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https://www.readbyqxmd.com/read/28332486/fabrication-of-the-flexible-highly-ordered-porous-alumina-templates-by-the-combined-nanosphere-lithography-and-anodization
#1
Michal Krupinski, Marcin Perzanowski, Alexey Maximenko, Yevhen Zabila, Marta Marszalek
In this work, we propose a new method for a large-scale production of flexible, periodic alumina arrays with well-ordered pores. We show the incorporation of pre-patterning based on a polystyrene (PS) nanosphere lithography into aluminium anodization process. We prepared ordered monolayers of PS spheres with average diameters of (510 ± 10) nm, and (430 ± 10) nm on a large area (1.5 x 1.5 cm<sup>2</sup>) of the Si substrate. Next, we deposited the 5 μm aluminium layer on arrays of PS nanospheres using the sputtering technique...
March 23, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28324641/preparation-of-a-non-woven-poly-%C3%AE%C2%B5-caprolactone-fabric-with-partially-embedded-apatite-surface-for-bone-tissue-engineering-applications-by-partial-surface-melting-of-poly-%C3%AE%C2%B5-caprolactone-fibers
#2
In Ae Kim, Sang-Hoon Rhee
This paper describes a novel method for the preparation of a biodegradable non-woven poly(ε-caprolactone) fabric with a partially-embedded apatite surface designed for application as a scaffold material for bone tissue engineering. The non-woven poly(ε-caprolactone) fabric was generated by the electro-spinning technique and then apatite was coated in simulated body fluid after coating the PVA solution containing CaCl2 ·2H2 O. The apatite crystals were partially- or fully-embedded into the thermoplastic poly(ε-caprolactone) fibers by controlling the degree of poly(ε-caprolactone) fiber surface melting in a convection oven...
March 21, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28290197/highly-conductive-and-uniform-alginate-silver-nanowire-composite-transparent-electrode-by-room-temperature-solution-processing-for-organic-light-emitting-diode
#3
Lu Lian, Dan Dong, Shuai Yang, Bingwu Wei, Gufeng He
A novel transparent electrode composed of alginate/silver nanowire (AgNW) with high conductivity and low roughness is fabricated via a solution process at room temperature. The sol-gel transition of the alginate triggered by CaCl2 solution bonds the AgNWs to the substrate tightly. Meanwhile, Cl(-) in the solution can renovate the cracks on the AgNW surfaces created during the mechanical pressing, resulting in a great increase of the electrical conductivity. The alginate/AgNW composite film can reach a sheet resistance of 2...
March 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28267128/medical-adhesive-related-skin-injury-following-emergent-appendectomy-a-case-study-of-marsi-and-missed-opportunities-in-nursing-care
#4
Sylvia E Britt, Karen M Coles, Shannon S Polson
BACKGROUND: The potential for skin damage from adhesive products is documented in the literature. Nevertheless, health care providers continue to lack understanding of the impact and seriousness of skin injury associated with use of tapes or other adhesive devices when applied to a patient with a history or hypersensitivity or allergy to adhesives. CASE: A 67-year-old woman with a history of tape allergy underwent emergency appendectomy. Initial removal of an adhesive bandage placed over the surgical incision revealed medical adhesive-related skin injury (MARSI)...
March 2017: Journal of Wound, Ostomy, and Continence Nursing
https://www.readbyqxmd.com/read/28249492/15-cm-1-to-12-000-cm-1-spectral-coverage-without-changing-optics-diamond-beam-splitter-adaptation-of-an-ftir-spectrometer
#5
Dmitry Strelnikov, Bastian Kern, Christoph Sürgers, Manfred M Kappes
In order to facilitate IR absorption measurements, we have upgraded our Bruker IFS66v/S Fourier-transform infrared (FTIR) spectrometer. A synthetic diamond beam splitter without compensator plate and UHV diamond viewports was installed. We have also modified the IR detector chamber to allow measurements with 5 different detectors. As a result we can now obtain FT absorption spectra from 12 000 cm(-1) to 15 cm(-1) with the same sample held under ultrahigh vacuum conditions, simply by switching between appropriate IR detectors...
February 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/28228539/three-dimensional-printing-spiders-back-and-forth-glue-application-yields-silk-anchorages-with-high-pull-off-resistance-under-varying-loading-situations
#6
Jonas O Wolff, Marie E Herberstein
The anchorage of structures is a crucial element of construction, both for humans and animals. Spiders use adhesive plaques to attach silk threads to substrates. Both biological and artificial adhesive structures usually have an optimal loading angle, and are prone to varying loading situations. Silk anchorages, however, must cope with loading in highly variable directions. Here we show that the detachment forces of thread anchorages of orb-web spiders are highly robust against pulling in different directions...
February 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28222258/simple-and-large-scale-strategy-to-prepare-flexible-graphene-tape-electrode
#7
Li Wang, Jie Yu, Yayun Zhang, Han Yang, Longfei Miao, Yonghai Song
A simple and large-scale strategy to prepare flexible graphene tape electrode (GTE) was proposed. The flexible GTE was prepared by a facile peeling method in which a piece of commercial graphite foil was first covered by a commercial acrylic transparent tape and then the transparent adhesive tape was quickly torn off from the graphite foil. Scanning electron microscopy results showed that some folded and wrinkled graphene layers stood up on the GTE surface to form three-dimensional (3D) porous graphene foam...
February 28, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28222156/toothbrush-abrasivity-in-a-long-term-simulation-on-human-dentin-depends-on-brushing-mode-and-bristle-arrangement
#8
Mozhgan Bizhang, Ilka Schmidt, Yong-Hee Patricia Chun, Wolfgang H Arnold, Stefan Zimmer
OBJECTIVE: The aim of this study was to evaluate the susceptibility of dentin to brushing abrasion using four different toothbrushes (rotating-oscillating, sonic and two types of manual toothbrushes) with the same brushing forces. METHODS: Dentin samples (n = 72) were selected from 72 impacted third molars. Half of the surface of dentin samples was covered with an adhesive tape, creating a protected and a freely exposed area in the same specimen. Brushing was performed with either a: sonic (Sonicare PowerUp, Philips GmbH, Hamburg, Germany), b: oscillating-rotating (Oral B Vitality Precisions Clean, Procter & Gamble, Schwalbach am Taunus, Germany) or two different manual toothbrushes c: flat trim brush head toothbrush (Dr...
2017: PloS One
https://www.readbyqxmd.com/read/28192908/beyond-conventional-patterns-new-electrochemical-lithography-with-high-precision-for-patterned-film-materials-and-wearable-sensors
#9
Xiaowei Zhang, Shaojun Guo, Yanchao Han, Jing Li, Erkang Wang
We report a simple, low-cost, and brand-new electrochemical lithography technique for replicating the template pattern with high resolution at ∼2 μm. The developed method is that the electroactive material is first deposited on the patterned conductive template by the electrochemical technique and then peeled by an adhesive tape/material. The resulting film with the precise pattern shows excellent mechanical and electronic properties and promises high prospect in designing flexible electronics. This interesting approach can be performed at ambient conditions and easily generalized to pattern various electroactive materials covering metal, alloy, nonmetal, salt, oxide, and composite on different types of substrates in several seconds to a few minutes, making the mass production of flexible/rigid/stretchable patterned thin films quite possible...
February 7, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28184055/clinical-applications-of-polytetrafluoroethylene-ptfe-tape-in-restorative-dentistry
#10
M M Sattar, M Patel, A Alani
Restorative dental procedures are ever developing; one reason for this can be attributed to newer materials with better handling properties and our ability to manipulate them more effectively. As a result various techniques have been described to aid clinicians in obtaining predictable results in restorative dental procedures. This article aims to review the use of plumber's tape to assist in adhesive, endodontic and implant related dental procedures, when compared to other available materials.
February 10, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28174448/effects-of-two-different-mobilization-techniques-on-pain-range-of-motion-and-functional-disability-in-patients-with-adhesive-capsulitis-a-comparative-study
#11
Surabhi Agarwal, Shahid Raza, Jamal Ali Moiz, Shahnawaz Anwer, Ahmad H Alghadir
[Purpose] This study aimed to compare the effects of two different mobilization techniques in the management of patients with adhesive capsulitis. [Subjects and Methods] Thirty non-diabetic men and women with adhesive capsulitis were randomly allocated to the reverse distraction group (n=15) or Kaltenborn group (n=15). The reverse distraction technique and Kaltenborn's caudal and posterior glides (grades III and IV) were applied 10-15 times along with conventional physical therapy for 18 treatment sessions in 6 weeks...
December 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28135750/-ophthalmic-plastic-surgery-of-exposure-keratopathy-in-the-intensive-care-unit
#12
C Siebert, A Menges, F H Tost
Critically ill patients in the intensive care unit (ICU) may develop eye problems, due to impaired ocular protective mechanisms or direct involvement of the eye in severe systemic diseases. If eye infections or ocular surface disorders are not identified in time, endophthalmitis or corneal ulcer may develop and can cause permanent functional injuries of the eye. A retrospective analysis was performed and a total of 283 complete intensive care courses of treatment were evaluated, taking into account ophthalmic medical consultations for frequent cardinal symptoms...
January 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28111063/comparison-of-the-mechanical-properties-of-therapeutic-elastic-tapes-used-in-sports-and-clinical-practice
#13
COMPARATIVE STUDY
Joao Paulo Chieregato Matheus, Rafael Ribeiro Zille, Liana Barbaresco Gomide Matheus, Thiago Vilela Lemos, Rodrigo Luiz Carregaro, Antônio Carlos Shimano
STUDY DESIGN: Cross-sectional laboratory study. OBJECTIVE: The aim of the present study was to evaluate and compare the mechanical properties of different therapeutic elastic tapes used in sports and clinical practice. BACKGROUND: Therapeutic tapes have been used since around the 1800s. They are composed of cotton, elastic filaments and adhesive glue that provides an effect of tactile and mechanical stimulation. However, as taping has evolved, manufacturers have implemented new materials and claim that the tensile properties and adhesion of tapes contribute more significantly in the rehabilitation process...
March 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28092639/lithographic-patterning-of-antibodies-by-direct-lift-off-and-improved-surface-adhesion
#14
Sankalp Verma, Vivek Verma
The inherent property of antibodies binding to their antigen with high specificity makes them a strong candidate for sensing and detection applications. Microscale patterning of antibodies is desired for the miniaturization of sensors and fundamental cell biology studies. However, existing methodologies to pattern antibodies at the microscale are multi-step. In this work, we demonstrate microscale patterning of antibodies on a glass coverslip in a single step photolithography process. The microscale features of the photoresist were generated on the coverslip using photolithography, and the antibody solution was incubated...
January 16, 2017: Biofabrication
https://www.readbyqxmd.com/read/28079363/fluorescence-development-of-latent-fingerprint-with-conjugated-polymer-nanoparticles-in-aqueous-colloidal-solution
#15
Hong Chen, Rong-Liang Ma, Yun Chen, Li-Juan Fan
Poly(p-phenylenevinylene) (PPV) nanoparticles in aqueous colloidal solution have been prepared via a modified Wessling method, with the addition of surfactant. The fluorescent colloidal solution was used as the developing solution to develop the fingerprints on different substrates. The developing process was accomplished simply by immersing the substrates into developing solution and then taking out, followed by rinsing with deionized water. The initial study about the fingerprints on the adhesive tapes showed that the developing solution is very effective in fluorescence development on both fresh and aged visible fingerprints; and such an effect was negligibly affected by treating the fingerprints with water or other organic solvents, whether before developing or after...
January 24, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28068108/transferability-and-adhesion-of-sol-gel-derived-crystalline-tio2-thin-films-to-different-types-of-plastic-substrates
#16
Natsumi Amano, Mitsuru Takahashi, Hiroaki Uchiyama, Hiromitsu Kozuka
Anatase thin films were prepared on various plastic substrates by our recently developed sol-gel transfer technique. Polycarbonate (PC), poly(methyl methacrylate) (PMMA), polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polyether ether ketone (PEEK), and polyvinylidene chloride (PVDC) were employed as plastic substrates. A Si(100) substrate was first coated with a polyimide (PI)/polyvinylpyrrolidone (PVP) mixture layer, and an alkoxide-derived titania gel film was deposited on it by spin-coating...
January 20, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28058144/failed-mask-ventilation-due-to-air-leakage-around-the-orbit-in-a-patient-with-a-history-of-radical-maxillofacial-surgery-with-orbital-exenteration
#17
Reiko Horishita, Kenji Kayashima
A 72-year-old male (height: 160 cm, weight: 53 kg) was scheduled to undergo left renal and male with ans uterine tract resection. The patient had previously undergone right radical maxillofacial surgery with orbital exenteration 14 years before the present operation to treat squamous cell carcinoma of the right maxillary sinus, with tumour invasion to the orbital floor. An anaesthesiologist encountered difficulty in performing mask ventilation during the induction of anaesthesia in the patient, despite a good mask fit on the face, because the adhesive tape around the orbit had moved...
December 2016: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/28029265/biomimetic-bubble-repellent-tubes-microdimple-arrays-enhance-repellency-of-bubbles-inside-of-tubes
#18
Jun Kamei, Hiroya Abe, Hiroshi Yabu
The adhesion of bubbles underwater remains the greatest cause of malfunctions in applications such as microfluidics, medical devices, and heat exchangers. Recently, the combination of oxidization and peeling the top layer of self-organized honeycomb films with an adhesive tape resulted in the formation of an ultra-bubble-repellent and pillared polymer surface structure. However, the fabrication of honeycomb films on the inner surface of tubes and the formation of structured hydrophilic textures by peeling the top layer of honeycomb films still remain problematic...
January 5, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/27988563/-i-coendutermes-i-i-tucum-i-fontes-isoptera-termitidae-nasutitermitinae-description-of-the-imago-caste-and-additional-notes
#19
Carolina Cuezzo
Coendutermes Fontes, 1985 is a monotypic South American termite genus. Coendutermes tucum Fontes, 1985, was described based on morphological characters from soldiers and workers collected in Mato Grosso, Brazil, and Jodensavanne, Suriname. Herein, I describe the imago caste of C. tucum for the first time with additional notes on soldiers, workers, and new distributional records. The studied material is deposited at the Museu de Zoologia da Universidade de São Paulo, São Paulo, Brazil (MZUSP). I use the terminology of Fontes (1987) to describe worker mandibles, and that of Noirot (2001) for the different parts of the digestive tube of workers...
December 9, 2016: Zootaxa
https://www.readbyqxmd.com/read/27966367/novel-sio2-h2ti2o5%C3%A2-h2o-nanochain-composite-with-high-uv-visible-photocatalytic-activity-for-supertransparent-multifunctional-thin-films
#20
Lin Yao, Junhui He, Tong Li, Tingting Ren
In the current work, a peroxo titanium complex (PTC) solution was used as a novel water-soluble precursor to fabricate H2Ti2O5·H2O and the SiO2/H2Ti2O5·H2O-nanochain composite at low temperature (90-100 °C). The average width of H2Ti2O5·H2O nanochains is 4.5 ± 1.5 nm. Under full-spectrum irradiation, the Si/Ti-nanochain composite showed good UV-visible light absorption and excellent photocatalytic activity, which is 2.8 times that of P25. In the composite, SiO2 not only contributes to the formation of nanochains and improves the catalytic performance of H2Ti2O5·H2O but also reduces the refractive index of the complex...
December 27, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
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