Results 51 to 60 of about 619,631 (183)

Electrostatic Self‐Assembly of Ag‐NPs Mediated by Eu3+ Complexes for Physically Unclonable Function Labels

open access: yesAggregate, Volume 6, Issue 3, March 2025.
This study proposes a self‐assembly method using positively charged Eu3+ complexes and negatively charged Ag‐NPs to prepare Eu/Ag‐NP composites. These composites enhance the photoluminescent quantum yield and Raman signals, achieving high‐resolution signal acquisition. The resulting physically unclonable function (PUF) tags exhibit inherent randomness,
Yao Kou   +7 more
wiley   +1 more source

Slow collisions of multicharged ions with metal surfaces

open access: yes, 1993
Some recent experimental results in the area of multicharged ion-surface interactions are summarized. Discussed are measurements of projectile K-Auger electron emission during interactions of hydrogen-like multicharged ions with clean and cesiated metal ...
Meyer, F. W.
core  

Development of a 1+ /N+ setup for the production of multicharged radioactive alkali ions in SPIRAL

open access: yes, 2008
In the framework of the production of radioactive ion beams by the isotope separator online method, a new system has been developed at GANIL/SPIRAL I to produce multicharged alkali ions. The principle, referred to as the “direct 1 + /N+ method,” consists
Maunoury, L.   +21 more
core   +1 more source

Determination of physicochemical parameters of (bio)molecules and (bio)particles by capillary electromigration methods

open access: yesJournal of Separation Science, Volume 47, Issue 11, June 2024.
The review provides an overview of recent developments and applications of capillary electromigration (CE) methods for the determination of important physicochemical parameters of various (bio)molecules and (bio)particles. These parameters include actual and limiting (absolute) ionic mobilities, effective electrophoretic mobilities, effective charges ...
Sille Štěpánová, Václav Kašička
wiley   +1 more source

Electron capture by multicharged ions

open access: yes, 1976
Recent research on electron transfer between multicharged ions and neutral targets is reviewed. The needs of astrophysics and thermonuclear fusion coupled with the availability of beams of slow multicharged ions have stimulated interest in these ...
Crandall, D. H.
core  

Cluster assistant generation of C2+ and C3+ ions in nanosecond laser ionization of seeded benzene beam

open access: yes, 2004
Cluster assisted photoionization processes of benzene, which was seeded in argon, induced by an intense 25 ns Nd-YAG laser has been studied by means of time-of-flight mass spectrometry. At the laser intensity of 10(11) W/cm(2), multicharged ions Cq+ (q =
Kong, XL, Li, HY, Luo, XL, Niu, DM
core   +1 more source

Composition and Conformation of Hetero‐ versus Homo‐Fluorinated Triazolamers Influence their Activity on Islet Amyloid Polypeptide Aggregation

open access: yesChemistry – A European Journal, Volume 30, Issue 28, May 17, 2024.
While fluorinated molecules constitute nearly 30 % of all newly approved drugs, and peptidomimetic foldamers provide original solutions to resolve certain peptide problems, the interest of fluorinated foldamers is still little addressed. The conformational and biological interest of fluorinated triazolamers as an alternative to natural peptides is ...
José Laxio Arenas   +11 more
wiley   +1 more source

Gaseous [M - H]+ ions of alpha,omega-diphenylalkanes: cyclization to [M + H]+ type ions of benzocycloalkanes as recognized by chain-length dependent proton exchange [PDF]

open access: yes, 1992
Kuck D. Gaseous [M - H]+ ions of alpha,omega-diphenylalkanes: cyclization to [M + H]+ type ions of benzocycloalkanes as recognized by chain-length dependent proton exchange. International Journal of Mass Spectrometry and Ion Processes.
Kuck, Dietmar
core   +1 more source

Determination of Binding Constants for the Complexes Between Heavy Metal Ions and Cucurbit[n]uril

open access: yesChemistrySelect, Volume 9, Issue 18, May 13, 2024.
The Cucurbit[n]uril (CB[n]) structure, with two electrostatically negative portals, facilitates ion‐dipole interactions with cationic species, demonstrating excellent binding affinities. A cyclic voltammetry (CV) study revealed that the presence of CB[n] with free heavy metal‐ions (HM(II)) ions in solution causes a slight shift in peak potentials and a
Alenzo Murray   +2 more
wiley   +1 more source

Bactericidal action of positive and negative ions in air [PDF]

open access: yes, 2007
YesIn recent years there has been renewed interest in the use of air ionisers to control of the spread of airborne infection. One characteristic of air ions which has been widely reported is their apparent biocidal action.
Beggs, Clive B   +33 more
core   +1 more source

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