Results 51 to 60 of about 2,594 (178)

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

Eco-friendly silver nanoparticle-based dual sensors for environmental toxicants: Hg2+ and H2O2 [PDF]

RSC Advances
Monitoring mercury ions (Hg2+) and hydrogen peroxide (H2O2) in aquatic environments is essential due to their environmental persistence and ability to induce severe health disorders.
Md. Ahad Mahamud Nahim, Md Toufiqul Islam, Saurav Kumar Das, A. B. M. Nazmul Islam, Rumpa Kundu, Md. Abu Rayhan Khan, Shofiur Rahman, Mahmoud A. Gawati, Habib Md. Ahsan   +8 more
doaj   +1 more source

Synthesis of glutamine-based green emitting carbon quantum dots as a fluorescent nanoprobe for the determination of iron (Fe3+) in Solanum tuberrosum (potato)

Heliyon, 2023
Herein, we reported the use of N-doped green-emitting carbon quantum dots (N-CQDs) as a fluorescent probe for determining of Fe3+ ions in Solanum tuberosum for the first time.
Olanrewaju A. Aladesuyi, Oluwatobi S. Oluwafemi   +1 more
doaj   +1 more source

Flanking‐Group Engineering Unlocks Emerging Functionalities in Diketopyrrolopyrrole Semiconductors

Advanced Science, EarlyView.
This review presents a comprehensive and unified perspective of flanking‐group engineering in Diketopyrrolopyrrole (DPP) based organic semiconductors that connects molecular‐level design with cross‐device functionalities. By integrating insights from molecular design, solid‐state packing, and device physics, this review seeks to establish general ...
Xiaoyun Wu, Shanshan Zhou, Meng Li, Aung Ko Ko Kyaw, Xiao‐Lei Shi, Qian Liu   +5 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

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

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

ATL2 Recruits TRAK1 to Promote Mitochondrial Transport at ER–Mitochondria Contact Sites

Advanced Science, EarlyView.
ABSTRACT Mitochondrial transport and distribution are crucial for cellular homeostasis, yet whether and how they are regulated by endoplasmic reticulum (ER)–mitochondria contact sites remains unclear. Here, we demonstrate that the ER protein atlastin‐2 (ATL2) orchestrates mitochondrial transport and distribution by promoting assembly of the transport ...
Yiru Cheng, Peiyuan Chai, Xiayuhe Pei, Yiwen Chen, Xiaoshuai Huang, Bei Liu, Yiqian Wu, Junlin Teng, Pengli Zheng, Jianguo Chen   +9 more
wiley   +1 more source