Hydrophobic modification of polysaccharides enhances their potential as emulsion stabilizers and encapsulating agents, but their biocompatibility and biodegradability must be assessed first. In this study levan polysaccharide was modified by dodecenyl succinic anhydride (DDSA) for the first time, and characterized by Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR), scanning electron microscopy (SEM), atomic force microscopy (AFM), dynamic light scattering (DLS) and thermogravimetric and differential thermal analysis (TGA/DTA). The mentioned methods confirmed the grafting reaction and showed that the modification increases the roughness of the polysaccharide film, while thermostability and porosity of the levan stays preserved. Environmental behaviour and biocompatibility were compared for modified levans with a degree of substitution in the range of 0.032 to 0.048 prepared by octenyl succinic anhydride (OSA) or DDSA treatment at concentrations of 5 to 10 % (w/w). In a 28-day soil biodegradation test, the overall degradation of modified levans was in the range of 63-78 %. Modified levans at a concentration of up to 40 mg/mL had no adverse effects on A. fischeri bioluminescence. Also, in a test with a normal foetal lung fibroblast MRC-5 cell line, no cytotoxicity was measured for OSA- and DDSA-modified levans at concentrations up to 1 mg/mL.

Background/Objectives: Antimicrobial resistance (AMR) poses a significant public health threat, leading to increased mortality. The World Health Organization has established a priority list highlighting critical multidrug-resistant (MDR) pathogens that demand urgent research on antimicrobial treatments. Considering this and the fact that new antibiotics are only sporadically approved, natural antibacterial agents have seen a resurgence in interest as potential alternatives to conventional antibiotics and chemotherapeutics. Natural antibacterials, derived from microorganisms, higher fungi, plants, animals, natural minerals, and food sources, offer diverse mechanisms of action against MDR pathogens. Here, we present a comprehensive summary of antibacterial agents from natural sources, including a brief history of their application and highlighting key strategies for using microorganisms (microbiopredators, such as bacteriophages), plant extracts and essential oils, minerals (e.g., silver and copper), as well as compounds of animal origin, such as milk or even venoms. The review also addresses the role of prebiotics, probiotics, and antimicrobial peptides, as well as novel formulations such as nanoparticles. The mechanisms of action of these compounds, such as terpenoids, alkaloids, and phenolic compounds, are explored alongside the challenges for their application, e.g., extraction, formulation, and pharmacokinetics. Conclusions: Future research should focus on developing eco-friendly, sustainable antimicrobial agents and validating their safety and efficacy through clinical trials. Clear regulatory frameworks are essential for integrating these agents into clinical practice. Despite challenges, natural sources offer transformative potential for combating AMR and promoting sustainable health solutions.

Background/Objectives: Antimicrobial resistance poses a major public health challenge. The World Health Organization has identified 15 priority pathogens that require prompt development of new antibiotics. This review systematically evaluates the antibacterial resistance of the most significant bacterial pathogens, currently available treatment options, as well as complementary approaches for the management of infections caused by the most challenging multidrug-resistant (MDR) bacteria. For carbapenem-resistant Gram-negative bacteria, treatment options include combinations of beta-lactam antibiotics and beta-lactamase inhibitors, a novel siderophore cephalosporin, known as cefiderocol, as well as older antibiotics like polymixins and tigecycline. Treatment options for Gram-positive bacteria are vancomycin, daptomycin, linezolid, etc. Although the development of new antibiotics has stagnated, various agents with antibacterial properties are currently in clinical and preclinical trials. Non-antibiotic strategies encompass antibiotic potentiators, bacteriophage therapy, antivirulence therapeutics, antimicrobial peptides, antibacterial nanomaterials, host-directed therapy, vaccines, antibodies, plant-based products, repurposed drugs, as well as their combinations, including those used alongside antibiotics. Significant challenges exist in developing new antimicrobials, particularly related to scientific and technical issues, along with policy and economic factors. Currently, most of the alternative options are not part of routine treatment protocols. Conclusions and Future Directions: There is an urgent need to expedite the development of new strategies for treating infections caused by MDR bacteria. This requires a multidisciplinary approach that involves collaboration across research, healthcare, and regulatory bodies. Suggested approaches are crucial for addressing this challenge and should be backed by rational antibiotic use, enhanced infection control practices, and improved surveillance systems for emerging pathogens.

The objective of this study was to investigate chemical composition, antimicrobial and cytotoxic activities of dried methanol and dichloromethane extracts of the flowering tops (herb) of yarrow, Achillea millefolium L. (Asteraceae) collected from natural habitat in Serbia. This plant, predominantly distributed in the northern hemisphere, is widely used in folk medicine, but also as an important crop for pharmaceutical and cosmetic industries, primarily due to its appetite-stimulating, choleretic, gastroprotective, spasmolytic, analgesic, antiinflammatory, astringent, antioxidant and/or antimicrobial activities. GC-FID and GC-MS analysis of unsaponifiable fraction of dichloromethane extract showed that the most abundant compounds were alpha-amyrin, (1-sitosterol, one taraxasterol isomer and (1-amyrin. LC-MS analysis of methanol extract revealed 28 phenolic compounds, predominantly caffeoylquinic acids, as well as apigenin and luteolin type flavonoids. Further, microdilution assay showed that both extracts possess moderate antimicrobial activity against Listeria monocytogenes (both MICs 1.25 mg mL-1) and Candida albicans (MICs 2.5 and 0.3125 mg mL-1, respectively). Investigation of the antibiofilm effects showed that methanol extract significantly inhibited biofilm formation of L. monocytogenes, but did not disrupt L. monocytogenes mature biofilm. Additionally, the reduction in L. monocytogenes motility was induced by methanol extract in dose dependent manner. Furthermore, MTT assay showed that cancer A549 and HCT 116 cell lines were more sensitive to the action of dichloromethane extract (both IC50 values 0.7 mg mL-1). Both extracts exhibited greater toxicity to cancer than to normal MRC-5 cells, as well as selective antimicrobial effect against L. monocytogenes and C. albicans. The results of bioactivity testing of chemically characterized A. millefolium extracts represent good basis for further investigations of this crop with the aim of widening its industrial application and justifying cultivation of the investigated yarrow population.

Staphylococcus aureus is a leading cause of persistent infections which are difficult to treat due to its biofilm formation capability and increased resistance to available drugs. Our previous research showed the high antibiofilm potential of the ethyl-acetate extract of Frangula alnus and its main component emodin against S. aureus so this study was conducted to elucidate the mechanism behind the observed activity. The main goal of this research was to examine the inhibitory effect of F. alnus ethyl-acetate extracts and emodin on S. aureus biofilm matrix components (exopolysaccharides and eDNA), persister cells, and the staphyloxanthin pigment. It was demonstrated that both substances significantly reduced the production of exopolysaccharides and the amount of eDNA, and decreased the number of persister cells in the studied strains and isolates. However, the effect on staphyloxanthin production was less pronounced, with emodin being more effective. Based on the obtained results, it could be concluded that both the ethylacetate extract of F. alnus and emodin are good candidates for novel antibiofilm agents acting on S. aureus biofilm at different levels.

Background/Objectives: Acinetobacter baumannii, one of the most dangerous pathogens, is able to form biofilm structures and aggravate its treatment. For that reason, new antibiofilm agents are in need, and new sources of antibiofilm compounds are being sought from plants and their products. Cinnamon essential oil is associated with a wide spectrum of biological activities, but with a further improvement of its physicochemical properties it could provide even better bioavailability. The aim of this work was the evaluation of the antibiofilm properties of cinnamon essential oil and its emulsion. Methods: In order to evaluate the antibiofilm activity, crystal violet assay was performed to determine biofilm biomass. The main components of the biofilm matrix were measured as well as the motile capacity of the tested strains. Gene expression was monitored with RT-qPCR, while treated biofilms were observed with Raman spectroscopy. Results: A particularly strong potential against pre-formed biofilm with a decreased biomass of up to 66% was found. The effect was monitored not only with regard to the whole biofilm biomass, but also on the individual components of the biofilm matrix such as exopolysaccharides, proteins, and eDNA molecules. Protein share drops in treated biofilms demonstrated the most consistency among strains and rose to 75%. The changes in strain motility and gene expressions were investigated after the treatments were carried out. Raman spectroscopy revealed the influence of the studied compounds on chemical bond types and the components present in the biofilm matrix of the tested strains. Conclusions: The results obtained from this research are promising regarding cinnamon essential oil and its emulsion as potential antibiofilm agents, so further investigation of their activity is encouraged for their potential use in biomedical applications.

In this work, we synthesized a new composite material comprised of previously formulated resveratrol nanobelt-like particles (ResNPs) and selenium nanoparticles (SeNPs), namely ResSeNPs. Characterization was provided by FESEM and optical microscopy, as well as by UV-Vis and FTIR spectroscopy, the last showing hydrogen bonds between ResNPs and SeNPs. DPPH, TBA, and FRAP assays showed excellent antioxidative abilities with ResNPs and SeNPs contributing mainly to lipid peroxidation inhibition and reducing/scavenging activity, respectively. The antibacterial effect against common medicinal implant colonizers pointed to notably higher activity against Staphylococcus isolates (minimal inhibitory concentrations 0.75–1.5%) compared to tested gram-negative species (Escherichia coli and Pseudomonas aeruginosa). Antibiofilm activity against S. aureus, S. epidermidis, and P. aeruginosa determined in a crystal violet assay was promising (up to 69%), but monitoring of selected biofilm-related gene expression (pelA and algD) indicated the necessity of the involvement of a larger number of genes in the analysis in order to further establish the underlying mechanism. Although biocompatibility screening showed some cytotoxicity and genotoxicity in MTT and alkaline comet assays, respectively, it is important to note that active antioxidative and antibacterial/antibiofilm concentrations were non-cytotoxic and non-genotoxic in normal MRC-5 cells. These results encourage further composite improvements and investigation in order to adapt it for specific biomedical purposes.

Although numerous studies have demonstrated the biomedical potential of Myrtus communisL., (Myrtaceae) data on myrtle from Montenegro are scarce. To evaluate antioxidant, antimutagenic and antibacterial activity of myrtle methanolic extracts. Antioxidant activity was evaluated by measuring free radicals scavenging activity, reducing power and enzyme inhibition. The strongest scavenging activity was towards DPPH radical (2,2-diphenyl-1-picrylhydrazyl) (IC501.69-2.25 mg/mL) and superoxide anion (IC500.56 to 0.88 mg/mL), followed by high reducing power (428-472 mgAA/g.DE) and inhibition of XOD (IC500.308-0.6261mg/mL). Antimutagenic activity was evaluated in reverse mutation assays with Escherichia coliWP2 oxyR mutant IC202 and deficient in the induction of antioxidant enzymes. The myrtle extracts strongly inhibited mutagenesis induced by t-BOOH, reaching 70% at the highest concentration applied. Antimicrobial activity was examined on eight different bacterial strains. Gram-positive bacteria, S. epidermis, S. aureusand M. flavus demonstrated the highest sensitivity towards extracts (MICs 4.5-9 mg/mL), but significantly lower towards essential oil (MIC 0.42-3.32 mg/mL).

Genotoxicity refers to the ability of various agents, called genotoxins, to induce damage to genetic material. Given their involvement in various human diseases, exploring new protective compounds from natural sources, especially plants, is of crucial importance today. With that in mind, our study evaluated the potential antigenotoxic effect of methanolic and dichloromethane extracts of traditionally used plant Achillea millefolium on normal fetal fibroblasts (MRC-5). The screening of cytotoxicity was conducted using an MTT assay to determine non-cytotoxic concentrations of extracts on MRC-5 cells. Genotoxicity and antigenotoxicity were assessed using an alkaline comet assay. Non-genotoxic concentrations were determined for antigenotoxicity testing, which showed that extract AmDC and lower concentrations of AmM exhibited significant protective effects. The results of this study strongly encourage further investigations of the protective properties of A. millefolium.

Ensuring the safety of food products is a major challenge, with biological and chemical spoilage as a significant risk. Since synthetic antioxidants and antimicrobials have been linked to health concerns, plants, and their secondary metabolites represent a promising alternative due to their various biological activities. Therefore, the aim of this study was to examine the polyphenol content, antioxidant, antibacterial, and antibiofilm effect of a 70% ethanolic-aqueous extract of Filipendula ulmaria. Colorimetric assays revealed significant total phenolic and flavonoid content. Antioxidant assays included DPPH, where notable scavenging activity was recorded, and ferrous ion chelating ability, which appeared to be lower. In the MIC assay, the most sensitive was S. aureus MRSA, while the highest inhibition of biofilm formation was detected for S. aureus and S. aureus MRSA. Based on its noted activity, flower extract of F. ulmaria offers a promising alternative to synthetic preservatives.

Foodborne pathogens present a serious human health problem, especially in the era of growing antimicrobial resistance. To overcome the problem, the solution was sought in plants, rich in secondary metabolites. Cinnamon essential oil (EO) is recognized as a natural product with antibacterial potential. The aim of the study was to chemically characterize EO, to determine antibacterial and antibiofilm potential against foodborne pathogens, and to estimate cytotoxicity. HPLC pointed out eugenol as the most abundant component, while microdilution assay showed moderate antibacterial activity (the highest potential against Shigella flexneri, MIC 2.5 mg/mL). CV assay indicated a noticeable antibiofilm effect (up to 84% biofilm biomass inhibition on Enterobacter cloaceae). MTT assay, applied on normal lung fibroblasts (MRC-5) and colon cancer cells (HCT 116), showed notable, dose-dependent cytotoxicity. It can be concluded that EO exhibited great antibacterial potential against foodborne pathogens.

Laboratory-isolated essential oils are commonly used in experiments regarding their utilization as natural antioxidant and antimicrobial agents. This study analyzed commercially available essential oils (Serbian-FSR and Russian-FRU) of fennel (Foeniculum vulgare Mill.) and added to the pork patties to investigate their possible role as natural antioxidant and antimicrobial agents. Chemical analysis of the samples showed significant differences in profiles caused by geographical origin and other environmental factors. The main compound in both samples was trans-Anethole, but it had a much higher content in Serbian oils. On the contrary, Russian oil had a high portion of anisaldehyde and linalool. These diversities are the main reason for thermal behavior and biological activity differences. The thermal analysis has shown that FSR had a crystalline form in the solid state, while FRU had an amorphous form. During heating, in FSR, a single-step weight loss was detected, while in FRU, a two-step weight loss was observed, indicating that, in addition to evaporation, components in FRU interacted with each other, forming lesser volatile molecules. After adding pork patties, Russian oil showed higher potency and better protective behavior than Serbian oil. Moreover, mixtures of these oils were added to the patties samples, and results showed higher potency when compared to individual oil samples. This indicated that minor compounds from both oils interacted and synergistically acted to prolong the shelf life of the meat samples. Commercial essential oils could be successfully utilized to prolong shelf life and provide additional intake of natural compounds significant for the human diet.

Background/Objectives:Persicaria hydropiper (L.) Delarbre, commonly known as water pepper, possesses multifunctional potential. Our research focuses on its complex phenolic composition, bioactivity, safety evaluation and utilization in a sustainable manner. Moreover, a survey was conducted among the Serbian population to gain insight into the attitude towards traditional wild-growing herbs (i.e., P. hydropiper), the level of familiarity with their zero-waste culture, and to assess eating behaviors. Methods: A survey was conducted with 168 participants to assess attitudes towards traditional herbs, zero-waste culture, and eating behaviors, while cytotoxicity, in vivo toxicity, chemical analysis of secondary metabolites, and probiotic viability assays were performed to evaluate the effects of the PH extract. Results: Notably, P. hydropiper extract (PH) exhibits a diverse phenolic profile, including quinic acid (3.68 ± 0.37 mg/g DW), gallic acid (1.16 ± 0.10 mg/g DW), quercetin (2.34 ± 0.70 mg/g DW) and kaempferol-3-O-glucoside (4.18 ± 0.17 mg/g DW). These bioactive compounds have been linked to anticancer effects. The tested extract demonstrated a cytotoxic effect on the human neuroblastoma cell line, opening questions for the further exploration of its mechanisms for potential therapeutic applications. Based on the toxicity assessment in the Artemia salina model, the PH could be characterized with good safety, especially for the lower concentrations (LC50 = 0.83 mg/mL, 24 h). The utilization of the spent PH material supports the viability of psychobiotic strains (up to 9.26 ± 0.54 log CFU/mL). Based on the conducted survey, 63.7% (n = 107) of respondents mainly prefer traditional instead of imported herbs. The respondents were skeptical about zero-waste edibles; 51.2% (n = 86) would not try them, and a bit more than half were not familiar with zero-waste culture (57.7%; n = 97). Only 8.3% (n = 14) followed a flexitarian diet as a dietary pattern. Conclusions: The use of underutilized traditional plants and their spent material could potentially contribute to the acceptance of a zero-waste culture in Serbia. Reinventing the use of neglected traditional plants and addressing ways for spent material valorization could contribute to the acceptance of a zero-waste strategy and encourage healthier eating behavior.

Persicaria amphibia (subfam. Polygonoideae), an aquatic macrophyte rich in di-etary polyphenolics, is used as a traditional remedy and culinary herb. Neverthe-less, P. amphibia from the Balkan region has been insufficiently studied and un-derutilized. Here, the cytotoxicity and antimicrobial properties of the previously chemically characterised ethanol extract of P. amphibia aerial parts were tested. The following methods were carried out: the MTT assay, qRT-PCR, microdilution as-say, Chromobacterium violaceum screening assay (monitoring of quorum sensing, QS) and the agar plating method (antifungal activity). The study was conducted to determine the cytotoxic effects of P. amphibia against lung cancer cells (A549) and its combination with cytostatic doxorubicin (Dox). A dose-dependent decrease in cell viability (up to 82% reduction) and additive interactions of the tested agents were noted. Both alone and combined with Dox, P. amphibia reduced the expres-sion of Nrf2 (p < 0.05). In terms of antimicrobial effects, P. amphibia exhibited an antipathogenic effect since it disrupted QS communication, which was evident through the inhibition of violacein production of C. violaceum CV025. The anti -fungal screening revealed that P. amphibia induced significant growth inhibition of Aspergillus spp. (28.23%). Based on the obtained results, further examination of the potential use of P. amphibia in modern phytotherapy and diet-derived cancer chemoprevention is encouraged.

Ultraviolet (UV) radiation can result in DNA damage, mainly through direct formation of pyrimidine dimers and generation of reactive oxygen species, which can lead to the skin disorders including cancer. In accordance with this, the use of natural antigenotoxins and/or antioxidants could contribute to human health protection. Considering that plants are rich in both, the aim of this study was to investigate UV-protective and antioxidative properties of yellow gentian (Gentiana lutea), being well established in pharmacopeias and traditional medicine. Tested extracts were derived from root and shoot of the in vitro cultivated plants. Prescreening of the genotoxic properties of UVC, UVA, and the extracts, as well as the extracts' antigenotoxicity were estimated by applying alkaline comet assay on normal fetal lung fibroblast (MRC-5) and human melanoma cells (Hs 294T). Antioxidant potential was tested in ferrous ions chelating ferric reducing antioxidant power and cupric reducing antioxidant capacity assays. Genotoxicity testing, which revealed moderate DNA-damaging potential of root extract on MRC-5 cells and high genotoxicity of shoot extract on both cell lines, pointed out nongenotoxic concentrations that could be used in antigenotoxicity assay. Doses of 63 and 3 J/cm2 for UVC and UVA, respectively, were established for antigenotoxicity study, since they induced sufficient DNA damage without notable cytotoxicity. Results of antigenotoxicity revealed strong protective effect of both extracts against UVC (the highest inhibitions 58% and 47%) and UVA (the highest inhibitions 69% and 60%), in Hs 294T and MRC-5 cells, respectively. Study of the antioxidative properties demonstrated stronger activity of shoot extract. Results obtained proved to be encouraging but further research of the UV-protective role of Gentiana lutea extracts and underlying molecular mechanisms is recommended.

To the best of the author’s knowledge, so far, the utilization of industrial solid Ganoderma lucidum waste was not investigated as a potential source of remaining valuable bioactive compounds. The aim of our study was to chemically characterize the extract prepared with 96

Fermented foods containing psychobiotics are of growing interest among food scientists. Human-derived Limosilactobacillus reuteri DSM 17938, a gut symbiont and potential psychobiotic strain, has been shown to exhibit the following health benefits: anti-inflammation and GABA-production capacity, as well as modulation of pathogen and cancer cell growth. The aim of this research was to develop an acid-coagulated fresh soft quark-type cheese, fermented with L. reuteri DSM 17938, with enhanced bioactivity, sensory acceptability, and overall likeability. Psychobiotic-containing cheeses represent the food of a new generation, so it is of great importance to gain the trust of the consumers. To develop a familiar taste, cheese samples were enriched with mushroom powders of Agaricus bisporus and Pleurotus ostreatus. A high abundance of lactic acid bacteria was maintained in all cheese samples (>log 7.64 CFU/mL), while cheese extracts exhibited cytotoxicity to colon cancer cell line HCT116 (up to 30.96%) in vitro. Additionally, cheese samples provided a favorable medium for the growth of the probiotic Escherichia coli Nissle 1917 (>log 7.11 CFU/mL). Sensory evaluation revealed high scores for all samples (up to 97.21% of maximum overall quality). The survey conducted in this study offered insights into consumer willingness to try products containing psychobiotics. This study demonstrates the potential for the successful development of fermented food products with L. reuteri DSM 17938, which exhibits all the desired traits that consumers may receive well. Further research is required to explore the potential health benefits of these innovative food products.

Among numerous types of cancer, hepatocellular and colorectal carcinoma are important causes of mortality. Given the nature of these cancer types and their resistance, it is of great importance to find new chemotherapeutics and therapy targets, so plant products seem to be an excellent choice in such search. The main goal of this study was to investigate anticancer activity of Frangula alnus ethyl-acetate extract (FA) and its dominant constituent emodin (E) on hepatocellular and colorectal carcinoma cell lines, HepG2 and HCT116, as well as on normal MRC-5 fibroblasts. Cytotoxicity was investigated in MTT test and both FA and E showed strong reduction of cell viability in cancer cells. Flow cytometer analysis demonstrated that FA and E led to G1 phase arrest and slight accumulation of cells in the G2/M phase; additionally, annexinV-FITC/7AAD dying showed that FA and E decreased cell viability and triggered apoptosis in all cell lines. FA and E evidenced strong genotoxic potential in comet assay performed on all cell lines, while tests measuring antioxidative potential (DPPH and TBA) demonstrated strong effect of FA. It could be concluded that both FA and E have significant anticancer activity against hepatocellular and colorectal carcinoma cell lines HepG2 and HCT116, but notable selectivity was not observed.

As a foodborne pathogen, Listeria monocytogenes could be commonly found in the food processing facilities, where forms biofilm on various food contact surfaces. Therefore, the control of L. monocytogenes biofilm formation is of key importance for improving food safety. The aim of this work was to examine the ability of yellow gentian root and leaf extracts to inhibit biofilm formation of L. monocytogenes strains at commonly used 37 degrees C and at ambient temperature associated with food processing plants (18 degrees C), on both polystyrene and stainless steel. Crystal violet staining assay revealed strong potential of the extracts to prevent biofilm formation on polystyrene at 37 degrees C (up to 90% inhibition), and on both surfaces at 18 degrees C (up to 78.1% and 62.9% on polystyrene and stainless steel, respectively). Antibiofilm effect could be ascribed to extracts' ability to reduce the production of exopolysaccharides and to suppress swimming motility. Finally, qRT-PCR demonstrated no activity against quorum sensing, but up-regulation of the genes (flaA, sigB) involved in biofilm formation, most likely as a response to stressful conditions. Results obtained suggest yellow gentian extracts as potent antibiofilm agents, but further analyses are needed to determine the underlie mechanism and to validate the efficiency and safety in commercial environment.

Recently, many studies have shown various beneficial effects of polyphenol resveratrol (Res) on human health. The most important of these effects include cardioprotective, neuroprotective, anti-cancer, anti-inflammatory, osteoinductive, and anti-microbial effects. Resveratrol has cis and trans isoforms, with the trans isoform being more stable and biologically active. Despite the results of in vitro experiments, resveratrol has limited potential for application in vivo due to its poor water solubility, sensitivity to oxygen, light, and heat, rapid metabolism, and therefore low bioavailability. The possible solution to overcome these limitations could be the synthesis of resveratrol in nanoparticle form. Accordingly, in this study, we have developed a simple, green solvent/non-solvent physicochemical method to synthesize stable, uniform, carrier-free resveratrol nanobelt-like particles (ResNPs) for applications in tissue engineering. UV–visible spectroscopy (UV-Vis) was used to identify the trans isoform of ResNPs which remained stable for at least 63 days. The additional qualitative analysis was performed by Fourier transform infrared spectroscopy (FTIR), while X-ray diffraction (XRD) determined the monoclinic structure of resveratrol with a significant difference in the intensity of diffraction peaks between commercial and nano-belt form. The morphology of ResNPs was evaluated by optical microscopy and field-emission scanning electron microscope (FE-SEM) that revealed a uniform nanobelt-like structure with an individual thickness of less than 1 μm. Bioactivity was confirmed using Artemia salina in vivo toxicity assay, while 2,2–diphenyl-1-picrylhydrazylhydrate (DPPH) reduction assay showed the good antioxidative potential of concentrations of 100 μg/ml and lower. Microdilution assay on several reference strains and clinical isolates showed promising antibacterial potential on Staphylococci, with minimal inhibitory concentration (MIC) being 800 μg/ml. Bioactive glass-based scaffolds were coated with ResNPs and characterized to confirm coating potential. All of the above make these particles a promising bioactive, easy-to-handle component in various biomaterial formulations.