ReviewAnaesthesia2026
Developments in nitrous oxide capture technologies: bridging current research to clinical applications.
Review in Anaesthesia, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Ligand Geometry Regulated Architecture of Ultra-Microporous Flexible Guanidinium-Based Hydrogen-Bonded Organic Frameworks for Highly Selective Nitrous Oxide/Nitrogen Separation.Small (Weinheim an der Bergstrasse, Germany) · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
introductionMany inhaled anaesthetic agents are greenhouse gases. Capture technologies have been developed to prevent environmental emissions of volatile agents, but no such devices exist for nitrous oxide. Further to this, the unique societal position of the use of nitrous oxide for patients in labour means it cannot readily be substituted for alternatives. Currently, there are no mandated scavenging systems for nitrous oxide in maternity wards, resulting in not only loss to the environment, but also occupational exposure among labour ward staff, often at levels well above regulatory limits. Without a suitable analgesic alternative, and with contemporary catalytic destruction (cracking) devices for nitrous oxide relatively underutilised, more work must be done to develop capture technologies. While nitrous oxide capture for anaesthetic purposes is severely under-researched, a wide range of literature exists for other applications, including directly from the atmosphere and from waste effluent during chemical processing.
methodsA literature search was used to identify original research articles describing adsorbents for nitrous oxide uptake. The search was limited to published articles over the last 5 years and relevance was screened by abstract review.
resultsDifferent classes of adsorbents that could be used for nitrous oxide capture include activated charcoals, zeolites and metal-organic frameworks. We highlight their important properties and describe their key drawbacks. Recent literature was also examined and strategies in nitrous oxide capture across different industries drawn together to address the unique scenario of maternity analgesia. DISCUSSION: Metal-organic frameworks are identified as a promising class of porous adsorbents that could be applied to a wide range of anaesthetic settings. With over 100,000 structures identified, they have a remarkable tuneability which should be further exploited in clinical settings to not only further progress towards 'net zero' targets but also to improve safety outcomes.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.