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Wang XH, Dong Q, Ying LL, Chi SS, Lan YH, Huang YP, Liu ZS. Enhancement of selective separation on molecularly imprinted monolith by molecular crowding agent. Anal Bioanal Chem 2016; 409:201-211. [DOI: 10.1007/s00216-016-9986-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 08/30/2016] [Accepted: 09/27/2016] [Indexed: 10/25/2022]
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52
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Zhang LS, Du PY, Gu W, Zhao QL, Huang YP, Liu ZS. Monolithic column incorporated with lanthanide metal-organic framework for capillary electrochromatography. J Chromatogr A 2016; 1461:171-8. [DOI: 10.1016/j.chroma.2016.07.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 07/01/2016] [Accepted: 07/05/2016] [Indexed: 10/21/2022]
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53
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Zhang J, Li F, Wang XH, Xu D, Huang YP, Liu ZS. Preparation and characterization of dual-template molecularly imprinted monolith with metal ion as pivot. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.05.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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54
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Zhang LS, Gao SP, Huang YP, Liu ZS. Green synthesis of polymer monoliths incorporated with carbon nanotubes in room temperature ionic liquid and deep eutectic solvents. Talanta 2016; 154:335-40. [DOI: 10.1016/j.talanta.2016.03.088] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 03/20/2016] [Accepted: 03/28/2016] [Indexed: 10/22/2022]
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55
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Luo R, Feng XL, Luo X, Liu ZS, Hu PW, Liu S, Li XL. [Association between β-arrestin2 genetic polymorphism and response to methadone maintenance treatment in heroin-dependent patients in Han population in Hunan province]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2016; 37:872-5. [PMID: 27346119 DOI: 10.3760/cma.j.issn.0254-6450.2016.06.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To study the distributions of three single nucleotide polymorphisms (SNPs) in β-arrestin2 (ARRB2) which including rs3786047, rs1045280 and rs2036657 and to elucidate the relationship between these SNPs and response to methadone maintenance treatment (MMT) among heroin-dependent patients of Han ethnicity population in Hunan. METHODS Han MMT patients were recruited in four random-chosen MMT clinics from Hunan province. Demographics, history of drug-use and MMT were recorded. ARRB2 SNPs were genotyped to determine the association between SNPs and response to MMT. RESULTS Distributions of the three SNPs were in Hardy-Weinberg equilibrium in both groups (responders vs. non-responders). There was no statistical significance in the distribution frequency of genotype on rs3786047 (χ(2)=0.486 2, P=0.784), rs1045280 (χ(2)=1.591 9, P=0.451) and rs2036657 (χ(2)=1.061 5, P=0.588) in ARRB2 among the responders or the non-responders. CONCLUSION Associations between the ARRB2 genotypes, rs3786047, rs1045280 and rs2036657, and MMT response in Han MMT patients in Hunan province did not appear.
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Yang J, Zhao DG, Jiang DS, Chen P, Liu ZS, Zhu JJ, Li XJ, He XG, Liu JP, Zhang LQ, Yang H, Zhang YT, Du GT. Emission efficiency enhanced by reducing the concentration of residual carbon impurities in InGaN/GaN multiple quantum well light emitting diodes. OPTICS EXPRESS 2016; 24:13824-13831. [PMID: 27410545 DOI: 10.1364/oe.24.013824] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A series of samples with varying growth pressure are grown and their optical and structural properties are investigated. It is found that the residual carbon concentration decreases when the reactor pressure increases from 80 to 450 Torr during the InGaN/GaN multiple quantum well growth. It results in an enhanced peak intensity of electroluminescence because carbon impurities can induce deep energy levels and act as non-radiative recombination centers in InGaN layers.
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Sun GY, Wang C, Luo YQ, Zhao YX, Yang J, Liu ZS, Aisa HA. Cost-effective imprinting combining macromolecular crowding and a dummy template for the fast purification of punicalagin from pomegranate husk extract. J Sep Sci 2016; 39:1963-70. [DOI: 10.1002/jssc.201600165] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Revised: 03/12/2016] [Accepted: 03/13/2016] [Indexed: 12/26/2022]
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Zhao QL, Zhou J, Zhang LS, Huang YP, Liu ZS. Coatings of molecularly imprinted polymers based on polyhedral oligomeric silsesquioxane for open tubular capillary electrochromatography. Talanta 2016; 152:277-82. [DOI: 10.1016/j.talanta.2016.02.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 02/03/2016] [Accepted: 02/07/2016] [Indexed: 01/05/2023]
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59
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Li XJ, Jia M, Zhao YX, Liu ZS, Akber Aisa H. Preparation of phenylboronate affinity rigid monolith with macromolecular porogen. J Chromatogr A 2016; 1438:171-8. [DOI: 10.1016/j.chroma.2016.02.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 02/09/2016] [Accepted: 02/09/2016] [Indexed: 01/07/2023]
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60
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Li XY, Bai LH, Huang YP, Liu ZS. Isolation of Epigallocatechin Gallate from Plant Extracts with Metallic Pivot-Assisted Dummy Imprinting. ANAL LETT 2016. [DOI: 10.1080/00032719.2015.1131708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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61
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Wang XL, Yao HF, Li XY, Wang X, Huang YP, Liu ZS. pH/temperature-sensitive hydrogel-based molecularly imprinted polymers (hydroMIPs) for drug delivery by frontal polymerization. RSC Adv 2016. [DOI: 10.1039/c6ra20626c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Frontal polymerization was successfully utilized, for the first time, to obtain pH/temperature-sensitive hydrogel-based molecularly imprinted polymers (hydroMIPs).
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62
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Wu X, Huang YP, Liu ZS. Chemometric and Computational Strategies for Rational Design of Molecularly Imprinted Polymer. CURR ORG CHEM 2015. [DOI: 10.2174/1385272819666150828195933] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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63
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Li F, Chen XX, Huang YP, Liu ZS. Preparation of polyhedral oligomeric silsesquioxane based imprinted monolith. J Chromatogr A 2015; 1425:180-8. [DOI: 10.1016/j.chroma.2015.11.039] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 10/27/2015] [Accepted: 11/10/2015] [Indexed: 10/22/2022]
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64
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Tang L, Zhao CY, Wang XH, Li RS, Yang JR, Huang YP, Liu ZS. Macromolecular crowding of molecular imprinting: A facile pathway to produce drug delivery devices for zero-order sustained release. Int J Pharm 2015; 496:822-33. [DOI: 10.1016/j.ijpharm.2015.10.031] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 10/05/2015] [Accepted: 10/08/2015] [Indexed: 11/30/2022]
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65
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Meng XY, Li YS, Zhou Y, Sun Y, Qiao B, Si CC, Hu P, Lu SY, Ren HL, Liu ZS, Qiu HJ, Liu JQ. An improved RT-IPCR for detection of pyrene and related polycyclic aromatic hydrocarbons. Biosens Bioelectron 2015; 78:194-199. [PMID: 26609944 DOI: 10.1016/j.bios.2015.11.037] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 11/09/2015] [Accepted: 11/13/2015] [Indexed: 11/17/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous homogeneous chemicals which are well known by carcinogens, mutagens and endocrine disorder. Here, an improved real-time immuno-PCR (RT-IPCR) was developed for detection of pyrene and its homologs in water samples. The PAHs in sample compete with pyrene-modified DNA to bind with monoclonal antibody (McAb) coated on PCR plate. The reporter DNA was exponentially amplified by real-time PCR instrument using Fast Start universal SYBR Green Master (ROX) kit. Only two reaction steps were needed to accomplish the detection. The assay had a good linear range from 5 pmol L(-1) to 5 nmol L(-1) with a detection limit of 3.5 pmol L(-1). For application assay, the average recoveries from tap water, lake water and mineral water were 98.4%, 98.2% and 99.7%, respectively which showed a good correlation (R(2)=0.9906) with those from GC-MS. The results indicated that the improved RT-IPCR seems to be a potential method for simple and ultrasensitive detection of pyrene and some homologues in environment water samples.
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Sha ZD, Branicio PS, Pei QX, Liu ZS, Lee HP, Tay TE, Wang TJ. Strong and superplastic nanoglass. NANOSCALE 2015; 7:17404-17409. [PMID: 26437684 DOI: 10.1039/c5nr04740d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The strength-ductility tradeoff has been a common long-standing dilemma in materials science. For example, superplasticity with a tradeoff in strength has been reported for Cu50Zr50 nanoglass (NG) with grain sizes below 5 nm. Here we report an improvement in strength without sacrificing superplasticity in Cu50Zr50 NG by using a bimodal grain size distribution. Our results reveal that large grains impart high strength, which is in striking contrast to the physical origin of the improvement in strength reported in the traditional nanostructured metals/alloys. Furthermore, the mechanical properties of NG with a bimodal nanostructure depend critically upon the fraction of large grains. By increasing the fraction of the large grains, a transition from superplastic flow to failure by shear banding is clearly observed. We expect that these results will be useful in the development of a novel strong and superplastic NG.
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Sha ZD, Qu SX, Liu ZS, Wang TJ, Gao H. Cyclic Deformation in Metallic Glasses. NANO LETTERS 2015; 15:7010-7015. [PMID: 26422317 DOI: 10.1021/acs.nanolett.5b03045] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Despite the utmost importance and decades of experimental studies on fatigue in metallic glasses (MGs), there has been so far little or no atomic-level understanding of the mechanisms involved. Here we perform molecular dynamics simulations of tension-compression fatigue in Cu50Zr50 MGs under strain-controlled cyclic loading. It is shown that the shear band (SB) initiation under cyclic loading is distinctly different from that under monotonic loading. Under cyclic loading, SB initiation takes place when aggregates of shear transformation zones (STZs) accumulating at the MG surface reach a critical size comparable to the SB width, and the accumulation of STZs follows a power law with rate depending on the applied strain. It is further shown that almost the entire fatigue life of nanoscale MGs under low cycle fatigue is spent in the SB-initiation stage, similar to that of crystalline materials. Furthermore, a qualitative investigation of the effect of cycling frequency on the fatigue behavior of MGs suggests that higher cycling frequency leads to more cycles to failure. The present study sheds light on the fundamental fatigue mechanisms of MGs that could be useful in developing strategies for their engineering applications.
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Li X, Liu ZS, Zhao DG, Jiang DS, Chen P, Zhu JJ, Yang J, Le LC, Liu W, He XG, Li XJ, Liang F, Zhang LQ, Liu JQ, Yang H. Differential resistance of GaN-based laser diodes with and without polarization effect. APPLIED OPTICS 2015; 54:8706-8711. [PMID: 26479807 DOI: 10.1364/ao.54.008706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this paper, we used numerical calculation and simulation to investigate the differential resistance of GaN-based laser diodes (LDs) with and without polarization effect. We confirmed the existence of a kink at the vicinity of threshold current in the differential resistance curve of GaN-based LDs and found that the kink polarity can be reversed dependent on the polarization effect. The serial parasitic diodes should be included in the theoretical analysis of the equivalent circuit of the LD devices. We determined that the superposition effects of the n-side, active, and p-side regions of the LDs caused the kink and its polarity. We also found that the differential resistance before and after the threshold was dominated by the p-side region and its gradual reduction is related to an electron overflow into p-side. Finally, we studied the effects of cavity facet reflectivity on the kink.
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Liu X, Yang YY, Wang XM, Liu ZS, Wang ZH, Ding YZ. Sex identification based on AMEL gene PCR amplification from blue sheep (Pseudois nayaur) fecal DNA samples. GENETICS AND MOLECULAR RESEARCH 2015; 14:9045-52. [PMID: 26345836 DOI: 10.4238/2015.august.7.13] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The use of noninvasive genetic sampling to identify the sex of wild animals is an extremely valuable and important tool in molecular ecology and wildlife conservation. Sex determination using the amelogenin gene has been conducted in many species because only a single pair of primers is required to amplify both X- and Y-linked alleles. However, this method has not been used in field research with the feces of wildlife. In this study, we applied this method to 222 fecal samples from wild blue sheep (Pseudois nayaur) using amelogenin primers (SE47/SE48) after testing the effectiveness of sex determination using tissue samples and fecal samples from blue sheep of known sex. We found this method to be highly reliable (80.2%) for blue sheep. Amelogenin can be used to identify the sex of wild animals using fecal samples.
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Sun GY, Zhong DD, Li XJ, Luo YQ, Ba H, Liu ZS, Aisa HA. Effect of minimizing amount of template by addition of macromolecular crowding agent on preparation of molecularly imprinted monolith. Anal Bioanal Chem 2015. [DOI: 10.1007/s00216-015-8902-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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71
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Liu W, Zhao DG, Jiang DS, Chen P, Liu ZS, Zhu JJ, Shi M, Zhao DM, Li X, Liu JP, Zhang SM, Wang H, Yang H, Zhang YT, Du GT. Temperature dependence of photoluminescence spectra for green light emission from InGaN/GaN multiple wells. OPTICS EXPRESS 2015; 23:15935-15943. [PMID: 26193570 DOI: 10.1364/oe.23.015935] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Three green light emitting InGaN/GaN multiple quantum well (MQW) structures with different In composition grown by metal-organic chemical vapor deposition are investigated by the X-ray diffraction and the temperature-dependent photoluminescence (PL) measurements. It is found that when the In composition increases in the InGaN/GaN MQWs, the PL spectral bandwidth may anomalously decrease with increasing temperature. The reduction of PL spectral bandwidth may be ascribed to the enhanced non-radiative recombination process which may lower the light emission efficiency of the localized luminescent centers with shallow localization energy in the high-In-content InGaN quantum wells and also cause a reduction of integrated PL intensity.
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Sun X, Zhang C, Huang YP, Liu ZS. Separation of Epigallocatechin Gallate from Natural Plant Extracts Using Crowding Agents—Assisted Imprinted Polymers. Chromatographia 2015. [DOI: 10.1007/s10337-015-2914-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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73
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Zong HY, Liu X, Liu ZS, Huang YP. Molecular crowding-based imprinted monolithic column for capillary electrochromatography. Electrophoresis 2015; 36:818-24. [DOI: 10.1002/elps.201400382] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 10/28/2014] [Accepted: 11/05/2014] [Indexed: 11/06/2022]
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Mu LN, Wei ZH, Liu ZS. Current trends in the development of molecularly imprinted polymers in CEC. Electrophoresis 2015; 36:764-72. [PMID: 25502791 DOI: 10.1002/elps.201400389] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 11/25/2014] [Accepted: 11/27/2014] [Indexed: 12/22/2022]
Abstract
This review focused on the developments in the field of molecularly imprinted polymers (MIPs) for CEC since 2009. New preparation techniques of MIP-based CEC, such as, portable microchip with macroporous monolithic imprinted microchannel, and low cross-linking MIPs based on liquid crystalline monomers, were discussed. Using selected cases rather than a comprehensive review of the entire field, our goal is to highlight the studies of the interest with an emphasis on recent work, and offers suggestions for future development in the field of imprinted materials for CEC separation.
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Li XY, Ma L, Huang YP, Liu ZS, Aisa HA. Preparation of metallic pivot-based imprinted monoliths with a hydrophilic macromonomer. RSC Adv 2015. [DOI: 10.1039/c5ra02699g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The hydrophilic macromonomer oligo(ethyleneglycol) methyl ether methacrylate (OEG) was introduced into a metal ion-mediated MIP matrix to achieve good selectivity and less hydrophobic character.
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