Patent Application
20170269096
The present disclosure relates to a reaction system and an using method thereof. More particularly, the present disclosure relates to a reaction system comprising at least one additive and at least one reaction base-plane for augmenting chemical reaction, photoelectrochemical reaction, photochemical reaction, electrochemical reaction or any combination thereof.
Fluorescence, luminescence, spectroscopy, optical density or colors is the typical applications of optical methods in current in vitro diagnostic technique by using a light as detecting light sources or signal sources. The luminate types comprise chemiluminescence, bioluminescence or photoluminescence. Moreover, colorimetric method is the color reaction of a marker with a specific reagent. A color sensor or a photodiode can be used to obtain the color change information or the amount of light reflection to effectively improve the accuracy of the test. Spectral absorption method is a typical method to analyze substance type or substance amount. The biochemical analyzer in in vitro diagnosis is the classical uses to analyze the contents of different substances, for example serum, urine or cerebrospinal fluid. Scattering method is usually used to determine size and amount of particles, the same method can also be used to analyze the size and the structure of cells. However, the current in vitro diagnostic technique have problems of weak signal or insufficient sensitivity by using the light as the detecting sources or the signal sources. The problems cause that the test results cannot be obtained quickly and accurately, or show false positives or false negative results.
The small-molecule anticancer drugs can be classified by mechanism into antimitotic agents, alkylating agents, DNA intercalating agents, topoisomerase inhibitor, DNA cleaving agents or antimetabolites agents. Some of the drugs as well as radiation therapies can produce free radicals or peroxide compounds to attack cancer cell DNA to cause the cancer cell DNA in a wrong structure or a large number of DNA broken so that the cancer cell DNA cannot be repaired, synthesis and replication to treating cancer. However, the present anticancer drugs are expensive, burden to human body, and hard to track utility and distribution of the drug in vivo after the drug administration. Therefore, a new drug development is urgent need.
Wastewater treatment mostly treats domestic sewage and industrial wastewater by physical, biological or chemical ways to separate solid contaminants from water, and reduce organic contaminants and nutrients in water, thereby reducing environmental pollution. Wastewater treatment usually comprises primary treatment, secondary treatment or tertiary treatment. The primary treatment is removing solid waste, oil, sand, hard particles and other precipitatable material in the sewage. The whole process is mechanical. The secondary treatment is decomposing organic compounds to inorganic substances. The tertiary treatment is further using to sand filter, activated carbon or microorganism to remove toxins or heavy metals. The decomposing waste, especially in wastewater treatment has always been a major problem. General wastewater, industrial wastewater, and even to oil pollution are required to be effective and environmental protection technology.
The conventional metallic semiconductor quantum dots, for example titanium dioxide (TiO2) or cadmium sulfide (CdS), can be used for converting light energy to generate electron-hole pairs or redox pairs. The conventional metallic semiconductor quantum dots also can catalyze the reactant comprising, for example water, organic pollution or ammonia, to perform the oxidation-reduction reaction, and to further produce hydrogen or achieve decontamination to solve energy or environmental problems by the different reactants. Furthermore, the free radicals or peroxides comprising O2, OH or H2O2 are produced in a photochemical reaction process, which can inhibit tumor growth or reproduction of bacteria. The electron-hole pairs generated by a light supplement can be recombined to release photons and to carry out a photoluminescence reaction used in detection of the target for assisting diagnosis.
The conventional metallic semiconductor quantum dots have several disadvantages. (1) In the application of solar energy, the absorption range of sunlight is in ultraviolet wavelength from 190 nanometer to 380 nanometer. The absorbed energy is only 4 percentage of sunlight energy, and unable to effectively improve the efficiency. (2) Since the TiO2 quantum dots are very stable, and not easy to change the electronic properties by surface modification; therefore, the TiO2 quantum dots are not conducive to biomedical diagnosis, treatment of specific target design, and other applications in development related components. (3) In the treatment, since the penetration of the ultraviolet light to skin is imperfect, the ultraviolet light excites a low concentration of free radicals in the human body by carrying out the photochemical reactions. Therefore, the inhibition effect of tumor growth or bacterial growth is limited. (4) In the diagnosis, the TiO2 quantum dots are a very stable, the electron-hole pairs generated under the light irradiation can be stably stored in the TiO2 quantum dots, it is difficult to re-combine to release photons, and therefore the target position, for example a specific cell, tissue or microbial, cannot be effectively detected for assisting the diagnosis.
Moreover, another general metallic semiconductor quantum dots, the CdS quantum dots, have several disadvantages. (1) Although the light absorption range can be extended to a wavelength range from 190 nanometer to 900 nanometer, the Cds quantum dots are easily oxidized by the generated electron-hole pairs under a light irradiation, and occurred photo corrosion. The catalysis reaction with the CdS quantum dots cannot be performed stably. (2) In the treatment, the red to near-infrared light can be used as an optimized light source, however, the generation efficiency of the free radicals or peroxides of the CdS quantum dots is too low to treatment uses. (3) Metal cadmium shows high bio-toxicity, and is not suitable for diagnosis and treatment in vivo. (4) When applying to the diagnosis, since the CdS quantum dots show poor hydrophilicity, the CdS quantum dots need to perform a tedious surface modification before uniformly dispersing in water. The process complexity of the tedious surface modification is increased, the yield is declined, the costs are increased, and the stability in water phase is affected, all of the disadvantages are against the biomedical applications of the CdS quantum dots. (5) The CdS quantum dots is difficult to be connected with biological molecules, for example antibodies, proteins, nucleic acids or lipids, resulting in a hard modification of specificity. The surface of the CdS quantum dots contains many defects which cause energy lose, and it is hard to carry out the photoluminescence under a light irradiation.
The conventional metallic semiconductor quantum dots have the congenital obstacles of material properties, comprising absorbance capacity, energy conversion efficiency, toxicity or chemical modification, all of which are insurmountable, therefore, their application scopes are limited. Thus, it is necessary to provide a reaction system comprising an enhancer and a reaction base-plane, and a method for carrying out chemical reaction, photoelectrochemical reaction, photochemical reaction or electrochemical reaction by using the same to solve the problems existing in the conventional technology as described above.
Implementations of the present technology will now be described, by way of example only, with reference to the attached figures. The aspect of the present disclosure can be better understood with reference to the following figures. The components in the figures are not necessarily drawn to scale with the emphasis instead being placed upon clearly illustrating the principles of the present disclosure.
It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures and components have not been described in detail so as not to obscure the related relevant feature being described. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features. The description is not to be considered as limiting the scope of the embodiments described herein.
Several definitions that apply throughout this disclosure will now be presented.
The term “coupled” is defined as connected, whether directly or indirectly through intervening components, and is not necessarily limited to physical connections. The connection can be such that the objects are permanently connected or releasably connected. The term “outside” refers to a region that is beyond the outermost confines of a physical object. The term “inside” refers to a region that is within the outermost confines of a physical object. The term “surface” in the present disclosure refers to the outer part or uppermost layer of a material layer constituting. The term “comprising,” when utilized, means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, group, series and the like. The term “providing” refers to supply something needed or desired to. The term “applying” refers to put to or adapt for a special use, or to put into an action.
The term “variation” in the present disclosure means a change or a difference in condition, amount or level, or an act, a process or a result that differs from a standard or convention. The term “photoelectrochemical” is relating to, or designating an electrochemical cell or reaction in which the electrode potential or the current depends on the nature of the non-metallic semiconductor quantum dots. The variation of current intensity depends on the degree of illumination. The term “photochemical” is the branch of chemistry concerned with the chemical effects of light. Generally, this term is used to describe a chemical reaction caused by absorption of ionizing radiation, ultraviolet, visible light or infrared radiation. The term “electrochemical” is the branch of physical chemistry that studies the relationship between electricity and identifiable chemical change, with either electricity considered an outcome of a particular chemical change or vice versa. These reactions involve electric charges moving between electrodes and an electrolyte. Thus electrochemistry deals with the interaction between electrical energy and chemical change. The term “photoluminescence” is light emission from any form of matter after the absorption of infrared radiation, visible light, or ultraviolet radiation. The term “photovoltaic” refers to produce a voltage when exposed to radiant energy, especially light. The term “photocatalysis” means the alteration of the rate of a chemical reaction by light or other electromagnetic radiation. The term “additive” in the present disclosure means a substance added to a reaction system else to improve, strengthen or otherwise alter it. The term “enhancer” in the present disclosure means a substance added in a reaction system to improve, augment or accumulate the effeteness of the reaction result. The term “substrate” in the present disclosure means a material or a substance on which a reaction system acts. The term “bio-compound” is a biological material or a biological substance made up of one or more parts or elements. The term “element” in the present disclosure means a substance composed of atoms having an identical number of protons in each nucleus. Such elements cannot be reduced to simpler substances by normal chemical means. The term “orbital”, also called atomic orbital, is a mathematical function that describes the wave-like behavior of either one electron or a pair of electrons in an atom. This function can be used to calculate the probability of finding any electron of an atom in any specific region around the atom's nucleus. The atomic orbital may also refer to the physical region or space where the electron can be calculated to be present. The term “dope” or “doping” in the present disclosure means an additive used to improve the properties of a semiconductor. The doping is the intentional introduction of impurities into an intrinsic semiconductor for the purpose of modulating its electrical properties. The term “functional group” in the present disclosure means an atom or group of atoms. In particularly, the functional groups are specific groups or moieties of atoms or bonds within molecules that are responsible for the characteristic chemical reactions of those molecules. The term “administer” or “administration” in the present disclosure refers to give or provide something, for example a light supplement, to a subject or a reaction.
Graphene is a flat monolayer comprising sp2-bonded carbon atoms tightly packed into a two-dimensional honeycomb lattice. Since graphene was first isolated from graphite using sticky tape in 2004, it has attracted tremendous interest from the research community. Graphene exhibits many extraordinary physical properties, such as a high optical transparency, a large theoretical specific surface area, a high charge carrier mobility at room temperature, and an ultra-high electron conductivity. These characteristics make graphene a promising candidate for a wide range of applications in field-effect transistors, conductive electrodes for solar cells, supercapacitors, and lithium-ion batteries. These characteristics can be attributed to the fact that graphene is a zero-gap semiconductor and an atomically thin monolayer.
Graphene oxide (GO), a polymer-like graphitic semiconductor made of only carbon, oxygen, and hydrogen, has a large exposed area and can extensively be dispersed in water on the molecular scale. The GO is the intermediate state between graphene and graphite. Unlike graphite, however, the GO easily exfoliates and disperses in aqueous solution like wrinkled paper because its functional oxygen groups are hydrophilic. The structure and electronic properties of the GO change because of the composition of the oxygen bonding on graphene. Because oxygen atoms have a larger electro-negativity than carbon atoms, the GO becomes a p-doped material where the charge flow create negative oxygen atoms and a positively charged carbon grid. The GO bandgap increases with the oxidation level. Fully oxidized GO is an insulator, in contrast to partially oxidized GO and graphene that are a semiconductor and a conductor, respectively. Therefore, the oxidation level of GO can be used to tune the electronic properties depending on the application. The GO has been reported to have some unique optical properties such as photoluminescence (PL)/fluorescence (FL) and electrochemiluminescence (ECL). Furthermore, the GO is the most important precursor to prepare graphene, which has been widely applied in broad fields due to the low mass density, excellent electrical conductivity and high specific surface area.
The present disclosure is described in relation to a reaction system comprising at least one additive and at least one reaction base-plane, and an using method thereof to produce at least one chemical reaction result, at least one photoelectrochemical reaction result, at least one photochemical reaction result, at least one electrochemical reaction result or any combination thereof. The reaction system further comprises at least one reaction substrate carried out to the chemical reaction, the photoelectrochemical reaction, the photochemical reaction or the electrochemical reaction with the at least one additive and the at least one reaction base-plane.
The at least one additive is a kind of reaction enhancer. The enhancer is incorporated on the basis of its redox potentials that is encompassed by conduction and valence bands of non-metallic semiconductor quantum dots. The enhancer comprises nutrients, vitamins, alkali salts or alkali buffers, organic compounds, inorganic compounds, transition metal ions having an empty d, f, or g orbital or any combination thereof. The nutrients may comprise serum free RPMI, serum free DMEM, serum free MEMα, serum free F12, serum free L15, serum free Hybri-Care or fetal bovine serum. The vitamins may comprise ascorbic acid, co-enzyme Q10, glutathione or astaxanthin. The alkali salts or the alkali buffers may comprise phosphate-buffered saline or polysulfide. The organic compounds (which are preferably heterocyclic compounds, macrocycles, or organic compounds with hydroxyl group, carbonyl group, or nitrogen) may comprise porphyrin, chlorophyll, histamine, methanol, ethanol, triethanolamine or lactic acid. The inorganic compounds may comprise silver nitrate or sodium iodate. The transition metal ions having an empty d, f, or g orbital may comprise ferric ion, ferrous or potassium permanganate, cobalt ion, nickel ion, or any combination thereof. The enhancer can improve, augment or accumulate the variation of chemical reaction, the variation of photoelectrochemical reaction, the variation of photochemical reaction or variation of electrochemical reaction. The enhancer may be added to the reaction system in a concentration range from about 1×10−12 volume per volume percentage (% v/v) to about 50% v/v or a concentration range from about 1×10−15 molarity (M) to about 10 M.
The serum free RPMI, the serum free DMEM, the serum free MEMα, the serum free F12, the serum free L15 or the serum free Hybri-C is a kind of serum free media. The serum free media is the usual media without fetal calf serum literally. The serum free RPMI is RPMI media without fetal calf serum, which is developed by Moore et. al. at Roswell Park Memorial Institute, hence the acronym RPMI. The RPMI media formulation is based on utilizing a bicarbonate buffering system and alterations in the amounts of amino acids and vitamins. The serum free DMEM is Dulbecco's Modified Eagle's medium (DMEM) without fetal calf serum. The DMEM is a modification of Basal Medium Eagle (BME) that contains a four-fold higher concentration of amino acids and vitamins, as well as additional supplementary components. The serum free MEMα is Minimum Essential Medium alpha (MEMα) modification media without fetal calf serum. The MEMα is one of the most widely used of all synthetic cell culture media. The serum free F12 is nutrient mixture Ham's F-12 medium (F-12) without fetal calf serum. The F-12 has higher levels of amino acids, vitamins and trace elements. Putrescine and linoleic acid are added to the F-12. The F-12 is originally designed for the serum-free growth of Chinese hamster ovary (CHO) and lung cells. The serum free L15 is Leibovitz L-15 medium (L15) without fetal calf serum. The L15 is buffered with a complement of salts, free base amino acids and galactose, so the L15 can be used under conditions of free gaseous exchange with the atmosphere. The serum free Hybri-Care is Hybri-Care Medium (ATCC® 46-X™) (Hybri-Care) without fetal calf serum. The Hybri-Care is a special medium formulated to support the growth of hybridomas and fastidious cell lines. The buffering system of 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES) and added sodium bicarbonate (NaHCO3) enables the Hybri-Care to be used at all stages of the hybridoma production from fusion to cloning, including single-cell subcloning. The fetal bovine serum (FBS) is the blood fraction remaining after the natural coagulation of blood, followed by centrifugation to remove any remaining red blood cells. The FBS comes from the blood drawn from a bovine fetus via a closed system of collection at the slaughterhouse. The sugar, also known as glucose, is a chemical with formula C6H12O6.
The ascorbic acid, also known as vitamin C, is a vitamin found in food and used as a dietary supplement. The co-enzyme Q10, also known as ubiquinone or ubidecarenone, and abbreviated at times to CoQ10, CoQ or Q10, is a coenzyme that is ubiquitous in the bodies of most animals. The co-enzyme Q10 is a 1,4-benzoquinone, where Q refers to the quinone chemical group and 10 refers to the number of isoprenyl chemical subunits. The glutathione is an important antioxidant in plants, animals, fungi, some bacteria or archaea. The glutathione is capable of preventing damage to important cellular components caused by reactive oxygen species such as free radicals, peroxides, lipid peroxides or heavy metals. The astaxanthin is a keto-carotenoid. The astaxanthin is found in microalgae, yeast, salmon, trout, krill, shrimp, crayfish, crustaceans, and the feathers of some birds. The astaxanthin provides the red color of salmon meat and the red color of cooked shellfish. The astaxanthin is an antioxidant with a slightly lower antioxidant activity in some model systems than other carotenoids.
The phosphate-buffered saline (PBS) is a buffer solution commonly used in biological research. The PBS is a water-based salt solution containing disodium hydrogen phosphate, sodium chloride, or potassium chloride and potassium dihydrogen phosphate in some formulations. The osmolarity and ion concentrations of the PBS match those of the human body (isotonic). The polysulfide, a mixture of sodium sulfide (Na2S) and sodium sulfide (Na2SO3), exhibits strong reducing ability for hole scavenger.
The methanol, also known as methyl alcohol, is a chemical with the formula CH3OH (MeOH). The ethanol, also known as alcohol, is a chemical with the formula C2H5OH (EtOH). The lactic acid is a chemical with formula C3H6O3. The triethanolamine, often abbreviated as TEA or TEOA, is a viscous organic base that is both a tertiary amine and a triol.
The silver nitrate is an inorganic compound with chemical formula AgNO3. The silver nitrate is a versatile precursor to many other silver compounds. The sodium iodate is the sodium salt of iodic acid. The sodium iodate is an oxidizing agent, and as such it can cause fires upon contact with combustible materials or reducing agents.
The ferric ion is iron with an oxidation number of +3, also denoted iron (III) or Fe3+, and is usually the most stable form of iron in air. Ferrous (Fe2+), in chemistry, indicates a divalent iron compound (+2 oxidation state) that can be regarded as a reducing reagent. The potassium permanganate, the chemical formula KMnO4, is a salt consisting of K+ and MnO−4 ions. It is a strong oxidizing agent.
The at least one reaction base-plane comprises at least one non-metallic semiconductor quantum dot. The at least one reaction base-plane is added to the reaction system in a concentration range from about 1×10−15 milligram per milliliter (mg/mL) to 500 mg/mL. The at least one non-metallic semiconductor quantum dot in the present disclosure has a particle size range from about 0.34 nanometer (nm) to about 100 nm, for example 0.34 nm, 0.5 nm, 1 nm, 3 nm, 5 nm, 10 nm, 15 nm, 20 nm, 25 nm, 30 nm, 35 nm, 40 nm, 45 nm, 50 nm, 55 nm or 60 nm. The at least one non-metallic semiconductor quantum dot may be constructed by a group IVA element, comprising a carbon-based material or a silicon-based material. Preferably, the carbon-based material is graphene or graphene oxide. The at least one non-metallic semiconductor quantum dot comprises graphene quantum dot or graphene oxide quantum dot. Additionally, the shape of the at least one non-metallic semiconductor quantum dot generally presents ball-shape, pillar-shape or disc-shape. The graphene oxide quantum dot preferably presents a disc-shaped structure having a thickness range from about 0.34 nm to about 20 nm, for example 0.34, 0.5, 1, 3, 5, 10, 15 or 20 nm.
Graphene quantum dots (GQDs) represent single-layer to tens of layers of graphene. Due to the GQDs exceptional properties such as low toxicity, stable photoluminescence, chemical stability and pronounced quantum confinement effect, the GQDs are considered as a novel material for biological, opto-electronics, energy or environmental applications. The GQD is becoming an advanced multifunctional material for its unique optical, electronic, spin, and photoelectric properties induced by the quantum confinement effect and edge effect. The GQDs have various important applications in bio-imaging, cancer therapeutics, temperature sensing, drug delivery, LEDs lighter converters, photo-detectors, solar cells, fluorescent material or biosensors fabrication.
The graphene oxide quantum dots (GOQDs) comprise a sp2 domain that renders high carrier transport mobility as well as disordered sp3 hybridized carbon atoms, which bind to oxygen-containing functional groups at the edge sites and on the basal plane. Thus, the GOQD not only have the previous mentioned characteristics and functions of the GQDs but could also provide other benefit.
The most GQDs emit blue light under UV excitation, which seriously limits their scope of applicability. The ability to produce the GOQDs capable of emitting other colors will be highly desirable, particularly for the development of devices requiring white light emission.
Numerous methods have been developed for synthesizing the at least one non-metallic semiconductor quantum dot, comprising top-down methods or bottom-up methods. The top-down methods comprise microwave method, chemical oxidation method, reflux method, hydrothermal method, solvothermal method, electrochemical method, ultrasonic method or RF-plasma method. The bottom-up methods comprise microwave method, hydrothermal method, pyrolysis method, stepwise method, chemical vapor deposition method or self-assembly method.
The at least one non-metallic semiconductor quantum dot may comprise at least one dopant. The doping methods comprise electrochemical method, arc discharge method, hydrothermal method, calcination modification method, Hummer's method, modified Hummer's method or ammonia catalyzed dehydration method. The at least one dopant may comprise at least one IIA group element, at least one IIIA group element, at least one IVA group element, at least one VA group element, at least one VIA group element, at least one transition element having an empty d orbital or any combination thereof. The at least one dopant may preferably comprise Mg, O, N, P, B, Fe, Co or Ni element. The at least one dopant may be doped in the at least one non-metallic semiconductor quantum in a doping ratio from about 0 mole percentage (mol %) to about 50 mol %.
The at least one non-metallic semiconductor quantum further comprises the at least one functional group. The at least one non-metallic semiconductor quantum may be functionalized with the at least one functional group in a ratio from about 0 mol % to about 50 mol %. The at least one functional group may comprise at least one hydrogen atom, at least one IIIA-element functional group, at least one IVA-element functional group, at least one VA-element functional group, at least one VIA-element functional group, at least one VIIA-element functional group or any combination thereof. The at least one functional group may preferably comprise an amino group (NH2—), a phosphite group (—PO3), a carbonyl group (—CO), a carboxyl group (—COOH), a acyl group, a boron atom (B—), a hydrogen atom (H—), a hydroxyl group (—OH), a nitrogen atom (N—), an oxygen atom (O—), a sulfur atom (S—), a phosphorus atom (P—) or any combination thereof.
The at least one reaction substrate may comprise at least one inorganic compound, at least one organic compound, at least one bio-compound, at least one cell, at least one microbial, at least one parasite or any combination thereof. The at least one bio-compound may comprise nucleotides, DNA, RNA, lipids, amino acids, peptides, saccharides or any combination thereof. The at least cell may further comprise at least one cell derived component, comprising organelle, extracellular vesicle or inclusion body.
At least one predetermined energy may be provided to the reaction system to induce, produce, enhance or augment the reaction. The at least one predetermined energy comprises a radiation energy, a heat energy, an electrical energy, a magnetic energy or a mechanical energy. The radiation energy is administered in a wavelength range from 1 pm to 1600 nm, or any combination thereof; the radiation energy is preferably administered in a wavelength range from 1 pm to 1 nm (ionizing radiation); 10 nm-400 nm (Ultraviolet light); and especially 400 nm to 1000 nm (visible light and infrared ray), or any combination thereof. The radiation energy is administered in a power range from about 1×10−6 μW/cm2 to about 100 W/cm2; the radiation energy is preferably administered in a power range from about 10 microWatt per square centimeter (μW/cm2) to about 5 Watt per square centimeter (W/cm2). The heat energy is administered in a power range from about 1×10−6 μW/cm2 to about 100 W/cm2; the heat energy is preferably administered in a power range from about 10 μW/cm2 to about 5 W/cm2. The electrical energy is administered in an electric potential range from about 0.0001 voltage to about 500 voltage; the electrical energy is preferably administered in an electric potential range from about 0.1 voltage to about 5 voltage. Additionally, the electrical energy is administered in an current response ranging from about 1×10−15 Ampere per square centimeter (A/cm2) to about 100 A/cm2; the current response ranging is preferably from about 1×10−12 A/cm2 to about 10 A/cm2. The magnetic energy is administered in a power range from about 1×10−6 μW/cm2 to about 100 W/cm2; the magnetic energy is preferably administered in a power range from about 10 μW/cm2 to 5 W/cm2. The mechanical energy may be preferable ultrasonic energy. The mechanical energy is administered in a power range from about 1×10−6 μW/cm2 to about 100 W/cm2; the mechanical energy is preferably administered in a power range from about 10 μW/cm2 to about 5 W/cm2.
The reaction system is used to augment the chemical reaction, the photoelectrochemical reaction, the photochemical reaction, the electrochemical reaction or any combination thereof. The photoelectrochemical reaction further comprises variation of photoluminescence reaction or variation of photovoltaic reaction. The photochemical reaction further comprises variation of photocatalysis reaction.
The chemical reaction, the photoelectrochemical reaction, the photochemical reaction, electrochemical reaction or any combination thereof may induce redox reaction, electrochromic, electrochemiluminescence, photochemiluminescence, or photoelectrochemiluminescence.
The chemical reaction, the photoelectrochemical reaction, the photochemical reaction, the electrochemical reaction or any combination thereof can be carried out with or without the enhancer which form a composition with the non-metallic semiconductor quantum dot to augment at least one reaction result, comprising color change, luminescence intensity variation, fluorescence intensity variation, optical density variation, luminescence wavelength profile variation, fluorescence wavelength profile variation, optical wavelength profile variation, current intensity change, electron response, substrate amounts decreasing, substrate activities change, substrate compounds modification or substrate functions change.
The color change, the luminescence intensity variation, the fluorescence intensity variation, the optical density variation, the luminescence wavelength profile variation, the fluorescence wavelength profile variation, the optical wavelength profile variation, the current intensity change, the electron response, substrate amounts decreasing, substrate activities change, substrate compounds modification or substrate functions change in the reaction system can be used to indicate, semi-quantify or quantify the non-metallic semiconductor quantum dot, the reaction substrates (direct or indirect) as target molecules interacted with the non-metallic semiconductor quantum dot, or the target molecules conjugated with the non-metallic semiconductor quantum dot by interactions including but not limited to covalent bond, ester bond, peptide bond, thioester bond. These can also be used for quantification, semi-quantification, or indication of the present of the target molecules which can interact with the molecules that are conjugated with the non-metallic semiconductor quantum dot for detecting the target molecules. These can also be used for quantification, semi-quantification, or indication of the present of the “reactive”, “non-reactive” or “the ratio of reactive/non-reactive” of non-metallic semiconductor quantum dot, and consequently be used for quantification, semi-quantification, or indication of the present of targets molecules which can react directly with the non-metallic semiconductor quantum dot or indirectly via specific mediators for detecting the target molecules.
The color change, the luminescence intensity variation, the fluorescence intensity variation, the optical density variation, the luminescence wavelength profile variation, the fluorescence wavelength profile variation, the optical wavelength profile variation, the current intensity change, the electron response, substrate amounts decreasing, substrate activities change, substrate compounds modification or substrate functions change in the reaction system can be occurred by the addition of the enhancers, the changes of the non-metallic semiconductor quantum dot, the different reaction substrate, the administration of the predetermined energy or the other components in the reaction system.
The enhancer can be used to enhance similar reactions to the chemical reaction, the photoelectrochemical reaction, the photochemical reaction or the electrochemical reaction that are carried out by photochemical reporter agents or electrochemical reporter agents other than the non-metallic semiconductor quantum dot. The photochemical reporter agents or the electrochemical reporter agents further comprises metallic semiconductor quantum dots, non-semiconductor quantum dots, dye molecules, sensitizers, energy absorbing substances, energy directing molecules, energy gathering molecules or any combination thereof. The metallic semiconductor quantum dots comprise CdSe quantum dots, CdTe quantum dots, CuS quantum dots, CuSe quantum dots, PbS quantum dots, ZnO quantum dots, SnO2 quantum dot and for ternary compound such as CuInS2 quantum dots, CuInSe2 quantum dots, InAsN quantum dots, TiO2 quantum dots, GaP quantum dots, or GaAs quantum dots. The non-semiconductor quantum dots comprise TiO2, PbO, Cu2O, CuO, WO3, SnO2, Bi2O3, Fe2O3, BiVO4, SrTiO3, BaTiO3, FeTiO3, KTaO3, InAsN, GaP, GaAs, or MnTiO3.
The detecting can be carried out in forms of lateral flow, micro-chip assay, ELISA, well-base assay, cuvette-based assay, semiconductor-based sensor chip, photomultiplier, charge-coupled device based assay, complementary metal-oxide semiconductor based assay, potentiostat/galvanostatt/cyclic voltammetry instruments, electrochemical analyzers, electrochromic analyzers, electrochemiluminescence analyzers, electrochemiluminescence analyzers, photochemiluminescence or photoelectrochemiluminescence analyzsers, but it is not limited thereto.
The fluorescent intensity changes in the chemical reactions presented in
The embodiments shown and described above are only examples. Many details are often found in the art such as the other features of a graphene oxide quantum dots. Therefore, many such details are neither shown nor described. Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the detail, including in matters of type, size, concentration and arrangement of the parts within the principles of the present disclosure up to, and including the full extent established by the broad general meaning of the terms used in the claims. It will therefore be appreciated that the embodiments described above may be modified within the scope of the claims.
This application claims the benefit of U.S. Provisional Application No. 62/311,194, filed on Mar. 21, 2016, the contents of which are adopted herein by reference.
| Number | Date | Country | |
|---|---|---|---|
| 62311194 | Mar 2016 | US |
