Publications by authors named "Zhuang Du"

6 Publications

  • Page 1 of 1

δ-MnO changed the structure of humic-like acid during co-composting of chicken manure and rice straw.

Waste Manag 2021 Jun 3;128:16-24. Epub 2021 May 3.

College of Life Science, Northeast Agricultural University, Harbin 150030, China.

Improving the structure and quantity of humus is important to reduce agriculture organic waste by composting. The present study was aimed to assess the role of δ-MnO on humus fractions formation during co-composting of chicken manure and rice straw. Two tests (control group (CK), the addition of δ-MnO (M)) were carried out. The results showed that organic matter content decreased by 34% and 29% at M and CK, suggesting the process of organic waste disposal was accelerated by adding δ-MnO. The structures and quantity of fulvic acid (FA) and humic acid (HA) (as the main fractions of humus) were investigated. The δ-MnO had no significant effect on improving the concentration of FA and HA (p > 0.05). However, the addition of δ-MnO caused different effects on the FA and HA structure. The humification degree of FA improved, while bioavailability of HA increased through adding δ-MnO. The addition of δ-MnO rephased the bacterial community structure, slowing down the succession rate of the bacterial community in M composting. After adding δ-MnO the structural equation modeling results showed that environmental factors could directly drive changes in FA and HA by modulating the bacterial community. Furthermore, the role of FA and HA in the soil amendment was also demonstrated. Therefore, the addition of MnO might be promising for agriculture organic waste treatment and environmental repair during composting.
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http://dx.doi.org/10.1016/j.wasman.2021.04.039DOI Listing
June 2021

Colorimetric identification of miRNA-195 sequence for diagnosing osteosarcoma.

Biotechnol Appl Biochem 2021 Apr 21. Epub 2021 Apr 21.

The second Department of Orthopedics, The First Hospital of Jilin University, Changchun, China.

Improving biosensing performance is mandatory for biomolecular recognition and disease identification. Gold nanoparticle (GNP)-based colorimetric assay is the easy and cost-effective identification method by a naked eye detection. In this research, osteosarcoma biomarker (miRNA-195) was identified by citrate-capped GNP-colorimetric assay. As salt-induced aggregation was used to observe the color changes of GNP, sodium chloride (NaCl) and capture DNA were optimized as 50 mM and ∼20 pmol, respectively. The capture DNA only on GNP could not stabilize under high NaCl, and the color of GNP turned into purple. At the same time, when capture DNA was hybridized with target, the condition can stabilize the GNP under higher NaCl, which retains the GNP color as red. This simple assay reaches the limit of detection of target miRNA-195 as ∼40 fmol. Control experiments with noncomplementary DNA turned the solution into purple, indicating the specific detection of target. The mixture of target in diluted serum retains the color of the GNP solution to be red, indicating the selective detection of target DNA. This simple assay helps to quantify the level of miRNA-195 target DNA and to diagnose the osteosarcoma.
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http://dx.doi.org/10.1002/bab.2169DOI Listing
April 2021

Frequency division denoising algorithm based on VIF adaptive 2D-VMD ultrasound image.

PLoS One 2021 10;16(3):e0248146. Epub 2021 Mar 10.

School of Mechanical Engineering, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia, China.

Ultrasound imaging has developed into an indispensable imaging technology in medical diagnosis and treatment applications due to its unique advantages, such as safety, affordability, and convenience. With the development of data information acquisition technology, ultrasound imaging is increasingly susceptible to speckle noise, which leads to defects, such as low resolution, poor contrast, spots, and shadows, which affect the accuracy of physician analysis and diagnosis. To solve this problem, we proposed a frequency division denoising algorithm combining transform domain and spatial domain. First, the ultrasound image was decomposed into a series of sub-modal images using 2D variational mode decomposition (2D-VMD), and adaptively determined 2D-VMD parameter K value based on visual information fidelity (VIF) criterion. Then, an anisotropic diffusion filter was used to denoise low-frequency sub-modal images, and a 3D block matching algorithm (BM3D) was used to reduce noise for high-frequency images with high noise. Finally, each sub-modal image was reconstructed after processing to obtain the denoised ultrasound image. In the comparative experiments of synthetic, simulation, and real images, the performance of this method was quantitatively evaluated. Various results show that the ability of this algorithm in denoising and maintaining structural details is significantly better than that of other algorithms.
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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0248146PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7946199PMC
March 2021

Regenerated keratin-encapsulated gold nanorods for chemo-photothermal synergistic therapy.

Mater Sci Eng C Mater Biol Appl 2020 Dec 11;117:111340. Epub 2020 Aug 11.

Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, Donghua University, Shanghai 201620, China; College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China. Electronic address:

Gold nanorods (AuNRs) have been widely applied to photothermal therapy against cancer. However, the chemically synthesized AuNRs such as that via seed-mediate method usually demonstrated a high cytotoxicity due to the existence of cetyltrimethylammonium bromide (CTAB) coating. In this work, keratin, a family of cysteine-rich structural fibrous proteins was used for the first time to encapsulate AuNRs by a simple mixing method. Compared with CTAB-AuNRs, the keratin-encapsulated AuNRs ([email protected]) showed an improved colloid stability and good biocompatibility including low cytotoxicity and hemolytic effect. Moreover, [email protected] exhibited great potential as drug carriers with redox-responsive drug release behavior, due to the high concentration of disulfide crosslinking in keratin coating, and the DOX-loaded [email protected] demonstrated higher chemo-photothermal synergistic therapy efficiency against 4T1 cells compared with either free DOX or [email protected] alone, suggesting a promising nanoplatform for cancer therapy.
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http://dx.doi.org/10.1016/j.msec.2020.111340DOI Listing
December 2020

Determination of the food dye indigotine in cream by near-infrared spectroscopy technology combined with random forest model.

Spectrochim Acta A Mol Biomol Spectrosc 2020 Feb 10;227:117551. Epub 2019 Oct 10.

School of Computer Science & Engineering, Wuhan Institute of Technology, Wuhan, 430205, China.

Artificial pigment is a common food additive in cream products. If added in excess, it will do harm to human body. At present, there is no research on the detection of cream pigment by Near Infrared (NIR) spectroscopy. In this paper, a method based on random forest was applied to determine the indigotine in cream. Weighting in the experiments was accomplished using analytical balances with precision as low as 0.0001 g. The NIR spectra data of cream with different concentration of indigotine were recorded. The original spectra was pretreated by SG smoothing, mean centering and second derivative. Random forest was applied to establish a quantitative analysis model for cream pigment content, and multiple evaluation criteria were selected to comprehensively evaluate the model. The R was 0.9402, RMSEP was 0.2509 and RPD was 4.0893. Consequently, NIR spectroscopy, combined with data pretreatments and random forest model, was confirmed to be an interesting tool for non-destructive evaluation of pigment content in cream.
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http://dx.doi.org/10.1016/j.saa.2019.117551DOI Listing
February 2020

SnS hollow nanofibers as anode materials for sodium-ion batteries with high capacity and ultra-long cycling stability.

Chem Commun (Camb) 2019 Jan;55(4):505-508

Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China.

In this study, a novel anode material of SnS hollow nanofibers (SnS HNFs) was rationally synthesized by a facile process and demonstrated to be a promising anode candidate for sodium-ion batteries. The synergetic effect of unique hollow and porous microstructures of SnS HNFs led to high capacity and ultra-long cycling stability.
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http://dx.doi.org/10.1039/c8cc07332eDOI Listing
January 2019