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

• -HSA-MPs and HSA was cross-linked. After dissolution of the MnCO3 template with EDTA, a colloidal particle suspension of CUR-HSA-MPs was obtained. Comparison of the different CUR samples demonstrated that the color of CUR in DMSO is light brown, indicating dissolved CUR; CUR in water is bright yellow

• albumin proteins [30]. CUR showed strong binding affinity towards HSA, likely at the tryptophan residue, which is present in the hydrophobic cavities of HSA [23][31]. The final CUR-HSA-MPs are obtained after dissolution of the MnCO3 template with EDTA. Characterization of CUR-HSA-MPs Dynamic light

• light. Then, the mixture was centrifuged and washed three times (6,000g for 10 min) with distilled water. The resulting particles were resuspended in 0.9% NaCl and cross-linked with 0.08% GA solution with agitation for 1 h to allow for the cross-linking reaction protected from direct light. After

A bifunctional superconducting cell as flux qubit and neuron

• Dmitrii S. Pashin,
• Pavel V. Pikunov,
• Marina V. Bastrakova,
• Andrey E. Schegolev,
• Nikolay V. Klenov and
• Igor I. Soloviev

Beilstein J. Nanotechnol. 2023, 14, 1116–1126, doi:10.3762/bjnano.14.92

• , Δt = t2 − t1, and (ii) the rise/fall rate of the control pulse DR,F. At the same time, a fairly significant range of acceptable parameters is highlighted (the light colour in Figure 5a) when the “NOT” operation is implemented in the system via Landau–Zener transitions. Usually, this “working” range

Sulfur nanocomposites with insecticidal effect for the control of Bactericera cockerelli

• Lany S. Araujo-Yépez,
• Juan O. Tigrero-Salas,
• Vicente A. Delgado-Rodríguez,
• Vladimir A. Aguirre-Yela and
• Josué N. Villota-Méndez

Beilstein J. Nanotechnol. 2023, 14, 1106–1115, doi:10.3762/bjnano.14.91

• ]. Furthermore, it is well known that α-sulfur shows a maximum absorption peak in the range of 250 to 400 nm [30][31]. Other researchers found clear light absorption peaks of SNPs at 240, 260 and 280 nm [32][33]. EDS analysis (Figure 2) shows the presence of sulfur at a fraction of 28 wt %. In addition, Na, Cl

• temperature, 80 ± 10% relative humidity, and 12 h light/12 h dark photoperiod) [55]. Evaluation of insecticidal efficacy of nanocomposites The evaluation was carried out in vitro in the entomology laboratory of the Universidad de las Fuerzas Armadas – ESPE with eight treatments (Table 2). The experimental

Density functional theory study of Au-fcc/Ge and Au-hcp/Ge interfaces

• Olga Sikora,
• Małgorzata Sternik,
• Benedykt R. Jany,
• Franciszek Krok,
• Przemysław Piekarz and
• Andrzej M. Oleś

Beilstein J. Nanotechnol. 2023, 14, 1093–1105, doi:10.3762/bjnano.14.90

• accumulation (yellow) and charge depletion (light blue) regions with respect to separate Ge and Au slabs terminated with vacuum (see Appendix B for details). One can observe charge accumulation between the interface Ge and Au atoms, as expected for bond formation. Figure 12b presents the charge density map for

•  13 with yellow regions representing charge accumulation and light blue regions indicating charge depletion. For all heterostructures, the charge transfer from Au and Ge interfacial atoms leads to the electron accumulation at approximately half of their distance. At the presented isocharge surface

Dual-heterodyne Kelvin probe force microscopy

• Benjamin Grévin,
• Fatima Husainy,
• Dmitry Aldakov and
• Cyril Aumaître

Beilstein J. Nanotechnol. 2023, 14, 1068–1084, doi:10.3762/bjnano.14.88

• with the application of a light pulse (i.e., a curve is recorded at each point of the surface along a 2D grid). Again, a differential SPV image can be reconstructed from the matrix of spectroscopic curves [5]. However, this approach is not free from artefacts, in particular the cantilever photothermal

• that the modulation frequency of the light source is set high enough, it becomes possible to “stabilize” the static bending in a steady state, and photothermal cantilever excitation can be avoided (by setting the optical modulation at a frequency that differs from the cantilever resonance eigenmodes

• -)periodic electrostatic potential. Within the framework of investigations on photoactive materials, of course, the pump will consist of light pulses (in which case one generates a periodic SPV), but DHe KPFM experiments (as shown below) can also be performed under electrical pumping (by applying bias pulses

Spatial mapping of photovoltage and light-induced displacement of on-chip coupled piezo/photodiodes by Kelvin probe force microscopy under modulated illumination

• Zeinab Eftekhari,
• Nasim Rezaei,
• Hidde Stokkel,
• Jian-Yao Zheng,
• Andrea Cerreta,
• Ilka Hermes,
• Minh Nguyen,
• Guus Rijnders and
• Rebecca Saive

Beilstein J. Nanotechnol. 2023, 14, 1059–1067, doi:10.3762/bjnano.14.87

• spatially map voltage-induced oscillation of various sizes of piezoelectric membranes without the photodiode to investigate their position- and size-dependent displacement. Keywords: Kelvin probe force microscopy (KPFM); light-driven micro/nano systems; piezoelectric membrane; surface photovoltage (SPV

• ); time-dependent AFM; Introduction Light has been recognized as a versatile external energy source to actuate micro/nanorobots with outstanding merits of wireless, remote, and precise controllability [1][2][3][4]. Light-driven micro/nanorobots convert light into mechanical motion and are able to perform

• each function of the components on the overall motion behavior. A variety of characterization techniques, such as white light interferometry, laser Doppler vibrometry (LDV), and double-beam laser interferometry (DBLI) have been used to determine the displacement of piezoelectric membranes [9][10

Recognition mechanisms of hemoglobin particles by monocytes – CD163 may just be one

• Jonathan-Gabriel Nimz,
• Pichayut Rerkshanandana,
• Chiraphat Kloypan,
• Ulrich Kalus,
• Saranya Chaiwaree,
• Axel Pruß,
• Radostina Georgieva,
• Yu Xiong and
• Hans Bäumler

Beilstein J. Nanotechnol. 2023, 14, 1028–1040, doi:10.3762/bjnano.14.85

• a washing solution of 0.9% NaCl containing 0.2% HSA, particles were resuspended in 0.9% NaCl, checked via light microscopy for aggregation, and stored at 4 °C. Particle characterization To ensure that the subsequent experiments would be carried out on particles that also met the quality requirements

• content in this suspension was 5.4 ± 0.02 mg/mL. Analysis by zetasizer showed an average particle size of 781 ± 7 nm, a conductivity of 1.34 ± 0.07 mS/cm, and a zeta potential of −28.0 ± 0.5 mV. The oxygen release method measurement showed a percentage of 81.4% ± 2.13% functional Hb. Light microscopy

• , and CD204, or all of them, were blocked by specific antibodies (CD14-block+HbMP-prefed-30′, CD33-block+HbMP-prefed-30′, CD163-block+HbMP-prefed-30′, CD204-block+HbMP-prefed-30′, and CD14-33-163-204-block+HbMP-prefed-30′). After an incubation period of 30 min protected from light and at room

A visible-light photodetector based on heterojunctions between CuO nanoparticles and ZnO nanorods

• Doan Nhat Giang,
• Nhat Minh Nguyen,
• Duc Anh Ngo,
• Thanh Trang Tran,
• Le Thai Duy,
• Cong Khanh Tran,
• Thi Thanh Van Tran,
• Phan Phuong Ha La and
• Vinh Quang Dang

Beilstein J. Nanotechnol. 2023, 14, 1018–1027, doi:10.3762/bjnano.14.84

• 70000, Vietnam Center for Innovative Materials and Architectures (INOMAR), Ho Chi Minh City 70000, Vietnam 10.3762/bjnano.14.84 Abstract Optoelectronic devices have various applications in medical equipment, sensors, and communication systems. Photodetectors, which convert light into electrical signals

• , have gained much attention from many research teams. This study describes a low-cost photodetector based on CuO nanoparticles and ZnO nanorods operating in a wide range of light wavelengths (395, 464, 532, and 640 nm). Particularly, under 395 nm excitation, the heterostructure device exhibits high

• nanoparticles and ZnO nanorods obtained via a simple and cost-effective synthesis process has great potential for optoelectronic applications. Keywords: CuO nanoparticles; heterojunction; optoelectronics; visible-light photodetector; ZnO nanorods; Introduction Optoelectronics is a field to accelerate the

Exploring internal structures and properties of terpolymer fibers via real-space characterizations

• Michael R. Roenbeck and
• Kenneth E. Strawhecker

Beilstein J. Nanotechnol. 2023, 14, 1004–1017, doi:10.3762/bjnano.14.83

• comparing the internal structures of these two fiber classes and relate our observations to extensive mechanical testing reported in the literature. Our findings shed new light on the unique interior morphologies of Technora® terpolymer fibers and, in turn, highlight important considerations for the

• Technora® subdomains may be especially amenable to this characterization, which could shed more light on the sequencing of molecular subdomains (Figure 9) discussed here and in previous reports [2][3][4][5]. In addition, it would be interesting to apply the FIB notch technique to Kevlar® and Technora

• ) Stiffness map of the same domain. Scale ranges for each scan are approximately (a, b) 0–12 nm and (c) 0.5–2.5 N/m dark to light. Quantitative AFM maps of internal Technora® fiber nanostructures. (a) Topography map of 1 μm × 1 μm region within a Technora® fiber. (b) Left-to-right trace and retrace line scans

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

• analytes using LFAs. One of the promising strategies is to enhance the photothermal properties of nanomaterials to generate heat after light irradiation, followed by a temperature measurement to detect and quantify the analyte concentration. Recently, it has been observed that the nanoscale architecture of

• various important photothermal materials and their classification along with their working principle. Then, we highlight important aspects of the nanoscale architecture (i.e., size, shape, and composition) to enable maximum light-to-heat conversion efficiency. Finally, we discuss some of the recent

• , before being captured by immobilized biomolecules on a test line in the nitrocellulose membrane [6][7]. In conventional LFAs, most commonly gold nanoparticles and coloured cellulose nanobeads have been used as tracer elements because of strong light absorption and surface plasmon resonance, which yield

Antibody-conjugated nanoparticles for target-specific drug delivery of chemotherapeutics

• Mamta Kumari,
• Amitabha Acharya and
• Praveen Thaggikuppe Krishnamurthy

Beilstein J. Nanotechnol. 2023, 14, 912–926, doi:10.3762/bjnano.14.75

• chains, that is, two heavy and two light chains (Figure 2a). The two heavy chains are linked together via disulfide bonds. Also, each heavy chain is bonded this way to one light chain. Because of two identical antigen binding sites, the antibody has the ability to bind simultaneously with two identical

Ni, Co, Zn, and Cu metal-organic framework-based nanomaterials for electrochemical reduction of CO₂: A review

• Ha Huu Do and
• Hai Bang Truong

Beilstein J. Nanotechnol. 2023, 14, 904–911, doi:10.3762/bjnano.14.74

• electrochemical reduction of CO2 into CO, with an FE of 65%. The research group also revealed that the Zn2+ species operate as active sites in the catalytic process. Another investigation shed light on the significance of organic ligands within Zn-based MOF architectures for CO2RR. Jiang et al. prepared four Zn

Green SPIONs as a novel highly selective treatment for leishmaniasis: an in vitro study against Leishmania amazonensis intracellular amastigotes

• Brunno R. F. Verçoza,
• Robson R. Bernardo,
• Luiz Augusto S. de Oliveira and
• Juliany C. F. Rodrigues

Beilstein J. Nanotechnol. 2023, 14, 893–903, doi:10.3762/bjnano.14.73

• concentrations of SPIONs (1, 5, 10, 50, and 100 µg/mL) were added, and cells were cultured for 96 h. The cell density was calculated every 24 h by counting the number of cells in a Neubauer chamber using contrast-phase light microscopy. Besides, SPIONs were also evaluated against intracellular amastigotes, the

Two-dimensional molecular networks at the solid/liquid interface and the role of alkyl chains in their building blocks

• Suyi Liu,
• Yasuo Norikane and
• Yoshihiro Kikkawa

Beilstein J. Nanotechnol. 2023, 14, 872–892, doi:10.3762/bjnano.14.72

• resolution. (ii) Post-reaction is available by external stimuli such as the addition of metal ions for metal coordination, light irradiation for photoreaction, and post-blending of other molecules. (iii) The dynamic process of the 2D structural change (caused by the external stimuli) can be followed in situ

N-Heterocyclic carbene-based gold etchants

• Robert B. Chevalier,
• Justin Pantano,
• Matthew K. Kiesewetter and
• Jason R. Dwyer

Beilstein J. Nanotechnol. 2023, 14, 865–871, doi:10.3762/bjnano.14.71

• , an NHC-based monolayer has even been shown to protect against thiol displacement on gold surfaces [13]. Thus, in spite of the challenges that can be presented by NHC synthesis [17], they offer appeal even in light of the more general commercial availability of a wide range of thiols. The covalent

Industrial perspectives for personalized microneedles

• Remmi Danae Baker-Sediako,
• Benjamin Richter,
• Matthias Blaicher,
• Michael Thiel and
• Martin Hermatschweiler

Beilstein J. Nanotechnol. 2023, 14, 857–864, doi:10.3762/bjnano.14.70

• that can overcome these challenges [27]. Specifically, light-based 3D printing techniques such as stereolithography (SLA), digital light processing (DLP), and two-photon polymerization (2PP) simplify the rapid prototyping workflow when compared to traditional micro- and nanofabrication methods [28][29

• ][40] (Figure 3). As with most bio-inspired microneedles, they require miniaturization, shape accuracy, and reproducibility for clinical applications. As mentioned above, light-based 3D printing (SLA, DLP, and 2PP) are the newest methods for fabricating microneedles. Each method has its own advantages

• and disadvantages; for brevity, we encourage readers to access previous review papers that cover in depth light-based fabrication techniques [41][42][43]. SLA and DLP are by far the most common techniques for fabricating microneedles, with approximately eight times as many publications as publications

Biomimetics on the micro- and nanoscale – The 25th anniversary of the lotus effect

• Matthias Mail,
• Kerstin Koch,
• Thomas Speck,
• William M. Megill and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2023, 14, 850–856, doi:10.3762/bjnano.14.69

• colour is produced by the hierarchical micro- and nanostructure of the surface. The reflection of light depends on the angle of incidence. In addition to superhydrophobicity, these results suggest that the scales have another function – their hierarchical structures produce the brilliant white colour

• example of a light-weight structure. b) A gecko – one of the best-known archetypes for biomimetic adhesion. c) An example of the curiosities that nature holds – a slime mould whose spores exhibit superhydrohobic properties. d) A pitcher plant, which has on the edges a special and very slippery surface to

Nanostructured lipid carriers containing benznidazole: physicochemical, biopharmaceutical and cellular in vitro studies

• Giuliana Muraca,
• María Esperanza Ruiz,
• Rocío C. Gambaro,
• Sebastián Scioli-Montoto,
• María Laura Sbaraglini,
• Gisel Padula,
• José Sebastián Cisneros,
• Cecilia Yamil Chain,
• Vera A. Álvarez,
• Cristián Huck-Iriart,
• Guillermo R. Castro,
• María Belén Piñero,
• Matias Ildebrando Marchetto,
• Catalina Alba Soto,
• Germán A. Islan and
• Alan Talevi

Beilstein J. Nanotechnol. 2023, 14, 804–818, doi:10.3762/bjnano.14.66

• ) and a biphasic drug release profile with an initial burst release followed by a prolonged phase. The hydrodynamic average diameter and zeta potential of NLC obtained by dynamic light scattering were approximately 150 nm and −13 mV, respectively, while spherical and well-distributed nanoparticles were

• ] software showed a mean particle size of 150 ± 13 nm. Accordingly, the hydrodynamic diameter of the nanoparticles measured by dynamic light scattering (DLS) was in the 100–200 nm range (≈150 nm), with a moderate distribution of sizes as indicated by a polydispersity index (PdI) of 0.204. The zeta potential

• unaltered during the storage period, and the zeta potential parameter started at −10 mV and ended up at −15 mV after six months. Dynamic light scattering analysis of the formulations revealed nanoparticles with a hydrodynamic diameter in the 100−200 nm range (≈50 nm) starting at 146 nm and slightly

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

• 1974 [5]. Electromagnetic and chemical mechanisms are attributed to the SERS enhancement. In electromagnetic theory, the excitation of metal particles through light leads to localized surface plasmon resonance due to the collective oscillation of free electrons in the confined space of the metal

• ), mineral oil (light molecular biology grade), sorbitan monooleate (SPAN 80), and trisodium citrate dehydrate (TCD) (99%) were purchased from Alfa Aesar (Republic of Korea). Sylgard 184 A&B was obtained from Sewang Hitech (Republic of Korea), and the XL-1500 UV cross-linker used for UV curing was purchased

• -treated by being soaked for 20 min in a 90% (v/v) isopropanol solution, followed by 10 min in deionized water, and then gently dried in a nitrogen flow. After that, the mold was exposed to UV light at an energy level of 120 mJ·cm−2 for 30 s and then annealed at 60 °C for 12 h in an oven for slow

Silver nanoparticles loaded on lactose/alginate: in situ synthesis, catalytic degradation, and pH-dependent antibacterial activity

• Nguyen Thi Thanh Tu,
• T. Lan-Anh Vo,
• T. Thu-Trang Ho,
• Kim-Phuong T. Dang,
• Van-Dung Le,
• Phan Nhat Minh,
• Chi-Hien Dang,
• Vinh-Thien Tran,
• Van-Su Dang,
• Tran Thi Kim Chi,
• Hieu Vu-Quang,
• Radek Fajgar,
• Thi-Lan-Huong Nguyen,
• Van-Dat Doan and
• Thanh-Danh Nguyen

Beilstein J. Nanotechnol. 2023, 14, 781–792, doi:10.3762/bjnano.14.64

• nanocomposite was then centrifuged and washed with distilled water. The purified nanocomposite was stored at 4 °C for further experiments. Characterizations of AgNPs@Lac/Alg nanocomposite The size distribution and stability of the nanocomposites were determined using dynamic light scattering (DLS) and zeta

Carboxylic acids and light interact to affect nanoceria stability and dissolution in acidic aqueous environments

• Matthew L. Hancock,
• Eric A. Grulke and
• Robert A. Yokel

Beilstein J. Nanotechnol. 2023, 14, 762–780, doi:10.3762/bjnano.14.63

• carboxylates are found in underground and aerial plant parts. To further test nanoceria stability, suspensions were exposed to light and dark conditions, simulating plant environments and biological systems. Light induced nanoceria agglomeration in the presence of some carboxylic acids. Nanoceria agglomeration

• did not occur in the dark in the presence of most carboxylic acids. Light initiates free radicals generated by ceria nanoparticles. Nanoceria completely dissolved in the presence of citric, malic, and isocitric acid when exposed to light, attributed to nanoceria dissolution, release of Ce3+ ions, and

• light was studied to simulate exposure to sunlight compared to nanoceria suspensions protected from light. Light versus dark environments To assess the effect of light, samples were placed on a laboratory bench near windows and compared to replicates stored in the dark to simulate plant environments and

Control of morphology and crystallinity of CNTs in flame synthesis with one-dimensional reaction zone

• Muhammad Hilmi Ibrahim,
• Norikhwan Hamzah,
• Mohd Zamri Mohd Yusop,
• Ni Luh Wulan Septiani and
• Mohd Fairus Mohd Yasin

Beilstein J. Nanotechnol. 2023, 14, 741–750, doi:10.3762/bjnano.14.61

• utilized in photon energy conversion devices due to the excellent photo response in the visible and near-UV light regions. Hence, controlling morphology and functionalization of such nanomaterials during synthesis will open vast opportunities to satisfy the requirements for various specific applications

Cross-sectional Kelvin probe force microscopy on III–V epitaxial multilayer stacks: challenges and perspectives

• Mattia da Lisca,
• José Alvarez,
• James P. Connolly,
• Nicolas Vaissiere,
• Karim Mekhazni,
• Jean Decobert and
• Jean-Paul Kleider

Beilstein J. Nanotechnol. 2023, 14, 725–737, doi:10.3762/bjnano.14.59

• 5.75 eV. KPFM measurements were performed under dark conditions and under illumination on the cross section of the sample. The acquisition of VCPD/light enables the evaluation of the surface photovoltage (SPV), which is defined as the light-induced change of the contact potential difference at the

• surface of a photoactive material [20]. Since the surface potential of the tip is assumed to be unaffected by illumination, the difference between VCPD/light and VCPD/dark is equal to the change in surface potential of the sample between illumination and dark, which defines the surface photovoltage: It is

• important to mention that although KPFM is primarily a surface technique, the SPV can be sensitive to the presence of buried interfaces and/or deep charge trap states that may be present far from the surface in the bulk of semiconductors. Therefore, in our study the white light coming from the camera

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

• photocatalysis mechanism outlining several possible targets (i.e., NOx degradation, water splitting, degradation of organic pollutants, and enhancement of electron generation in a solar-cell application). This Thematic Issue highlights recent experimental and theoretical developments in using light harvesting by

• development of advanced materials based on semiconductors (i.e., carbon-modified hexagonal boron nitride (MBN), MgO@g-C3N4, and TiO2@MWCNTs) have indicated a highly efficient photocatalytic performance for phenol removal using a low-power visible LED light source. For NO degradation, a visible light source

The microstrain-accompanied structural phase transition from h-MoO₃ to α-MoO₃ investigated by in situ X-ray diffraction

• Zeqian Zhang,
• Honglong Shi,
• Boxiang Zhuang,
• Minting Luo and
• Zhenfei Hu

Beilstein J. Nanotechnol. 2023, 14, 692–700, doi:10.3762/bjnano.14.55

• File 1 shows photodegradation experiments of methylene blue irradiated by ultraviolet light. The photodegradation rate of methylene blue was quantitatively estimated by pseudo-first-order kinetics. The reaction rate constants (k) are 0.01625, 0.01882, and 0.01258 min−1 for the samples calcinated at 300