Optical manipulation of the alpha subunits of heterotrimeric G proteins using photoswitchable dimerization systems

Yu, Gaigai; Onodera, Hidetoshi; Aono, Yuki; Kawano, Fuun; Ueda, Yoshibumi; Furuya, Akihiro; Suzuki, Hideyuki; Sato, Moritoshi

doi:10.1038/srep35777

Cited by 33 publications

(24 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[14] On the other hand, although theoretical calculations of band structures of perovskite materials have been widely performed for solving such open questions, there are serious differences in the calculated results, such as the effective mass of the hole varying between 0.12 and 0.36 m 0 (on average). [15][16][17][18][19][20] Therefore, the unexplained properties and physical origin of impressive solar-cell performances are still awaiting a direct experimental study of the band structures and the effective masses.…”

mentioning

confidence: 99%

Band Dispersion and Hole Effective Mass of Methylammonium Lead Iodide Perovskite

et al. 2018

View full text Add to dashboard Cite

Solar cells incorporating organic–inorganic perovskites, especially methylammonium lead iodide (CH3NH3PbI3), have recently shown remarkable performances and therefore attracted wide interest. For understanding the origin of the high performance, the effective charge carrier masses of CH3NH3PbI3 are critical. However, reliable experimental data on its electronic band structure, which determines the effective mass, is yet to be provided. Here, the electronic structure of CH3NH3PbI3 single crystals is studied by using angle‐resolved photoelectron spectroscopy on cleaved crystal surfaces after characterizing the surface structure by low‐energy electron diffraction. Coexisting cubic and tetragonal phases of CH3NH3PbI3 are found in diffraction patterns. Moreover, a clear band dispersion of the top valence band is observed along directions parallel to different high‐symmetry points of the cubic structure, in consistence with theoretical calculations. Based on these values, the effective hole mass is then estimated to be 0.24(±0.10)m0 around the M point and 0.35(±0.15)m0 around the X point, which are significantly lower than in organic semiconductors. These results reveal the physical origin of the high performance of solar cells incorporating perovskite materials compared to pure organic semiconductors.

show abstract

mentioning

confidence: 99%

Band Dispersion and Hole Effective Mass of Methylammonium Lead Iodide Perovskite

et al. 2018

View full text Add to dashboard Cite

show abstract

“…In 2016, this model was constructed by com bining group theory with firstprinciples calculations. [134] Using both the valence and conduction bands' anisotropic gfactors, it is possible to estimate the difference between the electron and hole masses. Theoretical results for the exciton energies and the oscillator strength were produced as functions of the magnetic field.…”

Section: Magneto-optical Effectmentioning

confidence: 99%

Spintronics of Hybrid Organic–Inorganic Perovskites: Miraculous Basis of Integrated Optoelectronic Devices

Liao

Cheng

et al. 2019

Advanced Optical Materials

View full text Add to dashboard Cite

Hybrid organic–inorganic perovskite (HOP) spintronics aims to make full use of the properties of electron spin. HOP spintronics has recently emerged as a promising field of research because it provides a new precisely manipulable degree of freedom. The flourishing development activity in this field has benefited from the unique intrinsic spin‐related optoelectronic properties of HOPs, which include triplet formation, a large Stark effect, the magneto‐optical effect, polarized light‐related effects, and complex light emission characteristics, which offer the possibility of providing a new way to control the performance of integrated optoelectronic devices through spin interactions between photons and electrons. Along with the continuous improvements in the theoretical research into HOP spintronics, large numbers of novel optoelectronic devices have been proposed and demonstrated experimentally and have shown great potential for fabrication of next‐generation, high‐performance integrated optoelectronic chips. This review provides an overview of the fundamental principles, novel spin‐generated physical effects, and diverse structures of HOP spintronics systems, along with the applications of HOP spintronics in optoelectronic devices, while also undertaking a general review of the remaining challenges and proposing possible development directions that require further study for the application of HOP spintronics to integrated optoelectronic devices.

show abstract

“…Additionally, Heo and co‐workers demonstrated that Opto‐STIM1‐induced increased Ca 2+ concentrations in CA1 neuronal cells in the hippocampus are implicated in the reinforcement of context‐specific memory. The Sato group developed Ca 2+ optotools based on the Magnet and PhyB/PIF6 systems . For the Magnet‐based construct, pMagFast1 was fused with Gαq, and nMagHigh1 was localized at the plasma membrane through a CAAX motif.…”

Section: Figurementioning

confidence: 99%

Induction of Signal Transduction by Using Non‐Channelrhodopsin‐Type Optogenetic Tools

Ueda

Sato

2018

ChemBioChem

Self Cite

View full text Add to dashboard Cite

Signal transductions are the basis for all cellular functions. Previous studies investigating signal transductions mainly relied on pharmacological inhibition, RNA interference, and constitutive active/dominant negative protein expression systems. However, such studies do not allow the modulation of protein activity with high spatial and temporal precision in cells, tissues, and organs in animals. Recently, non-channelrhodopsin-type optogenetic tools for regulating signal transduction have emerged. These photoswitches address several disadvantages of previous techniques, and allow us to control a variety of signal transductions such as cell membrane dynamics, calcium signaling, lipid signaling, and apoptosis. In this review we summarize recent advances in the development of such photoswitches and in how these optotools are applied to signaling processes.

show abstract

Optical manipulation of the alpha subunits of heterotrimeric G proteins using photoswitchable dimerization systems

Cited by 33 publications

References 26 publications

Band Dispersion and Hole Effective Mass of Methylammonium Lead Iodide Perovskite

Band Dispersion and Hole Effective Mass of Methylammonium Lead Iodide Perovskite

Spintronics of Hybrid Organic–Inorganic Perovskites: Miraculous Basis of Integrated Optoelectronic Devices

Induction of Signal Transduction by Using Non‐Channelrhodopsin‐Type Optogenetic Tools

Contact Info

Product

Resources

About