Results 241 to 250 of about 718,647 (288)

A 3D Biofabricated Disease Model Mimicking the Brain Extracellular Matrix Suitable to Characterize Intrinsic Neuronal Network Alterations in the Presence of a Breast Tumor Disseminated to the Brain

Advanced Functional Materials, EarlyView.
A 3D disease model is developed using customized hyaluronic‐acid‐based hydrogels supplemented with extracellular matrix (ECM) proteins resembling brain ECM properties. Neurons, astrocytes, and tumor cells are used to mimic the native brain surrounding.
Esra Türker, Mateo S. Andrade Mier, Jessica Faber, Mike Friedrich, Zan Lamberger, Jeannette Weigelt, Christian Stigloher, Nicoletta Murenu, Natascha Schaefer, Jörg Tessmar, Gregor Lang, Silvia Budday, Katrin G. Heinze, Antje Appelt‐Menzel, Pamela L. Strissel, Reiner Strick, Carmen Villmann   +16 more
wiley   +1 more source

Photonic Engineering Enables All‐Passive Upconversion Imaging with Low‐Intensity Near‐Infrared Light

Advanced Functional Materials, EarlyView.
A passive upconversion imaging system enables the observation of scenes illuminated by low‐intensity incoherent near‐infrared light from 750 to 930 nm, by converting it into the visible without the use of external power. The upconverter is enabled by triplet–triplet annihilation in a bulk heterojunction, with absorption enhanced by plasmonic resonators
Rabeeya Hamid, Demeng Feng, Pournima Narayanan, Justin S. Edwards, Manchen Hu, Emma Belliveau, Minjeong Kim, Shenwei Yin, Sanket Deshpande, Chenghao Wan, Linda Pucurimay, David A. Czaplewski, Daniel N. Congreve, Mikhail A. Kats   +13 more
wiley   +1 more source

Peptide Sequencing With Single Acid Resolution Using a Sub‐Nanometer Diameter Pore

Advanced Functional Materials, EarlyView.
To sequence a single molecule of Aβ1−42–sodium dodecyl sulfate (SDS), the aggregate is forced through a sub‐nanopore 0.4 nm in diameter spanning a 4.0 nm thick membrane. The figure is a visual molecular dynamics (VMD) snapshot depicting the translocation of Aβ1−42–SDS through the pore; only the peptide, the SDS, the Na+ (yellow/green) and Cl− (cyan ...
Apurba Paul, Archith Rayabharam, Lisa Almonte, Eveline Rigo, Joshy Joseph, Ashutosh Kumar, Zhuxin Dong, Narayana Aluru, Gregory Timp   +8 more
wiley   +1 more source

A Smart Bio‐Battery Facilitates Diabetic Bone Defect Repair Via Inducing Macrophage Reprogramming and Synergistically Modulating Bone Remodeling Coupling

Advanced Functional Materials, EarlyView.
This research presents a novel implantable bio‐battery, GF‐OsG, tailored for diabetic bone repair. GF‐OsG generates microcurrents in high‐glucose conditions to enhance vascularization, shift macrophages to the M2 phenotype, and regulate immune responses.
Nanning Lv, Haifu Sun, Wenxiang Tang, Yonggang Li, Zhonglai Qian, Lihui Hong, Chong Chen, Hongye Li, Jiaxiang Bai, Yusen Qiao, Mingming Liu   +10 more
wiley   +1 more source

Oxidative spiroannulation of phenolic substrates

, 1985
openaire   +1 more source

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Substrate-Sensitive Graphene Oxidation

The Journal of Physical Chemistry Letters, 2016
The inertness of graphene toward reaction with ambient molecules is essential for realizing durable devices with stable performance. Many device applications require graphene to contact with substrates, but whose impact on the chemical property of graphene has been largely overlooked.
Zhuhua, Zhang, Jun, Yin, Xiaofei, Liu, Jidong, Li, Jiahuan, Zhang, Wanlin, Guo   +5 more
openaire   +2 more sources

Novel substrates for nitric oxide synthases

Bioorganic & Medicinal Chemistry, 2002
Enzymatic generation of nitric oxide (NO) by nitric oxide synthase (NOS) consists of two oxidation steps. The first step converts L-arginine to N(G)-hydroxy-L-arginine (NOHA), a key intermediate, and the second step converts NOHA to NO and L-citrulline.
Ming, Xian, Noriko, Fujiwara, Zhong, Wen, Tingwei, Cai, Satoshi, Kazuma, Adam J, Janczuk, Xiaoping, Tang, Vladislav V, Telyatnikov, Yingxin, Zhang, Xinchao, Chen, Yasuhide, Miyamoto, Naoyuki, Taniguchi, Peng George, Wang   +12 more
openaire   +2 more sources

Absolute Asymmetric Synthesis: Protected Substrate Oxidation

Chemistry – A European Journal, 2015
AbstractThree new conglomerates incorporating bidentate sulfide ligands coordinated by RuII centers have been prepared. Total spontaneous resolution by slow crystallization gives highly enantioenriched crystal batches, which are used in enantioselective oxidation of the sulfide ligands to give chiral sulfoxide complexes with >98 % ee.
Olsson, Susanne, Björemark, Per-Martin, Kokoli, Theonista, Sundberg, Jonas, Lennartson, Anders, McKenzie, Christine, Håkansson, Mikael   +6 more
openaire   +3 more sources

Tungsten Oxide Nanowires on Tungsten Substrates

Nano Letters, 2002
A simple method was discovered to prepare tungsten oxide nanowires directly from tungsten metal. The structure and composition of the nanowires were characterized by high resolution tunneling electron microscopy (HRTEM) and energy dispersive X-ray scattering (EDX), respectively.
Gu, G., Zheng, B., Han, W., Roth, S., Liu, J.   +4 more
openaire   +2 more sources

Oxidation of substrates by Streptomyces griseus

Archives of Biochemistry and Biophysics, 1955
Abstract The rate of oxidation of some sugars, amino acids, and carboxylic acids by S. griseus during vitamin B 12 production has been studied: 1. 1. Added glucose, fructose, etc. are oxidized slowly by the organism grown previously in a medium containing no carbohydrate. 2. 2.
S, GANGULY, S C, ROY
openaire   +2 more sources