Quasinormal modes and Hawking radiation of a charged Weyl black hole

Fu, Guoyang; Zhang, Dan; Liu, Peng; Kuang, Xiao-Mei; Pan, Qiyuan; Wu, Jian-Pin

doi:10.1103/physrevd.107.044049

Cited by 19 publications

(9 citation statements)

References 78 publications

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“…The natural properties of silk fibroin (SF) and sericin (SS) have gained considerable attention in the field of regenerative medicine. 146,147 SS, bearing immunological resemblance to natural silk, could induce polarization of macrophages toward the M1 phenotype, thereby initiating vascular regeneration through the stimulation of VEGF secretion. Conversely, SF demonstrated low immunogenicity and remarkable biocompatibility.…”

Section: Fiber Componentmentioning

confidence: 99%

Electrospun fiber‐based immune engineering in regenerative medicine

Xu,

Saiding,

Zhou

et al. 2024

Smart Medicine

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Immune engineering, a burgeoning field within regenerative medicine, involves a spectrum of strategies to optimize the intricate interplay between tissue regenerative biomaterials and the host tissue. These strategies are applied across different types of biomaterials and various disease models, which encompasses finely modulating the immune response at the levels of immune cells and factors, aiming to mitigate adverse effects like fibrosis and persistent inflammation that may arise at the injury site and consequently promote tissue regeneration. With the continuous progress in electrospinning technology, the immunoregulatory capabilities of electrospun fibers have gained substantial attention over the years. Electrospun fibers, with their extracellular matrix‐like characteristics, high surface‐area‐to‐volume ratio, and reliable pharmaceutical compound capacity, have emerged as key players among tissue engineering materials. This review specifically focuses on the role of electrospun fiber‐based immune engineering, emphasizing their unique design strategies. Notably, electrospinning actively engages in immune engineering by modulating immune responses through four essential strategies: (i) surface modification, (ii) drug loading, (iii) physicochemical parameters, and (iv) biological grafting. This review presents a comprehensive overview of the intricate mechanisms of the immune system in injured tissues while unveiling the key strategies adopted by electrospun fibers to orchestrate immune regulation. Furthermore, the review explores the current developmental trends and limitations concerning the immunoregulatory function of electrospun fibers, aiming to drive the advancements in electrospun fiber‐based immune engineering to its full potential.

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Section: Fiber Componentmentioning

confidence: 99%

Electrospun fiber‐based immune engineering in regenerative medicine

Xu,

Saiding,

Zhou

et al. 2024

Smart Medicine

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“…Currently, the integration of silk into the conductive region of neural electrodes enable cellular activity that enhance neural signal transduction, 44,45 but silk-based conductive neural interface combined with carbon-based material are usually fabricated by eletrospun 46 and chemical synthesis, 47 which may require numerous toxic chemicals solvent and reactants and even lead to the deterioration of beta-crystallization of the silk. Here, our as-developed silk/gelatin/rGO neural interface developed through the electrogelation could produce silk/rGO conductive hydrogel with enhanced crystallization that permits structural stability and electrochemical activity.…”

Section: Electrochemical Degradation and Electro-stimulated Drug Rele...mentioning

confidence: 99%

Electrogelated drug-embedded silk/gelatin/rGO degradable electrode for anti-inflammatory applications in brain-implant systems

Lin,

Chen

et al. 2024

J. Mater. Chem. B

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“…and using the light-cone coordinates u = t − r * and v = t + r * [67], the above equation can be written as The use of light-cone coordinates can simplify the analysis of gravitational waves, since the equation takes on a simple form in these coordinates. In particular, the equation becomes a wave equation in u and v, which can be solved using standard techniques such as finite difference method (FDM) [68][69][70][71][72]. We compute the waveform ψ(u, v) by imposing the following initial conditions for eq.…”

Section: Ringdown Waveformsmentioning

confidence: 99%

Gravito-electromagnetic perturbations of MOG black holes with a cosmological constant: quasinormal modes and ringdown waveforms

Liu,

Fang,

Jing

et al. 2023

J. Cosmol. Astropart. Phys.

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In this paper, we present a black hole solution with a cosmological constant in the Scalar-Tensor-Vector Modified Gravity (MOG) theory, where the strength of the gravitational constant is determined by G = G N(1 + α). We derive the master equations for gravito-electromagnetic perturbations and numerically solve for the Quasinormal Mode (QNM) spectrum and the ringdown waveforms. Our research results show that increasing the MOG parameter α leads to a decrease in both the real and imaginary parts of the QNM frequencies for electromagnetic and gravitational modes. Similarly, increasing the cosmological constant Λ also results in a decrease in both the real and imaginary parts of the QNM frequencies for these modes. These trends are observed when compared to standard Schwarzschild-de Sitter (S-dS) or MOG black holes, respectively. Meanwhile, the result indicates that in the MOG-de Sitter spacetime, the frequencies for electromagnetic and gravitational modes display isospectrality, and exhibit the same ringdown waveforms. Our findings have implications for the ringdown phase of mergers involving massive compact objects, which is of particular relevance given the recent detections of gravitational waves by LIGO.

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Quasinormal modes and Hawking radiation of a charged Weyl black hole

Cited by 19 publications

References 78 publications

Electrospun fiber‐based immune engineering in regenerative medicine

Electrospun fiber‐based immune engineering in regenerative medicine

Electrogelated drug-embedded silk/gelatin/rGO degradable electrode for anti-inflammatory applications in brain-implant systems

Gravito-electromagnetic perturbations of MOG black holes with a cosmological constant: quasinormal modes and ringdown waveforms

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