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Search for "medical" in Full Text gives 347 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Fe3O4 nanoparticles as a saturable absorber for giant chirped pulse generation

  • Ji-Shu Liu,
  • Xiao-Hui Li,
  • Abdul Qyyum,
  • Yi-Xuan Guo,
  • Tong Chai,
  • Hua Xu and
  • Jie Jiang

Beilstein J. Nanotechnol. 2019, 10, 1065–1072, doi:10.3762/bjnano.10.107

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  • applications in ultrafast photonics, medical science, magnetic detection, and electronics. Very recently, FONPs were proposed as an ideal candidate for pulse generation in fiber-based oscillators. However, the pulses obtained to date are on the order of microseconds, which is too long for real application in
  • , and optical modulators. Keywords: erbium laser; Fe3O4 nanoparticles; fiber lasers; saturable absorber; Introduction Fe3O4 nanoparticles (FONPs) are excellent magnetic materials, which allows for many applications in various fields such as medical transmission, microwave devices, and optical devices
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Published 20 May 2019

Enhanced inhibition of influenza virus infection by peptide–noble-metal nanoparticle conjugates

  • Zaid K. Alghrair,
  • David G. Fernig and
  • Bahram Ebrahimi

Beilstein J. Nanotechnol. 2019, 10, 1038–1047, doi:10.3762/bjnano.10.104

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  • Building, Crown Street, University of Liverpool, Liverpool, L69 7ZB, UK 10.3762/bjnano.10.104 Abstract The influenza (“flu”) type-A virus is a major medical and veterinary health concern and causes global pandemics. The peptide “FluPep” is an established inhibitor of influenza virus infectivity in model
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Published 14 May 2019

Experimental study of an evanescent-field biosensor based on 1D photonic bandgap structures

  • Jad Sabek,
  • Francisco Javier Díaz-Fernández,
  • Luis Torrijos-Morán,
  • Zeneida Díaz-Betancor,
  • Ángel Maquieira,
  • María-José Bañuls,
  • Elena Pinilla-Cienfuegos and
  • Jaime García-Rupérez

Beilstein J. Nanotechnol. 2019, 10, 967–974, doi:10.3762/bjnano.10.97

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  • been demonstrated for several applications such as medical diagnosis, environmental monitoring or security control [4]. Most typical configurations of integrated photonic biosensors are based on the use of resonant or interferometric configurations, as it is the case of ring resonators or disks and
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Published 26 Apr 2019

Effects of gold and PCL- or PLLA-coated silica nanoparticles on brain endothelial cells and the blood–brain barrier

  • Aniela Bittner,
  • Angélique D. Ducray,
  • Hans Rudolf Widmer,
  • Michael H. Stoffel and
  • Meike Mevissen

Beilstein J. Nanotechnol. 2019, 10, 941–954, doi:10.3762/bjnano.10.95

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  • are foreign objects, careful evaluation of their toxicological and functional aspects prior to medical application is imperative. In this study, we aimed to determine the effects of gold and polymer-coated silica nanoparticles used in laser tissue soldering on brain endothelial cells and the blood
  • metabolic state of cells have to be further characterized before use for medical purposes. Keywords: blood–brain barrier; laser tissue soldering; nanomedicine; nanoparticle uptake; rBCEC4 cells; Introduction Nanotechnology is commonly used in various fields, such as agriculture and pharmaceutical industry
  • , and has gained further importance over the past few decades [1]. This technology also offers promising possibilities for medical applications such as tumor diagnostics and therapy, as drug carriers or in biodegradable implants, e.g., in laser tissue soldering (LTS) [2]. LTS provides a promising
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Published 25 Apr 2019

The systemic effect of PEG-nGO-induced oxidative stress in vivo in a rodent model

  • Qura Tul Ain,
  • Samina Hyder Haq,
  • Abeer Alshammari,
  • Moudhi Abdullah Al-Mutlaq and
  • Muhammad Naeem Anjum

Beilstein J. Nanotechnol. 2019, 10, 901–911, doi:10.3762/bjnano.10.91

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  • -graphene oxide in different organs after different periods of time (mean ± standard deviation). Acknowledgements This research project was supported by a grant from the Research Center of the Female Scientific and Medical Colleges, Deanship of Scientific Research, King Saud University. The authors thank
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Published 18 Apr 2019

Tungsten disulfide-based nanocomposites for photothermal therapy

  • Tzuriel Levin,
  • Hagit Sade,
  • Rina Ben-Shabbat Binyamini,
  • Maayan Pour,
  • Iftach Nachman and
  • Jean-Paul Lellouche

Beilstein J. Nanotechnol. 2019, 10, 811–822, doi:10.3762/bjnano.10.81

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  • the most extensively studied members in this group, and are used for, e.g., polymer reinforcement, lubrication and electronic devices. Their biocompatibility and low toxicity make them suitable for medical and biological applications. One potential application is photothermal therapy (PTT), a method
  • important advantage of WS2 (and of other TMDCs) nanostructures over their carbon equivalents is the low toxicity and biocompatibility, enabling their use for medical applications. Preliminary studies on rats with WS2 INTs and IFs showed no apparent toxic reaction after oral administration [18], inhalation
  • carbon equivalent and found the toxicity of the former to be lower [23]. Wu et al. produced biocompatible MoS2 nanoparticles by a pulsed laser ablation technique [24]. Examples of medical applications with TMDC nanostructures are their addition as reinforcing agents to polymers for bone-tissue
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Published 02 Apr 2019

Commercial polycarbonate track-etched membranes as substrates for low-cost optical sensors

  • Paula Martínez-Pérez and
  • Jaime García-Rupérez

Beilstein J. Nanotechnol. 2019, 10, 677–683, doi:10.3762/bjnano.10.67

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  • interest in medical diagnosis, security, biodefense or industrial procedures, among other fields of application. For the design and fabrication of these sensing devices, huge efforts have been made in recent years to develop different transducers suitable for each application. According to the transducer
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Published 07 Mar 2019

A carrier velocity model for electrical detection of gas molecules

  • Ali Hosseingholi Pourasl,
  • Sharifah Hafizah Syed Ariffin,
  • Mohammad Taghi Ahmadi,
  • Razali Ismail and
  • Niayesh Gharaei

Beilstein J. Nanotechnol. 2019, 10, 644–653, doi:10.3762/bjnano.10.64

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  • . Graphene nanoribbons (GNRs) which have exceptional electrical, physical, and chemical properties can fulfil all of these requirements. The detection of gas molecules using gas sensors, particularly in medical diagnostics and safety applications, is receiving particularly high demand. GNRs exhibit
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Published 04 Mar 2019

Nanocomposite–parylene C thin films with high dielectric constant and low losses for future organic electronic devices

  • Marwa Mokni,
  • Gianluigi Maggioni,
  • Abdelkader Kahouli,
  • Sara M. Carturan,
  • Walter Raniero and
  • Alain Sylvestre

Beilstein J. Nanotechnol. 2019, 10, 428–441, doi:10.3762/bjnano.10.42

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  • C/Al2O3 bilayers applied to medical devices exhibit a longer-term reliability in comparison to pure PPXC. The goal of this study is to improve the electrical properties of parylene C used in advanced electronic devices [52][53][54] as a gate dielectric or an insulation coating. The challenge is to
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Published 12 Feb 2019

Advanced scanning probe lithography using anatase-to-rutile transition to create localized TiO2 nanorods

  • Julian Kalb,
  • Vanessa Knittel and
  • Lukas Schmidt-Mende

Beilstein J. Nanotechnol. 2019, 10, 412–418, doi:10.3762/bjnano.10.40

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  • ], fuel cells [20], lithium batteries [21][22][23][24][25][26], field-emission devices [27], data storage devices [28], gaso- and electrochromic displays [29][30], and nonlinear optical devices [31]. Even in the field of medical engineering, such structures are promising candidates for improving the
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Published 08 Feb 2019

Sub-wavelength waveguide properties of 1D and surface-functionalized SnO2 nanostructures of various morphologies

  • Venkataramana Bonu,
  • Binaya Kumar Sahu,
  • Arindam Das,
  • Sankarakumar Amirthapandian,
  • Sandip Dhara and
  • Harish C. Barshilia

Beilstein J. Nanotechnol. 2019, 10, 379–388, doi:10.3762/bjnano.10.37

Graphical Abstract
  • light during the medical process. Among metal oxides, SnO2 NWs, an n-type direct wide-band semiconductor (Eg = 3.6 eV at 300 K), was proved to be excellent sub-wavelength waveguide [3][4][5][6][7][12]. The high refractive index (n = 2.1) of SnO2 allows NWs with an optimal size range (100 to 500 nm) to
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Published 07 Feb 2019

Heating ability of magnetic nanoparticles with cubic and combined anisotropy

  • Nikolai A. Usov,
  • Mikhail S. Nesmeyanov,
  • Elizaveta M. Gubanova and
  • Natalia B. Epshtein

Beilstein J. Nanotechnol. 2019, 10, 305–314, doi:10.3762/bjnano.10.29

Graphical Abstract
  • . However, for medical reasons, the product of these parameters should be restricted by a therapeutic limit, f × H0 ≤ 5 × 109 a/m/s [2][3]. Under this condition the alternating magnetic field is safe for healthy body tissues. Worth noting is that very large SAR values reported in a number of experiments [7
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Published 29 Jan 2019

Study of silica-based intrinsically emitting nanoparticles produced by an excimer laser

  • Imène Reghioua,
  • Mattia Fanetti,
  • Sylvain Girard,
  • Diego Di Francesca,
  • Simonpietro Agnello,
  • Layla Martin-Samos,
  • Marco Cannas,
  • Matjaz Valant,
  • Melanie Raine,
  • Marc Gaillardin,
  • Nicolas Richard,
  • Philippe Paillet,
  • Aziz Boukenter,
  • Youcef Ouerdane and
  • Antonino Alessi

Beilstein J. Nanotechnol. 2019, 10, 211–221, doi:10.3762/bjnano.10.19

Graphical Abstract
  • increasing need for optical, photonic and medical devices used in telecommunication, medicine, sensing and imaging applications [1][2] as well as in biology, sustainable development, chemistry and physics. In most cases, micro- or nanostructures are nowadays required in all these fields, thus the study of
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Published 16 Jan 2019

Surface plasmon resonance enhancement of photoluminescence intensity and bioimaging application of gold nanorod@CdSe/ZnS quantum dots

  • Siyi Hu,
  • Yu Ren,
  • Yue Wang,
  • Jinhua Li,
  • Junle Qu,
  • Liwei Liu,
  • Hanbin Ma and
  • Yuguo Tang

Beilstein J. Nanotechnol. 2019, 10, 22–31, doi:10.3762/bjnano.10.3

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  • Siyi Hu Yu Ren Yue Wang Jinhua Li Junle Qu Liwei Liu Hanbin Ma Yuguo Tang CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, P. R. China School of Science, Changchun University of Science and
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Published 03 Jan 2019

Characterization and influence of hydroxyapatite nanopowders on living cells

  • Przemyslaw Oberbek,
  • Tomasz Bolek,
  • Adrian Chlanda,
  • Seishiro Hirano,
  • Sylwia Kusnieruk,
  • Julia Rogowska-Tylman,
  • Ganna Nechyporenko,
  • Viktor Zinchenko,
  • Wojciech Swieszkowski and
  • Tomasz Puzyn

Beilstein J. Nanotechnol. 2018, 9, 3079–3094, doi:10.3762/bjnano.9.286

Graphical Abstract
  • Nanomaterials, such as hydroxyapatite nanoparticles show a great promise for medical applications due to their unique properties at the nanoscale. However, there are concerns about the safety of using these materials in biological environments. Despite a great number of published studies of nanoobjects and
  • chromatography, protein purification, cell-culture substrates, catalyst production and waste management. Lower crystallinity, high purity and high zeta potential of hydroxyapatite nanoparticles are desired in a material intended for long-term medical use in the body. Since calcium deficiency is a feature of
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Published 27 Dec 2018

Size-selected Fe3O4–Au hybrid nanoparticles for improved magnetism-based theranostics

  • Maria V. Efremova,
  • Yulia A. Nalench,
  • Eirini Myrovali,
  • Anastasiia S. Garanina,
  • Ivan S. Grebennikov,
  • Polina K. Gifer,
  • Maxim A. Abakumov,
  • Marina Spasova,
  • Makis Angelakeris,
  • Alexander G. Savchenko,
  • Michael Farle,
  • Natalia L. Klyachko,
  • Alexander G. Majouga and
  • Ulf Wiedwald

Beilstein J. Nanotechnol. 2018, 9, 2684–2699, doi:10.3762/bjnano.9.251

Graphical Abstract
  • State University, Moscow, 119991, Russia National University of Science and Technology «MISIS», Moscow, 119049, Russia Physics Department, Aristotle University of Thessaloniki, Thessaloniki, 54124, Greece Department of Medical Nanobiotechnology, Russian National Research Medical University, Moscow
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Published 16 Oct 2018

Cytotoxicity of doxorubicin-conjugated poly[N-(2-hydroxypropyl)methacrylamide]-modified γ-Fe2O3 nanoparticles towards human tumor cells

  • Zdeněk Plichta,
  • Yulia Kozak,
  • Rostyslav Panchuk,
  • Viktoria Sokolova,
  • Matthias Epple,
  • Lesya Kobylinska,
  • Pavla Jendelová and
  • Daniel Horák

Beilstein J. Nanotechnol. 2018, 9, 2533–2545, doi:10.3762/bjnano.9.236

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  • Biology, NAS of Ukraine, Drahomanov Str. 14/16, Lviv 79005, Ukraine Inorganic Chemistry and Center for Nanointegration, University of Duisburg-Essen, Universitaetsstr. 5-7, D-45117 Essen, Germany Danylo Halytsky Lviv National Medical University, Pekarska Str. 69, Lviv 79000, Ukraine Institute of
  • Mouse melanoma cells of B16F10/wt line, human T-leukemia cells of Jurkat, K562, HL-60 lines and its drug-resistant HL-60/vinc sub-line (overexpression of P-glycoprotein) were a kind gift of Prof. Walter Berger, Institute of Cancer Research, Vienna Medical University (Austria). Human mesenchymal stem
  • oxide particles used in the MTT test. Acknowledgements Financial support of the Czech Science Foundation (No. 17-04918S) is acknowledged. We thank Cedars-Sinai Medical Center’s International Research and Innovation in Medicine Program and the Association for Regional Cooperation in the Fields of Health
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Published 25 Sep 2018

Enhanced antineoplastic/therapeutic efficacy using 5-fluorouracil-loaded calcium phosphate nanoparticles

  • Shanid Mohiyuddin,
  • Saba Naqvi and
  • Gopinath Packirisamy

Beilstein J. Nanotechnol. 2018, 9, 2499–2515, doi:10.3762/bjnano.9.233

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  • problems in medical prognoses such as nonspecific cytotoxicity, insignificant survival rate, re-initialization of cancer, in vitro evolution of multidrug resistance, and unwanted side effects [2]. The failure of conventional therapeutic strategies indicates that additional efforts should be focused
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Published 20 Sep 2018

Droplet-based synthesis of homogeneous magnetic iron oxide nanoparticles

  • Christian D. Ahrberg,
  • Ji Wook Choi and
  • Bong Geun Chung

Beilstein J. Nanotechnol. 2018, 9, 2413–2420, doi:10.3762/bjnano.9.226

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  • properties. In medical applications, for example, magnetic nanoparticles can be used for targeting, imaging, magnetically induced thermotherapy, or for any combination of the three. However, it is still a challenge to obtain narrowly dispersed, reproducible particles through a typical lab-scale synthesis
  • storage [2], environmental studies [3], or in medicine [4]. In medical applications, a particular focus of research lies on the development of multifunctional nanomaterials, as they allow for the parallel treatment and diagnostic monitoring of a diseases and thus would help to reduce the costs of
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Published 10 Sep 2018

Fabrication of photothermally active poly(vinyl alcohol) films with gold nanostars for antibacterial applications

  • Mykola Borzenkov,
  • Maria Moros,
  • Claudia Tortiglione,
  • Serena Bertoldi,
  • Nicola Contessi,
  • Silvia Faré,
  • Angelo Taglietti,
  • Agnese D’Agostino,
  • Piersandro Pallavicini,
  • Maddalena Collini and
  • Giuseppe Chirico

Beilstein J. Nanotechnol. 2018, 9, 2040–2048, doi:10.3762/bjnano.9.193

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  • -forming properties [11][12]. All these properties encouraged extensive investigations focused on fabrication of a diversity of PVA-based materials for various industrial and medical applications, including food packaging materials, wound dressing substrates, etc. [13][14][15][16]. In addition, numerous
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Published 23 Jul 2018

Recent highlights in nanoscale and mesoscale friction

  • Andrea Vanossi,
  • Dirk Dietzel,
  • Andre Schirmeisen,
  • Ernst Meyer,
  • Rémy Pawlak,
  • Thilo Glatzel,
  • Marcin Kisiel,
  • Shigeki Kawai and
  • Nicola Manini

Beilstein J. Nanotechnol. 2018, 9, 1995–2014, doi:10.3762/bjnano.9.190

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  • technological impact. For example, the treatment of surfaces with molecular layers can have beneficial effects as it is well known from PTFE-coated surfaces. There is a need of alternative coatings for modern touch screens to prevent fingerprints and other contaminants. Surfaces for medical applications are
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Published 16 Jul 2018

Biomimetic and biodegradable cellulose acetate scaffolds loaded with dexamethasone for bone implants

  • Aikaterini-Rafailia Tsiapla,
  • Varvara Karagkiozaki,
  • Veroniki Bakola,
  • Foteini Pappa,
  • Panagiota Gkertsiou,
  • Eleni Pavlidou and
  • Stergios Logothetidis

Beilstein J. Nanotechnol. 2018, 9, 1986–1994, doi:10.3762/bjnano.9.189

Graphical Abstract
  • are placed as coatings in medical devices in order to enhance the biocompatibility [2][3][4]. One technique to produce such coatings is electrospinning, which yields long micro- and nanofibers [5]. More specifically, physical and synthetic polymeric fibers of 30–20000 nm in length are produced by
  • three-dimensional (3D) polymeric scaffolds acting as substrates for the growth, differentiation and proliferation of biological cells for their successful implementation in medical devices. This has led to the development of a new generation of diagnostic and therapeutic approaches [12][13]. Although
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Published 13 Jul 2018

Synthesis of carbon nanowalls from a single-source metal-organic precursor

  • André Giese,
  • Sebastian Schipporeit,
  • Volker Buck and
  • Nicolas Wöhrl

Beilstein J. Nanotechnol. 2018, 9, 1895–1905, doi:10.3762/bjnano.9.181

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  • superhydrophilic properties, which has a significant effect on cell growth, making CNWs an interesting material for biotechnology (bio-sensors) and medical technology (implants, diagnostics) [13][17]. The growth of CNWs is often referred to as a three-stage process that was originally proposed by Kondo and co
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Published 29 Jun 2018

Synthesis of hafnium nanoparticles and hafnium nanoparticle films by gas condensation and energetic deposition

  • Irini Michelakaki,
  • Nikos Boukos,
  • Dimitrios A. Dragatogiannis,
  • Spyros Stathopoulos,
  • Costas A. Charitidis and
  • Dimitris Tsoukalas

Beilstein J. Nanotechnol. 2018, 9, 1868–1880, doi:10.3762/bjnano.9.179

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  • cross section in neutron absorption [32]. Hafnium alloys are used in medical applications because they are biocompatible and exhibit high corrosion resistance as well as in aerospace technology because it can increase the mechanical strength of materials [33]. Furthermore, because of its high dielectric
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Published 27 Jun 2018

Cryochemical synthesis of ultrasmall, highly crystalline, nanostructured metal oxides and salts

  • Elena A. Trusova and
  • Nikolai S. Trutnev

Beilstein J. Nanotechnol. 2018, 9, 1755–1763, doi:10.3762/bjnano.9.166

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  • industry and have applications in medical and biological research. Sergeev et al. have shown that the particle size is an active variable that together with other thermodynamic variables determines the state and reactivity of the system, whereby nanoparticles can promote chemical reactions which are not
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Published 12 Jun 2018
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