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Search for "dye" in Full Text gives 332 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

The round-robin approach applied to nanoinformatics: consensus prediction of nanomaterials zeta potential

  • Dimitra-Danai Varsou,
  • Arkaprava Banerjee,
  • Joyita Roy,
  • Kunal Roy,
  • Giannis Savvas,
  • Haralambos Sarimveis,
  • Ewelina Wyrzykowska,
  • Mateusz Balicki,
  • Tomasz Puzyn,
  • Georgia Melagraki,
  • Iseult Lynch and
  • Antreas Afantitis

Beilstein J. Nanotechnol. 2024, 15, 1536–1553, doi:10.3762/bjnano.15.121

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  • -across and QSPR, has been recently introduced and applied to the prediction of NM cytotoxicity [44], power conversion efficiency of organic dyes in dye-sensitized solar cells [45][46], detonation heat for nitrogen containing compounds [47], and to the prediction of surface area of perovskite materials
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Published 29 Nov 2024

Lithium niobate on insulator: an emerging nanophotonic crystal for optimized light control

  • Midhun Murali,
  • Amit Banerjee and
  • Tanmoy Basu

Beilstein J. Nanotechnol. 2024, 15, 1415–1426, doi:10.3762/bjnano.15.114

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  • challenging due to its ultrafast nature. In 2022, Quach et al. presented an innovative model of a quantum battery [37]. This device comprises a DBR structure-based microcavity that encloses an organic semiconductor molecular dye, named Lumogen-Forange (LFO). The DBRs comprised 10 bilayers of SiO2/Nb2O5 in the
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Published 14 Nov 2024

Various CVD-grown ZnO nanostructures for nanodevices and interdisciplinary applications

  • The-Long Phan,
  • Le Viet Cuong,
  • Vu Dinh Lam and
  • Ngoc Toan Dang

Beilstein J. Nanotechnol. 2024, 15, 1390–1399, doi:10.3762/bjnano.15.112

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  • ], radio-frequency magnetron sputtering [47], pulsed laser ablation [48], and electrodeposition methods [49]. They have many application potentials in dye-sensitized solar cells [46], self-powered energy-harvesting devices [47], photocatalysts [48], and turbid lenses [50]. It has been suggested that the
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Published 11 Nov 2024

Nanoarchitectonics with cetrimonium bromide on metal nanoparticles for linker-free detection of toxic metal ions and catalytic degradation of 4-nitrophenol

  • Akash Kumar and
  • Raja Gopal Rayavarapu

Beilstein J. Nanotechnol. 2024, 15, 1312–1332, doi:10.3762/bjnano.15.106

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  • [15]. Besides heavy metals, 4-nitrophenol is widely used for dye synthesis, insecticides and pesticides, indicators, and photographic chemicals [16]. Regarding the use of 4-nitrophenol, there are several toxicity concerns via different exposure routes, including dermal, oral, and inhalation [17
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Published 04 Nov 2024

Dual-functionalized architecture enables stable and tumor cell-specific SiO2NPs in complex biological fluids

  • Iris Renata Sousa Ribeiro,
  • Raquel Frenedoso da Silva,
  • Romênia Ramos Domingues,
  • Adriana Franco Paes Leme and
  • Mateus Borba Cardoso

Beilstein J. Nanotechnol. 2024, 15, 1238–1252, doi:10.3762/bjnano.15.100

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  • , resistivity of 18.2 MΩ·cm–1). Synthesis of rhodamine-labeled SiO2NPs (SiO2NPs) The synthesis of rhodamine-labeled SiO2NPs was similar to the protocol proposed by the group [27]. The dye precursor was synthesized by conjugation of the isothiocyanate group of rhodamine B isothiocyanate to APTES at a molar ratio
  • of 50:1 (dye: APTES) in absolute ethanol under nitrogen. The resulting solution was continuously stirred for 24 h. The conjugate was then hydrolyzed in a basic ethanolic solution with TEOS and catalyzed by ammonia. In summary, the dye precursor (0.1 mL) was added to ethanol (120.0 mL), TEOS (2.0 mL
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Published 07 Oct 2024

Enhanced catalytic reduction through in situ synthesized gold nanoparticles embedded in glucosamine/alginate nanocomposites

  • Chi-Hien Dang,
  • Le-Kim-Thuy Nguyen,
  • Minh-Trong Tran,
  • Van-Dung Le,
  • Nguyen Minh Ty,
  • T. Ngoc Han Pham,
  • Hieu Vu-Quang,
  • Tran Thi Kim Chi,
  • Tran Thi Huong Giang,
  • Nguyen Thi Thanh Tu and
  • Thanh-Danh Nguyen

Beilstein J. Nanotechnol. 2024, 15, 1227–1237, doi:10.3762/bjnano.15.99

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  • of dyes, such as 4-nitrophenol (4-NiP) to harmless 4-aminophenol, a precursor for the synthesis of drugs like paracetamol and phenacetin, shows promise for producing dyes, cosmetics, and pharmaceuticals [27]. Plasmonic MNPs enhance catalytic performance by absorbing both dye molecules and BH4− ions
  • , offering a potent solution for dye remediation [28]. In our ongoing research, we synthesized for the first time AuNPs using GluN molecules, serving as both interaction agents to cross-link Ca-Alg gelispheres and reducing agents, thereby providing a novel material for the stabilization of AuNPs. The
  • , respectively. The rate constant was derived from the slope of the plots of ln(Ct/C0) as function of the reaction time [29][30][31]. To assess the reusability of AuNPs@GluN/Alg, we carried out the dye reduction process re-using the nanocomposite. Following each run, the nanocomposite was recovered from the
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Published 04 Oct 2024

Realizing active targeting in cancer nanomedicine with ultrasmall nanoparticles

  • André F. Lima,
  • Giselle Z. Justo and
  • Alioscka A. Sousa

Beilstein J. Nanotechnol. 2024, 15, 1208–1226, doi:10.3762/bjnano.15.98

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  • radiotherapy and delaying tumor growth (Figure 4C–E). Chen et al. designed dye-labeled (Cy5) and radioiodinated (124I or 131I) C’ dots for dual-modality NIR optical and positron emission tomography (PET) tumor imaging. Furthermore, the particles contained the cRGDY peptide for the targeting of αvβ3-positive
  • -infrared (NIR) dye MPA. Tumor-bearing mice were employed to assess the tumor specificity of AuNC-MPA, AuNC-MPA-cRGD, and AuNC-MPA-cRGD-AS1411 using in vivo NIR fluorescence imaging. Both targeted AuNCs accumulated in the tumor, while the control AuNC-MPA showed negligible accumulation. However, the
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Review
Published 30 Sep 2024

Unveiling the potential of alginate-based nanomaterials in sensing technology and smart delivery applications

  • Shakhzodjon Uzokboev,
  • Khojimukhammad Akhmadbekov,
  • Ra’no Nuritdinova,
  • Salah M. Tawfik and
  • Yong-Ill Lee

Beilstein J. Nanotechnol. 2024, 15, 1077–1104, doi:10.3762/bjnano.15.88

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Published 22 Aug 2024

Effect of wavelength and liquid on formation of Ag, Au, Ag/Au nanoparticles via picosecond laser ablation and SERS-based detection of DMMP

  • Sree Satya Bharati Moram,
  • Chandu Byram and
  • Venugopal Rao Soma

Beilstein J. Nanotechnol. 2024, 15, 1054–1069, doi:10.3762/bjnano.15.86

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  • substrates is the central aspect of the sensing field because of its simple sample collection from any rough surface [36][40]. Filter paper (FP) SERS substrates are rigorously investigated for the detection of hazardous dye molecules such as crystal violet (CV) and malachite green (MG) on fish [41
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Published 19 Aug 2024

Therapeutic effect of F127-folate@PLGA/CHL/IR780 nanoparticles on folate receptor-expressing cancer cells

  • Thi Ngoc Han Pham,
  • Phuong-Thao Dang-Luong,
  • Hong-Phuc Nguyen,
  • Loc Le-Tuan,
  • Xuan Thang Cao,
  • Thanh-Danh Nguyen,
  • Vy Tran Anh and
  • Hieu Vu_Quang

Beilstein J. Nanotechnol. 2024, 15, 954–964, doi:10.3762/bjnano.15.78

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  • fluorescent dye used to visualize particle location using infrared light [25]. Researchers have also found that F127-folate helps the nanoparticle to penetrate cancer cells through the folate receptor. This makes the treatment work better [12][13][14][34][35][36][37]. Our nanoparticles were also modified with
  • and treatment. The term is not new to nanoscience, but it is always preferable to create a drug carrier that serves both goals; that was also the aim of the nanoparticle design in our study. In our study, the imaging agent is the near-infrared fluorescent dye IR780, while the treatment medication is
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Published 31 Jul 2024

Intermixing of MoS2 and WS2 photocatalysts toward methylene blue photodegradation

  • Maryam Al Qaydi,
  • Nitul S. Rajput,
  • Michael Lejeune,
  • Abdellatif Bouchalkha,
  • Mimoun El Marssi,
  • Steevy Cordette,
  • Chaouki Kasmi and
  • Mustapha Jouiad

Beilstein J. Nanotechnol. 2024, 15, 817–829, doi:10.3762/bjnano.15.68

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  • removal, or synthetic dye degradation [4][5][6]. For instance, methylene blue (MB), which is considered one of the most used synthetic organic dyes in various industrial and medical applications, poses serious risks as a pollutant to water resources [7]. Indeed, MB is a potential carcinogen and mutagen
  • evaluated the PD of the MB dye solution under light excitation without any photocatalysts (MB photolysis) as well as its PD in the dark in the presence of a photocatalyst. The optical absorbance spectra of the MB solution in the presence of MoS2 and WS2 were recorded in the dark and under visible light
  • model [38]. Our results show a PD rate constant of 6.1 × 10−3 min−1 and 3.3 × 10−3 min−1 achieved by WS2 and MoS2, respectively. To evaluate the cyclability of our photocatalysts, we have conducted four consecutive PD runs. After each cycle (3 h), the MB dye solution was replaced with a fresh one to
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Published 05 Jul 2024

Green synthesis of biomass-derived carbon quantum dots for photocatalytic degradation of methylene blue

  • Dalia Chávez-García,
  • Mario Guzman,
  • Viridiana Sanchez and
  • Rubén D. Cadena-Nava

Beilstein J. Nanotechnol. 2024, 15, 755–766, doi:10.3762/bjnano.15.63

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  • -conversion luminescence. The results revealed effective photocatalytic degradation of methylene blue under sunlight, highlighting the potential for scalable production of these cost-effective catalytic nanomaterials for synthetic dye degradation. Keywords: biomass; carbon dots; catalysis; methylene blue
  • quantum dots (CQDs) through a hydrothermal method using biomass from watermelon peels and grape pomace. This method is chosen for its ease of production, low cost, and scalability. We aim to evaluate the potential of CQDs as catalysts in the photocatalytic degradation of methylene blue (MB) dye in
  • value of the reaction mixture was kept constant during the test (pH 7). To initiate the catalytic process, each CQD sample was individually applied to the degradation of the MB dye. The UV–vis absorption spectrum of the dye was monitored using a spectrophotometer (Thermo Scientific Evolution model 220
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Published 25 Jun 2024

Comparative analysis of the ultrastructure and adhesive secretion pathways of different smooth attachment pads of the stick insect Medauroidea extradentata (Phasmatodea)

  • Julian Thomas,
  • Stanislav N. Gorb and
  • Thies H. Büscher

Beilstein J. Nanotechnol. 2024, 15, 612–630, doi:10.3762/bjnano.15.52

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  • metachromatic dye, which selectively stains basophilic tissue components and has a high affinity to acidic tissue (nucleic acids are stained blue and polysaccharides purple). Previous experiments have also shown that the dye stains soft parts of the cuticle dark blue, and sclerotized parts of the cuticle light
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Published 29 May 2024

Cholesterol nanoarchaeosomes for alendronate targeted delivery as an anti-endothelial dysfunction agent

  • Horacio Emanuel Jerez,
  • Yamila Roxana Simioni,
  • Kajal Ghosal,
  • Maria Jose Morilla and
  • Eder Lilia Romero

Beilstein J. Nanotechnol. 2024, 15, 517–534, doi:10.3762/bjnano.15.46

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  • metalloproteases substrate (FS-6), Sephadex G-50, lipopolysaccharides from Escherichia coli 0111:B4 (LPS), Mitochondria Staining Kit (JC-1 dye), valinomycin, sodium dodecyl sulfate (SDS), dexamethasone (DEX), ammonium persulfate, phorbol 12-myristate 13-acetate (PMA), gelatin from bovine skin type B, and BSA
  • at λem = 440 nm and λem = 490 nm, respectively. Mitochondrial membrane potential The effect of nanovesicle uptake by THP-1 macrophages and HUVECs on the mitochondrial membrane potential was determined using JC-1 dye according to the manufacturer’s guidelines [84]. Briefly, THP-1 macrophages and
  • carried out at 450 nm on a microplate reader. The generation of ROSs was measured in THP-1 macrophages and FCs in the basolateral compartments using the CM-H2DCFDA dye. Briefly, cells attached at the bottom of the well were washed twice with 100 µL PBS and incubated with a solution of 10 µM CM-H2DCFDA for
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Published 13 May 2024

Photocatalytic degradation of methylene blue under visible light by cobalt ferrite nanoparticles/graphene quantum dots

  • Vo Chau Ngoc Anh,
  • Le Thi Thanh Nhi,
  • Le Thi Kim Dung,
  • Dang Thi Ngoc Hoa,
  • Nguyen Truong Son,
  • Nguyen Thi Thao Uyen,
  • Nguyen Ngoc Uyen Thu,
  • Le Van Thanh Son,
  • Le Trung Hieu,
  • Tran Ngoc Tuyen and
  • Dinh Quang Khieu

Beilstein J. Nanotechnol. 2024, 15, 475–489, doi:10.3762/bjnano.15.43

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  • /GQDs nanoparticles. Magnetic properties, morphology, structure, and fluorescence of the nanocomposites were studied, and the photocatalytic degradation of methylene blue as a dye model and the mechanism of methylene degradation were also addressed. Experimental Materials Cobalt(II) nitrate hexahydrate
  • 8.33 [25]. The MB dye can exist in several chemical forms, namely MBH32+ (the tri-protonated form), MBH2+ (diprotonated form), MBH (monoprotonated form), and MB− (deprotonated form) [25]. With increasing pH, the decolourisation efficiency increases, reaches its maximum at pH ca. 7, and decreases
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Published 29 Apr 2024

Nanocarrier systems loaded with IR780, iron oxide nanoparticles and chlorambucil for cancer theragnostics

  • Phuong-Thao Dang-Luong,
  • Hong-Phuc Nguyen,
  • Loc Le-Tuan,
  • Xuan-Thang Cao,
  • Vy Tran-Anh and
  • Hieu Vu Quang

Beilstein J. Nanotechnol. 2024, 15, 180–189, doi:10.3762/bjnano.15.17

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  • diagnostics, near-infrared (NIR) fluorescent dyes are a potential alternative for the diagnosis and excision of residual malignant cancer, which is invisible by conventional visual examination and palpation [16][17][18]. Indocyanine green is the only NIR dye permitted for clinical use [19]. Dyes such as IR780
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Published 06 Feb 2024

CdSe/ZnS quantum dots as a booster in the active layer of distributed ternary organic photovoltaics

  • Gabriela Lewińska,
  • Piotr Jeleń,
  • Zofia Kucia,
  • Maciej Sitarz,
  • Łukasz Walczak,
  • Bartłomiej Szafraniak,
  • Jerzy Sanetra and
  • Konstanty W. Marszalek

Beilstein J. Nanotechnol. 2024, 15, 144–156, doi:10.3762/bjnano.15.14

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  • ; organic solar cells; quantum dots; Introduction Organic solar cells have been intensively developed in recent years as the third generation [1][2] of photovoltaic cells, next to dye-synthesized solar cells and perovskite cells. One of the relatively novel concepts of organic solar cells that yield higher
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Published 02 Feb 2024

New application of bimetallic Ag/Pt nanoplates in a colorimetric biosensor for specific detection of E. coli in water

  • Azam Bagheri Pebdeni,
  • Mohammad N. AL-Baiati and
  • Morteza Hosseini

Beilstein J. Nanotechnol. 2024, 15, 95–103, doi:10.3762/bjnano.15.9

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  • nanoparticles (i.e., silver nanoplates, Ag NPLs) covered with a layer of Pt atoms to improve the peroxide activity of NPLs, and use them as colorimetric biosensor materials. Metallic NPLs were employed in a variety of applications, including antibacterial activity [17][18][19], hazardous dye removal [20
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Published 17 Jan 2024

Fluorescent bioinspired albumin/polydopamine nanoparticles and their interactions with Escherichia coli cells

  • Eloïse Equy,
  • Jordana Hirtzel,
  • Sophie Hellé,
  • Béatrice Heurtault,
  • Eric Mathieu,
  • Morgane Rabineau,
  • Vincent Ball and
  • Lydie Ploux

Beilstein J. Nanotechnol. 2023, 14, 1208–1224, doi:10.3762/bjnano.14.100

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  • with a fluorescent dye or oxidizing them, as reported by Ma et al. for other PDA NPs [21]. However, the capacity of PDA-based nanoparticles to target and penetrate bacteria for drug delivery, photothermic action, or fluorescent labelling of cells is unknown. Few publications have reported that
  • (Supporting Information File 1, Figure S3b,c), respectively, in agreement with the color of the corresponding dye. Pristine BSA/PDA-NPs exhibited a wide absorption spectrum with a maximum of absorption at 280 nm, whereas Ox-PDA/BSA-NPs showed a less broad and intense absorption with a maximum at 285 nm
  • labelled NPs by following the same procedure as described below for the elimination of unbound labelling molecules (see Experimental section). The fraction of released dye was estimated on the basis of the emission intensity of the dialysate and the initial quantity of labelled NPs (Supporting Information
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Published 22 Dec 2023

Curcumin-loaded albumin submicron particles with potential as a cancer therapy: an in vitro study

  • Nittiya Suwannasom,
  • Netsai Sriaksorn,
  • Chutamas Thepmalee,
  • Krissana Khoothiam,
  • Ausanai Prapan,
  • Hans Bäumler and
  • Chonthida Thephinlap

Beilstein J. Nanotechnol. 2023, 14, 1127–1140, doi:10.3762/bjnano.14.93

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  • the tetrazolium dye MTT to water-insoluble purple formazan crystals, indicating mitochondrial function and metabolically active cells. After medium removal, the dark blue crystals were dissolved in 100 μL of DMSO; then, the absorption was measured at wavelengths of 570 nm with a Cytation™ 5 Cell
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Published 21 Nov 2023

Nanoarchitectonics of photothermal materials to enhance the sensitivity of lateral flow assays

  • Elangovan Sarathkumar,
  • Rajasekharan S. Anjana and
  • Ramapurath S. Jayasree

Beilstein J. Nanotechnol. 2023, 14, 988–1003, doi:10.3762/bjnano.14.82

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  • reduced graphene oxide (rGO), SERS imaging can be done along with photothermal therapy [84]. Recently, our group developed a multifunctional rGO–Au nanoscale architecture loaded with Raman dye and anticancer drugs for fluorescence/SERS imaging-guided breast cancer therapy. Under activation of a laser at
  • . developed a multifunctional Au@Pt@Ag nanocomposite loaded with the Raman dye 5,5′-dithiobis-(2-nitrobenzoic acid) for the sensitive and quantitative detection of dehydroepiandrosterone (DHEA) through LFA. The developed nanocomposite combined colour signal, SERS, and photothermal properties, providing a
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Published 04 Oct 2023

Silver-based SERS substrates fabricated using a 3D printed microfluidic device

  • Phommachith Sonexai,
  • Minh Van Nguyen,
  • Bui The Huy and
  • Yong-Ill Lee

Beilstein J. Nanotechnol. 2023, 14, 793–803, doi:10.3762/bjnano.14.65

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  • is more cost-effective, straightforward, and accessible. The chemical treatment of PDMS and the glass plate aims to decorate their surfaces with silanol groups (Si–OH), enabling the two surfaces to bond chemically at the atomic level [49]. To determine the droplet size, we used two dye solutions and
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Published 21 Jul 2023

Nanomaterials for photocatalysis and applications in environmental remediation and renewable energy

  • Viet Van Pham and
  • Wee-Jun Ong

Beilstein J. Nanotechnol. 2023, 14, 722–724, doi:10.3762/bjnano.14.58

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  • semiconductor materials for sustainable applications; for instance, dye solar cells, solar-driven water splitting, NOx removal, and contaminant degradation. The synthesis of semiconductor nanomaterials published on this thematic issue indicates a wide range of synthetic routes. The as-prepared nanomaterials
  • with various morphologies demonstrated many preeminent features in the above applications. In detail, the MoS2 with a honeycomb-like structure was first synthesized by an electrochemical route and applied in dye-sensitized solar cells [19], which expressed a higher applicability than that of other
  • nanomaterials for environmental remediation and sustainable applications; for instance, dye solar cells, solar-driven water splitting, NOx removal, and contaminant degradation. This Thematic Issue will make a good reference material and be of great use for scientists in nanomaterials fields. Viet Van Pham and
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Editorial
Published 13 Jun 2023

Titania nanoparticles for photocatalytic degradation of ethanol under simulated solar light

  • Evghenii Goncearenco,
  • Iuliana P. Morjan,
  • Claudiu Teodor Fleaca,
  • Florian Dumitrache,
  • Elena Dutu,
  • Monica Scarisoreanu,
  • Valentin Serban Teodorescu,
  • Alexandra Sandulescu,
  • Crina Anastasescu and
  • Ioan Balint

Beilstein J. Nanotechnol. 2023, 14, 616–630, doi:10.3762/bjnano.14.51

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  • found that TiO2 shows a high photocatalytic efficiency in the decomposition of pollutant substances such as dye wastewater [8][9][10][11], soiling [12], and harmful organic materials [13][14][15]. Also, TiO2 powders show promising results for the decomposition of ethanol in various environments [16][17
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Published 22 May 2023

Nanoarchitectonics to entrap living cells in silica-based systems: encapsulations with yolk–shell and sepiolite nanomaterials

  • Celia Martín-Morales,
  • Jorge Fernández-Méndez,
  • Pilar Aranda and
  • Eduardo Ruiz-Hitzky

Beilstein J. Nanotechnol. 2023, 14, 522–534, doi:10.3762/bjnano.14.43

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  • produced G57-4 silica gel material appears to be a rigid, semitransparent, lightly coloured material. Diffusional tests with an identically synthesised silica gel (G57-4 conditions) prepared in the presence of Congo red dye indicated a higher diffusional limit than that of the formerly studied sepiolite
  • , being observed and opened daily in a sterile environment for gas exchange. On days 1, 3, 5, 7, and 10, the tubes were kept still outside the incubator for 1 h to observe the behaviour of each material. For the diffusional limitation studies, 100 µL of saturated solution of the dye were mixed with 15 mL
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Published 25 Apr 2023
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