Results 141 to 150 of about 191,200 (355)

3D‐Printed Unibody Microfluidic Devices for Organ‐on‐Chip Applications

open access: yesAdvanced Materials Technologies, EarlyView.
A practical approach is demonstrated to 3D printing unibody microfluidic Organ‐on‐Chip (OoC) devices using commercial resins and desktop DLP printers. The demonstrated functional devices support 2D monolayers, 3D spheroids, and barrier tissues. With optimised design and post‐processing techniques, leak‐free, biocompatible microchannels and membranes ...
Louis Jun Ye Ong   +8 more
wiley   +1 more source

Controlled Air Gap Formation between W and TiO2 Films via Sub‐Surface TiO2 Atomic Layer Etching

open access: yesAdvanced Materials Technologies, EarlyView.
Delivering SiH4 and WF6 to a lined array of TiO2 films produces a thin film of tungsten while simultaneously, the underlying TiO2 is removed. When the W‐coated TiO2 structure is exposed to further etching cycles after deposition, TiO2 etching continues vertically and laterally, creating a self‐supported W structure and a vacant air gap.
Hannah R. M. Margavio   +6 more
wiley   +1 more source

Surface‐Mounted Metal‐Organic Framework for the Adsorption and Sensing of Monoaromatic Pollutants in Water Using Quartz Crystal Microbalance

open access: yesAdvanced Materials Technologies, EarlyView.
A hydrophobic metal‐organic framework (UHMOF‐100) is grown on a quartz crystal microbalance sensor for the first time. The device enables real‐time, selective detection of monoaromatic BTEX pollutants in water, demonstrating a new strategy for creating robust chemical sensors for challenging environmental monitoring applications. Abstract Environmental
Per Reichert   +7 more
wiley   +1 more source

Atrioventricular heart valves of indigenous cattle (bos indicus): the morphology and morphometry [PDF]

open access: yesEurasian Journal of Veterinary Sciences
Aim: The aim of the study was to detect the gross morphology and measurement of the length of chordae tendineae of bovine atrioventricular heart valves for future bioprosthesis.
Md. Nazrul Islam   +3 more
doaj  

Heart Sounds in Patients with Homograft Replacement of the Mitral Valve [PDF]

open access: bronze, 1970
Ralph E. Gianelly   +2 more
openalex   +1 more source

Programmable Microscale Actuation of Hydrogels With Tunable Response via Printing on Particles

open access: yesAdvanced Materials Technologies, EarlyView.
We fabricate microscale hydrogels with precisely tunable phase transition temperatures (23–60 °C) by particle‐templated two‐photon polymerization using chemically tailored inks. Multi‐material printing enables stepwise thermal actuation through sequential volume changes at distinct VPTTs, while pH‐dependent hysteresis drives anisotropic actuation with ...
Xueting Shen   +4 more
wiley   +1 more source

Estudo multicêntrico dos resultados das trocas valvares com o uso da bioprótese Biocor no Estado de Minas Gerais Multicentric study of the results with implanted bioprosthesis Biocor in the state of Minas Gerais

open access: yesBrazilian Journal of Cardiovascular Surgery, 1988
No período de março de 1981 a março de 1988, foram implantadas 2324 biopróteses, em 2016 pacientes, em 5 Centros do Estado de Minas Gerais. Este estudo inclui somente a análise dos pacientes submetidos a troca valvar aórtica (n = 603) e mitral ( n = 1110)
Mário Osvaldo Vrandecic   +23 more
doaj  

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