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Article ; Online: Synthesis of silk fibroin-g-PAA composite using H

Zhou, Buguang / He, Min / Wang, Ping / Fu, Haitian / Yu, Yuanyuan / Wang, Qiang / Fan, Xuerong

Materials science & engineering. C, Materials for biological applications

2017 Volume 81, Page(s) 291–302

Abstract: ... out using hydrogen peroxide-horseradish peroxidase (H ...

Abstract	Silk fibroin (SF) as a bioactive protein can offer growth substrates for hydroxyapatite (HAp) deposition. In the current work, graft copolymerization of acrylic acid (AA) onto fibroin chains was carried out using hydrogen peroxide-horseradish peroxidase (H
Language	English
Publishing date	2017-12-01
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	2012160-X
ISSN	1873-0191 ; 0928-4931
ISSN (online)	1873-0191
ISSN	0928-4931
DOI	10.1016/j.msec.2017.08.006
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: A Unified Modular Synthetic Strategy for Dictyodendrins F, H, I, and G.

Banne, Sreenivas / Prabhakar Reddy, D / Li, Wenxi / Wang, Chenhui / Guo, Jian / He, Yun

Organic letters

2017 Volume 19, Issue 18, Page(s) 4996–4999

Abstract: ... of dictyodendrins G and synthesis of dictyodendrin F, H and I in 11 steps. The synthesis features consecutive ...

Abstract	A unified modular synthetic strategy has been developed for the first total synthesis of dictyodendrins G and synthesis of dictyodendrin F, H and I in 11 steps. The synthesis features consecutive functionalization of the core aminoquinone by palladium-mediated Suzuki-Miyaura coupling reaction, 1,4-addition, acylation and base mediated formation of a pyrrolinone, and the formation of carbazolequinone moiety through a formal [3 + 2] cycloaddition using arynes generated in situ. Several dictyodendrin analogues were also synthesized using this strategy.
Language	English
Publishing date	2017--15
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	1523-7052
ISSN (online)	1523-7052
DOI	10.1021/acs.orglett.7b02511
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: First Report of a Case with Nondeletional Hb H Disease Caused by IVS-I-116 (A>G) of the α2-Globin Gene.

He, Xiao-Hong / Zhang, Rui / Mai, Guang-Xing / Ren, Li-Rong / Li, Dong-Zhi

Hemoglobin

2019 Volume 42, Issue 5-6, Page(s) 344–346

Abstract: ... Hb 7.4 g/dL) and increased Hb Bart's (γ4) level (28.2%), indicative of Hb H (β4) disease. Molecular ... analysis of the family members revealed that the pregnant woman carried a heterozygous IVS-I-116 (A>G ... HBA2: c.96-2A>G) mutation of α2-globin gene, and the fetus was a compound heterozygote for IVS-I-116 ...

Abstract	In this report, we describe a prenatal case with cardiomegaly and increased middle cerebral artery-peak systolic velocity (MCA-PSV) at 22 weeks' gestation. Fetal blood sampling revealed moderate anemia (Hb 7.4 g/dL) and increased Hb Bart's (γ4) level (28.2%), indicative of Hb H (β4) disease. Molecular analysis of the family members revealed that the pregnant woman carried a heterozygous IVS-I-116 (A>G) (HBA2: c.96-2A>G) mutation of α2-globin gene, and the fetus was a compound heterozygote for IVS-I-116 and the Southeast Asian (- -
MeSH term(s)	Anemia/blood ; Female ; Fetal Diseases/diagnosis ; Heterozygote ; Humans ; Inheritance Patterns ; Pregnancy ; Prenatal Diagnosis ; Ultrasonography, Prenatal ; alpha-Globins/genetics ; alpha-Thalassemia/diagnosis
Chemical Substances	alpha-Globins
Language	English
Publishing date	2019-01-24
Publishing country	England
Document type	Case Reports ; Journal Article
ZDB-ID	750615-6
ISSN	1532-432X ; 0363-0269
ISSN (online)	1532-432X
ISSN	0363-0269
DOI	10.1080/03630269.2018.1556684
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Article: A Unified Modular Synthetic Strategy for Dictyodendrins F, H, I, and G

Banne, Sreenivas / Prabhakar Reddy D / Li Wenxi / Wang Chenhui / Guo Jian / He Yun

Organic letters. 2017 Sept. 15, v. 19, no. 18

2017

Abstract: ... of dictyodendrins G and synthesis of dictyodendrin F, H and I in 11 steps. The synthesis features consecutive ...

Abstract	A unified modular synthetic strategy has been developed for the first total synthesis of dictyodendrins G and synthesis of dictyodendrin F, H and I in 11 steps. The synthesis features consecutive functionalization of the core aminoquinone by palladium-mediated SuzukiâMiyaura coupling reaction, 1,4-addition, acylation and base mediated formation of a pyrrolinone, and the formation of carbazolequinone moiety through a formal [3 + 2] cycloaddition using arynes generated in situ. Several dictyodendrin analogues were also synthesized using this strategy.
Keywords	Suzuki reaction ; acylation ; cycloaddition reactions ; moieties ; organic compounds
Language	English
Dates of publication	2017-0915
Size	p. 4996-4999.
Publishing place	American Chemical Society
Document type	Article
ISSN	1523-7052
DOI	10.1021%2Facs.orglett.7b02511
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: A Colorimetric Assay for the Detection of Glucose and H 2 O 2 Based on Cu-Ag/g-C 3 N 4 /ZIF Hybrids with Superior Peroxidase Mimetic Activity

Quan Pan / Yuelin Kong / Kuan Chen / Mi Mao / Xiaohui Wan / Xiaoyan She / Qingsong Gao / Yu He / Gongwu Song

Molecules, Vol 25, Iss 4432, p

2020 Volume 4432

Abstract: In this work, we report the synthesis of Cu-Ag bimetallic nanopartiles and g-C 3 N 4 nanosheets ... decorated on zeolitic imidazolate framework-8 (ZIF-8) to form a Cu-Ag/g-C 3 N 4 /ZIF hybrid. The hybrid was ... the X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The Cu-Ag/g-C 3 N 4 /ZIF hybrid has ...

Abstract	In this work, we report the synthesis of Cu-Ag bimetallic nanopartiles and g-C 3 N 4 nanosheets decorated on zeolitic imidazolate framework-8 (ZIF-8) to form a Cu-Ag/g-C 3 N 4 /ZIF hybrid. The hybrid was synthesized and characterized by Transmission electron microscopy (TEM), Fourier transformed infrared (FTIR), the X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The Cu-Ag/g-C 3 N 4 /ZIF hybrid has intrinsic peroxidaselike catalytic activity towards the oxidation of TMB in the presence of H 2 O 2 . The situ synthesis of Cu-Ag bimetallic nanopartiles on 2D support such as g-C 3 N 4 nanosheets would significantly enhance the peroxidaselike catalytic properties of individual Cu-Ag bimetallic nanopartiles and the g-C 3 N 4 nanosheets. After loading of Cu-Ag bimetallic nanopartiles and g-C 3 N 4 nanosheets on the ZIF-8, the hybrids exhibited superior peroxidaselike catalytic activity and good recyclability. Then, this method was applied for detecting glucose in human serum, owing the significant potential for detection of metabolites with H 2 O 2 -generation reactions.
Keywords	Cu-Ag/g-C 3 N 4 /ZIF hybrid ; nanozyme ; colorimetric detection ; H 2 O 2 ; glucose ; Organic chemistry ; QD241-441
Subject code	290 ; 669
Language	English
Publishing date	2020-09-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Label-free fluorescence assay for rapid detection of RNase H activity based on Tb³⁺-induced G-quadruplex conjugates

Wu, Kefeng / Changbei Ma / Haisheng Liu / Hailun He / Weimin Zeng / Kemin Wang

Analytical methods. 2017 May 25, v. 9, no. 20

2017

Abstract: ... by using a G-quadruplex formation strategy. This novel assay method can detect RNase H at the lowest ... Ribonuclease H (RNase H), a highly conserved damage-repair protein, hydrolyzes RNA in the DNA:RNA ... fluorescence assay that is low cost, facile, and label-free for assaying RNase H activity and inhibitions ...

Abstract	Ribonuclease H (RNase H), a highly conserved damage-repair protein, hydrolyzes RNA in the DNA:RNA hybrid duplex and breaks RNA/DNA junctions. In this study, we demonstrated a unique Tb³⁺-based fluorescence assay that is low cost, facile, and label-free for assaying RNase H activity and inhibitions by using a G-quadruplex formation strategy. This novel assay method can detect RNase H at the lowest detection limit of 2 U mL⁻¹ under optimal conditions. We demonstrated the utility of the assay by antibiotics screening and identified ethidium bromide (EB) and Gentamycin as RNase H inhibitors. This approach demonstrated that Tb³⁺ could be used as a functional tool in specific fields in the future.
Keywords	DNA ; RNA ; analytical methods ; ethidium ; fluorescence ; gentamicin ; hybrids ; rapid methods ; ribonucleases ; screening ; terbium
Language	English
Dates of publication	2017-0525
Size	p. 3055-3060.
Publishing place	The Royal Society of Chemistry
Document type	Article
ZDB-ID	2515210-5
ISSN	1759-9679 ; 1759-9660
ISSN (online)	1759-9679
ISSN	1759-9660
DOI	10.1039/c7ay00709d
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Surface P atom grafting of g-C₃N₄ for improved local spatial charge separation and enhanced photocatalytic H₂ production

Tian, Xiao / Sun, Ying-jie / He, Jiang-yan / Wang, Xiao-Jing / Zhao, Jun / Qiao, Shi-zhang / Li, Fa-tang

Journal of materials chemistry A. 2019 Mar. 26, v. 7, no. 13 p.7628-7635

2019

Abstract: ... challenging issues for the graphitic carbon nitride (g-C₃N₄) photocatalyst. Surface atom decoration is ... charge separation of the photocatalyst. Here, we first reported a surface P atom grafting strategy for g ... in tri-s-triazine of g-C₃N₄, which resulted in an impurity state, and it acted as an electron capture ...

Abstract	Improving charge separation efficiency and accelerating surface reaction kinetics are two challenging issues for the graphitic carbon nitride (g-C₃N₄) photocatalyst. Surface atom decoration is a facile and efficacious strategy to modulate the electronic structure and then affect the local spatial charge separation of the photocatalyst. Here, we first reported a surface P atom grafting strategy for g-C₃N₄via P–N bond formation to effectively promote the local spatial charge separation and ample reactive sites. The post-calcination process allowed controllable grafting of P–OH at the corner-nitrogen sites in tri-s-triazine of g-C₃N₄, which resulted in an impurity state, and it acted as an electron capture center for local spatial charge separation and reactive sites. Thus, the surface N–P–OH bond modulation of g-C₃N₄ rendered nearly four-fold enhancement in the hydrogen evolution rate. The ability to build pure surface P–N motif modulation presents a promising strategy to realize the precise band engineering of modulated g-C₃N₄. These findings would deepen the understanding of the nonmetal atom decoration-related issues of g-C₃N₄-based materials.
Keywords	carbon nitride ; chemical bonding ; engineering ; graphene ; hydrogen production ; photocatalysis ; photocatalysts ; reaction kinetics
Language	English
Dates of publication	2019-0326
Size	p. 7628-7635.
Publishing place	The Royal Society of Chemistry
Document type	Article ; Online
ZDB-ID	2702232-8
ISSN	2050-7496 ; 2050-7488
ISSN (online)	2050-7496
ISSN	2050-7488
DOI	10.1039/c9ta00129h
Database	NAL-Catalogue (AGRICOLA)

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Article: Multi-functional Ni₃C cocatalyst/g-C₃N₄ nanoheterojunctions for robust photocatalytic H₂ evolution under visible light

He, Kelin / Jun Xie / Zhao-Qing Liu / Neng Li / Xiaobo Chen / Jun Hu / Xin Li

Journal of materials chemistry. 2018 July 10, v. 6, no. 27

2018

Abstract: ... The optimal H₂-production rate of 15.18 μmol h⁻¹ over 15 wt% Ni₃C nanoparticle decorated g-C₃N₄, corresponding ... thermolysis of nickel acetylacetonate in oleylamine under a nitrogen atmosphere and were then coupled with g ... C₃N₄ by a simple grinding method. The photocatalytic performances of g-C₃N₄/Ni₃C nanoheterojunctions ...

Abstract	Developing highly active, non-noble-metal H₂ evolution co-catalysts is appealing yet still remains a great challenge in the promising field of visible-light-driven photocatalytic solar fuel H₂ production. In this work, high quality hexagonal Ni₃C nanoparticles were facilely fabricated through the low-temperature thermolysis of nickel acetylacetonate in oleylamine under a nitrogen atmosphere and were then coupled with g-C₃N₄ by a simple grinding method. The photocatalytic performances of g-C₃N₄/Ni₃C nanoheterojunctions were tested under visible light irradiation using triethanolamine (TEOA) as a hole scavenger. The optimal H₂-production rate of 15.18 μmol h⁻¹ over 15 wt% Ni₃C nanoparticle decorated g-C₃N₄, corresponding to an apparent quantum yield (AQY) of 0.40% at 420 nm, is approximately 116.7 times higher than that of pure g-C₃N₄ and is even larger than that of the 0.5 wt% Pt/g-C₃N₄ sample. Well resolved density functional theory (DFT) calculation reveals that the “TOP” site of Ni₃C(113) with a H adsorption energy of −0.97 eV is likely the dominant reaction site for H₂ evolution, rather than the Hollow and Bridge sites. It was also demonstrated by the polarization curves that the Ni₃C nanoparticles could act as multi-functional electrocatalysts to improve the kinetics for water oxidation, the oxidation of TEOA, and hydrogen evolution in both acidic and basic media. Therefore, the loading of multi-functional Ni₃C cocatalyst nanoparticles onto g-C₃N₄ can fundamentally promote the rapid transportation/separation of charge carriers, enhance the oxidation kinetics of TEOA, and decrease the overpotential of H₂-evolution, thus favoring significantly enhanced photocatalytic activity. It is highly expected that this work will provide new ideas to develop robust metal carbides as noble-metal-free cocatalysts for high-efficiency and low-cost g-C₃N₄-based photocatalytic water splitting.
Keywords	adsorption ; carbides ; carbon nitride ; density functional theory ; energy ; grinding ; hydrogen ; hydrogen production ; irradiation ; light ; nanoparticles ; nickel ; nitrogen ; oxidation ; photocatalysis ; solar energy ; thermal degradation
Language	English
Dates of publication	2018-0710
Size	p. 13110-13122.
Publishing place	The Royal Society of Chemistry
Document type	Article
ZDB-ID	2702232-8
ISSN	2050-7496 ; 2050-7488
ISSN (online)	2050-7496
ISSN	2050-7488
DOI	10.1039/c8ta03048k
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Global diabatic potential energy surfaces and quantum dynamical studies for the Li(2p) + H2(X(1)Σ(+)g) → LiH(X(1)Σ(+)) + H reaction.

He, Di / Yuan, Jiuchuang / Li, Huixing / Chen, Maodu

Scientific reports

2016 Volume 6, Page(s) 25083

Abstract: ... configuration interaction method and large basis sets (aug-cc-pVQZ for H atom and cc-pwCVQZ for Li atom) were ...

Abstract	The global diabatic potential energy surfaces which are correlated with the ground state 1A' and the excited state 2A' of the Li(2p) + H2 reaction are presented in this study. The multi-reference configuration interaction method and large basis sets (aug-cc-pVQZ for H atom and cc-pwCVQZ for Li atom) were employed in the ab initio single-point energy calculations. The diabatic potential energies were generated by the diabatization scheme based on transition dipole moment operators. The neural network method was utilized to fit the matrix elements of the diabatic energy surfaces, and the root mean square errors were extremely small (3.69 meV for , 5.34 meV for and 5.06 meV for ). The topographical features of the diabatic potential energy surfaces were characterized and the surfaces were found to be sufficiently smooth for the dynamical calculation. The crossing seam of the conical intersections between the and surfaces were pinpointed. Based on this new analytical diabatic potential energy surfaces, time-dependent wave packet calculation were conducted to investigate the mechanism of the title reaction. At low collision energies, the product LiH molecule tends to forward scattering, while at high collision energies, the forward and backward scatterings exist simultaneously.
Language	English
Publishing date	2016-04-29
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/srep25083
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Template-free synthesis of nanocage-like g-C₃N₄ with high surface area and nitrogen defects for enhanced photocatalytic H₂ activity

Wu, Mao / Yansheng Gong / Tao Nie / Jin Zhang / Rui Wang / Huanwen Wang / Beibei He

Journal of materials chemistry A. 2019 Mar. 5, v. 7, no. 10

2019

Abstract: Nanocage-like 3D porous graphitic carbon nitride (g-C₃N₄) with a high surface area and nitrogen ... copolymerization route. Compared with pristine g-C₃N₄, the synergetic effect of nitrogen vacancies combined ... As a consequence, the modified g-C₃N₄ exhibited prominent photocatalytic performance in water splitting ...

Abstract	Nanocage-like 3D porous graphitic carbon nitride (g-C₃N₄) with a high surface area and nitrogen defects was successfully prepared via a novel, template-free, cost-effective and hydrothermal-copolymerization route. Compared with pristine g-C₃N₄, the synergetic effect of nitrogen vacancies combined with a nanocage-like structure endowed it with a broad visible-light-responsive range, more exposed active lateral edges and catalytically active sites, as well as efficient separation of photogenerated carriers. As a consequence, the modified g-C₃N₄ exhibited prominent photocatalytic performance in water splitting for the hydrogen evolution reaction under visible light illumination. The optimized photocatalyst (DCN-550) showed a maximum photocatalytic H₂ evolution rate of 92.57 μmol h⁻¹, almost 20.3 times higher than that of pristine g-C₃N₄. Moreover, a possible mechanism for the photocatalytic hydrogen evolution and nanostructure formation process based on the experimental results was proposed. The new growth strategy developed here could inspire similar attempts to modify novel visible-light-driven photocatalysts through nanostructure design.
Keywords	active sites ; carbon nitride ; cost effectiveness ; graphene ; hydrogen ; hydrogen production ; light ; lighting ; nanomaterials ; nitrogen ; photocatalysis ; photocatalysts ; surface area ; synergism
Language	English
Dates of publication	2019-0305
Size	p. 5324-5332.
Publishing place	The Royal Society of Chemistry
Document type	Article
ZDB-ID	2702232-8
ISSN	2050-7496 ; 2050-7488
ISSN (online)	2050-7496
ISSN	2050-7488
DOI	10.1039/c8ta12076e
Database	NAL-Catalogue (AGRICOLA)

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