Project acronym 2D-CHEM
Project Two-Dimensional Chemistry towards New Graphene Derivatives
Researcher (PI) Michal Otyepka
Host Institution (HI) UNIVERZITA PALACKEHO V OLOMOUCI
Call Details Consolidator Grant (CoG), PE5, ERC-2015-CoG
Summary The suite of graphene’s unique properties and applications can be enormously enhanced by its functionalization. As non-covalently functionalized graphenes do not target all graphene’s properties and may suffer from limited stability, covalent functionalization represents a promising way for controlling graphene’s properties. To date, only a few well-defined graphene derivatives have been introduced. Among them, fluorographene (FG) stands out as a prominent member because of its easy synthesis and high stability. Being a perfluorinated hydrocarbon, FG was believed to be as unreactive as the two-dimensional counterpart perfluoropolyethylene (Teflon®). However, our recent experiments showed that FG is not chemically inert and can be used as a viable precursor for synthesizing graphene derivatives. This surprising behavior indicates that common textbook grade knowledge cannot blindly be applied to the chemistry of 2D materials. Further, there might be specific rules behind the chemistry of 2D materials, forming a new chemical discipline we tentatively call 2D chemistry. The main aim of the project is to explore, identify and apply the rules of 2D chemistry starting from FG. Using the knowledge gained of 2D chemistry, we will attempt to control the chemistry of various 2D materials aimed at preparing stable graphene derivatives with designed properties, e.g., 1-3 eV band gap, fluorescent properties, sustainable magnetic ordering and dispersability in polar media. The new graphene derivatives will be applied in sensing, imaging, magnetic delivery and catalysis and new emerging applications arising from the synergistic phenomena are expected. We envisage that new applications will be opened up that benefit from the 2D scaffold and tailored properties of the synthesized derivatives. The derivatives will be used for the synthesis of 3D hybrid materials by covalent linking of the 2D sheets joined with other organic and inorganic molecules, nanomaterials or biomacromolecules.
Summary
The suite of graphene’s unique properties and applications can be enormously enhanced by its functionalization. As non-covalently functionalized graphenes do not target all graphene’s properties and may suffer from limited stability, covalent functionalization represents a promising way for controlling graphene’s properties. To date, only a few well-defined graphene derivatives have been introduced. Among them, fluorographene (FG) stands out as a prominent member because of its easy synthesis and high stability. Being a perfluorinated hydrocarbon, FG was believed to be as unreactive as the two-dimensional counterpart perfluoropolyethylene (Teflon®). However, our recent experiments showed that FG is not chemically inert and can be used as a viable precursor for synthesizing graphene derivatives. This surprising behavior indicates that common textbook grade knowledge cannot blindly be applied to the chemistry of 2D materials. Further, there might be specific rules behind the chemistry of 2D materials, forming a new chemical discipline we tentatively call 2D chemistry. The main aim of the project is to explore, identify and apply the rules of 2D chemistry starting from FG. Using the knowledge gained of 2D chemistry, we will attempt to control the chemistry of various 2D materials aimed at preparing stable graphene derivatives with designed properties, e.g., 1-3 eV band gap, fluorescent properties, sustainable magnetic ordering and dispersability in polar media. The new graphene derivatives will be applied in sensing, imaging, magnetic delivery and catalysis and new emerging applications arising from the synergistic phenomena are expected. We envisage that new applications will be opened up that benefit from the 2D scaffold and tailored properties of the synthesized derivatives. The derivatives will be used for the synthesis of 3D hybrid materials by covalent linking of the 2D sheets joined with other organic and inorganic molecules, nanomaterials or biomacromolecules.
Max ERC Funding
1 831 103 €
Duration
Start date: 2016-06-01, End date: 2021-05-31
Project acronym AEROBIC
Project Assessing the Effects of Rising O2 on Biogeochemical Cycles: Integrated Laboratory Experiments and Numerical Simulations
Researcher (PI) Itay Halevy
Host Institution (HI) WEIZMANN INSTITUTE OF SCIENCE
Call Details Starting Grant (StG), PE10, ERC-2013-StG
Summary The rise of atmospheric O2 ~2,500 million years ago is one of the most profound transitions in Earth's history. Yet, despite its central role in shaping Earth's surface environment, the cause for the rise of O2 remains poorly understood. Tight coupling between the O2 cycle and the biogeochemical cycles of redox-active elements, such as C, Fe and S, implies radical changes in these cycles before, during and after the rise of O2. These changes, too, are incompletely understood, but have left valuable information encoded in the geological record. This information has been qualitatively interpreted, leaving many aspects of the rise of O2, including its causes and constraints on ocean chemistry before and after it, topics of ongoing research and debate. Here, I outline a research program to address this fundamental question in geochemical Earth systems evolution. The inherently interdisciplinary program uniquely integrates laboratory experiments, numerical models, geological observations, and geochemical analyses. Laboratory experiments and geological observations will constrain unknown parameters of the early biogeochemical cycles, and, in combination with field studies, will validate and refine the use of paleoenvironmental proxies. The insight gained will be used to develop detailed models of the coupled biogeochemical cycles, which will themselves be used to quantitatively understand the events surrounding the rise of O2, and to illuminate the dynamics of elemental cycles in the early oceans.
This program is expected to yield novel, quantitative insight into these important events in Earth history and to have a major impact on our understanding of early ocean chemistry and the rise of O2. An ERC Starting Grant will enable me to use the excellent experimental and computational facilities at my disposal, to access the outstanding human resource at the Weizmann Institute of Science, and to address one of the major open questions in modern geochemistry.
Summary
The rise of atmospheric O2 ~2,500 million years ago is one of the most profound transitions in Earth's history. Yet, despite its central role in shaping Earth's surface environment, the cause for the rise of O2 remains poorly understood. Tight coupling between the O2 cycle and the biogeochemical cycles of redox-active elements, such as C, Fe and S, implies radical changes in these cycles before, during and after the rise of O2. These changes, too, are incompletely understood, but have left valuable information encoded in the geological record. This information has been qualitatively interpreted, leaving many aspects of the rise of O2, including its causes and constraints on ocean chemistry before and after it, topics of ongoing research and debate. Here, I outline a research program to address this fundamental question in geochemical Earth systems evolution. The inherently interdisciplinary program uniquely integrates laboratory experiments, numerical models, geological observations, and geochemical analyses. Laboratory experiments and geological observations will constrain unknown parameters of the early biogeochemical cycles, and, in combination with field studies, will validate and refine the use of paleoenvironmental proxies. The insight gained will be used to develop detailed models of the coupled biogeochemical cycles, which will themselves be used to quantitatively understand the events surrounding the rise of O2, and to illuminate the dynamics of elemental cycles in the early oceans.
This program is expected to yield novel, quantitative insight into these important events in Earth history and to have a major impact on our understanding of early ocean chemistry and the rise of O2. An ERC Starting Grant will enable me to use the excellent experimental and computational facilities at my disposal, to access the outstanding human resource at the Weizmann Institute of Science, and to address one of the major open questions in modern geochemistry.
Max ERC Funding
1 472 690 €
Duration
Start date: 2013-09-01, End date: 2018-08-31
Project acronym BioMet
Project Selective Functionalization of Saturated Hydrocarbons
Researcher (PI) Ilan MAREK
Host Institution (HI) TECHNION - ISRAEL INSTITUTE OF TECHNOLOGY
Call Details Advanced Grant (AdG), PE5, ERC-2017-ADG
Summary Despite that C–H functionalization represents a paradigm shift from the standard logic of organic synthesis, the selective activation of non-functionalized alkanes has puzzled chemists for centuries and is always referred to one of the remaining major challenges in chemical sciences. Alkanes are inert compounds representing the major constituents of natural gas and petroleum. Converting these cheap and widely available hydrocarbon feedstocks into added-value intermediates would tremendously affect the field of chemistry. For long saturated hydrocarbons, one must distinguish between non-equivalent but chemically very similar alkane substrate C−H bonds, and for functionalization at the terminus position, one must favor activation of the stronger, primary C−H bonds at the expense of weaker and numerous secondary C-H bonds. The goal of this work is to develop a general principle in organic synthesis for the preparation of a wide variety of more complex molecular architectures from saturated hydrocarbons. In our approach, the alkane will first be transformed into an alkene that will subsequently be engaged in a metal-catalyzed hydrometalation/migration sequence. The first step of the sequence, ideally represented by the removal of two hydrogen atoms, will be performed by the use of a mutated strain of Rhodococcus. The position and geometry of the formed double bond has no effect on the second step of the reaction as the metal-catalyzed hydrometalation/migration will isomerize the double bond along the carbon skeleton to selectively produce the primary organometallic species. Trapping the resulting organometallic derivatives with a large variety of electrophiles will provide the desired functionalized alkane. This work will lead to the invention of new, selective and efficient processes for the utilization of simple hydrocarbons and valorize the synthetic potential of raw hydrocarbon feedstock for the environmentally benign production of new compounds and new materials.
Summary
Despite that C–H functionalization represents a paradigm shift from the standard logic of organic synthesis, the selective activation of non-functionalized alkanes has puzzled chemists for centuries and is always referred to one of the remaining major challenges in chemical sciences. Alkanes are inert compounds representing the major constituents of natural gas and petroleum. Converting these cheap and widely available hydrocarbon feedstocks into added-value intermediates would tremendously affect the field of chemistry. For long saturated hydrocarbons, one must distinguish between non-equivalent but chemically very similar alkane substrate C−H bonds, and for functionalization at the terminus position, one must favor activation of the stronger, primary C−H bonds at the expense of weaker and numerous secondary C-H bonds. The goal of this work is to develop a general principle in organic synthesis for the preparation of a wide variety of more complex molecular architectures from saturated hydrocarbons. In our approach, the alkane will first be transformed into an alkene that will subsequently be engaged in a metal-catalyzed hydrometalation/migration sequence. The first step of the sequence, ideally represented by the removal of two hydrogen atoms, will be performed by the use of a mutated strain of Rhodococcus. The position and geometry of the formed double bond has no effect on the second step of the reaction as the metal-catalyzed hydrometalation/migration will isomerize the double bond along the carbon skeleton to selectively produce the primary organometallic species. Trapping the resulting organometallic derivatives with a large variety of electrophiles will provide the desired functionalized alkane. This work will lead to the invention of new, selective and efficient processes for the utilization of simple hydrocarbons and valorize the synthetic potential of raw hydrocarbon feedstock for the environmentally benign production of new compounds and new materials.
Max ERC Funding
2 499 375 €
Duration
Start date: 2018-11-01, End date: 2023-10-31
Project acronym BIONICS
Project Bio-Inspired Routes for Controlling the Structure and Properties of Materials: Reusing proven tricks on new materials
Researcher (PI) Boaz Pokroy
Host Institution (HI) TECHNION - ISRAEL INSTITUTE OF TECHNOLOGY
Call Details Starting Grant (StG), PE5, ERC-2013-StG
Summary "In the course of biomineralization, organisms produce a large variety of functional biogenic crystals that exhibit fascinating mechanical, optical, magnetic and other characteristics. More specifically, when living organisms grow crystals they can effectively control polymorph selection as well as the crystal morphology, shape, and even atomic structure. Materials existing in nature have extraordinary and specific functions, yet the materials employed in nature are quite different from those engineers would select.
I propose to emulate specific strategies used by organisms in forming structural biogenic crystals, and to apply these strategies biomimetically so as to form new structural materials with new properties and characteristics. This bio-inspired approach will involve the adoption of three specific biological strategies. We believe that this procedure will open up new ways to control the structure and properties of smart materials.
The three bio-inspired strategies that we will utilize are:
(i) to control the short-range order of amorphous materials, making it possible to predetermine the polymorph obtained when they transform from the amorphous to the succeeding crystalline phase;
(ii) to control the morphology of single crystals of various functional materials so that they can have intricate and curved surfaces and yet maintain their single-crystal nature;
(iii) to entrap organic molecules into single crystals of functional materials so as to tailor and manipulate their electronic structure.
The proposed research has significant potential for opening up new routes for the formation of novel functional materials. Specifically, it will make it possible for us
(1) to produce single, intricately shaped crystals without the need to etch, drill or polish;
(2) to control the short-range order of amorphous materials and hence the polymorph of the successive crystalline phase;
(3) to tune the band gap of semiconductors via incorporation of tailored bio-molecules."
Summary
"In the course of biomineralization, organisms produce a large variety of functional biogenic crystals that exhibit fascinating mechanical, optical, magnetic and other characteristics. More specifically, when living organisms grow crystals they can effectively control polymorph selection as well as the crystal morphology, shape, and even atomic structure. Materials existing in nature have extraordinary and specific functions, yet the materials employed in nature are quite different from those engineers would select.
I propose to emulate specific strategies used by organisms in forming structural biogenic crystals, and to apply these strategies biomimetically so as to form new structural materials with new properties and characteristics. This bio-inspired approach will involve the adoption of three specific biological strategies. We believe that this procedure will open up new ways to control the structure and properties of smart materials.
The three bio-inspired strategies that we will utilize are:
(i) to control the short-range order of amorphous materials, making it possible to predetermine the polymorph obtained when they transform from the amorphous to the succeeding crystalline phase;
(ii) to control the morphology of single crystals of various functional materials so that they can have intricate and curved surfaces and yet maintain their single-crystal nature;
(iii) to entrap organic molecules into single crystals of functional materials so as to tailor and manipulate their electronic structure.
The proposed research has significant potential for opening up new routes for the formation of novel functional materials. Specifically, it will make it possible for us
(1) to produce single, intricately shaped crystals without the need to etch, drill or polish;
(2) to control the short-range order of amorphous materials and hence the polymorph of the successive crystalline phase;
(3) to tune the band gap of semiconductors via incorporation of tailored bio-molecules."
Max ERC Funding
1 500 000 €
Duration
Start date: 2013-09-01, End date: 2018-08-31
Project acronym BOTTOM-UP_SYSCHEM
Project Systems Chemistry from Bottom Up: Switching, Gating and Oscillations in Non Enzymatic Peptide Networks
Researcher (PI) Gonen Ashkenasy
Host Institution (HI) BEN-GURION UNIVERSITY OF THE NEGEV
Call Details Starting Grant (StG), PE5, ERC-2010-StG_20091028
Summary The study of synthetic molecular networks is of fundamental importance for understanding the organizational principles of biological systems and may well be the key to unraveling the origins of life. In addition, such systems may be useful for parallel synthesis of molecules, implementation of catalysis via multi-step pathways, and as media for various applications in nano-medicine and nano-electronics. We have been involved recently in developing peptide-based replicating networks and revealed their dynamic characteristics. We argue here that the structural information embedded in the polypeptide chains is sufficiently rich to allow the construction of peptide 'Systems Chemistry', namely, to facilitate the use of replicating networks as cell-mimetics, featuring complex dynamic behavior. To bring this novel idea to reality, we plan to take a unique holistic approach by studying such networks both experimentally and via simulations, for elucidating basic-principles and towards applications in adjacent fields, such as molecular electronics. Towards realizing these aims, we will study three separate but inter-related objectives: (i) design and characterization of networks that react and rewire in response to external triggers, such as light, (ii) design of networks that operate via new dynamic rules of product formation that lead to oscillations, and (iii) exploitation of the molecular information gathered from the networks as means to control switching and gating in molecular electronic devices. We believe that achieving the project's objectives will be highly significant for the development of the arising field of Systems Chemistry, and in addition will provide valuable tools for studying related scientific fields, such as systems biology and molecular electronics.
Summary
The study of synthetic molecular networks is of fundamental importance for understanding the organizational principles of biological systems and may well be the key to unraveling the origins of life. In addition, such systems may be useful for parallel synthesis of molecules, implementation of catalysis via multi-step pathways, and as media for various applications in nano-medicine and nano-electronics. We have been involved recently in developing peptide-based replicating networks and revealed their dynamic characteristics. We argue here that the structural information embedded in the polypeptide chains is sufficiently rich to allow the construction of peptide 'Systems Chemistry', namely, to facilitate the use of replicating networks as cell-mimetics, featuring complex dynamic behavior. To bring this novel idea to reality, we plan to take a unique holistic approach by studying such networks both experimentally and via simulations, for elucidating basic-principles and towards applications in adjacent fields, such as molecular electronics. Towards realizing these aims, we will study three separate but inter-related objectives: (i) design and characterization of networks that react and rewire in response to external triggers, such as light, (ii) design of networks that operate via new dynamic rules of product formation that lead to oscillations, and (iii) exploitation of the molecular information gathered from the networks as means to control switching and gating in molecular electronic devices. We believe that achieving the project's objectives will be highly significant for the development of the arising field of Systems Chemistry, and in addition will provide valuable tools for studying related scientific fields, such as systems biology and molecular electronics.
Max ERC Funding
1 500 000 €
Duration
Start date: 2010-10-01, End date: 2015-09-30
Project acronym C8
Project Consistent computation of the chemistry-cloud continuum and climate change in Cyprus
Researcher (PI) Johannes Lelieveld
Host Institution (HI) THE CYPRUS RESEARCH AND EDUCATIONAL FOUNDATION
Call Details Advanced Grant (AdG), PE10, ERC-2008-AdG
Summary We have developed a new numerical method to consistently compute atmospheric trace gas and aerosol chemistry and cloud processes. The method is computationally efficient so that it can be used in climate models. For the first time cloud droplet formation on multi-component particles can be represented based on first principles rather than parameterisations. This allows for a direct coupling in models between aerosol chemical composition and the continuum between hazes and clouds as a function of ambient relative humidity. We will apply the method in a new nested global-limited area model system to study atmospheric chemistry climate interactions and anthropogenic influences. We will focus on the Mediterranean region because it is a hot spot in climate change exposed to drying and air pollution. The limited area model will also be applied as cloud-resolving model to study aerosol influences on precipitation and storm development. By simulating realistic meteorological conditions at high spatial resolution our method can be straightforwardly tested against observations. Central questions are: - How does the simulated haze-cloud continuum compare with remote sensing measurements and what is the consequence of abandoning the traditional and artificial distinction between aerosols and clouds? - How are cloud and precipitation formation influenced by atmospheric chemical composition changes? - To what extent do haze and cloud formation in polluted air exert forcings of synoptic meteorological conditions and climate? - Can aerosol pollution in the Mediterranean region exacerbate the predicted and observed drying in a changing climate? The model system is user-friendly and will facilitate air quality and climate studies by regional scientists. The project will be part of the Energy, Environment and Water Centre of the newly founded Cyprus Institute, provide input to climate impact assessments and contribute to a regional outreach programme.
Summary
We have developed a new numerical method to consistently compute atmospheric trace gas and aerosol chemistry and cloud processes. The method is computationally efficient so that it can be used in climate models. For the first time cloud droplet formation on multi-component particles can be represented based on first principles rather than parameterisations. This allows for a direct coupling in models between aerosol chemical composition and the continuum between hazes and clouds as a function of ambient relative humidity. We will apply the method in a new nested global-limited area model system to study atmospheric chemistry climate interactions and anthropogenic influences. We will focus on the Mediterranean region because it is a hot spot in climate change exposed to drying and air pollution. The limited area model will also be applied as cloud-resolving model to study aerosol influences on precipitation and storm development. By simulating realistic meteorological conditions at high spatial resolution our method can be straightforwardly tested against observations. Central questions are: - How does the simulated haze-cloud continuum compare with remote sensing measurements and what is the consequence of abandoning the traditional and artificial distinction between aerosols and clouds? - How are cloud and precipitation formation influenced by atmospheric chemical composition changes? - To what extent do haze and cloud formation in polluted air exert forcings of synoptic meteorological conditions and climate? - Can aerosol pollution in the Mediterranean region exacerbate the predicted and observed drying in a changing climate? The model system is user-friendly and will facilitate air quality and climate studies by regional scientists. The project will be part of the Energy, Environment and Water Centre of the newly founded Cyprus Institute, provide input to climate impact assessments and contribute to a regional outreach programme.
Max ERC Funding
2 196 000 €
Duration
Start date: 2009-01-01, End date: 2014-12-31
Project acronym CMetC
Project Selective Carbon-Carbon Bond Activation: A Wellspring of Untapped Reactivity
Researcher (PI) Ilan Marek
Host Institution (HI) TECHNION - ISRAEL INSTITUTE OF TECHNOLOGY
Call Details Advanced Grant (AdG), PE5, ERC-2013-ADG
Summary The creation of new molecular entities and subsequent exploitation of their properties is central to a broad spectrum of research disciplines from medicine to materials. Most –if not all- of the efforts of organic chemists were directed to the development of creative strategies to built carbon-carbon and carbon-heteroatom bonds in a predictable and efficient manner. But is the creation of new bonds the only approach that organic chemistry should follow? Could we design the synthesis of challenging molecular skeleton no more through the construction of carbon-carbon bonds but rather through selective cleavage of carbon-carbon bonds (C-C bond activation)? The goal of this work is to develop powerful synthetic approaches for the selective C-C bond activation and demonstrate that it has the potential to be a general principle in organic synthesis for the regio-, diastereo- and even enantiomerically enriched preparation of adducts despite that C-C single bonds belong among the least reactive functional groups in chemistry. The realization of this synthetic potential requires the ability to functionalize selectively one C-C bond in compounds containing many such bonds and an array of functional groups. This site selective C-C bond activation is one of the greatest challenges that must be met to be used widely in complex-molecular synthesis. To emphasize the practicality of C-C bond activation, we will prepare in a single-pot operation challenging molecular framework possessing various stereogenic centers from very simple starting materials through selective C-C bond activation. Ideally, alkenes will be in-situ transformed into alkanes that will subsequently undergo the C-C activation even in the presence of functional group. This work will lead to ground-breaking advances when non-strained cycloalkanes (cyclopentane, cyclohexane) will undergo this smooth C-C bond activation with friendly and non toxic organometallic species.
Summary
The creation of new molecular entities and subsequent exploitation of their properties is central to a broad spectrum of research disciplines from medicine to materials. Most –if not all- of the efforts of organic chemists were directed to the development of creative strategies to built carbon-carbon and carbon-heteroatom bonds in a predictable and efficient manner. But is the creation of new bonds the only approach that organic chemistry should follow? Could we design the synthesis of challenging molecular skeleton no more through the construction of carbon-carbon bonds but rather through selective cleavage of carbon-carbon bonds (C-C bond activation)? The goal of this work is to develop powerful synthetic approaches for the selective C-C bond activation and demonstrate that it has the potential to be a general principle in organic synthesis for the regio-, diastereo- and even enantiomerically enriched preparation of adducts despite that C-C single bonds belong among the least reactive functional groups in chemistry. The realization of this synthetic potential requires the ability to functionalize selectively one C-C bond in compounds containing many such bonds and an array of functional groups. This site selective C-C bond activation is one of the greatest challenges that must be met to be used widely in complex-molecular synthesis. To emphasize the practicality of C-C bond activation, we will prepare in a single-pot operation challenging molecular framework possessing various stereogenic centers from very simple starting materials through selective C-C bond activation. Ideally, alkenes will be in-situ transformed into alkanes that will subsequently undergo the C-C activation even in the presence of functional group. This work will lead to ground-breaking advances when non-strained cycloalkanes (cyclopentane, cyclohexane) will undergo this smooth C-C bond activation with friendly and non toxic organometallic species.
Max ERC Funding
2 367 495 €
Duration
Start date: 2013-11-01, End date: 2018-10-31
Project acronym CNTM
Project Cryptography on Non-Trusted Machines
Researcher (PI) Stefan Dziembowski
Host Institution (HI) UNIWERSYTET WARSZAWSKI
Call Details Starting Grant (StG), PE5, ERC-2007-StG
Summary This project is about the design of cryptographic schemes that are secure even if implemented on not-secure devices. The motivation for this problem comes from an observation that most of the real-life attacks on cryptographic devices do not break their mathematical foundations, but exploit vulnerabilities of their implementations. This concerns both the cryptographic software executed on PCs (that can be attacked by viruses), and the implementations on hardware (that can be subject to the side-channel attacks). Traditionally fixing this problem was left to the practitioners, since it was a common belief that theory cannot be of any help here. However, new exciting results in cryptography suggest that this view was too pessimistic: there exist methods to design cryptographic protocols in such a way that they are secure even if the hardware on which they are executed cannot be fully trusted. The goal of this project is to investigate these methods further, unify them in a solid mathematical theory (many of them were developed independently), and propose new ideas in this area. The project will be mostly theoretical (although some practical experiments may be performed). Our main interest lies within the theory of private circuits, bounded-retrieval model, physically-observable cryptography, and human-assisted cryptography. We view these theories just as the departing points, since the area is very fresh and we expect to soon witness completely new ideas in this field.
Summary
This project is about the design of cryptographic schemes that are secure even if implemented on not-secure devices. The motivation for this problem comes from an observation that most of the real-life attacks on cryptographic devices do not break their mathematical foundations, but exploit vulnerabilities of their implementations. This concerns both the cryptographic software executed on PCs (that can be attacked by viruses), and the implementations on hardware (that can be subject to the side-channel attacks). Traditionally fixing this problem was left to the practitioners, since it was a common belief that theory cannot be of any help here. However, new exciting results in cryptography suggest that this view was too pessimistic: there exist methods to design cryptographic protocols in such a way that they are secure even if the hardware on which they are executed cannot be fully trusted. The goal of this project is to investigate these methods further, unify them in a solid mathematical theory (many of them were developed independently), and propose new ideas in this area. The project will be mostly theoretical (although some practical experiments may be performed). Our main interest lies within the theory of private circuits, bounded-retrieval model, physically-observable cryptography, and human-assisted cryptography. We view these theories just as the departing points, since the area is very fresh and we expect to soon witness completely new ideas in this field.
Max ERC Funding
872 550 €
Duration
Start date: 2008-11-01, End date: 2013-10-31
Project acronym CONFINEDCHEM
Project Synthetic Confined Environments as Tools for Manipulating Chemical Reactivities and Preparing New Nanostructures
Researcher (PI) Rafal Klajn
Host Institution (HI) WEIZMANN INSTITUTE OF SCIENCE
Call Details Starting Grant (StG), PE5, ERC-2013-StG
Summary "Nature has long inspired chemists with its abilities to stabilize ephemeral chemical species, to perform chemical reactions with unprecedented rates and selectivities, and to synthesize complex molecules and fascinating inorganic nanostructures. What natural systems consistently exploit - which is yet fundamentally different from how chemists perform reactions - is their aspect of nanoscale confinement. The goal of the proposed research program is to integrate the worlds of organic and inorganic colloidal chemistry by means of manipulating chemical reactivities and synthesizing novel molecules and nanostructures inside synthetic confined environments created using novel, unconventional approaches based on inorganic, nanostructured building blocks. The three types of confined spaces we propose are as follows: 1) nanopores within reversibly self-assembling colloidal crystals (""dynamic nanoflasks""), 2) cavities of bowl-shaped metallic nanoparticles (NPs), and 3) surfaces of spherical NPs. By taking advantage of these unique tools, we will attempt to develop, respectively, 1) a conceptually new method for catalyzing chemical reactions using light, 2) nanoscale inclusion chemistry (a field based on host-guest ""complexes"" assembled form nanosized components) and 3) to use NPs as platforms for the development of new organic reactions. While these objectives are predominantly of a fundamental nature, they can easily evolve into a variety of practical applications. Specifically, we will pursue diverse goals such as the preparation of 1) a new family of inverse opals (with potentially fascinating optical and mechanical properties), 2) artificial chaperones (NPs assisting in protein folding), and 3) size- and shape-controlled polymeric vesicles. Overall, it is believed that this marriage of organic and colloidal chemistry has the potential to change the fundamental way we perform chemical reactions, paving the way to the discovery of new phenomena and unique structures."
Summary
"Nature has long inspired chemists with its abilities to stabilize ephemeral chemical species, to perform chemical reactions with unprecedented rates and selectivities, and to synthesize complex molecules and fascinating inorganic nanostructures. What natural systems consistently exploit - which is yet fundamentally different from how chemists perform reactions - is their aspect of nanoscale confinement. The goal of the proposed research program is to integrate the worlds of organic and inorganic colloidal chemistry by means of manipulating chemical reactivities and synthesizing novel molecules and nanostructures inside synthetic confined environments created using novel, unconventional approaches based on inorganic, nanostructured building blocks. The three types of confined spaces we propose are as follows: 1) nanopores within reversibly self-assembling colloidal crystals (""dynamic nanoflasks""), 2) cavities of bowl-shaped metallic nanoparticles (NPs), and 3) surfaces of spherical NPs. By taking advantage of these unique tools, we will attempt to develop, respectively, 1) a conceptually new method for catalyzing chemical reactions using light, 2) nanoscale inclusion chemistry (a field based on host-guest ""complexes"" assembled form nanosized components) and 3) to use NPs as platforms for the development of new organic reactions. While these objectives are predominantly of a fundamental nature, they can easily evolve into a variety of practical applications. Specifically, we will pursue diverse goals such as the preparation of 1) a new family of inverse opals (with potentially fascinating optical and mechanical properties), 2) artificial chaperones (NPs assisting in protein folding), and 3) size- and shape-controlled polymeric vesicles. Overall, it is believed that this marriage of organic and colloidal chemistry has the potential to change the fundamental way we perform chemical reactions, paving the way to the discovery of new phenomena and unique structures."
Max ERC Funding
1 499 992 €
Duration
Start date: 2013-10-01, End date: 2018-09-30
Project acronym DIPOLAR ROTOR ARRAY
Project Regular Arrays of Artificial Surface-Mounted Dipolar Molecular Rotors
Researcher (PI) Josef Michl
Host Institution (HI) USTAV ORGANICKE CHEMIE A BIOCHEMIE, AV CR, V.V.I.
Call Details Advanced Grant (AdG), PE5, ERC-2008-AdG
Summary We propose a feasibility demonstration of an unprecedented concept: preparation of regular two-dimensional arrays of artificial surface-mounted dipolar molecular rotors and control of their coherent motion by the application of an outside electric field. The proposal involves a highly interdisciplinary endeavor, which requires experience in synthesis (preparation of molecular rotors), surface chemistry (assembly of rotors into arrays on surfaces), surface spectroscopy and scanning microscopy (characterization of rotor arrays on surfaces), and theory (modeling of rotor dynamics). The principal investigator is presently actively working and publishing in all of these subdisciplines.
Summary
We propose a feasibility demonstration of an unprecedented concept: preparation of regular two-dimensional arrays of artificial surface-mounted dipolar molecular rotors and control of their coherent motion by the application of an outside electric field. The proposal involves a highly interdisciplinary endeavor, which requires experience in synthesis (preparation of molecular rotors), surface chemistry (assembly of rotors into arrays on surfaces), surface spectroscopy and scanning microscopy (characterization of rotor arrays on surfaces), and theory (modeling of rotor dynamics). The principal investigator is presently actively working and publishing in all of these subdisciplines.
Max ERC Funding
2 457 600 €
Duration
Start date: 2009-02-01, End date: 2014-07-31
