奈米粒子

These stimuli-switchable nanoparticles coated with the cleavable outer polymer coatingmultifunctional peptides may afford a new platform for anticancer drugmiR. These nanoparticles possess characteristics of environmental response, active targeting,gene/chemo combinatorial therapeutics, thus providing spatiotemporal control of posttranｓｃｒｉｐｔional gene regulation, smart nuclear/mitochondrial localization,simultaneous inhibition of multiple progression pathways of tumor cells for enhancing antitumor efficacysafety of cancer therapy.

Inorganic porous nanofibers with surfaceinterface defects are prepared through humidity-controlled electrospinninghigh-temperature annealing technology. Under the irradiation of light sources of different wavelengths (380~780 nm), the bound electrons stored in the valence band can be excited to the conduction band to form free electrons on the surface of the material, generating different intensities of microcurrents, light sensitivitymicrocurrent changes. Because the "inorganic nanofiber" technology has high uniquenesshigh product compatibility, it can be applied to a wide range of markets.

Inorganic porous nanofibers with surfaceinterface defects are prepared through humidity-controlled electrospinninghigh-temperature annealing technology. Under the irradiation of light sources of different wavelengths (380~780 nm), the bound electrons stored in the valence band can be excited to the conduction band to form free electrons on the surface of the material, generating different intensities of microcurrents, light sensitivitymicrocurrent changes. Because the "inorganic nanofiber" technology has high uniquenesshigh product compatibility, it can be applied to a wide range of markets.

Effectively inducing cytotoxic T cell expansion has been a critical challenge in vaccine development. To address this challenge, an entirely biodegradable polymeric nanoshell was invented to couple antigensadjuvants for safepotent immune potentiation. The invention has been adopted for precision anticancer vaccine, broadly reactive influenza vaccine,an effective vaccine MERS-CoV.

We developed a chicken mucosa-targeting polymeric nanoparticle vaccine (~90 nm) co-delivering viral antigenCpG adjuvant using a water-in-oil-in-water double emulsion technique. The particles are biodegradablebiocompatible. This nanoparticle significantly stimulated chicken Harderian gland B cell proliferationsubsequent local IgAIgG secretion in tears. The mucosal Ig protected chickens from virus infection by lowering virus replication at the infection sitethereafter reducing tracheal epithelial ciliostasissystemic infection, relieving clinical symptoms.

With the development of photonics, there has been a push towards optoelectronic devices that are flexible, rollable, wearable, user-friendly, and robust to improve human-machine interfaces. To be integrated onto human body, these devices must be biocompatible and be able to withstand mechanical deformation and different bending curvatures. Figure 1 shows the rollable and soft photonic meta-device.

The innovative technology which is based on the unique biomimetic material, including immunomagnetic nanoparticles, aqueous extraction solvent,a portable IoT detection device promotes the detection speed, accuracy,precision of the target molecule. Featuring with the excellent ability of non-specific binding, this technology decreased the probability of false-negative/false-positive succe

The proposed technology employed gold nanoparticles (AuNPs) to enhance the sensitivity to achieve PCT rapid detection. The fabricated sensors comprise of suspended glass planar waveguides on glass substratesare integrated with microfluidic channels without vacuum-less processes. The results show good performance with a LOD of 0.871 fg/ml for PCT detection modified. The fabricated sensors show very promising results with a high throughput, enabling mass production for rapidsensitive bio-detectionalso fulfils POCT requirements.

"Visible Light Communication (VLC)" is the best candidate for the next generation of network communication owing to its wide bandwidthscompatibility with solid-state lighting devices. Our proposed technology features a novel multilevel photosensing memory which can integrate the photosensing, memorycomputation components for VLC into one device. This device is based on a thin film transistor, where the oxide semiconductor is added with gold nanoparticles to form a "co-active layer" in order to expand the visible light sensing spectrumefficiently convert the light signal into a current signal. It not only simplifies the production processreduces the cost, but also accelerates the signal transmission speed, which further advances the future mobile comm

Supramolecular nanoparticles is a convenient, flexible,modular synthetic non-viral gene delivery vehicle for drug/gene delivery. The self-assembly of SMNPs is enabled upon mixing three different molecular building blocks, namely CD-PEI, Ad-PAMAM,Ad-PEG via Ad/CD motif-based molecular recognition. This allows modular control over the sizes, surface chemistry,payloads of SMNP vectors, thus holding promise for diverse therapeutic applications, especially for developing nanoparticle-based gene delivery platforms.

We have developed a low-costportable reader for thermometric lateral flow immunoassay (TLFIA) using colloidal goldlatex beads as reportersa continuous-wave green laser as the heating source. Instead of using infrared cameras, a single-element infrared sensor is employed for temperature sensing without compromising the sensitivity of the reader. The thermometric assay provides a 10× higher sensitivity than color visualizationthe results are sufficiently quantitative to support decision making in point-of-care testing for infectious diseases (such as COVID-19).

The novel drug-eluting contact lens is a great substitute for traditional eye drops, which are plagued by problems, such as low drug administration efficiency, discomfort,repeated dosing. Drugs can stay on the eyeball for a sufficient period of time. Patients can have access to treatment in an appropriate state at any time. With these advantages, the novel drug-eluting contact lens is expected to become a new method for the treatment of ophthalmic diseasesfor the recovery of patients after ophthalmic surgery. It has broad application prospects in the treatment of ophthalmic diseases.