The Experts below are selected from a list of 13341 Experts worldwide ranked by ideXlab platform

Gwénaël Rapenne - One of the best experts on this subject based on the ideXlab platform.

  • modular synthesis of pentaarylcyclopentadienyl ru based Molecular Machines via sequential pd catalysed cross couplings
    Chemical Communications, 2019
    Co-Authors: Yohan Gisbert, Gwénaël Rapenne, Claire Kammerer, Seifallah Abid, Gaëlle Bertrand, Nathalie Saffonmerceron
    Abstract:

    A dissymmetric piano-stool ruthenium(II) complex bearing different halogens on the rotor part was efficiently prepared and subsequently used as a key building block in the modular synthesis of potential rotative Molecular Machines via palladium-catalysed “Sonogashira/Suzuki–Miyaura” sequences. Applying this novel synthetic route to various cross-coupling partners, prototypes of Molecular winches and cogwheels for gear applications, specifically designed for studies at the single-molecule scale, were efficiently obtained.

  • Biomimetic and Technomimetic Single Molecular Machines
    Chemistry Letters, 2019
    Co-Authors: Claire Kammerer, Guillaume Erbland, Yohan Gisbert, Toshio Nishino, Kazuma Yasuhara, Gwénaël Rapenne
    Abstract:

    This highlight review describes our contribution to the field of biomimetic and technomimetic Molecular Machines specially designed to be studied as single molecules on surfaces. Prototypes of mole...

  • Biomimetic and Technomimetic Single Molecular Machines
    Chemistry Letters, 2019
    Co-Authors: Claire Kammerer, Guillaume Erbland, Yohan Gisbert, Toshio Nishino, Kazuma Yasuhara, Gwénaël Rapenne
    Abstract:

    This highlight review describes our contribution to the field of biomimetic and technomimetic Molecular Machines specially designed to be studied as single molecules on surfaces. Prototypes of Molecular wheels, vehicles, gears and motors will be described from their design to the study of their controlled motions using ultra-high-vacuum low-temperature scanning tunneling microscopes (UHV-LT-STM).

  • Modular synthesis of pentaarylcyclopentadienyl Ru-based Molecular Machines via sequential Pd-catalysed cross couplings
    Chemical Communications, 2019
    Co-Authors: Yohan Gisbert, Claire Kammerer, Seifallah Abid, Gaëlle Bertrand, Nathalie Saffon-merceron, Gwénaël Rapenne
    Abstract:

    A dissymmetric piano-stool ruthenium(II) complex bearing different halogens on the rotor part was efficiently prepared and subsequently used as key building block in the modular synthesis of rotative Molecular Machines via palladium-catalysed "Sonogashira/Suzuki-Miyaura" sequences. Applying this novel synthetic route to various cross-coupling partners, prototypes of Molecular winches and gears specifically designed for studies at the single-molecule scale were efficiently obtained.

  • Single Molecular Machines and Motors
    2015
    Co-Authors: Christian Joachim, Gwénaël Rapenne
    Abstract:

    Single Molecular Machines and Motors brings together different approaches and strategies to design, synthesize and study single Molecular Machines and motors in a multidisciplinary way. Written by leading international experts, this book summarizes the advances in the field through a number of disciplines. Some contributions describe Molecular chemistry such as organic, aromatics, and coordination chemistry while others address theoretical chemistry in a predictive way or through post-experimental modelling. Experimental physics with extensive use of scanning probe microscopy (STM and AFM) is discussed for examining one single molecule. This book is aimed at those who are interested in the rapidly growing field of Molecular Machines and motors acting and studied at the single-molecule scale. The goal of the authors and editors is to provide the reader with an up-to-date summary while also offering future perspectives on the field.

Alberto Credi - One of the best experts on this subject based on the ideXlab platform.

  • Photoactivated Artificial Molecular Machines that Can Perform Tasks
    Advanced Materials, 2020
    Co-Authors: Stefano Corra, Serena Silvi, Massimiliano Curcio, Massimo Baroncini, Alberto Credi
    Abstract:

    Research on artificial photoactivated Molecular Machines has moved in recent years from a basic scientific endeavor toward a more applicative effort. Nowadays, the prospect of reproducing the operation of natural nanoMachines with artificial counterparts is no longer a dream but a concrete possibility. The progress toward the construction of Molecular-machine-based devices and materials in which light irradiation results in the execution of a task as a result of nanoscale movements is illustrated here. After a brief description of a few basic types of photoactivated Molecular Machines, significant examples of their exploitation to perform predetermined functions are presented. These include switchable catalysts, nanoactuators that interact with cellular membranes, transporters of small Molecular cargos, and active joints capable of mechanically coupling Molecular-scale movements. Investigations aimed at harnessing the collective operation of a multitude of Molecular Machines organized in arrays to perform tasks at the microscale and macroscale in hard and soft materials are also reviewed. Surfaces, gels, liquid crystals, polymers, and self-assembled nanostructures are described wherein the nanoscale movement of embedded Molecular Machines is amplified, allowing the realization of muscle-like actuators, microfluidic devices, and polymeric materials for light energy transduction and storage.

  • Design of photo-activated Molecular Machines: highlights from the past ten years.
    Chemical Communications, 2019
    Co-Authors: Jessica Groppi, Serena Silvi, Miro Venturi, Massimo Baroncini, Alberto Credi
    Abstract:

    Molecular Machines powered by light are appropriately designed multicomponent Molecular structures that exploit photochemical processes to perform controlled movements. We discuss the advances in the design and investigation of light-driven Molecular Machines by presenting a selection of examples from the past decade.

  • Making and Operating Molecular Machines: A Multidisciplinary Challenge
    ChemistryOpen, 2018
    Co-Authors: Massimo Baroncini, Serena Silvi, Jessica Groppi, Lorenzo Casimiro, Christiaan De Vet, Alberto Credi
    Abstract:

    Movement is one of the central attributes of life, and a key feature in many technological processes. While artificial motion is typically provided by macroscopic engines powered by internal combustion or electrical energy, movement in living organisms is produced by Machines and motors of Molecular size that typically exploit the energy of chemical fuels at ambient temperature to generate forces and ultimately execute functions. The progress in several areas of chemistry, together with an improved understanding of bioMolecular Machines, has led to the development of a large variety of wholly synthetic Molecular Machines. These systems have the potential to bring about radical innovations in several areas of technology and medicine. In this Minireview, we discuss, with the help of a few examples, the multidisciplinary aspects of research on artificial Molecular Machines and highlight its translational character.

  • photochemically controlled Molecular Machines with sequential logic operation
    Israel Journal of Chemistry, 2014
    Co-Authors: Tommaso Avellini, Miro Venturi, Serena Silvi, Massimo Baroncini, Giulio Ragazzon, Alberto Credi
    Abstract:

    A Molecular machine is an assembly of Molecular components (i.e., a supraMolecular structure) designed to perform specific mechanical movements in response to external stimuli. BioMolecular Machines are essential for living organisms and are proven examples of the feasibility and utility of nanotechnology. Artificial Molecular Machines have been built in the laboratory and their use for smart materials and devices is the subject of much investigation. Here we discuss Molecular Machines based on rotaxane-like species, whose operation depends both on the type and sequencing of stimuli. These systems have the potential to store information and when carefully designed, the interplay of thermodynamic and kinetic features of supraMolecular assemblies can yield sequential behavior. The investigation of ‘intelligent’ molecules capable of recognizing a specific input code can introduce new concepts to the field of chemistry and stimulate research in the bottom-up construction of nanodevices.

  • Light operated Molecular Machines
    Chem. Commun., 2011
    Co-Authors: Serena Silvi, Miro Venturi, Alberto Credi
    Abstract:

    In future, artificial Molecular Machines could enable the construction of intelligent materials or perform functions inside our body. We describe the role of light for the operation of Molecular Machines, and show the level of sophistication reached in their development by illustrating a few significant examples reported since the millennium.

Yohan Gisbert - One of the best experts on this subject based on the ideXlab platform.

  • modular synthesis of pentaarylcyclopentadienyl ru based Molecular Machines via sequential pd catalysed cross couplings
    Chemical Communications, 2019
    Co-Authors: Yohan Gisbert, Gwénaël Rapenne, Claire Kammerer, Seifallah Abid, Gaëlle Bertrand, Nathalie Saffonmerceron
    Abstract:

    A dissymmetric piano-stool ruthenium(II) complex bearing different halogens on the rotor part was efficiently prepared and subsequently used as a key building block in the modular synthesis of potential rotative Molecular Machines via palladium-catalysed “Sonogashira/Suzuki–Miyaura” sequences. Applying this novel synthetic route to various cross-coupling partners, prototypes of Molecular winches and cogwheels for gear applications, specifically designed for studies at the single-molecule scale, were efficiently obtained.

  • Biomimetic and Technomimetic Single Molecular Machines
    Chemistry Letters, 2019
    Co-Authors: Claire Kammerer, Guillaume Erbland, Yohan Gisbert, Toshio Nishino, Kazuma Yasuhara, Gwénaël Rapenne
    Abstract:

    This highlight review describes our contribution to the field of biomimetic and technomimetic Molecular Machines specially designed to be studied as single molecules on surfaces. Prototypes of mole...

  • Biomimetic and Technomimetic Single Molecular Machines
    Chemistry Letters, 2019
    Co-Authors: Claire Kammerer, Guillaume Erbland, Yohan Gisbert, Toshio Nishino, Kazuma Yasuhara, Gwénaël Rapenne
    Abstract:

    This highlight review describes our contribution to the field of biomimetic and technomimetic Molecular Machines specially designed to be studied as single molecules on surfaces. Prototypes of Molecular wheels, vehicles, gears and motors will be described from their design to the study of their controlled motions using ultra-high-vacuum low-temperature scanning tunneling microscopes (UHV-LT-STM).

  • Modular synthesis of pentaarylcyclopentadienyl Ru-based Molecular Machines via sequential Pd-catalysed cross couplings
    Chemical Communications, 2019
    Co-Authors: Yohan Gisbert, Claire Kammerer, Seifallah Abid, Gaëlle Bertrand, Nathalie Saffon-merceron, Gwénaël Rapenne
    Abstract:

    A dissymmetric piano-stool ruthenium(II) complex bearing different halogens on the rotor part was efficiently prepared and subsequently used as key building block in the modular synthesis of rotative Molecular Machines via palladium-catalysed "Sonogashira/Suzuki-Miyaura" sequences. Applying this novel synthetic route to various cross-coupling partners, prototypes of Molecular winches and gears specifically designed for studies at the single-molecule scale were efficiently obtained.

Claire Kammerer - One of the best experts on this subject based on the ideXlab platform.

  • modular synthesis of pentaarylcyclopentadienyl ru based Molecular Machines via sequential pd catalysed cross couplings
    Chemical Communications, 2019
    Co-Authors: Yohan Gisbert, Gwénaël Rapenne, Claire Kammerer, Seifallah Abid, Gaëlle Bertrand, Nathalie Saffonmerceron
    Abstract:

    A dissymmetric piano-stool ruthenium(II) complex bearing different halogens on the rotor part was efficiently prepared and subsequently used as a key building block in the modular synthesis of potential rotative Molecular Machines via palladium-catalysed “Sonogashira/Suzuki–Miyaura” sequences. Applying this novel synthetic route to various cross-coupling partners, prototypes of Molecular winches and cogwheels for gear applications, specifically designed for studies at the single-molecule scale, were efficiently obtained.

  • Biomimetic and Technomimetic Single Molecular Machines
    Chemistry Letters, 2019
    Co-Authors: Claire Kammerer, Guillaume Erbland, Yohan Gisbert, Toshio Nishino, Kazuma Yasuhara, Gwénaël Rapenne
    Abstract:

    This highlight review describes our contribution to the field of biomimetic and technomimetic Molecular Machines specially designed to be studied as single molecules on surfaces. Prototypes of mole...

  • Biomimetic and Technomimetic Single Molecular Machines
    Chemistry Letters, 2019
    Co-Authors: Claire Kammerer, Guillaume Erbland, Yohan Gisbert, Toshio Nishino, Kazuma Yasuhara, Gwénaël Rapenne
    Abstract:

    This highlight review describes our contribution to the field of biomimetic and technomimetic Molecular Machines specially designed to be studied as single molecules on surfaces. Prototypes of Molecular wheels, vehicles, gears and motors will be described from their design to the study of their controlled motions using ultra-high-vacuum low-temperature scanning tunneling microscopes (UHV-LT-STM).

  • Modular synthesis of pentaarylcyclopentadienyl Ru-based Molecular Machines via sequential Pd-catalysed cross couplings
    Chemical Communications, 2019
    Co-Authors: Yohan Gisbert, Claire Kammerer, Seifallah Abid, Gaëlle Bertrand, Nathalie Saffon-merceron, Gwénaël Rapenne
    Abstract:

    A dissymmetric piano-stool ruthenium(II) complex bearing different halogens on the rotor part was efficiently prepared and subsequently used as key building block in the modular synthesis of rotative Molecular Machines via palladium-catalysed "Sonogashira/Suzuki-Miyaura" sequences. Applying this novel synthetic route to various cross-coupling partners, prototypes of Molecular winches and gears specifically designed for studies at the single-molecule scale were efficiently obtained.

Miro Venturi - One of the best experts on this subject based on the ideXlab platform.

  • Design of photo-activated Molecular Machines: highlights from the past ten years.
    Chemical Communications, 2019
    Co-Authors: Jessica Groppi, Serena Silvi, Miro Venturi, Massimo Baroncini, Alberto Credi
    Abstract:

    Molecular Machines powered by light are appropriately designed multicomponent Molecular structures that exploit photochemical processes to perform controlled movements. We discuss the advances in the design and investigation of light-driven Molecular Machines by presenting a selection of examples from the past decade.

  • photochemically controlled Molecular Machines with sequential logic operation
    Israel Journal of Chemistry, 2014
    Co-Authors: Tommaso Avellini, Miro Venturi, Serena Silvi, Massimo Baroncini, Giulio Ragazzon, Alberto Credi
    Abstract:

    A Molecular machine is an assembly of Molecular components (i.e., a supraMolecular structure) designed to perform specific mechanical movements in response to external stimuli. BioMolecular Machines are essential for living organisms and are proven examples of the feasibility and utility of nanotechnology. Artificial Molecular Machines have been built in the laboratory and their use for smart materials and devices is the subject of much investigation. Here we discuss Molecular Machines based on rotaxane-like species, whose operation depends both on the type and sequencing of stimuli. These systems have the potential to store information and when carefully designed, the interplay of thermodynamic and kinetic features of supraMolecular assemblies can yield sequential behavior. The investigation of ‘intelligent’ molecules capable of recognizing a specific input code can introduce new concepts to the field of chemistry and stimulate research in the bottom-up construction of nanodevices.

  • Light operated Molecular Machines
    Chem. Commun., 2011
    Co-Authors: Serena Silvi, Miro Venturi, Alberto Credi
    Abstract:

    In future, artificial Molecular Machines could enable the construction of intelligent materials or perform functions inside our body. We describe the role of light for the operation of Molecular Machines, and show the level of sophistication reached in their development by illustrating a few significant examples reported since the millennium.

  • Light powered Molecular Machines
    Chemical Society Reviews, 2009
    Co-Authors: Vincenzo Balzani, Alberto Credi, Miro Venturi
    Abstract:

    The bottom-up construction and operation of mechanical Machines of Molecular size is a topic of high interest for nanoscience, and a fascinating challenge of nanotechnology. Like their macroscopic counterparts, nanoscale Machines need energy to operate. Although most Molecular motors of the biological world are fueled by chemical reactions, light is a very good choice to power artificial Molecular Machines because it can also be used to monitor the state of the machine, and makes it possible to obtain systems that show autonomous operation and do not generate waste products. By adopting an incrementally staged design strategy, photoinduced processes can be engineered within multicomponent (supraMolecular) species with the purpose of obtaining light-powered Molecular Machines. Such an approach is illustrated in this tutorial review by describing some examples based on rotaxanes investigated in our laboratories.

  • Molecular Machines Working on Surfaces and at Interfaces
    ChemPhysChem, 2008
    Co-Authors: Vincenzo Balzani, Alberto Credi, Miro Venturi
    Abstract:

    In the past ten years a great variety of artificial Molecular Machines have been constructed, and very interesting concepts for controlling Molecular-level movements by external inputs have been developed. Most of the studies, however, have been performed in solution, where the investigated systems contain a huge number of molecules which behave independently from one another because they cannot be addressed individually. Before such systems can find applications in many fields of technology, they must be interfaced with the macroscopic world by ordering them in some way so that they can behave coherently and can be addressed in space. The problem of obtaining ordered arrays of Molecular Machines can be addressed by a variety of techniques, which include deposition on surfaces, incorporation into polymers, organization at interfaces, and immobilization in membranes or porous materials. In the last few years, the development of scanning-probe techniques has also enabled direct observation and manipulation of single Molecular-machine molecules on surfaces. Techniques of this kind have opened novel routes to the study of Molecular Machines, and have also contributed to better understanding the differences between movement at the macroscopic and Molecular levels. This paper reviews some recent achievements in the field of Molecular Machines working on surfaces and at interfaces, as single molecules or ordered arrays. Hybrid natural-artificial Machines are also discussed, and the working mechanism of some natural Machines is illustrated for the purpose of comparison.