ideal copolymerideal tubular reactoridle speedimage analyzerimagingimmiscibleimmunoanalysisimmunodominantimmunoelectrodeimmunogenicityimmunoprecipitationimmunoreactionimpactimpact energyimpact resistanceimpact resistance modifierimpact strengthimpact testimperfect foldsimpermeableimplantimplantationimpregnateimpregnationimpressionimpulsein plane shearin plane shear modulusin position costin situin situ polymerizationin vitroin vivoinactivatingincident lightincident light microscopeincinerationincluded angleincompressibleinconsistentincremental differenceincubation periodindentationindexindicatorindoorsindotherminducation weldinginduceinduced ploling