Results 111 to 120 of about 331,698 (221)

A Flexible‐Substrate 5‐µm‐Diameter Needle Electrode: Minimizing Neuronal Death and Enabling Year‐Long Neural Recording

Advanced Materials Interfaces, EarlyView.
An electrophysiological recording technology that uses a 5‐µm‐diameter microneedle electrode device is presented. Due to the remarkable small dimension of the microneedle, the electrode provides minimal invasive neural recording in a mouse brain and enables long‐term recording exceeding the year‐long duration.
Hinata Sasaki, Koji Yamashita, Sayaki Shimizu, Kensei Sakamoto, Rika Numano, Kowa Koida, Takeshi Kawano   +6 more
wiley   +1 more source

Carbon Dot‐Doped Silica Xerogel Phosphors Excited by Blue LEDs and LDs for the Brilliant White Lighting of Endoscope Tips

Advanced Materials Interfaces, EarlyView.
Carbon dot‐doped silica xerogel phosphors derived by Sol–Gel method exhibit brilliant white light, making them promising candidates for next‐generation endoscopes. The approach offers a sustainable, scalable solution for the development of advanced endoscopic devices with enhanced imaging capabilities and reduced environmental impacts.
Hirohisa Iwabayashi, Kenji Okada, Arisa Fukatsu, Kazumasa Suzuki, Ryohei Mori, Masahide Takahashi   +5 more
wiley   +1 more source

Polymer Nanogels with Albumin Reporting Interface Created Using RAFT Precipitation Polymerization for Disease Diagnosis and Food Testing

Advanced Materials Interfaces, EarlyView.
Herein, polymer nanogels with a reporting interface for albumin are synthesized through reversible addition–fragmentation chain transfer (RAFT) precipitation polymerization of di(ethylene glycol) methyl ether methacrylate and N,N’‐methylenebis(acrylamide) using a poly(2‐methacryloyloxyethyl phosphorylcholine) macro‐RAFT agent, followed by dansyl ...
Yukiya Kitayama, Erika Yoshimatsu, Atsushi Harada   +2 more
wiley   +1 more source

Direct‐Write Printing of Multicolor Electroluminescent Films for Stretchable Display

Advanced Materials Technologies, EarlyView.
This work presents a mask‐free, fully printable alternating‐current electroluminescent (PACE) film using a direct‐write printing strategy. The multicolor PACE film, available in blue, green, and orange, reaches a thickness of ≈150 µm and achieves 180 cd m⁻2 at 6 V µm⁻¹.
Tianhao Yu, Seungse Cho, Junsang Lee, Ziheng Wang, Chi Hwan Lee   +4 more
wiley   +1 more source

Driving Micro‐Objects Using Optical Force due to Fluorescence Emission From Molecules

Advanced Optical Materials, EarlyView.
Emission of fluorescence from a micro‐object in a specific direction is expected to generate an optical force driving the object in the opposite direction of the emission, like a rocket. To demonstrate this ‘photon‐driven micro‐rocket’, we prepared dye‐doped polymer micro‐object (PMO) one surface of which was covered with metallic film; the PMO ...
Syoji Ito, Takayuki Nanno, Takahiro Kaji, Mamoru Tamura, Takuya Iida, Hiroshi Miyasaka   +5 more
wiley   +1 more source

Stimulated Raman Scattering with Optical Vortex Beams

Advanced Photonics Research, EarlyView.
This study presents exact analytical expressions for stimulated Raman scattering with Laguerre‐Gaussian beams, revealing signal dependence on topological and hyperbolic momentum. The results provide a theoretical foundation for coherent Raman imaging and detecting orbital angular momentum of light via structured light in nonlinear optics.
Minhaeng Cho
wiley   +1 more source

EVALUACIÓN CITOTÓXICA DE FRACCIONES OBTENIDAS DE LA ESPONJA MARINA DEL CARIBE COLOMBIANO Topsentia ophiraphidites

Revista de la Facultad de Ciencias, 2013
A partir de las esponjas marinas se han obtenido gran cantidad de sustancias con potencial antitumoral. En este estudio se realizó la evaluación de la actividad citotóxica, de cinco  fracciones de la esponja marina del Caribe colombiano Topsentia ...
LINA BLANDÓN, MARÍA MÁRQUEZ, JUAN LÓPEZ, DIANA MÁRQUEZ, ALEJANDRO MARTÍNEZ   +4 more
doaj  

Design of Double‐Sided Optical Coatings for Space Cooling Through Vertical Windows

Advanced Photonics Research, EarlyView.
Dual‐sided radiative cooling glass (DSRCG) utilizes the optical properties of epsilon‐near‐zero materials and ITO to exhibit directional emission toward the outdoor space, facilitating the heat dissipation of the glass, while exhibiting low emission toward the enclosure.
Hyunkyu Kwak, Do Hyeon Kim, Young Min Song   +2 more
wiley   +1 more source

Heterogeneously Catalyzed Cascade Oxidative Coupling/Dearomative Spirocyclization of Diarylamines: Facile Access to Spiroacridines

Advanced Synthesis &Catalysis, EarlyView.
Abstract Spirocyclic compounds, particularly spirocyclohexadienones, are important in pharmaceuticals due to their biological activity. In this study, we develop a catalytic cascade oxidative spirocyclization of diarylamines for the rapid access to highly functionalized spirocyclohexadienones. Using commercially available recyclable heterogeneous metal
Kenji Matsumoto, Naho Sato, Yoshinori Kobayashi, Kanako Date, Yasuko Okamoto, Touya Kariya, Tsukasa Hirokane, Masahiro Yoshida   +7 more
wiley   +1 more source

Development of Hydrofluoroolefin (HFO)‐based direct O‐fluoroalkenylation of phenols targeting tyrosine conjugation

Advanced Synthesis &Catalysis, Accepted Article.
Methodology for direct fluoroalkenylation of phenolic OH function was developed using a fluorinated electrophilic reagent derived from HFO1234ze gas. Besides various functionalized phenols, tyrosine and tyrosine‐based peptides were successfully conjugated under the optimized reaction conditions.
Rihárd Sisa, Ferenc Béke, Zoltán Novák   +2 more
wiley   +1 more source