Jiangnan University

Jiangnam University

Na Yang

Zhengyu Jin

Xueming Xu

Yaoqi Tian

Yamei Jin

Xiuting Hu

Fengfeng Wu

Benxi Wei

Xing Zhou

Aiquan Jiao

Bao Zhang

Chunsen Wu

Yisheng Chen

Dandan Li

Jinpeng Wang

Zhengjun Xie

Canxin Cai

Han Tao

Nannan Zhang

Jie Ren

Yuyi Zhou

Binghua Sun

Shilin Wu

Yao Zhang

The array induced electric field fluid reaction system includes a reaction unit array with a plurality of reaction units interactively connected as a network configuration, a power supply and a sample container, wherein each reaction unit has a closed iron core, a primary coil and a secondary coil. The primary coil and secondary coil are, respectively, wound around two sides of the closed iron core, and the secondary coil has an insulation pipe for circulating the reaction medium. When the array induced electric field fluid reaction system operates, no charged needle-type electrodes or electrode plates are inserted into the reaction medium. Electrochemical reaction and metal contamination may be avoided. The reaction units can form an array network connection and series/parallel connection, and when the induced electric field in each reaction unit is acted on the reaction medium, specific reaction effects may be achieved.

Array induced electric field fluid reaction system and applications thereof

The present invention discloses a multi-series continuous-flow magnetoelectric coupling processing system and applications thereof. The processing system comprises multi-series of induction units, a power supply and a feed liquid container, wherein each series of the induction unit comprises a closed iron core, a primary coil wound around one side of the closed iron core, and a secondary coil wound around the other side of the closed iron core and arranged in an induction cavity, the secondary coil comprises an insulation pipe for circulation of feed liquid, and the two ends of the insulation pipe are exposed from the induction cavity and are respectively acted as a feeding hole and a discharge hole; the power supply is in parallel connection with each primary coil in the induction unit and provides excitation voltage to each primary coil; and the feed liquid container is in series connection with the insulation pipes of the multi-series induction units to form a feed liquid circulation loop. According to the multi-series continuous-flow magnetoelectric coupling processing system and the applications thereof, operation parameters are abundant; no electrode directly contacts with the feed liquid, thereby avoiding ionic polarization, electrochemical reactions, and heavy metal contamination; besides, the multi-series continuous-flow magnetoelectric coupling processing system has advantage of high mass transfer efficiency.

Multi-series continuous-flow magnetoelectric coupling processing system and applications thereof

The present invention discloses a circulating magnetoelectric-induction reaction system and application thereof. The system comprises an alternating induction voltage unit, an alternating induction magnetic field unit, a low-frequency power supply, and a feed liquid container. The alternating induction voltage unit is mainly composed of a closed iron core, a primary coil, a secondary coil, and an induction voltage cavity. The alternating induction magnetic field unit is mainly composed of a C-shaped iron core, a primary coil, and a magnetic field cavity. The low-frequency power supply is connected to the primary coils in the alternating induction voltage unit and the alternating induction magnetic field unit and provides excitation voltage for the primary coils. The secondary coil comprises an insulating pipeline, which serves as a feed liquid circulating pipeline, and has both ends exposed out of the induction voltage cavity, with one end as a feed inlet and the other as a discharge outlet. The feed liquid container communicates with the feed liquid circulating pipelines in the alternating induction voltage unit and the alternating induction magnetic field unit to form a feed liquid circulation loop. Through the application, continuous-flow processing can be achieved, electrochemical reaction and ionic polarization can be avoided, and production and processing can be conducted efficiently and rapidly in a large scale.

Circulating magnetoelectric-induction reaction system and application thereof

The present disclosure discloses a fluorescent starch nanocrystal and a preparation method and application thereof. Mainly based on the character that starch nanocrystal has an active hydroxyl group on the surface, the present disclosure introduces fluorescein isothiocyanate into the surface of the starch nanocrystal in the form of stable covalent bonds through a two-step chemical modification method: silane coupling and electrophilic addition of fluorescein, so as to prepare the starch nanocrystal with fluorescent properties. The preparation process of the present disclosure is simple and easy to operate, uses cheap and readily available raw materials, involves low cost, and allows the non-fluorescent starch nanocrystal to produce significant fluorescent properties without affecting the properties of the starch nanocrystal itself, thereby expanding the application of starch. Moreover, the fluorescent starch nanocrystal thus obtained has significant fluorescent properties, good biocompatibility and biodegradability, has application prospects in the fields of biosensor preparation, bioimaging marking and fluorescent analysis and detection, and can be further prepared into a novel nano-fluorescent probe with organic nano-particles as the matrix.

Fluorescent starch nanocrystal and preparation method and application thereof

The present disclosure discloses a triple-responsive starch-based microgel and a preparation method thereof. The present disclosure prepares Coxidized starch and PNIPAM semi-interpenetrating network microgel, namely the triple-responsive starch-based microgel, mainly with pH sensitive Coxidized starch and temperature sensitive NIPAM (N-isopropylacrylamide) as raw materials, and using an inverse emulsion polymerization method. The triple-responsive starch-based microgel according to the present disclosure is a spherical particle with the particle diameter of 15-25 &#x3bc;m, has pH, temperature and ionic strength-sensitivity, good biocompatibility and biodegradability, and can be widely used in the fields of nutrient protection, controlled drug release, protein separation and purification and the like. Meanwhile, its preparation process is simple and controllable with mild reaction conditions, and is suitable for large-scale production.

Triple-responsive starch-based microgel and preparation method thereof

An inductive magnetoelectric biochemical reaction system includes a reaction unit which includes a reaction chamber, which includes a reactant container and is disposed in a rotatable perpendicular magnetic field; a primary coil, which is wound around one side of a closed-loop iron core and is connected to a control unit; a secondary coil, which is wound around the other side of the closed-loop iron core and includes an insulating tube which allows a reaction solution acting as a conductor, two ends of the insulating tube being communicated with the reactant container; a rotating magnetic field unit, which is configured to generate the rotatable perpendicular magnetic field; and a control unit, which is at least configured to adjust an excitation voltage and a signal type applied on the primary coil.

Inductive magnetoelectric biochemical reaction system and application thereof

A method for fractionating dextrin, belonging to the technical field of food processing. In principle, the method for fractionating dextrin of the present invention is based on the fact that the dextrin is incompatible with polyethylene glycol in aqueous solution and a larger molecular weight of the dextrin results in more significant incompatibility with polyethylene glycol. Accordingly, the stepwise precipitation of dextrin components having a molecular weight from large to small may be realized by gradually increasing the concentration of polyethylene glycol by gradually adding polyethylene glycol to dextrin in aqueous solution.

Method for fractionating dextrin

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Wuxi, China

Na Yang