Yajun Zhao

Integrated microfluidic chip with an Ag2O:SnO2/SnS2 photoelectrochemical interface and a biothiol-responsive fluorescent probe for enrichment and phenotypic screening of circulating tumor cells

Jiuhong Li, Qiuyan Ding, Yajun Zhao, Jinyu Huang et autres

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Plasma-Activated Water as a Novel Irrigation Strategy for Seawater-Immersed Burn Wounds: Antibacterial Activity and Healing Promotion in Rats

Shanshan Wei, Ru Yang, Fang Tian, Zhuo Dai et autres

Objectives: Seawater-immersed burn wounds are highly susceptible to contamination, persistent inflammation, oxidative stress, and delayed healing, while current irrigation solutions remain suboptimal for such acute injuries. This study aimed to evaluate the therapeutic efficacy and underlying mechanisms of plasma-activated water (PAW) as …

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Low-temperature plasma efficiently promotes blood coagulation with less thermal injury in porcine models

Yufan Wei, Li Yu, Hongye Zheng, Boya Zhang et autres

How to maintain the efficacy of blood coagulation while minimizing thermal damage has been a significant challenge in the optimization of clinical electrosurgical units (ESUs). Recent studies have reported that reactive species produced by low-temperature plasma (LTP) can promote blood coagulation. In …

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Characterization of Battery‐Powered Portable Ar Plasma Jets Contacting Human Impedance Model and Its Safety Assessment for Direct Human Treatment

Yajun Zhao, Xu Zhang, Shiji Li, Yufan Wei et autres

ABSTRACT A portable Ar plasma jet (size: 347 × 300 × 145 mm, weight: 6 kg including the gas bottle) powered by a battery for direct human treatment is developed, and the discharge characteristics are investigated with the human equivalent circuit model …

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A hybrid magnetic reset design for the high voltage pulse generator based on forward circuit and magnetic superposition

Jinlong Guo, Yajun Zhao, Luhao Qi, Shiji Li et autres

Pulsed power technology has found widespread application in environmental governance, biomedicine, food processing, and other fields. This study proposes a pulse generator using forward topology and magnetic superposition to get high-voltage outputs. This design could adjust the pulse width in a relatively …

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Pulse power supply based on Marx-pulse transformer hybrid architecture with MOSFET-resistor-diode magnetic reset control method for dielectric barrier discharge application

Caiyong Zou, Yunfeng Jiang, Yajun Zhao, Shanshan Jin et autres

Nanosecond pulse power has many driving advantages in the dielectric barrier discharge (DBD) application field, including better discharge effect, higher discharge efficiency, and lower electrode temperature. A high-voltage pulse voltage power supply (HV-PVPS) with a multi-turn ratio linear pulse transformer (PT) based …

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Development of A Potable Inert Plasma Jet and Its Discharge Characteristic Study

Yajun Zhao, Xiaohan Zhang, Kunliang Qiu, Shuai Jin et autres

Inert plasma jets, which could generate a relatively long plasma plume with rich metastable reactive oxygen and nitrogen species (RONS), have been widely used in the plasma medicine field. However, the requirement of an externally supplied bottled inert gas restricts its widespread …

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High Isolation Voltage Auxiliary Power Supply Method with RC Resistor-capacitor Network for All-solid-state Marx Nanosecond Pulse Power Supply

Shaocong Jin, Zhi Ming Fang, Yajun Zhao

The High Voltage Parameter Editable Nanosecond Pulse Power Supply (HVPE-NPPS) plays a crucial and efficient role in the field of low-temperature plasma discharge applications, necessitating pulse parameter editability to ensure controllable discharge pulse power. This paper addresses the challenges faced by all-solid-state …

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Study on Evolution Patterns of Power Frequency Arc Discharges in Transformer Oil

Zhe Wang, C. Zhang, Kangli Wang, Yajun Zhao et autres

This study investigate the intricate evolution patterns of arc discharges and shock wave phenomena occurring in transformer oil under the influence of power frequency AC voltage. By conducting a series of experimental investigations specifically targeting arc discharges in transformer oil under power …

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Engineering a pyrene MOF composite photocatalyst toward the formation of carbon dioxide radical anions through regulating the charge transfer from type II to Z scheme via a chemical bond-modulated strategy

Xin Zhao, Yajun Zhao, Yuanpeng Li, Pengbo Lyu et autres

A new approach was reported for regulating the charge transfer mechanism in a pyrene-based MOF composite, transitioning from a type-II to a Z-scheme configuration.

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A 3D-printed fence-surface plasma source for skin treatment and its potential for personalized medical application

Yajun Zhao, Yuzhuang Liu, Zhiyan Liu, Xu Zhang et autres

Abstract A 3D-printed fence-surface electrode that has the potential for personalized medical application is fabricated in this study. The framework of the 3D-printed fence electrode could be any shape to fit the outline of the target. Here, the fence electrode with an …

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Optimization of A Self-integrating PCB Rogowski Coil for Discharge Plasma Current Detection

Shiji Li, Luhao Qi, Jinlong Guo, Yajun Zhao et autres

In this study, a self-integrating Rogowski current sensor based on a printed circuit board (PCB) was proposed for the characteristics of high change rate and relatively small amplitude of discharge plasma current driven by nanosecond pulses. According to the requirements of measurements …

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