Bioconjugate synthesis, phytochemical analysis, and optical activity of NiFe2O4 nanoparticles for the removal of ciprofloxacin and Congo red from water

AbstractIn this paper, Jr.NiFe2O4 nanoparticles (NPs) were synthesized first time using the leaves extract of Juglans regia via a straightforward process. The physio and phytochemical analysis of plant confirm the presence of macromolecules which function as bio-reductant and stabilize the nanoparticles. The Jr.NiFe2O4 NPs were characterized by UV–visible, FTIR spectroscopy, PXRD pattern, SEM and TGA/DTA analysis. The nanoparticles proved to be optically active having a value of indirect bandgap of energy in the range of 1.53 eV. The Jr.NiFe2O4 NPs have the ability in scavenging 2,2-diphenyl-1-picrylhydrazyl hydrate (DPPH) free radicals and showed 58.01% ± 1.2% scavenging activity at 100 µg/mL concentrations. The photocatalytic degradation study of ciprofloxacin (CIP) and Congo red (CR) reveals that the highest degradation rate was acquired for CIP using pH = 3, at 254 nm, while 85% of removal rate was analysed for CR. The kinetic studies in case of CR removal followed pseudo-first-order model with thermodynamic parameters (∆G° = − 5.87 kJ mol−1 K, ΔH° = 1393.50 kJ mol−1 and ΔS° = 22.537 kJ mol−1 K) with error analysis. Overall, these data recommend an innovative inspiring application of a plant-mediated synthesis of Jr.NiFe2O4 NPs.

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Bioconjugate Synthesis of NiFe2O4 Using Juglans Regia Leaves Extract: Phytochemical Analysis, Optical Activity, Removal of Ciprofloxacin and Congo Red From Water

10.21203/rs.3.rs-109392/v1 ◽

2020 ◽

Author(s):

Muhammad TAJ ◽

Muneera Alkahtani ◽

Ahmad Raheel ◽

Saima Shabbir ◽

Rida Fatima ◽

...

Keyword(s):

Congo Red ◽

Removal Rate ◽

Juglans Regia ◽

Kinetic Studies ◽

Phytochemical Analysis ◽

Pxrd Pattern ◽

A Value ◽

Dta Analysis ◽

First Time ◽

Cr Removal

Abstract In recent years, the biogenic synthesis of nanoparticle received enormous attention due to simple and eco-friendly path. Here in Jr.NiFe2O4 nanoparticles (NPs) were synthesized first time using the leave extract of Juglans regia via a straightforward process. The physio and phytochemical analysis of plant confirm the presence of macromolecules which function as bio-reductant and stabilize the nanoparticles. The Jr.NiFe2O4 NPs were characterized by UV-visible, FTIR spectroscopy, PXRD pattern, SEM and TGA/ DTA analysis. The nanoparticles proved to be optically active having a value of indirect bandgap of energy in the range of 1.53 eV. Besides, the ciprofloxacin (CIP) and Congo red (CR) degradation ability of Jr.NiFe2O4 NPs were also discussed. It is seen that the highest degradation rate was acquired for CIP using pH = 3, at 254 nm, while 85 % of removal rate was analysed for CR. The kinetic studies in case of CR removal followed pseudo-first-order. Overall, these data recommend an innovative inspiring application of a plant-mediated synthesis of Jr.NiFe2O4 NPs.

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Histochemical and Phytochemical Analysis of Lamium album subsp. album L. Corolla: Essential Oil, Triterpenes, and Iridoids

Molecules ◽

10.3390/molecules26144166 ◽

2021 ◽

Vol 26 (14) ◽

pp. 4166

Author(s):

Agata Konarska ◽

Elżbieta Weryszko-Chmielewska ◽

Anna Matysik-Woźniak ◽

Aneta Sulborska ◽

Beata Polak ◽

...

Keyword(s):

Essential Oil ◽

High Performance ◽

Glandular Trichomes ◽

Gas Chromatography Mass Spectrometry ◽

Phytochemical Analysis ◽

Lipophilic Compounds ◽

Histochemical Tests ◽

Microscopy Techniques ◽

Trichome Types ◽

First Time

The aim of this study was to conduct a histochemical analysis to localize lipids, terpenes, essential oil, and iridoids in the trichomes of the L. album subsp. album corolla. Morphometric examinations of individual trichome types were performed. Light and scanning electron microscopy techniques were used to show the micromorphology and localization of lipophilic compounds and iridoids in secretory trichomes with the use of histochemical tests. Additionally, the content of essential oil and its components were determined using gas chromatography-mass spectrometry (GC-MS). Qualitative analyses of triterpenes carried out using high-performance thin-layer chromatography (HPTLC) coupled with densitometric detection, and the iridoid content expressed as aucubin was examined with spectrophotometric techniques. We showed the presence of iridoids and different lipophilic compounds in papillae and glandular and non-glandular trichomes. On average, the flowers of L. album subsp. album yielded 0.04 mL/kg of essential oil, which was dominated by aldehydes, sesquiterpenes, and alkanes. The extract of the L. album subsp. album corolla contained 1.5 × 10−3 ± 4.3 × 10−4 mg/mL of iridoid aucubin and three triterpenes: oleanolic acid, β-amyrin, and β-amyrin acetate. Aucubin and β-amyrin acetate were detected for the first time. We suggest the use of L. album subsp. album flowers as supplements in human nutrition.

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Hydrothermal Synthesis of Sodalite-Type N-A-S-H from Fly Ash to Remove Ammonium and Phosphorus from Water

Materials ◽

10.3390/ma14112741 ◽

2021 ◽

Vol 14 (11) ◽

pp. 2741

Author(s):

Pengcheng Lv ◽

Ruihong Meng ◽

Zhongyang Mao ◽

Min Deng

Keyword(s):

Fly Ash ◽

Adsorption Capacity ◽

Removal Rate ◽

Kinetic Studies ◽

Solute Concentration ◽

Raw Material ◽

Sodium Aluminosilicate ◽

Equilibrium Data ◽

One Step ◽

Ft Ir

In this study, the hydrated sodium aluminosilicate material was synthesized by one-step hydrothermal alkaline desilication using fly ash (FA) as raw material. The synthesized materials were characterized by XRD, XRF, FT-IR and SEM. The characterization results showed that the alkali-soluble desilication successfully had synthesized the sodium aluminosilicate crystalline (N-A-S-H) phase of sodalite-type (SOD), and the modified material had good ionic affinity and adsorption capacity. In order to figure out the suitability of SOD as an adsorbent for the removal of ammonium and phosphorus from wastewater, the effects of material dosing, contact time, ambient pH and initial solute concentration on the simultaneous removal of ammonium and phosphorus are investigated by intermittent adsorption tests. Under the optimal adsorption conditions, the removal rate of ammonium was 73.3%, the removal rate of phosphate was 85.8% and the unit adsorption capacity reached 9.15 mg/L and 2.14 mg/L, respectively. Adsorption kinetic studies showed that the adsorption of ammonium and phosphorus by SOD was consistent with a quasi-secondary kinetic model. The adsorption isotherm analysis showed that the equilibrium data were in good agreement with the Langmuir and Freundlich model. According to thermodynamic calculations, the adsorption of ammonium and phosphorus was found to be a heat-absorbing and spontaneous process. Therefore, the preparation of SOD by modified FA has good adsorption properties as adsorbent and has excellent potential for application in the removal of contaminants from wastewater.

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Kinetic studies of Congo Red Photodegradation on the hetero-system CoAl2O4/ZnO with a stirred reactor under solar light

Journal of Environmental Chemical Engineering ◽

10.1016/j.jece.2021.105572 ◽

2021 ◽

Vol 9 (4) ◽

pp. 105572

Author(s):

S. Boudiaf ◽

N. Nasrallah ◽

M. Mellal ◽

B. Belhamdi ◽

C. Belabed ◽

...

Keyword(s):

Congo Red ◽

Kinetic Studies ◽

Solar Light ◽

Stirred Reactor

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Postmoney theory: value function in the domain of postmoney

foresight ◽

10.1108/fs-06-2018-0069 ◽

2018 ◽

Vol 20 (5) ◽

pp. 554-570

Author(s):

Boyan Christov Ivantchev

Keyword(s):

Social Impact ◽

Value Function ◽

Human Life ◽

Intrinsic Value ◽

Panel Study ◽

Economic Research ◽

Strong Base ◽

Content Type ◽

A Value ◽

First Time

Purpose The purpose of this study is to research the latest quantitative and qualitative transformations of money and its interaction with the market economy and societies in terms of their influence on the inner nature of money and its transformation from a simple tool to an aim per se, i.e. postmoney. Transforming the perception of the intrinsic value and “soul” of the money into the postmoney, influenced by the rising longevity and wide expectation for the ability to scientifically prolong the human life, will be discussed. This transformation will be confirmed by analysing the results from a national representative sociological survey (panel study with sample size n = 1,000). Design/methodology/approach The author uses the following philosophical methodological approaches – comparative-constructive, phenomenological, cognitive and deconstructive analysis. Findings The objective and qualitative reasons offered by the postmoney theory (PMT) for the transformation of money into postmoney, are related to the being of temporality, as well as to technologization and the sixth factor of production, scientific exponentiality and mental changes in the human being. A current postmoney survey gives a strong base to believe that the perception of an intrinsic value of postmoney changes the shape of a value function – from logarithmic to linear or even stochastic. This is the reason to believe that increasing of a postmoney quantity will lead to a qualitative transformation and psychological increase of postmoney sensitivity. Research limitations/implications The author intends to expand the postmoney survey on the international level so to confirm local findings. Practical implications Postmoney survey might be used as a powerful tool in creating and legalizing non-monistic money based on blockchain technologies and philosophical and socio-economic research of the postmoney issue. Social implications The future of money is of great importance for the exponentiality of the socio-economic environment and societies. Social impact of the money will be inevitably rising in the domain of postmoney perception. Originality/value The author of the current paper coined for the first-time notion of postmoney and now is expanding research developing PMT. As per the best knowledge of the author, shape of the curve of value function was not questioned and believes it might be of help to better understand the money phenomenon.

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Infra-red chemiluminescence II. Spectroscopic data

Proceedings of the Royal Society of London Series A - Mathematical and Physical Sciences ◽

10.1098/rspa.1960.0206 ◽

1960 ◽

Vol 258 (1295) ◽

pp. 564-575 ◽

Cited By ~ 7

Keyword(s):

Transition Probabilities ◽

Molecular Spectroscopy ◽

Radiative Transition ◽

Absorption Data ◽

A Value ◽

Interaction Factor ◽

Infra Red ◽

Rotational Distribution ◽

Vibration Rotation ◽

First Time

The technique described in part I has been used to obtain constants of interest in molecular spectroscopy. The vibration-rotation interaction factor, F for HCl has been evaluated from the infra-red emission spectrum. The critical parameter in F is θ = M 0 / M 1 r e , where M 0 and M 1 are the first two coefficients in the electric dipole moment expansion about the equilibrium internuclear distance r e . A value of θ = + 1.12 ± 0.18 has been obtained. It is shown that for molecules with θ = +1 the total band intensity in emission is independent of the rotational distribution in the vibrational state from which the emission occurs. This has been made use of in evaluating radiative transition probabilities. For the HCl v (3-1) transition a value for | R 3 1 | 2 (= 1.60 x 10 -4 debye 2 ) was obtained for the first time. The same method yields a value of | R 2 1 | 2 / | R 2 0 | 2 = 204, in good agreement with an earlier estimate from absorption data.

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Constitution and Modernization of Legislation: Proceedings of the XV International School of Young Legal Scholars (Moscow, May 27 – June 5, 2020)

10.12731/978-5-9516-0874-1 ◽

2020 ◽

Author(s):

A.Ya. Kapustin ◽

I.I. Kucherov ◽

S.A. Sinitsyn ◽

A.I. Kovler ◽

Yu.N. Kashevarova

Keyword(s):

Russian Federation ◽

Comparative Law ◽

International School ◽

International Union ◽

A Value ◽

The Russian Federation ◽

The Government ◽

Legal Understanding ◽

First Time ◽

Epidemiological Situation

Modern constitutional transformations, asserting a “value” legal understanding, actualize theoretical and practical problems of legislative regulation, serve as a prereq- uisite for rethinking the essence, role and significance of law in the life of society, and determine the formulation of a number of issues related, first of all, to the qualitative implementation of novelties. This collection reflects the diversity and depth of scientific discussions of the XV In- ternational school of young legal scholars on the topic “Constitution and modernization of legislation”, which was held by the Institute of legislation and comparative law under the Government of the Russian Federation in cooperation with the International Union of lawyers. In the context of a difficult epidemiological situation related to the spread of corona- virus infection, in order to protect the health of conference participants, the organizing Committee decided to hold the XV School remotely (by correspondence). For the first time, all its scientific events were held online. The participants had a unique opportunity to communicate with the direct developers of amendments to the Constitution of the Russian Federation, present their reports in a new format.

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Direct visualization of a vast cortical calcium compartment in Paramecium by secondary ion mass spectrometry (SIMS) microscopy: possible involvement in exocytosis

Journal of Cell Science ◽

10.1242/jcs.108.5.1895 ◽

1995 ◽

Vol 108 (5) ◽

pp. 1895-1909 ◽

Cited By ~ 4

Author(s):

N. Stelly ◽

S. Halpern ◽

G. Nicolas ◽

P. Fragu ◽

A. Adoutte

Keyword(s):

Mass Spectrometry ◽

Secondary Ion Mass Spectrometry ◽

Membrane Vesicles ◽

Cell Periphery ◽

A Value ◽

External Reference ◽

Ion Mass Spectrometry ◽

First Time ◽

Secondary Ion

The plasma membrane of ciliates is underlaid by a vast continuous array of membrane vesicles known as cortical alveoli. Previous work had shown that a purified fraction of these vesicles actively pumps calcium, suggesting that alveoli may constitute a calcium-storage compartment. Here we provide direct confirmation of this hypothesis using in situ visualization of total cell calcium on sections of cryofixed and cryosubstituted cells analyzed by SIMS (secondary ion mass spectrometry) microscopy a method never previously applied to protists. A narrow, continuous, Ca-emitting zone located all along the cell periphery was observed on sections including the cortex. In contrast, Na and K were evenly distributed throughout the cell. Various controls confirmed that emission was from the alveoli, in particular, the emitting zone was still seen in mutants totally lacking trichocysts, the large exocytotic organelles docked at the cell surface, indicating that they make no major direct contribution to the emission. Calcium concentration within alveoli was quantified for the first time in SIMS microscopy using an external reference and was found to be in the range of 3 to 5 mM, a value similar to that for sarcoplasmic reticulum. After massive induction of trichocyst discharge, this concentration was found to decrease by about 50%, suggesting that the alveoli are the main source of the calcium involved in exocytosis.

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Experimental Investigation and Parametric Optimization in Abrasive Jet Machining on NICKEL 233 Alloy Using WASPAS

Journal of Advanced Manufacturing Systems ◽

10.1142/s021968671950029x ◽

2019 ◽

Vol 18 (04) ◽

pp. 549-561

Author(s):

S. Rajendra Prasad ◽

K. Ravindranath ◽

M. L. S. Devakumar

Keyword(s):

Parametric Optimization ◽

Removal Rate ◽

Optimization Technique ◽

Machining Parameters ◽

Abrasive Jet Machining ◽

Process Pressure ◽

Conflicting Objectives ◽

Machined Parts ◽

Optimal Setting ◽

First Time

Decision of finest machining parameters is very essential factors in any processing of machined parts. This article presents a multi-objective optimization technique, based on WASPAS method toward optimize the machining parameters in abrasive jet machining (AJM) process: pressure, nozzle to tip distance (NTD), and average grain diameter on NICKEL 233 alloy. Three conflicting objectives, Material Removal Rate (MRR), surface roughness (Ra) and taper angle (Ta) are simultaneously considered. The proposed technique weighted aggregated product sum assessment technique is investigation of parametric optimization on AJM process. Its outcome using tool in any ranges of responses in AJM process is the optimal setting of parameters are determined through experiments illustrated. Broad usage of Aerospace industries for NICKEL 233, generating a hole of the machining data first time in this work using AJM will be useful.

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Rindera graeca (Boraginaceae) Phytochemical Profile and Biological Activities

Molecules ◽

10.3390/molecules25163625 ◽

2020 ◽

Vol 25 (16) ◽

pp. 3625

Author(s):

Christos Ganos ◽

Nektarios Aligiannis ◽

Ioanna Chinou ◽

Nikolaos Naziris ◽

Maria Chountoulesi ◽

...

Keyword(s):

Free Radical ◽

Biological Activities ◽

Biological Membrane ◽

3D Structure ◽

Total Phenolic ◽

Phytochemical Analysis ◽

Endemic Plant ◽

Aerial Parts ◽

Potential Applications ◽

First Time

Rindera graeca is a Greek endemic plant of the Boraginaceae family which has never been studied before. Consequently, this study attempted to phytochemically examine the aerial parts of this species. Nine phenolic secondary metabolites were identified, consisting of seven caffeic acid derivatives and two flavonol glucosides, namely rutin and quercetin-3-rutinoside-7-rhamnoside. These flavonoids, together with rosmarinic acid, were isolated via column chromatography and structurally determined through spectral analysis. Quercetin-3-rutinoside-7-rhamnoside is an unusual triglycoside, which is identified for the first time in Rindera genus and among Boraginaceae plants. This metabolite was further examined with thermal analysis and its 3D structure was simulated, revealing some intriguing information on its interaction with biological membrane models, which might have potential applications in microcirculation-related conditions. R. graeca was also analyzed for its pyrrolizidine alkaloids content, and it was found to contain echinatine together with echinatine N-oxide and rinderine N-oxide. Additionally, the total phenolic and flavonoid contents of R. graeca methanol extract were determined, along with free radical inhibition assays. High total phenolic content and almost complete inhibition at experimental doses at the free radical assays indicate a potent antioxidant profile for this plant. Overall, through phytochemical analysis and biological activity assays, insight was gained on an endemic Greek species of the little-studied Rindera genus, while its potential for further applications has been assessed.

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