Results 181 to 190 of about 12,185 (275)

Polarity‐engineered Sn‐Ti cluster photoresists for sub‐10‐nm high‐resolution lithography

Smart Molecules, EarlyView.
Enhancing the polarity of clusters can optimize their patterning performance; inspired by this strategy, we designed polarity‐enhanced Sn‐Ti oxo clusters via ligand engineering. The optimal TS‐3 with exposure‐induced polarity switch achieves 8 nm patterning in lithography and achieves simultaneous improvement in resolution and patterning performance ...
Daohan Wang, Runfeng Xu, Min Zhang, Xiaofeng Gong, Wenzheng Li, Danhong Zhou, Jun Zhao, Huie Zhu, Zhan Lu, Pengzhong Chen, Xiaojun Peng   +10 more
wiley   +1 more source

Fluorinated copolymer resists for high‐resolution negative‐tone lithography: Preparation and patterning performance

Smart Molecules, EarlyView.
Electron‐beam induced C–F cleavage in –CF3 generates F−, which abstracts a proton to form the acid that catalyzes tBMA deprotection during post‐exposure baking. This self‐sensitization mechanism enables the precise formation of high‐resolution negative‐tone patterns with enhanced sensitivity and resolution.
Yuting Tang, Wenzheng Li, Xinyan Huang, Min Zhang, Han Han, Jialong Zhang, Qinyu Luo, Jiangli Fan, Pengzhong Chen, Xiaojun Peng   +9 more
wiley   +1 more source

Impact of monomer contamination of isopropanol during post‐rinsing on the accuracy of dental models fabricated by vat photopolymerization

Journal of Prosthodontics, EarlyView.
Abstract Purpose The aim of this study was to investigate the impact of an increasing level of monomer contamination of isopropanol (isopropyl alcohol [IPA]) during post‐rinsing on the dimensional stability of test samples produced by vat photopolymerization.
Florian Flierl, Benedikt C. Spies, Severin Rothlauf, Kirstin Vach, Ralf J. Kohal, Jörg Lüchtenborg   +5 more
wiley   +1 more source

Transverse Relaxation Time Constant of Cystathionine in Human Glioma at 3 T

Magnetic Resonance in Medicine, Volume 96, Issue 3, Page 1076-1082, September 2026.
ABSTRACT Purpose Cystathionine (Cth) has emerged as a promising biomarker for identifying 1p/19q codeleted gliomas. However, little is known about the T2 relaxation time constant of Cth in gliomas. The aim of this study was to measure the T2 of Cth in vivo in glioma and compare it to the T2s of other metabolites at 3 T.
Dinesh K. Deelchand, Francesca Branzoli, Jamie D. Walls, Lucia Nichelli, Marc Sanson, Bertrand Mathon, Małgorzata Marjańska   +6 more
wiley   +1 more source

Preclinical 1H MRS Study of a Porcine Model Shows Evidence and Mechanisms for Acute Neuronal Injury in Neonatal Cardiopulmonary Bypass (CPB) Surgery

Magnetic Resonance in Medicine, Volume 96, Issue 2, Page 557-567, August 2026.
ABSTRACT Purpose Congenital heart disease affects 1% of US births, with some infants requiring cardiothoracic surgery under cardiopulmonary bypass (CPB). Optimal surgical parameters to minimize neuronal injury are unknown. We used serial 1H MRS in a neonatal CPB porcine model to assess acute neuronal damage and associated injury mechanisms.
Aaron Omon, Meng Gu, Ralph Hurd, Kirk Riemer, Frank Hanley, Daniel Spielman   +5 more
wiley   +1 more source

MR Spectroscopy Without Water Suppression Using the Gradient Impulse Response Function

Magnetic Resonance in Medicine, Volume 96, Issue 2, Page 530-541, August 2026.
ABSTRACT PurposeNon‐water‐suppressed proton spectroscopy, 1H‐MRS, is desirable, as retaining the strong water resonance can facilitate automated online data corrections, internal concentration referencing, and monitoring of line narrowing effects in functional MRS. Removal of the water suppression module can also mitigate magnetization transfer effects
James B. Bacon, Peter Jezzard, William T. Clarke   +2 more
wiley   +1 more source

Metabolic Assessment in Human Pluripotent Stem Cell‐Derived Cerebral Organoids Using HR‐MAS NMR Spectroscopy

NMR in Biomedicine, Volume 39, Issue 8, August 2026.
We present a direct method for evaluating metabolism in intact hPSC‐derived cerebral organoids (COs) via HR‐MAS 1H‐NMR spectroscopy. This approach suggests that COs exhibit a metabolic profile similar to in vivo human fetal brain, with high levels of lactate and hTau, low levels of NAA, and equimolar levels of Glu and Gln.
Maria Alejandra Castilla Bolanos, Vorapin Chinchalongporn, Rajshree Ghosh Biswas, Colleen Bailey, Maggie Wu, Ronald Soong, Fermisk Saleh, Andre Simpson, Carol Schuurmans, Jamie Near   +9 more
wiley   +1 more source

Quantitative Guanidinium CEST‐Based pH Mapping at 3 T in Healthy and Pathological Muscle

NMR in Biomedicine, Volume 39, Issue 8, August 2026.
Chemical exchange saturation transfer (CEST) enables high‐resolution pH mapping by measuring the exchange rate between guanidinium and water protons. The current method is based on the Z‐spectra fitting with Bloch–McConnell (BM) equations and allows us to detect pH variations on the order of 0.02 pH units in the very restrained pathophysiological pH ...
Valentin Henriet, Pierre‐Yves Baudin, Benjamin Marty, Marc Lapert, Harmen Reyngoudt   +4 more
wiley   +1 more source

Dynamical Modulation of Dual‐Band Thermal Emission in a Graphene‐2D‐hBN‐LiV2O5 Heterostructure

Nanophotonics, Volume 15, Issue 13, 13 July 2026.
A van der Waals heterostructure combining graphene, 2D‐hBN, and LiV2O5 enables dynamically tunable dual‐band mid‐infrared thermal emission with narrow spectral features. Plasmon–phonon strong coupling yields five hybrid polariton branches, whereas coupled‐oscillator models quantify mode mixing and Rabi splittings (up to 27.72 meV via hBN‐thickness ...
Yuhui Cai, Minru Zhu, Peiyuan Huang, Qinmiao Chen, Xuening Wang, Bingfeng Fan, Yongyao Li, Jiayao Huang, Dongxu Zhao   +8 more
wiley   +1 more source

A Deterministic Spectral‐Design Method for Guided‐Mode Resonances

Nanophotonics, Volume 15, Issue 13, 13 July 2026.
Resonance frequency and linewidth are key metrics for guided‐mode resonance devices and their independent control is important for practical applications. We propose a fully analytic deterministic design method for independently obtaining desired target metrics of guided‐mode resonances in dual‐ridge grating waveguide structures.
Joong Hyun Pyo, Yu Sung Choi, Robert Magnusson, Jae Woong Yoon   +3 more
wiley   +1 more source