Author Correction: Plasmon-induced trap filling at grain boundaries in perovskite solar cells

A massive crater known as the “mouth to hell” began opening in the 1960s. Now, over 60 years later, the crater continues to grow, swallowing everything in its path. The most worrying part, though, is that scientists have no idea how to stop it. Russia’s “mouth to hell”...

We are providing an unedited version of this manuscript to give early access to its findings. Before final publication, the manuscript will undergo further editing. Please note there may be errors present which affect the content, and all legal disclaimers apply. Understanding the nanoscopic chemical and structural changes that drive...

Correction to: Scientific Data https://doi.org/10.1038/s41597-022-01312-7, published online 10 May 2022. In this article the funding information relating to support from Coordenação de Aperfeiçoamento de Pessoal de NÃvel Superior - Brasil (CAPES) - Finance Code 001 was omitted. The original article has been corrected.

Photoelectrochemical (PEC) devices have been developed for direct solar fuel production but the limited stability of submerged light absorbers can hamper their commercial prospects.1,2 Here, we demonstrate photocathodes with an operational H2 evolution activity over weeks, by integrating a BiOI light absorber into a robust, oxide-based architecture with a graphite paste conductive encapsulant. In this case, the activity towards proton and CO2 reduction is mainly limited by catalyst degradation. We also introduce multiple-pixel devices as an innovative design principle for PEC systems, displaying superior photocurrents, onset biases and stability over corresponding conventional single-pixel devices. Accordingly, PEC tandem devices comprising multiple-pixel BiOI photocathodes and BiVO4 photoanodes can sustain bias-free water splitting for 240"‰h, while devices with a Cu92In8 alloy catalyst demonstrate unassisted syngas production from CO2.

Correction to: Neuropsychopharmacology https://doi.org/10.1038/s41386-022-01312-6, published online 27 April 2022. In the sentence beginning "Behavior on Go and No-Go..." and onward, the value] "p" should have read "F". The original article has been corrected. Author information. Author notes. Laura L. Grima. Present address: Janelia Research Campus, Howard Hughes...

People with less-severe Ebola virus disease may go undiagnosed, but they can still suffer long-term sequelae; this highlights the public health value of testing close contacts to identify and adequately treat all infections. Karen O’Leary is an Associate Research Analysis Editor with Nature Medicine. Ebola virus infection can cause...

The Russia"“Ukraine crisis has exposed vulnerabilities in US energy security. The US may import only a small amount of Russian oil but it is tied to Russian energy via its participation in highly globalized supply chains. The world is feeling the economic and energy impacts of the Russian invasion...

The urban centres are the first to be discovered in the region, challenging archaeological dogma. You have full access to this article via your institution. Mysterious mounds in the southwest corner of the Amazon Basin were once the site of ancient urban settlements, scientists have discovered. Using a remote-sensing technology to map the terrain from the air, a research team has revealed that, starting about 1,500 years ago, ancient Amazonians built and lived in densely populated centres, featuring 22-metre-tall earthen pyramids and encircled by kilometres of elevated roadways.

Evidence from epidemiological studies on the role of tea drinking in gastric cancer risk remains inconsistent. We aimed to investigate and quantify the relationship between tea consumption and gastric cancer in the Stomach cancer Pooling (StoP) Project consortium. Methods. A total of 9438 cases and 20,451 controls from 22 studies...

Correction to: Nature Biomedical Engineering https://doi.org/10.1038/s41551-022-00880-8, published online 27 April 2022. In the version of this Article initially published, there was an error in the Acknowledgements, where NIH award UG3TR003288 was instead listed as UG3TR000504. The grant number has been corrected in the HTML and PDF versions of the article.

Nitrogen substitutional doping in the Ï€-basal plane of graphene has been used to modulate the material properties and in particular the transition from hole to electron conduction, thus enlarging the field of potential applications. Depending on the doping procedure, nitrogen moieties mainly include graphitic-N, combined with pyrrolic-N and pyridinic-N. However, pyridine and pyrrole configurations of nitrogen are predominantly introduced in monolayer graphene:N lattice as prepared by CVD. In this study, we investigate the possibility of employing pyridinic-nitrogen as a reactive site as well as activate a reactive center at the adjacent carbon atoms in the functionalized C"“N bonds, for additional post reaction like oxidation. Furthermore, the photocatalytic activity of the graphene:N surface in the production of singlet oxygen (1O2) is fully exploited for the oxidation of the graphene basal plane with the formation of pyridine N-oxide and pyridone structures, both having zwitterion forms with a strong p-doping effect. A sheet resistance value as low as 100 Ω/â–¡ is reported for a 3-layer stacked graphene:N film.

Children’s Cancer Hospital 57357 and Cairo University, Cairo, Egypt. Kathmandu Institute of Applied Sciences, Kathmandu, Nepal. Institute of Tropical Medicine Pedro Kouri, Havana, Cuba. Huan Jiang. BGI, Shenzhen, China. Firdausi Qadri. International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh. National Institute of Biomedical Genomics, Kalyani, India. On behalf of...

New insights into a mysterious fossil animal, and uncovering ancient settlements hidden in the Bolivian Amazon. You have full access to this article via your institution. Over a hundred years ago, archaeologists discovered fossils of the aquatic animal Palaeospondylus. But since then researchers have been unable to place where this animal sits on the tree of life. Now, new analysis of Palaeospondylus’s anatomy might help to solve this mystery.

Correction to: Heredity https://doi.org/10.1038/s41437-022-00529-x, published online 08 April 2022. The link https://doi.org/10.5061/dryad.p5hqbzkrc was added to the data availability section. The original article has been corrected. Author information. Author notes. These authors contributed equally: AM Carpenter, BA Graham. Authors and Affiliations. University of Lethbridge, Lethbridge, AB, Canada. A. M. Carpenter, B....

Recent years have seen a rapid acceleration of research on framework materials, including, among others, metal–organic frameworks, covalent organic frameworks, supramolecular organic frameworks, porous organic polymers, and inorganic framework materials. These materials demonstrate properties beyond what was considered achievable for inorganic or organic porous materials in the past, and have potential applications in separation and storage, heterogeneous catalysis, sensing, drug delivery, and beyond.

In the version of this article initially published, the Acknowledgements section for Ryan M. Layer did not include the funding information "NIH/NCI grant no. UO1 CA231978." The grant has been included in the HTML and PDF versions of the article. BioFrontiers Institute, University of Colorado, Boulder, CO, USA. Murad...

Rubia cordifolia L. is a widely used traditional medicine in the Indian sub-continent and Eastern Asia. In the present study, the aqueous leaf extract of the R. Cordifolia was used to fabricate silver nanoparticles (RC@AgNPs), following a green synthesis approach. Effect of temperature (60 °C), pH (8), as well the concentration of leaf extract (2 ml) and silver nitrate (2 mM) were optimized for the synthesis of stable RC@AgNPs. The phytofabrication of nanosilver was validated by UV"“visible spectral analysis, which displayed a distinctive surface plasmon resonance peak at 432 nm. The effective functional molecules as capping and stabilizing agents, and responsible for the conversion of Ag+ to nanosilver (Ag0) were identified using the FTIR spectra. The spherical RC@AgNPs with an average size of"‰~"‰20.98 nm, crystalline nature, and 61% elemental composition were revealed by TEM, SEM, XRD, and. EDX. Biogenic RC@AgNPs displayed a remarkable anticancer activity against B16F10 (melanoma) and A431 (carcinoma) cell lines with respective IC50 of 36.63 and 54.09 µg/mL, respectively. Besides, RC@AgNPs showed strong antifungal activity against aflatoxigenic Aspergillus flavus, DNA-binding properties, and DPPH and ABTS free radical inhibition. The presented research provides a potential therapeutic agent to be utilized in various biomedical applications.

Atrial fibrillation (AF) is the most common arrhythmia encountered in clinical practice. It is associated with the risk of developing some adverse cardiovascular events, including cerebral embolism and heart failure [1]. The development of AF depends on a variety of risk factors, including age, sex, race, hypertension, heart failure, coronary artery disease, valvular heart disease, obesity, diabetes, and chronic kidney disease [2]. Among these risk factors, hypertension has been established to be the most important factor [3, 4] In addition, in patients with AF, hypertension is one of the risk factors for the development of cerebral embolism [5]. In this regard, the Japanese guideline on pharmacotherapy of cardiac arrhythmias recommends the use of the CHADS2 score for the risk assessment of thromboembolism in patients with AF, in which "H" indicates hypertension [6]. An early diagnosis and the subsequent initiation of appropriate treatment for AF, including anticoagulation therapy, is strongly required in hypertensive patients. However, the diagnosis of AF is not easy in the clinical setting. Almost 40% of AF patients are asymptomatic [7]. Most of these patients are diagnosed as having AF at annual health check-up examinations [7]. The type of AF that is diagnosed at health check-up examinations is mostly the persistent type. Paroxysmal and asymptomatic AF is difficult to diagnose because there are few chances to detect AF by standard 12-lead electrocardiogram (ECG) [8]. Some of these patients unfortunately develop cerebral embolism before the diagnosis of AF. Although detailed assessment with 24-h Holter ECG is needed to detect AF, the chance of detection is limited [9]. On the other hand, ambulatory blood pressure monitoring (ABPM) is currently considered the most accurate method for diagnosing hypertension [10, 11]. Several institutions have recommended that most or all subjects with suspected hypertension undergo ABPM [12]. Notably, an ABPM device that especially implements an algorithm to automatically detect AF during each blood pressure measurement has been developed in recent years. In fact, Kollias et al. [13] demonstrated the high diagnostic accuracy of detecting AF using 24-h ABPM devices with AF detection algorithms.

Cilia are characterized by slender, threadlike projections, which are used by biological organisms to control fluid flows at the microscale. Attempts to mimic these structures and engineer cilia-like systems to have broad applications have proved problematic. In this week's issue, Wei Wang and colleagues present electronically controlled artificial cilia that can be used to create flow patterns in near-surface liquids. The researchers use surface-mounted platinum strips, each about 50 micrometres long, 5 micrometres wide and 10 nanometres thick, and capped on one side with titanium. Applying an oscillating potential with an amplitude of around 1 volt to the cilia drives ions on to and off of the exposed platinum surface. These ions create asymmetric forces that generate a beating pattern that can be used to pump surface liquids in various flow geometries. The cover shows an artist's impression of the artificial cilia in action.

Polypropylene fibres are difficult to dye using commonly used techniques due to the high crystallinity and non-polar aliphatic structure, that lack reactive places for dyes in the molecule. Dyeing PP fabric in scCO2 with antibacterial dyes merged the dyeing and finishing methods, resulting in a more productive technique in terms of water and energy consumption. Unmodified polypropylene fabric was dyed with 4-[2-[4-(ethenylsulphonyl)phenyl]diazenyl]-N,N-diethylbenzenamine antibacterial dye under scCO2 medium. The influences of scCO2 working parameters, such as dye concentration, pressure, dyeing time, and temperature, on fabric dye absorption expressed as color strength were studied. The color strength (K/S) was measured as well as CIELAB color parameters. The results were compared with its water dyeing analogue and it was observed that color strength as well as color depth (L) of the samples dyed in scCO2 were noticeably better than its water counterpart. In both scCO2 and water, the fastness properties (washing, rubbing, and light) of the dyed samples were excellent. Antibacterial activity of the dyed polypropylene sample in scCO2 was estimated and the results indicated good antibacterial efficiency.