Tuning the photocurrent generations from photosystem I assembled in tailored biotic-abiotic interfaces

Abstract

Abstract

Green Catalysts: Applied and Synthetic Photosynthesis

“…While metal NPs may not directly expand optical cross-sections, enhancement of the photoelectrochemical activity of reaction centers, including PSI, should lead to improved photocurrent outputs of devices. The use of metal nanostructures, such as nanopyramids [18] and NPs have been suggested to enhance photochemical activity through plasmonic coupling, and further engineering to enhance interactions of this biotic-abiotic interface is likely to be studied for further biohybrid device improvement [19].…”

“…In addition to increased photosensitizer loading, increased contact with redox electrolytes is also achieved with 3D nanostructured semiconductor materials [25]. Some 3D structures utilized to date include TiO2 nanoparticles (NPs), nanotubes, nanopyramids, and inverse opal designs [26,27] [18,28].…”

A new platform for development of photosystem I based thin films with superior photocurrent: TCNQ charge transfer salts derived from ZIF-8

“…Such implemented constructs have included mesoporous electrodes, 20 hydrogels, 21 conductive polymers, [22][23][24] polymer micro-particles, 25 and DNA binders with complementary enzymes. 26 In recent years, a specically intriguing approach towards such efforts has been to conne PSI encapsulated in synthetic lipid membrane bilayers [27][28][29] that mimic the native PSI thylakoid membrane. To this end, our recent studies have shown considerable alterations in the photochemical and optical responses along with signicant photocurrent enhancements due to the lipid bilayer mediated PSI microenvironment alterations.…”

“…To this end, our recent studies have shown considerable alterations in the photochemical and optical responses along with signicant photocurrent enhancements due to the lipid bilayer mediated PSI microenvironment alterations. 28,30,31 Thus, whether by introducing more favorable redox steps, greater functional surface area, or more complete conduction pathways, such efforts have continuously pushed the frontiers of biohybrid photovoltaics or photochemical energy conversion routes.…”

Jolly green MOF: confinement and photoactivation of photosystem I in a metal–organic framework

“…25 More recently, the PSI research community has increasingly turned its attention towards the design of tailored structural microenvironments when incorporating PSI into bio-hybrid materials. Reconstituting PSI into organic or inorganic frameworks including lipid bilayers 26,27 that mimic the native thylakoid membrane has shed light on how microenvironment alterations in the structural scaffold of PSI might affect the coherent or incoherent energy transfer of the chlorophyll network. 28 Here we propose the next step of incorporating PSI into a unique metal-organic framework to investigate these connement effects.…”