Materials Advances最新文献

{"title":"Characterization and assessment of cleaning systems based on fatty acid methyl esters (FAMEs) for the removal of wax-based coatings from cultural heritage objects†","authors":"Chiara Biribicchi, Michael Doutre and Gabriele Favero","doi":"10.1039/D4MA00781F","DOIUrl":"https://doi.org/10.1039/D4MA00781F","url":null,"abstract":"<p >This study focuses on the characterization of fatty acid methyl esters (FAMEs) and their implementation as solvents for removing beeswax and microcrystalline wax from cultural heritage materials, emphasizing their potential as sustainable alternatives to conventional solvents. FAMEs, derived from renewable sources through triglyceride transesterification, offer biodegradability and low toxicity. Additionally, the inclusion of an innovative aluminum stearate-based organogelator aims to regulate the evaporation rate of FAMEs, enhancing their application on artwork surfaces while minimizing their penetration into a substrate. Solubility tests, scanning XRF, spectrophotometry, SEM, FT-IR ATR, and contact angle measurements confirmed that all tested cleaning systems could remove up to 99% of beeswax and microcrystalline wax. Volume effectiveness calculations demonstrate that lower-polarity FAMEs, with reduced evaporation rates, require smaller solvent volumes. Restricting evaporation and solvent quantities enhances sustainability and reduces environmental and operator risks. However, adopting less volatile solvents necessitates novel application methodologies to mitigate their penetration and retention in porous artwork substrates. This research underscores FAMEs’ potential not only as solvent alternatives but also as promoters of sustainable conservation practices.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 23","pages":" 9359-9375"},"PeriodicalIF":5.2,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ma/d4ma00781f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142694718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Probing the thermoelectric and optical performance of half-Heusler PtZrX (X = Si, Ge) semiconductors: a first principles investigation","authors":"Bharti Gurunani and Dinesh C. Gupta","doi":"10.1039/D4MA00986J","DOIUrl":"https://doi.org/10.1039/D4MA00986J","url":null,"abstract":"<p >In this study, we employed first-principles calculations based on density functional theory (DFT) implemented within the WIEN2k code to investigate the comprehensive material properties of PtZrX alloys (X = Si, Ge). This investigation encompassed structural, mechanical, electronic, thermal, optical, and thermoelectric characteristics. The lattice parameters, bulk modulus, and cohesive energy of these alloys were determined under the conditions of absolute zero temperature (0 K) and ambient pressure (0 GPa). The obtained results demonstrate that PtZrSi and PtZrGe exhibit both anisotropic and elastically stable characteristics. Furthermore, both alloys display indirect bandgap semiconducting behavior with bandgaps of 1.43 eV and 1.32 eV for PtZrSi and PtZrGe, respectively. We utilize density functional perturbation theory (DFPT) to predict the dynamical behavior of these ordered systems. The calculated standard enthalpy of formation further corroborates their thermodynamic stability. Analysis of Young's and shear modulus revealed that PtZrSi possesses superior stiffness compared to PtZrGe. The dielectric function was employed to explore the optical properties, suggesting potential applications in optoelectronics, as corroborated by the analysis of the optical spectra. Moreover, this research suggests the potential of these alloys as efficient thermal insulators for solar heating applications. Finally, the BoltzTrap code was utilized to compute the temperature-dependent thermoelectric properties, providing valuable insights into their potential applications in thermoelectric devices.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 23","pages":" 9340-9358"},"PeriodicalIF":5.2,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ma/d4ma00986j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142694714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A lignin-based biocomposite hydrogel for antimicrobial and wound healing applications†","authors":"Jaskiran Preet, Khushboo Pathania, Jasdeep Kaur, Rachna Singh, Deepak B. Salunke and Sandip V. Pawar","doi":"10.1039/D4MA00680A","DOIUrl":"https://doi.org/10.1039/D4MA00680A","url":null,"abstract":"<p >Skin, the body's largest organ, plays a key role in protection, sensory perception, temperature regulation, and immune defense. Any damage to this protection makes the skin susceptible to infections and though the body heals itself, wound healing, however, is often challenged by various factors. Current wound dressing options encompass hydrogels, films, wafers, nanofibers, foams, topicals, patches, sponges, and bandages. Among these, hydrogels offer unique advantages such as creating a conducive moist environment, high moisture retention, and a barrier against bacterial intrusion, making them ideal for managing exudative and granulating wounds. Biopolymers are being preferred over synthetic polymers for the development of hydrogels owing to their non-toxic, biodegradable, and biocompatible properties. In this study, hydrogels were synthesized successfully using lignin and chitosan as biopolymers, chondroitin sulphate as a cross-linker, and poly-vinyl alcohol as an emulsifier, respectively. The hydrogels were loaded with oxytetracycline (OTC), a broad-spectrum antibiotic, in varying doses to provide antibacterial efficacy for wound management, recognizing wounds' susceptibility to infections. The hydrogels were characterized by FTIR, DSC, and scanning electron microscopy, revealing smooth surfaces. OTC release followed a time-dependent pattern, with 25% and 13% drug released at pH 7.4 and 4, respectively. The hydrogels were found to be non-hemolytic and exhibited non-cytotoxic properties towards mouse fibroblast cells. Fibroblast cell migration rates and antibacterial activity against Gram-negative (<em>E. coli</em>) and Gram-positive bacteria (<em>S. aureus</em>) highlighted the hydrogels' potential for wound healing and bacterial protection. These findings suggest that biopolymer-based, drug-loaded hydrogels hold promise for advancing wound care treatments.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 23","pages":" 9445-9457"},"PeriodicalIF":5.2,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ma/d4ma00680a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142694724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enabling improved PSF nanocomposite membrane for wastewater treatment with selective nanotubular morphology of PANI/ZnO†","authors":"Aqsa Zahid, Hafiza Hifza Nawaz, Amna Siddique, Basheer Ahmed, Shumaila Razzaque, Xuqing Liu, Humaira Razzaq and Muhammad Umar","doi":"10.1039/D4MA00859F","DOIUrl":"https://doi.org/10.1039/D4MA00859F","url":null,"abstract":"<p >Increased population and rapid industrialization are depleting and polluting the fresh water resources at an alarming rate, leading to freshwater scarcity. Water pollution caused by heavy metal ions and dyes has become a major problem and has numerous adverse effects on human health. In recent years, nanotechnology has gained much attention in the field of water purification but new approaches in nanomaterials are still required to boost their removal efficiency. This study deals with membrane fabrication by using a novel hybrid polysulfone (PSF)/polyaniline (PANI) nanotube with zinc oxide (ZnO) nanorods <em>via</em> the phase inversion method. Two different schemes were employed for membrane fabrication, <em>i.e.</em> PSF/PANI blend and ZnO–(PSF/PANI). Nanomaterials were characterized by FTIR, UV, SEM and XRD. Membrane properties such as porosity, pure water flux (PWF), contact angles, solvent contents, protein rejection and flux recovery ratio (FRR) were studied. Incorporation of PANI and ZnO as nanofillers significantly improved solvent content, lowered water contact angles and enhanced antifouling properties. The FRR reached about 87.4% and PWF also increased from 20 to 136.3 L m<small>⁻²</small> h<small>⁻¹</small> bar<small>⁻¹</small> representing enhanced hydrophilicity. Among various compositions, the PP 0.25 nanocomposite membrane demonstrated a maximum removal of 91.2% MB and 94.3% Mn<small>⁷⁺</small> and PPZ 0.25 showed removal of 95.18% MB and 96.21% Mn<small>⁷⁺</small> at 0.1 MPa. Based on the above results, the PSF/PANI and ZnO–(PSF/PANI) nanocomposite membranes are recommended for practical use in wastewater treatment.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 23","pages":" 9471-9487"},"PeriodicalIF":5.2,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ma/d4ma00859f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142694730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Selective placement of functionalised DNA origami via thermal scanning probe lithography patterning†","authors":"Tingting Zheng, Caoimhe O’Neill, John F. Marshall, Thomas Iskratsch and Matteo Palma","doi":"10.1039/D4MA00828F","DOIUrl":"10.1039/D4MA00828F","url":null,"abstract":"<p >Here we present a nanopatterning strategy utilising thermal scanning probe lithography (t-SPL) for the precise organisation of DNA origami into nanoarrays. The aim of this approach is to demonstrate control in the fabrication of nanoarray platforms exhibiting single-molecule accuracy. Combining the inherent programmability of DNA origami structures with t-SPL nanopatterning, we demonstrated the controlled immobilisation on surfaces of functionalised DNA origami – as proof of concept we employed gold nanoparticles (AuNPs) and quantum dots (QDs) – at predefined positions and in nanoarray configurations. This method holds great potential for the construction of hetero-functionalised biomolecular nanoarrays with single-molecule control, with applications in bionanotechnology and (nano)materials science.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 23","pages":" 9376-9382"},"PeriodicalIF":5.2,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11563210/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142648618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perylene diimide architecture-based electromechanical sensors: a systematic experimental and theoretical framework for the comparative analysis and study of the transduction mechanism†","authors":"Aditya Tiwari, Vivek Adepu, Rikitha S. Fernandes, Nilanjan Dey, Parikshit Sahatiya and Sayan Kanungo","doi":"10.1039/D4MA00846D","DOIUrl":"https://doi.org/10.1039/D4MA00846D","url":null,"abstract":"<p >This work presents a detailed comparative study on the effects of functional groups on engineered PDI (perylene diimide) compounds for pressure and breath sensing applications using experimental findings and density functional theory (DFT)-based theoretical calculations. The results demonstrate that the deposition of <em>N</em>-substituted perylene-3,4-dicarboxylic acid imide derivatives (<strong>PDI-1</strong>, <strong>PDI-2</strong>, <strong>PDI-3</strong>, and <strong>PDI-4</strong>) with different functional groups (3-aminopentane, 2,5-di-<em>tert</em>-butylaniline, 1-phenylethylamine, <em>etc.</em>) on the paper substrate forms a moderately conducting percolating molecular network with enhanced pressure and breath-sensing performances. The determined pressure sensitivity value for <strong>PDI-1</strong> was 0.315 kPa<small>⁻¹</small>, for <strong>PDI-2</strong> was 1.266 kPa<small>⁻¹</small>, for <strong>PDI-3</strong> was 0.749 kPa<small>⁻¹</small>, and for <strong>PDI-4</strong> was 2.120 kPa<small>⁻¹</small>. Among all the fabricated PDI-based pressure sensors, <strong>PDI-4</strong> displayed maximum sensitivity owing to the inherent asymmetric nature of the compound with two different terminal substituents. The sensor displayed a steady response of up to ∼8000–10 000 cycles, confirming the mechanical sturdiness of fabricated PDI-based pressure sensors. The DFT-based theoretical analysis offers detailed insight into the transduction mechanism of pressure and breath sensing for different PDI molecules, wherein it can be surmised that both the structural configuration and electronic properties of <strong>PDI-4</strong> (<strong>PDI-1</strong>) are suitable (undesirable) to ensure a large increase in intermolecular tunneling components and, thereby, in the overall conductivity of the percolating network under applied pressure. Hence, <strong>PDI-4</strong> (<strong>PDI-1</strong>) is the most (least) favorable PDI molecule for pressure sensing applications. In contrast, a moderate response can be expected in <strong>PDI-2</strong> and <strong>PDI-3</strong> during pressure sensing as two competing factors influence the overall efficacy of transduction in these cases.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 23","pages":" 9243-9258"},"PeriodicalIF":5.2,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ma/d4ma00846d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142694707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Active transfection of genetic materials using cyclodextrin-anchored nanovectors","authors":"Amey Revdekar, Bhagyashree V. Salvi and Pravin Shende","doi":"10.1039/D4MA00852A","DOIUrl":"https://doi.org/10.1039/D4MA00852A","url":null,"abstract":"<p >Gene-based therapy is a sophisticated means for the treatment of various complex diseases like AIDS, cancer, <em>etc.</em>, as it resolves the genetic malfunction at the source instead of tackling the superficial symptoms. However, the therapeutic, diagnostic, and theranostic potential of gene-based therapeutic actives such as siRNA, mRNA, pDNA, aptamers, <em>etc.</em> is hindered by physicochemical as well as physiological barriers in the form of insufficient bioavailability, systemic metabolism, rapid renal clearance, inefficient carrier systems, <em>etc.</em> Although advanced carrier systems such as polyplexes, lipoplexes, dendriplexes, hydrogels, polyrotaxanes, <em>etc.</em> are employed to overcome such challenges, their structural configuration results in notable cytotoxicity to induce bio-incompatibility. In this context, strategic integration of cyclodextrins subdues the cytotoxicity by virtue of unique architectural characteristics and allows the fabrication of sophisticated systems for delivery of gene-based therapeutics. Inclusion of cyclodextrins offers benefits like enhanced protection of gene-targeted payloads, compact loading, nanoscale carrier dimensions, biostability, <em>etc.</em> by forming densely packed cargo systems. Cyclodextrins nullify the active cationic moieties to lower <em>in vivo</em> cytotoxicity and improve transfection efficiency across biomembranes. The multi-ligand binding capability of structurally-modulated cyclodextrins avails receptor specificity and gene-targeted therapeutic efficiency. The ability to form reversible covalent linkages allows the fashioning of multi-stimuli responsive supramolecular nanocarriers for a desirable drug release profile. The present review article features cyclodextrins and associated successful applications as the integral components of non-viral nanovectors such as cationic polymers, dendrimers and polyrotaxanes as well as supramolecular assemblies for efficient delivery of RNA-, DNA- and aptamer-based genetic payloads for the achievement of desired treatment outcomes.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 24","pages":" 9548-9564"},"PeriodicalIF":5.2,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ma/d4ma00852a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A high-performance broadband organic flexible photodetector from a narrow-bandgap thiazolo[5,4-d]thiazole containing conjugated polymer","authors":"Sanjana Mathew, Sayan Halder, Keerthi C. J., Saurjyesh Hota, Maitreyi Suntha, Chanchal Chakraborty and Subhradeep Pal","doi":"10.1039/D4MA00780H","DOIUrl":"https://doi.org/10.1039/D4MA00780H","url":null,"abstract":"<p >Our present study developed high-performance organic photodetectors (OPDs) with broad-spectrum capabilities utilizing a thiazolo[5,4-<em>d</em>]thiazole containing a high-mobility conjugated polymer P-TZTZ. The low bandgap polymer with 2D nanosheet morphology is synthesized by an easy condensation reaction between dithiooxamide and terephthalaldehyde. Based on the used substrate (Si-wafer and PET substrate), two variants of the proposed photodetectors were fabricated. Both variants of the fabricated photodetectors (PDs) demonstrated comparable photodetection capabilities in a broad region from 400 to 1000 nm. Under the presence of a broadband white light source, the peak photo-to-dark current ratio (PDCR) values for the PD fabricated on Si-substrate (PD1) are calculated to be 42.58 and 5.68 at the bias voltage (<em>V</em><small>_B</small>) of −0.1 and +1.0 V, respectively. Similarly, the PD fabricated on ITO-coated PET substrate (PD2) under the influence of a broadband white light source offered PDCR values of 8.65 and 7.25 at a <em>V</em><small>_B</small> of −4 V and +4 V, respectively. Experimental findings indicate that the fabricated PD1 achieves a peak responsivity of 2.12 A W<small>⁻¹</small> at 410 nm with peak external quantum efficiency (EQE) values of 6.41% and 4.32% at 410 and 530 nm, respectively. The specific detectivity (<em>D)</em> values are estimated to be 4.42 × 10<small>¹³</small> Jones at 410 nm and 3.71 × 10<small>¹³</small> Jones at 530 nm. Similarly, the fabricated PD2 achieves the peak responsivity, external quantum efficiency, and specific detectivity values of 1.98 A W<small>⁻¹</small>, 5.9% and 1.71 × 10<small>¹³</small> Jones at 410 nm, respectively. Transient performance analysis revealed that the P-TZTZ-based flexible PD exhibited rise and fall times of 180 ms and 100 ms, respectively. The high responsivity, detectivity, and millisecond-order switching time in rigid and flexible P-TZTZ-based PDs demonstrate the versatility and potential for diverse applications covering from rigid to flexible electronics.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 23","pages":" 9488-9499"},"PeriodicalIF":5.2,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ma/d4ma00780h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142694731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and magneto-dielectric properties of Ti-doped Ni0.5Zn0.5TixFe2−xO4 ferrite via a conventional sol–gel process","authors":"M. Farzana Alam, M. Atikur Rahman, Md. Sarowar Hossain, M. N. I. Khan, R. Rashid, M. Saiful Islam, William Ghann, M. K. Alam and Jamal Uddin","doi":"10.1039/D4MA00529E","DOIUrl":"https://doi.org/10.1039/D4MA00529E","url":null,"abstract":"<p >Ni–Zn-based ferrites (NZFO) need to possess the ideal ratio of dielectric and magnetic characteristics for uses involving electromagnetic fields. Consequently, the NZFO system has been modified by Ti<small>⁴⁺</small> substitution at Fe<small>³⁺</small> producing Ni<small>_0.5</small>Zn<small>_0.5</small>Ti<small>_<em>x</em></small>Fe<small>_{2−<em>x</em>}</small>O<small>₄</small> (<em>x</em> = 0.00, 0.02, 0.04, 0.06, 0.08 and 0.10) and a conventional sol–gel process was followed for the synthesis. The structure of the synthesized samples was evaluated from the X-ray diffraction (XRD) patterns. Fourier transform infrared (FTIR) measurement provided information on chemical interaction with thermodynamic conditions. In addition, the grain sizes were obtained from scanning electron microscopy (SEM). Furthermore, the studied samples exhibit a notable light absorption in the visible spectrum with band gaps between 3.8 and 4.8 eV. The magneto-dielectric properties were analyzed by field (<em>H</em>) dependent magnetization (<em>M</em>), frequency-dependent permeability (<em>μ</em>), and permittivity (<em>ε</em>) measurements. Ti<small>⁴⁺</small> substitution in NZFO led to a decrease in magnetic saturation (<em>M</em><small>_s</small>) and <em>μ</em> while the values of creased and improved the mismatching impedance (<em>Z</em>/<em>η</em><small>₀</small> = (<em>μ</em>′/<em>ε</em>′)<small>^1/2</small>). The lowest value of <em>M</em><small>_s</small> (14 emu g<small>⁻¹</small>) is achieved for the sample with <em>x</em> = 0.1 for which <em>μ</em> is also the lowest. Finally, a stable value of <em>Z</em>/<em>η</em><small>₀</small> (∼4.0) has been obtained for the <em>x</em> = 0.10 sample over a wide range of frequencies (1–10 MHz), making it suitable as a miniaturizing device material in this frequency range.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 22","pages":" 9041-9054"},"PeriodicalIF":5.2,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ma/d4ma00529e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sodium alginate-nanocellulose-based active composite film for edible oils packaging applications†","authors":"Sazzadur Rahman, Chandramani Batsh, Shalini Gurumayam, Jagat Chandra Borah and Devasish Chowdhury","doi":"10.1039/D4MA00670D","DOIUrl":"https://doi.org/10.1039/D4MA00670D","url":null,"abstract":"<p >Edible oils are prone to spoilage through aerial oxidation, leading to a reduction in their shelf life. In this study, we developed a nanocomposite biopolymer film designed for packaging edible oils. To enhance the antioxidant properties of the film, an extract from <em>Moringa oleifera</em> plants was obtained through solvent extraction and incorporated into the biopolymer. This infusion of plant extract bestowed antioxidant characteristics upon the resulting material. It was determined by GC–MS that <em>Moringa oleifera</em> water extract contains 9-octadecenamide, (<em>Z</em>)-(an Oleamide), which provides antioxidant properties. Additionally, cellulose nanofibers (CNF) were extracted from <em>Terminalia arjuna</em> plant fruits using the acid hydrolysis method. These CNFs were further introduced into the biopolymer to reinforce its mechanical properties of the biopolymer. The stability of the biopolymer film was evaluated in various edible oils (<em>viz.</em> mustard oil, olive oil, soybean oil, and sunflower oil), and the optimized nanocomposite film exhibited a tensile strength of approximately 44 MPa in the dry state. The antioxidant capacity was assessed using DPPH (2,2-diphenyl-1-picrylhydrazyl) and ABTS (2,2′-azina-bis(3-ethylbenzothiazoline-6-sulfonic acid)) free radical scavenging assays. The plant extract-based biopolymer nanocomposite film, specifically the (0.25CNF-4WME-SA) formulation, demonstrated the highest antioxidant activity, reaching 60.55% and 41.33% against ABTS and DPPH, respectively. The practical effectiveness of the 0.25CNF-4WME-SA film was further demonstrated through its application in packaging edible oil, showcasing its ability to scavenge free radicals generated during the storage of edible oil. The cytotoxicity of the fabricated film was evaluated using CC1 hepatocyte cells as an <em>in vitro</em> model. The developed nanocomposite material, incorporating plant extract, holds promise as an active packaging material for edible oils.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 23","pages":" 9314-9329"},"PeriodicalIF":5.2,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ma/d4ma00670d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142694712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}