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Bài giảng Các chỉ số sinh học thai nhi
Các chỉ số sinh trắc học thai nhi Chỉ số sinh học tuổi thai – Xác định tuổi thai Chỉ số sinh học phát triển – Sàng lọc các bất thường phát triển thai – Ước lượng cân nặng thai Chỉ số sinh học các tạng – Sàng lọc một vài dị dạng thai
81 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 779 | Lượt tải: 0
High acetone-sensing performance of bi-phase a-/g-Fe₂O₃ submicron flowers grown using an iron plate
Iron oxide nanostructures have been studied extensively because of their excellent magnetic, optical, electrical, and catalytic properties. This work introduces a simple process to synthesize directly bi-phase a-/g-Fe2O3 submicron flowers on a Fe foil in NH4OH. The flowers were assembled by using many nanoplates with an estimated thickness of 20...
6 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 341 | Lượt tải: 0
Fabrication of an injectable acellular adipose matrix for soft tissue regeneration
The acellular adipose matrix (AAM) represents a promising source of biomaterial for applications in soft tissue regeneration. In this study, we aimed to prepare an injectable AAM to serve as a ready-to-use allograft. A fabrication procedure including harvesting, delipidating, and decellularizing was established. Accordingly, we proposed a mechani...
10 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 411 | Lượt tải: 0
Applied electric field analysis and numerical investigations of the continuous cell separation in a dielectrophoresis-based microfluidic channel
Dielectrophoresis (DEP) is known as an attractive and frugal technique to manipulate biological particles in microfluidics. This study presents the advanced solution strategy of a DEP-based microfluidic channel for focusing and separating cancerous cells in continuous flow. Theoretical calculations were carried out to define the favorable parame...
8 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 727 | Lượt tải: 0
Q-switched pulsed laser direct writing of aluminum surface micro/nanostructure for triboelectric performance enhancement
The micro/nano surface structure of triboelectric layers possesses a critical impact on the performance of triboelectric nanogenerators (TENG). Here, we present a solution for the enhancement of the triboelectric performance by utilizing a Q-switched Pulsed Laser (QSL) that directly writes on an Aluminum surface in the net configuration. The cri...
8 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 507 | Lượt tải: 0
Excellent photocatalytic activity of ternary Ag@WO3@rGO nanocomposites under solar simulation irradiation
The ternary nanocomposite of Ag@WO3@rGO was synthesized via a two-step hydrothermal method in which the binary composite of the Ag-doped WO3 (Ag@WO3) prepared by the 1st hydrothermal step was combined with the reduced graphene oxide (rGO) via the ultrasonic-assisted 2nd hydrothermal step. The composition with Ag and rGO helped to reduce the opti...
10 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 318 | Lượt tải: 0
Excellent organic dye adsorption capacity and recyclability of hydrothermally synthesized a-Fe₂O₃ nanoplates and nanorices
a-Fe2O3 and Fe3O4 nanoplates and nanorices were synthesized by hydrothermal reaction and used for organic pollutant adsorption and removal studies. The effect of size and morphology of a-Fe2O3 and Fe3O4 nanoplates and nanorices on the dye adsorption efficiency were investigated systematically. The adsorption studies showed a good selectivity and...
9 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 399 | Lượt tải: 0
In situ synthesis of hybrid zinc oxide-silver nanoparticle arrays as a powerful active platform for surface-enhanced Raman scattering detection
Micro-structured molecular semiconductor film-based surface-enhanced Raman scattering (SERS) probes are an important analytical tool for both fundamental and technological research. This study proposed a novel zinc oxide (ZnO)-based, three-dimensional (3D) semiconductor nanoflower (NF) superstructure probe with unique physicochemical properties, ...
11 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 369 | Lượt tải: 0
Constructing g-C₃N₄/SnO₂ S-scheme heterojunctions for efficient photocatalytic NO removal and low NO₂ generation
The facile fabrication of g-C3N4/SnO2 S-scheme heterojunctions for photocatalytic removal of NO under visible light is reported. Optical and electrochemical investigations indicate the formation of these heterojunctions that enable bending at the interface of g-C3N4 and SnO2 and give rise to an efficient separation. A high photocatalytic 500-ppb...
9 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 476 | Lượt tải: 0
A hierarchical porous aerogel nanocomposite of graphene/NiCo₂S₄ as an active electrode material for supercapacitors
A three-dimensional reduced graphene oxide/nickel-cobalt sulfide (RGO/NiCo2S4) aerogel was fabricated by an efficient and facile one-step hydrothermal approach. The NiCo2S4 needle-like structure consisted of many small nanoparticles well attached to the surface of the RGO sheet. The prepared aerogel had high porosity and conductivity. As an acti...
9 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 834 | Lượt tải: 0