Results 41 to 50 of about 2,728 (180)

Recent Advances in Ferrite‐Based Materials for Biomedical Applications: A Comprehensive Review

Advanced Materials, EarlyView.
Ferrite nanoplatforms are presented as tunable biomedical materials in which synthesis control, cation engineering, defect/morphology regulation, and surface functionalization govern structure–property–bioactivity relationships. These design strategies enable multifunctional applications including MRI contrast, magnetic hyperthermia, targeted drug ...
Pramod D. Mhase, Varsha C. Pujari, Akash V. Fulari, Sunil M. Patange, Sean Li, Danyang Wang, Sagar E. Shirsath   +6 more
wiley   +1 more source

Fluorescence imaging ofDictyostelium discoideumwith a hard X-ray nanoprobe

Journal of Physics: Conference Series, 2009
The preparation and a novel sample environment for X-ray based imaging of freeze-dried Dictyostelium discoideum cells are presented. As a first application a fluorescence imaging experiment with a nanofocused hard X-ray beam has been performed. The successful preparation was verified in elemental mappings with sub-200nm resolution, which allowed for ...
Tucoulou, R., Salditt, Tim, Giewekemeyer, K., Hantke, M., Beta, C., K Giewekemeyer, ; 1Institute for X-ray Physics, Georg-August-University, Friedrich-Hund-Pl. 1, 37077 Göttingen, Germany, M Hantke, ; 1Institute for X-ray Physics, Georg-August-University, Friedrich-Hund-Pl. 1, 37077 Göttingen, Germany, C Beta, ; 2Max-Planck-Insitute for Dynamics and Self-Organization, Am Faßberg 11, 37077 Göttingen, Germany, R Tucoulou, ; 4European Synchrotron Radiation Facility (ESRF), BP 220, 38043 Grenoble, France, T Salditt, ; 1Institute for X-ray Physics, Georg-August-University, Friedrich-Hund-Pl. 1, 37077 Göttingen, Germany   +9 more
openaire   +2 more sources

Engineering Approaches to Modify Immunomodulatory Functions of Mesenchymal Stromal Cells (MSCs): Tissue Regeneration and Clinical Application

Advanced Science, EarlyView.
Mesenchymal stromal cells (MSCs) show promise for treating immune‐related disorders through immunomodulation and tissue regeneration. This review gives a brief overview of current clinical approval of MSC therapies. It also discussed how bioengineering, including genetic modification, biomaterial delivery, extracellular vesicles, and iPSC‐derived MSCs,
Sichen Yang, Kejia Li, Ning Wang, Zhen Li, Zhiyong Zhang, Rocky S. Tuan, Yangzi Jiang   +6 more
wiley   +1 more source

Direct observation of elemental segregation in InGaN nanowires by X‐ray nanoprobe

physica status solidi (RRL) – Rapid Research Letters, 2011
AbstractUsing synchrotron radiation nanoprobe, this work reports on the elemental distribution in single Inx Ga1–xN nanowires (NWs) grown by molecular beam epitaxy directly on Si(111) substrates. Single NWs dispersed on Al covered sapphire were characterized by nano‐X‐ray fluorescence, Raman scattering and photoluminescence spectroscopy. Both Ga and In
Segura-Ruiz, J., Martinez-Criado, G., Sans, J. A., Tucoulou, R., Cloetens, P., Snigireva, I., Denker, C., Malindretos, Joerg, Rizzi, Angela, Gomez-Gomez, M. I., Garro, N., Cantarero, A.   +11 more
openaire   +3 more sources

The Velociprobe: An ultrafast hard X-ray nanoprobe for high-resolution ptychographic imaging [PDF]

Review of Scientific Instruments, 2019
Motivated by the advanced photon source upgrade, a new hard X-ray microscope called “Velociprobe” has been recently designed and built for fast ptychographic imaging with high spatial resolution. We are addressing the challenges of high-resolution and fast scanning with novel hardware designs, advanced motion controls, and new data acquisition ...
Junjing Deng, Curt Preissner, Jeffrey A. Klug, Sheikh Mashrafi, Christian Roehrig, Yi Jiang, Yudong Yao, Michael Wojcik, Max D. Wyman, David Vine, Ke Yue, Si Chen, Tim Mooney, Maoyu Wang, Zhenxing Feng, Dafei Jin, Zhonghou Cai, Barry Lai, Stefan Vogt   +18 more
openaire   +2 more sources

Black Hole Quencher‐Enhanced Plasmonic Photothermal Conversion

Advanced Science, EarlyView.
Researchers have developed a universal method to boost plasmonic photothermal conversion by attaching black hole quencher (BHQ) molecules to matched metal nanostructures. This hybrid approach increases efficiency by roughly threefold, reaching up to 69.1% in the near‐infrared‐II window.
Ruiyuan Zhang, Xinru Chen, Lin Shen, Jin Li   +3 more
wiley   +1 more source

A method to specify X-ray mirrors for nanoprobe beamlines

, 2023
The development of synchrotron radiation light sources has been going on for decades. Recently, X-ray free-electron lasers as well as the fourth-generation synchrotron radiation sources based on multiple bend achromat lattices are commissioned and constructed.
openaire   +2 more sources

Research on the simulation environment of hard X-ray nanoprobe beamline station

Journal of Physics: Conference Series, 2023
Abstract In the hard X-ray nanoprobe beamline station, experiments need to be performed by adjusting the optical equipment in order to obtain good beamline performance. Due to many factors, only through the use of intelligent optimization, the beamline performance can be quickly improved.
Yuhao Liu, Aiguo Li, Yan He, Lifang Zheng, Ying Zhao   +4 more
openaire   +1 more source

Intratumoral Hypoxia Triggers Mitochondrial BHLHE40 ROS Sensing Pathway to Promote Radioresistance in Triple‐Negative Breast Cancer

Advanced Science, EarlyView.
Hypoxia triggers a dual mechanism for BHLHE40 upregulation: reactive oxygen species (ROS)‐dependent post‐translational modification and hypoxia‐inducible factor (HIF)‐dependent transcriptional activation. Under hypoxic conditions, mitochondrial BHLHE40 accumulates and senses ROS via cysteine thiol oxidation and disulfide‐linked homodimer formation ...
Jia Liu, Ziliang Nie, Xi Chen, Guangyu Ji, Yajing Zhang, Zhiqun Zhao, Yuhong Zhang, Xinlong Du, Zhenzhen Zhou, Jiayi Li, Yaozong Yang, Fengqi Sun, Zhibo Yan, Haiquan Lu   +13 more
wiley   +1 more source

Probing the exotic emission behaviors of Gd3+ ions in Gd3Ga5O12 wafer via X-ray excited optical luminescence

Results in Optics
We investigate the exotic emission behaviors of gadolinium gallium garnet (Gd3Ga5O12, GGG) wafer via X-ray absorption near edge structure (XANES) and X-ray excited optical luminescence (XEOL) in an X-ray nanoprobe beamline. The XANES spectra of the Gd L3
Tzu-Chi Huang, Wei-Lun Wei, Sunny Saurabh, Yu-Hao Wu, Chen-Wei Lin, Yi-Chen Li, Chien-Yu Lee, Bo-Yi Chen, Gung-Chian Yin, Mau-Tsu Tang, Wu-Ching Chou, Bi-Hsuan Lin   +11 more
doaj   +1 more source