Showing posts with label UV. Show all posts
Showing posts with label UV. Show all posts

Friday, 7 March 2025

Synergistic Effects of Synthesized Copper Nanoparticles on Escherichia coli and Staphylococcus aureus | Chapter 7 | Chemistry and Biochemistry: Research Progress Vol. 3

Research in nanomaterials has achieved considerable attention because of their unique properties and numerous applications in different areas. The synthesis of metal nanoparticles has gained significant attention due to their diverse applications. Copper nanoparticles, known for their unique properties, cost-effective production, and wide-ranging uses in catalysis, antimicrobial activity, cooling fluids, and conductive inks, have been a major focus of research. This study compares the stability and antibacterial efficacy of biologically and chemically synthesized copper nanoparticles of two distinct nanometer scales. In chemical synthesis, copper sulfate serves as the precursor, ascorbic acid (vitamin C) as the reducing agent, and polyethylene glycol (PEG) as the capping agent. In biological synthesis, the aqueous root bark extract of Sansevieria trifasciata, valued for its medicinal properties, acts as both the reducing and capping agent. The synthesized Cu-NPs were characterized using UV-Vis spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS) to determine their size, structure, and composition. Their antibacterial activity was assessed by evaluating inhibition zones against different microbial strains. It can be concluded that the copper nanoparticles synthesized by bio-reduction technique are well-dispersed, within the nanometer range and it is of greater stability compared to that of the chemically synthesized copper nanoparticles.

 

Author (s) Details

 

A. Leema Rose
PG and Research Department of Chemistry, Holy Cross College, Affiliated to Bharathidasan University, Tiruchirappalli, Tamil Nadu, India.

 

F. Janeeta Priya
PG and Research Department of Chemistry, Holy Cross College, Affiliated to Bharathidasan University, Tiruchirappalli, Tamil Nadu, India.

 

S. Vidhya
PG and Research Department of Chemistry, Holy Cross College, Affiliated to Bharathidasan University, Tiruchirappalli, Tamil Nadu, India.

 

Please see the book here:- https://doi.org/10.9734/bpi/cbrp/v3/4396

Tuesday, 12 March 2024

Steroidal Saponins Isolated and Purified from Leaves Extract of Asparagus racemosus (Family – Asparagaceae) and its UV, IR, NMR and Mass Spectrum Analysis | Chapter 8 | Advanced Concepts in Pharmaceutical Research Vol. 6

Asparagus racemosus is an important medicinal plant Its medicinal usages has been reported in Indian and British pharmacopoeias. Herbs made by the Asparagus racemosus are highly effective in problems which related with female reproductive system and other diseases. The Fresh plant leaves were collected from Govt. Science & Commerce College, Benazir, Bhopal (M.P.) in July-September 2012. Qualitative preliminary phytochemical analysis was performed on the crude extract for the presence of bioactive compounds. The pure compound isolated to the Column chromatography and purified this compound by Thin Layer Chromatography with suitable solvent systems and visualizing reagents.

Structure elucidation of pure compound has been accomplished through the extensive use of UV-Visible, IR, 1HNMR and Mass spectroscopy. Isolated compound was gave a positive test Liebermann-Burchard test for steroidal saponin and the compound obtained as dark brownish amorphous powder as a single spot with 0.37 Rf value. Phytochemistry and spectral analysis showed the presence of steroidal saponin in Asparagus racemosus leaves extract. It is strongly believed that the phytochemical and various biological properties of the extracts might provide detailed evidence for the use of this plant in different medicines.


Author(s) Details:

Namrata S. Rajawat,
Department of Applied Chemistry, SATI, Vidisha (M.P), India.

Please see the link here: https://stm.bookpi.org/ACPR-V6/article/view/13466

Friday, 16 June 2023

Enriched Antibacterial Activity of Zinc Oxide Nanoparticles Synthesized Using Opuntia ficus Indica Fruit Extract | Chapter 6 | Novel Aspects on Pharmaceutical Research Vol. 3

 In order to improve the antibacterial venture, Zinc Oxide (ZnO) nanoparticles were green synthesized by Opuntia ficus indica crop aqueous extract. ZnO is an antimicrobial agent and is active to inhibit two together gram beneficial and gram negative microorganisms. The phytochemicals in the plant extract function as stabilizers and reducing powers. In order to investigate the surface study of animal and optical characteristics, SEM and UV-Vis spectroscopy were secondhand.  Zinc oxide nanoparticles accompanying a light brown color show an incorporation band at 445 nm as a result of surface plasmon reverberation.  FTIR and EDX results supported the life of phytochemicals in the produced compounds. The average particle intensity, according to an XRD test, was 21.75 nm. The size of nanoparticles was proved to decrease with climbing temperature and expected smaller in green combining than in chemical synthesis. Aggregated clusters of tinier nanoparticles can be visualized in SEM images. The sample has revised antibacterial exercise.

Author(s) Details:

G. Indramahalakshmi,
Faculty of Chemistry, Cardamom Planters Association College, Bodinayakanur – 625513, India.

Please see the link here: https://stm.bookpi.org/NAPR-V3/article/view/10881

Friday, 23 December 2022

Green Synthesis of Copper Oxide Nano Particles and their Characterization| Chapter 5 | Cutting Edge Research in Biology Vol. 2

 The combination of nanoparticles using green technologies has taken a lot of consideration in recent years. The study inquires to synthesise copper oxide nanoparticles at range temperature using Catharanthus Roseus leaf extract. This process is 100% green, accompanying no hazardous or injurious solvents. Copper sulphate dehydrate (CuSO4.5H2O) and Catharanthus Roseus leaf extract were linked to create copper group of chemical elements micro atoms. By using XRD, FT-IR, and UV-vis spectroscopy, the bio-combined copper oxide nano-atoms were examined and judged.

Author(s) Details:

S. Nazarath Begum,
Department of Physics, Sadakathullah Appa College, Tirunelveli-627011, India.

Please see the link here: https://stm.bookpi.org/CERB-V2/article/view/8887

Thursday, 27 October 2022

Anti-proliferative Effect on Breast Cancer Cell Line via Novel Biogenic Peptide Functionalized Silver Nanoparticles Synthesized from Aloin | Chapter 3 | Challenges and Advances in Pharmaceutical Research Vol. 8

 The current study aims to synthesise tableware( Ag) nanoparticles using Aloin with a focus on antibacterial, antioxidant, and anticancer exertion. The biosynthesis of nanoparticles has been designed as a profitable and environmentally friendly volition to chemical and physical styles.

The UV-Visible diapason was used to determine the tableware nanoparticles, which were synthesised using Aloin. Scanning electron microscopy( SEM), zeta eventuality, and dynamic light scattering( DLS) were used to further characterise it. The Aloin was also subordinated to a Fourier transfigure infraredanalysis.The immersion peak at 439nm in the UV-Visible immersion diapason of the synthesised tableware nanoparticles demonstrates the conformation of tableware nanoparticles in result. The shape of the Ag nanoparticles was revealed by SEM analysis. The IR gamuts revealed that Aloin excerpt contains six functional groups. The nanoparticles synthesised are largely stable, with an average flyspeck size of130.7 nm, as verified by zeta eventuality and DLS analysis. The nanoparticles produced were antibacterial and antioxidant in nature. It has a strong cytotoxic effect on bone cancer cell lines. According to the current study, the conflation route can be used on a large scale in the food assiduity for food preservation and these Ag nanoparticles can be used for its remedial purposes to develop a new medicine to treat cancer because it isn't dependent on factors like high energy, dragged medication times, and specialised outfit.

Author(s) Details:

F. Janeeta Priya,
PG & Research Department of Chemistry, Holy Cross College, (Affiliated to Bharathidasan University), Tiruchirappalli, Tamil Nadu, India.

A. Leema Rose,
PG & Research Department of Chemistry, Holy Cross College, (Affiliated to Bharathidasan University), Tiruchirappalli, Tamil Nadu, India.

S. Vidhya,
PG & Research Department of Chemistry, Holy Cross College, (Affiliated to Bharathidasan University), Tiruchirappalli, Tamil Nadu, India.

A. Arputharaj,
Department of Electronics, St. Joseph’s College, (Affiliated to Bharathidasan University), Tiruchirappalli, Tamil Nadu, India.

Please see the link here: https://stm.bookpi.org/CAPR-V8/article/view/8491


Friday, 11 February 2022

A Novel Photosynthesis of Carboxymethyl Starch-Stabilized Silver Nanoparticles: Experimental Investigation | Chapter 06 | Innovations in Science and Technology Vol. 4

 For the first time, the water soluble photoinitiator (PI) 4-(trimethyl ammonium methyl) benzophenone chloride was employed to make silver nanoparticles (AgNPs). Biosynthesis is another environmentally friendly way to make AgNPs. The PI/UV system, carboxymethyl starch (CMS), silver nitrate, and water were used in a new green synthesis technique. A mechanism was proposed for the reduction of silver ions to AgNPs using the PI/UV system as well as freshly formed aldehydic groups. UV-vis spectra and TEM of AgNPs colloidal solution were used to evaluate the synthesis process. CMS, PI, and AgNO3 concentrations of 10 g/L, 1 g/L, and 1 g/L, respectively; 40°C; 60 min; pH 7; and a material : liquor ratio of 1 : 20 yielded the greatest absorbance. The AgNPs were found to be stable in aqueous solution for three weeks at room temperature (25°C) and exhibit a round shape morphology. The diameters of produced AgNPs ranged from 1 to 21 nm, with the highest counts percent for particles measuring 6–10 and 1–3 nm, respectively.


Author(S) Details

Manal A. El-Sheikh
National Research Centre, Textile Industries Research Institute, El-Behouth Street, Dokki, Giza, P.O. 12622, Egypt and Chemistry Department, College of Science and Arts, AlQurayyat, Jouf University, Kingdom of Saudi Arabia.

View Book:- https://stm.bookpi.org/IST-V4/article/view/5559

Wednesday, 24 November 2021

Assessment of Spectroscopic Characterization of Pure and Malachite Green Doped Polysulfone Samples by X-Ray Diffraction (XRD), UV- Visible and Scanning Electron Microscopy (SEM) Techniques | Chapter 8 | Recent Trends in Chemical and Material Sciences Vol. 4

 Polymers have strong dielectric properties when subjected to a field-temperature treatment because they may permanently store charge. The electret state and carrier mobility of polymers can be significantly changed by impregnating them with suitable dopants. When a low molecular weight organic component is doped into a polymer, the formation of a charge transfer connection between the acceptor and donor molecules improves the polymer's electrical conductivity. Spectroscopic techniques are used to show how the structure of a pure polymer changes as the impurity ratio rises. In this experiment, the host polymer is polysulfone, while the dopant is malachite Green. In order to prepare samples of pure and malachite green doped Polysulfone in the form of foil, isothermal immersion was used. 4 gm Polysulfone was dissolved in 50 ml Dimethyl farmamide (DMF) solvent for the pure sample, whereas 15, 35, 65, and 110 mg Malachite Green were mixed with 4 gm Polysulfone for the doped sample, accordingly. The structural and optical characterization of these pure and doped samples was investigated using X-Ray Diffraction Spectroscopy (XRD), UV- Visible Spectroscopy, and Scanning Electron Microscope (SEM) techniques. Sharp and diffused peaks appear in both pure and doped polysulfone XRD diffractograms, corresponding to the crystalline and amorphous portions of the polymer, respectively. Due to the increase in doping ratio, the maximum intensity for pure samples is 18.380, while the maximum intensity for doped samples is 18.610, 18.890, 20.520, and 21.110, respectively, when studying the change of intensity with two theta angles. This finding supports the enhancement of polysulfone's amorphous character. According to a UV-visible spectroscopy study, the transmittance of pure polysulfone decreases as the ratio of doping increases. In this situation, there is a clear decline in the intensity of transmittance of the pure sample, as well as some additional peaks. This activity shows that Charge Transfer Complexes (CTC) form between the donor and acceptor molecules, signifying that the Polysulfone polymer's electrical properties have improved. Scanning Electron Microscopy was used to investigate the micro structural characteristics of clean and doped materials (SEM). The homogeneous dispersion of dopant malachite green and polysulfone is demonstrated in this work. The goal of this research is to see how the charge storage capacity of the polysulphone improves with different Malachite Green doping ratios.


Author(S) Details

Rashmi J. Nayak
Department of P. G. Studies and Research in Physics and Electronics, Rani Durgavati Vishwavidyalaya, Jabalpur, M.P., India.

P. K. Khare
Department of P. G. Studies and Research in Physics and Electronics, Rani Durgavati Vishwavidyalaya, Jabalpur, M.P., India.

J. G. Nayak
Department of Civil Engineering, Sandip Institute of Technology & Research Centre, Nashik, Maharashtra, India.

View Book:- https://stm.bookpi.org/RTCAMS-V4/article/view/4800


Thursday, 5 November 2020

Advanced Studies of Photo Degradation on Ziram Using Homogeneous and Heterogeneous Photocatalyst | Chapter 12 | Recent Developments in Engineering Research Vol. 7

 Effluent discharge from the processing or formulating industries of pesticides and agricultural runoff are major sources of environmental pesticides, and wastewater from the pesticide industry is a major treatment for the aquatic system. Various photodegradation techniques via Solar, Solar / TiO2, UV and UV / TiO2 processes have carried out photocatalytic degradation of Ziram on wastewater. In order to improve the operating parameters, such as pH , initial concentration, catalyst dosage and contact time, studies have also been carried out. The UV / TiO2 photo catalytic process was found to be more efficient than any other methods studied for Ziram degradation. For initial pH 5, initial Ziram concentration of 20 mg / l and TiO2 dosage of 1 g / l, the maximum degradation of Ziram at 300 minutes was 92.7 percent. For UV / TiO2, the kinetic constant (k) was found to be 9.62 times greater than the solar / TiO2 method and 8.19 times greater than the UV method.


Author(s) Details

Dr. K. Ramadevi
Department of Civil Engineering, Kumaraguru College of Technology, Coimbatore, India.

Mrs. S. K. Shivaranjani
Department of Civil Engineering, Kumaraguru College of Technology, Coimbatore, India. 

 


View Book :-
https://bp.bookpi.org/index.php/bpi/catalog/book/299

Monday, 2 November 2020

Advanced Studies of Photo Degradation on Ziram Using Homogeneous and Heterogeneous Photocatalyst | Chapter 12 | Recent Developments in Engineering Research Vol. 7

 

Effluent discharge from the processing or formulating industries of pesticides and agricultural runoff are major sources of environmental pesticides, and wastewater from the pesticide industry is a major treatment for the aquatic system. Various photodegradation techniques via Solar, Solar / TiO2, UV and UV / TiO2 processes have carried out photocatalytic degradation of Ziram on wastewater. In order to improve the operating parameters, such as pH , initial concentration, catalyst dosage and contact time, studies have also been carried out. The UV / TiO2 photo catalytic process was found to be more efficient than any other methods studied for Ziram degradation. For initial pH 5, initial Ziram concentration of 20 mg / l and TiO2 dosage of 1 g / l, the maximum degradation of Ziram at 300 minutes was 92.7 percent. For UV / TiO2, the kinetic constant (k) was found to be 9.62 times greater than the solar / TiO2 method and 8.19 times greater than the UV method.

Author(s) Details

Dr. K. Ramadevi,
Department of Civil Engineering, Kumaraguru College of Technology, Coimbatore, India.

Mrs. S. K. Shivaranjani,
Department of Civil Engineering, Kumaraguru College of Technology, Coimbatore, India.

View Book :- https://bp.bookpi.org/index.php/bpi/catalog/book/299