Abstract: A method is disclosed of manufacturing a semiconductor structure comprising an (001) oriented zincblende structure group III-nitride layer, such as GaN. The layer is formed on a 3C-SiC layer on a silicon substrate. A nucleation layer is formed, recrystallized and then the zincblende structure group III-nitride layer is formed by MOVPE at temperature T3 in the range 750-1000° C., to a thickness of at least 0.5?. There is also disclosed a corresponding semiconductor structure comprising a zincblende structure group III-nitride layer which, when characterized by XRD, shows that the substantial majority, or all, of the layer is formed of zincblende structure group III-nitride in preference to wurtzite structure group III-nitride. The present invention provides methods for producing hydrogen using a mediator that is capable of reversibly donating and accepting four or more electrons.

Abstract: A method is disclosed of manufacturing a semiconductor structure comprising an (001) oriented zincblende structure group III-nitride layer, such as GaN. The layer is formed on a 3C-SiC layer on a silicon substrate. A nucleation layer is formed, recrystallized and then the zincblende structure group III-nitride layer is formed by MOVPE at temperature T3 in the range 750-1000° C., to a thickness of at least 0.5?. There is also disclosed a corresponding semiconductor structure comprising a zincblende structure group III-nitride layer which, when characterized by XRD, shows that the substantial majority, or all, of the layer is formed of zincblende structure group III-nitride in preference to wurtzite structure group III-nitride. The present invention provides methods for producing hydrogen using a mediator that is capable of reversibly donating and accepting four or more electrons.

Abstract: The invention provides a method for controlling an automated chemistry platform using synthetic procedures written in natural language. The method uses natural language processing (NLP) techniques to interpret a synthetic procedure written in natural scientific language and extracts a machine-readable instruction set comprising the distinct operations necessary for carrying out the synthesis on an automated chemical synthesis platform. The method optionall also includes the step of executing the machine-readable instruction set on an automated chemical synthesis platform.

Abstract: Provided is a fluid handling device having multiple flow pathways through the device. The device has a fluid directing manifold comprising an array of interconnected multi-directional valves, and a plurality of ports in fluid connection with the array. The device also has a controller to set the position of the multi-directional valves. The manifold is configured to provide at least two independent flow paths between a pair of ports within the manifold. Also provided is a method of using the device, and an automated chemical synthesis platform comprising the device.

Abstract: The present invention provides a method for estimating the molecular complexity of a sample, for example to determine whether biotic or synthetic components are present in the sample. The method comprises the steps of (a) performing one of MS/MS, NMR or IR on a sample; (b) determining the unique peaks in the resulting spectrum; and (c) calculating the molecular assembly index of the sample based on the number of unique peaks in the spectrum.

Abstract: The present invention provides methods for producing hydrogen using a mediator that is capable of reversibly donating and accepting four or more electrons. A method of the invention comprises the steps of reducing a mediator by four or more electrons to yield a reduced mediator, and oxidising a reduced mediator to yield a mediator, and reducing protons to yield hydrogen.

Abstract: Molecular computer techniques for solving a computational problem using an array of reaction sites, for example, droplets, are disclosed. The problem may be represented as a Hamiltonian in terms of problem variables and problem parameters. The reaction sites may have a physicochemical property mapping to discrete site states corresponding to possible values of the problem variables. In a purely molecular approach, the reaction sites have intra-site and inter-site couplings enforced thereon representing the problem parameters, and the array is allowed to evolve, subjected to the enforced couplings, to a final configuration conveying a solution to the problem. In a hybrid classical-molecular approach, an iterative procedure may be performed that involves feeding read-out site states into a digital computer, determining, based on the problem parameters, perturbations to be applied to the states, and allowing the array to evolve under the perturbations to a final configuration conveying a solution to the problem.

Abstract: The invention provides a chemical computer having a matrix, an input device and an analytical device. The matrix is a plurality of interconnected reaction spaces holding a reaction mixture; the input device is provided to independently address each of a plurality of reaction spaces within the matrix; and the analytical device has a sensor to analyse a reaction characteristic of a reaction mixture in one or more reaction spaces. Also provides are methods for using the chemical computer, and the use of the chemical computer as a logic gate.

Abstract: The present invention provides a method to generate a predictive model for a reaction set, which reaction set is the sum of the reaction outcomes for a plurality of chemical inputs. Also provided is a system for generating a predictive model for a reaction set, which system may be used in the method. The system comprises a synthesiser for conducting reactions, which synthesiser is an automated synthesiser, an analytical unit for monitoring reactions performed by the synthesiser, and a control unit suitably programmed with a machine learning algorithm, for analysing analytical data from the analytical unit, and for controlling the synthesiser.

Abstract: The present invention provides methods for producing hydrogen using a mediator that is capable of reversibly donating and accepting four or more electrons. A method of the invention comprises the steps of reducing a mediator by four or more electrons to yield a reduced mediator, and oxidising a reduced mediator to yield a mediator, and reducing protons to yield hydrogen.

Abstract: The present invention provides a system for performing reactions, where the system comprises a plurality of synthesisers that are in communication via a communal reporting platform. A synthesiser is programmed for the automated synthesis of one or more chemical or biological reactions, and the synthesiser comprises a reaction vessel which is supplied by a reagent delivery system, an analytical system for analysing a reaction, and a controller for managing the reagent delivery system and the analytical system, and for communication with the reporting platform. Also provided are methods for performing a plurality or reactions using the system.

Abstract: The invention provides a method for digitising a method of synthesis. The method includes the steps of identifying a method of synthesis for a target product; (ii) establishing a process sequence for that method, which process sequence is a collection of chemical and/or physical steps within the method of synthesis; and subsequently (iii) translating the process sequence to a digital model of the method of synthesis, which digital model comprises a digital description of the chemical and/or physical steps within the method of synthesis.

Abstract: The invention provides an apparatus comprising a reactionware and an analytical device for analysing a reaction, the analytical device comprising at least a plurality of reaction sensors and the analytical device is configured for placement of a plurality of sensors in the reaction space of the reactionware, and optionally the reaction headspace of the reactionware, and the reactionware is a reaction flask having one or more necks, and the analytical device is held in a neck of the reaction flask.

Abstract: The invention provides methods for producing hydrogen and oxygen, comprising the steps of: (i) oxidising a mediator at a working electrode to yield an oxidised mediator, and reducing protons at a counter electrode to yield hydrogen; and (ii) reducing an oxidised mediator at a working electrode to yield a mediator, and oxidising water at a counter electrode to yield oxygen, wherein the oxygen generation step is performed non-simultaneously to the hydrogen generation step, and the oxidised mediator of step (i) is used as the oxidised mediator of step (ii), or the mediator of step (ii) is used as the mediator of step (i), and the mediator has a reversible redox wave lying between the onset of the oxygen evolution reaction (OER) and the hydrogen evolution reaction (HER).

Abstract: The invention provides a method for preparing a compound or a product having one or more characteristics that meet or exceed a user specification, the process comprising the step of selecting a first combination of chemical inputs, optionally together with physical inputs, and supplying those inputs to a reaction space, thereby to generate a first product; analyzing one or more characteristics of the product generated; comparing the one or more characteristics against a user specification; using a genetic algorithm selecting a second combination of chemical inputs, optionally together with physical inputs, wherein the second combination differs from the first combination, and supplying those inputs to the reaction space, thereby to generate a second product; analyzing one or more characteristics of the second product generated; comparing the one or more characteristics generated against the user specification; repeating the selecting and analyzing steps for further individual combinations of chemical and/or p

Abstract: Provided is an electronic device, such as a flash memory device and/or a write-once-read-once memory device, where the device has a polyoxometallate that is capable of providing and/or accepting one or more electrons. The polyoxometallate may have a Wells-Dawson structure and the polyoxometallate may comprise a cage and optionally one or more guests. Also provided is a method of using the memory device, the method comprising the step of providing to or accepting from the polyoxometalate one or more electrons to provide a polyoxometalate in a reduced or oxidized state.

Abstract: The invention provides a method for preparing a compound or a product having one or more characteristics that meet or exceed a user specification, the process comprising the step of selecting a first combination of chemical inputs, optionally together with physical inputs, and supplying those inputs to a reaction space, thereby to generate a first product; analysing one or more characteristics of the product generated; comparing the one or more characteristics against a user specification; using a genetic algorithm selecting a second combination of chemical inputs, optionally together with physical inputs, wherein the second combination differs from the first combination, and supplying those inputs to the reaction space, thereby to generate a second product; analysing one or more characteristics of the second product generated; comparing the one or more characteristics generated against the user specification; repeating the selecting and analysing steps for further individual combinations of chemical and/or p

Abstract: The present invention provides a method for the generation of hydrogen, where the method comprises the step of reducing a mediator, such as a polyoxometallate, at a working electrode to yield a reduced mediator and generating oxygen at a counter electrode; and contacting the reduced mediator with a catalyst, such as a Pt, Rh, Pd, Mo or Ni containing catalyst, thereby to oxidise the reduced mediator to yield hydrogen.

Abstract: The invention provides a method for preparing a compound or a product having one or more characteristics that meet or exceed a user specification, the process comprising the step of selecting a first combination of chemical inputs, optionally together with physical inputs, and supplying those inputs to a reaction space, thereby to generate a first product; analyzing one or more characteristics of the product generated; comparing the one or more characteristics against a user specification; using a genetic algorithm selecting a second combination of chemical inputs, optionally together with physical inputs, wherein the second combination differs from the first combination, and supplying those inputs to the reaction space, thereby to generate a second product; analyzing one or more characteristics of the second product generated; comparing the one or more characteristics generated against the user specification; repeating the selecting and analyzing steps for further individual combinations of chemical and/or p

Abstract: Provided are methods for preparing and using reaction vessels obtained or obtainable by 3D-printing methods, including a method for preparing a product compound, the method comprising the steps of: (i) providing a reaction vessel that is obtained by a 3-D printing method, wherein the reaction vessel has a reaction space; (ii) providing one or more reagents, optionally together with a catalyst or a solvent, for use in the synthesis of the product compound; and (iii) permitting the one or more reagents to react in the reaction space, optionally in the presence of the catalyst and the solvent, in the reaction vessel, thereby to form the product compound.