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#mesh #sieve #permeability #permeable barrier #filtration

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#permeability #water infiltration #material science #flow through #brick voids #seepage

🧱<->⚛️

#ion channel #cell membrane #transmembrane protein #ion transport #permeability #lipid bilayer

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#ion channel #ion selectivity #permeability #pore #ion transport #cell membrane #concentration gradient