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Search for "nanorods" in Full Text gives 217 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Morphology and properties of pyrite nanoparticles obtained by pulsed laser ablation in liquid and thin films for photodetection

  • Akshana Parameswaran Sreekala,
  • Bindu Krishnan,
  • Rene Fabian Cienfuegos Pelaes,
  • David Avellaneda Avellaneda,
  • Josué Amílcar Aguilar-Martínez and
  • Sadasivan Shaji

Beilstein J. Nanotechnol. 2025, 16, 785–805, doi:10.3762/bjnano.16.60

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  • techniques; hence, completely different morphologies are reported. Zebarjad et al. reported cauliflower-like blotches developed on the rough surface of nanostructured FeS2 films made via electrodeposition [57]. Nanowires, nanorods, and nanoribbons of 1D single crystalline FeS2 nanostructures with pyrite
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Published 03 Jun 2025

Polyurethane/silk fibroin-based electrospun membranes for wound healing and skin substitute applications

  • Iqra Zainab,
  • Zohra Naseem,
  • Syeda Rubab Batool,
  • Muhammad Waqas,
  • Ahsan Nazir and
  • Muhammad Anwaar Nazeer

Beilstein J. Nanotechnol. 2025, 16, 591–612, doi:10.3762/bjnano.16.46

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  • infected wounds. This composite contains short filaments of electrospun poly(lactic-co-glycolic) acid (PLGA) fibers embedded with gold nanorods (AuNRs) and the anti-inflammatory drug dexamethasone. The filaments are incorporated in a gelatin methacrylate/sodium alginate hydrogel scaffold. The AuNRs render
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Published 24 Apr 2025

Nanomaterials in targeting amyloid-β oligomers: current advances and future directions for Alzheimer's disease diagnosis and therapy

  • Shiwani Randhawa,
  • Trilok Chand Saini,
  • Manik Bathla,
  • Rahul Bhardwaj,
  • Rubina Dhiman and
  • Amitabha Acharya

Beilstein J. Nanotechnol. 2025, 16, 561–580, doi:10.3762/bjnano.16.44

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  • that these NPs effectively bind to oligomeric species, preventing the formation of fibrillar structures [61]. The influence of varying diameters and lengths of cetyltrimethylammonium bromide-stabilized gold nanorods (AuNRs) on Aβ oligomerization and fibrillation has also been thoroughly investigated
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Published 22 Apr 2025

Quantification of lead through rod-shaped silver-doped zinc oxide nanoparticles using an electrochemical approach

  • Ravinder Lamba,
  • Gaurav Bhanjana,
  • Neeraj Dilbaghi,
  • Vivek Gupta and
  • Sandeep Kumar

Beilstein J. Nanotechnol. 2025, 16, 422–434, doi:10.3762/bjnano.16.33

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  • heavy metal lead ions. The prepared lead sensor with ultrahigh sensitivity, based on silver-doped ZnO nanorods (Ag@ZnO NRs), was fabricated and characterized. The morphological, structural, compositional, and optical characteristics of the Ag@ZnO NRs were investigated using a variety of methods after
  • sensitivity toward lead. The lead chemical sensor that was developed had a detection limit of 3 ppm with a sensitivity of 16 µA·ppm−1·cm−2. The recorded reaction time of lead sensor was less than two seconds. Keywords: electrochemical methods; chemical sensor; doping; lead; nanoparticles; ZnO nanorods
  • sensitivity among all. Results and Discussion X-ray diffraction of as-synthesized Ag@ZnO nanorods The Ag@ZnO NRs were analyzed for their crystal phases by evaluating the X-ray diffraction pattern. Figure 1a displays the diffraction pattern of the Ag@ZnO NRs that were formed. It was observed that this pattern
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Published 26 Mar 2025

Emerging strategies in the sustainable removal of antibiotics using semiconductor-based photocatalysts

  • Yunus Ahmed,
  • Keya Rani Dutta,
  • Parul Akhtar,
  • Md. Arif Hossen,
  • Md. Jahangir Alam,
  • Obaid A. Alharbi,
  • Hamad AlMohamadi and
  • Abdul Wahab Mohammad

Beilstein J. Nanotechnol. 2025, 16, 264–285, doi:10.3762/bjnano.16.21

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  • area, exhibits good thermal stability, is non-toxic, and can be easily morphologically modified (such as nanorods, nanosheets, and nanobelts). Because of its higher quantum efficiency, it is anticipated to demonstrate superior photocatalytic activity in comparison with TiO2, g-C3N4, and BiOBr [66
  • without modification with suitable dopants. Chen and his colleagues [86] synthesized nanoscale Bi2O3 and observed little degradation of TC. Modification of Bi2O3 with MnO2, changed the morphology from nanorods to nanosheets. This nanosheet structure showed a higher TC removal efficiency than pure Bi2O3
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Published 25 Feb 2025

Recent advances in photothermal nanomaterials for ophthalmic applications

  • Jiayuan Zhuang,
  • Linhui Jia,
  • Chenghao Li,
  • Rui Yang,
  • Jiapeng Wang,
  • Wen-an Wang,
  • Heng Zhou and
  • Xiangxia Luo

Beilstein J. Nanotechnol. 2025, 16, 195–215, doi:10.3762/bjnano.16.16

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  • photothermal gel, composed of Au nanorods, geraniol, chitosan, and the gene-targeted drug DC_AC50 can be activated by NIR light. Photothermal activation softens the hydrogel composed of geraniol and chitosan, controlling drug release and facilitating PTT at moderate temperatures, thus yielding exceptional anti
  • , aiding in the precise identification of treated areas. Au nanorods, when combined with anti-epithelial cell adhesion molecule (EpCAM), accurately target EpCAM+Y79 retinoblastoma cancer cells [108]. The targeted cells are deemed to be destroyed by VNBs induced by optimally parameterized femtosecond
  • adjacent healthy cells [109]. After eliminating tumor cells, small gold nanorods can penetrate the blood–brain barrier and be effectively excreted from the body through renal excretion, thereby avoiding the production of VNBs near non-cancerous cells. 3.2 Posterior capsule opacity after cataract surgery
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Published 17 Feb 2025

Comparison of organic and inorganic hole transport layers in double perovskite material-based solar cell

  • Deepika K and
  • Arjun Singh

Beilstein J. Nanotechnol. 2025, 16, 119–127, doi:10.3762/bjnano.16.11

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  • nanorods were synthesized via a hydrothermal process, and it was found that they had a larger saturation magnetization [27]. Simulation results yielded PCEs of over 26%, but there are still challenges associated with the application of DPSCs [28]. Results and Discussion In this simulation study, Cu2O and
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Published 06 Feb 2025

Nanocarriers and macrophage interaction: from a potential hurdle to an alternative therapeutic strategy

  • Naths Grazia Sukubo,
  • Paolo Bigini and
  • Annalisa Morelli

Beilstein J. Nanotechnol. 2025, 16, 97–118, doi:10.3762/bjnano.16.10

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  • shapes like ellipsoids, discoids, and nanorods with higher aspect ratios are more effectively localized close to blood vessel walls, enhancing their internalization into endothelial cells and potentially improving their therapeutic delivery [1]. After systemic administration, NCs tend to accumulate in
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Published 31 Jan 2025

Facile synthesis of size-tunable L-carnosine-capped silver nanoparticles and their role in metal ion sensing and catalytic degradation of p-nitrophenol

  • Akash Kumar,
  • Ridhima Chadha,
  • Abhishek Das,
  • Nandita Maiti and
  • Rayavarapu Raja Gopal

Beilstein J. Nanotechnol. 2024, 15, 1576–1592, doi:10.3762/bjnano.15.124

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  • bands and colors of the ʟ-car-AgNPs samples are similar to those published on CTAB-capped silver nanorods [24]. The formation of aggregated nanoparticles in the current study is probably due to the capping of ʟ-carnosine instead of CTAB. In addition, ʟ-carnosine induces a second absorption peak in the
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Published 06 Dec 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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  • SEM micrographs of some 1D-type nanostructures. They were grown at temperatures T = 620–630 °C. The first structure is typical of hexagonal-prism-shaped nanorods, named R1 and R2 in Figure 2a,b. Their diameter can be of several tens to hundreds of nanometres, and their length is about 10–15 μm. The
  • second type of nanostructure has a shape which resembles that of matches or drumsticks, which was mixed with several hexagonal prism-shaped nanorods, named M in Figure 2c. We also collected images of nanopencils, named P1 and P2 in Figure 3d,e, which have hexagonal prism-shaped bodies with sharp tips
  • . They converge at the origin with a size of ≈100 nm. For the second morphology, named T2 in Figure 3b, the tetrapods have long arms of 8–10 μm, where arms are nanorods with diameters of 200–500 nm. Another tetrapod type shown in Figure 3c, named T3, has a morphology similar to that of T2 but with
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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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  • degrading 94.37% of 4-NP within 1 min. In contrast, silver nanospheres effectively detected Hg2+, Cu2+, and Fe3+ at concentrations as low as 1 ppm and degraded 90.78% of 4-NP within 30 min. Moreover, anisotropic gold nanorods (CTAB-AuNR1 and CTAB-AuNR2) showed promising sensing capabilities towards Cu2
  • , respectively, to remove impurities. The supernatants were discarded and the pellets were dispersed in DD water and stored at room temperature. Tunable aspect ratio of gold nanorods capped with CTAB Gold nanorods of different lengths were synthesized using a two-step protocol as described in previous reports
  • with slight modifications [30]. Briefly, in the first step, gold seeds were prepared by mixing CTAB, HAuCl4·3H2O and NaBH4. The seed solution acts as an initiator for synthesizing gold nanorods. In the second step, the growth solution was prepared, consisting of CTAB, AgNO3, HAuCl4·3H2O, HCl, and
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Published 04 Nov 2024

Gold nanomakura: nanoarchitectonics and their photothermal response in association with carrageenan hydrogels

  • Nabojit Das,
  • Vikas,
  • Akash Kumar,
  • Sanjeev Soni and
  • Raja Gopal Rayavarapu

Beilstein J. Nanotechnol. 2024, 15, 678–693, doi:10.3762/bjnano.15.56

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  • hydrogel beads attained up to ≈17.2, ≈17.2, and ≈15.7 °C, respectively. On the other hand, gold nanorods after incorporation into k-CG did not yield much photothermal response as compared to that of AuNMs. The results showed a promising platform to utilize nanomakura particles along with kappa-carrageenan
  • anisotropic gold nanoparticles (AuNPs) have been synthesized and studied in recent years including nanorings, nanoprisms, nanoplates, crooked nanorods, dendrimers, nanocubes, nanodumbells, dogbones, and nanomakura [7][8][9][10][11][12][13][14]. Vis-à-vis to spherical nanoparticles, anisotropic nanoparticles
  • nanorods) showed ≈5 times faster heat generation as compared to that of spherical nanoparticles [16]. However, localized surface plasmon resonance of anisotropic gold nanoparticles are also susceptible to its surrounding medium, thus impacting photothermal effects of these particles in different media [17
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Published 07 Jun 2024

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

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  • is caused by protein denaturation at high temperatures. Impressively, Co3O4 nanomaterials with different morphologies (nanoplates, nanorods, and nanocubes) exhibited the highest relative activity at very high pH (pH 9) and temperature (90 °C) [39]. Similar results were also reported for platinum
  • reduction in infarction size, TNF-α levels, cardiac fibrosis, and improvement in cardiac systolic function. Gold nanorods serving as surface-enhanced Raman scattering probes have demonstrated sensitivity for the early detection of ICAM-1, a significant signal for screening atherosclerosis, particularly in
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Published 12 Apr 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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  • -transport and smoothing layer. Concerning the postulated use of nanorods as acceptors, weight ratios in the active layer of P3HT:PCB71M:QD of 2:1:1 were used so that the weight ratio of donor:acceptors is 1:1. The device efficiency achieved in the simulations in both architectures was increased relative to
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Published 02 Feb 2024

In situ optical sub-wavelength thickness control of porous anodic aluminum oxide

  • Aleksandrs Dutovs,
  • Raimonds Popļausks,
  • Oskars Putāns,
  • Vladislavs Perkanuks,
  • Aušrinė Jurkevičiūtė,
  • Tomas Tamulevičius,
  • Uldis Malinovskis,
  • Iryna Olyshevets,
  • Donats Erts and
  • Juris Prikulis

Beilstein J. Nanotechnol. 2024, 15, 126–133, doi:10.3762/bjnano.15.12

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  • zinc oxide nanorods embedded within the PAAO template [13]. Recently, it was demonstrated that the PAAO thickness tuning can increase the signal intensity and refractometric sensitivity of localized surface plasmon resonance (LSPR) sensors constructed using gold nanoparticles, which are deposited on
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Published 31 Jan 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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  • ]. Nanomaterials have improved the ability to detect pathogens in water and food by enhancing signals and sensitivity. These materials, which encompass nanoparticles, nanorods, nanowires, and nanoclusters, can be combined with aptamers, antibodies, enzymes, and other ligands to display unique physical, chemical
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Published 17 Jan 2024

Influence of conductive carbon and MnCo2O4 on morphological and electrical properties of hydrogels for electrochemical energy conversion

  • Sylwia Pawłowska,
  • Karolina Cysewska,
  • Yasamin Ziai,
  • Jakub Karczewski,
  • Piotr Jasiński and
  • Sebastian Molin

Beilstein J. Nanotechnol. 2024, 15, 57–70, doi:10.3762/bjnano.15.6

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  • surface for the sample Hgel-MCO-cCB 1:3 showed the presence of MCO and cCB particles in the hydrogel scaffold, confirming their entrapment in the polymer matrix (Figure 1b and Figure 1e). A similar composite structure with gold nanorods suspended in the PNIPAAm matrix was observed by Nakielski et al. [47
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Published 11 Jan 2024

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

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  • . Recently, nanostructures including different polytypes of gold have been observed in various experiments and have gained interest regarding potential applications. For example, the interface regions of polytypic gold nanorods were found to be highly active in catalysis [15]. The hexagonal phases seen in
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Published 15 Nov 2023

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

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  • , 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
  • ., temperature, concentrations of chemicals, and annealing time). ZnO nanorods and nanowires have attracted great interest in photodetectors because their chemical and physical properties are exceptional for electronics applications, and their fabrication strategies are more facile than those of other structures
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Published 13 Oct 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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  • architecture of the gold nanoparticles, their plasmonic absorption can be tuned from the visible to the NIR region. Among the different structures of gold, gold nanorods are commonly used as photothermal agents because of the tuneable aspect ratio, anisotropic architecture, and high photoconversion efficiency
  • (PCE). However, studies report that gold nanorods suffer from poor photostability, and loss of shape and NIR LSPR upon laser irradiation [39]. By using palladium nanostructures, photothermal stability could be achieved to some extent as they did not change their shape upon laser irradiation. Palladium
  • , SERS, fluorescence, and photothermal applications [45]. For instance, compared to spherical architectures, anisotropic nanoscale architectures, such as nanostars, nanoflowers, nanopopcorns, nanorods, and nanocages, exhibit superior SERS and photothermal conversion activities [46][47]. Therefore, it is
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Published 04 Oct 2023

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

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  • resulted in loss or overcoating of the surface citrate, and, in some cases, agglomeration [10]. Exposure to vitamin C and glutathione led to dissolution-accompanied aggregation of mesoporous silica CeO2 nanoparticles [35]. The shortening of ceria nanorods from 25 to 8 nm after 14 days at 200 °C was
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Published 27 Jun 2023

Metal-organic framework-based nanomaterials as opto-electrochemical sensors for the detection of antibiotics and hormones: A review

  • Akeem Adeyemi Oladipo,
  • Saba Derakhshan Oskouei and
  • Mustafa Gazi

Beilstein J. Nanotechnol. 2023, 14, 631–673, doi:10.3762/bjnano.14.52

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Published 01 Jun 2023

Plasmonic nanotechnology for photothermal applications – an evaluation

  • A. R. Indhu,
  • L. Keerthana and
  • Gnanaprakash Dharmalingam

Beilstein J. Nanotechnol. 2023, 14, 380–419, doi:10.3762/bjnano.14.33

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  • as spheres and nanorods. 2.1 The plasmonic oscillation frequency The optical response of plasmonic nanoparticles, such as AuNPs, to incident electromagnetic radiation depends on their size, shape, morphology, proximity to one another, as well as the surrounding medium [32]. The vast changes in
  • of proximity as well as morphology influence considerably the LSPR properties, for example, in Au nanorods and nanospheres. In contrast, nanospheres and nanorods exhibited considerable tunability of the LSPR due to changes to the localized electromagnetic field of the plasmons due to changing
  • with respect to changing parameters of the material under consideration can be developed with a few examples of the theoretically arrived optical cross sections of a few generic morphologies of nanoparticles and will be discussed next for the case of nanospheres, nanorods, and nanomatryushkas. The
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Published 27 Mar 2023

Bismuth-based nanostructured photocatalysts for the remediation of antibiotics and organic dyes

  • Akeem Adeyemi Oladipo and
  • Faisal Suleiman Mustafa

Beilstein J. Nanotechnol. 2023, 14, 291–321, doi:10.3762/bjnano.14.26

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  • photocatalyst that can be applied industrially for the remediation of a variety of pollutants in contaminated water. First, photocatalytic activity is significantly influenced by the morphology (e.g., nanoplates, nanotubes, nanowires, nanorods, nanocuboids, nanoflakes, nanosheets, nanocapsules, nanocasts, or
  • bismuth, other semiconductors can be used with it to achieve better performance. In a recent study, Chava et al. [167] synthesised bismuth quantum dots anchored to 1-D cadmium sulfide as a plasmonic photocatalyst using a facile solvothermal procedure. To create heterostructure nanorods, Schottky contacts
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Published 03 Mar 2023

Concentration-dependent photothermal conversion efficiency of gold nanoparticles under near-infrared laser and broadband irradiation

  • Vikas,
  • Raj Kumar and
  • Sanjeev Soni

Beilstein J. Nanotechnol. 2023, 14, 205–217, doi:10.3762/bjnano.14.20

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  • evaluated. Results show that for a concentration of 20.0 µg/mL, 40 nm gold nanospheres, 25 × 47 nm gold nanorods (GNRs), and 10 × 41 nm GNRs show a 4–110% higher photothermal conversion efficiency under NIR broadband irradiation than under NIR laser irradiation. Broadband irradiation seems suitable to
  • broadband light source and a near-infrared laser (for comparison). Gold nanospheres (GNSs) of 40 nm diameter and gold nanorods (GNRs) of sizes 25 × 47 nm, 10 × 38 nm, and 10 × 41 nm were examined. The photothermal conversion efficiency for these GNPs is reported for different nanoparticle concentrations and
  • laser or broadband irradiation. Broadband irradiation results in a much higher efficiency for 25 × 47 nm GNRs, whose peak absorption wavelength highly differs from the irradiation wavelength. A photothermal conversion efficiency of 53% for 10 × 41 nm gold nanorods, as determined in our study, has also
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Published 06 Feb 2023
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