Fourier Transform Infrared Studies Research Articles

FTIR study on the cellular chemical composition of Allium cepa L. seedlings under salt stress

The current study is to investigate the effects of salinity on cellular chemical composition in four cultivars of onion seedlings (Agrifound rose, Bellary, Prema-178 and Nasik red) at different time intervals through the Fourier-transform infrared (FTIR) spectroscopy. Onion seedlings were treated with 0, 50 and 150 mM NaCl for 3 h and 48 h intervals and dried samples were used for analysing the biochemical changes using FTIR spectroscopy. The results provided insights at 50 and 150 mM NaCl and clear differences were noticed in profiles related to lipids, proteins and carbohydrate functional groups compared with untreated control. In principal component analysis (PCA), the first two principal components (PC1 and PC2) of four onion cultivars and salt treatments explained 95.7 % of total variations whereas 71.8 % of total variations were accounted with FTIR spectra of 4000-1000 cm-1 region. Multiple linear regression (MLR) analysis exhibited significant correlation values of R2 > 0.9. At both the intervals of salt treatment, the Bellary cultivar showed good responses, thereafter Prema-178 cultivar at each concentration when compared with control. In conclusion, FTIR spectroscopy can elucidate early salt stress-induced chemical changes in various compounds as well as the salt adaptive process in onion metabolism.

Structural and Morphological Studies on Strontium Tin Phosphate SrSn(PO4)2 Nanopowder

Strontium Tin phosphate SrSn(PO4)2 nanopowder was prepared by simple Solid State Reaction method (SSR). Structural and morphological investigations of the synthesized nanopowder were characterized by Powdered X-ray diffraction study (P-XRD), Fourier transform infrared (FT-IR) Spectroscopy, Field Emission Scanning Electron Microscopy (FE-SEM) and Energy Dispersive X-ray Spectroscopy Analysis (EDS). The average crystallite size estimated from P-XRD study was around 17 nm. W-H plot method was also agreed the size of the crystallite of the prepared sample in nanoscale. FE-SEM images show agglomerates of non-uniform biscuit like nano flakes structure. Various functional groups of prepared sample exhibited phosphate related bands are confirmed by FT-IR study.

Collagen stabilization by natural cross-linkers: A qualitative and quantitative FTIR study on ultra-thin dentin collagen model.

Due to its low tolerance to external factors such as enzymes, dentin collagen often requires stabilization, which can be achieved through cross-linking. In this study, qualitative and quantitative Fourier transform infrared (FTIR) analyses were used to assess dentin collagen stabilization effects of three structurally-different flavonoids -A-type linkage proanthocyanidins (A-PA), B-type linkage proanthocyanidins (B-PA), and epigallocatechin gallate (EGCG), all from natural extracts. Particularly, transmission FTIR spectroscopy was used for the first time to quantitatively assess the biodegradation of fresh ultra-thin (10 µm) dentin collagen films caused by collagenase digestion. Two traditional analytical methods, namely the hydroxyproline assay and weight loss analysis, were also used for comparison purposes. The results from all three methods showed consistently that A-PA and B-PA provide better collagen stabilization than EGCG at concentrations of 0.65% and 1.3% (p<0.01). FTIR is demonstrated to be a valuable and reliable analytical tool for qualitative and quantitative evaluation of ultra-thin collagen films.

The effects of miltefosine on the structure and dynamics of DPPC and DPPS liposomes mimicking normal and cancer cell membranes: FTIR and DSC studies

Miltefosine (MLT,hexadecylphosphocholine (HePC)) is an alkylphospholipid (APL) clinically used against leishmaniasis and the topical treatment of cancer. Although the MLT mechanism of action has not yet been clarified, it is thought to be related to its incorporation into the plasma membrane, affecting lipid homeostasis. An essential feature of APLs is that they possess a lethal effect that acts only on malignant cells without affecting normal cells; this property indicates the potential selective antitumor properties of these types of drugs. However, the exact mechanism of APLs action at the molecular level is not yet known in detail. This study aimed to elucidate the molecular mechanisms of the interaction of the antitumor alkylphospholipid drug miltefosine with molecular models of normal and cancer cell membranes. The interaction of MLT with dipalmitoyl phosphatidylcholine (DPPC) multilamellar liposomes (MLVs) mimicking normal cell membrane and dipalmitoyl phosphatidylserine (DPPS) multilamellar liposomes (MLVs) mimicking cancer cell membrane was studied in the presence of (1 mol%,3 mol%, 6 mol%, 9 mol%, 15 mol%, 24 mol%, 30 mol% and 35 mol%) and in the absence of MLT by using two different non-invasive techniques; Fourier Transform Infrared (FTIR) spectroscopy and Differential Scanning Calorimetry (DSC). The comparative results show that miltefosine affects DPPS/MLT systems modeled cancer cells more than the DPPC/MLT system modeled healthy cells. Our results may be proof at the molecular level that miltefosine has selective antitumor properties.

Biological fabrication of zinc oxide nanoparticles from Nepeta cataria potentially produces apoptosis through inhibition of proliferative markers in ovarian cancer

Abstract This study evaluated the biological fabrication and characterization of zinc oxide nanoparticles (ZnONPs) using Nepeta cataria (NC) and their anticancer activity against ovarian cancer cells (SKOV3). This study synthesized ZnONPs using leaf extract of N. cataria through a biological method. The synthesized particles were characterized in several ways such as zeta potential, ultraviolet-visible (UV-Vis) spectrum, Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), and scanning electron microscopic (SEM) analysis. UV-Vis spectrum exhibited that maximum spectra were found to be 380 nm. The size of the material was shown to be 75.9 nm confirmed by dynamic light scattering measurement. Moreover, XRD, SEM, and transmission electron microscopic analysis were confirmed by the synthesized materials as crystal-based ZnONPs. FTIR studies represent that several biologically active functional groups existed in the synthesized nanoparticles. In addition, the anticancer ability and the inhibitory role of ZnONPs-NC against SKOV3 cells were investigated. We found that ZnONPs-NC causes efficient toxicity in SKOV3 cells by increasing cytotoxicity depending on reactive oxygen species production and nuclear fragmentation in SKOV3 cells. ZnONPs-NC activates Bax and Caspases while inhibiting Bcl-2 proteins in SKOV3 cells. Furthermore, we discovered that ZnONPs-NC inhibits the proliferative markers PCNA, cyclin-D1, matrix metallo proteinase (MMP)-2, and MMP-9) in SKOV3 cells. Thus, biologically synthesized ZnONPs-NC were found to be effectively inhibiting ovarian cancer cell growth.

Development and in vitro Characterization of Gastroretentive Formulations as Calcium Pectinate Hydrogel Pellets of Pregabalin by Ionotropic Gelation Method

Abstract: Introduction: Pregabalin (PG) is primarily prescribed for epilepsy, painful diabetic neuropathy, post-herpetic neuralgia, and fibromyalgia. Also, it is used in clinical practice to treat general anxiety disorder due to its anxiolytic properties. Pectin is a watersoluble ionic polysaccharide. As a result of the interaction of pectin with calcium ions, a hydrophilically coated insoluble carrier system is formed by complexing between surfaces, which provides a sustained release. In this direction, floating hydrogel pellets containing PG were developed and characterized in our study. This study aimed to make a sustained release of PG, reach the optimum level in characterization, and bring a new approach to widely used oral drug therapy. Materials and Methods: PG was a gift from Ilko Pharmaceuticals (Turkey) and pectin was purchased from CPKelco (USA). The ionotropic gelation technique was used to prepare pellets. To characterize the pellets, flotation/swelling degrees, yield, drug loading capacity/encapsulation efficiency, particle size/distribution, in-vitro release/kinetics, and morphological studies have been done. Also, the structural features of pellets have determined via the Fourier Transform Infrared (FT-IR), scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET), and X-ray diffraction (XRD) studies. Results: The formulations have been successfully developed without using any coating agent to prolong drug release for 24 h with an encapsulation efficiency of ~82%. Optimum results were obtained in characterization studies. As a result of BET analysis, it has been proven that the structure is porous and there is no change in the chemical and crystal structure of PG by FT-IR and XRD studies. Conclusion: We anticipate that the formulation we developed will provide an alternative to the sustained-release PG preparations in the current pharmaceutical market. Key words: Gastroretentive drug delivery, Pregabalin, Pectin, HPLC, FT-IR, BET, XRD.

Ternary adsorption of Auramine-O, Rhodamine 6G, and Brilliant Green onto Arapaima gigas scales hydroxyapatite: Adsorption mechanism investigation using CCD and DFT studies

The simultaneous-competitive adsorption of Auramine-O (AO), Rhodamine 6G (R6G), and Brilliant Green (BG) dyes onto hydroxyapatite (HAP) produced from pirarucu (Arapaima gigas) scales was investigated by Fourier Transform Infrared (FTIR), Central Composite Design (CCD), and Density Functional Theory (DFT). Pirarucu scales were chosen as the precursor of the bioadsorbent owing to the large volume of this unutilized waste produced by the Brazilian pisciculture, which has increased the concern about solid disposal in the Amazon region. The CCD matrix presented each dye initial concentration as a factor influencing the removal of the other dyes. DFT was utilized to indicate the preferential order of adsorption. FTIR analyses of the dye-adsorbed HAP confirmed that the cationic dyes were removed from aqueous solution owing to interactions with anionic groups present on the HAP surface. High values of BG initial concentration negatively influenced the adsorption of AO, according to CCD, DFT, and FTIR results. Desirability analysis based on CCD results revealed the simultaneous optimum conditions of the ternary adsorption to be: HAP dosage 1.09 g.L−1; AO, R6G, and BG initial concentration 77, 29, and 39 mg.L−1, respectively, yielding percentage removals of AO, R6G, and BG as 93.78%, 23.94%, and 99.94%, respectively. The adsorption isotherms at 28, 38, and 48 °C suggested that the dyes in the ternary mixture were adsorbed in monolayer on the HAP surface (modified Langmuir model). The CCD, DFT, and FTIR studies effectively aimed to propose the possible multicomponent adsorption mechanism. This study shows that pirarucu scales is a residue biomass that can be easily processed to obtain an efficient, low-cost, and selective adsorbent regarding the studied dyes.

Role of GO and rGO on the structural properties of PA6/PMMA blend nanocomposites

To understand and assess the role of Graphene Oxide (GO) and reduced graphene oxide (rGO) in the PA6/PMMA blend, nanocomposites, the PA6/PMMA (50:50 wt%) blend-based nanocomposites were prepare by loading different wt% of GO and rGO (1wt% and 3wt%), through twin screw melt extrusion followed by injection moulding technique. Different compositions of the nanocomposites were prepared using melt mixed method at 230 0 C by applying a rotational torque 50 N. All the specimens were prepared as per the ISO/ASTM standards. The prepared specimens were stored in moisture free bags, until further use. In order to understand the role of GO and rGO on the structural properties the PA6/PMMA blend nanocomposites, the Fourier Transform Infrared (FTIR) Spectroscopy and X-ray diffraction (XRD) spectroscopic studies were carried out. The FTIR studies confirm the occurrence of all the characteristic peaks pertaining to the functional groups of the composites. It was also observed from the FTIR spectra that interactions among the different functional groups of the GO and rGO and PA6/PMMA observed. The XRD analysis of nanocomposites revealed the complete exfoliation of the GO and rGO in the PA6/PMMA polymer matrix and uniform dispersion of nanofiller in the matrix. These developed nanocomposites are suitable for biomedical, environment, shielding, energy and gas sensing applications.

Synthesis of 4-((4-(4-nitrophenoxy)phenyl)diazenyl)benzene-1,3-benzoate:Experimental, DFT and, DNA binding investigation through spectral and molecular docking studies

Pharmacists and other researchers have always been fascinated by the DNA sensing evaluation. This piece of work emphasizes on the synthesis, characterization and DNA sensing of a novel azo ester (N = N, -COO) molecule. The product (1A) was synthesized employing a typical esterification reaction between previously reported resorcinol coupled azo dye and Benzoyl chloride. The structural interpretation of the synthesized ester was done by FT-IR (Fourier transform infrared), NMR (Nuclear magnetic resonance), UV/VIS (ultraviolet–visible spectroscopy), and single crystal X-ray diffraction studies. XRD analysis elucidated the Ester 1A to be in the Monoclinic system with P21/n space group. The DFT simulation experiments were also examined to investigate the structural implications of the resulting product. The higher softness (S), electrophilicity index (ω) and electronegativity (χ) values demonstrated greater polarizability and reactive nature of the compound. Further, wet and silico binding methods were employed to examine the DNA sensing ability of the synthesized molecule with SS-DNA. UV/VIS spectroscopy and hydrodynamic measurements (Viscosity) suggested Groove binding mode of interaction with a moderate value of binding constant, which was further confirmed by molecular docking techniques.

Effect of Zinc Fluoride addition on structure of barium Borate glasses for nonlinear optical applications

A series of Zinc Barium Borate Oxyfluoride glasses with composition 60B 2 O 3 -(40-x)BaO-xZnF 2 , where x = 0, 10, 20, 30, and 40 mol% are prepared using the conventional melt quench method. Density and molar volume was found to decrease with the increase in ZnF 2 content. The optical band gap was found to vary between 5.76 and 5.14 eV. Such a wide bandgap of the prepared samples makes them a potential candidate as Supercontinuum sources. Fourier transform infrared (FTIR) and Raman spectroscopy were used together to see the structural changes incurred in the material. Raman spectroscopy confirms the Non-bridging Oxygen variation while FTIR gives insights into borate structural units' changes, including the Boron coordination. Non-bridging Oxygen species were found to decrease initially with the addition of ZnF 2 and thereby cause network loosening. FTIR studies indicate a nonlinear variation in the coordination of Boron with the addition of ZnF 2 . Nonlinear absorption and refraction have been measured to establish the potential of the prepared samples as supercontinuum sources. The origin of nonlinearity in the samples is explained from the insights obtained using structural investigations. • BZB glasses possess wide bandgap and are a potential Supercontinuum source. • Zinc acts as a network former at low concentrations. • Creation of NBO increases nonlinear coefficients. • Nonlinear refractive index values are of the order of 10 −14 cm 2 W −1 .

Thermally Induced Reversible Metal-to-Metal Charge Transfer in Mixed-Valence {Fe III 4 Fe II 4 } Cubes

Thermally Induced Reversible Metal-to-Metal Charge Transfer in Mixed-Valence {Fe ^III ₄ Fe ^II ₄ } Cubes

Green synthesis, characterization and antimicrobial activities of silver nanoparticles using Cissus quadarangularis leaf extract

In the present work biogenic synthesis of silver nanoparticles using Cissus quadarangularis aqueous leaf extract and their evaluation of antimicrobial activities. The synthesized nanoparticles were confirmed by, X-ray diffraction (XRD), UV–visible absorption (UV–Vis), Scanning electron microscopy (SEM) and Fourier transform infra-red (FT-IR) spectroscopy. The surface plasmon resonance resulted in significant absorption at 450 nm. The XRD analysis confirmed the crystalline nature of the particles and average crystallite size was found to be 35 nm. Furthermore, FT-IR study was used to identify potential biomolecules involved in the bio reduction of silver ions. Bactericidal efficacy of synthesized nanoparticles against Gram-positive and Gram-negative bacteria was confirmed using an antimicrobial activity.

Valorisation of wheat bran to produce natural pigments using selected microorganisms

Pigments are compounds with highly diverse structures and wide uses, which production is increasing worldwide. An eco-friendly method of bioproduction is to use the ability of some microorganisms to ferment on renewable carbon sources. Wheat bran (WB) is a cheap and abundant lignocellulosic co-product of low recalcitrance to biological conversion. Microbial candidates with theoretical ability to degrade WB were first preselected using specific databases. The microorganisms were Ashbya gossypii (producing riboflavin), Chitinophaga pinensis (producing flexirubin), Chromobacterium vaccinii (violacein) and Gordonia alkanivorans (carotenoids). Growth was shown for each on minimal salt medium supplemented with WB at 5 g.L−1. Activities of the main enzymes consuming WB were measured, showing leucine amino-peptidase (up to 8.45 IU. mL−1) and β-glucosidase activities (none to 6.44 IU. mL−1). This was coupled to a FTIR (Fourier Transform Infra-Red) study of the WB residues that showed main degradation of the WB protein fraction for C. pinensis, C. vaccinii and G. alkanivorans. Production of the pigments on WB was assessed for all the strains except Ashbya, with values of production reaching up to 1.47 mg.L−1. The polyphasic approach used in this study led to a proof of concept of pigment production from WB as a cheap carbon source.

Effects of Various Phytochemical Fractions of Mundulea sericea on Free Radical Scavenging and Inhibition of Inflammatory Agents

Antioxident and antiinflammatory activities of Mundulea sericea (Willd.) A. Chev. is a medicinally important species belong to the family Fabaceae. This species contains various phytocompounds of entire parts which act as antimicrobial activity, anti-inflammatory activity, anticancer activity, antidiabetic activity, etc. Hence, the present study was aimed to analysis of phytochemical constitutes through Fourier transform infrared (FTIR) and gas chromatography mass spectrometry (GCMS) analysis by six various solvent extracts of hexane (MSBH), petroleum ether (MSBPE), chloroform (MSBC), ethyl acetate (MSBEA), ethanol (MSBE), and methanol (MSBM). The result of phytochemical analysis reported that the MSBE and MSBM extracts are contain more phytochemical constitutes than other extracts. In FTIR and GCMS study, MSBE and MSBM extracts are reported various phytochemical constitutes and out that many bioactive compounds are present of these extracts. Further, MSBE extract was subjected antioxidant and anti-inflammatory activities. In antioxidant activity, four different type assays such as 2,2-diphenyl-1-picryl-hydrazyl-hydrate radical scavenging, 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonate), hydrogen peroxide, and nitric oxide (NO) were used. Among this antioxidant study, NO was reported 74.63 inhibition percentage of free radical than other assays. In anti-inflammatory activity, albumin denaturation and human red blood cell membrane stabilization assay were performed by MSBE extract which result reported that the MSBE extract has good anti-inflammatory activity with more than 60% inhibition capacity on both assays. From this study, M. sericea bark extracts contain highly therapeutic phytocompounds which compounds possess good antioxidant and inflammatory activities.

How does pressure affect the molecular dynamics, intramolecular interactions, and the relationship between structural (α) and secondary (JG-β) relaxation above and below the glass transition temperature in binary mixtures of H-bonded API – probucol and acetylated saccharides?

In this paper, the molecular dynamics as well as inter- and intramolecular interactions in the homogenous solid dispersions (SDs) of active pharmaceutical ingredient - probucol (PRO) with acetylated glucose (acGLU), acetylated sucrose (acSUC), and sucrose acetoisobutyrate (aibSUC), prepared in 5:1 molar ratio, have been investigated using broadband dielectric (BD) and Fourier transform infrared (FTIR) spectroscopy. Importantly, high pressure dielectric measurements revealed that as for neat PRO, a breakdown of the isochronal structural (α) and JG-β exact superpositioning, due to increasing separation between both processes under compression, can also be detected in its mixtures with acetylated saccharides (acSACCHs). Furthermore, the analysis of temperature dependences of JG-β-relaxation times for PRO and PRO-acSACCH SDs at selected isobaric conditions indicated the increase in the cooperativity of the secondary process (reflected in the value of the activation entropy, ΔSβ) at elevated pressure in all systems. The mere addition of the small amount of excipient to neat PRO (p = 0.1 MPa) resulted in a greater value of ΔSβ (it was the most noticeable in the case of aibSUC). Further FTIR studies carried out on the pressure densified glasses of PRO, and binary mixtures suggested that the observed changes in the cooperativity of the JG-β-process, as well as the failure of the exact isochronal superpositioning of α- and JG-β relaxation times, are due to varying H-bond pattern in the examined single- and two-component systems at high compression/in the presence of saccharide.

Influence of Different Conditioning Treatments on the Bond Integrity of Root Dentin to rGO Infiltrated Dentin Adhesive. SEM, EDX, FTIR and MicroRaman Study.

The present study aimed to synthesize and equate the mechanical properties and dentin interaction of two adhesives; experimental adhesive (EA) and 5 wt.% reduced graphene oxide rGO) containing adhesive. Scanning electron microscopy (SEM)-Energy-dispersive X-ray spectroscopy (EDX), Micro-Raman spectroscopy, push-out bond strength test, and Fourier Transform Infrared (FTIR) spectroscopy were employed to study nano-bond strength, degree of conversion (DC), and adhesive-dentin interaction. The EA was prepared, and rGO particles were added to produce two adhesive groups, EA-rGO-0% (control) and rGO-5%. The canals of sixty roots were shaped and prepared, and fiber posts were cemented. The specimens were further alienated into groups based on the root canal disinfection technique, including 2.5% sodium hypochlorite (NaOCl), Photodynamic therapy (PDT), and ER-CR-YSGG laser (ECYL). The rGO nanoparticles were flake-shaped, and EDX confirmed the presence of carbon (C). Micro-Raman spectroscopy revealed distinct peaks for graphene. Push-out bond strength test demonstrated highest values for the EA-rGO-0% group after NaOCl and PDT conditioning whereas, rGO-5% showed higher values after ECYL conditioning. EA-rGO-0% presented greater DC than rGO-5% adhesive. The rGO-5% adhesive demonstrated comparable push-out bond strength and rheological properties to the controls. The rGO-5% demonstrated acceptable DC (although lower than control group), appropriate dentin interaction, and resin tag establishment.

The Effect of Ammonium Bromide on Methylcellulose Biopolymer Electrolytes for Electrical Studies

The development of biopolymer electrolytes based on methylcellulose (MC) has been accomplished by incorporating ammonium bromide (NB) to the polymer-salt system. The biopolymer electrolytes were prepared via solution-casting method. The conductivity and permittivity characteristics of the material were studied. The biopolymer-salt complex formation have been analysed through Fourier Transform Infrared (FTIR) spectroscopy and X-ray diffraction (XRD). The conductivity of the sample was measured by EIS HIOKI. Upon addition of 20 wt.% of NB, highest conductivity of 3.25×10-4 μScm-1 was achieved at ambient temperature. The temperature dependence of the biopolymer electrolytes exhibit Arrhenius behaviour. This result had been further proven in FTIR study.

Vibrational, thermal and optical studies of 30TeO2-39.5B2O3-(30-x)ZnO-xLi2O-0.5 V2O5 (0 ≤ x ≤ 30 mol%) glass system

A series of glasses with novel composition 30TeO2-39.5B2O3-(30-x)ZnO-xLi2O-0.5V2O5 (0 ≤ x ≤ 30 mol%) were prepared using melt quenching technique. All glasses were characterized using XRD, Fourier transform infrared (FTIR) and Raman spectroscopies, Differential Scanning Calorimetry, Optical absorption and Electron Paramagnetic Resonance. The physical properties such as density, molar volume and oxygen packing density were calculated and discussed. FTIR and Raman spectral studies were performed to study the vibrational groups present in all the glasses. DSC analysis showed that the glass transition temperature (Tg) decreases with increase in Li2O content and the high thermal stability > 150 °C was observed for all glasses. Various optical parameters were calculated and variations in these values were correlated with structural changes in the glass network as revealed by FTIR and Raman studies. The estimated spin-Hamiltonian parameters of VO2+ from EPR spectra of glasses suggest that VO2+ is in octahedral site with tetragonal distortion.

Influence of Glutaraldehyde's Molecular Transformations on Spectroscopic Investigations of Its Conjugation with Amine-Modified Fe3O4 Microparticles in the Reaction Medium.

Glutaraldehyde (GA) is a widely used cross-linking agent in biological research due to its superior characteristics, such as high reactivity toward proteins, high stability, and cost-effectiveness. In this regard, analyzing spectral changes initiated by various molecular forms and transformations of GA in a reaction medium and its reaction with surface functional-modified solid spheres is vital for a successful bioconjugation process targeting the biomolecules of interest. In this work, we present Fourier transform-infrared (FT-IR), Raman, and UV-visible spectroscopic analyses of glutaraldehyde-modified Fe3O4 microparticles (magnetic beads) to confirm the conjugation between GA and magnetic beads. We also studied the molecular transformations of glutaraldehyde during the reaction with amine-modified magnetic beads via investigating the reaction medium of the glutaraldehyde solution. Our FT-IR and Raman studies confirmed that glutaraldehyde was successfully coupled on the magnetic beads. Furthermore, FT-IR and UV-vis studies on the glutaraldehyde solution revealed the multiple molecular forms of GA in an aqueous medium, and they also confirmed that glutaraldehyde transforms into other molecular forms while the reaction occurs with the magnetic beads.

Ionic Conductivity and Structural Properties for CMC - AN in Propylene Carbonate as Plasticizer in Solid Biopolymer Electrolytes

The present study aims to investigate the structural and ionic conductivity of carboxymethyl cellulose (CMC) - ammonium nitrate (AN) – propylene carbonate (PC) as proton conducting polymer electrolytes. The CMC-AN-PC were prepared via solution casting technique. The complexion of polymer electrolyte films has been confirmed via FTIR studies. Fourier transform infrared (FTIR) spectra showed the occurrence of complexation between the polymer electrolyte components. Impedance studies reveals that the highest ionic conductivity of CMC-AN-5wt% PC 6.5 × 10−3 Scm−1 was observed in polymer electrolyte system obtained at ambient temperature.