Volume 14 Issue 8, August 2019

Nanoparticles designed to harness transcytosis achieve deeper tumour penetration.

The combination of a nanopore and an atomic force microscope allows stochastic sensing of secreted molecules and the activity of ion channels in arbitrary locations both inside and outside of a cell.

Three-dimensional nanowire transistors with curvilinear tips record intracellular signals from neurons.

Gate-based reflectometry enables single-shot spin readout in double quantum dots. This can help to reduce the number of gates necessary to operate a spin qubit and the per qubit device footprint, while allowing fast measurement — important characteristics for scalable quantum computing architectures.

Gate reflectometry on an ancillary dot coupled to an electron reservoir is used to read the spin of a qubit in a CMOS device in a single shot with an average fidelity above 98% within 0.5 ms.

The spin state of electrons in a double quantum dot in silicon is read in a single shot with 98% average fidelity within 6 μs by means of an on-chip superconducting resonator connected to two of the gates defining the double dot structure.

Random sequences of unitary gate operations on an exchange-only qubit encoded in three physical electron qubits are performed using only voltage pulses and exhibit an average total error of 0.35%, where half of the error originates from leakage out of the computational subspace caused by interactions with substrate nuclear spins.

An enhancement of 28.5 times beyond the blackbody radiation limit is demonstrated between two plates 110 nm apart in a chip-scale device.

Colossal magneto-optical activity on Landau levels in the mid-infrared and terahertz ranges is observed in high-mobility encapsulated graphene.

The combination of two-photon lithography and high-temperature pyrolysis is used to create micro-sized pyrolytic carbon with a compressive strength of 9.79 GPa cm³ g⁻¹. This enables rubber-like behaviour in micropillars, which can sustain compressive strain up to 50%.

The integration of a TMDC monolayer into a high-Q microcavity enables the observation of optical valley Hall effect.

An optoelectronic resistive switching memory synaptic device enables the realization of an efficient neuromorphic visual system exhibiting non-volatile optical resistive switching and light-tunable synaptic behaviours.

Scalable ultrasmall U-shaped nanowire FET probe arrays enable recording of full amplitude intracellular action potentials from primary neurons and other electrogenic cells.

Nanopore AFM is used for the stochastic sensing of secreted molecules and the activity of ion channels in arbitrary locations both inside and outside a cell.

A zwitterionic camptothecin–polymer conjugate that is enzymatically transformed in a cationic molecule at the tumour periphery penetrates deep into tumours via caveolae-mediated endocytosis and transcytosis, resulting in high anticancer efficiency in vivo.