Chemical Physics Impact最新文献

{"title":"First principles investigation of bandgap modulation and light matter interaction in cubic X₂ScInI₆ halide double perovskites for emerging energy applications","authors":"Muhammad Yar Khan ,&nbsp;Muhammad Awais Jehangir ,&nbsp;It Ee Lee ,&nbsp;Qamar Wali ,&nbsp;Tariq Usman ,&nbsp;Li Xiaojie ,&nbsp;Abdullah Al Souwaileh","doi":"10.1016/j.chphi.2025.100920","DOIUrl":"10.1016/j.chphi.2025.100920","url":null,"abstract":"<div><div>Double perovskites as promising substitutes to address energy deficiencies, potentially serving as sustainable materials for energy production. The ongoing investigations into these compounds are essential for the advancement of optoelectronic devices. In this work, we conducted an inclusive examination of the properties of X₂ScInI₆ (A = K, Rb) double perovskite halides utilizing DFT calculations with the all-electron FP-LAPW+lo technique, particularly focusing on replenish able energy sensors. Our findings demonstrate that the energy of formation and Goldsmith's tolerance factor calculations suggest that these halides retain structural and thermodynamic stability in the cubic phase. The stability was further validated by Phonon Dispersion Spectra through the linear response method using the Material Studio code. An evaluation of the elastic properties indicated that the Pugh’s (B/G) and Poisson ratios suggest a ductile nature. We also computed band-gaps in cooperation with TB-mBJ, along with and without spin-orbit coupling (SOC). The bandgap metrics for K₂ScInI₆ (E_g = 1.965 eV and 1.911 eV) and Rb₂ScInI₆ (E_g = 1.993 eV and 1.940 eV) were derived using Trans and Blaha modified Becke-Johnson (TB-mBJ &amp; TB-mBJ+SOC) potentials. Additionally, we investigated the optical properties of these halides, focusing on their complex dielectric functions. Our results suggest that these X₂ScInI₆ (X = K, Rb) halides DPs can be effectively utilized in optoelectronic equipment due to their capacity to absorb light in the UV spectrum. We anticipate that our findings will aid future experimental studies on X₂ScInI₆ (X = K, Rb) for energy-efficient applications.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"11 ","pages":"Article 100920"},"PeriodicalIF":4.3,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144830653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Parametric study and optimisation of supercritical extraction of Chlorella Vulgaris microalgae using Response surface methodology","authors":"Milap G. Nayak ,&nbsp;Reena D. Gamit","doi":"10.1016/j.chphi.2025.100923","DOIUrl":"10.1016/j.chphi.2025.100923","url":null,"abstract":"<div><div>Microalgae <em>Chlorella vulgaris</em> is one of the potential feedstocks for fuel generation due to its high lipid content, rapid growth, easier cultivation and adaptability to the environment. In this work, <em>Chlorella vulgaris</em> microalgae were selected as the feedstock for the extraction of oil using supercritical CO_2. The effects of temperature, pressure, and extraction time on oil yield were investigated in parametric research. Extracted oil yield over time was further analyzed by the full Sovová mass transfer model, describing both the constant extraction rate (CER) and falling extraction rate (FER) periods effectively. Sovová model with high R² and low residual error showed a close agreement between predicted and observed values of oil extraction yield. Process parameters were fine-tuned using Central Composite Design (CCD) and Response Surface Methodology (RSM). High R² and R²_adj values confirmed the effectiveness of a quadratic model in describing the effects of both single and interaction variables. Analysis of variance (ANOVA) study revealed that temperature, the interactive effect between temperature and time, and pressure and time have a significant effect on extraction yield due to their lower p-value. ANOVA validated the accuracy of the model due to its lower coefficient of variation. A close agreement in predicted yield of 42.85 wt% and an actual yield of 41.94 wt% was observed at optimized conditions of 32.6 °C, 25.4 MPa, and 130.2 min. Other fatty acids, including 23.73 % linoleic acid and 55.8 % oleic acid, were detected by HPLC analysis. The oil is found to be suitable for the production of biodiesel due to its high iodine and saponification values, along with low acid values. <em>Chlorella vulgaris</em> has the potential to be a feasible and scalable feedstock for renewable energy applications. Also, extraction involving SC<img>CO₂ and its optimisation involving the RSM method showed an effective and statistically sound method for algal oil extraction.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"11 ","pages":"Article 100923"},"PeriodicalIF":4.3,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polar protic and aprotic solvents induced nonlinear optical and optical limiting properties of Xanthene dye: A DFT Study","authors":"Natarajan Arumugam ,&nbsp;Abdulrahman I. Almansour ,&nbsp;Rohith Ramasamy ,&nbsp;Rajadurai Vijay Solomon ,&nbsp;A.G. Bharathi Dileepan ,&nbsp;Madhappan Santhamoorthy ,&nbsp;S. Jeyaram","doi":"10.1016/j.chphi.2025.100927","DOIUrl":"10.1016/j.chphi.2025.100927","url":null,"abstract":"<div><div>Rose Bengal (RB), a xanthene dye, exhibits exceptional nonlinear optical (NLO) properties in both polar protic and aprotic solvents, including ethanol, methanol, 1-propanol, and acetone. The results indicate that the RB dye displayed both saturable and reverse saturable absorption characteristics due to negative and positive absorption, respectively. The third-order NLO susceptibility (χ³) of the RB dye is found to be the order of 10⁻⁶ esu. Additionally, the dye shows a notable thermo-optic coefficient of 10⁻⁵ K⁻¹ across various solvents. The RB dye exhibited an exceptionally low optical limiting threshold of 1.98 × 10² W/cm² in acetone when employed energy-spread optical limiters. We performed a multilinear regression analysis to investigate the solute-solvent interactions, revealing that the polarizability of the solvents significantly influenced the NLO properties, followed by other spectral features of the solvent. The NLO properties of RB dye were further explored using Density Functional Theory (DFT) calculations at the B3LYP/lanl2dz level of theory. Key NLO parameters, including linear polarizability (α), first-order hyperpolarizability (β), and second-order hyperpolarizability (γ), were evaluated in various solvent environments. The computational results highlight a clear solvent effect on the enhancement of NLO responses. These theoretical predictions are supported by experimental observations, confirming the solvent-dependent modulation of the dye’s NLO behavior.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"11 ","pages":"Article 100927"},"PeriodicalIF":4.3,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144893617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultrasonic-driven synthesis of Cu-chlorophyllin-stabilized silver nanoparticles for high-efficiency antimicrobial surgical suture coatings","authors":"Saran Sombutjiraporn ,&nbsp;Arjnarong Mathaweesansurn ,&nbsp;Rathawat Daengngern ,&nbsp;Ekarat Detsri","doi":"10.1016/j.chphi.2025.100925","DOIUrl":"10.1016/j.chphi.2025.100925","url":null,"abstract":"<div><div>A novel Cu-chlorophyllin-stabilized silver nanoparticle (Ag⁰_NPs-Chl_Cu) with potent antimicrobial properties was synthesized for the first time using an ultrasonically driven chemical reduction approach. In this approach, Cu-chlorophyllin (Chl_Cu) acts as a stabilizing ligand, while sodium borohydride functions as the chemical reductant. The formation mechanism of Ag⁰-NPs_CHL was elucidated, revealing that ultrasonic irradiation facilitates the in situ reduction of Ag (I) and its subsequent incorporation into the Chl_Cu complex. Four pyrrole rings coordinate with Ag⁰_NPs through four nitrogen atoms, which serve as adsorption sites for the anchorage of Ag⁰-NPs_CHL. Characterization by XPS revealed the presence of Ag-N bonding involving pyrrole units on the FCC structure of Ag⁰_NPs. Ag⁰_NPs-Chl_Cu demonstrated a zeta potential of (-) 35.57±3.54 mV with a spherical shape and an average size of 6.72±1.72 nm, resulting in a stable colloidal dispersion with a monodispersed index. The synthesized Ag⁰-NPs_CHL nanocomposites were subsequently deposited onto polyamide surgical sutures via an electrostatic Layer-by-Layer (LbL) self-assembly technique. The coated sutures exhibited &gt;99.9 % antibacterial efficiency against <em>E. coli</em> (ATCC25922), <em>S. aureus</em> (ATCC25923), and <em>A. baumanii</em> (ATCC19606). While nanoparticle accumulation was observed in human primary epidermal keratinocyte (HEKa) cells, no cytotoxic effects were detected in the epidermis. This study highlights the effectiveness of Chl_Cu as a dual stabilizing and coordinating agent for Ag⁰_NPs, offering a promising approach for developing antimicrobial surgical materials.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"11 ","pages":"Article 100925"},"PeriodicalIF":4.3,"publicationDate":"2025-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144763882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DFT investigation of adsorptions of C2×2 and C2×4 (X=H, F) molecules on Ni-decorated Mg4O4 nanoclusters","authors":"Shahin Abasaltian ,&nbsp;Reza Ghiasi ,&nbsp;Sahar Baniyaghoob","doi":"10.1016/j.chphi.2025.100924","DOIUrl":"10.1016/j.chphi.2025.100924","url":null,"abstract":"<div><div>In this research, adsorptions of C₂×₂ and C₂×₄ (<em>X</em> = <em>H</em>, F) molecules on the Mg₄O₄ cluster and Ni-decorated Mg₄O₄ nanoclusters was inspected at the LC-ωPBE/6–311G(d,p) level of theory. Energetic aspects of adsorption process were exemplified. Structural parameters and polarity changes in the studied systems were explored. Molecular orbital analysis of the Mg₄O₄…C₂×₂, Mg₄O₄… C₂×₄, (<em>X</em> = <em>H</em>, F) and corresponding Ni-decorated molecules was provided. Charge decomposition analysis (CDA) was used to illustration charge transfer between two fragments. Characterizations of NiC bonds were studied by Quantum theory of atoms in molecules (QTAIM) analysis. Also, interactions between cluster with C₂×₂ and C₂×₄ molecules were explored with interacting quantum atoms (IQA) approach. Noncovalent interaction (NCI) analysis provided useful information about interactions between fragments.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"11 ","pages":"Article 100924"},"PeriodicalIF":4.3,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144781005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Large π-π interconnected guanidine based high-energy compounds and their trigger bonds","authors":"Luehao Shen ,&nbsp;Zhipeng Li ,&nbsp;Xiao Li ,&nbsp;Xinping Long ,&nbsp;Bisheng Tan","doi":"10.1016/j.chphi.2025.100918","DOIUrl":"10.1016/j.chphi.2025.100918","url":null,"abstract":"<div><div>TNB, triazole, tetrazole, furoxan, guanidine, etc. are the basic building blocks for building high-energy compounds. Compounds with different structures and properties can be obtained by combining them in different ways (through atomic or group bridging, spiking, fusing, etc.). How to measure the effectiveness of their connection is what we must consider when designing high-energy compounds. Guanidine is Y-aromatic, and it is connected with other single or several aromatic rings to form large π-π interconnected compounds. The large π-π separation energy can measure the additional stabilization energy of large π-π interconnected structures due to electron delocalization, which is a new index of aromatic extension or aromaticity of compounds. It is also a major index of molecular deformability of high-energy compounds proposed by us (such as resonance energy, strain energy, large π-π separation energy, molecular polarizability, etc.), how these molecular deformability indicators affect the energy and stability of explosive molecules is a question that needs to be answered. In this paper, the large π-π separation energies of large π-π interconnected guanidine derivatives are calculated by the density functional method and the design of isodesmic reactions. The influence of molecular deformability on trigger bonds is revealed, and the understanding of the nature of trigger bonds is improved.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"11 ","pages":"Article 100918"},"PeriodicalIF":4.3,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144756941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bactericidal and antivirulence potential of sulphate-functionalized nanocellulose extracted from Nelumbo nucifera Gaertn","authors":"Monica K.J. Nidhi ,&nbsp;Nagaraja H ,&nbsp;Hanumantagouda Basavanagoudra ,&nbsp;Kotresh M Goudar ,&nbsp;B. Uma Reddy","doi":"10.1016/j.chphi.2025.100921","DOIUrl":"10.1016/j.chphi.2025.100921","url":null,"abstract":"<div><div>The World Health Organization (WHO) has issued a stark warning that the world is “running out of antibiotics,” amplifying concerns about the escalating threat of antibiotic resistance. The growing prevalence of antibiotic-resistant (AR) bacteria has severely undermined the effectiveness of current treatments for infectious diseases. This issue is particularly critical in managing diabetic foot infections (DFIs), a leading cause of non-traumatic lower limb amputations, with pathogens such as <em>Staphylococcus aureus</em> and <em>Pseudomonas aeruginosa</em> playing a dominant role in severe infections, often accompanied by <em>Enterococcus faecalis</em> and <em>Escherichia coli</em>. In response to this urgent healthcare challenge, the present study evaluates the antimicrobial and antivirulence properties of sulphate-functionalized nanocellulose (S-NC), synthesized from <em>Nelumbo nucifera</em> Gaertn.</div><div>The S-NC exhibited potent antibacterial activity against key DFI-associated pathogens, primarily through the disruption of biofilm formation. Moreover, it effectively inhibited quorum sensing-regulated virulence factors, reducing pyocyanin (68.58 %) and pyoverdine (70.33 %) production in <em>P. aeruginosa</em>, and staphyloxanthin (67.90 %) in <em>S. aureus</em>. Structural characterization confirmed favorable physicochemical properties: X-ray diffraction (XRD) revealed high crystallinity (74.83 %), field emission scanning electron microscopy (FE-SEM) showed a helical fibrous morphology with minimal agglomeration, transmission electron microscopy (TEM) indicated an aspect ratio of 6.53, and UV–Visible spectroscopy determined a band gap energy of 4.25 eV.</div><div>Furthermore, S-NC demonstrated excellent hemocompatibility and notable antioxidant potential, with a radical scavenging activity of 82.45 %. These findings suggest that <em>Nelumbo nucifera</em>-derived S-NC holds promise as a multifunctional therapeutic agent for combating antibiotic resistance and improving infection outcomes in biomedical applications.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"11 ","pages":"Article 100921"},"PeriodicalIF":4.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144829012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanistic insights into dye adsorption on chitosan-functionalized bentonite: synergizing experiments and computational study","authors":"Rachid Et-tanteny ,&nbsp;Ibrahim Allaoui ,&nbsp;Rachid Haloui ,&nbsp;Souad Elkhattabi ,&nbsp;Khalid Draoui ,&nbsp;Karim El Khadiri","doi":"10.1016/j.chphi.2025.100919","DOIUrl":"10.1016/j.chphi.2025.100919","url":null,"abstract":"<div><div>Natural Moroccan bentonite (Bnt) exhibited a high adsorption capacity for crystal violet (CV, a cationic dye), reaching 157.37 mg/g. Conversely, its affinity for methyl orange (MO, an anionic dye) was limited (20.14 mg/g). However, the synthesized bentonite-chitosan composite (Bnt-Cs) features protonated amine groups, which enhance electrostatic and hydrogen-bond interactions, increasing the adsorption of MO dye by 76.65%. The kinetic data revealed that MO adsorption followed the pseudo-first-order (PFO) model, whereas CV adsorption was better described by the pseudo-second-order (PSO) model. These two models are governed by distinct diffusion mechanisms. Moreover, the adsorption isotherms for both dyes aligned well with the Freundlich model. Additionally, the Density Functional Theory (DFT) calculations indicated that CV’s narrower HOMO–LUMO gap and higher molecular softness were consistent with its enhanced reactivity and stronger interaction with the adsorbent. Furthermore, the molecular dynamics (MD) simulations confirmed the spontaneous, physically driven nature of the adsorption process. The close agreement between computational predictions and experimental data provides robust validation for the proposed adsorption mechanisms, offering clear mechanistic insights into dye adsorption processes.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"11 ","pages":"Article 100919"},"PeriodicalIF":4.3,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144725029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The temporal evolution of UFPs, HCHO, HONO and changes in atmospheric composition in the southeast of UK","authors":"Balendra V.S. Chauhan ,&nbsp;Maureen J. Berg ,&nbsp;Ajit Sharma ,&nbsp;Kirsty L. Smallbone ,&nbsp;Kevin P. Wyche","doi":"10.1016/j.chphi.2025.100916","DOIUrl":"10.1016/j.chphi.2025.100916","url":null,"abstract":"<div><div>This study investigates the temporal evolution of ultrafine particles (UFPs, Dp &lt; 100 nm), sub-micron particles (100 &lt; Dp &lt; 800 nm), and reactive gases including formaldehyde (HCHO) and nitrous acid (HONO) in southeast UK urban air. Data were collected at the Brighton Atmospheric Observatory (BAO) from July 2015 to June 2023 using high-resolution instrumentation, including scanning mobility particle sizers and condensation particle counters, alongside gas analysers and meteorological sensors. UFP number concentrations displayed distinct seasonal and diurnal patterns, with smaller particles (20–70 nm) influenced by local emissions and larger ones (70–800 nm) showing evidence of regional transport. Strong correlations (e.g., R² = 0.79 between N30_50 and N50_70) indicate sequential growth likely driven by coagulation and shared sources. HCHO peaked around midday during summer due to enhanced photochemistry, while HONO levels were higher in colder months, likely due to reduced dispersion and surface-mediated formation. Polar plot analysis revealed direction-specific pollutant enhancements, with elevated levels of NO₂, SO₂, HCHO, and HONO associated with distinct wind sectors, suggesting both local and transported source contributions. These patterns underscore the interplay between emissions, atmospheric processing, and meteorological factors. Hence, the study provides new insights into UFP behaviour and secondary pollutant dynamics in an urban coastal setting. The findings highlight the need for seasonally adaptive air quality strategies and contribute valuable evidence to support public health and regulatory decision-making.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"11 ","pages":"Article 100916"},"PeriodicalIF":3.8,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cellular interactions of colloidal nanosilver and role of alginate capping in prevention of soluble Ag+ leaching","authors":"Harshavardhaan Movva ,&nbsp;Aparajita Karmakar ,&nbsp;Senthil Kumar Hariom ,&nbsp;Rajapriya S ,&nbsp;Md․Gulzar ull Hasan ,&nbsp;Raunak Kumar Das ,&nbsp;Everette Jacob Remington Nelson ,&nbsp;Priyanka Srivastava","doi":"10.1016/j.chphi.2025.100915","DOIUrl":"10.1016/j.chphi.2025.100915","url":null,"abstract":"<div><div>Biological effects including antimicrobial potencies of nanosilver are well known. Nanosilver particularly, small silver particles having a biopolymer as capping agent have been suggested to be more compatible to cells and biological system. Hypothesis says that a biopolymer, being large in size, could prevent the leaching of Ag⁺ ions, which are the primary cause of AgNPs toxicity. In order to corroborate this, we synthesized colloidal silver solution which was both reduced and capped by alginate solution and Ag⁺ ion release kinetics was performed. Overall, it was noted that mechanical agitation aids in the process of ion release which was maximum within first 30 min. (1.8 ± 1 ppm) whereas, only 0.19 ± 0.6 ppm release was observed in non-shaking conditions, in the same duration. After 30 min, the ion release was negligible, irrespective of agitation. Interestingly, the maximum amount of Ag⁺ ion released was only 5.6 % of total. Further, the colloidal silver was examined for antioxidant activity which was surprisingly higher than the standard ascorbic acid solution. Activity of two key digestive enzymes pepsin and α-amylase was assessed in presence of silver particles in SIF and SSF, respectively. Pepsin was unaffected but α-amylase showed reduced activity with increasing particle concentration (<em>p</em> &lt; 0.05). Next, we examined the biological effects of alginate-capped nanosilver on six bacterial strains that predominantly populate wound sites and a panel of mammalian cells. Response of microbes was both dose- and time-dependent. Among tested, <em>P. mirabilis</em> and <em>K. pneumoniae</em> were able to revive themselves after 24 h. On the other hand, IC₅₀ of the nanosilver on HADSCs, A-431, HaCaT, HEK-293, HeLa, and THP-1 was as low as 13.22, 5.96, 6.289, 12.74, 6.0, 5.6 ppm, respectively. Lastly, through intravenous administration of particles in female BalB/ mice and image analysis, we were able to get an overview of particle safety on mouse organs.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"11 ","pages":"Article 100915"},"PeriodicalIF":3.8,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}