Browsing by Author "Arunadevi, N"

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BIONANOCOMPOSITES FOR REJUVENATION OF HEAVILY CONTAMINATED ENVIRONMENT
(Elsevier, 2023) Arunadevi, N; Jone Kirubavathy, S
Treatment of air, land, and water is challenging for many engineers and scientists for environmental rejuvenation. A variety of methods have been explored for the removal of toxic materials. But the efficiency of these conventional methods is less. Among the different rejuvenation techniques, the adsorption process is used extensively due to its ease and low cost. After a successful search, bionanocomposites were found to be an effective and reliable environmental remediation tool. Bionanocomposites come under the class of advanced hybrid materials. They contain natural/synthetic degradable polymers along with nanomaterial. The nanocomposites play a significant role in wastewater treatment by removing contaminants such as dyes, organic compounds, and heavy metals. The attention toward bionanocomposites is owing to their physical and mechanical properties. This chapter focuses on cost-effective and efficient bionanocomposites for environmental rejuvenation.
BIOSYNTHETIC GREENER MOVE TOWARDS NANOSIZED SILVER BY DIOSPYROS MONTANA LEAF EXTRACT AND THEIR ANTIMICROBIAL AND ANTIOXIDANT ACTIVITIES
(Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP), 2020-01-05) Kanchana, P; Arunadevi, N; Hemapriya, V; Shanmuga Sundari, S; Prabha Devi, B
Synthesis of nanomaterials by eco-friendly method is being exploited by chemists because of several advantages over other conventional techniques. The current investigation reports the green approach for Diospyros Montana(DM) silver nanosized particles which has high antimicrobial and antioxidant activities. The synthesized nanosized particles were investigated by several techniques such as IR, Ultra violet, X-Ray Diffraction, Transmission Electron Microscope and AFM studies. Crystalline size of the silver nanoparticle is in the range of 47.05 nm which was clear from the powder X-rd studies. The silver nanoparticls prepared were tested for their antimicrobial potential against E.coli, B.subtilis, C.albicans and A.flavus species and was found to reveal excellent activity because of its volume ratio and high surface.The DPPH assy was used to find scavenging activity of free radicals. In this work we report the silver nanoparticles by aqueous Diospyros Montana leaf extract and its potential for free radical scavenging.
CITRUS LIMON ASSISTED GREEN SYNTHESIS OF MGO NANOPARTICLES: EVALUATION OF PHASE, FUNCTIONAL GROUPS, SURFACE MORPHOLOGY, THERMAL STABILITY AND COLLOIDAL STABILITY
(Elsevier, 2022-10-01) Vandamar Poonguzhali, R; Srimathi, M; Ranjith Kumar, E; Arunadevi, N; Hosam O., Elansary; Ashraf A.A, Abdelbacki; Shaimaa A.M, Abdelmohsen
Citrus limon (the common lemon juice) assisted green combustion was used to create MgO nanostructures. The powder was heat treated for 3 h at 350 °C, and the as-synthesized and heat treated MgO nanostructures were tested by various techniques to investigate their phase composition, structure, thermal stability, colloidal stability, surface morphology, and antimicrobial activities. XRD was performed to study the single-phase cubic structure of MgO nanostructures, and the XRD results confirmed that the sizes of the MgO nanostructures are in the nanoscale range. The average crystallite sizes for as-synthesized and heat-treated samples are 7.8 nm and 19.2 nm, respectively. The functional groups in the experiment were examined using FTIR in the 400–4000 nm range. Thermal analysis of the MgO nanostructures were recorded through TG-DTA and the results confirm the MgO NPs thermally decomposed at 359.77 °C and 361.86 °C. The colloidal stability of the samples was tested using Zeta potential, it confirms that both samples are stable. The external morphology of as-synthesized and heat-treated samples were visualized through SEM. It confirms that the as-synthesized and heat treated MgO samples are nanostructures. The elemental analysis confirms the presence of Mg and O in both samples. The antimicrobial activity of MgO nanostructures tested by plate count mothed and the heat-treated sample exhibits noticeable antimicrobial performance against G-positive and G-negative bacteria.
GROWTH, STRUCTURAL, DIELECTRIC AND OPTICAL CHARACTERISTICS OF GLYCINE PHOSPHITE SINGLE CRYSTALS
(Elsevier, 2019) Shanmuga Sundari, S; Kanchana, P; Arunadevi, N; Shobana, C
Interesting compounds are formed when glycine reacts with inorganic materials. These compounds exhibit phase transitions with exciting dielectric and elastic properties. In this aspect, glycine with orthophosphorus acid forms glycine phosphite (GPI) single crystals. Good quality, optical transparent glycine phosphite (GPI) single crystals are grown from aqueous solution. GPI crystals have a wide range of nonlinear optical applications. The present work focuses on the growth of GPI from its aqueous solution by slow evaporation method. The PXRD (powder XRD) pattern recorded at ambient temperature shows the single phase nature of the grown GPI crystals and it exists in the monoclinic system with space group P21/a. Etching studies were carried out to know more about the growth morphology and FTIR spectra shows the presence of a variety of normal mode vibration of GPI crystals. Dielectric studies were carried out from 100 K to 383 K. the ferroelectric to para electric transition was observed at 201 K. The dielectric relaxation of the grown crystals was studied using Debye fitting. The activation energy associated with the transition was also calculated. As the GPI crystals are paraelectric at room temperature, no second order non linearity was observed.
INFLUENCE OF CARBOXYLIC ACIDS ON STRUCTURAL, OPTICAL, THERMAL, AND ELECTRICAL PROPERTIES OF FERROELECTRIC GLYCINE PHOSPHITE SINGLE CRYSTALS
(Springer Link, 2022-06-28) Shanmuga Sundari, S; Arunadevi, N; Kanchana, P; Meena, P; Ranjith Kumar, E; Hosam O, Elansary; Eman A, Mahmoud; Shaimaa A. M, Abdelmohsen
Glycine phosphite (GPI), a semi-organic nonlinear optical NLO material, has been synthesized at room temperature. Slow evaporation method has been adopted to grow the single crystals of GPI and acetic acid, benzoic acid, formic acid, oxalic acid, and succinic acid-doped GPI crystals. The synthesized crystals are exposed to x-ray diffraction XRD, Fourier transform infrared (FTIR), and differential scanning calorimetry analysis DSC. The effects of doping on the structural parameters are analyzed. All the functional groups are identified by the corresponding peaks in the FTIR spectra. The UV–Vis spectrum shows that the materials have good optical transparency. The energy band gap values are found to be in the range of 5.1–5.4 eV for all the crystals. The mechanical stability of the grown crystals changes with different doping acids. The thermal studies were also affected by the addition of doping acids to the GPI crystal. Growth patterns and defect formation were studied by means of chemical etching. The dielectric constant and loss were evaluated from 300 to 410 K. It confirms that the dielectric constant value of GPI is higher than the acid-doped crystals.
INVESTIGATION OF THE METAL COMPLEXES OF ISOMERIC NAPHTHOIC ACID WITH BASE SYNTHESIS CRYSTAL STRUCTURE AND ITS ENERGY APPLICATIONS
(2023) Swathika, M; Arunadevi, N
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INVESTIGATION ON GROWTH, STRUCTURE, AND PHYSICAL PROPERTIES OF AN ORGANIC CRYSTAL 2-AMINOPYRIDINIUM CYANOACETATE
(Elsevier, 2023-10-05) Sivapriya, S; Subramaniyan Raja, R; Arun Kumar, A; Suryakanth, J; Arunadevi, N; Ranjith Kumar, E; Balasubramanian, K
The single crystal of 2-Aminopyridinium cyanoacetate (2APC) has been grown by solution growth slow evaporation technique. Single crystal XRD shows that the grown 2APC is monoclinic crystal system with centrosymmetric space group P21/c and the lattice parameters were found to be a = 9.8955(9) Å b = 6.1096(5) Å c = 14.6132(12) Å. The functional groups and chemical composition of grown 2APC crystal was confirmed by FTIR analysis. UV–Vis spectral study showed that grown crystal has high transparency in the entire visible region and the cut off wavelength at 369 nm. Thermal properties of the crystal were investigated by TGA/DTA analysis. Microhardness mechanical studies show that the hardness number (Hv) of a 2APC single crystal increases with the load as measured by the Vickers microhardness method. The dielectric properties of the grown crystal were analyzed by varying the frequency. The LDT and Z-Scan study were carried out to explore the laser stability and the existence of NLO property in the 2APC.
LEMON JUICE (NATURAL FUEL) ASSISTED SYNTHESIS OF MGO NANORODS FOR LPG GAS SENSOR APPLICATIONS
(Elsevier, 2021-02) Vandamar Poonguzhali, R; Ranjith Kumar, E; Pushpagiri, T; Ananth, Steephen; Arunadevi, N; Baskoutas, S
Lemon juice assisted combustion method was adopted to prepare MgO nanorods. The role of heat treatment on structural, morphological and gas sensing properties of MgO NPs has been analyzed. The phase analyses of the samples were analyzed using X-ray Diffraction (XRD). The single-phase nanostructure of MgO nanoparticles has been identified from the XRD spectra. The average crystallite sizes are found to be in the range 7.8 nm–19.2 nm. The nanorod like structure of MgO has been recorded through SEM and TEM. The size of MgO nanostructure recorded from TEM is well matched with the crystallite size calculated by XRD. The lemon assisted synthesis of MgO nanoparticles show noticeable gas sensing properties for various gases. In different aspects, gas sensing response of MgO nanoparticles have been analyzed for different gases. The maximum sensing response ~70% has been recorded for LPG at the optimum temperature (OT) 300 °C with the gas concentrations 1000 ppm.
METAL NANOCOMPOSITES FOR ADVANCED FUTURISTIC BIOSENSING APPLICATIONS
(Elsevier, 2022-02-15) Arunadevi, N
Nano biosensors is a device with excellent sensing property having dimension in the range of 100 nm. Biosensors will recognize the biological molecules and have heterogeneous type of reaction with analyte. Biosensors are indispensable in medical field for metabolite measurement, monitoring diabetes and biomolecules due to its reproducibility and stability. Metal nanocomposite as biosensors have proven attention to biotechnologist due to its attractive properties. The properties include large surface area which will enhance immobilization of bio recognizers and receptor molecule, improved electro chemical properties and good biocompatibility. This review article covers the classification, characteristics and current development of biosensors with different nano composite materials.
METAL OXIDES: ADVANCED INORGANIC MATERIALS
(Elsevier, 2021) Arunadevi, N; Jone Kirubavathy, S
Metal oxides are significant materials in recent research scenario in pharmaceutical applications like anti-oxidant, anti-fungal, antimicrobial, etc., photovoltaic applications with higher efficiency, thin film material, biomedical implant materials, bio-imaging and drug delivery applications, dietary supplements, biosensing platforms, electrodes in various electrochemical cells, photocatalyst, corrosion materials and so on. The present review includes the applications of metal oxides and its composite materials in various fields, their significance in corrosion and electrochemical studies, and their mechanisms. It also highlights its biomedical importance and as sensors which are useful in creating an ecofriendly platform.
NATURAL CITRIC ACID (LEMON JUICE) ASSISTED SYNTHESIS OF ZNO NANOSTRUCTURES: EVALUATION OF PHASE COMPOSITION, MORPHOLOGY, OPTICAL AND THERMAL PROPERTIES
(Elsevier, 2021-08-15) Vandamar Poonguzhali, R; Ranjith Kumar, E; Sumithra, M G; Arunadevi, N; Sharmila Rahale, C; Alaa M, Munshi; Gaber A.M, Mersal; Nashwa M, El-Metwaly
In recent years, because of their excellent electrocatalytic action and applications in different fields, metal oxide nanostructures have received massive consideration from scientists. Zinc oxide nanostructures are useful materials for a range of sensing applications and possess admirable electrocatalytic properties and stability. The current research presents the natural citric acid assisted synthesis of ZnO nanostructures and their structural, optical, morphological and thermal properties. X-ray diffraction was studied for the phase assessment of as prepared (Z1) and annealed ZnO (Z2) nanostructures and the crystallite sizes of the Z1 and Z2 samples were also located in the range between 35 nm and 38 nm. FESEM and TEM experiments were carried out to explore the surface features of Z1 and Z2 samples. The polycrystalline existence of the samples is demonstrated by the hexagonal, cubic and spherical shaped ZnO nanostructures. The energy band gap of Z1 and Z2 samples was determined (3.16 eV for Z1 and 3.12 eV for Z2) from the UV spectrum. The impact of annealing treatment on the thermal stability of ZnO nanostructures was studied and the main peak was observed for the Z1 sample at ~249 °C and for the Z2 sample at ~289 °C.
NATURAL CITRIC ACID ASSISTED SYNTHESIS OF CUO NANOPARTICLES: EVALUATION OF STRUCTURAL, OPTICAL, MORPHOLOGICAL PROPERTIES AND COLLOIDAL STABILITY FOR GAS SENSOR APPLICATIONS
(Elsevier, 2022-09-15) Vandamar Poonguzhali, R; Ranjith Kumar, E; Arunadevi, N; Srinivas, Ch.; Mohamed E, Khalifa; Sraa, Abu-Melha; Nashwa M, El-Metwaly
In the present research, natural ingredient lemon juice was selected as a fuel to prepare nanoparticles under combustion method. The structural properties of nanophase copper oxide nanoparticles (CuO NPs) synthesized by a natural citric acid aided combustion process were studied using transmission electron microscopy (TEM), scanning electron microscopy (SEM), and X-ray diffraction (XRD). According to the SEM and TEM images, the manufactured product is made up of spherical nanoparticles with a limited size distribution. According to the XRD pattern, the average crystallite size of monoclinic structured CuO nanoparticles was 10.4 nm for as-prepared samples and 20.5 nm for annealed samples. The zeta potential value confirms the negative surface charge of the samples and the values show the excellent stability (-58.1 mV) for as-prepared sample and the good particles stability (-38.3 mV) was exhibited for heat treated sample. The optical band gap of CuO nanoparticles is 2.01 eV and it decreases to 1.28 eV under heat treatment. The sensitivity and selectivity of the samples were tested under different operating temperatures (OT) and different gas concentrations (GC). Recovery-response time plots confirm that the CuO nanoparticles are promising materials for gas sensor fabrications.
NATURAL LEMON EXTRACT ASSISTED GREEN SYNTHESIS OF SPINEL CO3O4 NANOPARTICLES FOR LPG GAS SENSOR APPLICATION
(Elsevier, 2023-02-15) Vandamar Poonguzhali, R; Ranjith Kumar, E; Srinivas, Ch; Mubark, Alshareef; Meshari M, Aljohani; Ali A, Keshk; Nashwa M, El-Metwaly; Arunadevi, N
A fresh lemon juice-assisted auto-combustion method was implemented for the synthesis of Co3O4 nanoparticles (Co3O4 NPs). The structural, vibrational, optical, and morphological properties of prepared Co3O4 NPs were investigated at 350 °C. The effects of lemon juice and heat treatment on the physicochemical properties of Co3O4 nanoparticles were investigated. XRD was used to investigate the structure, lattice constant, and crystallite size of Co3O4 NPs. Heat treatment at 350 °C causes the crystallite size to increase from 14.4 nm to 23.7 nm. FT-IR spectroscopy was used to investigate the functional groups and vibrational modes of unheated and heated Co3O4 NPs. Unheated and heated Co3O4 NPs had energy band gaps of 3.14 eV and 3.4 eV, respectively. TEM micrographs of heat-treated Co3O4 NPs confirm the nanoscale range of the particles, which agrees well with the crystallite size determined by XRD. The colloidal stability of Co3O4 NPs has been analyzed through zeta potential values, and the obtained values confirm that the colloidal stability of Co3O4 NPs was influenced by heat treatment. LPG based sensor behavior of Co3O4 nanoparticles has been tested with various aspects of sensing parameters. The result shows that the prepared nanoparticles can be a promising sensing material for toxic gases like LPG, CO2 and NH3
NEW EPOXY-NANO METAL OXIDE-BASED COATINGS FOR ENHANCED CORROSION PROTECTION
(Elsevier, 2022-02-15) Arunadevi, N; Swathika, M; Mehala, M; Ranjith Kumar, E; Tahani M, Bawazeer; Moataz, Morad; Kholood, Alkhamis; Samar Y, Al-nami; Nashwa M, El-Metwaly
Aminoguanidium-1-naphthoate and its Ni(II) and Co(II) complexes were synthesized and characterized by spectral, thermal and structural methods. By using these compounds as precursors, epoxy coated ligand, NiO and CoO has been prepared by Sol-gel method in order to protect the corrosion on mild steel substrate. Resistance and protection against corrosion of the synthesized sample was studied in 3 M HCl, 1.5 M H2SO4, and 0.5 M H3PO4 by weight loss measurements, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The surface and structural morphological studies of epoxy-metal oxides were investigated using powder XRD and SEM analysis. The corrosion protection efficiency of epoxy -NiO and epoxy -CoO nanoparticles film on mild steel is high than epoxy-L. The molecular docking study against 3T88 and 1Y2T protein with synthesized compound was performed to study the interactions responsible for anti-bacterial activity against S. aureus and E. coli.
OPTICAL AND BIOLOGICAL CHARACTERISTICS OF NOVEL ORGANIC SINGLE CRYSTAL 4-CHLORO N-METHYL 4-STILBAZOLIUM TOSYLATE
(Elsevier, 2019) Arunadevi, N; Kanchana, P; Mehala, M; Shanmuga Sundari, S
When compared with inorganic materials, the molecular organic materials acquire significant interest because of their considerable nonlinear optical properties, virtual unlimited design possibilities and extremely fast response times. Amongst them, organic crystals which are based on the charged chromophores and substantial Coulomb interaction have a number of benefits over non-ionic species, like first-order hyperpolarizability or greater molecular nonlinearity, durable stability and having a larger capability to override the dipole–dipole interactions and therefore it forms a non-centro symmetric macroscopic packing. For instance, DAST (4-N, N-dimethylamino-4′-N′-methyl-stilbazolium tosylate), the organic salt crystal, is one of the finest nonlinear optical materials having larger second-order nonlinear optical susceptibilities. Even though benchmark stilbazolium crystals display a great macroscopic nonlinearity and noble crystal characteristics, improving these physical properties comprising the environmental stability is a provocative topic. Based on this, the present paper discusses the growth of cationic substituted DAST namely 4-chloro -N-methyl 4-stilbazolium tosylate (CMST). Knoevenagel reaction method was used to synthesis CMST salt using Dean-Stark apparatus. The synthesized salt of CMST was dried at 100 °C for 24 h. The dried CMST salt was used to grow the crystals after three recrystallization process. Based on the solubility curve new solvent, mixture of methanol and acetonitrile was used to grow the crystals at room temperature by slope nucleation method. Structure of the grown crystals was characterized using single crystal XRD and FTIR. The compositional analysis was carried out using NMR and CHN analysis. Luminescence characteristics was studied using photoluminescence spectrum. The dielectric characteristics ware carried out from room temperature to 250 °C. Invitro analysis was carried out in the cancer cell line to study it’s anti-cancer activity.
PREPARATION AND EVALUATION OF N, N1-METHYLENEBISACRYLAMIDE CROSSLINKED POLYMER FOR THE CONTROLLED RELEASE OF WATER AND FERTILIZER IN AGRICULTURE SECTOR
(AIP Conference Proceedings, 2021-08-05) Dhanapal, V; Subhapriya, P; Arunadevi, N; Radjarejesri, S
The present study involved in the synthesis of a series of hydrophilic crosslinked superabsorbent polymer (SAP) materials by free radical thermal copolymerization method using methacrylic acid (MAA), 2-hydroxyethyl methacrylate (HEMA), acrylamide (AM) as monomers and N,N1-methylenebisacrylamide (N,N1-MBA) as crosslinker. The structural (FT-IR), thermal stability (TGA/DTG), morphological features (SEM), water, fertilizer uptakes and release characteristics of synthesized SAPs were analyzed for field application. An optimized polymer composition had absorbed 839 g/g of water and it released the imbibed water over a period of 23 days. Fertilizer uptake investigation revealed that 85, 70 and 80% of urea, potash and superphosphate respectively were absorbed from their 1% solution and it had released only 33, 39 and 45% of urea, potash and superphosphate respectively at room temperature in a single absorption-desorption cycle. The results indicated that the obtained polymer may be used as matrix for the controlled release of water and fertilizers in agriculture sector.
STRUCTURAL AND OPTICAL PROPERTIES OF SALICYL-N-METHYL-4-STILBAZOLIUM TOSYLATE: THERMAL, DFT, MEP AND HIRSHFELD SURFACE ANALYSIS
(Elsevier, 2023-01-05) Shanmuga Sundari, S; Mehala, M; Arunadevi, N; Kanchana, P; Salman S, Alharthi; Ranjith Kumar, E; Al-Douri, Y; Abd El-Rehim, A F
The structural characteristics and optimized geometry of salicyl-N-methyl-4-stilbazolium tosylate (SMST), a derivative of the prominent electro-nonlinear optic crystal 4-(N,N-dimethylamino)-N-methyl-4-toluene sulfonate (DAST) is investigated. Its morphology, spectral, vibrational, thermal, and electronic features have been examined in studies like FT-IR, UV-Transmittance spectroscopy, single crystal XRD and TG-DTA analysis. Thermal parameters like activation energy, entropy, enthalpy, and Gibbs free energy suggest that the reaction is slower and non-spontaneous. The optical constants like energy band gap, absorption coefficient, extinction coefficient, refractive index, and skin depth of SMST have been calculated. The energy band gap value is found to be 2.69 eV, which makes SMST a potential and promising material for non-linear optical applications. The dielectric behavior of SMST is in agreement with the property needed for NLO materials. Theoretical calculations like density functional theory and frontier molecular orbitals- HOMO and LUMO are investigated to analyze the structural properties, atomic arrangement, oriented geometry, and dipole moment. Molecular electrostatic potential (MEP), Hirshfeld surface, and 2D fingerprint plot analysis are examined to provide information about the molecular interaction, crystal packing, electron density, and intermolecular properties of atomic contacts. Second Harmonic Generation of SMST shows greater efficiency than urea, which confirms that SMST crystal can leads to many applications in the optical field.
STRUCTURAL CHARACTERIZATION, DNA INTERACTION AND PHARMACOLOGICAL EVALUATION OF CU (II), CO (II), NI (II), FE (II) DIHYDRATE COMPLEXES DERIVED FROM PYRIDINE-2,5-DICARBOXYLIC ACID AND 2-METHYLIMIDAZOLE AS ORGANIC MOIETIES
(Elsevier B.V, 2024) Sudha, D; Revathi, A; Arunadevi, N; Kirubavathy S, Jone
The study of Metal organic coordination polymers is one of the most emerging areas of research in coordination chemistry because of their wide technological and interesting applications in pharmacology, sensor studies, catalysis, hydrogen storage devices, magnetic and NLO materials, ion exchange adsorption, metallic conductivity and luminescence studies. In this research work, microcrystalline transition metal [Cu (II), Co (II), Ni (II) and Fe (II)] complexes of Pyridine-2,5-dicarboxylic acid and 2-Methylimidazole as organic moieties were synthesized and analyzed for DNA interaction, biological properties like anti-cancer, anti-oxidant and anti-microbial activities. Structural characterization were studied using Fourier Transform-Infra Red spectroscopy (FT-IR), X-ray Diffractions (XRD), Ultraviolet-Visible spectroscopy (UV–VIS), Field Emission Scanning Electron Microscopy (FE-SEM), Energy-Dispersive X-Ray analysis (EDX), Cyclic voltammetry (CV) and Thermo Gravimetric Analysis (TG-DTA). The copper complex demonstrates superior biological activity compared to alternative complexes, exhibiting antioxidant, antibacterial, and anticancer properties. From cytotoxicity results, it's evident that complexes (1–4) possess the capability to inhibit tumor cell growth while sparing normal cells, attributed to the metal atoms' strong affinity for cancer cells.
STRUCTURAL, OPTICAL, THERMAL, BIOLOGICAL AND MOLECULAR DOCKING STUDIES OF GUANIDINE BASED NAPHTHOATE METAL COMPLEXES
(Elsevier, 2021-06) Arunadevi, N; Swathika, M; Prabha Devi, B; Kanchana, P; Shanmuga Sundari, S; Jone Kirubavathy, S; Subhapriya, P; Ranjith Kumar, E
The present work reports the complexation of few d-block metals with 3-hydroxy-2-naphthoic acid and guanidine which yields corresponding mononuclear complex bis(guaninium) 3-hydroxy-2-naphthoate metal (II) dihydrate of the type M(CN3H5)2{C10H6(3-O)(2-COO)}].2H2O, where M= form Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Pb(II) and Ca(II) of ratio 1:2:4 – metal: acid: base. Characterization of the complexes were done by elemental analysis, IR spectra, UV-Visible spectroscopy, TG-DTA, powder XRD. TG-DTA study reveals various decomposition pattern and thermal stability of the metal complexes. Crystalline nature of the metal complexes is confirmed form powder XRD measurement. SEM coupled with EDAX and AFM confirms the presence of nano-sized metal oxides. Antibacterial studies of the metal complex prove that they are active against Bacillus subtilis and Escherichia coli. Furthermore, molecular docking was carried out for a study of physicochemical properties and to show the binding energy of ligands with proteins.
THREE-DIMENSIONAL APPROACHES BASED ON NANOTECHNOLOGY TOWARDS WOUND MANAGEMENT
(Elsevier, 2023) Arunadevi, N; Jone Kirubavathy, S
Developments in medicine and biotechnology have created many applications in areas such as tissue engineering. Regenerative medicines have the potential to develop patient-specific 3D tissue for customized treatment. The advancements in 3D bioprinting and nanomaterial manufacturing techniques have attracted the attention of many young researchers to the study of disease pathology. These advances enable digital fabrication techniques for biological molecules and for the encapsulation process. Compared to traditional methods, the main advantage of 3D printing is its ability to target the particular tissue construct and produce a high-resolution 3D structure through computer-aided design.