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Optical Switching Using Transition From Dipolar To Charge Transfer Plasmon Modes In Ge2sb2te5 Bridged Metallodielectric Dimers, Arash Ahmadivand, Burak Gerislioglu, Raju Sinha, Mustafa Karabiyik, Nezih Pala
Optical Switching Using Transition From Dipolar To Charge Transfer Plasmon Modes In Ge2sb2te5 Bridged Metallodielectric Dimers, Arash Ahmadivand, Burak Gerislioglu, Raju Sinha, Mustafa Karabiyik, Nezih Pala
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Capacitive coupling and direct shuttling of charges in nanoscale plasmonic components across a dielectric spacer and through a conductive junction lead to excitation of significantly different dipolar and charge transfer plasmon (CTP) resonances, respectively. Here, we demonstrate the excitation of dipolar and CTP resonant modes in metallic nanodimers bridged by phase-change material (PCM) sections, material and electrical characteristics of which can be controlled by external stimuli. Ultrafast switching (in the range of a few nanoseconds) between amorphous and crystalline phases of the PCM section (here Ge2Sb2Te5 (GST)) allows for designing a tunable plasmonic switch for optical communication applications with significant …
Biosensing Of Dna Oxidative Damage: A Model Of Using Glucose Meter For Non-Glucose Biomarker Detection, Xuena Zhu, Mehenur Sarwar, Qiaoli Yue, Chunying Chen, Chen-Zhong Li
Biosensing Of Dna Oxidative Damage: A Model Of Using Glucose Meter For Non-Glucose Biomarker Detection, Xuena Zhu, Mehenur Sarwar, Qiaoli Yue, Chunying Chen, Chen-Zhong Li
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Non-glucose biomarker-DNA oxidative damage biomarker 8-hydroxy-2?-deoxyguanosine (8-OHdG) has been successfully detected using a smartphone-enabled glucose meter. Through a series of immune reactions and enzymatic reactions on a solid lateral flow platform, 8-OHdG concentration has been converted to a relative amount of glucose, and therefore can be detected by conventional glucose meter directly. The device was able to detect 8-OHdG concentrations in phosphate buffer saline as low as 1.73 ng mL?1 with a dynamic range of 1?200 ng mL?1. Considering the inherent advantages of the personal glucose meter, the demonstration of this device, therefore, should provide new opportunities for the monitoring …
Dynamics Of P53: A Master Decider Of Cell Fate, Qingyin Luo, Jill M. Beaver, Yuan Liu, Zunzhen Zhang
Dynamics Of P53: A Master Decider Of Cell Fate, Qingyin Luo, Jill M. Beaver, Yuan Liu, Zunzhen Zhang
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Cellular stress-induced temporal alterations?i.e., dynamics?are typically exemplified by the dynamics of p53 that serve as a master to determine cell fate. p53 dynamics were initially identified as the variations of p53 protein levels. However, a growing number of studies have shown that p53 dynamics are also manifested in variations in the activity, spatial location, and posttranslational modifications of p53 proteins, as well as the interplay among all p53 dynamical features. These are essential in determining a specific outcome of cell fate. In this review, we discuss the importance of the multifaceted features of p53 dynamics and their roles in the …