Electrochemical behaviour of electrogenerated hydrophilic carbon nanomaterials

Hydrophilic Carbon Nanomaterials: Characterisation by Physical, Chemical, and Biological Assays

“…In region II, a set of three main contributions were measured, corresponding to the 2D band—a second‐order two‐phonon‐related mode—along with the D+G and D+D′ combined modes . The presence of these bands, along with the low/moderate intensity of the feature at 1557 cm −1 , reveals that the deposit is not completely amorphous, which is consistent with the detection by HRTEM of some crystalline nanoparticles.…”

“…Electrogenerated hydrophilic carbon (EHC) nanomaterials, recently developed in our group, might potentially emerge as materials that can overcome the above‐mentioned constraints . This type of nanomaterial, displaying outstanding solubility in water, is released from graphite in the early stages of a galvanostatic polarisation in a two‐compartment cell (Figure A), in a low‐cost, simple, green and fast procedure.…”

“…This type of nanomaterial, displaying outstanding solubility in water, is released from graphite in the early stages of a galvanostatic polarisation in a two‐compartment cell (Figure A), in a low‐cost, simple, green and fast procedure. The first EHC material was synthesised in a phosphate buffer, but other biocompatible electrolyte buffers were also tested, revealing that the redox properties of EHC nanomaterials can be tuned by the nature of the electrolyte . For example, EHC synthesised in phosphate buffer showed no relevant electron‐donating ability, whereas the nanomaterial generated in citrate buffer exhibited strong electron‐donating properties, typical of an antioxidant.…”

“…Electrogenerated hydrophilic carbon (EHC) nanomaterials, recently developedi no ur group, might potentially emerge as materials that can overcome the above-mentioned constraints. [26][27][28][29] This type of nanomaterial, displaying outstanding solubility in water,i sr eleased from graphite in the early stages of ag alvanostatic polarisation in at wo-compartment cell (Figure 1A), in al ow-cost,s imple, green and fast procedure. The first EHC material was synthesised in ap hosphate buffer, [26][27][28] but other biocompatiblee lectrolyte buffers were also tested, revealing that the redox properties of EHC nanomaterials can be tuned by the nature of the electrolyte.…”

“…[26][27][28][29] This type of nanomaterial, displaying outstanding solubility in water,i sr eleased from graphite in the early stages of ag alvanostatic polarisation in at wo-compartment cell (Figure 1A), in al ow-cost,s imple, green and fast procedure. The first EHC material was synthesised in ap hosphate buffer, [26][27][28] but other biocompatiblee lectrolyte buffers were also tested, revealing that the redox properties of EHC nanomaterials can be tuned by the nature of the electrolyte. [29] For example, EHC synthesised in phosphate buffer showedn or elevant electron-donating ability,w hereas the nanomaterial generated in citrate buffer exhibited stronge lectron-donating properties, typical of an antioxidant.H ence, motivated by the challenge of developing therapeutic approaches for diseases associated with oxidative stress, [30] the EHC nanomaterial synthesised in citrate was selected ( Figure 1B), and its biological behaviour with respect to its antioxidant activity and ability to protect neuronal cells against toxic agentsw as investigated in this study.…”