Anna Yucknovsky

Nanopore-based sequence deconvolution of diverse glycosaminoglycans

Lemuel L. M. Szeto, Anna Yucknovsky, Daniel P. Cole, Hagan Bayley et autres

Abstract Glycosaminoglycan (GAG) polysaccharides play vital roles in animal physiology and disease 1 . Their diverse and intricate patterns of sulfation and epimerization endow them with an extensive potential to encode functional information 2,3 . GAG characterization, however, remains a formidable challenge …

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Photoacids and Photobases: Applications in Functional Dynamic Systems

Anna Yucknovsky, Nadav Amdursky

Abstract Brønsted photoacids and photobases are a unique class of molecules that undergo a major change in their p K a values between their ground and excited states, resulting in donating or accepting a proton, respectively, but only after light excitation. This …

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Photoacids and Photobases: Applications in Functional Dynamic Systems

Anna Yucknovsky, Nadav Amdursky

Abstract Brønsted photoacids and photobases are a unique class of molecules that undergo a major change in their p K a values between their ground and excited states, resulting in donating or accepting a proton, respectively, but only after light excitation. This …

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Proton diffusion on the surface of mixed lipid membranes highlights the role of membrane composition

Ambili Ramanthrikkovil Variyam, Mateusz Rzycki, Anna Yucknovsky, Alexei A. Stuchebrukhov et autres

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The interplay between proton diffusion across biological membranes and their biophysical properties highlights the role of defects in mixed lipid membranes

Ambili Ramanthrikkovil Variyam, Mateusz Rzycki, Anna Yucknovsky, Alexei A. Stuchebrukhov et autres

Abstract Proton circuits within biological membranes are at the heart of natural bioenergetic systems, whereas different biological membranes are characterized by different lipid compositions. In this study, we investigate how the composition of mixed lipid membranes influences the proton transfer (PT) properties …

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Light-Triggered Reversible Change in the Electronic Structure of MoO3 Nanosheets via an Excited-State Proton Transfer Mechanism

Yuval Gilad Barzilay, Anna Yucknovsky, Nadav Amdursky

High Resolution Image Download MS PowerPoint Slide Light is an attractive source of energy for regulating stimulus-responsive chemical systems. Here, we use light as a gating source to control the redox state, the localized surface plasmonic resonance (LSPR) peak, and the structure …

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Controlling pH‐Sensitive Chemical Reactions Pathways with Light ‐ a Tale of Two Photobases: an Arrhenius and a Brønsted

Anna Yucknovsky, Nadav Amdursky

Light-gated chemical reactions allow spatial and temporal control of chemical processes. Here, we suggest a new system for controlling pH-sensitive processes with light using two photobases of Arrhenius and Brønsted types. Only after light excitation do Arrhenius photobases undergo hydroxide ion dissociation, …

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Manipulating the electronic properties and structure of MoO3 nanosheets with light via an excited-state proton transfer mechanism

Yuval Gilad Barzilay, Anna Yucknovsky, Nadav Amdursky

Light is an attractive source of energy to regulate stimuli-responsive chemical systems, enabling control over chemical and physical processes. Here, we use light as a gating source to control the redox state, the formation of a localized surface plasmonic resonance (LSPR), and …

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A dual photobase system for directing the pathway of pH-sensitive chemical reactions with light

Anna Yucknovsky, Nadav Amdursky

Light-gated chemical reactions allow spatial and temporal control of chemical processes. Here, we suggest a new system for controlling pH-sensitive processes with light using two photobases of Arrhenius and Brønsted types. Only after light excitation do Arrhenius photobases undergo hydroxide ion dissociation, …

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Photocurrent Generation and Polarity Switching in Electrochemical Cells through Light‐induced Excited State Proton Transfer of Photoacids and Photobases**

Anna Yucknovsky, Yaniv Shlosberg, Noam Adir, Nadav Amdursky

Light is a common source of energy in sustainable technologies for photocurrent generation. To date, in such light-harvesting applications, the excited electrons generate the photocurrent. Here, we introduce a new mechanism for photocurrent generation that is based on excited state proton transfer …

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Photocurrent Generation and Polarity Switching in Electrochemical Cells through Light‐induced Excited State Proton Transfer of Photoacids and Photobases**

Anna Yucknovsky, Yaniv Shlosberg, Noam Adir, Nadav Amdursky

Abstract Light is a common source of energy in sustainable technologies for photocurrent generation. To date, in such light‐harvesting applications, the excited electrons generate the photocurrent. Here, we introduce a new mechanism for photocurrent generation that is based on excited state proton …

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Application of Super Photoacids in Controlling Dynamic Processes: Light-Triggering the Self-Propulsion of Oil Droplets

Anna Yucknovsky, Benjamin B. Rich, Sara Gutkin, Ambili Ramanthrikkovil Variyam et autres

The dynamic control of pH-responsive systems is at the heart of many natural and artificial processes. Here, we use photoacids, molecules that dissociate only in their excited state and transfer their proton to nearby proton acceptors, for the dynamic control of processes. …

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