Results 121 to 130 of about 164,512 (299)

Multiparametric physicochemical analysis of a type 1 collagen 3D cell culture model using light and electron microscopy and mass spectrometry imaging

Scientific Reports
Three-dimensional cell culture systems underpin cell-based technologies ranging from tissue scaffolds for regenerative medicine to tumor models and organoids for drug screening.
Camilla Dondi, Dimitrios Tsikritsis, Jean-Luc Vorng, Gina Greenidge, Ibolya E. Kepiro, Natalie A. Belsey, Greg McMahon, Ian S. Gilmore, Maxim G. Ryadnov, Michael Shaw   +9 more
doaj   +1 more source

Time-of-Flight Secondary Ion Mass Spectrometry Coupled with Unsupervised Methods for Advanced Saffron Authenticity Screening

Foods
Saffron, renowned for its aroma and flavor, is susceptible to adulteration due to its high value and demand. Current detection methods, including ISO standards, often fail to identify specific adulterants such as safflower or turmeric up to 20% (w/w ...
Elisabetta De Angelis, Omar Al-Ayoubi, Rosa Pilolli, Linda Monaci, Alice Bejjani   +4 more
doaj   +1 more source

Elucidation of the Mass Fragmentation Pathways of Tomatidine and β-Hydroxytomatine using Orbitrap Mass Spectrometry

Natural Product Communications, 2015
Tomatoes, members of the Solanaceae plant family, produce biologically active secondary metabolites, including glycoalkaloids, which may have both adverse and beneficial biological effects.
Giovanni Caprioli, Michael Cahill, Serena Logrippo, Kevin James   +3 more
doaj   +1 more source

Electrostatic‐Attraction‐Driven Self‐Assembled Graphene‐Disordered Rocksalt Composite Cathode for Lithium‐Ion Batteries

Advanced Functional Materials, EarlyView.
A non‐aqueous, solution‐based graphene‐wrapping strategy is shown to stabilize disordered rocksalt LMTOF cathodes without structural degradation. The graphene‐wrapped cathode suppresses oxygen loss and parasitic interfacial reactions, lowers impedance growth, and delivers improved cycling stability and rate capability compared with conventional ball ...
Venkata Sai Avvaru, Mateusz Zuba, Beth L. Armstrong, Shilong Wang, Minh X. Tran, Bernardine L. D. Rinkel, Finn Babbe, Harshita Lohani, Yanbao Fu, Isik Su Buyuker, Vincent Battaglia, Ozgenur Kahvecioglu, Robert Kostecki, Bryan D. McCloskey, Haegyeom Kim   +14 more
wiley   +1 more source

Stochastically Generated Digital Twins of 3D Solid‐State Electrolyte Architecture

Advanced Functional Materials, EarlyView.
A stochastic model and validation suite were developed to produce the highest fidelity computer‐generated (Digital Twin) microstructures of random porous tape‐cast solid‐state battery architectures across µm to mm feature sizes from FIB‐SEM to X‐Ray µCT, respectively.
Jonathan O'Neill, Tanner Hamann, Huanyu Zhang, Faruk Okur, Annapaola Parrilli, Antonia Neels, Keith Duncan, Kostiantyn V. Kravchyk, Maksym V. Kovalenko, Eric D. Wachsman   +9 more
wiley   +1 more source

Tandem mass spectrometry of non-enzymatically glycated peptides and proteins [PDF]

The thesis presents the study of the reaction of glyoxal (ethanedial) with polypeptides. This reaction is important in the food industry as well as during ageing and diabetes mellitus.
Lopez-Clavijo, Andrea F.
core  

Triple-oxygen isotopes of stony micrometeorites by secondary ion mass spectrometry (SIMS): Olivine, basaltic glass and iron oxide matrix effects for sensitive high-mass resolution ion microprobe-stable isotope (SHRIMP-SI) [PDF]

Rationale: Micrometeorites are extraterrestrial particles smaller than ~2 mm in diameter, most of which melted during atmospheric entry and crystallised or quenched to form ‘cosmic spherules’.
Vanhaecke, F, Ávila, JN, Ireland, TR, Baeza, L, Claeys, P, Van Ginneken, M, Soens, B, Debaille, V, Goderis, S, Huber, M, Van Maldeghem, F, Patkar, A, McKibbin, SJ   +12 more
core   +3 more sources

Automated Peak Annotation in Time-of-Flight Secondary Ion Mass Spectrometry via a Physics-Informed Probabilistic Framework

Molecules
Peak annotation in Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) is a persistent bottleneck that typically requires the manual assignment of chemical formulas to hundreds of fragment ion peaks per spectrum.
Jiahua Chen, Yujie Cao, Xingyu Jiang, Chunpeng Wu, Qing Hao, Yun Hu, Jiahui Liu   +6 more
doaj   +1 more source

Gate‐Programmable Linearization of Atomically Thin Nanoelectromechanical Resonators via Duffing Nonlinearity Cancellation

Advanced Functional Materials, EarlyView.
Gate bias is used to cancel Duffing nonlinearity in atomically thin MoS2 drumhead resonators, switching their response from hardening to softening and creating a nearly linear operating point. This electrical control suppresses hysteresis, enables stronger linear drive, and improves signal‐to‐noise ratio, offering a practical route to stable 2D NEMS ...
Pengcheng Zhang, Miroslav Haluska, Cosmin Roman, Christofer Hierold   +3 more
wiley   +1 more source

Three‐Dimensional Biomimetic Aerogel Conduits with Electro‐Ionic‐Immune Coupling Reverse the Pathological Cascade of Spinal Cord Injury

Advanced Functional Materials, EarlyView.
A biomimetic aerogel conduit was engineered from a nanofiber of gelatin/poly(l‐lactic acid) doped with polypyrrole nanoparticles, integrated with tannic acid and Mg2+. This “electro‐ionic‐immune” strategy mimicked spinal cord properties, reduced calcium overload, inflammation, oxidative damage, promoted neural stem cell differentiation, suppressed ...
Qingxiang Liu, Xin Yu, Jingtong Li, Chunyang Zheng, Yukang Zhang, Mingyu Jia, Tan Tian, Weiwei Zheng, Pinghui Zhou, Yingji Mao   +9 more
wiley   +1 more source