al ▁DNA ▁rep lication , ▁a ▁discovery ▁which ▁earned ▁him ▁a ▁US ▁pat ent . ▁Later , ▁he ▁studied ▁the ▁human ▁path og ens , ▁Hel ic ob acter ▁p yl ori ▁and ▁Pl as mod ium ▁fal ci par um ▁and ▁their ▁DNA ▁rep lication ▁and ▁cell ▁cycle ▁reg ulation . ▁He ▁also ▁worked ▁on ▁anti - mal arial ▁dru gs ▁and ▁proposed ▁Ac rif lav ine ▁as ▁an ▁anti - mal arial ▁agent , ▁which ▁has ▁also ▁been ▁pat ented ▁by ▁him . ▁His ▁work ▁has ▁identified ▁Pf G yr ase ▁for ▁P . ▁fal ci par um ▁and ▁H p D na B ▁hel ic ase ▁for ▁H . ▁p yl ori ▁as ▁targets ▁and ▁these ▁research es ▁are ▁reported ▁to ▁be ▁helpful ▁in ▁drug ▁discovery ▁efforts ▁for ▁G astr ic ▁ul cers , ▁G astr ic ▁ad en oc arc in omas ▁and ▁Mal aria . ▁D har ▁has ▁documented ▁his ▁research ▁by ▁way ▁of ▁a ▁number ▁of ▁articles ▁and ▁online ▁repositories ▁such ▁as ▁Pub Med ▁and ▁Pub fact s ▁have ▁listed ▁many ▁of ▁them . ▁He ▁has ▁contributed ▁chap ters ▁to ▁three ▁books ▁which ▁include ▁Ep igen et ics : ▁Development ▁and ▁D ise ase ▁by ▁T ap as ▁K umar ▁K und u . ▁He ▁is ▁associated ▁with ▁many ▁science ▁journ als ▁such ▁as ▁Journal ▁of ▁Bi ological ▁Chem istry , ▁M ole cular ▁Micro bi ology , ▁F E BS ▁Journal ▁and ▁Medical ▁Science ▁Mon itor ▁as ▁an ▁ad - h oc ▁rev iewer ▁and ▁has