Sahand University of Technology

A microfluidic vacuum-pressure-driven device for liquid viscosity measurement

Abstract A vacuum-driven microfluidic viscometer is proposed for measuring dynamic viscosity using only 6 µL of sample. The device consists of a polymethyl methacrylate (PMMA) microchannel with a rectangular cross-section of 200 μm × 450 μm and a total length of 26 cm, connected...

Antibiotic-directed polymerization enables tunable antibacterial polydopamine coatings

Polydopamine (PDA) is a nature-inspired coating material due to its strong adhesion, excellent biocompatibility, and rich surface chemistry; however, pure PDA generally exhibits limited intrinsic antibacterial activity. In this study, PDA coatings containing structurally distinct...

Low-level laser irradiation stimulated tumoricidal impacts and dose-dependent modulation of Wnt signaling in three-dimensional human colorectal cancer microspheres

The high incidence of colorectal cancer (CRC) has been a big challenge in human medicine. Along with several available therapies, specific modalities, e.g., low-level laser irradiation (LLLI), have been introduced to achieve proper regenerative outcomes. Unfortunately, most studi...

Efficient Hydrogen Evolution Enabled by a Noble‐Metal‐Free NiTiCu Thin‐Film Metallic Glass Electrocatalyst

Hydrogen is a promising green alternative to fossil fuels. However, the scarcity and high cost of platinum group metals pose a major economic challenge to the large‐scale production of hydrogen. To address this issue, we investigated a novel, noble‐metal‐free NiTiCu thin‐film met...

Investigation of the effect of natural micro cork particles on the creep behavior of thick shear adhesive joints

Today, the adoption of adhesive joints in structural design has advanced significantly, enabling designers and researchers to create structures that not only enjoy long lifespans but also perform flawlessly throughout their service. One critical area of investigation is the creep...

A combined workflow using geology, petrophysics, and geomechanics to locate productive zones and ideal fracture networks

A complete reservoir evaluation requires studying both petrophysical and mechanical rock properties. Accordingly, Well logs are widely used in the oil industry to determine key parameters and locate high-production zones. This study presents an integrated workflow using Formation...