Corresponding energy levels of all materials used for CO2 reduction are presented in Fig. . As broad light harvesting is an important parameter for efficient solar fuel formation, we have recorded UV-Vis absorption spectra of POZ-M molecule (Fig. ) and POZ-M NRs with different charged surfactants (Fig. ). Both POZ-M(-) and POZ-M(+) NRs had similar absorption profiles extending up to 650 nm. Though minimal differences were observed in the absorption profile of POZ-M NRs with different surfactants, their photoluminescence quantum yields (PLQYs) varied to a larger extent. The PLQY of positively charged POZ-M(+) NRs was two times higher than the PLQY of POZ-M(-) NRs (PLQYPOZ-M(+) = 1.5 %, PLQYPOZ-M(-) = 0.7 %) which could be attributed to different degree of molecular packing and dissimilar chemical environments inside the NRs caused from different amphiphilic polymeric surfactants. The stronger photoluminescence also indicates that the excited molecules in POZ-M(+) are less deactivated as compared to that in POZ-M(-), which generally should be beneficial for photocatalysis, if we consider that the light generated excitons needs adequate lifetime to dissociate well at the interface between photosensitizer and redox mediator/catalyst. In all cases biohybrid assemblies of organic NRs and CODH were prepared as follows. CODH was injected into the solution of either POZ-M(-) NRs or POZ(+) NRs kept in a sealed vial under CO2 atmosphere inside the glovebox due to the O2-sensitivity of the enzyme. Surface ξ-potential studies revealed that under photocatalytic conditions (pH 5.7, under CO2 atmosphere), the net surface charge of POZ-M(-) NRs and POZ(+) NRs were +59 mV and -10 mV, while the net surface charge of CODH enzyme was -30 mV (theoretical isoelectric point, pI = 6.58). Anaerobic incubation with CODH resulted in the net surface charge change to 37 mV for POZ-M(+) NRs, and to -2 mV for POZ-M(-) NRs respectively (Fig. ).