Publications by authors named "Changxin Huangfu"

Article Synopsis
  • The study focuses on a newly developed silver-loaded paper-based colorimetric sensor array that detects and differentiates five common aldehyde gases, which are harmful VOCs linked to health risks.
  • The sensor utilizes immobilized silver ions and complexing agents to enhance stability and resistance to humidity, ensuring it has excellent selectivity and anti-interference capabilities.
  • With impressive sensitivity, the sensor can detect low concentrations of aldehyde gases, all below permissible exposure limits, and it provides unique colorimetric responses for each type of gas, making it a promising tool for monitoring air quality.
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Carbonized polymer dots (CPDs) have shown exceptional potential across a wide range of applications. However, their practical utilization is significantly greatly impeded by the lack of precise control over their structures and functionalities. Consequently, the development of controlled synthesis strategies for CPDs with well-defined structures and tailored functionalities remains a critical challenge in the field.

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Paper-based optical sensors have emerged as a promising technology for pesticide detection and attracted extensive attention. However, in practical analytical applications, it may suffer from limited sensitivity with traditional signal amplification strategies. Here, we developed a novel mesoporous silica-modified paper-based sensor for a sensitive capture and analysis of the pesticide paraquat.

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Ochratoxin A (OTA) has been classified as a possible human carcinogen and accurate monitoring of OTA is crucial for avoiding the contaminant risk. Herein, a sensitive biosensor for OTA detection was reported. This biosensor achieved a lower detection limit of 0.

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High-cost viral nucleic acid detection devices (e.g., qPCR system) are limited resources for developing counties and rural areas, leading to underdiagnosis or even pandemics of viral infectious diseases.

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Dicofol is an organochlorine pesticide, which is widely used in fruits, tea and other crops, and is moderately toxic to humans. Therefore, the monitoring of organochlorine pesticide-dicofol is critical for food safety. In this work, a fluorometric chemosensor based on mercaptoethanol and boron dipyrromethene (BODIPY) was first constructed to detect the dicofol.

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While a number of highly luminescent copper(I) halide based hybrid materials built on coordinate bonds (Cu-L; L = N, P, S-based ligands) have been obtained, the poor structural stability largely limited their commercialization. In contrast, according to the previous studies, the ionic structures (L-free) are more stable than those built on Cu-L coordinate bonds. However, the extremely weak emission hinders their optical applications.

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The effect of the surface topography on protein adsorption process is of great significance for designing hydroxyapatite (HA) ceramic material surfaces. In this work, three different topographies of HA materials HA-sheet, HA-rod, and HA-whisker were synthesized and testified by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), Brunauer-Emmett-Teller (BET) and a field emission scanning electron microscopy (FE-SEM). We have systematically investigated the adsorption kinetics and thermodynamics of bone morphogenetic proteins (BMP-2) on the three different topography surfaces of HA, respectively.

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Combinatorial chemistry, high-throughput and virtual screening technologies have been extensively used for discovering agrochemical leads from chemical libraries. The knowledge of the physicochemical properties of the marketed agrochemicals is useful for guiding the design and selection of such libraries. Since the earlier profiling of marketed agrochemicals, the number and types of marketed agrochemicals have significantly increased.

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