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You searched for: Journal name RSC advances Remove constraint Journal name: RSC advances Publication year rev 7983-2017 Remove constraint Publication year rev: 7983-2017 Source 2017 v.7 no.21 Remove constraint Source: 2017 v.7 no.21
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1. Chemoenzymatic epoxidation of alkenes with Candida antarctica lipase B and hydrogen peroxide in deep eutectic solvents

Author:
Pengfei Zhou; Xuping Wang; Bo Yang; Frank Hollmann; Yonghua Wang
Source:
RSC advances 2017 v.7 no.21 pp. 12518-12523
ISSN:
2046-2069
Subject:
Pseudozyma antarctica; alkenes; biocatalysts; carboxylic ester hydrolases; choline; epoxidation reactions; epoxides; hydrogen peroxide; ionic liquids; sorbitol
Abstract:
... Epoxides are important synthetic intermediates for the synthesis of a broad range of industrial products. This study presents a promising solution to the current limitation of enzyme instability. By using simple deep eutectic solvents such as choline chloride/sorbitol, significant stabilization of the biocatalyst has been achieved leading to more robust reactions while using environmentally more a ...
DOI:
10.1039/c7ra00805h

2. Comparison of dry and wet milling pre-treatment methods for improving the anaerobic digestion performance of the Pennisetum hybrid

Author:
Dong Pengyu; Li Lianhua; Zhen Feng; Kong Xiaoying; Sun Yongming; Zhang Yi
Source:
RSC advances 2017 v.7 no.21 pp. 12610-12619
ISSN:
2046-2069
Subject:
Pennisetum; anaerobic digestion; biogas; crystallization; dry milling; fermentation; grasses; hybrids; methane production; surface area; wet milling
Abstract:
... Two types of milling pre-treatment methods were used to study their effects on the anaerobic digestion performance of the Pennisetum hybrid. The physical structure of the Pennisetum hybrid could be significantly damaged with both milling pre-treatment methods. With an increase in treatment time, the pore volume, surface area, average pore diameter, and the crystallization index of the Pennisetum h ...
DOI:
10.1039/c6ra27822a

3. Correction: Promising advances of thiacalix[4]arene in crystal structures

Author:
Mei Zhao; Jing Lv; Dian-Shun Guo
Source:
RSC advances 2017 v.7 no.21 pp. 12826
ISSN:
2046-2069
Subject:
aromatic hydrocarbons; crystal structure
Abstract:
... Correction for ‘Promising advances of thiacalix[4]arene in crystal structures’ by Mei Zhao et al., RSC Adv., 2017, 7, 10021–10050. ...
DOI:
10.1039/c7ra90023f

4. Correction: Synthesis and characterization of TPGS–gemcitabine prodrug micelles for pancreatic cancer therapy

Author:
Vaibhav Khare; Wejdan Al. Sakarchi; Prem N. Gupta; Anthony D. M. Curtis; Clare Hoskins
Source:
RSC advances 2017 v.7 no.21 pp. 12598
ISSN:
2046-2069
Subject:
micelles; pancreatic neoplasms; therapeutics
Abstract:
... Correction for ‘Synthesis and characterization of TPGS–gemcitabine prodrug micelles for pancreatic cancer therapy’ by Vaibhav Khare et al., RSC Adv., 2016, 6, 60126–60137. ...
DOI:
10.1039/c7ra90021j

5. Correction: Titania nanotubes infiltrated with the conducting polymer PEDOT modified by Prussian blue – a novel type of organic–inorganic heterojunction characterised with enhanced photoactivity

Author:
K. Siuzdak; M. Szkoda; J. Karczewski; J. Ryl; A. Lisowska-Oleksiak
Source:
RSC advances 2017 v.7 no.21 pp. 12976
ISSN:
2046-2069
Subject:
nanotubes; polymers; titanium dioxide
Abstract:
... Correction for ‘Titania nanotubes infiltrated with the conducting polymer PEDOT modified by Prussian blue – a novel type of organic–inorganic heterojunction characterised with enhanced photoactivity’ by K. Siuzdak et al., RSC Adv., 2016, 6, 76246–76250. ...
DOI:
10.1039/c7ra90030a

6. Design, synthesis, and biological evaluation of oxazolidone derivatives as highly potent N-acylethanolamine acid amidase (NAAA) inhibitors

Author:
Jie Ren; Yuhang Li; Hongwei Ke; Yanting Li; Longhe Yang; Helin Yu; Rui Huang; Canzhong Lu; Yan Qiu
Source:
RSC advances 2017 v.7 no.21 pp. 12455-12463
ISSN:
2046-2069
Subject:
N-acylethanolamine acid amidase; analgesic effect; catalytic activity; fatty acids; hydrolysis; inflammation; inhibitory concentration 50; lipophilicity; oral administration; pain; peroxisome proliferator-activated receptors; structure-activity relationships
Abstract:
... N-Acylethanolamine-hydrolyzing acid amidase (NAAA) is a lysosomal enzyme that catalyzes the hydrolysis of endogenous fatty acid ethanolamides (FAEs), such as N-palmitoylethanolamide (PEA). PEA exhibits anti-inflammatory and analgesic activities by engaging peroxisome proliferator-activated receptor α (PPAR-α). Preventing PEA degradation by inhibition of NAAA has been proposed as a novel strategy f ...
DOI:
10.1039/c6ra28734d

7. Detection of phosphatidylserine in the plasma membrane of single apoptotic cells using electrochemiluminescence

Author:
Rui Wang; Danjun Fang
Source:
RSC advances 2017 v.7 no.21 pp. 12969-12972
ISSN:
2046-2069
Subject:
amino acids; apoptosis; electrochemiluminescence; electrochemistry; hydrogen peroxide; phosphatidylserines; phospholipase D; plasma membrane
Abstract:
... Phosphatidylserine (PS) in the plasma membrane of single apoptotic cells was detected using luminol electrochemiluminescence for the first time. Membrane PS was converted by aqueous phospholipase D and l-amino acid oxidase to generate hydrogen peroxide, inducing electrochemically generated luminescence. The successful observation of PS in the cellular membrane provided a special strategy for the o ...
DOI:
10.1039/c6ra28031e

8. Determination of amino groups on functionalized graphene oxide for polyurethane nanomaterials: XPS quantitation vs. functional speciation

Author:
Jakub Ederer; Pavel Janoš; Petra Ecorchard; Jakub Tolasz; Václav Štengl; Hynek Beneš; Magdalena Perchacz; Ognen Pop-Georgievski
Source:
RSC advances 2017 v.7 no.21 pp. 12464-12473
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; acid orange 7; graphene oxide; nanocomposites; nanomaterials; nitrogen; nitrogen content; pH; polyurethanes; spectrophotometers; transmission electron microscopy
Abstract:
... Amino-functionalized graphene oxide was reacted with isocyanate monomer to evaluate the potential application of GO-NH₂ as a functional filler for the preparation of polyurethane nanocomposites. A set of advanced techniques (XRD, FTIR spectroscopy, Raman spectroscopy, and TEM) was used to characterize the functionalized samples, together with elemental analysis and XPS, which provided valuable inf ...
DOI:
10.1039/c6ra28745j

9. Dynamic conductance characteristics in HfOₓ-based resistive random access memory

Author:
Ying-Chen Chen; Yao-Feng Chang; Xiaohan Wu; Fei Zhou; Meiqi Guo; Chih-Yang Lin; Cheng-Chih Hsieh; Burt Fowler; Ting-Chang Chang; Jack C. Lee
Source:
RSC advances 2017 v.7 no.21 pp. 12984-12989
ISSN:
2046-2069
Subject:
computer hardware; thermal stress
Abstract:
... Characteristics of HfOₓ-based resistive switching memory (RRAM) in Al/HfOₓ/Al and Al/AlOₓ/HfOₓ/Al structures were studied using a dynamic conductance method. Step-like RESET behaviors as well as pre- and post-RESET regions of operation were characterized. The results indicated that defects at the oxide interface caused cycling issues in the Al/AlOₓ/HfOₓ/Al structure. No such RESET behavior was obs ...
DOI:
10.1039/c7ra00567a

10. Effect of graphene oxide interlayer electron-phonon coupling on the electro-optical parameters of a ferroelectric liquid crystal

Author:
D. P. Singh; V. Kumar; A. Kumar; R. Manohar; Renu Pasricha; B. Duponchel; Y. Boussoualem; A. H. Sahraoui; A. Daoudi
Source:
RSC advances 2017 v.7 no.21 pp. 12479-12485
ISSN:
2046-2069
Subject:
Raman spectroscopy; X-ray diffraction; absorbance; filters; graphene oxide; light microscopy; liquid crystals; nanomaterials; photons; ultraviolet radiation
Abstract:
... A small concentration of graphene oxide (GO) was dispersed in ferroelectric liquid crystal (FLC), and the effect of the same on the electro-optical parameters of the FLC–GO composite has been investigated using various techniques, such as Raman spectroscopy, UV-visible absorbance, XRD, and polarizing optical microscopy. The electro-optical parameters were remarkably modified and this effect is fou ...
DOI:
10.1039/c6ra25126a

11. Efficiency and stability enhancement of inverted perovskite solar cells via the addition of metal nanoparticles in the hole transport layer

Author:
G. Kakavelakis; K. Alexaki; E. Stratakis; E. Kymakis
Source:
RSC advances 2017 v.7 no.21 pp. 12998-13002
ISSN:
2046-2069
Subject:
aluminum; gold; nanogold; nanoparticles; nanosilver; silver; solar cells
Abstract:
... In this work, the addition of different types (Au, Ag and Al) of metal nanoparticles (NPs) in the PEDOT:PSS hole transport layer of inverted perovskite solar cells was systematically studied. The Ag and Au NP incorporation led to the highest power conversion efficiency improvement, while the Al NP-based devices showed significantly improved stability compared to the pristine one. Efficiencies exce ...
DOI:
10.1039/c7ra00274b

12. Experimental evidence of electronic polarization in a family of photo-ferroelectrics

Author:
Hitesh Borkar; Vaibhav Rao; M. Tomar; Vinay Gupta; J. F. Scott; Ashok Kumar
Source:
RSC advances 2017 v.7 no.21 pp. 12842-12855
ISSN:
2046-2069
Subject:
Raman spectroscopy; X-ray diffraction; ambient temperature; dielectric properties; electric field; lighting; models; oxides; wavelengths
Abstract:
... We report a family of ferroelectric materials which exhibit optical control of dielectric constant, polarization, and conductivity at ambient conditions. The evolution of photo-induced charge carriers under illumination of weak monochromatic light of wavelength λ = 405 nm developed electronic polarization that reorients or enhances the ionic polarization in the direction of the applied electric fi ...
DOI:
10.1039/c7ra00500h

13. Experimental studies of hydrocarbon separation on zeolites, activated carbons and MOFs for applications in natural gas processing

Author:
Yunxia Yang; Nick Burke; Suhaib Ali; Stanley Huang; Seng Lim; Yonggang Zhu
Source:
RSC advances 2017 v.7 no.21 pp. 12629-12638
ISSN:
2046-2069
Subject:
adsorbents; adsorption; butanes; carbon; coal; equipment; ethane; liquefaction; methane; micropores; molecular weight; natural gas; porosity; propane; steam; zeolites
Abstract:
... Separation of minor hydrocarbon components in natural gas is necessary prior to liquefaction to avoid operational (plugging of equipment) and product specification issues. While there have been many studies describing adsorption of gases on solid materials there have been relatively few focused on decreasing concentrations of light hydrocarbons in methane in non-equilibrium experimental configurat ...
DOI:
10.1039/c6ra25509d

14. Facile access to novel 1,2,4-oxadiazinan-5-ones via [3 + 3] cycloaddition of in situ generated azaoxyallyl cations with nitrones

Author:
Hong-Wu Zhao; Yu-Di Zhao; Yue-Yang Liu; Li-Jiao Zhao; Ning-Ning Feng; Hai-Liang Pang; Xiao-Qin Chen; Xiu-Qing Song; Juan Du
Source:
RSC advances 2017 v.7 no.21 pp. 12916-12922
ISSN:
2046-2069
Subject:
X-ray diffraction; cations; crystal structure; cycloaddition reactions; sodium carbonate
Abstract:
... In the presence of Na₂CO₃, azaoxyallyl cations in situ generated from α-halohydroxamates with nitrones readily underwent [3 + 3] cycloaddition, and gave rise to 1,2,4-oxadiazinan-5-one derivatives in 56–99% chemical yields. The chemical structure of the title compounds was unambiguously identified by X-ray single crystal structure analysis. ...
DOI:
10.1039/c6ra27440d

15. Heteroatom facilitated preparation of electrodes for sodium ion batteries

Author:
Manik E. Bhosale; Abhik Banerjee; Kothandam Krishnamoorthy
Source:
RSC advances 2017 v.7 no.21 pp. 12659-12662
ISSN:
2046-2069
Subject:
batteries; carbon; electrodes; polymers
Abstract:
... A conjugated polymer comprising heterocycles was prepared and carbonized to obtain carbon with interlayer spacings between 0.42 and 0.37 nm and exhibited a specific capacity of 250 mA h g⁻¹. ...
DOI:
10.1039/c6ra27662h

16. Ir-catalyzed asymmetric hydrogenation of β-keto esters with chiral ferrocenyl P,N,N-ligands

Author:
Xiu-Shuai Chen; Chuan-Jin Hou; Chao Qin; Hongzhu Liu; Yan-Jun Liu; De-Zhi Huang; Xiang-Ping Hu
Source:
RSC advances 2017 v.7 no.21 pp. 12871-12875
ISSN:
2046-2069
Subject:
enantioselectivity; esters; hydrogenation
Abstract:
... The Ir-catalyzed asymmetric hydrogenation of β-keto esters with chiral ferrocenyl P,N,N-ligands has been developed. Under the optimized conditions, a wide range of β-keto esters were hydrogenated to afford the corresponding β-hydroxy esters in good to excellent enantioselectivities (up to 95% ee). ...
DOI:
10.1039/c7ra00472a

17. Isatin thiosemicarbazones promote honeycomb structure formation in spin-coated polymer films: concentration effect and release studies

Author:
V. García Fernández-Luna; D. Mallinson; P. Alexiou; I. Khadra; A. B. Mullen; M. Pelecanou; M. Sagnou; D. A. Lamprou
Source:
RSC advances 2017 v.7 no.21 pp. 12945-12952
ISSN:
2046-2069
Subject:
atomic force microscopy; bacterial colonization; coatings; contact angle; films (materials); hydrophobicity; manufacturing; pH; polymethylmethacrylate; polyurethanes; silica
Abstract:
... Formation of ordered porous polymer films is one of the techniques currently under investigation for its potential for the manufacturing of coatings with biomedical applications. Aiming for films with improved characteristics against bacterial colonization, poly(methyl methacrylate) (PMMA) and polyurethane (PU) films were formed via the spin coating method on silica wafer (SW) substrates, in the a ...
DOI:
10.1039/c6ra28163j

18. Laccase-mediated in situ oxidation of dopa for bio-inspired coloration of silk fabric

Author:
Weini Jia; Qiang Wang; Xuerong Fan; Aixue Dong; Yuanyuan Yu; Ping Wang
Source:
RSC advances 2017 v.7 no.21 pp. 12977-12983
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; adsorption; atomic force microscopy; catalytic activity; color; dyeing; elemental composition; laccase; melanin; moieties; oxidation; phenolic compounds; phenylalanine; polymerization; polymers; silk; silk fabric
Abstract:
... Bio-inspired or bionic coloration of fiber assemblies based on chemical oxidation of phenolics has gained more and more attention in recent years. To overcome the challenges of protecting the ecology and environment in textile processes, a novel approach for the coloration of silk fabrics via laccase-mediated in situ oxidation of dopa (dihydroxy phenylalanine) has been investigated in this work. I ...
DOI:
10.1039/c6ra25533g

19. Nanodiamonds as Raman probes for specifically targeted bioimaging: visualization and mechanism study of the biorecognition between nanodiamonds-EGF and EGFR

Author:
Dandan Li; Xin Chen; Hong Wang; Yuan Yu; Jie Liu; Yu Wang; Jinghua Zhang; Meiling Zheng; Jinfang Zhi
Source:
RSC advances 2017 v.7 no.21 pp. 12835-12841
ISSN:
2046-2069
Subject:
Raman imaging; cell movement; dose response; drug delivery systems; epidermal growth factor; human cell lines; ligands; nanodiamonds; neoplasm cells; neoplasms; receptors
Abstract:
... Nanodiamonds (NDs), with many superior properties, have been utilized as multifunctional drug delivery platforms, which are suitable for cancer cell targeting, imaging and therapeutic applications. In this paper, NDs were modified with epidermal growth factor (EGF) molecules through the amide bonds, and used as cancer cell seeking probes with confocal Raman microscopy to visualize the specific tar ...
DOI:
10.1039/c6ra28139g

20. New green synthesized reduced graphene oxide–ZrO₂ composite as high performance photocatalyst under sunlight

Author:
K. Gurushantha; K. S. Anantharaju; L. Renuka; S. C. Sharma; H. P. Nagaswarupa; S. C. Prashantha; Y. S. Vidya; H. Nagabhushana
Source:
RSC advances 2017 v.7 no.21 pp. 12690-12703
ISSN:
2046-2069
Subject:
Raman spectroscopy; X-ray photoelectron spectroscopy; absorption; cinnamon; electrical properties; graphene; graphene oxide; nanocomposites; nanomaterials; photocatalysis; photocatalysts; scanning electron microscopy; solar radiation; transmission electron microscopy; zirconium oxide
Abstract:
... We report a green route method for the effective reduction of graphene oxide using Cinnamon extract. ZrO₂ nanomaterial synthesized via facile green induced method and zirconia–reduced graphene oxide nanocomposite (NC) synthesized by reflux method. The structural properties of the prepared NC had been characterized using PXRD, SEM, TEM, Raman, PL and XPS analysis. Further, the excellent photocataly ...
DOI:
10.1039/c6ra25823a