Results 31 to 40 of about 31,861 (162)

A Widely-Separated, Highly-Occluded Companion to the Nearby Low-Mass T Tauri Star TWA 30 [PDF]

, 2010
We report the discovery of TWA 30B, a wide (~3400 AU), co-moving M dwarf companion to the nearby (~42 pc) young star TWA 30. Companionship is confirmed from their statistically consistent proper motions and radial velocities, as well as a chance ...
Adam J. Burgasser, Andrew A. West, Baraffe, Bildsten, Bochanski, Carpenter, Cutri, Dagny L. Looper, D’Alessio, Epchtein, Ercolano, Eric E. Mamajek, Faherty, Faherty, Finch, Gizis, Herczeg, Hippelein, Høg, Jacqueline K. Faherty, John J. Bochanski, Kirkpatrick, Liu, Looper, Looper, Luhman, Luhman, Mamajek, Mamajek, Mark A. Pitts, Mohanty, Mohanty, Mohanty, Monet, Monet, Muzerolle, Oliversen, Raga, Rayner, Skrutskie, Soderblom, Song, Song, Subhanjoy Mohanty, Tachihara, Terquem, Tody, Webb, West, West, White, White, Zuckerman, Zuckerman   +53 more
core   +3 more sources

Dual‐Responsive Dynamic Covalent Bond‐Based Assembly of Lipid‐Nanozyme Systems via Multi‐Target Synergy and Efficient Target Enrichment for Ischemic Stroke Therapy

Advanced Science, EarlyView.
This system adopts a biomimetic phospholipid structure, covalently binding iNOS inhibitors, neuroprotective agent PCA and vitamin E derivatives through pH/ROS dual‐responsive bonds, and assembles them with Prussian blue nanozyme to form PBB@AHA. It can efficiently penetrate the blood‐brain barrier and simultaneously release multiple active components ...
Mengcheng Guo, Qingran Guan, Guanyu Qiao, Lixue Zhang, Man Liu, Zhen Li, Qingbiao Yang, Meili Shen, Linlin Liu, Yapeng Li   +9 more
wiley   +1 more source

High spatial resolution mid-infrared observations of the low-mass young star TW Hya [PDF]

, 2007
We want to improve knowledge of the structure of the inner few AU of the circumstellar disk around the nearby T Tauri star TW Hya. Earlier studies have suggested the existence of a large inner hole, possibly caused by interactions with a growing ...
Bouwman, J., Dullemond, C. P., Henning, Th., Jaffe, W., Leinert, Ch., Ratzka, Th.   +5 more
core   +4 more sources

Light‐Harvesting Photothermal Hotspots Enabled by NIR Scattering‐Absorption Coupling

Advanced Science, EarlyView.
By coupling the broadband scattering of nanodiamonds with the plasmonic absorption of gold nanostars, this work proposes a novel strategy for the active modulation of photon transport. This strategy creates localized photothermal hotspots in turbid media and achieves a supra‐additive heating efficiency, thereby providing a universal platform for low ...
Zebin Wu, Changming Bao, Pengyu Zhang, Tao Ding, Weiming Lin, Haodong Li, Wenjian Luo, Xizhi Deng, Hao Wang, Guanle Li, Hongyue Hu, Ye Wang, Dawei Jiang, Yu Zhang, Sisi Jia, Nan Zhang, Min Ke, Le Liang   +17 more
wiley   +1 more source

An Atlas of Spectrophotometric Landolt Standard Stars

, 2005
We present CCD observations of 102 Landolt standard stars obtained with the R-C spectrograph on the CTIO 1.5 m telescope. Using stellar atmosphere models we have extended the flux points to our six spectrophotometric secondary standards, in both the blue
A. M. Soderberg, Bessell M. S., Lisa Germany, Mario Hamuy, Maximilian Stritzinger, Menzies J. W., Nicholas B. Suntzeff, Peter Challis, Ricardo Demarco   +8 more
core   +3 more sources

Construction of a MOF‐Based Snap‐Top Delivery Nanosystem for Powerful Dual‐Responsive Synergistic Colitis Treatment

Advanced Science, EarlyView.
A snap‐top delivery nanosystem based on an azobenzene metal–organic framework achieves targeted release of 6‐mercaptopurine via acid‐stable frameworks and hypoxia/pH dual‐responsive β‐cyclodextrin gates. This multifunctional platform integrates three synergistic mechanisms: precision drug delivery to inflammatory sites, intrinsic antioxidant properties
Xin Li, Miao Xu, Heran Li, Huan Jiang, Xin Wang, Lianjun Ma, Ying‐Wei Yang   +6 more
wiley   +1 more source

Machine Learning‐Augmented Loop‐Mediated Isothermal Amplification‐Enabled Point‐of‐Care for Mpox‐Specific Detection

Advanced Intelligent Systems, EarlyView.
A low‐cost, portable point‐of‐care platform for rapid Mpox detection using loop‐mediated isothermal amplification is reported. The device integrates fluorescence readout and mobile monitoring. A machine‐learning model analyzes temperature data and correlates thermal changes with DNA concentration, enabling sensitive and reliable molecular diagnosis in ...
Nazente Atceken, Ahmed Choukri Abdullah, Olgac Ozarslan, Ziya Yıldız, Savas Tasoglu   +4 more
wiley   +1 more source

Natural Aging of Biomaterials in Ambient and Physiological Environments

Advanced NanoBiomed Research, EarlyView.
Biomaterials used in biomedical applications can change their physical properties over time, even under ambient and physiological conditions. This review highlights key studies on the natural aging of materials ranging from soft hydrogels to metals and ceramics, emphasizing how time‐dependent changes influence function and performance.
Shuyu Zhang, Anne E. Staples
wiley   +1 more source

Mid-infrared spectra of late-type stars: Long-term evolution

, 1999
Recent ground-based mid-infrared spectra of 29 late-type stars, most with substantial dust shells, are compared to ground-based spectra of these stars from the 1960s and 1970s and to IRAS-LRS spectra obtained in 1983.
Cohen M., Hackwell J. A., Haniff C. A., J. D. Monnier, Maihara T., Merrill K. M., Science Team, T. R. Geballe, W. C. Danchi, Weigelt G.   +9 more
core   +1 more source

Effect of Binder on Physical Properties of Extruded Activated Carbon and Its Application to Levofloxacin Adsorption

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Bamboo charcoal–based extruded activated carbons were prepared via molding, pre‐oxidation, carbonization, and steam activation, with coal tar, phenolic resin, and their mixtures employed as binders based on practical availability and technical feasibility. This study focused on the regulatory effects of binders on the mechanical properties and
Huitao Jiang, Songlin Zuo
wiley   +1 more source