Space-time on a Seashell

Rapid Assembly Processes of Ordered Inorganic/organic Nanocomposites

The material of seashell nacre is of great interest to material scientists due to its superior mechanical properties and unique bio-compatibility. Natural seashell nacre consists of about 95% of aragonite (a mineral form of CaCO3) and a few percent of biological macromolecules; yet its work of fracture is about three orders of magnitude higher than its mineral constituency. The superior strengt...

ارزیابی رادیوگرافیکی ترمیم نقص استخوانی ران خرگوش با استفاده از اسکلت آهکی صدف دریای مازندران

Background and Purpose: Autograft is the best bone graft substitute, however, it has some limitations, so allograft with synthetic or natural materials has been advised to use for bone graft. In this study, Iranian Caspian seashell was used as a biocompatible natural material for radiological evaluation. lodgment of seashell in drilled defects of femur was compared in the treatment group (rab...

The Use of Seashell by-Products in Pervious Concrete Pavers

Pervious concrete is a green alternative to conventional pavements with minimal fine aggregate and a high void content. Pervious concrete allows water to infiltrate through the pavement, thereby reducing the runoff and the requirement for stormwater management systems. Seashell By-Products (SBP) are produced in an important quantity in France and are considered as waste. This work investigated ...

A Fluorescence-Quenching Platform based on Biomineralized Hydroxyapatite from Natural Seashell and Applied to Cancer Cell Detection

As a typical biomineral, hydroxyapatite (HAp) is widely applied in bone implants and other related fields. However, the inherent nature of HAp can potentially be altered through restricting its fabrication conditions. Here, HAp fabricated by a hydrothermal treatment of pieces of natural seashell is demonstrated to have the capability of fluorescence quenching. To the best of the author's knowle...

Multichroic bandpass seashell antenna with cold-electron bolometers for CMB measurements