In June 2025, CIQTEK successfully delivered two advanced scanning electron microscopes to its U.S. distributor, JH Technologies, in Fremont, California. The systems include the SEM3300 Tungsten Filament SEM and the SEM5000X Ultra-High Resolution Field Emission SEM, marking a significant step in CIQTEK's strategic expansion into the North American electron microscopy market.

 

 

To support the deployment, CIQTEK’s engineering team provided comprehensive on-site training to the JH Technologies team. This included detailed system operation, application demonstrations, and technical discussions tailored to real-world use cases. The collaboration enhanced the JH team’s capabilities in showcasing and supporting CIQTEK instruments.

 

 

Following the delivery, JH Technologies hosted a successful Open House at its Fremont facility, featuring live demonstrations of both systems. The event attracted strong attendance from academic and industry professionals, generating significant interest and positive feedback. Encouraged by the success, JH Technologies plans to organize more Open House events shortly to promote CIQTEK’s advanced imaging solutions further.

 

 

Proven Imaging Technology for Demanding Applications

The SEM3300 combines a traditional tungsten filament source with modern optics, offering high-resolution performance at low accelerating voltages. It provides a powerful yet accessible solution for routine analysis and research.

The SEM5000X delivers ultra-high resolution imaging and advanced automation features, making it ideal for materials science, semiconductor inspection, and nanotechnology research. Both systems offer intuitive user interfaces and flexible configuration options to meet diverse application needs.

 

Looking Ahead

CIQTEK’s collaboration with JH Technologies reflects a shared vision of delivering world-class SEM instruments supported by strong local expertise. By combining performance, usability, and accessibility, CIQTEK is rapidly gaining traction among U.S. users in research, manufacturing, and education.

Aleks Zhang, Deputy Director of Overseas Business Group at CIQTEK, commented, “We are proud to see our SEM instruments in the hands of such a professional and capable partner. The momentum in the U.S. market is strong, and we are committed to deepening our support for local customers through close cooperation with distributors like JH Technologies.”

 

The 2.4G connection of the wireless barcode scanner is a private protocol technology designed for short-range wireless communication, usually through a USB receiver (similar to a wireless mouse/keyboard) with a host device (e.g., computer, POS machine, etc.) for data transmission. The following is a detailed description of its working principle and features.

• Fundamentals of 2.4GHz wireless technology

Frequency band:Uses the globally available 2.4GHz ISM band (Industrial, Scientific, Medical band), which is shared with Bluetooth and Wi-Fi, but uses a private protocol for communication.

RF module:

The scanner has a built-in 2.4 GHz RF transmitter that sends decoded data over radio waves.

The USB receiver (similar to a USB flash drive) acts as the RF receiver and is plugged into the computer or end device to receive the signal and convert it to USB data.
Channel Hopping:Some high-end devices support Adaptive Frequency Hopping (AFH), which dynamically switches between multiple frequencies to minimize interference from Wi-Fi or Bluetooth.

• Connectivity and Pairing Process

Plug and Play:

- On first use, the scanner and receiver are usually pre-paired (factory paired) and can be used directly by plugging in the receiver.

- To re-pair, synchronization is triggered by specific buttons on the scanner or by scanning a pairing code.

• Data transmission characteristics

Low Latency:The transmission delay is usually 1-5ms, which is close to the response speed of wired connection.

Transmission distance:Theoretical distance is about 10-100 meters (in practice, it is affected by environmental interference, and the open environment can be more than 50 meters).

Anti-interference ability:Adopt private protocol and encryption technology (such as AES 128-bit encryption) to avoid data interception.

• Typical application scenarios

Warehousing and logistics: Long distance scanning (e.g. high shelves) and fast response time.

Syble Barcode Scanner Selection: XB-D70RB 2D USB Bluetooth COMS Barcode Scanner with Excellent Decoding Performance

Retail Checkout: Dense equipment environment at the checkout counter to avoid Bluetooth channel congestion.

Syble Barcode Scanner Selection:  XB-D35RB Transmission Stable 2D Wireless Handheld Barcode Scanner

Production Line Quality Control: Industrial environments with high anti-interference requirements.

Syble Barcode Scanner Selection: XB-D50RB Industrial 2D Bluetooth 2.4G wireless Barcode Scanner


With 2.4GHz wireless technology, the syblecode scanner strikes a balance between flexibility, speed and stability, making it an efficient and reliable data transmission solution for industrial, retail and other scenarios.

 

Professor Lai Yuekun’s team from Fuzhou University has conducted innovative research addressing the urgent demand for strong adhesive hydrogels in fields such as wearable sensors, soft robotics, tissue engineering, and wound dressings. Currently, interface adhesive materials face two major technical challenges: firstly, difficulty in achieving rapid and reversible switching between adhesive and non-adhesive states; secondly, poor adhesion performance in multi-liquid environments. Recently, the team conducted in-depth studies using the CIQTEK scanning electron microscope.

 

The PANC/T hydrogel was synthesized from acrylamide (AAm), N-isopropylacrylamide (NIPAM), a micellar solution composed of sodium dodecyl sulfate/methyl octadecyl methacrylate/sodium chloride (SDS/OMA/NaCl), and phosphotungstic acid (PTA). Dynamic interactions between PNIPAM chains and SDS enabled on-demand adhesion and separation. Further soaking in Fe³⁺ solution produced the PANC/T-Fe hydrogel, which achieves strong adhesion in various wet environments. This resulted in the development of an intelligent interface adhesive hydrogel with rapid responsiveness, capable of controlled adhesion and separation under different humidity conditions.

The research was published in Advanced Functional Materials under the title "Temperature-Mediated Controllable Adhesive Hydrogels with Remarkable Wet Adhesion Properties Based on Dynamic Interchain Interactions."

 

 

Synthesis and Structural Characteristics of Controllable Adhesive Hydrogel

PANC/T-Fe hydrogel is synthesized by copolymerization of hydrophilic AAm, amphiphilic NIPAM, and hydrophobic OMA. PTA acts as a crosslinker, forming hydrogen bonds with amino groups on polymer chains to establish a stable network. The team discovered that interactions between NIPAM and SDS are critical to the hydrogel’s temperature-sensitive adhesion. At lower temperatures, SDS crystallizes and adheres to PNIPAM chains, hindering adhesive functional groups from interacting with substrates and reducing adhesion. As temperature rises, SDS crystals melt, improving contact between adhesive groups and substrates and significantly increasing adhesion. PTA enhances adhesion at higher temperatures by physically interacting with polymer amino groups; this interaction weakens upon heating, softening the hydrogel and generating more adhesive sites. The dynamic regulation between polymer chains enables reversible, on-demand adhesion.

 

Figure 1. Hydrogel synthesis and mechanism of reversible wet adhesion.

 

Temperature Regulation Mechanism of Adhesion Performance

Through comparative experiments, the team confirmed that the synergistic effect of NIPAM and the micellar solution is key to the hydrogel’s temperature-sensitive adhesion. Differential Scanning Calorimetry (DSC) results indicate the temperature response is unrelated to NIPAM’s Lower Critical Solution Temperature (LCST), but influenced by NIPAM-SDS interactions, which alter SDS crystallization temperature. In situ FT-IR testing revealed that increasing temperature weakens interchain hydrogen bonds, releasing more adhesive groups and enhancing adhesion. Rheological analysis further verified temperature-dependent changes in molecular interactions, causing the hydrogel to shift from rigid to flexible.

 

Figure 2. Mechanism study of temperature-sensitive adhesion.

 

On-Demand Adhesion and Strong Wet Adhesion Performance

PANC/T-Fe hydrogel exhibits on-demand adhesion without external energy input, achievable by simple ice application. At room temperature (25°C), the hydrogel is soft and highly adhesive, making it difficult to peel from glass without leaving residue. Ice treatment enhances internal cohesion and elasticity, facilitating benign detachment and reducing adhesion strength. Adhesion remained stable over multiple cycles between 5°C and 25°C, demonstrating good reversibility. The hydrogel’s controllable adhesion under various environments holds significant potential in tissue healing, material repair, and wet-environment actuators.

 

Figure 3. Performance testing of reversible adhesion.

 

Wet Adhesion Performance in Various Liquid Environments

The hydrogel also performs excellently in liquid environments. The copolymer chains contain both hydrophilic and hydrophobic units; after Fe³⁺ treatment, these segments migrate and rearrange on the surface, enabling strong adhesion in both water and oil. Using CIQTEK SEM3100, the team observed structural changes before and after Fe³⁺ soaking, confirming polymer network rearrangement. Studies on NIPAM and PTAs’ influence showed their combined effect yielded outstanding adhesion in dry, aqueous, and oily environments, with adhesion strengths reaching 121 kPa, 227 kPa, and 213 kPa, respectively. The hydrogel strongly adheres to various substrates, including glass, metal, and wood, and maintains good adhesion in multiple organic solvents and aqueous solutions.

 

Figure 4. Wet adhesion performance in various liquid environments.

 

Figure S10. SEM images of hydrogel cross-section before and after Fe³⁺ treatment showing network loosening.

 

Repair Performance on Damaged Materials

PANC/T-Fe hydrogel has broad application prospects for the temporary repair of damaged materials. For example, in boat model leak repair tests, the hydrogel quickly stops liquid leakage; the repaired boats withstand certain weights without leakage. When repairing damaged substrates in water and oil, the hydrogel endures maximum burst pressures of 57 kPa and 49 kPa, respectively. Ice application allows easy removal without residue, a valuable feature for biomedical and smart material applications, demonstrating great practical potential.

 

Figure 5. Temporary repair performance of PANC/T-Fe hydrogel.

 

This study successfully synthesized PANC/T-Fe hydrogel featuring strong adhesion in various environments and reversible on-demand adhesion. It elucidated how dynamic interchain interactions influence adhesion performance, providing theoretical guidance for novel intelligent adhesive materials. The on-demand adhesion requires no external energy, achievable by ice application, offering a new approach for intelligent adhesives in liquid environments. This innovative control of adhesion performance is expected to enable broad applications and advance smart adhesive technologies, offering new solutions to adhesion-related challenges.

Electron Paramagnetic Resonance (EPR) spectroscopy remains an essential technique for studying paramagnetic species in chemistry, biology, materials science, and physics. Historically, EPR technology has been dominated by a few established manufacturers, most notably Bruker. Many researchers have relied on these legacy systems for decades, often because they were the only available option. However, as research needs evolve and budgets become tighter, scientists are seeking instruments that offer both high performance and greater value.

In recent years, CIQTEK has emerged as a strong alternative. With advanced technical specifications, user-friendly design, and strong application support, CIQTEK EPR spectrometers are now being adopted by a growing number of researchers in the United States. Whether in academic labs, national research institutes, or industrial R&D centers, CIQTEK is increasingly recognized as a rising player in the EPR field. Here we explore the key reasons behind this shift and why U.S. researchers are making the switch to CIQTEK.

 

Cutting-Edge Technology with Practical Design

CIQTEK offers a full range of EPR solutions, including continuous wave (CW) EPR, pulse EPR, and compact benchtop EPR models. Each system is developed with a focus on both performance and ease of use.

• High sensitivity and resolution for demanding research

• Modular configurations to meet specific experimental needs

• User-friendly interfaces and automated controls that reduce training time

U.S. researchers appreciate the balance of advanced capabilities and intuitive design that makes CIQTEK EPR systems both powerful and practical.

 

 

Proven Performance in Scientific Publications

CIQTEK EPR systems have been cited in over 100 peer-reviewed publications. These papers cover a wide range of research areas, including spin trapping, coordination chemistry, radical reactions, quantum materials, and biological systems.

The consistent and reproducible results delivered by CIQTEK instruments give researchers the confidence to rely on them in high-impact scientific work.

 

Growing Adoption by U.S. Institutions

Across top-tier U.S. institutions, including Cornell, Northwestern, and UT Dallas, CIQTEK EPR spectrometers are becoming a preferred choice. Their expanding presence underscores growing confidence in CIQTEK’s performance and reliability.

 

Strong Local Support and Service

In addition to reliable instruments, CIQTEK provides robust technical support tailored to the needs of U.S. users.

• Responsive technical support and remote diagnostics

• On-site installation and training

• Affordable maintenance plans

CIQTEK's responsive service team ensures that researchers can focus on their work without worrying about instrument downtime.

 

High Performance at Competitive Prices

Budget constraints remain a concern for many laboratories. CIQTEK helps researchers maximize their investment by delivering high-end performance at a competitive cost. The value offered by CIQTEK EPR spectrometers is one of the most frequently cited reasons for switching.

 

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Discover the CIQTEK Advantage

If your lab is considering a new EPR system or an upgrade, CIQTEK offers a compelling combination of performance, support, and value. Contact CIQTEK to learn more or to schedule a demonstration.

 

As digital services continue to shape the way we work, live, and communicate, data centers have become the core infrastructure behind this transformation. Whether supporting cloud platforms, artificial intelligence, online transactions, or real-time communications, these facilities must operate with maximum reliability. In such a context, ensuring uninterrupted power supply is essential—not optional.

Even brief power outages can lead to service disruption, data loss, or hardware damage. That’s why having a robust, integrated backup power system is fundamental to maintaining business continuity and operational stability.

 

Reliability Starts with Redundancy 
In a mission-critical environment like a data center, there’s no room for single points of failure. That’s why redundancy is built into modern power infrastructure. Configurations such as N+1 or 2N ensure that if one power component fails or needs maintenance, a backup is immediately available to keep operations running without interruption.
However, redundancy is only effective when it’s part of a smart and responsive system. Backup components like generators, UPS units, and transfer switches must work together seamlessly. When managed by intelligent controllers and power management systems, they can distribute loads efficiently and switch power sources quickly—ensuring smooth transitions during unexpected events.

 

Speed Makes the Difference
The speed at which power transfers from utility to backup can have a big impact. Any delay, even just a few seconds, may cause dropped connections or data inconsistencies. That’s why fast-switching automatic transfer switches (ATS) are essential. With high-speed detection and response, modern ATS systems can handle the switchover with minimal or no impact on equipment.
Technologies such as closed-transition switching offer even greater protection by transferring the load between power sources without any interruption at all—ideal for sensitive systems that require constant uptime.

 

Remote Monitoring Ensures Control
Today’s data centers often operate across multiple sites and rely on remote teams. Having real-time visibility into power systems is crucial. Modern monitoring tools allow operators to track equipment status, fuel levels, alerts, and performance metrics from anywhere, enabling fast decision-making and proactive maintenance planning.
Integration with building management systems (BMS), DCIM tools, and enterprise software adds another layer of efficiency, bringing everything together in a centralized dashboard.

 

Built to Scale with Future Needs
As demand for digital services increases, so do the energy requirements of data centers. A well-designed backup power system should be able to scale accordingly. Modular generators, flexible controllers, and scalable monitoring platforms make it possible to grow power capacity without compromising reliability.
Cost-efficiency also matters. Intelligent load balancing, automated testing, and remote diagnostics help reduce operating costs and extend the life of power equipment—all while supporting long-term sustainability goals.

 

Conclusion
 In today’s always-on world, backup power is not just a safeguard—it’s a core part of a data center’s design philosophy. With the right systems in place, operators can minimize risk, maintain uptime, and protect critical data.
 At Coolnet, we understand the importance of stable power infrastructure. Our solutions are designed to deliver reliability, flexibility, and performance—helping data centers meet the demands of a connected future with confidence.

From July 8–10, CIQTEK joined the scientific and analytical community at Analytica Lab Africa 2025 in Johannesburg, South Africa. Held at the Gallagher Convention Centre, this premier event brought together technology leaders, researchers, and distributors from across the continent.

 

 

At Booth #M04, CIQTEK showcased a powerful lineup of scientific instruments, including our Electron Microscopes, NMR & EPR Spectrometers, and BET Surface Area Analyzers. Throughout the exhibition, we had the pleasure of connecting with a wide range of professionals, many of whom expressed strong interest in advancing analytical capabilities through collaborative partnerships.

 

 

The enthusiasm and professionalism of the visitors were truly inspiring. From detailed technical discussions to potential distribution talks, Analytica Lab Africa 2025 provided a valuable platform to exchange ideas and explore local market needs.

 

 

Following the exhibition, the CIQTEK team has kicked off a dedicated visit across South Africa, meeting with local laboratories, institutions, and potential partners. These face-to-face interactions allow us to understand real-world applications better and continue building trust and momentum in the region.

 

A sincere thank-you to everyone who visited our booth and shared their insights. We’re excited about what’s ahead and look forward to growing together in the South African scientific community.

 

Stay tuned for more updates from the road!

Choosing the right filter type for RF applications depends on several key parameters and application requirements. Here’s a structured approach to selecting between LTCC, LC, Cavity, and Waveguide filters:

1. Frequency Range

LTCC (LowTemperature Cofired Ceramic):

Best for 500 MHz – 6 GHz (e.g., WiFi, 5G sub6 GHz, IoT).

Limited performance at higher frequencies due to parasitic effects.

LC (Lumped Element):

Suitable for DC – 3 GHz (lower frequencies).

Suffers from poor Qfactor at higher frequencies.

Cavity Filters:

Ideal for 1 GHz – 40 GHz (cellular base stations, radar, satellite).

High Qfactor, good for narrowband applications.

Waveguide Filters:

Best for 10 GHz – 100+ GHz (mmWave, radar, aerospace).

Excellent performance at extremely high frequencies.

 

2. Insertion Loss & QFactor

LTCC: Moderate Q (~100300), insertion loss ~13 dB.

LC: Low Q (~50200), higher insertion loss (~25 dB).

Cavity: High Q (~1,00010,000), low insertion loss (~0.11 dB).

Waveguide: Very high Q (~10,000+), ultralow loss (~0.050.5 dB).

 

3. Size & Integration

LTCC: Very compact, surfacemountable, good for integrated modules.

LC: Small but suffers from parasitic effects at high frequencies.

Cavity: Bulky, used in base stations and highpower systems.

Waveguide: Largest, used in aerospace.

 

4. Power Handling

LTCC & LC: Low to medium power (up to a few watts).

Cavity: High power (10s to 100s of watts).

Waveguide: Extremely high power (kW range).

 

5. Cost & Manufacturing

LTCC: Low to medium cost, massproducible.

LC: Cheapest but limited performance.

Cavity: Higher cost due to precision machining.

Waveguide: Most expensive, used in highend applications.

 

6. Application Examples：

Decision Flowchart：

1. Frequency > 10 GHz? → Waveguide (if power & budget allow).

2. Need ultralow loss & high power? → Cavity.

3. Small size & moderate performance? → LTCC.

4. Lowcost, lowfrequency? → LC.

 

Final Recommendation：

5G/WiFi (Sub6 GHz, compact): LTCC.

Cellular Base Stations (High power, low loss): Cavity.

mmWave/Radar (Extremely high frequency): Waveguide.

Consumer Electronics (Low cost, <3 GHz): LC.

 

 

Yun Micro, as the professional manufacturer of rf passive components, can offer the cavity filters up 40GHz,which include band pass filter, low pass filter, high pass filter, band stop filter.

 

Welcome to contact us: liyong@blmicrowave.com

 

Managing multiple devices can be a logistical challenge, whether in schools, hospitals, offices, or public spaces. That’s where our premium 10-port USB-C charging cabinet comes in—designed to effortlessly meet modern device management needs. Made from high-quality, sturdy steel, this cabinet boasts a scratch-resistant finish and can support heavy loads, ensuring durability even in high-traffic environments. Its space-saving wall-mount design, with included mounting accessories, helps maximize limited space while keeping devices organized and accessible.

The convenience is unmatched: this unit arrives fully assembled, so there’s no need for complicated setup. Its sleek design features a stylish cut pattern, which not only adds to the aesthetic but also improves heat dissipation, safeguarding devices during fast charging. Security is prioritized with two included keys, giving you peace of mind that your valuable equipment remains protected. Compact yet powerful, this cabinet offers a clean and professional look that fits seamlessly into various settings.

Designed for versatility, this charging station is perfect for diverse environments—schools, universities, healthcare facilities, airports, libraries, and beyond. It simplifies device management, reducing clutter and eliminating the chaos of multiple chargers. Whether stocking up a classroom with Chromebooks or providing a secure charging station in a healthcare setting, it offers a practical, efficient solution for busy spaces.

Powered by a robust 1000W system, it can charge up to ten devices at once—laptops, tablets, or Chromebooks—safely and quickly. The built-in high-quality charging pad makes setup even easier, providing reliable power on demand. For organizations seeking an effective, space-efficient, and secure device charging solution, this cabinet is a smart investment that boosts productivity and order.

Understanding the Role of Porosity in Bone Tissue Engineering

3D-printed bioactive bone scaffolds play a critical role in bone tissue engineering, where porosity is a key parameter that influences cell adhesion, proliferation, nutrient transport, and new bone formation. Both excessively high and low porosity levels can negatively impact the scaffold’s mechanical stability and biological performance. Therefore, accurate porosity analysis of 3D-printed scaffolds is vital to improving design and optimizing regenerative outcomes.

 

Scanning Electron Microscopy for Microstructural Evaluation

The CIQTEK SEM3200, a tungsten filament scanning electron microscope (SEM), provides high-resolution imaging capabilities for examining the internal structure of 3D-printed scaffolds. It reveals critical pore characteristics such as size, shape, interconnectivity, and distribution, offering visual clarity that is essential for reliable quantitative porosity analysis.

 

Image-Based Porosity Measurement

Using CIQTEK's advanced image analysis software, researchers can select representative scaffold regions in the SEM images and calculate the ratio of pore area to total area. This image-based approach provides precise porosity values, along with statistical measures such as average porosity and standard deviation, ensuring the uniformity and reproducibility of scaffold manufacturing.

 

Correlating Printing Parameters with Scaffold Porosity

SEM3200 enables an in-depth investigation into how various 3D printing parameters, including printing speed, nozzle temperature, and material concentration, impact scaffold porosity. By correlating SEM-derived porosity data with manufacturing variables, researchers can fine-tune the fabrication process to enhance scaffold performance for specific biomedical applications.

 

Why Choose CIQTEK SEM3200 for Porosity Evaluation

• High-Resolution SEM Imaging: Accurately captures micro-scale pore structures with excellent clarity.
• Reliable Measurement: Produces consistent, reproducible data suitable for scientific analysis and peer-reviewed publication.
• User-Friendly Operation: Intuitive interface with localized software reduces training time and increases throughput.
• Cost-Effective Performance: Delivers professional-grade results with an attractive price-to-performance ratio.

 

Empowering Research in Bone Tissue Engineering

With the CIQTEK SEM3200, universities, hospitals, and medtech innovators now have a dependable tool for characterizing the porosity of 3D-printed bioactive scaffolds. Whether your focus is on accelerating preclinical research or optimizing clinical-grade implants, this SEM solution enables deeper insights into scaffold structure, driving advancements in regenerative medicine and biomaterials development.

 

Explore how scanning electron microscopy for 3D-printed scaffolds can enhance your research capabilities. Learn more about the CIQTEK SEM3200

CIQTEK is excited to announce our upcoming participation in Microscopy & Microanalysis (MM) 2025, taking place July 27–31 at the Salt Palace Convention Center in Salt Lake City, Utah, USA. This annual conference is one of the most important global events in the field of microscopy, bringing together leading researchers, instrument developers, and application specialists.

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CIQTEK Booth #1303

At our booth, visitors will have the opportunity to explore CIQTEK’s latest developments in electron microscopy, including our next-generation SEM and FIB systems. Whether you’re seeking high-resolution imaging, intuitive operation, or reliable performance, our solutions are designed to meet the needs of both research and industrial users.

• FIB-SEM
• High Speed FESEM
• FE-SEM
• Tungsten SEM
• TEM

 

JH Technologies Booth #1403

Our trusted U.S. partner, JH Technologies, will also be exhibiting at Booth #1403, offering localized consultation, technical support, and insight into how CIQTEK products are serving laboratories across North America.

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We look forward to meeting scientific professionals, collaborators, and microscopy enthusiasts in Salt Lake City to share insights, explore possibilities, and build lasting partnerships.

Save the date and visit us at MM2025!

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Follow CIQTEK on LinkedIn for more updates and behind-the-scenes highlights from MM2025.