Iron is an essential co-factor for cellular processes. In the immune system, it can activate macrophages and represents a potential therapeutic various diseases. To specifically deliver iron to macrophages, oxide nanoparticles are embedded in polymeric micelles of reactive polysarcosine-block-poly(S-ethylsulfonyl-l-cysteine). Upon surface functionalization via dihydrolipoic acid, cores act as c...

Abstract Background In an attempt to prove biological activity enhancement upon escalating the cellular uptake response through ligand and carrier-based via nanoframework, gallic acid was chosen be formulated into PLGA-based polymeric nanoparticles with iron oxide as theranostic agent. Results The pre-formulation studies like FTIR, DSC, XRD, TGA were carried out, which implies good compatibilit...

Quantum dots (QD) have unique electronic and optical properties promoting biotechnological advances. However, our understanding of the toxicological structure-activity relationships remains limited. This study aimed to determine the biological impact of varying nanomaterial surface chemistry by assessing the interaction of QD with either a negative (carboxyl), neutral (hexadecylamine; HDA) or p...

Guanidinium-rich scaffolds facilitate cellular translocation and delivery of bioactive cargos through biological barriers. Although impressive uptake has been demonstrated for nonoligomeric and nonpept(o)idic guanidinylated scaffolds in cell cultures and animal models, the fundamental understanding of these processes is lacking. Charge pairing and hydrogen bonding with cell surface counterparts...

herein, 1f2, an anti-her2 monoclonal antibody (mab), was covalently coupled to the surface of 5-fluorouracil (5-fu) loaded bovine serum albumin (bsa) nanoparticles. concerning two different crosslinkers for conjugation of 1f2, maleimide-poly (ethylene glycol)-succinimidyl carbonate (mal-peg5000-nhs) was selected due to its higher conjugation efficiency (23±4 %) obtained in comparison to n-succi...

abstract due to calcareous soil conditions, zinc deficiency is a yield limiting factor for wheat production in iran. one solution for this problem is the cultivation of zn-efficient wheat varieties. ten wheat cultivars (nine bread wheat and one durum wheat) with different tolerance to zn deficiency were studied in a greenhouse experiment. plants were treated with zn (10 mg zn kg-1 soil as znso4...