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Antibacterial activity and spectroscopic characteristics of silver nanoparticles synthesized via plant and invitro leaf-derived callus extracts of Mucuna pruriens (L.) DC
In this paper, we describe the green synthesis of silver nanoparticles (AgNPs) using plant extracts, as well as their structural, optical, and antibacterial activities against Escherichia coli and Bacillus velezensis bacteria. For the study, several sections (root, leaves, and seed) of Mucuna pruriens, an immense medicinal herbal used to treat Parkinson's disease, were evaluated. Also, the seeds were grown in-vitro in the modified Murashige and Skoog's medium and the leaf derived callus supplemented by different phytohormones like picloram (pic), thidiazuron (TDZ), 6-benzylaminopurine (BAP) and 2-isopentenyl adenine (2-iP) were selected for this study. This is the first report of distinct callus obtained from M. pruriens and used for green nanoparticle synthesis. The prepared materials were thoroughly evaluated for structural and optical properties using XRD, FTIR, and UV-Visible spectroscopy. During synthesis, the colour changes from colourless to reddish brown, and the existence of an SPR peak in the absorption spectra confirms the formation of AgNPs. The FTIR spectra reveals the presence of phenolic group and alkyl ether groups, which were responsible for the reduction of silver ions during the green synthesis. The aqueous extracts of plant parts and callus obtained from different hormones showed very poor antibacterial activity. However, the green synthesized nanoparticles fabricated by different plant extracts showed good antimicrobial activity towards E. coli and B. velezensis bacteria. amongst the investigated results, highest antimicrobial activity against E. coli (84.8%) and B. velezensis (78.1%) was shown by AgNPs mediated by leaf extracts respectively followed by 0.5 mg/L pic and 2.0 mg/L BAP callus mediated silver nanoparticle solution. According to the findings, green produced AgNPs are promising candidates for antibacterial applications against E. coli and B. velezensis. 2022 SAAB -
Return efficiency level approach through DuPont analysis in personal care sector /
International Journal Of Management, IT And Engineering, Vol.6, Issue 2, pp.298-304, ISSN: 2249-0558. -
Influence of foreign institutional investments on Indian economy /
Zenth International Journal Of Multidisciplinary Research, Vol.6, Issue 1, pp.106-109, ISSN: 2231-5780. -
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An empirical study on impact of changes in macro economic variables on bond yield curve - Evidence from Indian corporate bond market /
Research Journal Of Finance And Accounting, Vol.6, Issue 11, pp.396-403, ISSN No: 2222-2847 (Online) 2222-1697 (Print) -
Significance of Big Data and Analytics in Higher Education
International Journal of Computer Applications Vol. 68, Issue 14, pp. 21-23, ISSN No. 0975-8887 -
Role of employee value proposition in creating employer brand value for employee attraction and retention
Employee Value Proposition is a set of associations and offerings provided by an organisation in return for the skills, capabilities and experiences an employee brings to the organisation. Employee expectations from the employer is now shifted from monetary to more intrinsic values like rewards, recognition, and flexible work. Understanding the value proposition is vital to devise appropriate human resource strategies for employee attraction and retention. Human resource managers have realised that the communicating the value propositions to the employees is as important as devising them. This has led human resource managers to collaborate with marketing team to develop right communicating strategies to build a lucrative employer brand to attract right talent into the organisation. Previous studies lack focus on dual
outcomes of employer brand. The current study develops an employer brand for internal employees and potential employees. Although the value proposition components remain same for both category of employees, the order of preference differs. The study has used structured questionnaire to
understand the order of preference of value proportion components for
internal and potential employees among generation X, Y and Z. The findings assist human resource managers to use the developed framework to identify the value proposition preferred and develop and communicate the Employee Value Proposition accordingly. The theoretical contribution includes proposing differentiated Employer Brand framework for internal and potential employees. -
Antibacterial composition against psuedomonas aeruginosa and method of preparation thereof /
Patent Number: 201941043986, Applicant: CHRIST (Deemed to be University).
Process for preparing an antibacterial composition against Pseudomonas aeruginosa is disclosed. The process includes carbonising dry leaves of Colocasia esculenta; developing graphene nanomaterials from the carbonized dry leaves of Colocasia esculenta via modified Hummers™ method; and integrating tin oxide (SnO2) nanoparticles with the graphene nanomaterials so as to enhance antibacterial activity against P. aeruginosa and obtain graphene-tin oxide nanocomposite as antibacterial composition. -
A process for synthesis of mixed carbon allotropes /
Patent Number: 201941052829, Applicant: CHRIST (Deemed to be University).
A process for synthesis of novel mixed carbon allotropes is disclosed. The process includes combusting liquid paraffin by a flame via wick; collecting liquid paraffin soot generated during the combustion. The as-harvested liquid paraffin soot comprises of novel mixed carbon allotropes namely H18 carbon and n-diamond blended with Carbon Nano Onions. -
Development of nanocarbon sensors for atropine sulphate from orange peel /
Patent Number: 202041033633, Applicant: A V Ramya.
The present invention provides various facile synthesis routes for simple, low-cost, scalable production of different nanocarbon allotropes from orange peel, for quantitative determination of Atropine Sulphate. The different synthesis methods include microwave pyrolysis of orange peel, acidic oxidation of microwave pyrolyzed orange peel, hydrothermal reaction of acidic oxidized orange peel, chemical exfoliation of microwave pyrolyzed orange peel and hydrothermal reaction of chemically exfoliated orange peel. -
Heteroatom doped coke based nanocarbon for the detection of oxytocin /
Patent Number: 202141052664, Applicant: Riya Thomas.
The present invention provides a facile, scalable, and cost-effective method for preparing heteroatom doped nanocarbon extracted from coke that possesses an excellent electrochemical activity. The synthesized nanostructure modified electrode is used for the rapid quantitative detection of Oxytocin in the range of 0.1 to 95 nM with a limit of detection of 40 pM. -
Method for synthesizing onion-like carbon nanostructures for high performance supercapacitor applications /
Patent Number: 202141000172, Applicant: A V Ramya.The present invention provides a facile, cost-effective, and scalable method for the preparation of onion-like carbon nanostructures from paraffin oil. The method includes a wick-and-paraffin oil flame pyrolysis process in a limited supply of oxygen, where the soot generated during combustion is collected and processed to obtain onion-like carbon nanostructures. The synthesized nanostructures exhibit nearly spherical morphology with particle size ranging from 30 to 50 nm and a BET specific surface area of 104 m2/g. v. -
Development of highly fluorescent nano-carbon sensor from ruta graveolens /
Patent Number: 202241007109, Applicant: Joseph, Neethu.
The present invention offers eco-friendly, green synthesis of cost-effective and scalable nano-carbon structures with potential fluorescence property facilitating its application in fluorescence sensing and antibacterial studies. The synthesized nanostructure reveals high fluorescence exhibiting its potential to be used for fluorescence-based sensing studies. The synthesized nano-carbon has excellent heavy metal ion sensing potential, which is verified through fluorescence spectroscopic studies. -
Development of nitrogen-doped multilayer graphene derivative from coke for imaging biomarker applications /
Patent Number: 202241032250, Applicant: Riya Thomas.
The present disclosure pertains to the methods of preparing nitrogen-doped multilayer graphene derivative via one-pot hydrothermal method utilizing a kind of high-rank coal termed, coke. The prepared nitrogen-doped multilayer graphene derivative possesses excellent fluorescence, long fluorescence lifetime, and, high quantum yield appropriate for bio-related applications. -
Fluorescent enhancement of polymer nanoparticle by composite preparation with ruta graveolens nano-carbon and its application in fluorescence sensing /
Patent Number: 202241039689, Applicant: Neethu Joseph.
The current invention provides an environmentally friendly, green synthesis of a cost- effective and scalable nanocarbon-polymer composite with possible fluorescence features that may be used in fluorescence sensing. The fluorescence of the produced nanostructure is high, indicating that this could be employed in fluorescence-based sensing applications. Fluorescence spectroscopy experiments show that the produced nano-carbon has remarkable heavy metal ion sensing potential. -
Fabrication of heteroatom doped, activated graphine-based architecture derived from coke as supercapacitor electrode material /
Patent Number: 202241051518, Applicant: Riya Thomas.
The present disclosure pertains to preparing a heteroatom doped, activated graphene-based electrode material for the fabrication of high-performance supercapacitor utilizing a low-cost and naturally formed graphite-like precursor, coke. The simultaneous heteroatom doping, as well as activation, was achieved via thermal annealing of the coke-derived oxidized graphene-based architecture along with nitrogen and phosphorus precursors, such as ethylenediamine and phosphoric acid, respectively. -
Low cost lignite derived mesoporous nanocarbon for simultaneous electrochemical detection of heavy metal IONs cadmium and lead /
Patent Number: 202241042032, Applicant: Ashlin M Raj.The present invention provides a facile, scalable, and cost-effective method for preparing mesoporous nanocarbon extracted from low grade coal, lignite that possesses an excellent electrochemical activity. The synthesized nanostructure modified electrode is used for the rapid simultaneous quantitative detection of heavy metals ions cadmium and lead in a unique triple linear detection range over the concentration ranges from 2.08 to 129 nM. -
Portrayal of male protagonists playing double roles in bollywood /
The Bollywood film industry is the thriving industry in India today and is considered the best form of entertainment in India today. In the early 2000’s the aspect of double role became highly popular and became a major aspect in the cinema industry. This research will focus on the aspect of double role in three Bollywood movies and the way of male protagonists have been showed in the films.