- Vapor-printed polymer electrodes for long-term, on-demand health monitoring
Vapor printing electrodes on seedlings allows on-demand health monitoring of growing plants using bioimpedance spectroscopy.
- Propane oxidative dehydrogenation over highly selective hexagonal boron nitride catalysts: The role of oxidative coupling of methyl
Oxidative coupling of methyl increases C2 formation in propane oxidative dehydrogenation on hexagonal boron nitride.
- Gate-controlled VO2 phase transition for high-performance smart windows
A voltage-controlled VO2 smart window with excellent visible transmittance and infrared modulation efficiency is achieved.
- Escaping undesired gas-phase chemistry: Microwave-driven selectivity enhancement in heterogeneous catalytic reactors
Direct catalyst heating by microwaves reduces the impact of secondary homogeneous reactions occurring in the gas phase.
- Bioinspired mechanical device generates plasma in water via cavitation
Engineering the weapon of the ocean’s loudest snapper: 3D-printed shrimp claw efficiently produces shock waves and plasmas.
- Composite lithium electrode with mesoscale skeleton via simple mechanical deformation
By a simple but effective physical method, lithium can be wrapped inside a polymer matrix, creating a 3D composite electrode.
- Sensitivity of the superconducting state in thin films
An unexpected sensitivity of thin-film superconductors to perturbation explains observations of a metallic state in such films.
- Wigner solid pinning modes tuned by fractional quantum Hall states of a nearby layer
Pinning modes of a Wigner solid show remarkably small screening by a fractional quantum Hall liquid in close proximity.
- Conformational landscape alternations promote oncogenic activities of Ras-related C3 botulinum toxin substrate 1 as revealed by NMR
We demonstrate that the alternation of conformational equilibrium is a primary mechanism underlying oncogenic activities of Rac1.
- Agricultural lime disturbs natural strontium isotope variations: Implications for provenance and migration studies
Agricultural liming severely affects the use of strontium isotopes in prehistoric provenance and migration studies.
- A natural experiment reveals the impact of hydroelectric dams on the estuaries of tropical rivers
Comparison of free versus dammed tropical rivers reveals sediment trapping in dams has devastating consequences for estuaries.
- Cellular microRNA detection with miRacles: microRNA- activated conditional looping of engineered switches
A DNA nanotechnology approach enables label-free and unamplified detection of cellular microRNAs using gel electrophoresis.
- Atmospheric forcing of rapid marine-terminating glacier retreat in the Canadian Arctic Archipelago
Marine-terminating glaciers in the Canadian Arctic Archipelago have retreated in response to atmospheric, not oceanic, warming.
- Bach1 regulates self-renewal and impedes mesendodermal differentiation of human embryonic stem cells
Bach1 is a key determinant of pluripotency, self-renewal, and cell fate determination in human embryonic stem cells.
About The Cover
ONLINE COVER Real-time processing and manipulation of biological signals requires bioelectronic devices with integrated components capable of signal amplification, processing, and stimulation; Transistors form the backbone of such circuits. As represented on the March cover, Spyropoulos et al. have introduced an internal-ion gated organic electrochemical transistor (IGT) that uses contained mobile ions within the conducting polymer channel to permit both volumetric capacitance and shortened ionic transit time. The IGT has high transconductance, high speed, and can be independently gated to create scalable conformable integrated circuits. The authors demonstrate the ability of the IGT to provide a miniaturized, comfortable interface with human skin, using local amplification to record high quality brain neurophysiological activity. The IGT is an effective transistor architecture for enabling integrated, real-time sensing and stimulation of signals from living organisms. The cover image highlights the conformability and biocompatibility of this transistor architecture and materials by demonstrating IGT-based digital logic gates conforming to the surface of orchid petals. Scale bar, 10 mm. [CREDIT: GEORGE SPYROPOULOS, PHD/COLUMBIA UNIVERSITY]