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Cell Stretching System

  • ShellPa
  • ShellPa


About Cell Stretching System

Our Cell Stretching Systems [ShellPa] and [ShellPa Pro] have been developed under close supervi sion by Prof. Keiji NARUSE, Department of Cardiovascular Physiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences.Prof. Naruse established a business venture, Strex Inc. and has been working through the research development for the cell culturing systems with mechanical stresses . The research achievement with over 20 years including the establishment of Strex Inc. has been taken over to Strex International, LLC that offers research development for laboratory equipment and medical devices based on the Mechanobiology, and the technologies are applied to our products.

What is the Mechanical Cell Stretch System?

When walking or running, the internal structure of the body experiences various mechanical stresses such as muscle movement, heart pulsation or skin tension while smiling. These mechanical stresses are closely related to cell proliferation and differentiation or tissue degeneration and development. Additionally, disease processes such as osteoporosis, cancer metastasis, skin disorders and muscle degeneration share a loss of tissue structure, integrity and mechanical transduction.The Mechanical Cell Stretch System, "ShellPa" is an instrument for cell culturing that has been developed in order to replicate a dynamic environment inside the human body.This system is pneumatically driven by an air compressor. It is expected that cell culturing under the mechanical stress provided by this system can bring more biologically and physiologically realistic cell responses compared to a conventional static cell culturing without mechanical stress.Moreover, the stretch frequency and stretch ratio (stretch pattern) are easily controllable, according to each experimental situation.The Stretch Chamber made with silicone (PDMS=polydimethylsiloxane) can be used for this system after being coated (e.g. fibronectin, collagen).

System Features

●Lightweight & compact(Installable to a laboratory incubator)
●Stretch frequency: 1-120 cycle(s)/min
●Stretch ratio: 2, 4, 5, 6, 8, 10, 12, 15 and 20%
●Stretch in a square wave pattern
●Workable with 6 stretch chamber at one time
●Removable stretch chambers holder
●Indication of accumulated operation time
●Timer function: set cyclic stretch-standstill time and the repetition number of times

Wave Pattern

Stretch Chamber

●High elasticity & restorative ability
●Material: silicone (PDMS=polydimethylsiloxane)
●Observable through its extremely-thin (0.4mm) & transparent base with a light microscope, fluorescence microscope, confocal laser scanning microscope

System Configuration

①Main Unit & Controller(Model No. : NNMS)
②Stretch Chamber
③Air Compressor(*JUN-AIR Model No. : 3-4 MC)*Recommended