. The cell-like fluctuation is only driven by nonthermal contributions; a propagating chemical wave of a Belousov–Zhabotinsky reaction.
Dual redox-active porous polyimides as high performance and versatile electrode material for next-generation batteries
Design of dual redox-active porous polymers towards high-energy density and performance organic electrode materials for lithium metal battery and symmetric all-organic battery applications.
Fluorescence anisotropy using highly polarized emitting dyes confined inside BNNTs
Fluorescence anisotropy from 6T organic emitters aligned inside boron nitride nanotubes, themselves aligned in a polymeric matrix.
Recyclable thermosets based on modified epoxy-amine network polymers
A simple, single stage process is reported for the creation of a recyclable thermoset material from readily available epoxy resins and aliphatic amines, crosslinked with diboronic esters.
Passive climate regulation with transpiring wood for buildings with increased energy efficiency
The transpiring wood is able to self-regulate indoor climate resulting in improved living comfort and substantial energy savings. The material sources and the fabrication process of transpiring wood also meet sustainability criteria.
Frequency-dependent stimulated and post-stimulated voltage control of magnetism in transition metal nitrides: towards brain-inspired magneto-ionics
A voltage-controllable N ion accumulation effect at the outer surface of CoN films, enabling ‘post-stimulated’ learning or forgetting under deep sleep (once voltage stimuli are off), is demonstrated, triggering the development of synapse emulation.
Elucidating the role of multivalency, shape, size and functional group density on antibacterial activity of diversified supramolecular nanostructures enabled by templated assembly
Supramolecular cationic nanomaterials of diverse nanostructure prepared by templated assembly. Size, shape and cationic group density of the nanomaterials play an important role in antibacterial activity.
Multifunctional sound-absorbing and mechanical metamaterials via a decoupled mechanism design approach
We report a new paradigm, via a decoupled approach, in the design of acousto-mechanical multifunctional metamaterials.
Multi-target cell therapy using a magnetoelectric microscale biorobot for targeted delivery and selective differentiation of SH-SY5Y cells via magnetically driven cell stamping
A magnetoelectric biorobot enables precise cell transportation and delivery to multiple target areas via magnetically assisted stamping and allows for wireless magnetoelectric electrostimulation and differentiation of cells after their deployment.
Ultra-stable self-standing Au nanowires/TiO2 nanoporous membrane system for high-performance photoelectrochemical water splitting cells
Here we introduce for the first time a synthesis method of a core–shell photoanode composed of nanostructured self-standing titania nanotubes filled with Au nanowires. Photoanode shows high photon to current efficiency of 35% and incredible stability.
Grain engineering for improved charge carrier transport in two-dimensional lead-free perovskite field-effect transistors
Controlling crystal growth and reducing the number of grain boundaries are crucial to maximize the charge carrier transport in organic–inorganic perovskite field-effect transistors (FETs).
Polymer-induced biofilms for enhanced biocatalysis
Here, we show how synthetic polymers, prepared by a combination of controlled radical polymerization and in-situ screening, can be used to address a biological challenge – how to improve biofilm formation – to provide solutions to a field – biocatalysis – of industrial and societal relevance.
From binary AB to ternary ABC supraparticles
Formation of partially covered binary AB and ternary ABC supraparticles.
Control of up-to-down/down-to-up light-induced ferroelectric polarization reversal
Control of the final state of polarization switched by illumination is achieved in BaTiO3 films by the manipulation of the internal electric fields by using suitable bottom electrodes.
The impacts of molecular adsorption on antiferromagnetic MnPS3 monolayers: enhanced magnetic anisotropy and intralayer Dzyaloshinskii–Moriya interaction
In two-dimensional (2D) magnetic systems, significant magnetic anisotropy is required to protect magnetic ordering against thermal fluctuation.
Double-type-I charge-injection heterostructure for quantum-dot light-emitting diodes
Enforcing balanced electron–hole injection into the emitter layer of quantum-dot light-emitting diodes through a double-type-I heterostructure using polymer semiconductors maximizes the quantum efficiency over a wide current density range.
Strontium-deficient SrxCoO2–CoO2 nanotubes as a high ampacity and high conductivity material
Misfit SrxCoO2–CoO2 nanotubes are produced in high yields by hydrothermal conversion of Sr6Co5O15 crystals. The nanotubes show high conductivity, high ampacity and high breakdown power, which are highest among regularly used interconnect materials.
Photomemristive sensing via charge storage in 2D carbon nitrides
We present a photomemristive sensing concept based on light-induced charge storage in the 2D carbon nitride K-PHI. Our design enables memory sensing with tuneable dynamic concentration ranges, combined with diverse operation and readout modes.
Hybrid fabrication of multimodal intracranial implants for electrophysiology and local drug delivery
New fabrication approaches for mechanically flexible implants hold the key to advancing the applications of neuroengineering in fundamental neuroscience and clinic.
Multi-compartment supracapsules made from nano-containers towards programmable release
We fabricate supracapsules, i.e. multi-compartment suprastructures formed by nanocapsules via droplet-templated assembly. Supracapsules not only retain the functions of the individual nanocapsules, but also allow programming the release of cargoes.
Blacklight sintering of ceramics
Illumination with photon energy above the band gap enables super-fast sintering of ceramics on-the-spot. This scalable container- and contactless process opens new design options and boosts flexibility while offering outstanding energy efficiency.
Effect of electronic doping and traps on carrier dynamics in tin halide perovskites
Interplay of radiative and non-radiative recombination processes in tin halide perovskites as a result of doping, oxidation and defects.
Elastomeric microwell-based triboelectric nanogenerators by in situ simultaneous transfer-printing
An ultrastretchable triboelectric nanogenerator is developed by simultaneous transfer printing. The nanogenerator demonstrates all-in-one, self-powered touch, motion and force sensing that can function as artificial skin for soft robotic components.
Pickering emulgels reinforced with host–guest supramolecular inclusion complexes for high fidelity direct ink writing
Direct ink writing (DIW) of Pickering emulsions offers great potential for constructing on-demand objects.
Biohybrid plants with electronic roots via in vivo polymerization of conjugated oligomers
Conjugated oligomers polymerize in vivo on the root system of intact plants forming an extended network of tissue integrated conductors while the plants continue to grow and develop. The conducting roots are used to store energy in the plant.
van der Waals solid solution crystals for highly efficient in-air photon upconversion under subsolar irradiance
The concept of van der Waals solid solutions has been demonstrated to yield photon upconversion (UC) organic crystals with extraordinary performance, opening a domain of versatile dispersion-force-based systems in the quest for superior UC solids.
Exploring and expanding the Fe-terephthalate metal–organic framework phase space by coordination and oxidation modulation
Modulated self-assembly of Fe-terephthalate metal–organic frameworks allows fine control over phase formation, offers insight into kinetic and thermodynamic landscapes, and the discovery of novel materials in an already well-studied complex system.
Freeform direct laser writing of versatile topological 3D scaffolds enabled by intrinsic support hydrogel
By combining a photocurable and a thermogelling hydrogel, it is possible to perform 3D freeform structuring via two-photon-polymerization and to manufacture concatenated parts without additional support structures.
Colossal expansion and fast motion in spin-crossover@polymer actuators
Bilayer spin-crossover nanocomposites show robust and controllable actuation cycles upon an electrical stimulus. The anisotropic shape of the particle and the mechanical coupling with the matrix can intensify the work output of the actuators.
Charge trapping with α-Fe2O3 nanoparticles accompanied by human hair towards an enriched triboelectric series and a sustainable circular bioeconomy
The PDMS@α-Fe2O3 NP film and human hair-based high performance TENG harvests mechanical energy while expanding waste hair utilization, initiating a rising approach toward the circular bio economy that will play a key role in avoiding climate crisis.
Light-controlled versatile manipulation of liquid metal droplets: a gateway to future liquid robots
A light-controlled method for the versatile manipulation of liquid metal droplets is introduced. This approach shows the ability of inducing concurrent motion of multiple liquid metal droplets using infrared light without complex and bulky systems.
Aged layered double hydroxide nanosheet–polyvinyl alcohol dispersions for enhanced gas barrier coating performance
The oxygen transmission rate of a PET coated film showed a 37-fold decrease using a dispersion of LDH nanosheets in polyvinyl alcohol that was prior aged for 8 weeks compared to the film coated with the equivalent freshly prepared LDH/PVA dispersion.
Boosting nanomedicine performance by conditioning macrophages with methyl palmitate nanoparticles
Methyl Palmitate Nanoparticles (MPN) boost the tumor accumulation and chemotherapeutic efficacy of nanomedicines by transiently and reversibly inhibiting the phagocytic properties of tissue-resident macrophages.
Hidden spontaneous polarisation in the chalcohalide photovoltaic absorber Sn2SbS2I3
We reveal spontaneous symmetry breaking in an emerging class of mixed-metal chalcohalides, yielding strong lattice polarisation which could aid electron–hole separation in solar photovoltaics.