U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Journal name RSC advances Remove constraint Journal name: RSC advances Publication year rev 7978-2022 Remove constraint Publication year rev: 7978-2022
Start Over

Search

1,973  Search Results

« Previous | 1 - 20 of 1,973 |
Number of results to display per page

Search Results

1. 1,2-Difunctionalizations of alkynes entailing concomitant C–C and C–N bond-forming carboamination reactions

Author:
Santosh Kumar Nanda; Rosy Mallik
Source:
RSC advances 2022 v.12 no.10 pp. 5847-5870
ISSN:
2046-2069
Subject:
alkynes; amines; catalytic activity; fields; transition elements; wills
Abstract:
... Vicinal carboamination of alkynes is a highly reliable and efficient practical strategy for the quick preparation of valuable and diverse amine derivatives starting from simple synthons. The last decade has witnessed numerous practical methods employing transition-metal-based/metal-free carboamination approaches using alkynes for the synthesis of these N-bearing entities. Driven by the renaissance ...
DOI:
10.1039/d1ra06633a

2. 1-(4-Hydroxyphenyl)-2H-tetrazole-5-thione as a leveler for acid copper electroplating of microvia

Author:
Xulingjie Teng; Zhihua Tao; Zhiyuan Long; Guanting Liu; Xuefei Tao
Source:
RSC advances 2022 v.12 no.25 pp. 16153-16164
ISSN:
2046-2069
Subject:
Lewis acids; Lewis bases; dielectric spectroscopy; electrochemistry; quantum mechanics; synergism; voltammetry
Abstract:
... Microvia filling by copper electroplating was performed using plating solution with 1-(4-hydroxyphenyl)-2H-tetrazole-5-thione (HPTT) as the leveler. Galvanostatic Measurements (GMs), Linear Sweep Voltammetry (LSV) and Electrochemical Impedance Spectroscopy (EIS) tests were carried out to investigate the electrochemical behaviors of HPTT and its synergistic effect with other additives, in compariso ...
DOI:
10.1039/d2ra02274e

3. 2,7-Diazapyrenes: a brief review on synthetic strategies and application opportunities

Author:
Anindita Mukherjee; Alexey A. Akulov; Sougata Santra; Mikhail V. Varaksin; Grigory A. Kim; Dmitry S. Kopchuk; Olga S. Taniya; Grigory V. Zyryanov; Oleg. N. Chupakhin
Source:
RSC advances 2022 v.12 no.15 pp. 9323-9341
ISSN:
2046-2069
Subject:
DNA; electronics; geometry; moieties
Abstract:
... 2,7-Diazapyrenes are promising azaaromatic scaffolds with a unique structural geometry and supramolecular properties. This core moiety and its derivatives with some N-methyl cations like N-methyl-2,7,-diazapyrenium, and N,N′-dimethyl-2,7-diazapyrenium attract special attention due to their challenging photophysical properties, especially in the context of interactions with DNA and some of its mono ...
DOI:
10.1039/d2ra00260d

4. 2-Methoxy-1,4-naphthoquinone regulated molecular alternation of Fusarium proliferatum revealed by high-dimensional biological data

Author:
Jiajia Yang; Xuewei Xia; Meixia Guo; Li Zhong; Xiaoyong Zhang; Xuewu Duan; Jun Liu; Riming Huang
Source:
RSC advances 2022 v.12 no.24 pp. 15133-15144
ISSN:
2046-2069
Subject:
Fusarium proliferatum; cell membranes; dicarboxylic acids; gene expression regulation; human health; metabolism; metabolites; metabolomics; permeability; proteomics; pyruvic acid; serine; threonine; transcriptomics; tricarboxylic acid cycle
Abstract:
... Fungi Fusarium proliferatum and the toxins it produces are hazardous to agricultural plants, animals, and human health. However, there is a lack of more effective and environment-friendly natural anti-F. proliferatum agents. In the search for natural anti-fungal agents, we found that naturally originated 2-methoxy-1,4-naphthoquinone (MNQ) with a minimal inhibitory dose of 8.0 mg L⁻¹ possessed a po ...
DOI:
10.1039/d2ra02425j

5. 2D graphene/FeOCl heterojunctions with enhanced tribology performance as a lubricant additive for liquid paraffin

Author:
Mengxin Xie; Bingli Pan; Ning Li; Shuang Zhao; Junjiang Yan; Shihao Guo; Zhe Chen; Honggang Wang
Source:
RSC advances 2022 v.12 no.5 pp. 2759-2769
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; chemical composition; density functional theory; direct contact; energy; energy-dispersive X-ray analysis; friction; graphene; liquids; lubricants; lubrication
Abstract:
... The purpose of this study is to prepare graphene/FeOCl (G/FeOCl) heterojunctions via a microwave-pyrolysis approach and probe into the synergistic lubrication of G with FeOCl in liquid paraffin (LP). The morphology and chemical composition of specimens were analysed by utilizing scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), Fourier transform ...
DOI:
10.1039/d1ra06650a

6. 3D reactive inkjet printing of aliphatic polyureas using in-air coalescence technique

Author:
Maciej Zawadzki; Krzysztof Zawada; Sebastian Kowalczyk; Andrzej Plichta; Jan Jaczewski; Tomasz Zabielski
Source:
RSC advances 2022 v.12 no.6 pp. 3406-3415
ISSN:
2046-2069
Subject:
anisotropy; brittleness; modulus of elasticity; polymers; printers; propylene glycol; temperature
Abstract:
... An in-flight coalescence reactive inkjet printer has been developed to facilitate the in-air collision of two reactive microdroplets. This way precise volumes of reactive inks can be mixed and subsequently deposited on the substrate to produce the desired product by polymer synthesis and patterning in a single step. In this work, we validate the printer capabilities by fabrication of a series of 3 ...
DOI:
10.1039/d1ra07883f

7. 4,4′-Dimethoxybenzhydryl substituent augments performance of bis(imino)pyridine cobalt-based catalysts in ethylene polymerization

Author:
Shi-Fang Yuan; Luyao Wang; Yi Yan; Tian Liu; Zygmunt Flisak; Yanping Ma; Wen-Hua Sun
Source:
RSC advances 2022 v.12 no.25 pp. 15741-15750
ISSN:
2046-2069
Subject:
X-ray diffraction; catalysts; cobalt; ethylene; geometry; imines; molecular weight; nitrogen; polyethylene; polymerization; pyridines
Abstract:
... A series of cobalt complexes with bis(imino)pyridine derivatives featuring unsymmetrical substitution with bulky groups has been synthesized and characterized. The molecular structures of two representatives have been determined by the single-crystal X-ray diffraction study, revealing distorted tetrahedral geometry with different degrees of steric hindrance imparted by the two inequivalent aryl gr ...
DOI:
10.1039/d2ra01547a

8. 5-N-Arylaminothiazoles with pyridyl groups and their first-row transition metal complexes: synthesis, photophysical properties, and Zn sensing

Author:
Khurnia Krisna Puji Pamungkas; Toshifumi Maruyama; Toshiaki Murai
Source:
RSC advances 2022 v.12 no.23 pp. 14698-14706
ISSN:
2046-2069
Subject:
X-radiation; absorption; chlorine; ligands; nickel; nitrogen; thiazoles; zinc
Abstract:
... A series of 5-N-arylaminothiazoles were synthesized with facile diversity-oriented synthesis from readily available starting materials via the reaction of thioamide dianions and thioformamides. The introduction of various substituents at the 2-position of a thiazole ring (i.e., 2-pyridyl, 4-methylpyridyl, and phenyl groups) and on the nitrogen atom (i.e., p-tolyl and phenyl groups) significantly i ...
DOI:
10.1039/d2ra01694j

9. ALD based nanostructured zinc oxide coated antiviral silk fabric

Author:
Udit Kumar; Candace R. Fox; Corbin Feit; Elayaraja Kolanthai; Jeremy Sheiber; Yifei Fu; Sushant Singh; Parag Banerjee; Griffith D. Parks; Sudipta Seal
Source:
RSC advances 2022 v.12 no.30 pp. 19327-19339
ISSN:
2046-2069
Subject:
COVID-19 infection; Severe acute respiratory syndrome coronavirus 2; antibacterial properties; films (materials); lighting; nanofibers; pathogenicity; public health; research and development; respiratory system; safety equipment; sample size; silk fabric; viruses; white light; zinc oxide
Abstract:
... The COVID-19 pandemic has underscored the importance of research and development in maintaining public health. Facing unprecedented challenges, the scientific community developed antiviral drugs, virucides, and vaccines to combat the infection within the past two years. However, an ever-increasing list of highly infectious SARS-CoV-2 variants (gamma, delta, omicron, and now ba.2 stealth) has exace ...
DOI:
10.1039/d2ra02653h

10. Ab initio investigation of electronic structure and optical properties of IrSn₄

Author:
Thi Ly Mai; Vinh Hung Tran
Source:
RSC advances 2022 v.12 no.28 pp. 17882-17888
ISSN:
2046-2069
Subject:
measurement; morphs; optical properties; superconductivity; temperature
Abstract:
... We have examined the electronic structure and optical properties of intermetallic IrSn₄ for three polymorphic modifications, α-IrSn₄, β-IrSn₄, and γ-IrSn₄, utilizing the first-principles PAW-PBEsol-GGA and FP-LAPW-LSDA methods. The obtained electronic structure data reveal clear-cut differences between α-IrSn₄ and the remaining morphs. This observation may be used to explain the appearance of supe ...
DOI:
10.1039/d2ra01672a

11. Acetylene containing 2-(2-hydrazinyl)thiazole derivatives: design, synthesis, and in vitro and in silico evaluation of antimycobacterial activity against Mycobacterium tuberculosis

Author:
Lakshmi Haritha Bharathi Maganti; Deepthi Ramesh; Balaji Gowrivel Vijayakumar; Mohd Imran K. Khan; Arunkumar Dhayalan; Jayabal Kamalraja; Tharanikkarasu Kannan
Source:
RSC advances 2022 v.12 no.14 pp. 8771-8782
ISSN:
2046-2069
Subject:
Mycobacterium tuberculosis; acetylene; antibacterial properties; computer simulation; cytotoxicity; humans; kidneys; rifampicin; thiazoles
Abstract:
... Mycobacterium tuberculosis resistance to commercially available drugs is increasing day by day. To address this issue, various strategies were planned and are being implemented. However, there is a need for new drugs and rapid diagnostic methods. For this endeavour, in this paper, we present the synthesis of acetylene containing 2-(2-hydrazinyl) thiazole derivatives and in vitro evaluation against ...
DOI:
10.1039/d2ra00928e

12. Achieved negative differential resistance behavior of Si/B-substituted into a C₆ chain sandwiched between capped carbon nanotube junctions

Author:
Najmeh Janatipour; Zabiollah Mahdavifar; Siamak Noorizadeh; Georg Schreckenbach
Source:
RSC advances 2022 v.12 no.3 pp. 1758-1768
ISSN:
2046-2069
Subject:
behavioral resistance; carbon nanotubes; density functional theory; electric potential difference
Abstract:
... Electronic transport properties of a pristine C₆ chain and Si/B-substituted into the C₆ chain sandwiched between two (5, 5) capped carbon nanotube electrodes were investigated through first-principles calculations based on non-equilibrium Green's functions (NEGF) conjugated with density functional theory (DFT). Si and B substitutions will affect the I–V curve of a pristine C₆ chain. In the I–V cha ...
DOI:
10.1039/d1ra08810f

13. Acidity modifications of nanozeolite-Y for enhanced selectivity to olefins from the steam catalytic cracking of dodecane

Author:
Emad N. Shafei; Ahmad Masudi; Zain H. Yamani; Oki Muraza
Source:
RSC advances 2022 v.12 no.28 pp. 18274-18281
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; acidity; aluminum oxide; ammonia; catalysts; crystallization; desorption; ethylene; ion exchange; nuclear magnetic resonance spectroscopy; pyridines; silica; sodium; steam; temperature; zeolites
Abstract:
... Nanozeolite-Y was synthesized in the absence of a templating agent with several modification methods. The parent nanozeolite-Y was prepared with different sodium (Na) contents and crystallization conditions. Then, the parent nanozeolite-Y was modified by ion exchange, calcination, and steam treatment. The treatment caused insignificant changes to the ratio of alumina and silica but altered the zeo ...
DOI:
10.1039/d2ra02184f

14. Acridine-based dyes as high-performance near-infrared Raman reporter molecules for cell imaging

Author:
Jiasheng Du; Jinming Li; Yuzhan Li; Dong Wang; Hui Cao; Wanli He; Yang Zhou
Source:
RSC advances 2022 v.12 no.6 pp. 3380-3385
ISSN:
2046-2069
Subject:
Raman spectroscopy; bioimaging; dyes; exhibitions; gold; in vitro studies
Abstract:
... A surface-enhanced Raman scattering (SERS) nanoprobe has been proven to be a promising tool for near-infrared (NIR) biomedical imaging and diagnosis because of its high sensitivity and selectivity. However, the development of NIR SERS reporters has been a bottleneck impeding the preparation of ultrasensitive SERS probes. Herein, we report the design and synthesis of a series of SERS reporters in t ...
DOI:
10.1039/d1ra08827k

15. Activation of the CP bond in phosphanylphosphaalkenes (CP–P bond system) in the reaction with nucleophilic reagents: MeLi, nBuLi and tBuLi

Author:
Aleksandra Ziółkowska; Natalia Szynkiewicz; Łukasz Ponikiewski
Source:
RSC advances 2022 v.12 no.18 pp. 10989-10996
ISSN:
2046-2069
Subject:
Lewis bases; ambient temperature; biphenyl; phosphorus; tetrahydrofuran
Abstract:
... Three reactions of phosphanylphosphaalkene (1) with nucleophiles were performed to activate the diphosphorus monomer. We observed similar results in the reactions with MeLi and nBuLi, in which the P–P bond is cleavaged and triphosphorus systems [P(Me)₂–CH(biph)–CH(biph)–P–(PtBu₂)]⁻ (1a′′) and [P(nBu)₂–CH(biph)–CH(biph)–P–(PtBu₂)]⁻ (1b′′), respectively, are formed depending on the nucleophilic reag ...
DOI:
10.1039/d1ra09215d

16. Adsorption of CO over the Heusler alloy CrCoIrGa(001) surface: first-principles insights

Author:
Abdelazim M. Mebed; Muhammad Mushtaq; Muhammad Faizan; Riadh Neffati; Amel Laref; Sumegha Godara; Sana Maqbool
Source:
RSC advances 2022 v.12 no.28 pp. 17853-17863
ISSN:
2046-2069
Subject:
adsorption; alloys; energy; magnetism
Abstract:
... In this study, the adsorption of CO molecule over (001) surface of the Heusler alloy CrCoIrGa, has been investigated using DFT+U calculations. It is demonstrated that, after relaxation, the (001) surface retains the bulk atomic positions, exhibiting no apparent surface reconstruction. Owing to the emergence of unsaturated bonds at the surface, the surface layer atoms are found to carry more spin-p ...
DOI:
10.1039/d2ra03043h

17. Adsorption–desorption nano-aptasensors: fluorescent screening assays for ochratoxin A

Author:
Velu Ranganathan; Spencer Boisjoli; Maria C. DeRosa
Source:
RSC advances 2022 v.12 no.22 pp. 13727-13739
ISSN:
2046-2069
Subject:
aptasensors; carbon nanotubes; detection limit; diagnostic techniques; fluorescence; ochratoxin A; oligonucleotides
Abstract:
... In this study, a FRET-based fluorescent aptasensor for the detection of ochratoxin A (OTA) was optimized based on the quenching efficiency of single-walled carbon nanotubes (SWCNTs) and the binding affinity of aptamers. OTA aptamers were conjugated with quantum dots and adsorbed to the surface of both acid-modified and unmodified SWCNTs. The maximum fluorescence quenching efficiency of the SWCNTs ...
DOI:
10.1039/d2ra00026a

18. Advanced applications of cerium oxide based nanozymes in cancer

Author:
Na Feng; Ying Liu; Xianglin Dai; Yingying Wang; Qiong Guo; Qing Li
Source:
RSC advances 2022 v.12 no.3 pp. 1486-1493
ISSN:
2046-2069
Subject:
Alzheimer disease; biocompatibility; biotechnology; ceric oxide; enzymes; free radicals; industry; inflammation; magnetism; neoplasms; photochemotherapy; photothermotherapy; radiotherapy; rheumatoid arthritis; value added
Abstract:
... Cerium oxide nanozymes have emerged as a new type of bio-antioxidants in recent years. CeO₂ nanozymes possess enzyme mimetic activities with outstanding free radical scavenging activity, facile synthesis conditions, and excellent biocompatibility. Based on these extraordinary properties, use of CeO₂ nanozymes has been demonstrated to be a highly versatile therapeutic method for many diseases, such ...
DOI:
10.1039/d1ra05407d

19. Advanced titanium dioxide fluidizable nanowire photocatalysts

Author:
Kevin Reilly; Babak Adeli; Baizeng Fang; David P. Wilkinson; Fariborz Taghipour
Source:
RSC advances 2022 v.12 no.7 pp. 4240-4252
ISSN:
2046-2069
Subject:
absorption; fluidized beds; glass; mass transfer; nanorods; nanowires; photocatalysis; photocatalysts; slurries; titanium dioxide
Abstract:
... In photocatalytic water splitting, fluidization is known to minimize the adverse effects of mass-transfer, poor radiation distribution, parasitic back-reactions and photocatalyst handling difficulties, which limit the scalability of immobilized-film and suspended slurry photocatalysts. Fluidization of one-dimensional TiO₂ photocatalyst particles, such as nanorods, -wires and -ribbons, is highly de ...
DOI:
10.1039/d1ra07681g

20. Advances and emerging challenges in MXenes and their nanocomposites for biosensing applications

Author:
Zaheer Ud Din Babar; Bartolomeo Della Ventura; Raffaele Velotta; Vincenzo Iannotti
Source:
RSC advances 2022 v.12 no.30 pp. 19590-19610
ISSN:
2046-2069
Subject:
biochemical compounds; biocompatibility; biocompatible materials; biosensors; chemical species; hydrophilicity; magnetism; nanocomposites; new family; oxidation; oxidative stability; surveys
Abstract:
... Two-dimensional materials have unique properties and their better functionality has created new paradigms in the field of sensing. Over the past decade, a new family of 2D materials known as MXenes has emerged as a promising material for numerous applications, including biosensing. Their metallic conductivity, rich surface chemistry, hydrophilicity, good biocompatibility, and high anchoring capaci ...
DOI:
10.1039/d2ra02985e