Publications by authors named "Xiuyun Yang"

15 Publications

  • Page 1 of 1

Light-induced degradation of rhodamine B by tellurium quantum dots.

Water Sci Technol 2021 Feb;83(4):751-761

School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, 130022, China and Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry, Changchun University of Science and Technology, Changchun, 130022, China E-mail:

Tellurium quantum dots (Te QDs) were prepared using bulk tellurium as the precursor. Te QDs can be a highly active photocatalyst for boosting the photocatalytic degradation of rhodamine B (RhB) under visible light irradiation. The morphology and composition of Te QDs were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The results showed that in the presence of HO, the photocatalytic efficiency of Te QDs on RhB could achieve a good degradation effect within a very short time (30 min). The effects of initial dye concentration, pH value, light intensity, catalyst dosage and HO concentration on dye degradation were successively studied. The effects of inorganic ions (NO, Cl, SO, Ca, Mg and Fe) on photocatalytic degradation were also discussed. Experimental results of free radical capture showed that OH and O played important roles in photocatalytic degradation. More importantly, Te QDs efficiency still remained above 85% after four cycles of use, indicating good stability, recyclability and utility. This work may inspire further design of other semiconductor QDs for highly efficient dye degradation.
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http://dx.doi.org/10.2166/wst.2021.003DOI Listing
February 2021

Ultrathin two-dimensional polydopamine nanosheets for multiple free radical scavenging and wound healing.

Chem Commun (Camb) 2020 Sep;56(74):10875-10878

Jilin Collaborative Innovation Center for Antibody Engineering, Jilin Medical University, Jilin, 132013, China.

Novel 2D polydopamine nanosheets were successfully prepared by using a simple but effective "bottom-up" synthesis method. The ultrathin polydopamine nanosheets exhibit excellent multiple free radical scavenging activities including DPPH˙ and ABTS˙+ free radicals, especially O2˙-. Full-thickness skin defect regeneration was accelerated by treatment with the nanosheets.
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http://dx.doi.org/10.1039/d0cc02888fDOI Listing
September 2020

Association between provincial income levels and drug prices in China over the period 2010-2017.

Soc Sci Med 2020 10 5;263:113247. Epub 2020 Aug 5.

School of Economics and Finance, Xi'an Jiaotong University, Xi'an, China Address: 74 Yanta West Road, Xi'an, Postcode 710061, China. Electronic address:

In the past decade, the Chinese central government has made sweeping reforms to national pharmaceutical policies. However, provincial authorities have retained control over most drug procurement procedures, potentially leading to cross-province differences in drug prices. The objectives of this study were to (i) examine drug price trends in 31 Chinese provinces and municipalities between 2010 and 2017; (ii) evaluate the association between provincial income levels and drug prices over this period; and (iii) compare the results for Chinese state-owned, Chinese private, and multinational pharmaceutical firms. Using publicly available data on procurement prices of the drugs manufactured by the top 30 pharmaceutical firms in China (in terms of revenues), we ran a generalized country-product-dummy regression to compare drug prices across provinces over the study period. We conducted subgroup analyses to test for differences between types of firms. Between 2010 and 2017, drug prices decreased by an average of 23% across the country. The prices of drugs sold by multinational firms dropped by 32% over this period, while the prices of drugs sold by Chinese private firms declined by 28%. By contrast, the drug prices of state-owned firms went up by 11%. There were statistically significant positive associations between drug prices and provincial income levels for the full sample in 2010, 2011, and 2013. There were no significant associations in other years. Several low-income provinces paid higher procurement prices than some high-income provinces for identical medicines, especially in later study years. The lack of association between income levels and prices poses equity concerns and may place a heavier cost burden on the poor. It also suggests that China's pharmaceutical policies may be failing to balance the dual aims of drug affordability and incentives for innovation.
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http://dx.doi.org/10.1016/j.socscimed.2020.113247DOI Listing
October 2020

Phillygenin, a MELK Inhibitor, Inhibits Cell Survival and Epithelial-Mesenchymal Transition in Pancreatic Cancer Cells.

Onco Targets Ther 2020 3;13:2833-2842. Epub 2020 Apr 3.

Department of Cadre Health, Tongde Hospital of Zhejiang Province, Hangzhou 310012, Zhejiang, People's Republic of China.

Introduction: Pancreatic cancer (PC) is one of the leading causes of cancer, with the lowest 5-year survival rate of all cancer types. Given the fast metastasis of PC and its resistance to surgery, radiotherapy, chemotherapy, and combinations thereof, it is imperative to develop more effective anti-PC drugs. Phillygenin (PHI) has been reported to exert anti-cancer, anti-bacterial, and anti-inflammatory properties. However, the mechanism of PHI in the development of PC is still unclear.

Methods: The cytotoxicity of PHI in pancreatic cancer cells was evaluated by MTT assay, and clonogenic assay was used to test the anti-proliferation of PHI. The pro-apoptotic effect of PHI was detected by flow cytometry analysis. The changes of epithelial-mesenchymal transition (EMT) in pancreatic cancer cells treated with PHI were determined by Western blot. Transwell assay was used to test the migration and invasion of PC cells after treatment with PHI. Molecular docking was used to predict the potential binding site of candidate target with PHI.

Results: PHI could inhibit the proliferation, migration, and EMT of PC cells (PANC-1 and SW1990) and induce its apoptosis. Analysis of the Cancer Genome Atlas database indicated that elevated MELK levels correlated with poor overall survival (OS) and disease-free survival (DFS) of PC patients. In addition, molecular modeling showed that PHI may potentially target the catalytic domain of maternal embryonic leucine zipper kinase (MELK). Overexpression of MELK muted the anti-PC effects of PHI.

Conclusion: PHI holds promise as a potent candidate drug for the treatment of PC via targeted MELK.
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http://dx.doi.org/10.2147/OTT.S238958DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7138621PMC
April 2020

[Automatic Segmentation of Anatomical Areas in X-ray Images Based on Fully Convolutional Networks].

Zhongguo Yi Liao Qi Xie Za Zhi 2019 May;43(3):170-172

Modern Educational Technology Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, 271016.

Objective: Medical image segmentation is a key step in medical image processing. An architecture of fully convolutional networks was proposed to realize automatic segmentation of anatomical areas in X-ray images.

Methods: Enlightened by the advantages of convolutional neural networks on features extraction, fully convolutional networks consisting of 9 layers were designed to segment medical images. The networks used convolution kernels of various sizes to extract multi-dimensional image features in the images, meanwhile, eliminated pooling layers to avoid the loss of image details during downsampling procedures.

Results: The experiment was conducted in accordance with the specific scene of X-ray images segmentation. Compared with traditional segmentation methods, this approach achieved more accurate segmentation of anatomical areas.

Conclusions: Fully convolutional networks can extract representative and multidimensional features of medical images, avoid the loss of image details during downsampling procedures, and complete automatic segmentation of anatomical areas accurately in X-ray images.
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http://dx.doi.org/10.3969/j.issn.1671-7104.2019.03.004DOI Listing
May 2019

Synthesis and Near Infrared Luminescence Properties of a Series of Lanthanide Complexes with POSS Modified Ligands.

Molecules 2019 Mar 30;24(7). Epub 2019 Mar 30.

School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130000, China.

A polyhedral oligomeric silsesquioxanes (POSS) modified 8-hydroxyquinoline derivative (denoted as Q-POSS) was synthesized and used as a ligand to coordinate with lanthanide ions to obtain a series of lanthanide complexes Ln(Q-POSS)₃ (Ln = Er, Yb, Nd). The as-prepared lanthanide complexes have been characterized by FT-IR, UV⁻Vis, and elemental analysis. All these complexes showed the characteristic near-infrared (NIR) luminescence originated from the corresponding lanthanide ions under excitation. Compared with the unmodified counterparts LnQ₃ (HQ = 8-hydroxyquinoline), the Ln(Q-POSS)₃ complexes showed obviously increased emission intensity, which was ascribed mainly to the steric-hindrance effects of the POSS moiety in the ligands. It is believed that the POSS group could suppress undesired excimer formation and intermolecular aggregation, thus decreasing the concentration quenching effect of the corresponding lanthanide complexes.
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http://dx.doi.org/10.3390/molecules24071253DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6480010PMC
March 2019

[Using Parallel Convolutional Neural Networks for Treatment Position Recognition in X-ray Images].

Zhongguo Yi Liao Qi Xie Za Zhi 2018 Feb;42(2):92-94

Taishan Medical University, Tai'an, 271016.

Treatment position recognition in medical images is a key technique in medical image processing. Due to the excellent performance of convolutional neural networks on features extraction and classification, an architecture of parallel convolutional neural networks is proposed to recognize treatment positions in X-ray images, which uses convolution kernels of different sizes to extract local features of different sizes in these images. The experimental analysis shows that parallel convolution neural networks, which can extract representative image features with more dimensions, are competent to classify and recognize treatment positions in medical images.
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http://dx.doi.org/10.3969/j.issn.1671-7104.2018.02.004DOI Listing
February 2018

[Efficacy and safety of simulated artificial pancreas in modulating stress hyperglycemia in critically ill patients: a prospective randomized controlled study].

Zhonghua Wei Zhong Bing Ji Jiu Yi Xue 2018 Feb;30(2):165-169

Department of Neurosurgical Intensive Care Unit, Shanghai Punan Hospital of Pudong New District, Shanghai 200125, China (Yang ZL, Tao GQ, Guo MF, Sun BL); Department of Neurosurgery, Shanghai Punan Hospital of Pudong New District, Shanghai 200125, China (Gong L, Ding Y, Ye SM, Liu WD); Department of Gerotology, Tongde Hospital of Zhejiang Province, Hangzhou 310012, Zhejiang, China (Yang XY). Corresponding author: Yang Xiuyun, Email:

Objective: To explore efficacy and safety of simulated artificial pancreas in modulating stress hyperglycemia in critically ill patients.

Methods: A prospective randomized controlled study was performed. Seventy-two critically ill patients with stress hyperglycemia, aged 18-85 years, acute physiology and chronic health evaluation II (APACHE II) score over 15, two consecutive random blood glucose 11.1 mmol/L or higher, glycated hemoglobin (HbA) below 0.065, unable to eat food for 3 days after inclusion, or only accepting parenteral nutrition, admitted to intensive care unit (ICU) in Shanghai Punan Hospital of Pudong New District from January 1st, 2015 to June 30th, 2017 were enrolled. The patients were divided into three groups according to the random number table method, high-intensity group and low-intensity group were injected Novolin R (high-intensity group 2/3 dosage, low-intensity group 1/3 dosage) to modulate stress hyperglycemia by simulated artificial pancreas. Simulated artificial pancreas consisted of Guardian real time glucose monitoring system (GRT system), close-circle control algorithm and micro-pump; subcutaneous injection of Humulin 70/30 was applied to modulate stress hyperglycemia in humulin group. Real-time glucose levels of interstitial fluid in abdominal wall, equivalent to blood glucose levels, 10 minutes each time, were monitored by using of GRT system for all patients in three groups. Fasting serum levels of stress hormones including epinephrine and cortisol and insulin resistance index (IRI) were recorded within 24 hours after inclusion. Mean blood glucose, blood glucose variation coefficient, blood glucose target-reaching rate, blood glucose target-reaching time, hypoglycemia rate and 6-month mortality were measured. Twenty healthy adults from health administration department of the hospital were recruited as healthy control group.

Results: A total of 60 eligible critically ill patients were included in this study, each group with 20 patients. There was no significant difference in gender, age, APACHE II scores among three groups. The levels of serum epinephrine, cortisol and IRI within 24 hours after inclusion in the three groups were significantly higher than those in healthy control group. The mean blood glucose levels of humulin group, low-intensity group, high-intensity group were decreased (mmol/L: 10.2±3.2, 8.4±2.6, 8.1±2.2), the blood glucose target-reaching rate were increased [40.2% (3 295/8 196), 71.1% (5 393/7 585), 80.4% (6 286/7 818)], the blood glucose target-reaching time were shortened (hours: 49.1±5.8, 24.6±4.6, 17.5±4.2), the hypoglycemia rates were increased respectively [1.3% (108/8 196), 2.8% (211/7 585), 4.0% (313/7 818)], with statistically significant differences (all P = 0.000). There was no significant difference in blood glucose variation coefficient and 6-month mortality among three groups [blood glucose variation coefficient: (29.4±3.7)%, (28.5±5.3)%, (26.1±4.6)%, 6-month mortality: 55.0%, 45.0%, 40.0%, all P > 0.05].

Conclusions: Simulated artificial pancreas could effectively and safely modulate stress hyperglycemia in critically ill patients, high-intensity modulation could bring about better efficacy in the regulation of hyperglycemia. High-frequency blood glucose monitoring by using GRT system could promptly identify hypoglycemia and help it to be corrected.
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http://dx.doi.org/10.3760/cma.j.issn.2095-4352.2018.02.014DOI Listing
February 2018

Polyphosphoric acid-induced perylene probe self-assembly and label-free fluorescence turn-on detection of alkaline phosphatase.

Anal Bioanal Chem 2017 Feb 12;409(4):1031-1036. Epub 2016 Nov 12.

State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.

A label-free fluorescence turn-on strategy for alkaline phosphatase (ALP) detection was established based on its enzymatic catalyzed hydrolysis of polyphosphoric acid (PPA, an anionic polymer) that had been utilized for aggregation with our homemade positively charged perylene derivative (Probe-1) via noncovalent interactions. The disaggregation caused turn-on fluorescence signal which was recovered by the released Proble-1 molecules whose original strong fluorescence in an aqueous buffer solution had been quenched due to their previous aggregation induced by PPA. Such method presents its great advantages of free labeling, convenience and simplicity, cost effectiveness, high selectivity, and high sensitivity, with a detection limit of 0.5 mU/mL of ALP. Graphical Abstract A label-free fluorescence turn-on strategy for alkaline phosphatase based on its enzymatic catalyzed hydrolysis of polyphosphoric acid that had been utilized for aggregation with our homemade positively charged perylene derivative via noncovalent interactions.
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http://dx.doi.org/10.1007/s00216-016-0017-8DOI Listing
February 2017

Screening and identification of potential biomarkers and establishment of the diagnostic serum proteomic model for the Traditional Chinese Medicine Syndromes of tuberculosis.

J Ethnopharmacol 2014 Sep 26;155(2):1322-31. Epub 2014 Jul 26.

Institute of Cell Biology, Zhejiang University, 388, Yuhangtang Road, Hangzhou 310058, PR China. Electronic address:

Ethnopharmacological Relevance: Chemotherapy is the mainstay of modern tuberculosis (TB) control. Traditional Chinese Medicine (TCM) can enhance the effect of anti-TB drug, promote the absorption of the foci in the lung and reduce drug toxicity. In TCM, the determination of treatment is based on ZHENG (also called TCM syndrome). To establish a diagnostic model by using proteomics technology in order to identify potential biomarkers for TCM syndromes of TB.

Materials And Methods: The surface-enhanced laser desorption ionization time of flight mass spectrometer (SELDI-TOF MS) combined with weak cation exchange (WCX) magnetic beads was used to screen serum samples from 71 cases of deficiency of lung yin syndrome (DLYS), 64 cases of fire (yang) excess yin deficiency syndrome (FEYDS) and 45 cases of deficiency of both qi and yin syndrome (DQYS). A classification model was established by Biomarker Pattern Software (BPS). Candidate protein biomarkers were purified by reverse phase-high performance liquid chromatograph (RP-HPLC), identified by MALDI-TOF MS, LC-MS/MS and validated by ProteinChip Immunoassays.

Results: A total of 74 discriminating m/z peaks (P<0.001) among three TCM syndromes of TB were detected. A diagnostic model for the TCM syndrome of TB based on the five biomarkers (3961.7, 4679.7, 5646.4, 8891.2 and 9416.7 m/z) was established which could discriminate DLYS, FEYDS and DQYS patients with an accuracy of 74.0%, 72.5%, and 96.7%, respectively. The candidate biomarker with m/z of 9416.7 was identified as a fragment of apolipoprotein C-III (apoC-III) by MALDI-TOF-MS and LC-MS/MS.

Conclusion: The TCM syndrome diagnostic model of TB could successfully distinguish the three TCM syndromes of TB patients. This provided a biological basis for the determination of treatment based on different TCM syndromes of TB. ApoC-III was identified as a potential biomarker for TCM syndromes of TB and revealed the biochemical basis and pathogenesis of TCM syndromes in TB.
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http://dx.doi.org/10.1016/j.jep.2014.07.025DOI Listing
September 2014

Screening and identification of six serum microRNAs as novel potential combination biomarkers for pulmonary tuberculosis diagnosis.

PLoS One 2013 5;8(12):e81076. Epub 2013 Dec 5.

Institute of Cell Biology, Zhejiang University, Hangzhou, China.

Background: It is very difficult to prevent pulmonary tuberculosis (TB) due to the lack of specific and diagnostic markers, which could lead to a high incidence of pulmonary TB. We screened the differentially expressed serum microRNAs (miRNAs) as potential biomarkers for the diagnosis of pulmonary TB.

Methods: In this study, serum miRNAs were screened using the Solexa sequencing method as the potential biomarkers for the diagnosis of pulmonary TB. The stem-loop quantitative reverse-transcription polymerase chain reaction (qRT-PCR) assay was used to verify differentially expressed serum miRNAs. The receiver operating characteristic (ROC) curve and logistic regression model were used to analyze the sensitivity and specificity of the single miRNA and a combination of miRNAs for diagnosis, respectively. Using the predicted target genes, we constructed the regulatory networks of miRNAs and genes that were related to pulmonary TB.

Results: The Solexa sequencing data showed that 91 serum miRNAs were differentially expressed in pulmonary TB patients, compared to healthy controls. Following qRT-PCR confirmation, six serum miRNAs (hsa-miR-378, hsa-miR-483-5p, hsa-miR-22, hsa-miR-29c, hsa-miR-101 and hsa-miR-320b) showed significant difference among pulmonary TB patients, healthy controls (P<0.001) and differential diagnosis groups (including patients with pneumonia, lung cancer and chronic obstructive pulmonary disease) (P<0.05). The logistic regression analysis of a combination of six serum miRNAs revealed that the sensitivity and the specificity of TB diagnosis were 95.0% and 91.8% respectively. The miRNAs-gene regulatory networks revealed that several miRNAs may regulate some target genes involved in immune pathways and participate in the pathogenesis of pulmonary TB.

Conclusion: Our study suggests that a combination of six serum miRNAs have great potential to serve as non-invasive biomarkers of pulmonary TB.
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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0081076PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3857778PMC
September 2014

The discovery and identification of a candidate proteomic biomarker of active tuberculosis.

BMC Infect Dis 2013 Oct 29;13:506. Epub 2013 Oct 29.

Institute of Cell Biology, Zhejiang University School of Medicine, 388, Yuhangtang Road, Hangzhou 310058, P,R, China.

Background: Noninvasive and convenient biomarkers for early diagnosis of tuberculosis (TB) remain an urgent need. The aim of this study was to discover and identify potential biomarkers specific for TB.

Methods: The surface-enhanced laser desorption ionization time of flight mass spectrometry (SELDI-TOF MS) combined with weak cation exchange (WCX) magnetic beads was used to screen serum samples from 180 cases of TB and 211 control subjects. A classification model was established by Biomarker Pattern Software (BPS). Candidate protein biomarkers were purified by reverse phase-high performance liquid chromatography (RP-HPLC), identified by MALDI-TOF MS, LC-MS/MS and validated using enzyme-linked immunosorbent assay (ELISA).

Results: A total of 35 discriminating m/z peaks were detected that were related to TB (P < 0.01). The model of biomarkers based on the four biomarkers (2554.6, 4824.4, 5325.7, and 8606.8 Da) was established which could distinguish TB from controls with the sensitivity of 83.3% and the specificity of 84.2%. The candidate biomarker with m/z of 2554.6 Da was found to be up-regulated in TB patients, and was identified as a fragment of fibrinogen, alpha polypeptide isoform alpha-E preproprotein. Analysis in 22 patients with TB showed increased fibrinogen degradation product (FDP) (5,005 ± 1,297 vs. 4,010 ± 1,181 ng/mL, P < 0.05) and in 142 patients showed elevated plasma fibrinogen levels.

Conclusions: A diagnostic model for TB with high sensitivity and specificity was developed using mass spectrometry combined with magnetic beads. Fibrinogen was identified as a potential biomarker for TB and showed diagnostic values in clinical application.
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http://dx.doi.org/10.1186/1471-2334-13-506DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3870977PMC
October 2013

Toll-like receptor -1, -2, and -6 polymorphisms and pulmonary tuberculosis susceptibility: a systematic review and meta-analysis.

PLoS One 2013 14;8(5):e63357. Epub 2013 May 14.

Institute of Cell Biology, Zhejiang University, Hangzhou, Zhejiang, China.

Background: A large number of studies have investigated whether polymorphisms in the Toll-like receptor (TLR) genes are implicated in susceptibility to tuberculosis (TB) in different populations. However, the results are inconsistent and inconclusive.

Methods: A literature search was conducted using the PubMed, EMBASE, Medline (Ovid), ISI Web of Knowledge and Chinese National Knowledge Infrastructure (CNKI). A meta-analysis on the associations between the TLR1 G1805T, TLR2 T597C, T1350C, G2258A, and TLR6 C745T polymorphisms and TB risk was carried out by comparison using different genetic models.

Results: In total, 16 studies from 14 articles were included in this review. In meta-analysis, significant associations were observed between the TLR2 2258AA (AA vs. AG+AG, OR 5.82, 95% CI 1.30-26.16, P = 0.02) and TLR6 745TT (TT vs. CT+CC, OR 0.61, 95% CI 0.39-0.97, P = 0.04) polymorphisms and TB risk. In the subgroup analysis by ethnicity, Africans and American Hispanic subjects with the TLR1 1805T allele had an increased susceptibility, whereas Asian and European subjects with the TLR2 2258A allele had an increased susceptibility to TB.

Conclusions: The meta-analysis indicated that TLR2 G2258A is associated with increased TB risk, especially in Asians and Europeans. TLR1 G1805T is associated with increased TB in Africans and American Hispanics. TLR6 C745T is associated with decreased TB risk. Our systematic review and meta-analysis reported an interesting preliminary conclusion, but this must be validated by future large-scale and functional studies in different populations.
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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0063357PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3653945PMC
December 2013

Synthesis of a hierarchical three-component nanocomposite structure system with enhanced electrocatalytic and photoelectrical properties.

Chemistry 2012 Apr 13;18(17):5248-55. Epub 2012 Mar 13.

School of Chemical and Environmental Engineering, Changchun University of Science and Technology, Changchun, Lijin, 130022 P.R. China.

Effective control over the morphology and size of Pd/Pt nanoparticles is currently of immense interest because their electronic, optical, and catalytic properties are superior to pure platinum nanoparticles. However, control over the nanoparticle shape is still challenging. Therefore, a novel design and synthetic route needs to be developed to obtain a high-performance catalyst. Herein, a hierarchical three-component nanocomposite structure system (HTNSS) composed of graphene, TiO(2), and [email protected] core-shell nanoparticles was designed and synthesized by a sequential strategy that focuses on constructing the monolithic structure rather than limited single-component counterparts. The resulting composites were characterized by various techniques, which showed that the [email protected] core-shell nanoparticles were preferentially deposited on the peripheral interface of the graphene and TiO(2) nanoparticles. The photoelectrical and catalytic performances were obviously improved relative to the commercially available E-TEK Pt/C owing to their synergistic effect.
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http://dx.doi.org/10.1002/chem.201102512DOI Listing
April 2012

A novel detection technique of hydrazine hydrate: modality change of hydrogen bonding-induced rapid and ultrasensitive colorimetric assay.

Chem Commun (Camb) 2011 Dec 3;47(48):12816-8. Epub 2011 Nov 3.

School of Chemical & Environmental Engineering, Changchun University of Science and Technology, Changchun, 130022, China.

Ultrasensitive visual detection of hydrazine hydrate using a Au nanoparticles-based colorimetric sensing system (ANCSS) is reported for the first time, which is based on the hydrogen bonding recognition and the modality change of hydrogen bonding from "linear" (simple hydrogen bond interactions) to "nonlinear" (a complicated hydrogen bond network) between as-modified Au nanoparticles (Au NPs).
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http://dx.doi.org/10.1039/c1cc15833cDOI Listing
December 2011