Results 181 to 190 of about 249,931 (264)

Practical Applications of Secondary/Extractive Electrospray Ionization (SESI): A Versatile Tool for Real‐Time Chemical Analysis

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT In the 1980s, researchers discovered the remarkable ability of electrospray plumes to effectively ionize gas‐phase molecules via secondary ionization. Around 20 years later—coinciding with the ambient mass spectrometry revolution—secondary electrospray ionization (SESI) and extractive electrospray ionization (EESI) coupled to mass spectrometry
Xin Luo   +5 more
wiley   +1 more source

Nachtsicht ins All mit dem bloßen Auge: Sag mir, wie weit die Sterne steh'n

open access: yesPhysik in unserer Zeit, EarlyView.
Beim Blick in den Nachthimmel sehen wir ohne optische Hilfsmittel und abhängig von der lokalen Lichtverschmutzung viele Hundert bis maximal einige Tausend Sterne und auch einige Galaxien. Aber wie weit sind diese von uns entfernt? Und bis zu welchen maximalen Entfernungen können wir Objekte im Weltall mit dem bloßen Auge wahrnehmen?
Michael Vollmer
wiley   +1 more source

A long-duration gamma-ray burst of dynamical origin from the nucleus of an ancient galaxy

open access: yes, 2022
Levan A   +29 more
europepmc   +1 more source

Cherenkov Telescope Array Observatory: Die Zukunft der Gammaastronomie

open access: yesPhysik in unserer Zeit, EarlyView.
Im Jahr 1989 hat das Wipple‐Observatorium die erste Quelle hochenergetischer Gammastrahlung entdeckt. 2002 waren dann sechs Quellen bekannt, 2024 schon mehr als 300. Und das ist immer noch lediglich die Spitze des Eisbergs in der jungen Geschichte der Gammaastronomie.
Daniela Hadasch, Daniel Mazin
wiley   +1 more source

Evaluation of the Potential Carrier and Controlled Release of Antibiotics by Zinc, Nickel, and Cobalt Ferrite Nanoparticles Encapsulated with Silica and Functionalized with Moxifloxacin Hydrochloride

open access: yesParticle &Particle Systems Characterization, EarlyView.
The study reveals the inhibitory potential of encapsulated nanoparticles functionalized with moxifloxacin hydrochloride. ABSTRACT Bacterial resistance represents a significant global health threat associated with the development of microbial resistance genes.
Amanda S. Abreu   +6 more
wiley   +1 more source

A Review of Metal–Organic Framework (MOF) Based Active Food Packaging: Materials Selection, Cellulose Matrices Current Advances, Synthesis and Characterizations

open access: yesPackaging Technology and Science, EarlyView.
Active packaging offers an effective approach to extending food shelf life. This review summarizes the past decade of progress in metal‐organic framework (MOF)‐based active food packaging, highlighting material selection, characterization, challenges, and future prospects.
Belladini Lovely   +4 more
wiley   +1 more source

Magnetar emergence in a peculiar gamma-ray burst from a compact star merger. [PDF]

open access: yesNatl Sci Rev
Sun H   +44 more
europepmc   +1 more source

Transforming Fragile Hydrogel Chips Into Standardized Cartridges via Contact Line Pinning for Robust Microfluidics

open access: yesSmall, EarlyView.
Hydrogel‐based microfluidic chips revolutionize drug delivery, tissue engineering, and biosensing, yet face challenges due to fragility and connection difficulty. This study introduces a novel cartridge design that enhances usability through a hydrogel–plastic hybrid design and a contactless connection method.
Sin‐Yung Siu   +8 more
wiley   +1 more source

BATSE observations of gamma-ray burst spectra. I: Spectral diversity

open access: yes, 1993
J. Matteson   +13 more
semanticscholar   +1 more source

Unraveling Surface Reconstruction of MOF‐Derived La, P‐Co3O4 for Energy‐Efficient Water and Urea Electrolysis

open access: yesSmall Methods, EarlyView.
Enhanced OER by surface reconstruction: The dopant promotes surface reconstruction and surface oxygen vacancies, which enhance electrochemical activity, charge transfer, and stability, resulting in improved water and urea electrolysis. Abstract Constructing robust electrocatalysts and shedding light on the processes of surface reconstruction is crucial
Bharathi Arumugam   +8 more
wiley   +1 more source

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