36results about How to "Improve optical signal strength" patented technology

The invention discloses a new method for detecting hydrogen peroxide on the basis of a MoS2 nanometer enzyme luminescence system. The new method comprises the following steps: S1, preparing MoS2 two-dimensional nanometer enzymes; S2, preparing 0.1 mol / L of a Rumino mother liquor and a Tris-HCI buffer solution; S3, diluting the prepared Rumino mother liquor with the Tris-HCI buffer solution to 5 mol / L of the Rumino mother liquor, then taking 40 micro-liters of the solution to be uniformly mixed with 40 micro-liters of hydrogen peroxide solution in a measuring cup, then adding 40 micro-liters of1 mol / L of MoS2 nanometer enzymes, reacting for 30 seconds, then putting the whole reaction system in a chemiluminescence measuring instrument, and collecting and recording an optical signal producedby reaction through a chemiluminescence instrument. The new method disclosed by the invention has the benefits that the intensity of the optical signal when the hydrogen peroxide is detected is enhanced, and the reaction time is shortened.

A micropore structure of a microplate strip comprises round micropore in a standard format. A plurality of convex tooth strips in the same shape and proportion are arranged in an equant manner on the annular wall of the lower part of the inside of each micropore, the bottoms of the convex tooth strips are connected with the bottom of the micropore, and the sides of the convex tooth strips are connected with the annular wall of the micropore. The surface area formed by the convex tooth strips convex inward is much greater than the surface area of the inner cavity of the conventional micropore, so the solid-liquid interface of the same volume of reaction solution has a greatly increased reaction area that is favorable for complete immunoreactions, and luminous reaction or enzyme catalyzed reaction and contributes to the great reduction in time for reaching reaction equilibrium, improvement in detection flexibility and reduction in time for detection; the convex tooth strips improves both the reaction area and an optical signal compared with the conventional micropore structure and increases the strength of the detection optical signal of a luminometer; the top parts of the convex tooth strips are inclined sectors which are capable of reflecting the optical signal of the luminous reaction upward to a probe of the luminometer, and compared with the reaction of the micropore side wall of the conventional microplate strip, the optical signal of the probe is strengthened considerably and the flexibility of a method is improved.

The invention discloses a bracelet / foot ring worn by corrective personnel, comprising a wristband, a light source, a light detection module, a first Fresnel lens, a second Fresnel lens, at least a first reflection section and a second reflection The optical structural component, the control module, and the power supply of the cut surface, wherein the light emitted by the light source is focused by the second Fresnel lens and enters the optical structure component, and is reflected to the second reflective cut surface by the first reflective cut surface , and then transmitted to the optical detection module through the first Fresnel lens, the two ends of the optical structural member are fixedly connected with the two ends of the wristband to form a ring structure, and the light source, light detection module and control module are connected with the The power connection. It uses a Fresnel lens to focus light to enhance the intensity of light signals, and uses optical structural parts to improve connection strength and product stability. The circuit is placed in the wristband to make it more comfortable to wear and has better waterproof performance.

Provided is a biochip and an apparatus for detecting a biomaterial. The biochip includes a metal thin film on the surface of a substrate, restraining autofluorescence of the substrate, and a spacer on the metal thin film, having capture molecules immobilized on the surface of the spacer and specifically bound to target molecules. The spacer has a thickness controlled to enhance the strength of a fluorescence signal emitted from a fluorophore labeled with the target molecules and immobilized on the spacer by the specific binding between the capture molecule and the target molecule.

The invention relates to a method for preparing silicon-dioxide microspheres with liposome embedded with quantum dots. The method includes the following steps: lipid material is dissolved in an organic solvent for being prepared to be a lipid film by rotary evaporation; the lipid film is added with a water solvent of the quantum dots for being prepared to be the liposome taking lipid as the film and the quantum dots as the core and with a grain size less than or equal to 10 Mum by a thin film dispersing method; the lipsome is added with tetraethyl orthosilicate to form silicon dioxide on the surface of the lipsome so as to obtain the silicon-dioxide microsphere with the liposome embedded with the quantum dots. The method has the advantages that: the silicon-dioxide microsphere with the liposome embedded with the quantum dots can decrease the toxicity of the quantum dots, increase the light signal intensity of every luminous point, and obtain microspheres with large quantity and different fuorescence spectra characteristics so as to play a part in biological high-flux detection. The quantum-dot microsphere of micron size is applicable to the cure of tumour artery embolism; and the quantum-dot silicon-dioxide microspheres with different grain sizes evenly arranging from nanometer to micron can be obtained by the method.