Evolution and self-assembly of protocells.
نویسنده
چکیده
Cells define the minimal building blocks of life. How cellular life emerged and evolved implies to cross the boundary between living and nonliving matter. Here we explore this problem by presenting several relevant components of the whole picture involving chemistry, physics and natural selection. Available evidence suggests that the basic logic of life can be understood and eventually translated into synthetic forms of cellular life. A simple, physically sound model of information-free protocell replication suggests that the basic logic of how to couple metabolism and container can be more relevant than the specific set of parameters used, thus indicating that the emergence of cells might have been easier than we would expect.
منابع مشابه
Effect of Temperature and Reaction Time on the Morphology and Phase Evolution of Self-assembled Cu7.2S4 Nanospheres Obtained from Nanoparticles and Nanorods Synthesized by Solvothermal Method
In this research, self-assembled copper sulfide nanospheres were synthesized by the solvothermal method and the effects of reaction parameters, including reaction time and reaction temperature on the morphology and phase evolution of copper sulfide nanostructures were investigated. For the identification of copper sulfide nanostructures, X-ray diffraction (XRD), infrared spectroscopy (FT-IR), f...
متن کاملPrebiotic Organic Microstructures as Model Protocells
A variety of prebiotic syntheses starting from reduced and gas precursors, or small reactive organic intermediates produce a variety of micron and sub-micron sized organic microstructures, including spheres, filaments and toroids. Many of these structures are hollow, and they display dynamic and reversible self-assembly. We report here some of their physical characteristics that might be compat...
متن کاملEngineering Protocells: Prospects for Self-Assembly and Nanoscale Production-Lines
The increasing ease of producing nucleic acids and proteins to specification offers potential for design and fabrication of artificial synthetic "organisms" with a myriad of possible capabilities. The prospects for these synthetic organisms are significant, with potential applications in diverse fields including synthesis of pharmaceuticals, sources of renewable fuel and environmental cleanup. ...
متن کاملPreliminary Steps toward Artificial Protocell Computation
Protocells are hypothesised as a transitional phase in the origin of life, prior to the evolution of fully functional prokaryotic cells [1, 2]. The work reported here is being done in the context of the PACE1 project, which is investigating the fabrication of artificial protocells de novo. We consider here the important open question of whether or how articifial protocells (if or when they are ...
متن کاملFrom Vesicles to Protocells: The Roles of Amphiphilic Molecules
It is very challenging to construct protocells from molecular assemblies. An important step in this challenge is the achievement of vesicle dynamics that are relevant to cellular functions, such as membrane trafficking and self-reproduction, using amphiphilic molecules. Soft matter physics will play an important role in the development of vesicles that have these functions. Here, we show that s...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- The international journal of biochemistry & cell biology
دوره 41 2 شماره
صفحات -
تاریخ انتشار 2009