News & Events

In January 2024, CIQTEK's benchtop electron paramagnetic resonance spectrometer EPR200M was successfully delivered to Cornell University for research and teaching in the biomedical field.   Cornell University researchers have carried out a number of biomedical research and teaching work based on the EPR200M. The product's simple operation experience, accurate test results, and the prompt service of CIQTEK engineers were well received by the users. They sent a letter of thanks after the delivery of the product: "We find the spectrometer very sensitive and convenient in operation".   Jess Whittemore from Cornell University used a video to show the process of testing solid, liquid samples using the EPR200M.                                                          

KOREA LAB 2024 KOREA LAB is the largest exhibition in Korea for analytical, laboratory equipment, and biotechnology. It provides effective marketing tools for expanding market share in Asia-Pacific. The event gathers makers, suppliers, and specialists in the industry, offering opportunities for brand positioning, product promotion, and partnership building.   · Meet CIQTEK at Booth  #8I308: We look forward to meeting you at our booth, where we will be presenting solutions based on Electron Paramagnetic Resonance (EPR) and Scanning Electron Microscope (SEM). We will have a real working electron microscope on display and ready to answer your questions, and demonstrate the newest hardware & software, so please take the opportunity to discuss with our experts and try it out.   Date: April 23 - 26, 2024 Location: KINTEX 2 (Korea International Exhibition Center 2), Korea    

We are excited to announce that the new distribution agreement was signed with AXT which will distribute our Diamond Microscope (DM) and Educational Diamond Computer. The following is reprinted from AXT. CIQTEK is the developer and manufacturer of world-leading precision measurement technologies. Established in 2016 they have rapidly grown and currently have over 700 employees of which 70% are in their R&D team and have over 800 customers around the world. They originated from the Key Laboratory of Microscale Magnetic Resonance of the Chinese Academy of Sciences, University of Science and Technology of China and are responsible for over 200 patents, software copyrights and intellectual property assets (pending and granted). CIQTEK’s Diamond Microscope (DM) is a wide-field magnetic resonance instrument based on the principle of spin magnetic resonance in the diamond nitrogen-vacancy centre (NV centre). It offers ultra-high spatial resolution (up to 400nm), high sensitivity (5μT√HZ per pixel) fast imaging and a large field of view (1mm x 1mm). Ideally suited to the characterisation of semiconductors, it also has applications in geology and cell biology. Their Educational Diamond Computer is a teaching instrument based on the diamond’s spin magnetic resonance of the nitrogen-vacancy centre. The desktop design makes it easy to adapt to classrooms, laboratories, and other settings for conducting mechanics and computing experimental courses, while the ability to ability to operate at room temperature (i.e. no cryogenic cooling is necessary) almost negates operating costs. Richard Trett, AXT’s Managing Director commented, “Semiconductors are prioritised national growth areas in Australia. CIQTEK’s products are essential to these areas of research and we hope to remain ahead of the demand for our community, offering them cutting-edge tools so they can continue to push the boundaries of science.” CIQTEK’s Senior Engineer, Dr. Eric Xu replied, “We see the growth potential in Australia and we share AXT’s vision and look forward to working with them to satisfy the needs of Australian researchers”. AXT currently represents over 50 suppliers from around the world. Their portfolio caters for materials science, life science, mining and mineral and non-destructive testing.

Results Brief Appl. Catal. B：Porous graphitized carbon-supported FeOCl as a bifunctional adsorbent-catalyst for the wet peroxide oxidation of chlorinated volatile organic compounds: Effect of mesopores and mechanistic study Wet scrubbing combined with adsorption-enhanced heterogeneous advanced oxidation processes (AOPs) is an effective method to treat chlorinated volatile organic compounds (CVOCs). A porous graphitized carbon (PGC)-loaded FeOCl catalyst was developed by the group of Mr. Jinjun Li from Wuhan University for the effective removal of gaseous dichloroethane, trichloroethylene, dichloromethane, and chlorobenzene. The PGC-loaded FeOCl catalyst was characterized by BET and analyzed for adsorption performance, and it was found that the PGC-loaded FeOCl catalyst had a well-developed mesoporous structure, which could accelerate the diffusion of organic molecules within the particles, and showed better removal performance for CVOCs. CIQTEK EASY-V series products used in the study Chem. Eng. J：Micro-mesoporous graphitized carbon fiber as hydrophobic adsorbent that removes volatile organic compounds from air Activated carbon fibers (ACFs) are a popular class of adsorbents for volatile organic compounds (VOCs). Mr. Jinjun Li's group at Wuhan University prepared hydrophobicity-enhanced porous graphitized carbon fibers (PGCFs) by KOH-catalyzed graphitization and studied their adsorption capacity of representative VOCs, which was characterized to show that PGCFs have a high specific surface area of more than 2,200 m2/g and a micromediaturized pore structure, and that selective adsorption capacity of organics was improved under humid conditions. CIQTEK EASY-V series products used in the study   Chem. Eng. J：Bamboo-derived hydrophobic porous graphitized carbon for adsorption of volatile organic compounds Hydrophobic bamboo-based porous graphitized carbons (BPGCs) were prepared by a composite catalytic graphitization method to study their adsorption performance on toluene, cyclohexane and ethanol, and the specific surface area sizes and micromesopore ratios of the carbon materials prepared at different synthesis temperatures were tested by BET characterization, which provides some theoretical support for evaluating the adsorption performance of carbon materials. CIQTEK EASY-V series products used in the study   Material Adsorption Property Testing Technology Photocatalytic-driven CO2 reduction coupled with photo-oxidative conversion of plastic wastes into value-added chemicals is an effective strategy to address the greenhouse and environmental crises. The porous graphitized carbons (PGCs) and PGC-loaded FeOCl catalysts (FeOCl/PGCs) synthesized at different ratios were characterized by a specific surface and pore size analyzer, and the N2 adsorption and desorption isotherms are shown below in Fig.1d. The adsorption of N2 by PGC0 and FeOCl/PGC0 was mainly in the low relative pressure band at P/P0< 0.1, which is a typical micropo...

CIQTEK X-Band Benchtop Electron Paramagnetic Resonance Spectroscopy EPR200M was successfully delivered to Prof. Chen Xiaoyuan's group at the National University of Singapore (NUS).   CIQTEK EPR helps with diagnosis and treatment integration research Founded in 1905, the National University of Singapore (NUS) is one of the finest research universities in Singapore and ranks among the world's top researchers in the fields of chemistry and materials science. The main research direction of Prof. Chen Xiaoyuan's group, which introduced the CIQTEK EPR200M, is diagnostic and therapeutic integration. The research utilizes nanotechnology to achieve precise delivery of drugs, including small molecule drugs, peptides and mRNAs, etc. Combined with multimodal imaging technology, the group evaluates the tissue distribution and pharmacokinetic process of drugs in vivo and ultimately realizes the integration of diagnosis and treatment.   Jianhua Zou, the relevant person in charge of the project team, said: The stability, sensitivity index and data accuracy of the CIQTEK EPR200M product are fully in line with the requirements of the project team's experimental testing. The team will use the device to test the generation or scavenging of a variety of reactive oxygen species, such as monoclinic oxygen, superoxide radicals, hydroxyl radicals, etc. By measuring the changes in the signal parameters of these radical substances, EPR can dynamically and quantitatively monitor the increase or decrease of their concentration in biological samples, so as to test the effectiveness of antioxidant substances in scavenging reactive oxygen species.   X-Band Benchtop EPR Spectroscopy | EPR200M The EPR200M is a newly designed and engineered benchtop electron paramagnetic resonance spectrometer. Based on high sensitivity, high stability, and a variety of experimental scenarios, it provides a cost-effective, low-maintenance, simple and easy-to-use experience for every EPR experimental user.

CIQTEK is pleased to announce BK Instruments Inc. as our sole distributor for the range of Electron Paramagnetic Resonance (EPR or ESR) equipment in the Republic of Korea. BK Instruments Inc. (BKI) is a Korean company that provides experimental analysis equipment and related consumables and services. Since its establishment in January 1999, BK Instrument Inc. has been constantly striving to achieve customer satisfaction as the top priority without obsessing over momentary profits. As a leader in the next-generation environmental field, it will take the lead in developing science and industry technology.   BKI will work closely with the CIQTEK team to provide the best local service to Korean customers.     

Recently, Zhichao Jin's research team at Guizhou University has demonstrated that heteroatomic anions can be used as super-electron donors to initiate free-radical reactions to easily synthesize 3-substituted benzofurans. The resulting products have broad application prospects in organic synthesis and pesticide development.     The results were published in the prestigious journal Nature Communications under the title "Facile access to benzofuran derivatives through radical reactions with heteroatom-centered super-electron-donors". In the study, CIQTEK's X-band continuous-wave electron paramagnetic resonance spectrometer EPR200-Plus was used to confirm the generation of free radical species in the reaction system.   Benzofurans are among the 100 major cyclic structures widely found in human clinical drugs. In particular, 3-substituted benzofurans are frequently found as core structures in many natural and non-natural drug molecules with proven biological activity. In order to obtain 3-substituted benzofuran derivatives with a wide range of functionalities rapidly and selectively, the development of new and efficient synthetic methods is essential. Single-electron transfer reaction is one of the most efficient ways to construct functionalized 3-substituted benzofurans, and a suitable electron donor is crucial for the success of the single-electron transfer process. However, to date, no study has reported the use of heteroatom-centered anions as direct super-electron donors for single-electron transfer reactions.   The research team of Zhichao Jin at Guizhou University has easily synthesized 3-substituted benzofuran molecules with various heteroatom functionalities by utilizing heteroatom anions as SEDs to initiate the free radical reactions in their studies. Phosphines, thiols, and anilines with different substitution patterns performed well in this intermolecular free radical coupling reaction, and the 3-substituted benzofuran products with heteroatom functionalities showed moderate to excellent yields.   Fig. 1 | Bioactivities, syntheses of 3-substituted benzofurans and SEDs for radical reactions. a Commercial drugs containing 3-substituted benzofuran structures. b Typical methods for access to 3-substituted benzofurans. c Representative organic small molecular SEDs. d Heteroatom anions as SEDs for 3-heteroalkylbenzofuran synthesis.   The generation of free radical species in the reaction system was confirmed in the study using EPR technique (CIQTEK EPR200-Plus). The EPR spectra of the mixture of 1a, HPPh2 and LDA in 25°C DME showed a signal similar to the phenyl g factor at g = 2.0023. Fig. 4 | EPR spectrum of the reaction mixtures and control experiments. a EPR spectrum of the reaction mixtures. b Feasibilities of the heteroatomic anions as SEDs for the radical reactions. c Cross-radical coupling reactions with mercaptans. d The X-band EPR spectrum of 1:2:2 stoichiometric reaction of 1a (0.1 mmol), HPPh2 (0.2 ...

Pittcon Conference and Expo 2024 Pittcon is a dynamic, transnational conference and exposition on laboratory science, a venue for presenting thelatest advances in analytical research and scientific instrumentation, and a platform for continuing education andscience-enhancing opportunity. Pitcon is for anyone who develops, buys, or sells laboratory equipmentperforms physical or chemical analyses, develops analysis methods, or manages these scientists.   · Meet us at Booth 1638: We look forward to meeting you at our booth, where we will be presenting solutions based on EPR and Scanning Electron Microscope. We will have a real working electron microscope on display, so please take the opportunity to discuss with our experts and try it out.   Date: Feb 24 - 28, 2024 Location: San Diego Convention Center,111 Harbor Dr, San Diego, CA