Results 151 to 160 of about 2,088,465 (288)

Impact of Monomer Purity on the Acid‐Catalyzed ROP of Sarcosine N‐Carboxyanhydrides: A Comparative Study of Phosgene‐Free Synthetic Routes toward High‐Molecular‐Weight Polysarcosine

Macromolecular Rapid Communications, EarlyView.
A robust, phosgene‐free oxalyl chloride/silyl‐mediated route yields high‐purity sarcosine N‐carboxyanhydride (Sar‐NCA) by eliminating residual impurities that compromise polymerization control. This strategy enables well‐defined, acid‐catalyzed ring‐opening polymerization under ambient conditions, producing polysarcosine with Mn up to 186 kDa and ...
Anna Golunova, Ana Elena Morán Espinoza, Jana Dvořáková, Petr Hezký, Andres de los Santos Pereira, Lenka Kotrchová, Vladimír Proks   +6 more
wiley   +1 more source

Calcium Isotopic Composition in Reindeer (Rangifer tarandus) Bones and Tooth Enamel: A Scalable Tool to Quantify Nursing Frequency in Past and Modern Populations? [PDF]

Rapid Commun Mass Spectrom
ABSTRACT Rationale Populations of North American caribou and Eurasian reindeer (Rangifer tarandus sspp.), essential for Arctic ecosystems and human communities, are experiencing unprecedented declines due to climate change and anthropogenic pressures. While understanding their historical resilience and demographic dynamics is critical for conservation,
Hassler A, Lindroos EE, Yang L, Mester Z, Britton K, Bataille CP.   +5 more
europepmc   +2 more sources

Magnesium isotope analysis using a MC-ICP-MS

Journal of the Geological Society of Korea, 2012
Min-Seok Choi, Sin-Woo Lee, Jong-Sik Ryu, Kwang-Sik Lee, Hyung-Seon Shin   +4 more
openaire   +1 more source

Serum elemental profile‐based machine learning models for Alzheimer's disease identification and cognitive score prediction

Neuroprotection, EarlyView.
Serum elemental profiling combined with machine learning supports exploratory Alzheimer's disease (AD) identification and cognitive score prediction. In this retrospective cross‐sectional study, 874 participants from the BANC‐PUMC, including cognitively normal controls and patients with AD, were analyzed.
Haotian Liu, Xinnan Liu, Yashuang Chen, Meng Pan, Ying Fu, Chao Ma, Wei Ge   +6 more
wiley   +1 more source

Suitability of slightly saline irrigation for alleviating drought stress in taro and yam in Tonga: Implications for climate‐resilient Pacific cropping systems

PLANTS, PEOPLE, PLANET, EarlyView.
There is an increasing risk of drought and salinisation of soil and groundwater globally, including in Pacific Island countries such as Tonga. Irrigating crops with slightly saline water, such as that produced by emerging desalination technologies, could help to alleviate droughts.
Harry Myrans, Mona E. Mahani, Lily McDonald, Vunivesi Minoneti, Hepisipa Lavaka, Salote Puletau, Viliami T. Manu, Juan F. Torres, Roslyn M. Gleadow, Steven Crimp   +9 more
wiley   +1 more source

Development of high-precision La isotope analysis by MC-ICP-MS [PDF]

Goldschmidt2021 abstracts, 2021
Mitsuru Suzuki, Tsuyoshi Iizuka, Kota Yamamoto, Takafumi Hirata   +3 more
openaire   +1 more source

Sonified Signals From a Compact FT‐ICR Instrument: A Feasibility Study. I—Data Mapping to an Equal‐Tempered Chromatic Scale

Rapid Communications in Mass Spectrometry, EarlyView.
ABSTRACT Rationale Ions trapped within a Penning cell (ICR) travel periodic orbits whose frequencies are dependent on their mass‐to‐charge ratio and the value of the magnetic field passing through the trap. Fourier transformation (FT‐ICR) decomposes the signal induced in the detection circuit by the rotation of the ions in the cell after the ...
Patrick Arpino, Michel Heninger
wiley   +1 more source

Copper Isotope Measurements Using a Neptune MC-ICP-MS

Journal of the mineralogical society of korea, 2016
Sanghee Park, Jong-Sik Ryu, Hyung Seon Shin, Youngwoo Kil, Yunsoo Jo   +4 more
openaire   +1 more source

Tumor microenvironment responsive and nanozyme‐catalyzed photodynamic therapy via lysosome‐localized copper‐doped carbon dots

Responsive Materials, EarlyView.
The lysosome‐localized copper‐doped carbon dots (Cu‐MLCDs) leverage the high expression of glutathione (GSH)/H2O2 in the tumor microenvironment to achieve fluorescence reactivation enhancement. Through its multi‐nanozyme activities (glutathione peroxidase, peroxidase, and catalase), this nanoplatform relieves hypoxia, depletes GSH, and synergistically ...
Weixia Qin, Chengwei Hu, Haimei Zhu, Junjie Cui, Yaqing Cheng, Junfa Zhu, Qian Xu, Antonio Claudio Tedesco, Hong Bi   +8 more
wiley   +1 more source

Silver‐Modulated Copper Dynamics Under Pulsed Tandem Electrochemical CO2 Reduction

Small, EarlyView.
Under pulsed CO2 reduction, Ag does more than provide CO for tandem catalysis. It redirects how Cu dissolves, redeposits, and remains catalytically relevant, generating an Ag‐rich yet Cu‐active working state. Correlative surface and solution analysis reveal that tandem performance emerges from dynamic material redistribution rather than from a static ...
Blaž Tomc, Rajeena Uruniyengal, Matjaž Finšgar, Mitja Kostelec, Matic Plut, Piotr Dobroń, Adam Dębski, Agata Radziwonko, Paweł Jóźwik, Marjan Bele, Martin Šala, Mohammed Azeezulla Nazrulla, Małgorzata Norek, Francisco Ruiz‐Zepeda, Ana Rebeka Kamšek, Nejc Hodnik, Wojciech J. Stępniowski   +16 more
wiley   +1 more source