Natural nanofibers embedded in the seed mucilage envelope: composite hydrogels with specific adhesive and frictional properties

• Agnieszka Kreitschitz and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2024, 15, 1603–1618, doi:10.3762/bjnano.15.126

• encapsulation of medical substances. A very important advantage of diaspore mucilages are their antimicrobial properties [105][106][110][111]. Phenolic compounds are secondary plant metabolites, which demonstrate a wide range of structures, from simple molecules to polymeric compounds. They can be produced in

• diverse plant organs, such as seeds, fruits, flowers, and leaves, and are involved in the defence of the plant against herbivore animals, fungi, and viruses [112][113]. Phenolic compounds are very abundant substances in seeds, playing an important role in their development and maturation. They are

• phenolic molecules, which are concentrated on the mucilage surface, can be maximised [98]. Thus, we assume that increased concentration of phenolic compounds at the mucilage interface has an important antimicrobial function for the seed. The mucilage envelope supports the germination through speeding it up

Green synthesis of silver nanoparticles derived from algae and their larvicidal properties to control Aedes aegypti

• Matheus Alves Siqueira de Assunção,
• Douglas Dourado,
• Daiane Rodrigues dos Santos,
• Gabriel Bezerra Faierstein,
• Mara Elga Medeiros Braga,
• Severino Alves Junior,
• Rosângela Maria Rodrigues Barbosa,
• Herminio José Cipriano de Sousa and
• Fábio Rocha Formiga

Beilstein J. Nanotechnol. 2024, 15, 1566–1575, doi:10.3762/bjnano.15.123

• temperature until the color changed to brown, indicative of the formation of AgNPs. Chemical analysis of the AgNPs demonstrated the presence of alcoholic compounds, phenolic compounds, aliphatic compounds, and carbonyl groups. Green algae were also used to obtain AgNPs. Aziz et al., synthesized AgNPs from U

• by mixing 10 mL of the extract supernatant with 90 mL of AgNO3 solution (1 mM) at a temperature of 37 °C, until a color change from colorless to reddish brown was observed. The chemical analysis of AgNPs demonstrated the presence of phenolic compounds, ether groups, and polysaccharides. Also, blue

• compounds are involved in the reduction of AgNO3 and the stabilization of AgNPs. Chemical analysis of AgNPs demonstrated the presence of alcohols, phenols, alkynes, aromatic compounds, long-chain fatty acids, secondary amides, and terpenoids. The predominance of phenolic compounds was evident in all species

Classification and application of metal-based nanoantioxidants in medicine and healthcare

• Nguyen Nhat Nam,
• Nguyen Khoi Song Tran,
• Tan Tai Nguyen,
• Nguyen Ngoc Trai,
• Nguyen Phuong Thuy,
• Hoang Dang Khoa Do,
• Nhu Hoa Thi Tran and
• Kieu The Loan Trinh

Beilstein J. Nanotechnol. 2024, 15, 396–415, doi:10.3762/bjnano.15.36

• reactions. In other words, ROS tend to react with chain-breaking antioxidants more rapidly than with the substrate [8][49]. Phenolic compounds are among the most effective chain-breaking antioxidants that appear in nature and can also be synthesized. For example, α-tocopherol (vitamin E) is a chain-breaking

Vinorelbine-loaded multifunctional magnetic nanoparticles as anticancer drug delivery systems: synthesis, characterization, and in vitro release study

• Zeynep Özcan and
• Afife Binnaz Hazar Yoruç

Beilstein J. Nanotechnol. 2024, 15, 256–269, doi:10.3762/bjnano.15.24

• 587 and 1620 cm−1 are indicative of Fe3O4 NPs. These results are in line with a study by Xue and co-workers [45]. The broad absorption bands in the 1700–1000 cm−1 range suggest the presence of aromatic rings and phenolic compounds in PDA. These bands demonstrate the effective coating with PDA, as

Curcumin-loaded nanostructured systems for treatment of leishmaniasis: a review

• Douglas Dourado,
• Thayse Silva Medeiros,
• Éverton do Nascimento Alencar,
• Edijane Matos Sales and
• Fábio Rocha Formiga

Beilstein J. Nanotechnol. 2024, 15, 37–50, doi:10.3762/bjnano.15.4

• ) with sizes ≈100 nm by green synthesis using extracts of Ficus carica Linn and Olea europaea L., which are rich in phenolic compounds. The authors also evaluated the antileishmanial potential of the nanosystems regarding concurrent treatment or pretreatment against Leishmania major cutaneous infection

In search of cytotoxic selectivity on cancer cells with biogenically synthesized Ag/AgCl nanoparticles

• Mitzi J. Ramírez-Hernández,
• Mario Valera-Zaragoza,
• Omar Viñas-Bravo,
• Ariana A. Huerta-Heredia,
• Miguel A. Peña-Rico,
• Erick A. Juarez-Arellano,
• David Paniagua-Vega,
• Eduardo Ramírez-Vargas and
• Saúl Sánchez-Valdes

Beilstein J. Nanotechnol. 2022, 13, 1505–1519, doi:10.3762/bjnano.13.124

• a dose-dependent manner. Based on the aforementioned findings, and considering the high content of phenolic compounds in the pineapple peel, which function as reducing agents of silver salt, the present study shows biosynthesis of Ag/AgCl nanoparticles using a pineapple peel extract. The study was

• alternative materials for therapeutic applications, especially those that mitigate diseases. Results and Discussion Ag/AgCl biosynthesis It has been reported in the literature that pineapple contains several phenolic compounds [14][19], which could act as reducing agents of silver salt. For this reason, the

• amount of phenolic compounds in the pineapple peel extract was quantified. The total phenolic content (TPC) in the pineapple peel extract was 24.66 ± 1.03 mg Catechin/g Ext, and the total flavonoid content (TFC) was 0.62 ± 0.21 mg Rutin/g Ext. The extract has a higher phenolic content in comparison to

Ethosomal (−)-epigallocatechin-3-gallate as a novel approach to enhance antioxidant, anti-collagenase and anti-elastase effects

• Çiğdem Yücel,
• Gökçe Şeker Karatoprak,
• Sena Yalçıntaş and
• Tuğba Eren Böncü

Beilstein J. Nanotechnol. 2022, 13, 491–502, doi:10.3762/bjnano.13.41

• human cancer cells without causing toxicity problems in normal cells. In general, it has been confirmed that they are relatively nontoxic in healthy L929 cells but toxic in cancer cell lines [29]. Preparation and characterization of formulations Like many phenolic compounds, EGCG is not sufficiently

Tin dioxide nanomaterial-based photocatalysts for nitrogen oxide oxidation: a review

• Viet Van Pham,
• Hong-Huy Tran,
• Thao Kim Truong and
• Thi Minh Cao

Beilstein J. Nanotechnol. 2022, 13, 96–113, doi:10.3762/bjnano.13.7

• catalytic area, SnO2 is an emerging material for removing contaminants such as organic dyes, phenolic compounds, and volatile organic compounds (VOCs) due to strongly oxidizing properties thanks to flexible energy band structure, rich defects, good chemical, and high thermal stability, and easily controlled

Use of nanosystems to improve the anticancer effects of curcumin

• Andrea M. Araya-Sibaja,
• Norma J. Salazar-López,
• Krissia Wilhelm Romero,
• José R. Vega-Baudrit,
• J. Abraham Domínguez-Avila,
• Carlos A. Velázquez Contreras,
• Ramón E. Robles-Zepeda,
• Mirtha Navarro-Hoyos and
• Gustavo A. González-Aguilar

Beilstein J. Nanotechnol. 2021, 12, 1047–1062, doi:10.3762/bjnano.12.78

• materials for nanomedical applications. Imaging-guided drug delivery of CUR-based nanosystems may also directly target specific cells, thereby increasing the therapeutic and chemopreventive efficacy of this versatile compound. Keywords: nanocarrier; nanoformulations; nanosized delivery systems; phenolic

• compounds; Introduction According to the International Agency for Research on Cancer, approximately 9.5 million people worldwide die annually from malignant neoplasms [1]. Deaths are primarily due to cancer of the respiratory system (17%), liver (10%), colon and rectum (8%), breast (8%), and stomach (8

A review on the green and sustainable synthesis of silver nanoparticles and one-dimensional silver nanostructures

• Sina Kaabipour and
• Shohreh Hemmati

Beilstein J. Nanotechnol. 2021, 12, 102–136, doi:10.3762/bjnano.12.9

• characteristics, AgNPs synthesized by plants and plant extracts are ideal for biomedical applications [304]. Plant extracts contain phenolic compounds such as flavonoids and alkaloids which are soluble in water [305]. These compounds provide the reagent with unique reducing and capping characteristics [306]. This

Scavenging of reactive oxygen species by phenolic compound-modified maghemite nanoparticles

• Małgorzata Świętek,
• Yi-Chin Lu,
• Rafał Konefał,
• Liliana P. Ferreira,
• M. Margarida Cruz,
• Yunn-Hwa Ma and
• Daniel Horák

Beilstein J. Nanotechnol. 2019, 10, 1073–1088, doi:10.3762/bjnano.10.108

• Abstract Maghemite (γ-Fe2O3) nanoparticles obtained through co-precipitation and oxidation were coated with heparin (Hep) to yield γ-Fe2O3@Hep, and subsequently with chitosan that was modified with different phenolic compounds, including gallic acid (CS-G), hydroquinone (CS-H), and phloroglucinol (CS-P

• catalyzed by metal-ion cofactors, such as iron, copper, zinc, and manganese [3]. The non-enzymatic antioxidant defense uses glutathione, vitamins C and E, melatonin, catecholamines, and substances of plant origin, such as phenols and carotenoids, to interrupt undesirable ROS action. Phenolic compounds are

• found in tea, coffee, chocolate, cacao, thyme, berries, spinach, and many other food sources [4]. The efficacy of ROS inactivation by phenolic compounds mainly depends on their chemical structure. The simplest phenolic compound, phenol, contains only one benzene ring and one hydroxy group, whereas

Electrodeposition of reduced graphene oxide with chitosan based on the coordination deposition method

• Mingyang Liu,
• Yanjun Chen,
• Chaoran Qin,
• Zheng Zhang,
• Shuai Ma,
• Xiuru Cai,
• Xueqian Li and
• Yifeng Wang

Beilstein J. Nanotechnol. 2018, 9, 1200–1210, doi:10.3762/bjnano.9.111

• electrochemical detection of glucose, NH3 gas, NO2 gas, ethanol and acetone [40][41][42][43]. Besides, graphene-based sensors have been used to detect phenolic compounds which are aromatic pollutants to the environment and human health [44][45]. These graphene-based sensors exhibit the high detection performance

• for phenolic compounds owing to the special advantages of graphene such as its excellent electronic properties, large surface area, and high adsorption capability for phenolic compounds [44][45]. As a proof-of-concept experiment, the electrochemical detection capability of the deposited HACC-rGO/CS

Photocatalysis applications of some hybrid polymeric composites incorporating TiO₂ nanoparticles and their combinations with SiO₂/Fe₂O₃

• Andreea Laura Chibac,
• Tinca Buruiana,
• Violeta Melinte and
• Emil C. Buruiana

Beilstein J. Nanotechnol. 2017, 8, 272–286, doi:10.3762/bjnano.8.30

• degrading hydroxybenzene derivatives under UV and visible light, was investigated using hybrid films in aqueous solutions. The motivation for this selection is that the phenolic compounds play a major role among the various organic pollutants that cause environmental hazard, being a part of the widely used

Voltammetric determination of polyphenolic content in pomegranate juice using a poly(gallic acid)/multiwalled carbon nanotube modified electrode

• Refat Abdel-Hamid and
• Emad F. Newair

Beilstein J. Nanotechnol. 2016, 7, 1104–1112, doi:10.3762/bjnano.7.103

• , pomegranate juice has attracted more scientific attention because of its valuable health effects; especially due to its high content of phenolic compounds [17]. It is a complex drink and a rich source of antioxidants such as phenolic acids, tannins, anthocyanins, procyanidins, and flavonol glycosides [18

Green and energy-efficient methods for the production of metallic nanoparticles

• Mitra Naghdi,
• Mehrdad Taheran,
• Satinder K. Brar,
• M. Verma,
• R. Y. Surampalli and
• J. R. Valero

Beilstein J. Nanotechnol. 2015, 6, 2354–2376, doi:10.3762/bjnano.6.243

• Ag ions during process [66]. Kumar et al. used amino acid based phenolic compounds as reducer and stabilizer for production of Ag NPs from AgNO3 at room temperature. They stated that amino acids have reactive hydroxyl groups and their structural variations can result in the production of spherical

• Ficus benghalensis as reducing and stabilizing agent and for production of Ag NPs in 5 min at 50–60 °C. Their analysis showed that phenolic compounds with hydroxyl and ketonic groups are responsible for reduction of Ag ions. The synthesized particles were monodispersed and spherical with a diameter

Electrochemical behavior of polypyrrol/AuNP composites deposited by different electrochemical methods: sensing properties towards catechol

• Celia García-Hernández,
• Cristina García-Cabezón,
• Cristina Medina-Plaza,
• Fernando Martín-Pedrosa,
• Yolanda Blanco,
• José Antonio de Saja and
• María Luz Rodríguez-Méndez

Beilstein J. Nanotechnol. 2015, 6, 2052–2061, doi:10.3762/bjnano.6.209

• detection of phenolic compounds, which are strong antioxidant reagents present in foods, with beneficial effects on human health [23]. As phenols are electroactive compounds, they can be detected by amperometric or voltammetric techniques using graphite or platinum electrodes [24][25][26]. In addition

DFT study of binding and electron transfer from colorless aromatic pollutants to a TiO₂ nanocluster: Application to photocatalytic degradation under visible light irradiation

• Corneliu I. Oprea,
• Petre Panait and
• Mihai A. Gîrţu

Beilstein J. Nanotechnol. 2014, 5, 1016–1030, doi:10.3762/bjnano.5.115

• ][10]. The assumption of a surface CTC in the visible light catalysis was supported by subsequent work on various other types of systems, such as phenolic compounds [11][12], fluoroquinolone antibacterial agents [13], and various colorless aromatic pollutants [14]. Despite the extensive experimental

A catechol biosensor based on electrospun carbon nanofibers

• Dawei Li,
• Zengyuan Pang,
• Xiaodong Chen,
• Lei Luo,
• Yibing Cai and
• Qufu Wei

Beilstein J. Nanotechnol. 2014, 5, 346–354, doi:10.3762/bjnano.5.39

• electrocatalytic properties. However, it is rarely reported that ECNFs were utilized directly in the design of enzyme-based biosensors. Phenolic compounds, which widely occur in processes of agriculture and industry, often cause severe health problems in human beings and animals [28]. So it is important to develop

• fast and effective methods to detect phenolic compounds. Laccase (benzendiol:oxygen oxidoreductases; EC 1.10.3.2), a multicopper oxidase widely distributed in plant and fungal species, can reduce oxygen directly to water through a four-electron transfer step, and this chemical reaction does not produce

• hydrogen peroxide (H2O2) [29]. Based on this, laccase has been utilized to fabricate a variety of biosensors, including biosensors for phenolic compounds [30]. Nafion, a linear perfluorosulfonate polymer possesses good cation-exchange properties, biocompatibility and film-forming properties and has been