keyword
MENU ▼
Read by QxMD icon Read
search

Surface ablation

keyword
https://www.readbyqxmd.com/read/28628998/a-facile-fabrication-of-silk-mos2-hybrids-for-photothermal-therapy
#1
Zhao Li, Yuhong Yang, Jinrong Yao, Zhengzhong Shao, Xin Chen
Photothermal therapy, due to its safety and effectiveness, has attracted tremendous interest in the area of cancer treatment in recent few decades. The emerging of two-dimensional transition metal dichalcogenides has provided this promising therapy with a novel genus of nanomaterials. Herein, we present a facile one-step way to prepare a hybrid of regenerated silk fibroin (RSF) and molybdenum disulfide (MoS2) nanosheets simply by directly adding MoS2 dispersion into RSF aqueous solution to induce the self-assembly of silk protein on the surface of MoS2 flakes...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28628822/spatial-distribution-of-trace-element-ca-normalized-ratios-in-primary-and-permanent-human-tooth-enamel
#2
Théo Tacail, Lenka Kovačiková, Jaroslav Brůžek, Vincent Balter
The trace elements distribution embedded in tooth enamel offers a means to study exposure of toxic metals and allows the reconstruction of dietary behaviors. The quantification of most of the elements with a spatial high resolution (~50μm) is routinely achieved using laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS). However, the lack of a comprehensive framework of trace elements distribution in enamel jeopardizes any endorsed sampling strategy using LA-ICPMS. The present work is an effort to improve our knowledge on this issue...
June 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28618498/magnetohydrodynamics-of-laser-produced-high-energy-density-plasma-in-a-strong-external-magnetic-field
#3
Kazuki Matsuo, Hideo Nagatomo, Zhe Zhang, Philippe Nicolai, Takayoshi Sano, Shohei Sakata, Sadaoki Kojima, Seung Ho Lee, King Fai Farley Law, Yasunobu Arikawa, Youichi Sakawa, Taichi Morita, Yasuhiro Kuramitsu, Shinsuke Fujioka, Hiroshi Azechi
Recent progress in the generation in the laboratory of a strong (>100-T) magnetic field enables us to investigate experimentally unexplored magnetohydrodynamics phenomena of a high-energy-density plasma, which an external magnetic field of 200-300 T notably affects due to anisotropic thermal conduction, even when the magnetic field pressure is much lower than the plasma pressure. The external magnetic field reduces electron thermal conduction across the external magnetic field lines because the Larmor radius of the thermal electrons in the external magnetic field is much shorter than the mean free path of the thermal electrons...
May 2017: Physical Review. E
https://www.readbyqxmd.com/read/28616953/universal-liquid-phase-laser-fabrication-of-various-nano-metals-encapsulated-by-ultrathin-carbon-shells-for-deep-uv-plasmonics
#4
Miao Yu, Chao Yang, Xiao-Ming Li, Tian-Yu Lei, Hao-Xuan Sun, Li-Ping Dai, Yu Gu, Xue Ning, Ting Zhou, Chao Wang, Hai-Bo Zeng, Jie Xiong
The exploration of localized surface plasmon resonance (LSPR) beyond the usual visible waveband, for example within the ultraviolet (UV) or deep-ultraviolet (D-UV) regions, is of great significance due to its unique applications in secret communications and optics. However, it is still challenging to universally synthesize the corresponding metal nanostructures due to their high activity. Herein, we report a universal, eco-friendly, facile and rapid synthesis of various nano-metals encapsulated by ultrathin carbon shells, significantly with a remarkable deep-UV LSPR characteristic, via a liquid-phase laser fabrication method...
June 15, 2017: Nanoscale
https://www.readbyqxmd.com/read/28605524/prevalence-and-predictors-of-low-voltage-zones-in-the-left-atrium-in-patients-with-atrial-fibrillation
#5
Yan Huo, Thomas Gaspar, Matthias Pohl, Judith Sitzy, Utz Richter, Sebastian Neudeck, Julia Mayer, Mads Brix Kronborg, Christopher Piorkowski
Aims: To describe the extent and distribution of low voltage zones (LVZ) in a large cohort of patients undergoing ablation for paroxysmal and persistent atrial fibrillation (AF), and to explore baseline predictors of LVZ in these patients. Methods and results: Consecutive patients who underwent a bipolar voltage map guided AF ablation, were enrolled. Voltage maps were conducted for each patient using 3-dimensional electroanatomical mapping system and LVZ were defined as areas of bipolar voltage < 0...
June 10, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28605185/soft-matter-printed-circuit-board-with-uv-laser-micropatterning
#6
Tong Lu, Eric Markvicka, Yichu Jin, Carmel Majidi
When encapsulated in elastomer, micropatterned traces of Ga-based liquid metal (LM) can function as elastically deformable circuit wiring that provides mechanically robust electrical connectivity between solid state elements (e.g. transistors, processors, sensor nodes). However, LM-microelectronics integration is currently limited by challenges in rapid fabrication of LM circuits and the creation of vias between circuit terminals and the I/O pins of packaged electronics. In this study we address both with a unique layup for soft-matter electronics in which traces of liquid-phase Ga-In eutectic (EGaIn) are patterned with UV laser micromachining (UVLM)...
June 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28604166/the-effects-of-grooming-on-a-copper-ablative-coating-a-six-year-study
#7
Melissa Tribou, Geoffrey Swain
More than 90% of US Navy Ships are coated with copper ablative paint. These ships may spend long periods of time pier-side, which makes them vulnerable to fouling. Hull grooming has been proposed as a means of maintaining the coatings in an operational condition. This study investigated the effect of grooming on a copper ablative coating exposed statically for six years. Grooming was performed weekly or monthly with controls left ungroomed. The fouling community was visually assessed, dry film thickness measurements were taken to monitor coating loss, and the copper leaching rates were measured...
July 2017: Biofouling
https://www.readbyqxmd.com/read/28604147/nak-alloy-induced-in-vivo-tumor-ablation-therapy
#8
Wei Wang, Ying Liu, Huan Liu, Yonghui An, Qian Wang, Jing Liu
PURPOSE: Alkali metal ablation is newly emerging as an effective, economic and minimally invasive ablation therapy. This study is dedicated to demonstrate the high efficiency of NaK alloy ablation on in vivo tumors with different stages in mice. MATERIAL AND METHODS: Panc02 tumor cells were injected into 21 female C57B/L mice, which were divided into three groups. Two experimental groups of mice received the same percutaneous NaK alloy injection for a week apart...
June 12, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28591507/-regarding-surface-ablation-as-an-ethically-superior-option-when-compared-to-lasik-primum-non-nocere
#9
Kepa Balparda
Refractive surgery is an extremely safe surgical intervention, with excellent profiles of clinical improvement and satisfaction. The ethical responsibility of the refractive surgeon is to look for diminishing the patients' exposure to unnecessary risks. Therefore, surface ablation would be a preferable option over LASIK as the former has a better safety profile than the latter, without compromising final visual acuity. Ethically, surface ablation should be considered as the first choice in those patients undergoing Excimer laser refractive surgery...
July 2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28589929/type-2-innate-lymphoid-cells-control-the-development-of-atherosclerosis-in-mice
#10
Stephen A Newland, Sarajo Mohanta, Marc Clément, Soraya Taleb, Jennifer A Walker, Meritxell Nus, Andrew P Sage, Changjun Yin, Desheng Hu, Lauren L Kitt, Alison J Finigan, Hans-Reimer Rodewald, Christoph J Binder, Andrew N J McKenzie, Andreas J Habenicht, Ziad Mallat
Type-2 innate lymphoid cells (ILC2) are a prominent source of type II cytokines and are found constitutively at mucosal surfaces and in visceral adipose tissue. Despite their role in limiting obesity, how ILC2s respond to high fat feeding is poorly understood, and their direct influence on the development of atherosclerosis has not been explored. Here, we show that ILC2 are present in para-aortic adipose tissue and lymph nodes and display an inflammatory-like phenotype atypical of adipose resident ILC2. High fat feeding alters both the number of ILC2 and their type II cytokine production...
June 7, 2017: Nature Communications
https://www.readbyqxmd.com/read/28588014/different-approaches-for-catheter-ablation-of-para-hisian-accessory-pathways-implications-for-mapping-and-ablation
#11
Ming Liang, Zulu Wang, Yanchun Liang, Guitang Yang, Zhiqing Jin, Mingyu Sun, Yaling Han
BACKGROUND: Catheter ablation of para-Hisian accessory pathways (APs) can be challenging because of adjacent conduction tissue. Some different approaches for ablation, including the inferior vena cava approach (IVC-A), the noncoronary cusp approach (NCC-A), or the superior vena cava approach (SVC-A), have been reported. However, when should para-Hisian APs be mapped and ablated by the IVC-A, NCC-A, or SVC-A is not well established. METHODS AND RESULTS: This study included 55 consecutive patients (mean age, 53±11 years, 36 males) with para-Hisian APs...
June 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28586103/minimal-configuration-of-body-surface-potential-mapping-for-discrimination-of-left-versus-right-dominant-frequencies-during-atrial-fibrillation
#12
M Rodrigo, A M Climent, A Liberos, F Fernández-Aviles, F Atienza, M S Guillem, O Berenfeld
BACKGROUND: Ablation of drivers maintaining Atrial Fibrillation (AF) has been demonstrated as an effective therapy. Drivers in the form of rapidly-activated atrial regions can be non-invasively localized to either left or right atria (LA, RA) with Body Surface Potential Mapping (BSPM) systems. This study quantifies the accuracy of Dominant Frequency (DF) measurements from reduced-leads BSPM systems and assesses the minimal configuration required for ablation guidance. METHODS: Nine uniformly distributed lead sets of 8 to 66 electrodes were evaluated...
June 6, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28585685/pulmonary-artery-a-pivotal-site-for-catheter-ablation-in-idiopathic-rvot-ventricular-arrhythmias
#13
REVIEW
Chunmiao Wang, Yawen Zhang, Fangde Hong, Ying Huang
In patients without associated myocardial diseases, characterized by left bundle branch block (LBBB) and inferior axis morphologies, repetitive idiopathic right ventricular tachycardias (VTs) and ventricular premature contractions (VPCs) typically arise from right ventricular outflow tract (RVOT). Accumulated evidences have shown that radiofrequency catheter ablation (RFCA) is a useful treatment for patients with RVOT ventricular arrhythmias (VAs). Interestingly, several medical centers have showed that pulmonary artery (PA) is a potential novel site for catheter ablation in RVOT-like VAs, particularly in patients where termination of RVOT VAs at the usual site fails...
June 6, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28585085/surface-enhanced-raman-scattering-sers-imaging-guided-real-time-photothermal-ablation-of-target-cancer-cells-using-polydopamine-encapsulated-gold-nanorods-as-multifunctional-agents
#14
Changlong Sun, Mingxia Gao, Xiangmin Zhang
In this study, we developed a novel "see-and-treat" theranostic system named "surface-enhanced Raman scattering (SERS) imaging-guided real-time photothermal therapy" for accurate cancer detection and real-time cancer cell ablation using the same Raman laser. Facilely synthesized polydopamine-encapsulated gold nanorods (AuNRs), which possess excellent biocompatibility and enhanced stability, were used as multifunctional agents. Under near-infrared (NIR) laser irradiation, polydopamine-encapsulated AuNRs show strong SERS effect and high photothermal conversion efficiency simultaneously...
June 6, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28584473/laser-micro-etching-of-metal-prostheses-for-personal-identification
#15
Dhanraj Ganapathy, Vinay Sivaswamy, Prathap Sekhar
Denture marking techniques play a vital role in establishing personal identification in suitable clinical and forensic situations. The denture marking techniques are categorized broadly into additive and ablative methods. Additive methods involve embedding or impregnation of markers for establishing personal identity. Ablative methods involve partial removal of the denture surface thereby providing a marking for identification. Engraving and etching methods are the commonly used ablative methods. Ablative methods can be of contact and noncontact subtypes...
January 2017: Journal of Forensic Dental Sciences
https://www.readbyqxmd.com/read/28580979/design-of-tpgs-functionalized-cu3bis3-nanocrystals-with-strong-absorption-in-the-second-near-infrared-window-for-radiation-therapy-enhancement
#16
Jiangfeng Du, Xiaopeng Zheng, Yuan Yong, Jie Yu, Xinghua Dong, Chenyang Zhang, Ruyi Zhou, Bai Li, Liang Yan, Chunying Chen, Zhanjun Gu, Yuliang Zhao
Integrating radiation therapy with high-depth photothermal therapy in the second near-infrared (NIR) window is highly required for efficient treatment of deep-seated tumor cells. Here, we constructed a multifunctional nano-theranostic with bimetallic chalcogenide nanocrystals (NCs) functionalized with amphiphilic d-α-tocopherol polyethylene glycol 1000 succinate (TPGS-Cu3BiS3). Benefiting from the strong absorbance of both X-ray and NIR light in the second NIR window, TPGS-Cu3BiS3 CNs can not only deposit more radiation dose to trigger enhanced radiation damage in vivo, but also conduct photo-induced hyperthermia for thermal ablation in the second NIR window and effective improvement of tumor oxygenation to overcome the hypoxia-associated radio-resistance of tumors...
June 5, 2017: Nanoscale
https://www.readbyqxmd.com/read/28562582/the-b-cell-receptor-controls-fitness-of-myc-driven-lymphoma-cells-via-gsk3%C3%AE-inhibition
#17
Gabriele Varano, Simon Raffel, Martina Sormani, Federica Zanardi, Silvia Lonardi, Christin Zasada, Laura Perucho, Valentina Petrocelli, Andrea Haake, Albert K Lee, Mattia Bugatti, Ulrike Paul, Eelco Van Anken, Laura Pasqualucci, Raul Rabadan, Reiner Siebert, Stefan Kempa, Maurilio Ponzoni, Fabio Facchetti, Klaus Rajewsky, Stefano Casola
Similar to resting mature B cells, where the B-cell antigen receptor (BCR) controls cellular survival, surface BCR expression is conserved in most mature B-cell lymphomas. The identification of activating BCR mutations and the growth disadvantage upon BCR knockdown of cells of certain lymphoma entities has led to the view that BCR signalling is required for tumour cell survival. Consequently, the BCR signalling machinery has become an established target in the therapy of B-cell malignancies. Here we study the effects of BCR ablation on MYC-driven mouse B-cell lymphomas and compare them with observations in human Burkitt lymphoma...
June 8, 2017: Nature
https://www.readbyqxmd.com/read/28561825/indocyanine-green-loaded-gold-nanostars-for-sensitive-sers-imaging-and-subcellular-monitoring-of-photothermal-therapy
#18
Jing Chen, Zonghai Sheng, Penghui Li, Manxiang Wu, Nisi Zhang, Xue-Feng Yu, Yuanwen Wang, Dehong Hu, Hairong Zheng, Guo Ping Wang
We have demonstrated that a typical nanothermometer was incorporated in a bovine serum albumin stabilized gold nanostar-indocyanine green (denoted as GNS-ICG-BSA) nanoprobe to realize surface-enhanced Raman scattering (SERS) imaging-based real-time sensitive monitoring of intracellular temperature in photothermal therapy (PTT), which significantly improved the spatial resolution compared to infrared thermal imaging. Herein, an exogenous thermosensitive molecule, ICG, acting as a tri-functional agent, was selected as the Raman reporter instead of direct cellular biochemical changes...
May 31, 2017: Nanoscale
https://www.readbyqxmd.com/read/28559090/the-effect-of-air-removal-with-extracorporeal-balloon-inflation-on-the-incidence-of-asymptomatic-cerebral-embolism-during-cryoballoon-ablation-of-atrial-fibrillation
#19
Michifumi Tokuda, Seiichiro Matsuo, Mika Kato, Hidenori Sato, Hirotsuna Oseto, Eri Okajima, Hidetsugu Ikewaki, Ryota Isogai, Kenichi Tokutake, Kenichi Yokoyama, Ryohsuke Narui, Shin-Ichi Tanigawa, Seigo Yamashita, Keiichi Inada, Michihiro Yoshimura, Teiichi Yamane
BACKGROUND: An asymptomatic cerebral embolism (ACE) is sometimes detected after cryoballoon ablation of atrial fibrillation (AF). The removal of air bubbles from the cryoballoon prior to utilization may reduce the rate of ACE. OBJECTIVE: This study aims to compare the incidence of ACE between a conventional and novel balloon massaging method during cryoballoon ablation. METHODS: Of 175 consecutive patients undergoing initial cryoballoon ablation for paroxysmal AF, 60 patients underwent a novel balloon massaging with extracorporeal balloon inflation in saline water (Group N) before the cryoballoon was inserted into the body...
May 27, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28551145/a-magnetic-polypyrrole-iron-oxide-core-gold-shell-nanocomposite-for-multimodal-imaging-and-photothermal-cancer-therapy
#20
Lu Han, Yang Zhang, Yue Zhang, Yang Shu, Xu-Wei Chen, Jian-Hua Wang
For the purpose of improving the diagnosis and enhancing the photothermal therapeutic effect for cancer under near-infrared (NIR) laser irradiation, a novel magnetic therapeutic platform containing dual photothermal agents, polypyrrole (PPy) and gold nanoshell, is constructed. The nanostructure is composed of a magnetic PPy/Fe3O4-core and a gold nanoshell, which is capable of enhancing the contrast for both magnetic resonance (MR) and X-ray computed tomography (CT) imaging. By attaching Raman probes onto the surface of gold shell, the nanocomposites exhibit the potential to serve as surface-enhanced Raman scattering (SERS) active substrates for optical modality identification of cancer cell...
August 15, 2017: Talanta
keyword
keyword
59593
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"