Publications by authors named "Junru Yuan"

A new phenanthroline derivative bearing imidazole group, (2-(3,5-di(pyridin-4-yl)phenyl)-1-p-tolyl-1H-imidazo[4,5-f][1,10]phenanthroline) (1), has been devised. 1 can be used as a multifunctional probe exhibiting a highly sensitive colorimetric response to Fe2+ and a selectively ratiometric fluorescent response to Zn2+ in a buffer-ethanol solution. The absorption enhancement accompanied by a visual color change from colorless to red upon addition of Fe2+, makes 1 a suitable naked-eye sensor for Fe2+.

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Article Synopsis
  • The optoacoustic transducer is gaining recognition in medical ultrasound applications, specifically for its potential in diagnostics and treatments, despite concerns over laser-induced damage.
  • A theoretical model was developed to understand the nature of laser-induced damage in a carbon nanotubes-polydimethylsiloxane (CNT-PDMS) composite transducer, revealing that the damage is primarily due to thermal ablation.
  • Experimental results support the theoretical findings, indicating that the transducer operates stably for extended periods when laser energy density is kept below a specific threshold.
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The measurement of bladder volume is crucial for the diagnosis and treatment of urinary system diseases. Ultrasound imaging, with its non-invasive, radiation-free, and repeatable scanning capabilities, has become the preferred method for measuring residual urine volume. Nevertheless, it still faces some challenges, including complex imaging methods leading to longer measurement times and lower spatial resolution.

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Compared with traditional piezoelectric ultrasonic devices, optoacoustic devices have unique advantages such as a simple preparation process, anti-electromagnetic interference, and wireless long-distance power supply. However, current optoacoustic devices remain limited due to a low damage threshold and energy conversion efficiency, which seriously hinder their widespread applications. In this study, using a self-healing polydimethylsiloxane (PDMS, Fe-Hpdca-PDMS) and carbon nanotube composite, a flexible optoacoustic patch is developed, which possesses the self-healing capability at room temperature, and can even recover from damage induced by cutting or laser irradiation.

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Article Synopsis
  • The article has been withdrawn at the request of the author(s) or editor.
  • The Publisher expresses apologies for any inconvenience this may cause.
  • Detailed information about Elsevier's policy on article withdrawal is available on their website.
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