Publications by authors named "Kanglong Chen"

This article demonstrates a simple, efficient, and low-cost gas detection method for gases with absorption peaks in the terahertz range. A modes-adjustable Fabry-Pérot cavity is designed. By adjusting the length of the cavity, the center resonant frequency of the cavity can be coupled to the gas absorption peak.

View Article and Find Full Text PDF
Article Synopsis
  • * This study introduces a new biosensor chip made of metamaterials and a protective cavity that mimics the liquid environment of living cells, allowing for safer and more accurate detection of cells.
  • * Experimental results indicate that the biosensor can effectively identify glioma cells and distinguish them from neurons, showing a resonance frequency difference of around 30 GHz at a concentration of ~5200 cells/cm, which aligns with other testing methods.
View Article and Find Full Text PDF

A special data processing method for the terahertz frequency domain reflection spectroscopy system has been proposed to analyze the characteristics of a polar mixed liquid. This novel and practical measurement system is characterized by a simpler optical structure and a tunable output frequency range of 0.1-1 THz.

View Article and Find Full Text PDF

Fast, simple, and label-free detections and distinctions are desirable in cell biology analysis and diagnosis. Here, a biosensor based on terahertz metamaterial has luxuriant gaps, which can excite dipole resonance is designed. Filling the gaps with various analytes can change the biosensor's capacitance resulting in electromagnetic properties changing.

View Article and Find Full Text PDF

In this paper, an Asymmetric Electric Split-Ring Resonator (AESRR) metamaterial structure is proposed to explore the interaction between metamaterials and electromagnetic waves with the influence of Fano resonance on electromagnetic properties. With the symmetry of basic electric Split-Ring Resonator (eSRR) being broken, a new Fano resonant peak appears at around 11.575 GHz and this peak is very sensitive to the dielectric environment.

View Article and Find Full Text PDF

This paper describes a low-cost, small size, and high-sensitivity microwave sensor using a Complementary Circular Spiral Resonator (CCSR), which operates at around 2.4 GHz, for identifying liquid samples and determining their dielectric constants. The proposed sensor was fabricated and tested to effectively identify different liquids commonly used in daily life and determine the concentrations of various ethanol⁻water mixtures at by measuring the resonant frequency of the CCSR.

View Article and Find Full Text PDF

The high toxicity, poor stability, premature drug release, and lack of intracellular stimuli responsibility of current polymeric micelles still hinder them for potential clinical applications. To address these challenges, a novel type of multi-stimuli responsive, core cross-linked polypeptide hybrid micelles (CCMs) was developed for triggered anticancer drug delivery in tumor microenvironment. The CCMs was prepared via free radical copolymerization by using N,N'-methylene-bis-acylamide (BACy) as the cross-linking agent, 2,2-azobisisobutyronitrile (AIBN) as the initiator, where poly (γ-benzyl-L-glutamate) (PBLG) and N-isopropylacrylamide (NIPPAM) as comonomers.

View Article and Find Full Text PDF

A multiple-stimuli-responsive drug-conjugated cross-linked micelles was prepared by radical copolymerization. The chemical structure, morphology, and size of the cross-linked micelles were characterized, and the drug loading of the micelle was calculated. The experimental results indicated that the hydrodynamic size of the drug-loaded micelles were about 100 nm, and the as prepared micelles could be degraded and swelled in presence of reducing glutathione (GSH).

View Article and Find Full Text PDF