Development of Electrochemical Microbial Biosensor for Ethanol Based onAspergillus niger

Cyclic Voltammetric Measurements of Growth of Aspergillus terreus

“…From the plot, it could be concluded that the electrochemical methodology adopted in this work could clearly show all the four phases of the growth, namely the lag, log stationary and the decline phases. It is worthy to mention that earlier authors have reported a similar trend for the microbial species of (Yeast) Saccharomyces cerevisiae 29 (Fresh water ciliate) Tetrahymena shangaiensis, 30 Aspergillus niger 31 and Fusarium solani. 32 The conventional growth curve could easily be obtained for the bacterial stains, whereas it is more cumbersome in the case of fungi, as the colony counting can not be used.…”

“…28 There are many reports on electrochemical behavior of live cells. Recent research has demonstrated that the live microbes, T. shangaiensis S. cerevisiae, A. niger and F. solani, [29][30][31][32] could be monitored using cyclic voltammetry (CV). Studies on the acidification of living cells to their environment as the response of cells to a variety of chemical substances have been done.…”

2,4-Toluene Diamines—Their Carcinogenicity, Biodegradation, Analytical Techniques and an Approach towards Development of Biosensors

“…This review would give broad ideas for researchers who are working on amines and related compounds. From our own experience with biodegradation and development of microbial biosensors for various compounds, [58][59][60][61] we conclude that, even for complex chemicals like TDA, it is worth the attempt to try developing microbial sensors. Isolation of microbes from the substrate-contaminated soil would open up new opportunities of research.…”

Amperometric Biochemical Characterization of Isolated Fungal Strains

“…Fusarium oxysporum and Aspergillus niger were able to assimilate malic acid, but only weak signals were obtained by these two fungi confirming low levels of assimilation. Fusarium solani, and Aspergillus niger showed good responses to acetic acid and alcohol, respectively, and hence they were successfully exploited for the development of microbial sensors [24,25]. Table 3 presents the response for inhibitory concentrations of selected heavy metals and antibiotics.…”

“…We have endorsed the fact that biochemical characterization of microbes through rapid electrochemical methods using the amperometric principles is both sensitive and fast with an added advantage of its ability of quantitative registration at very low signals. Based on selective assimilation of the organisms, a potential organism for development of specific sensor could also be screened for further study, for example, Fusarium solani, and Aspergillus niger showed good responses to acetic acid and alcohol, respectively, and hence they were successfully exploited for the development of microbial sensors [24,25]. These results could be used to compare different strains, mutant transformants of one and the same species.…”