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https://www.readbyqxmd.com/read/29224083/electron-transfer-between-enzymes-and-electrodes
#1
Tanja Vidakovic-Koch
Efficient electron transfer between redox enzymes and electrocatalytic surfaces plays a significant role in development of novel energy conversion devices as well as novel reactors for production of commodities and fine chemicals. Major application examples are related to enzymatic fuel cells and electroenzymatic reactors, as well as enzymatic biosensors. The two former applications are still at the level of proof-of-concept, partly due to the low efficiency and obstacles to electron transfer between enzymes and electrodes...
December 10, 2017: Advances in Biochemical Engineering/biotechnology
https://www.readbyqxmd.com/read/29224067/multiplexed-targeted-sequencing-for-oxford-nanopore-minion-a-detailed-library-preparation-procedure
#2
Timokratis Karamitros, Gkikas Magiorkinis
MinION is a small form factor sequencer recently retailed by Oxford Nanopore technologies. This lighter-sized USB3.0-interfaced device uses innovative nanotechnology to generate extra-long reads from libraries prepared using only standard molecular biology lab equipment. The flexibility and the portability of the platform makes it ideal for point-of-interest and real-time surveillance applications. However, MinION's limited capacity is not enough for the study of specific targets within larger genomes. Apart from just PCR-amplifying regions of interest, the capture of long reads spanning the edges of known-unknown genomic regions is of great importance for structural studies, such as the identification of mobile elements' integrations sites, bridging over low complexity repetitive regions etc...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29224059/lower-complication-rate-and-faster-return-to-sports-in-patients-with-acute-syndesmotic-rupture-treated-with-a-new-knotless-suture-button-device
#3
Christian Colcuc, Marc Blank, Thomas Stein, Florian Raimann, Sanjay Weber-Spickschen, Sebastian Fischer, Reinhard Hoffmann
PURPOSE: Suture button devices for tibiofibular syndesmosis injuries provide semirigid dynamic stabilization, but complications including knot irritation have been reported. No randomized trials of the new knotless suture button devices have been performed. We hypothesized that knotless suture button devices eliminate knot irritation and facilitate quicker return to sports. This study was performed to compare the clinical outcomes, complication rates, and time to return to sports between a new knotless suture button device and syndesmotic screw fixation...
December 9, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29224054/lesion-characteristics-and-procedural-outcomes-of-re-attempted-percutaneous-coronary-interventions-for-chronic-total-occlusion
#4
Masaki Tanabe, Kenji Kodama, Kohei Asada, Takeo Kunitomo
This study was performed to investigate lesion characteristics and procedural outcomes of re-attempted percutaneous coronary intervention (PCI) for chronic total occlusion (CTO). Prior failure of percutaneous revascularization of CTO has been identified as an independent predictor of failure at subsequent attempts. However, procedural outcomes of re-attempted PCI for CTO have not been elucidated. We evaluated lesion characteristics and procedural outcomes in 310 consecutive patients undergoing CTO-PCI, and compared the results between re-attempted (n = 59) and initial procedures (n = 251)...
December 9, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/29224039/state-of-the-art-lasers-and-light-treatments-for-vascular-lesions-from-red-faces-to-vascular-malformations
#5
Manuel Valdebran, Brent Martin, Kristen M Kelly
Notable milestones in the treatment of vascular lesions have been achieved over the past century. Many cutaneous vascular lesions can be successfully treated with lightbased devices. In this review, we will discuss the treatment of port-wine birthmarks, lymphatic malformations, infantile hemangiomas, rosacea, venous lakes, pyogenic granulomas, cherry angiomas, and angiofibromas using lasers, total reflection amplification of spontaneous emission of radiation, intense pulsed light, and photodynamic therapy. In addition, for several of these diagnoses, we will review medical therapies that can be combined with light-based devices to provide enhanced results...
December 2017: Seminars in Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/29224038/skin-tightening-does-it-really-exist
#6
Monica Boen, Monique J Vanaman Wilson, Sabrina Fabi
Skin tightening is one of the cornerstones of skin rejuvenation and is defined as the improvement of skin laxity and crepiness of the skin. There are several energy-based devices that can produce significant skin tightening without surgery, both on and off the face. The mechanisms of skin tightening involve collagen denaturation resulting in collagen shrinkage and tissue tightening, and the wound healing response that generates new collagen and elastin. These hypothesized mechanisms of skin contraction leading to clinical skin tightening have been derived from histological, immunohistochemical, and electron microscope analysis, as well as in vitro and in vivo experiments...
December 2017: Seminars in Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/29224034/noninvasive-body-contouring
#7
Nicole Y Lee, Deanne Mraz Robinson
In a society where stigma surrounds cosmetic procedures and yet a thin and sculpted physique is idealized, noninvasive body contouring satisfies the demand to reduce excess and undesired body fat in areas that persist despite exercise and diet. Numerous devices are available to meet this need; however, choosing the "perfect" device is challenging because the science and data are often limited with variable results. In this paper, we review 7 US Food and Drug Administration-approved noninvasive body contouring therapies in hopes of providing some clarity to this area...
December 2017: Seminars in Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/29224031/short-pulsed-laser-for-the-treatment-of-tattoos-pigmented-lesions-scars-and-rejuvenation
#8
Emil A Tanghetti, Kristina Andrea Hoffmann, Klaus Hoffmann
This review describes the use of picosecond lasers for the treatment of tattoos, pigmented lesions, scars, and their use in rejuvenation. These devices have delivered enhanced efficacy for the treatment of tattoos and pigmented lesions when compared to the older 40-50 nanosecond devices. The fractional delivery with the picosecond devices have opened up a new method of rejuvenation for photodamaged skin and the treatment of scars. The delivery of these high-energy short pulses have created zones of injury in the skin referred to as areas of laser-induced optical breakdown...
December 2017: Seminars in Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/29224030/advances-in-fractional-technology-for-skin-rejuvenation-skin-tightening-drug-delivery-and-treating-scars-and-skin-defects
#9
Deirdre Connolly, Laura Schilling, Nazanin Saedi
The development of fractional photothermolysis has revolutionized the treatment of skin scarring, rejuvenation, and tightening. By creating targeted microthermal zones and leaving surrounding tissue intact, this concept has provided the field with efficacious results, with less downtime and a better safety profile. This has started to change the paradigm of what is considered first-line treatment for scarring and rejuvenation. While originally applied to nonablative lasers, fractionation has now been employed in ablative, quality-switched, picosecond, and novel hybrid fractional lasers...
December 2017: Seminars in Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/29224029/lasers-lights-and-energy-devices-state-of-the-art-introduction
#10
Omer Ibrahim, Jeffrey S Dover, Kenneth A Arndt
No abstract text is available yet for this article.
December 2017: Seminars in Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/29223999/two-years-follow-up-of-patients-with-abnormal-uterine-bleeding-after-insertion-of-the-levonorgestrel-releasing-intrauterine-system
#11
Numan Cim, Sunullah Soysal, Sena Sayan, Begum Yildizhan, Erbil Karaman, Orkun Cetin, Harun Egemen Tolunay, Recep Yildizhan
AIM: To evaluate the efficacy and safety of levonorgestrel-releasing intrauterine system (LNG-IUS) in the long-term treatment of heavy menstrual blood loss in women unrelated to intrauterine pathology. METHODS: One hundred and six parous women aged 33-48 years with recurrent heavy menstrual bleeding (HMB) participated in this study. The women were followed up for 24 months and were assessed for intensity of bleeding both for pre- and post-insertion periods. An LNG-IUS was inserted in each patient within 7 days of the start of menstrual flow...
December 8, 2017: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/29223891/fallen-leaves-derived-honeycomb-like-porous-carbon-as-a-metal-free-and-low-cost-counter-electrode-for-dye-sensitized-solar-cells-with-excellent-tri-iodide-reduction
#12
Sung Min Cha, Goli Nagaraju, S Chandra Sekhar, L Krishna Bharat, Jae Su Yu
Utilizing carbon-based counter electrodes (CEs) in dye-sensitized solar cells (DSSCs) have received much attention in recent times, owing to their low cost, good electrochemical activity, natural abundance and eco-friendly nature. Herein, we have facilely prepared quince leaves derived porous carbon (QLPC) using fallen quince leaves (QLs) and it was used as a cost-effective CE for the fabrication of DSSCs. By means of alkali treatment and pyrolysis process (at different temperatures of 700, 800 and 900 °C), the QLs powder undergoes chemical activation and carbonization, which results in a honeycomb-like QLPC with abundant micro/mesopores and large surface area...
December 2, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29223889/from-dead-leaves-to-sustainable-organic-resistive-switching-memory
#13
Bai Sun, Shouhui Zhu, Shuangsuo Mao, Pingping Zheng, Yudong Xia, Feng Yang, Ming Lei, Yong Zhao
An environmental-friendly, sustainable, pollution-free, biodegradable, flexible and wearable electronic device hold advanced potential applications. Here, an organic resistive switching memory device with Ag/Leaves/Ti/PET structure on a flexible polyethylene terephthalate (PET) substrate was fabricated for the first time. We observed an obvious resistive switching memory characteristic with large switching resistance ratio and stable cycle performance at room temperature. This work demonstrates that leaves, a useless waste, can be properly treated to make useful devices...
December 5, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29223845/seeing-is-believing-a-call-for-routine-early-postoperative-hemodynamic-transesophageal-echocardiography-monitoring-after-left-ventricular-assist-device-implantation
#14
EDITORIAL
Juan N Pulido
No abstract text is available yet for this article.
November 22, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29223726/computed-tomography-measurement-of-the-left-atrial-appendage-for-optimal-sizing-of-the-watchman-device
#15
Bo Xu, Jorge Betancor, Kimi Sato, Serge Harb, Karim Abdur Rehman, Kunal Patel, Arnav Kumar, Paul C Cremer, Wael Jaber, L Leonardo Rodriguez, Paul Schoenhagen, Oussama Wazni
INTRODUCTION: Percutaneous left atrial appendage (LAA) occlusion is an emerging treatment option for patients with non-valvular atrial fibrillation who cannot tolerate oral anticoagulation. The Watchman device (Boston Scientific Corporation, Natick, MA, USA) is deployed at the ostium of the LAA, and an appropriately sized device is critical for successful occlusion. However, standardized imaging protocols for device sizing have not been established. OBJECTIVES: We investigated the clinical utility of a standardized imaging protocol, with pre-procedural multi-detector cardiac computed tomography (MDCT), and intra-procedural transesophageal echocardiography (TEE), for Watchman device sizing...
December 5, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29223705/functional-hepatocyte-clusters-on-bioactive-blend-silk-matrices-towards-generating-bioartificial-liver-constructs
#16
Guru Janani, Samit K Nandi, Biman B Mandal
The creation of in vitro functional hepatic tissue simulating micro-environmental niche of native liver is a keen area of research due to its demand in bioartificial liver (BAL) and cell-based tissue engineering. Here, we investigated the potential of novel blend (BA) silk scaffold fabricated by blending mulberry (Bombyx mori, BM) silk fibroin with cell adhesion motif (RGD) rich non-mulberry (Antheraea assamensis, AA) silk fibroin in generating a functional liver construct. Three-dimensional (3D) porous silk scaffolds (BM, AA and BA) were physico-chemically characterized and functionally evaluated using human hepatocarcinoma cells (HepG2) and primary neonatal rat hepatocytes...
December 6, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29223702/rapid-and-highly-efficient-capture-and-release-of-cancer-cells-using-polymeric-microfibers-immobilized-with-enzyme-cleavable-peptides
#17
Akifumi Yoshihara, Ryota Sekine, Takayuki Ueki, Yasuhito Kondo, Yoshiyuki Sunaga, Tadashi Nakaji-Hirabayashi, Yuji Teramura, Madoka Takai
Circulating tumor cells (CTCs) are tumor cells present in the blood. CTCs have attracted much attention as a new tumor marker, because their analysis provides useful information for monitoring cancer progress. In this study, we developed cell-capture and release methods using three-dimensional (3D) microfiber fabrics without damaging the cells. Using functional peptides containing sequences from a polystyrene-binding site and a cleavable site for collagenase type IV, immobilized antibodies on the peptides were able to specifically capture MCF-7 cells in a few minutes and release the captured cells from 3D microfiber fabrics incorporating a vacuum system...
December 6, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29223668/transumbilical-extracorporeal-laparoscopic-assisted-appendectomy
#18
Lindsey Perea, William H Peranteau, Pablo Laje
AIM OF THE STUDY: The perfect balance between safety, cosmesis, and cost effectiveness in a world with ever growing healthcare costs has yet to be found for nonperforated appendicitis. The aim is to present our data regarding safety and cost effectiveness of the transumbilical extracorporeal laparoscopic-assisted appendectomy technique. METHODS: A retrospective review was performed for all laparoscopic appendectomies for acute appendicitis from October 2014 to October 2016...
November 13, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29223621/does-observation-of-a-disabled-child-s-action-moderate-action-execution-implication-for-the-use-of-action-observation-therapy-for-patient-rehabilitation
#19
Marie Alsamour, Maxime Gilliaux, Anne Renders, Thierry Lejeune, Gaëtan Stoquart, Martin Gareth Edwards
BACKGROUND: Research investigating action observation-execution priming has mainly manipulated congruent versus incongruent action, and aspects of action expertise/capability. More specifically, the literature suggests enhanced performance priming following action observation by actors closely matched to participant expertise. The aim of the present study was to extend the understanding of action expertise effects by investigating action priming in healthy participants after observing a mild hemiparetic child actor versus a neurologically healthy child actor...
November 15, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/29223594/femoral-neck-fractures-after-removal-of-hardware-in-healed-trochanteric-fractures
#20
REVIEW
Antonio Barquet, Peter V Giannoudis, Andrés Gelink
INTRODUCTION: Hardware removal in healed trochanteric fractures (TF) in the absence of infection or significant mechanical complications is rarely indicated. However, in patients with persistent pain, prominent material and discomfort in the activities of daily living, the implant is eventually removed. Publications of ipsilateral femoral neck fracture after removal of implants from healed trochanteric fractures (FNFARIHTF) just because of pain or discomfort are rare. The purpose of this systematic review of the literature is to report on the eventual risk factors, the mechanisms, the clinical presentation, and frequency, and to pay special emphasis in their prevention...
December 2017: Injury
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