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https://www.readbyqxmd.com/read/29457933/computer-guided-inferior-alveolar-nerve-lateralization-with-simultaneous-implant-placement-a-preliminary-report
#1
Mohamed Atef, Mohamed Mounir
Placement of Dental implants in the posterior mandibular alveolar ridges may become a challenging procedure due to limited bone height between the crest of the ridge and the inferior alveolar canal. The aim of this study was to introduce an innovative, less invasive, highly accurate and easy surgical technique of inferior alveolar nerve lateralization in the posterior deficient mandible using a special customized 3D-printed surgical guide in order to enhance the bone height for implant placement. This was a case series study included 7 patients with unilateral edentulous mandibular alveolar ridges...
February 19, 2018: Journal of Oral Implantology
https://www.readbyqxmd.com/read/29457446/roll-to-roll-printing-of-meter-scale-composite-transparent-electrodes-with-optimized-mechanical-and-optical-properties-for-photoelectronics
#2
Xiangchuan Meng, Xiaotian Hu, Xia Yang, Jingping Yin, Qingxia Wang, Liqiang Huang, Zoukangning Yu, Ting Hu, Licheng Tan, Weihua Zhou, Yiwang Chen
Flexible transparent electrodes (FTEs) are an indispensable component for flexible optoelectronic devices. In this work, the meter-scale composite transparent electrode (CTEs) composing of poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) and Ag-grid/PET with optimized mechanical and optical properties is demonstrated by slot-die roll-to-roll technique with solution printing method under a low cost (2.8 $ for per square meter), via control of the viscosity and surface energy of PEDOT:PSS ink as well as the printing parameters...
February 19, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29457442/-development-and-application-of-artificial-vertebral-body
#3
REVIEW
Jian-Tao Liu, Feng Zhang, Zheng-Chao Gao, Bin-Bin Niu, Yu-Huan Li, Xi-Jing He
Artificial vertebral body has achieved good results in treating spinal tumors, tuberculosis, fracture and other diseases. Currently, artificial vertebral body with variety of kinds and pros and cons, is generally divided into two types: fusion type and movable type. The former according to whether the height could be adjusted and strength of self-stability is divided into three types: support-fixed type, adjust-fixed type and self-fixed type. Whether the height of self-fixed type could be adjusted is dependent on structure of collar thread rotation...
December 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29457412/-linical-application-of-personalized-3d-printing-guided-template-of-intramedullary-lag-screw-insertion-on-lateral-superior-ramous-of-pubic
#4
Yi Zheng, Xin-Hua Yuan, Wei-Bin Wang, Qing-Song Fu, Qing-Jiang Pang
OBJECTIVE: To evaluate the efficacy and advantages of personalized 3D printing-guided template of lateral superior ramous of pubic intramedullary lag screw. METHODS: From July 2015 to December 2016, 20 patients with the superior and inferior ramous of pubis fracture were treated with lag screws placement. All the patients were divided into test group(with guided template) and control group(with general operation). There were 7 males and 3 females with an average age of (46...
October 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29456378/utilization-and-impact-of-electronic-and-print-media-on-the-patients-health-status-physicians-perspectives
#5
Sadia Shakeel, Shagufta Nesar, Najia Rahim, Wajiha Iffat, Hafiza Fouzia Ahmed, Mehwish Rizvi, Shazia Jamshed
Aims: Despite an increased popularity of print and electronic media applications, there is a paucity of data reflecting doctors' opinions regarding efficient utilization of these resources for the betterment of public health. Hence, this study aimed to investigate the perception of physicians toward the effect of electronic and print media on the health status of patients. Setting and Design: The current research is a cross-sectional study conducted from January 2015 to July 2015...
October 2017: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/29456375/assessment-of-queries-received-by-the-drug-information-center-at-king-saud-medical-city
#6
Dlal Abdulrahman Almazrou, Sheraz Ali, Jasser Ali Alzhrani
Background: The complexity of drug therapies has increased the need to evaluate the drug information scientifically. In this regard, the aim of drug information centers (DICs) is to promote rational use of drugs in a health-care setting. DI pharmacists play a vital role in providing the necessary and reliable information on drugs to promote the concept of rational drug use, eventually leading to a better patient outcome. The objective of the present study was to assess the drug-related queries received by the DIC at the King Saud Medical City (KSMC) from health-care professionals working in a large tertiary care setting...
October 2017: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/29455983/electrochemical-writing-on-edible-polysaccharide-films-for-intelligent-food-packaging
#7
Si Wu, Wenqi Wang, Kun Yan, Fuyuan Ding, Xiaowen Shi, Hongbing Deng, Yumin Du
Polysaccharide films used as intelligent food packaging possess the advantages of renewability, safety and biodegradability. Printing on the polysaccharidic food packaging is challenging due to the high demand for edible-ink and the need for a suitable printing technique. In this work, we propose an electrochemical method for writing on polysaccharide film. Unlike conventional printing, this electrochemical writing process relies on the pH responsive color change of anthocyanin embedded in the chitosan/agarose hydrogel...
April 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29455569/repetition-is-the-feature-behind-the-attentional-bias-for-recognizing-threatening-patterns
#8
Maryam Shabbir, Adelynn M Y Zon, Vivek Thuppil
Animals attend to what is relevant in order to behave in an effective manner and succeed in their environments. In several nonhuman species, there is an evolved bias for attending to patterns indicative of threats in the natural environment such as dangerous animals. Because skins of many dangerous animals are typically repetitive, we propose that repetition is the key feature enabling recognition of evolutionarily important threats. The current study consists of two experiments where we measured participants' reactions to pictures of male and female models wearing clothing of various repeating (leopard skin, snakeskin, and floral print) and nonrepeating (camouflage, shiny, and plain) patterns...
January 2018: Evolutionary Psychology: An International Journal of Evolutionary Approaches to Psychology and Behavior
https://www.readbyqxmd.com/read/29455027/electrochemical-detection-of-influenza-virus-h9n2-based-on-both-immunomagnetic-extraction-and-gold-catalysis-using-an-immobilization-free-screen-printed-carbon-microelectrode
#9
Maher Sayhi, Oussama Ouerghi, Kamel Belgacem, Marwa Arbi, Yudum Tepeli, Abdeljalil Ghram, Ülkü Anik, Lars Österlund, Dhafer Laouini, Mohamed Fethi Diouani
Influenza is a viral infectious disease considered as a source of many health problems and enormous socioeconomic disruptions. Conventional methods are inadequate for in-field detection of the virus and generally suffer from being laborious and time-consuming. Thus, studies aiming to develop effective alternatives to conventional methods are urgently needed. In this work, we developed an approach for the isolation and detection of influenza A virus subtype H9N2. For this aim, two specific influenza receptors were used...
February 7, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29454818/comprehensive-characterization-of-printed-circuit-boards-of-various-end-of-life-electrical-and-electronic-equipment-for-beneficiation-investigation
#10
Anshu Priya, Subrata Hait
Comprehensive characterization of printed circuit board (PCB) of end-of-life electrical and electronic equipment (EEE) is obligatory for prospective profitable beneficiation. In this study, beneficiation oriented comprehensive characterization of two brands of PCBs each of 16 end-of-life EEE was conducted in terms of their physicochemical characteristics with special emphasis on the content of 16 general elements, 2 precious metals and 15 rare earth elements (REEs). General elements and their highest weight percent composition found in different PCBs of the EEEs were Cu (23% in laptop), Al (6% in computer), Pb (15% in DVD player) and Ba (7% in TV)...
February 14, 2018: Waste Management
https://www.readbyqxmd.com/read/29454028/fabricating-3d-printed-orally-disintegrating-printlets-using-selective-laser-sintering
#11
Fabrizio Fina, Christine M Madla, Alvaro Goyanes, Jiaxin Zhang, Simon Gaisford, Abdul W Basit
Selective laser sintering (SLS) is a three-dimensional printing (3DP) technology employed to manufacture plastic, metallic or ceramic objects. The aim of this study was to demonstrate the feasibility of SLS to fabricating novel solid dosage forms with accelerated drug release properties, and with a view to create orally disintegrating formulations. Two polymers (hydroxypropyl methylcellulose (HPMC E5) and vinylpyrrolidone-vinyl acetate copolymer (Kollidon ® VA 64)) were separately mixed with 5% paracetamol (used as a model drug) and 3% Candurin ® gold sheen colorant; the powder mixes were subjected to SLS printing resulting in the manufacture of printlets (3DP tablets)...
February 14, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29453808/three-dimensional-printing-in-congenital-heart-disease-a-systematic-review
#12
REVIEW
Ivan Lau, Zhonghua Sun
Three-dimensional (3D) printing has shown great promise in medicine with increasing reports in congenital heart disease (CHD). This systematic review aims to analyse the main clinical applications and accuracy of 3D printing in CHD, as well as to provide an overview of the software tools, time and costs associated with the generation of 3D printed heart models. A search of different databases was conducted to identify studies investigating the application of 3D printing in CHD. Studies based on patient's medical imaging datasets were included for analysis, while reports on in vitro phantom or review articles were excluded from the analysis...
February 17, 2018: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/29453347/reversing-coffee-ring-effect-by-laser-induced-differential-evaporation
#13
Tony M Yen, Xin Fu, Tao Wei, Roshan U Nayak, Yuesong Shi, Yu-Hwa Lo
The coffee-ring effect, ubiquitously present in the drying process of aqueous droplets, impedes the performance of a myriad of applications involving precipitation of particle suspensions in evaporating liquids on solid surfaces, such as liquid biopsy combinational analysis, microarray fabrication, and ink-jet printing, to name a few. We invented the methodology of laser-induced differential evaporation to remove the coffee-ring effect. Without any additives to the liquid or any morphology modifications of the solid surface the liquid rests on, we have eliminated the coffee-ring effect by engineering the liquid evaporation profile with a CO 2 laser irradiating the apex of the droplets...
February 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29452946/time-responsive-osteogenic-niche-of-stem-cells-a-sequentially-triggered-dual-peptide-loaded-alginate-hybrid-system-for-promoting-cell-activity-and-osteo-differentiation
#14
Zuyuan Luo, Siqi Zhang, Jijia Pan, Rui Shi, Hao Liu, Yalin Lyu, Xiao Han, Yan Li, Yue Yang, Zhixiu Xu, Yi Sui, En Luo, Yuanyuan Zhang, Shicheng Wei
The efficacy of stem cell-based bone tissue engineering has been hampered by cell death and limited fate control. A smart cell culture system with the capability of sequentially delivering multiple factors in specific growth stages, like the mechanism of the natural extracellular matrix modulating tissue formation, is attractive for enhancing cell activity and controlling cell fate. Here, a bone forming peptide-1 (BFP-1)-laden mesoporous silica nanoparticles (pep@MSNs) incorporated adhesion peptide, containing the arginine-glycine-aspartic acid (RGD) domain, modified alginate hydrogel (RA) system (pep@MSNs-RA) was developed to promote the activity and stimulate osteo-differentiation of human mesenchymal stem cells (hMSCs) in sequence...
February 10, 2018: Biomaterials
https://www.readbyqxmd.com/read/29452869/three-dimensional-printer-aided-casting-of-soft-custom-silicone-boluses-scsbs-for-head-and-neck-radiation-therapy
#15
Tsuicheng Chiu, Jun Tan, Mathew Brenner, Xuejun Gu, Ming Yang, Kenneth Westover, Tobin Strom, David Sher, Steve Jiang, Bo Zhao
PURPOSE: Custom tissue compensators provide dosimetric advantages for treating superficial or complex anatomy, but currently available fabrication technology is expensive or impractical for most clinical operations and yields compensators that are difficult for patients to tolerate. We aimed to develop an inexpensive, clinically feasible workflow for generating patient-specific, soft, custom silicone boluses (SCSBs) for head-and-neck (HN) radiation therapy. METHODS AND MATERIALS: We developed a method using 3-dimensional printed parts for generating SCSBs for the treatment of HN cancers...
November 11, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29452866/intrapatient-study-comparing-3d-printed-bolus-versus-standard-vinyl-gel-sheet-bolus-for-postmastectomy-chest-wall-radiation-therapy
#16
James L Robar, Kathryn Moran, James Allan, James Clancey, Tami Joseph, Krista Chytyk-Praznik, R Lee MacDonald, John Lincoln, Parisa Sadeghi, Robert Rutledge
PURPOSE: This patient study evaluated the use of 3-dimensional (3D) printed bolus for chest wall radiation therapy compared with standard sheet bolus with regard to accuracy of fit, surface dose measured in vivo, and efficiency of patient setup. By alternating bolus type over the course of therapy, each patient served as her own control. METHODS AND MATERIALS: For 16 patients undergoing chest wall radiation therapy, a custom 5.0 mm thick bolus was designed based on the treatment planning computed tomography scan and 3D printed using polylactic acid...
December 24, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29452589/does-additional-support-provided-through-e-mail-or-sms-in-a-web-based-social-marketing-program-improve-children-s-food-consumption-a-randomized-controlled-trial
#17
Natalie Rangelov, Sara Della Bella, Pedro Marques-Vidal, L Suzanne Suggs
BACKGROUND: The FAN Social Marketing program was developed to improve dietary and physical activity habits of families with children in Ticino, Switzerland. The aim of this study was to examine if the effects of the program on children's food intake differed by intervention group. METHODS: Effects of the FAN program were tested through a Randomized Controlled Trial. The program lasted 8 weeks, during which participants received tailored communication about nutrition and physical activity...
February 16, 2018: Nutrition Journal
https://www.readbyqxmd.com/read/29452273/3d-bioprinted-functional-and-contractile-cardiac-tissue-constructs
#18
Zhan Wang, Sang Jin Lee, Heng-Jie Cheng, James J Yoo, Anthony Atala
Bioengineering of a functional cardiac tissue composed of primary cardiomyocytes has great potential for myocardial regeneration and in vitro tissue modeling. However, its applications remain limited because the cardiac tissue is a highly organized structure with unique physiologic, biomechanical, and electrical properties. In this study, we undertook a proof-of-concept study to develop a contractile cardiac tissue with cellular organization, uniformity, and scalability by using three-dimensional (3D) bioprinting strategy...
February 13, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29452105/label-free-electrochemical-aptasensor-for-detection-of-alpha-fetoprotein-based-on-afp-aptamer-and-thionin-reduced-graphene-oxide-gold-nanoparticles
#19
Guiyin Li, Shanshan Li, Zhihong Wang, Yewei Xue, Chenyang Dong, Junxiang Zeng, Yong Huang, Jintao Liang, Zhide Zhou
Sensitive and accurate detection of tumor markers is critical to early diagnosis, point-of-care and portable medical supervision. Alpha fetoprotein (AFP) is an important clinical tumor marker for hepatocellular carcinoma (HCC), and the concentration of AFP in human serum is related to the stage of HCC. In this paper, a label-free electrochemical aptasensor for AFP detection was fabricated using AFP-aptamer as the recognition molecule and thionin/reduced graphene oxide/gold nanoparticles (TH/RGO/Au NPs) as the sensor platform...
February 13, 2018: Analytical Biochemistry
https://www.readbyqxmd.com/read/29451572/3d-printed-scaffolds-with-gradient-porosity-based-on-a-cellulose-nanocrystal-hydrogel
#20
Sahar Sultan, Aji P Mathew
3-Dimensional (3D) printing provides a unique methodology for the customization of biomedical scaffolds with respect to size, shape, pore structure and pore orientation useful for tissue repair and regeneration. 3D printing was used to fabricate fully bio-based porous scaffolds of a double crosslinked interpenetrating polymer network (IPN) from a hydrogel ink of sodium alginate and gelatin (SA/G) reinforced with cellulose nanocrystals (CNCs). CNCs provided favorable rheological properties required for 3D printing...
February 16, 2018: Nanoscale
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