Results 51 to 60 of about 574,698 (334)
FEBS Letters, EarlyView.In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai +9 more
wiley +1 more source
Time‐Domain Near‐Field Scanning Microscopy of Terahertz Metasurfaces
Advanced Photonics ResearchMetasurfaces have emerged as an ultrathin, versatile method for manipulating terahertz surface plasma waves that are critical for subwavelength optical control but are very challenging to be excited and characterized. This review presents recent advances
Ruxue Wei, Soren Petersen, Weili Zhang
doaj +1 more source
IEEE Photonics JournalIn this work, we investigate the effects of two distinct physical mechanisms, the antenna effect and plasmon resonance, on electric field enhancement in representative geometrical structures and at the apex of a sharp tip.
Ayushman Ramola +4 more
doaj +1 more source
High-resolution photocurrent microscopy using near-field cathodoluminescence of quantum dots
AIP Advances, 2013 We report a fast, versatile photocurrent imaging technique to visualize the local photo response of solar energy devices and optoelectronics using near-field cathodoluminescence (CL) from a homogeneous quantum dot layer.
Heayoung P. Yoon +8 more
doaj +1 more source
Experimental determination of distance and orientation of metallic nanodimers by polarization dependent plasmon coupling [PDF]
Papers in Physics, 2010 Live cell imaging using metallic nanoparticles as tags is an emerging technique to visualize long and highly dynamic processes due to the lack of photobleaching and high photon rate.
H. E. Grecco, O. E. Martínez
doaj +1 more source
Aggressive prostate cancer is associated with pericyte dysfunction
Molecular Oncology, EarlyView.Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero +11 more
wiley +1 more source
Optimization of s-Polarization Sensitivity in Apertureless Near-Field Optical Microscopy
International Journal of Optics, 2012 It is a general belief in apertureless near-field microscopy that the so-called p-polarization configuration, where the incident light is polarized parallel to the axis of the probe, is advantageous to its counterpart, the s-polarization configuration ...
Yuika Saito +2 more
doaj +1 more source
Atomic resolution imaging at 2.5 GHz using near-field microwave microscopy
, 2010 Atomic resolution imaging is demonstrated using a hybrid scanning tunneling/near-field microwave microscope (microwave-STM). The microwave channels of the microscope correspond to the resonant frequency and quality factor of a coaxial microwave resonator,
Lee, Jonghee +4 more
core +1 more source
Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway
Molecular Oncology, EarlyView.Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed +10 more
wiley +1 more source
Pushing the limits of deep-ultraviolet scanning near-field optical microscopy
APL Photonics, 2019 Deep-ultraviolet (DUV) microscopy and microspectroscopy have received much attention in label-free live-cell imaging, selective molecular analysis, and optical characterizations of ultrawide bandgap materials.
Ryota Ishii +2 more
doaj +1 more source