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National Taiwan University of Science and Technology

4 ARTICLES PUBLISHED IN JoVE

Bioengineering

Analyzing Mixing Inhomogeneity in a Microfluidic Device by Microscale Schlieren Technique

¹Department of Mechanical Engineering, National Taiwan University, ²Department of Mechanical Engineering, National Taiwan University of Science and Technology

Herein, we describe a procedure that employs microscale schlieren technique to measure mixing inhomogeneity in a microfluidic device. Through calibration, distribution of concentration gradient can be derived from the micro-schlieren image.

Engineering

Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures

Ruei-San Chen¹, Chih-Che Tang², Wei-Chu Shen², Ying-Sheng Huang²

¹Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, ²Department of Electronic Engineering, National Taiwan University of Science and Technology

We describe the approaches for the device fabrication and electrical characterization of molybdenum diselenide (MoSe₂) layer semiconductor nanostructures with different thicknesses. In addition, the fabrication of ohmic contacts for MoSe₂-layer nanocrystals by the focused-ion beam deposition method using platinum (Pt) as a contact metal is described.

Chemistry

Synthesizing Sodium Tungstate and Sodium Molybdate Microcapsules via Bacterial Mineral Excretion

Pao-Hung Lin¹, Ying-Tang Huang², Fu-Wen Lin³

¹Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology, ²Department of Marine Biotechnology, National Kaohsiung Marine University, ³Institute of Applied English, National Taiwan Ocean University

This work presents a protocol for manufacture sodium tungstate and sodium molybdate microcapsules via bacteria and their corresponding nanoparticles.

Bioengineering

Wet-spinning-based Molding Process of Gelatin for Tissue Regeneration

Chia-Yu Wang¹, Dewi Sartika², Ding-Han Wang³, Po-Da Hong¹, Juin-Hong Cherng^2,4,5, Shu-Jen Chang^2,6, Cheng-Che Liu⁷, Yi-Wen Wang⁴, Sheng-Tang Wu⁸

¹Department of Materials Science and Engineering, National Taiwan University of Science and Technology, ²Laboratory of Adult Stem Cell and Tissue Regeneration, National Defense Medical Center, ³School of Dentistry, National Yang-Ming University, ⁴Department and Graduate Institute of Biology and Anatomy, National Defense Medical Center, ⁵Department of Gerontological Health Care, National Taipei University of Nursing and Health Sciences, ⁶Division of Rheumatology/Immunology/Allergy, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, ⁷Department of Physiology and Biophysics, Graduate Institute of Physiology, National Defense Medical Center, ⁸Division of Urology, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center

We developed and describe a protocol based on the wet spinning concept, for the construction of gelatin-based biomaterials used for the application of tissue engineering.