Results 81 to 90 of about 622,597 (277)

Kidney Stone Dissolution By Tetherless, Enzyme‐Loaded, Soft Magnetic Miniature Robots

Advanced Healthcare Materials, EarlyView.
Wireless magnetic robots are developed for kidney stone dissolution. The robots navigate through a urinary tract model from bladder and ureter to renal pelvis with the help of external magnetic fields. The filaments are loaded with urease enzyme which catalyzes urea to carbon dioxide and ammonia, thereby increasing pH to basic regime and supporting ...
Afarin Khabbazian, Lauren Kwong, Aaron Lewis, Erica Liu, Noura Abdelrazec, Anna C. Bakenecker, Nil Fontanals, Guillem Lopez, Samuel Sánchez, Juan Manuel Lopez, Brian Carrillo, Monica Farcas, Chris Kallweit, Alfred C. H. Yu, Mir Behrad Khamesee, Veronika Magdanz   +15 more
wiley   +1 more source

Covalent Binding of Dexamethasone to Polyimide Improves Biocompatibility of Neural Implantable Devices

Advanced Healthcare Materials, EarlyView.
The covalent binding of dexamethasone to the surface of polyimide represents the electrically inert part of implantable intraneural devices. This ensures a sustained release of the drug for 9 weeks. In vitro and in vivo tests confirm the reduction of the foreign body reactions and the improved biocompatibility of dexamethasone functionalized polyimide.
Giulia Turrin, Jose Crugeiras, Chiara Bisquoli, Davide Barboni, Martina Catani, Bruno Rodríguez‐Meana, Rita Boaretto, Michele Albicini, Stefano Caramori, Claudio Trapella, Thomas Stieglitz, Yara Baslan, Hanna Karlsson‐Fernberg, Fernanda L. Narvaez‐Chicaiza, Edoardo Marchini, Alberto Cavazzini, Ruben López‐Vales, Maria Asplund, Xavier Navarro, Stefano Carli   +19 more
wiley   +1 more source

The Effect of the Amount and Type of Liquid Intake on Kidney Calculi: A Case-Control Study

مجله اپیدمیولوژی ایران, 2015
Background & Objectives: Urinary calculi are a common problem worldwide. The pattern of fluid consumption in healthy people and patients with renal calculi is not totally clear. The aim of this study was to determine the association between the amount of
F Moghaddas, F Yousefi, F Bagheri, M Mohammadi, F Mahdian Arefi, A Beikmohammadi, MH Emamian   +6 more
doaj  

Advanced Multipurpose Spectroscopic Nanobio‐Device for Concurrent Lab‐on‐a‐Chip Label‐Free Separation and Detection of Extracellular Vesicles as Key‐Biomarkers for Point‐of‐Care Cardiovascular Disease Diagnostics

Advanced Healthcare Materials, EarlyView.
AIMSPec‐LoC is a novel lab‐on‐a‐chip platform integrating size‐based extracellular vesicle (EVs) separation with label‐free Raman spectroscopy and AI‐powered classification via SKiNET. This high‐throughput, portable system enables real‐time, multiplexed molecular fingerprinting of EVs from biofluids, offering transformative potential for early, non ...
Emma Buchan, Jonathan James Stanley Rickard, Mark Robert Thomas, Pola Goldberg Oppenheimer   +3 more
wiley   +1 more source

The association of benign prostatic hyperplasia with lower urinary tract stones in adult men: A retrospective multicenter study

Asian Journal of Urology, 2018
Objective: To examine the relationship between benign prostatic hyperplasia (BPH) and the presence of lower urinary tract stones. Methods: We retrospectively reviewed the records of men with lower urinary tract stones who presented to three clinical ...
Jae Hung Jung, Jinsung Park, Won Tae Kim, Hong Wook Kim, Hyung Joon Kim, Sungwoo Hong, Hee Jo Yang, Hong Chung   +7 more
doaj  

Predicting the chemical composition of urinary calculi in vivo using gray scale ultrasound

BMC Urology
Objective The purpose of this study was to preliminarily predict the chemical composition of urinary calculi using ultrasound in vivo. Methods The data of 267 urinary calculi patients were analyzed retrospectively, including non-contrast computed ...
Ningning Liu, Jing Li
doaj   +1 more source

Clinical advantages of suctioning flexible ureteroscopy with intelligent pressure control on treating large upper urinary tract calculi

Frontiers in Surgery
Suctioning Flexible Ureteroscopy with Intelligent Pressure Control (SFUI) has the advantage of automatically capturing and breaking urinary tract calculi while maintaining renal pelvic pressure stability.
Weiping Cai, Bin Zheng, Xinwei Li, Xingjian Gao, Zedong Zhang, Yijin Lu, Hualong Zhao, Junhong You, Gangfeng Zheng, Weilong Bao, Yutong Lai, Yisong Lv   +11 more
doaj   +1 more source

Histotripsy erosion of model urinary calculi.

Journal of endourology, 2011
BACKGROUND AND PURPOSE Histotripsy is a pulsed focused ultrasound technology in which initiation and control of acoustic cavitation allow for precise mechanical fractionation of tissues. The present study examines the feasibility of using histotripsy for
A. Duryea, T. Hall, A. Maxwell, Zhen Xu, C. Cain, W. Roberts   +5 more
semanticscholar   +1 more source

Microphysiological Systems for Comorbidity Studies: Chronic Kidney Disease and Osteoarthritis

Advanced Healthcare Materials, EarlyView.
This review highlights the potential of organ‐on‐a‐chip systems for studying comorbidities, using chronic kidney disease (CKD) and osteoarthritis (OA) as examples. It summarizes recent advances in kidney‐on‐a‐chip and joint‐on‐a‐chip models and discusses their current and potential application in investigating CKD, OA, and CKD‐OA comorbidity, aiming to
Mingying Han, Weiping Lin, Yuanxiong Cao, Patricia Murray, Bettina Wilm, Stephen J McWilliam, Jude Curran, Ruoxiao Xie   +7 more
wiley   +1 more source

Acute urinary retention in women due to urethral calculi: A rare case.

Canadian Urological Association journal = Journal de l'Association des urologues du Canada, 2014
We present a case of a 51-year-old woman with acute urinary retention caused by a urethral calculus. Urethral calculi in women are extremely rare and are usually formed in association with underlying genitourinary pathology.
R. Turo, M. Smolski, M. Kujawa, S. Brown, R. Brough, G. N. Collins   +5 more
semanticscholar   +1 more source