CO accumulation in confined spaces represents an increasing environmental and health problem. Trace CO capture remains an unmet challenge because human health risks can occur at 1000 parts per million (ppm), a level that challenges current generations of chemisorbents (high energy footprint and slow kinetics) and physisorbents (poor selectivity for CO, especially versus water vapor, and/or poor hydrolytic stability). Here, dynamic breakthrough gas experiments conducted upon the ultramicroporous material SIFSIX-18-Ni-β reveal trace (1000 to 10,000 ppm) CO removal from humid air. We attribute the performance of SIFSIX-18-Ni-β to two factors that are usually mutually exclusive: a new type of strong CO binding site and hydrophobicity similar to ZIF-8. SIFSIX-18-Ni-β also offers fast sorption kinetics to enable selective capture of CO over both N ( ) and HO ( ), making it prototypal for a previously unknown class of physisorbents that exhibit effective trace CO capture under both dry and humid conditions.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6884411 | PMC |
| http://dx.doi.org/10.1126/sciadv.aax9171 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Acyl-anchored metal-organic cages with interior cryptand-like recognition sites for selective removal of radioactive strontium(II).
Sci Bull (Beijing)
December 2024
Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China. Electronic address:
Tailored design of organic linkers or metal nodes can introduce desirable functionalities into metal-organic cages (MOCs), significantly expanding their potential applications. In this study, we present a viable approach for engineering acyl-type metal nodes to create interior oxygen-rich sites within MOCs, enabling specific recognition of metal ions, including radioactive contaminants, while maintaining the structural integrity of the MOCs. A novel MOC featuring a uranyl-sealed calix[4]resorcinarene (C[4]R)-based multisite cavity, referred to as UOC, is synthesized as a prototype.
View Article and Find Full Text PDFPublic Health.
Alzheimers Dement
December 2024
Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), Rennes, NA, France.
Chemicals are ubiquitous in modern life. More than 100,000 chemicals are currently used worldwide, and the production continues to increase. Measuring with accuracy all the components of the chemical exposome represents a tremendous challenge which has been only very partly met so far, and gaps in science remain multiple.
View Article and Find Full Text PDFPublic Health.
Alzheimers Dement
December 2024
Center for Health Disparities Research, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.
Background: Working conditions and contexts may influence the development of Alzheimer's Disease and related dementias (ADRD), exposing individuals to modifiable risk factors across their life. Measurement of ADRD pathology at autopsy provides a gold standard outcome for evaluating the effects of lifetime exposures, but approaches to quantify ante-mortem work exposures are limited. Here we describe a new method to retrospectively capture occupational histories by systematically extracting occupational information using archival public records- i.
View Article and Find Full Text PDFBias in mobility datasets drives divergence in modeled outbreak dynamics.
Commun Med (Lond)
January 2025
Department of Demography, University of California, Berkeley, California, USA.
Background: Digital data sources such as mobile phone call detail records (CDRs) are increasingly being used to estimate population mobility fluxes and to predict the spatiotemporal dynamics of infectious disease outbreaks. Differences in mobile phone operators' geographic coverage, however, may result in biased mobility estimates.
Methods: We leverage a unique dataset consisting of CDRs from three mobile phone operators in Bangladesh and digital trace data from Meta's Data for Good program to compare mobility patterns across these sources.
Development of a novel latent deoxyribonucleic acid detection technique for crime scene investigation using quartz tuning fork-based biosensor technology.
Forensic Sci Int
December 2024
Biological and Environmental Sensing Research Unit, King Abdullah Institute for Nanotechnology, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia. Electronic address:
The forensic Deoxyribonucleic Acid (DNA) fingerprinting is a tool for investigating crime scenes by identifying/tracing criminals and linking crime scenes. However, in cases where experts are unable to detect and identify any biological traces or human-derived cells at the crime scene or while testing the samples in the laboratories, all the advantages offered by forensic laboratories lose their significance. It becomes a waste of time, effort, and resources allocated to these laboratories.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!