Pulsed laser in liquid grafting of gold nanoparticle–carbon support composites

• Madeleine K. Wilsey,
• Teona Taseska,
• Qishen Lyu,
• Connor P. Cox and
• Astrid M. Müller

Beilstein J. Nanotechnol. 2025, 16, 349–361, doi:10.3762/bjnano.16.26

• dissipate heat over lengths of the order of micrometers [33]. This makes nanosecond pulses ideal to limit nonlinear excitation effects. By taking advantage of the well-understood processes of reactive pulsed laser processing for colloid formation [25][31][32], we successfully grafted gold nanoparticles

• custom-made Teflon tub, in 2.0 mL of commercially available aqueous colloid of citrate-capped gold nanoparticles (100 nm, nanoComposix), followed by drying under a heat lamp at 60 °C for 20 min. Physical characterization Scanning electron microscopy (SEM) images were obtained at UR-Nano. A Zeiss Auriga

Preferential enrichment and extraction of laser-synthesized nanoparticles in organic phases

• Theo Fromme,
• Maximilian L. Spiekermann,
• Florian Lehmann,
• Stephan Barcikowski,
• Thomas Seidensticker and
• Sven Reichenberger

Beilstein J. Nanotechnol. 2025, 16, 254–263, doi:10.3762/bjnano.16.20

• synthesize heterogeneous catalysts by deposition of nanoparticles, the specific nanoparticle solubility, and eventually also the colloidal stability of the individual nanoparticles, in different solvents is required [47][48]. If the colloid does not possess required properties such as colloidal stability

• respective alcohols before and after cycling into the monophasic state. For the as-synthesized colloid, the fraction of copper nanoparticles in the bottom phase (PC) was close to 100% for C8 to C10, with a lower fraction of nanoparticles in the 1-hexanol, 1-heptanol, and 1-undecanol experiments. After

• chosen to avoid precipitation of the nanoparticles at the phase boundaries. Heating cycles were performed in a 50 mL vessel, which was heated up to 85 °C with a temperature ramp of 5 °C/min and temperature was held for 15 min. For the cooling of the colloid to room temperature, the heating was turned off

Characterization of ZnO nanoparticles synthesized using probiotic Lactiplantibacillus plantarum GP258

• Prashantkumar Siddappa Chakra,
• Aishwarya Banakar,
• Shriram Narayan Puranik,
• Vishwas Kaveeshwar,
• C. R. Ravikumar and
• Devaraja Gayathri

Beilstein J. Nanotechnol. 2025, 16, 78–89, doi:10.3762/bjnano.16.8

• colloidal system. Our biosynthesized nanoparticles showed a zeta potential of −60 mV. It is considered that a NP colloid with a zeta potential of more than ±30 mV shows good stability against aggregation. The zeta average size was found to be 99 nm (Figure 4e,f). Electrochemical analysis Cyclic voltammetry

Laser synthesis of nanoparticles in organic solvents – products, reactions, and perspectives

• Theo Fromme,
• Sven Reichenberger,
• Katharine M. Tibbetts and
• Stephan Barcikowski

Beilstein J. Nanotechnol. 2024, 15, 638–663, doi:10.3762/bjnano.15.54

• solutes While LSPC in aqueous solutions leads to (partial) oxidation of the generated nanoparticles in the colloid [50][51][94][95][96], the laser-based synthesis of nanoparticles in organic solvents is more likely to retain the initial composition of the material [86][97][98] or to form metal carbides

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

• within the rhizosphere [12][13]. Colloid stability of nanoceria is affected by temperature, pH, surface structure, surface-adsorbed organic and inorganic ligands, and metal/nonmetal ions and their concentrations in the solution surrounding the particles [14]. Nanoceria interacts with soil and plant roots

Studies of probe tip materials by atomic force microscopy: a review

• Ke Xu and
• Yuzhe Liu

Beilstein J. Nanotechnol. 2022, 13, 1256–1267, doi:10.3762/bjnano.13.104

• the direction of new probes and further promotes the broader and deeper application of scanning probe microscope (SPM). Keywords: AFM; carbon nanotube probe; colloid probe; metal probe; Introduction AFM represents a well-established technique for the investigation of the nanosurface morphology

• chloramphenicol based on a vesicular quantum dot-gold colloid composite probe. They successfully developed a fluorescence resonance energy transfer (FRET) based on chloramphenicol (CAP) detection in food. Vesicular nano tracers were prepared by labeling single-stranded DNA-binding proteins on single-stranded

• in Equation 1. In this method, Chighizola et al. verified that adding a large colloid at the end of a topless cantilever beam increased the quality factor and significantly reduced the resonant frequency. This type of probe can better simulate a single-mode spring-mass system. Although some

Recent advances in green carbon dots (2015–2022): synthesis, metal ion sensing, and biological applications

• Aisha Kanwal,
• Naheed Bibi,
• Sajjad Hyder,
• Arif Muhammad,
• Hao Ren,
• Jiangtao Liu and
• Zhongli Lei

Beilstein J. Nanotechnol. 2022, 13, 1068–1107, doi:10.3762/bjnano.13.93

• Aisha Kanwal Naheed Bibi Sajjad Hyder Arif Muhammad Hao Ren Jiangtao Liu Zhongli Lei Key Laboratory of Applied Surface and Colloid Chemistry, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an, 710119, China Department of Chemistry, Shaheed Benazir Bhutto Women University

Solar-light-driven LaFe_xNi_1−xO₃ perovskite oxides for photocatalytic Fenton-like reaction to degrade organic pollutants

• Chao-Wei Huang,
• Shu-Yu Hsu,
• Jun-Han Lin,
• Yun Jhou,
• Wei-Yu Chen,
• Kun-Yi Andrew Lin,
• Yu-Tang Lin and
• Van-Huy Nguyen

Beilstein J. Nanotechnol. 2022, 13, 882–895, doi:10.3762/bjnano.13.79

• remove the excess colloid of the gel and generate loose powders. After that, the obtained powder was ground with an agate grinder evenly and calcined under the air environment at different temperatures (500 °C, 600 °C, 700 °C, 800 °C) for 5 h. With further grinding uniformly, the LaFexNi1−xO3 perovskite

Sputtering onto liquids: a critical review

• Anastasiya Sergievskaya,
• Adrien Chauvin and
• Stephanos Konstantinidis

Beilstein J. Nanotechnol. 2022, 13, 10–53, doi:10.3762/bjnano.13.2

• the colloid chemistry classification [97]. Controlling the ratio between the rates of the processes in Equation 4 and Equation 5 allows one to control the number and size of the primary particles. Fast nucleation leads to the formation of large amounts of nuclei and smaller final primary particles

Alteration of nanomechanical properties of pancreatic cancer cells through anticancer drug treatment revealed by atomic force microscopy

• Xiaoteng Liang,
• Shuai Liu,
• Xiuchao Wang,
• Dan Xia and
• Qiang Li

Beilstein J. Nanotechnol. 2021, 12, 1372–1379, doi:10.3762/bjnano.12.101

• Xiaoteng Liang Shuai Liu Xiuchao Wang Dan Xia Qiang Li School of Materials Science and Engineering, Hebei University of Technology and Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Tianjin, 300130, China Key Laboratory of Colloid and Interface

Morphology-driven gas sensing by fabricated fractals: A review

• Vishal Kamathe and
• Rupali Nagar

Beilstein J. Nanotechnol. 2021, 12, 1187–1208, doi:10.3762/bjnano.12.88

The impact of molecular tumor profiling on the design strategies for targeting myeloid leukemia and EGFR/CD44-positive solid tumors

• Nikola Geskovski,
• Nadica Matevska-Geshkovska,
• Simona Dimchevska Sazdovska,
• Marija Glavas Dodov,
• Kristina Mladenovska and
• Katerina Goracinova

Beilstein J. Nanotechnol. 2021, 12, 375–401, doi:10.3762/bjnano.12.31

• endothelial cells, and the present fenestrae, to remove colloid particles from the bloodstream nurtures the possibility of targeting the leukemia stem cells with NDDSs. In order to reach the BM vasculature, it is of utmost importance that the NDDSs do not interact with the elements of the reticuloendothelial

Transient coating of γ-Fe₂O₃ nanoparticles with glutamate for its delivery to and removal from brain nerve terminals

• Konstantin Paliienko,
• Artem Pastukhov,
• Michal Babič,
• Daniel Horák,
• Olga Vasylchenko and
• Tatiana Borisova

Beilstein J. Nanotechnol. 2020, 11, 1381–1393, doi:10.3762/bjnano.11.122

• achieved. In the next step, the magnetite colloid was stabilized with 0.1 M sodium citrate solution under sonication. The formation of maghemite was completed by oxidation of the magnetite colloid with 5% sodium hypochlorite solution and a subsequent sonication for 5 min. The final washing of the maghemite

• particles was performed as described above and was also finished with 5 min of sonification. The resulting maghemite colloid of was filtered through sterile Millex syringe filters. Particle characterization by transmission electron microscopy Morphology and size distribution of the particles were

Influence of the magnetic nanoparticle coating on the magnetic relaxation time

• Mihaela Osaci and
• Matteo Cacciola

Beilstein J. Nanotechnol. 2020, 11, 1207–1216, doi:10.3762/bjnano.11.105

• Abstract Colloidal systems consisting of monodomain superparamagnetic nanoparticles have been used in biomedical applications, such as the hyperthermia treatment for cancer. In this type of colloid, called a nanofluid, the nanoparticles tend to agglomeration. It has been shown experimentally that the

• , we considered the case in which a colloid is electrostatically stabilised. The system is composed of water-dispersed spherical magnetite nanoparticles whose sizes follow a lognormal distribution. The Hamaker constant for magnetite in water is given as a reference value [20]. The system parameter

Applications of superparamagnetic iron oxide nanoparticles in drug and therapeutic delivery, and biotechnological advancements

• Maria Suciu,
• Corina M. Ionescu,
• Alexandra Ciorita,
• Septimiu C. Tripon,
• Dragos Nica,
• Hani Al-Salami and
• Lucian Barbu-Tudoran

Beilstein J. Nanotechnol. 2020, 11, 1092–1109, doi:10.3762/bjnano.11.94

• interaction with cells depend on surface charge and zeta potential. A higher zeta potential (positive or negative) leads to more stable and dispersed particles in the colloid [76][91]. Positively charged particles tend to stick to the cell surfaces (which have a negatively charged outer layer in general) and

Using gold nanoparticles to detect single-nucleotide polymorphisms: toward liquid biopsy

• María Sanromán Iglesias and
• Marek Grzelczak

Beilstein J. Nanotechnol. 2020, 11, 263–284, doi:10.3762/bjnano.11.20

• ]. Several limitations need to be addressed as well. One of the known issues in colloidal biosensing is the spontaneous formation of a protein corona on the surface of the particles in physiological media [146], inhibiting the interaction of the biomarkers with the colloid, thereby altering the sensitivity

The different ways to chitosan/hyaluronic acid nanoparticles: templated vs direct complexation. Influence of particle preparation on morphology, cell uptake and silencing efficiency

• Arianna Gennari,
• Julio M. Rios de la Rosa,
• Erwin Hohn,
• Maria Pelliccia,
• Enrique Lallana,
• Roberto Donno,
• Annalisa Tirella and
• Nicola Tirelli

Beilstein J. Nanotechnol. 2019, 10, 2594–2608, doi:10.3762/bjnano.10.250

• . DLS data were analysed using the Zetasizer Nano software (Malvern). The data were also used to calculate: ρ = Rg/Rh (shape factor). This parameter defines key geometrical characteristics of a colloid. ρ values are given in literature [23] for a variety of particle morphologies. For example, ρ = 0.775

• provides also information about the colloid compactness through parameters such as their average radius of gyration Rg (it depends on the mass distribution), the shape factor ρ defined as the Rg/RH ratio, and the mass fractal dimension Dm defined as the exponent in the relation between mass of a colloidal

• the scaling between the mass of a colloid and its dimension, therefore is a direct measure of its compactness; for example, for a “dense solid” colloid, its value will approach 3, while its values decrease for aggregates, and therefore this parameter has been used for aggregation studies of, e.g

Polyvinylpyrrolidone as additive for perovskite solar cells with water and isopropanol as solvents

• Chen Du,
• Shuo Wang,
• Xu Miao,
• Wenhai Sun,
• Yu Zhu,
• Chengyan Wang and
• Ruixin Ma

Beilstein J. Nanotechnol. 2019, 10, 2374–2382, doi:10.3762/bjnano.10.228

• solar cells, and the preparation method is relatively simple. Overall, it is a low-cost, low-toxicity preparation method to commercialize perovskite solar cells. Experimental Materials Lead nitrate, polyvinylpyrrolidone, chlorobenzene and isopropanol were purchased from Aladdin. SnO2 colloid was

The role of Ag⁺, Ca²⁺, Pb²⁺ and Al³⁺ adions in the SERS turn-on effect of anionic analytes

• Stefania D. Iancu,
• Andrei Stefancu,
• Vlad Moisoiu,
• Loredana F. Leopold and
• Nicolae Leopold

Beilstein J. Nanotechnol. 2019, 10, 2338–2345, doi:10.3762/bjnano.10.224

• solution. The Raman enhancement is not a result of the colloid aggregation since no broadening of the SPR band was observed in the colloid extinction spectra after the SERS activation of the cit-AgNPs/organic acid mixtures with cations. A weak damping of the SPR band is observed only after the addition of

• -AgNP solution, but not at basic pH values. In this study, this pH limitation is overcome. By activating the colloid with 50 µM Al3+ the SERS spectra of salicylic acid could be obtained in the pH 6–9 range, as shown in Supporting Information File 1, Figure S4. In the case of fumaric acid, the

• boil for another 30 min. A pH 6 was measured after the colloid synthesis. SERS measurements. For the SERS measurements, the cit-AgNPs were activated with Ca2+, Pb2+ or Al3+ cations at a final concentration of 50 µM, which were added to the colloidal solution in the form of nitrate or sulfate salts: Ca

Microfluidics as tool to prepare size-tunable PLGA nanoparticles with high curcumin encapsulation for efficient mucus penetration

• Nashrawan Lababidi,
• Valentin Sigal,
• Aljoscha Koenneke,
• Konrad Schwarzkopf,
• Andreas Manz and
• Marc Schneider

Beilstein J. Nanotechnol. 2019, 10, 2280–2293, doi:10.3762/bjnano.10.220

• nanoprecipitation in order to have better control over the kinetics of the colloid formation. To the best of our knowledge, no comprehensive study has presented relevant experimental evidence enabling more insight into the nanoprecipitation mechanism. Our microfluidic system has a unique feature allowing us to

Mannosylated brush copolymers based on poly(ethylene glycol) and poly(ε-caprolactone) as multivalent lectin-binding nanomaterials

• Stefania Ordanini,
• Wanda Celentano,
• Anna Bernardi and
• Francesco Cellesi

Beilstein J. Nanotechnol. 2019, 10, 2192–2206, doi:10.3762/bjnano.10.212

• multivalent fashion, leading to an increase of turbidity. Interestingly, turbidity was not observed with the monovalent compound PEG9-PCL1-Man1, suggesting that the polymer and the resulting nanosized colloid in water do not have a suitable valency for the formation of Con A clusters. We assumed that the

Pulsed laser synthesis of highly active Ag–Rh and Ag–Pt antenna–reactor-type plasmonic catalysts

• Kenneth A. Kane and
• Massimo F. Bertino

Beilstein J. Nanotechnol. 2019, 10, 1958–1963, doi:10.3762/bjnano.10.192

• [1]. Plasmonic coupling results in an increase in the magnitude of the LSPR-induced electric fields. The selective adsorption of NP groupings to the Ag nanostructure concavities may be a result of LSPR-induced electric fields, which are largest in these highly angular regions. The mixed Ag–Pt colloid

• , comprising Ag–Pt heterostructures, was found to exhibit a slight blue-shift of the LSPR, while the mixed Ag–Rh colloid showed a more pronounced red-shift. Pt and Ag are known to possess lower catalytic activity in the reduction of 4-nitrophenol than Rh [21][22]. Accordingly, Pt and Ag exhibited a lower

Nanoarchitectonics meets cell surface engineering: shape recognition of human cells by halloysite-doped silica cell imprints

• Elvira Rozhina,
• Ilnur Ishmukhametov,
• Svetlana Batasheva,
• Farida Akhatova and
• Rawil Fakhrullin

Beilstein J. Nanotechnol. 2019, 10, 1818–1825, doi:10.3762/bjnano.10.176

• cells templates offer other fascinating opportunities due to their cell-mimicking geometries, for example, a novel class of bioinspired colloid particles was fabricated recently. Colloid antibodies were produced via the formation of solid silica shells doped with gold nanoparticles on bacterial cells

• , only HeLa cells were recognised by the imprints, while yeast cells were ignored. Although this does not guarantee an equally effective recognition of other mammalian cells (i.e., in a mixture with HeLa cells), our results open new avenues for the fabrication of colloid particles capable of shape-based

Chiral nanostructures self-assembled from nitrocinnamic amide amphiphiles: substituent and solvent effects

• Hejin Jiang,
• Huahua Fan,
• Yuqian Jiang,
• Li Zhang and
• Minghua Liu

Beilstein J. Nanotechnol. 2019, 10, 1608–1617, doi:10.3762/bjnano.10.156

• Hejin Jiang Huahua Fan Yuqian Jiang Li Zhang Minghua Liu Beijing National Laboratory for Molecular Science (BNLMS), CAS Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China University of Chinese Academy of Sciences

BiOCl/TiO₂/diatomite composites with enhanced visible-light photocatalytic activity for the degradation of rhodamine B

• Minlin Ao,
• Kun Liu,
• Xuekun Tang,
• Zishun Li,
• Qian Peng and
• Jing Huang

Beilstein J. Nanotechnol. 2019, 10, 1412–1422, doi:10.3762/bjnano.10.139

• solution A. Solution B was obtained by mixing 4 g of diatomite, 20 mL of ethanol, 0.5 mL of glacial acetic acid and 1.5 mL of 0.1 mol/L nitric acid under stirring. In order to obtain the precursor colloid, solution B was dripped into solution A under stirring. After that, the precursor was dried at 60 °C