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Search for "high sensitivity" in Full Text gives 193 result(s) in Beilstein Journal of Nanotechnology.

Optically and electrically driven nanoantennas

  • Monika Fleischer,
  • Dai Zhang and
  • Alfred J. Meixner

Beilstein J. Nanotechnol. 2020, 11, 1542–1545, doi:10.3762/bjnano.11.136

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  • configurations with increasing control over their optical performance [1][2][3][4]. The strong local near-field enhancement by plasmonic nanoantennas is being harnessed for high sensitivity, high-resolution optical nanospectroscopy techniques [5], such as surface-enhanced or tip-enhanced Raman spectroscopy (SERS
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Editorial
Published 07 Oct 2020

Helium ion microscope – secondary ion mass spectrometry for geological materials

  • Matthew R. Ball,
  • Richard J. M. Taylor,
  • Joshua F. Einsle,
  • Fouzia Khanom,
  • Christelle Guillermier and
  • Richard J. Harrison

Beilstein J. Nanotechnol. 2020, 11, 1504–1515, doi:10.3762/bjnano.11.133

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  • . This combined HIM–SIMS instrument has intriguing possibilities for geological materials as, unlike previous SIMS techniques limited by the probe size of the primary beam, the small beam size theoretically allows for chemical mapping at high sensitivity with the spatial resolution controlled only by
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Published 02 Oct 2020

A wideband cryogenic microwave low-noise amplifier

  • Boris I. Ivanov,
  • Dmitri I. Volkhin,
  • Ilya L. Novikov,
  • Dmitri K. Pitsun,
  • Dmitri O. Moskalev,
  • Ilya A. Rodionov,
  • Evgeni Il’ichev and
  • Aleksey G. Vostretsov

Beilstein J. Nanotechnol. 2020, 11, 1484–1491, doi:10.3762/bjnano.11.131

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  • has a gain of more than 30 dB and a noise temperature lower than 6 K and is suitable for any high-sensitivity experiments in the presented frequency range. It is also necessary to mention that, during the qubit measurements with the implemented cLNA, the cryostat operating parameters, that is, the
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Published 30 Sep 2020

Triboelectric nanogenerator based on Teflon/vitamin B1 powder for self-powered humidity sensing

  • Liangyi Zhang,
  • Huan Li,
  • Yiyuan Xie,
  • Jing Guo and
  • Zhiyuan Zhu

Beilstein J. Nanotechnol. 2020, 11, 1394–1401, doi:10.3762/bjnano.11.123

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  • ]. Recently, TENG-based sensors have attracted increased attention [34][35][36][37][38][39][40][41]. In 2014, Ga-doped ZnO was used for the fabrication of piezo-humidity sensors with a high sensitivity and a fast response [42]. In 2018, Vivekananthan et al. proposed sustainable energy harvesting and battery
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Published 11 Sep 2020

Ultrasensitive detection of cadmium ions using a microcantilever-based piezoresistive sensor for groundwater

  • Dinesh Rotake,
  • Anand Darji and
  • Nitin Kale

Beilstein J. Nanotechnol. 2020, 11, 1242–1253, doi:10.3762/bjnano.11.108

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  • ] for the ultrasensitive sensing of Cd(II) with cysteamine-functionalized ᴅʟ-glyceraldehyde (Cys-DL-GC) using the advanced MEMS-based piezoresistive platform. The MEMS-based sensor has very high sensitivity compared to any other technique. The complete process flow and the sensing scheme for the
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Published 18 Aug 2020

Gas-sensing features of nanostructured tellurium thin films

  • Dumitru Tsiulyanu

Beilstein J. Nanotechnol. 2020, 11, 1010–1018, doi:10.3762/bjnano.11.85

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  • ] started to thoroughly investigate the use of Te thin films as an active element in gas sensor manufacturing. They showed that microcrystalline Te thin films, grown by thermal vacuum evaporation, exhibit high sensitivity to low concentrations (ppm range) of nitrogen dioxide (NO2) even at room temperature
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Published 10 Jul 2020

Nanoarchitectonics: bottom-up creation of functional materials and systems

  • Katsuhiko Ariga

Beilstein J. Nanotechnol. 2020, 11, 450–452, doi:10.3762/bjnano.11.36

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  • prostate-specific antigen biomarker was expedited by application of advanced data processing and computational tools [34]. The molecular architecture plays a crucial role for obtaining high sensitivity and specificity in immunosensors, thus tools which speed up the ability to analyze the large amounts of
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Published 12 Mar 2020

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

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  • formation of DNA circuits and include hybridization chain reaction (HCR), catalytic hairpin assembly (CHA) and entropy-driven catalysis [64]. These mechanisms have shown a great potential for developing biosensors of high sensitivity and high selectivity since the target DNA itself is used as a catalyst to
  • current state-of-the-art in genotyping techniques in SNP determination, especially in the context of conceptual novelty. Tumor-specific aberrations containing SNP Because the fraction of circulating DNA that is derived from the tumor can range between 0.01% and 93% [41], analytical techniques of high
  • sensitivity are currently implemented to obtain reliable information on tumor-associated genetic modifications and to follow tumor dynamics [4][16][46][56]. These techniques are mainly modifications of the well-known polymerase chain reaction (PCR), establishing thus the state-of-the-art in clinics in the
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Published 31 Jan 2020

Molecular architectonics of DNA for functional nanoarchitectures

  • Debasis Ghosh,
  • Lakshmi P. Datta and
  • Thimmaiah Govindaraju

Beilstein J. Nanotechnol. 2020, 11, 124–140, doi:10.3762/bjnano.11.11

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  • condition, and therefore monitoring physiological pH values with high sensitivity is required. Our group designed a molecular beacon (LMB) DNA device appended with a FRET pair as pH sensing probe in cells [19]. The remarkable feature of the LMB probe was the structural transition from a closed (molecular
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Published 09 Jan 2020

Plasmonic nanosensor based on multiple independently tunable Fano resonances

  • Lin Cheng,
  • Zelong Wang,
  • Xiaodong He and
  • Pengfei Cao

Beilstein J. Nanotechnol. 2019, 10, 2527–2537, doi:10.3762/bjnano.10.243

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  • light within sub-wavelength dimensions. Many plasmonic structures, such as high-sensitivity refractive index sensors [2], enhanced biochemical sensors [3], switches and filters [4], have been designed based on the concept of Fano resonance by utilizing a MDM waveguide [3][5][6]. Due to the interference
  • . Next, we selected typical structures published in recent years for comparison [28][29], and the results are shown in Table 1 below. Obviously, the structure we propose has the most resonance peaks, covering a wavelength range of about 1000–2000 nm in the near-infrared region with relatively high
  • sensitivity and FOM. Although, the FOM value is less than the outstanding values in previous reports, it is worth noting that our structure has the best independent tunability among the structures. It is worth noting that this structure not only displays excellent performance in refractive index sensing, but
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Published 17 Dec 2019

Synthesis and acetone sensing properties of ZnFe2O4/rGO gas sensors

  • Kaidi Wu,
  • Yifan Luo,
  • Ying Li and
  • Chao Zhang

Beilstein J. Nanotechnol. 2019, 10, 2516–2526, doi:10.3762/bjnano.10.242

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  • about 600–1000 nm. The gas sensing test revealed that the introduction of rGO improved the performance of the sensing of acetone to low concentration, and the ZnFe2O4/rGO composite gas sensor containing 0.5 wt % of rGO exhibited a high sensitivity in sensing test using 0.8–100 ppm acetone at 200 °C. The
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Published 16 Dec 2019

Evaluation of click chemistry microarrays for immunosensing of alpha-fetoprotein (AFP)

  • Seyed Mohammad Mahdi Dadfar,
  • Sylwia Sekula-Neuner,
  • Vanessa Trouillet,
  • Hui-Yu Liu,
  • Ravi Kumar,
  • Annie K. Powell and
  • Michael Hirtz

Beilstein J. Nanotechnol. 2019, 10, 2505–2515, doi:10.3762/bjnano.10.241

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  • serum of patients suffering from HCC [23]. In this study, we compare different approaches of binding chemistry for the construction of sensitive fluorescent immunosensors for AFP detection by combining the unique characteristics of click chemistry with the high sensitivity of the biotin–streptavidin
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Published 16 Dec 2019

Label-free highly sensitive probe detection with novel hierarchical SERS substrates fabricated by nanoindentation and chemical reaction methods

  • Jingran Zhang,
  • Tianqi Jia,
  • Yongda Yan,
  • Li Wang,
  • Peng Miao,
  • Yimin Han,
  • Xinming Zhang,
  • Guangfeng Shi,
  • Yanquan Geng,
  • Zhankun Weng,
  • Daniel Laipple and
  • Zuobin Wang

Beilstein J. Nanotechnol. 2019, 10, 2483–2496, doi:10.3762/bjnano.10.239

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  • national standard (5.48 × 10−9 mol/L), as shown in Figure 12. Conclusion We demonstrate a novel method based on indentation and chemical redox reaction to fabricate hierarchical SERS substrates for the detection of probe molecules with high sensitivity. Based on a study of different corrosion times in
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Published 13 Dec 2019

Nonlinear absorption and scattering of a single plasmonic nanostructure characterized by x-scan technique

  • Tushar C. Jagadale,
  • Dhanya S. Murali and
  • Shi-Wei Chu

Beilstein J. Nanotechnol. 2019, 10, 2182–2191, doi:10.3762/bjnano.10.211

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  • result deviates from a horizontal line, providing a high-sensitivity detection scheme for nonlinearity. However, z-scan measurements typically acquire nonlinear responses from thin samples in which multiple nanostructures are illuminated simultaneously, and collective behavior is monitored. The z-scan
  • deviate from the Gaussian profile, thus providing a high-sensitivity detection method for nonlinearity, similar to the z-scan technique. In order to fully characterize the nonlinearity of a single nanostructure, our x-scan setup is equipped with two optical detection paths in forward and backward
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Published 06 Nov 2019

Use of data processing for rapid detection of the prostate-specific antigen biomarker using immunomagnetic sandwich-type sensors

  • Camila A. Proença,
  • Tayane A. Freitas,
  • Thaísa A. Baldo,
  • Elsa M. Materón,
  • Flávio M. Shimizu,
  • Gabriella R. Ferreira,
  • Frederico L. F. Soares,
  • Ronaldo C. Faria and
  • Osvaldo N. Oliveira Jr.

Beilstein J. Nanotechnol. 2019, 10, 2171–2181, doi:10.3762/bjnano.10.210

Graphical Abstract
  • electrical or electrochemical signal. The choice of the molecular architecture for the electrochemical immunosensors is crucial for obtaining high sensitivity and specificity. The matrix on which the bioactive layer is deposited may contain metallic nanoparticles to enhance the electrochemical response [8][9
  • with a multidimensional projection technique applied to immunosensing data [34]. In this paper, we describe an INμ-SPCE to detect PSA using amperometry. To the best of our knowledge, the limit of detection is the lowest in the literature. The high sensitivity is probably connected to the molecular
  • ] in Equation 1 is 0.062 fg·mL−1 : where SD and slope are the standard deviation and slope of the calibration curve, respectively. To our knowledge, this limit of detection is the lowest found in the literature for immunosensors to detect PSA. The high sensitivity could be attributed to the use of MNPs
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Published 06 Nov 2019

Nitrogen-vacancy centers in diamond for nanoscale magnetic resonance imaging applications

  • Alberto Boretti,
  • Lorenzo Rosa,
  • Jonathan Blackledge and
  • Stefania Castelletto

Beilstein J. Nanotechnol. 2019, 10, 2128–2151, doi:10.3762/bjnano.10.207

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Published 04 Nov 2019

Review of advanced sensor devices employing nanoarchitectonics concepts

  • Katsuhiko Ariga,
  • Tatsuyuki Makita,
  • Masato Ito,
  • Taizo Mori,
  • Shun Watanabe and
  • Jun Takeya

Beilstein J. Nanotechnol. 2019, 10, 2014–2030, doi:10.3762/bjnano.10.198

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  • integrated connection, and high sensitivity [42][43]. In addition to these nanotechnological advancements in device fabrication, sensing materials for molecular recognition have been continuously explored on the basis of supramolecular chemistry with the aid of synthetic organic chemistry and materials
  • , the adsorbed H2S gas molecules induce a current between the source and drain. Changes in the intermolecular packing of the sensing organic crystals may cause more exposure of active sites to H2S gas and dramatic shifts of mobility, resulting in unexpectedly high sensitivity. This example indicates
  • nanoarchitectonic control of the structure results in high sensitivity and selectivity. The nanoporous architectures of metal–organic frameworks can also serve as filters for molecular selection. Fan and co-workers prepared an electrical gas sensor for formaldehyde with high selectivity using the molecular sieving
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Published 16 Oct 2019

Gold-coated plant virus as computed tomography imaging contrast agent

  • Alaa A. A. Aljabali,
  • Mazhar S. Al Zoubi,
  • Khalid M. Al-Batanyeh,
  • Ali Al-Radaideh,
  • Mohammad A. Obeid,
  • Abeer Al Sharabi,
  • Walhan Alshaer,
  • Bayan AbuFares,
  • Tasnim Al-Zanati,
  • Murtaza M. Tambuwala,
  • Naveed Akbar and
  • David J. Evans

Beilstein J. Nanotechnol. 2019, 10, 1983–1993, doi:10.3762/bjnano.10.195

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  • nanoparticle tracking analysis (NTA) using a NanoSight LM10 with a laser module LM14 set at a wavelength of 532 nm, NTA 2.3 build 0033 analytical software (Malvern Instruments Ltd, Malvern) and a high-sensitivity sCMOS camera. Particles were suspended in PBS buffer pH 7.4. The samples were injected in the
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Published 07 Oct 2019

Oblique angle deposition of nickel thin films by high-power impulse magnetron sputtering

  • Hamidreza Hajihoseini,
  • Movaffaq Kateb,
  • Snorri Þorgeir Ingvarsson and
  • Jon Tomas Gudmundsson

Beilstein J. Nanotechnol. 2019, 10, 1914–1921, doi:10.3762/bjnano.10.186

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  • microscope. The acceleration voltage of the electron beam was set to 20 kV and the working distance was kept at 3.5 mm for all images presented here. Magnetic hysteresis was characterized using a custom-made high-sensitivity magneto-optical Kerr effect (MOKE) looper using a laser source with 632.8 nm
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Published 20 Sep 2019

Engineered superparamagnetic iron oxide nanoparticles (SPIONs) for dual-modality imaging of intracranial glioblastoma via EGFRvIII targeting

  • Xianping Liu,
  • Chengjuan Du,
  • Haichun Li,
  • Ting Jiang,
  • Zimiao Luo,
  • Zhiqing Pang,
  • Daoying Geng and
  • Jun Zhang

Beilstein J. Nanotechnol. 2019, 10, 1860–1872, doi:10.3762/bjnano.10.181

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  • visualization of pathophysiological processes with high sensitivity but with relatively low spatial resolution and shallow penetration into the tissue [30][31]. Cyanine7.5 NHS ester (Cy7.5), a near infrared fluorescence dye, has attracted extensive attention from researchers in various fields, including optical
  • multimodal imaging nanoprobe, which has both high sensitivity and high spatial resolution for early and precise detection and localization of glioblastoma, is constructed in this work. The multimodal imaging of EGFRvIII overexpression in glioblastoma was performed using Cy7.5-labeled SPIONs with EGFRvIII
  • vivo experiments demonstrated the excellent ability of the as-constructed nanoprobes to detect and characterize U87MG-EGFRvIII tumors with high sensitivity via MRI and optical imaging. Meanwhile, the systematic toxicity experiments indicated that PNPs are safe and can be used for further research
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Published 11 Sep 2019

The impact of crystal size and temperature on the adsorption-induced flexibility of the Zr-based metal–organic framework DUT-98

  • Simon Krause,
  • Volodymyr Bon,
  • Hongchu Du,
  • Rafal E. Dunin-Borkowski,
  • Ulrich Stoeck,
  • Irena Senkovska and
  • Stefan Kaskel

Beilstein J. Nanotechnol. 2019, 10, 1737–1744, doi:10.3762/bjnano.10.169

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  • adsorption experiments carried out on DUT-98(3) in which the uptake is found to decrease upon heating of the powder at 80 °C in dynamic vacuum (Figure 5c). Although no adsorption-induced transitions could be observed in downsized DUT-98 crystals, the samples showed a high sensitivity towards elevated
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Published 20 Aug 2019

Materials nanoarchitectonics at two-dimensional liquid interfaces

  • Katsuhiko Ariga,
  • Michio Matsumoto,
  • Taizo Mori and
  • Lok Kumar Shrestha

Beilstein J. Nanotechnol. 2019, 10, 1559–1587, doi:10.3762/bjnano.10.153

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  • transfer within the assembled structures. Acharya, Shrestha, and co-workers decorated one-dimensional C60 nanorods with zero-dimensional Ag nanoparticles that were used as substrates for surface-enhanced Raman scattering (SERS) to detect model targets such as rhodamine 6G with high sensitivity [246]. This
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Published 30 Jul 2019

High-temperature resistive gas sensors based on ZnO/SiC nanocomposites

  • Vadim B. Platonov,
  • Marina N. Rumyantseva,
  • Alexander S. Frolov,
  • Alexey D. Yapryntsev and
  • Alexander M. Gaskov

Beilstein J. Nanotechnol. 2019, 10, 1537–1547, doi:10.3762/bjnano.10.151

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  • heterostructures were intensively studied as sensitive elements of field-effect or Schottky diode gas sensors. These materials have a high sensitivity to hydrogen and hydrocarbons in the temperature range of 200–600 °C [9][10][11][12][13][14]. The resistive-type sensors based on MO/SiC composite materials have not
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Published 26 Jul 2019

Selective gas detection using Mn3O4/WO3 composites as a sensing layer

  • Yongjiao Sun,
  • Zhichao Yu,
  • Wenda Wang,
  • Pengwei Li,
  • Gang Li,
  • Wendong Zhang,
  • Lin Chen,
  • Serge Zhuivkov and
  • Jie Hu

Beilstein J. Nanotechnol. 2019, 10, 1423–1433, doi:10.3762/bjnano.10.140

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  • ppm, respectively, indicating that the detection range for these three gases can meet the demands for practical application. According to the reported literature [26][27][28], the changes in crystallite size and specific surface area have a positive impact on the high sensitivity at sub-ppm levels
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Published 17 Jul 2019

Gas sensing properties of individual SnO2 nanowires and SnO2 sol–gel nanocomposites

  • Alexey V. Shaposhnik,
  • Dmitry A. Shaposhnik,
  • Sergey Yu. Turishchev,
  • Olga A. Chuvenkova,
  • Stanislav V. Ryabtsev,
  • Alexey A. Vasiliev,
  • Xavier Vilanova,
  • Francisco Hernandez-Ramirez and
  • Joan R. Morante

Beilstein J. Nanotechnol. 2019, 10, 1380–1390, doi:10.3762/bjnano.10.136

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  • Besòs, Catalonia, Barcelona, 08019, Spain 10.3762/bjnano.10.136 Abstract This work is an investigation of the properties of semiconductor materials based on metal oxides, their catalytic properties, and their application as gas sensors, which were shown to exhibit high sensitivity, stability, and
  • show high sensitivity [10][11][12][13][14][15][16][17][18][19][20]. Hierarchical structures with SnO2 nanowires covered with additional nanoscale objects can be used for the improvement of electrical contacts [11][16][17]. A second direction in nanowire sensor development is the manufacturing of
  • , specifically in nanomaterials, and particularly in the investigation of the structure of tin–oxygen systems [35][36][37][38][39]. These methods, in particular, demonstrated high sensitivity to the physical and chemical states of surfaces and interfaces. A sintered lump of tetragonal SnO2 (Alfa Aesar) was used
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Published 08 Jul 2019
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