4 results about "Template synthesis" patented technology

The application discloses a kind of supermolecule self-decomposition template synthesis multi-element doped diameter adjustable carbon-based micropipe method, belong to carbon micropipe preparation technical field, operation steps are as follows: (1) respectively preparation containing melamine (M) or 2,4,6-triaminopyrimidine (TAP) solution A and containing cyanuric acid (CA) or trithiocyanuric acid (TCA) solution B;(2) A liquid drop is added to B liquid, and the supermolecule precursor of M-CA, M-TCA, TAP-TCA is obtained;(3) 2-methylimidazole and sulfur, boron, phosphorus, fluorine and other element compounds are added in the solution of precursor, and after heating and drying, the precursor composite with different diameters is obtained by drying in oven for 24h;(4) it is obtained by calcining at 500-700 DEG C for 1-2h under argon atmosphere;In the application, the synthesized supermolecule as a template has the advantages of self-decomposition, adjustable diameter, and can be partially converted into carbon-based materials;During preparation, adding appropriate drugs realizes multi-element doping in one step, and the method has the advantages of simplicity, low cost and large-scale preparation.

This invention belongs to the field of molecular sieve preparation technology, specifically disclosing a non-transformable solid-phase template-free method for synthesizing molecular sieves. The invention first grinds and mixes a silicon source, an aluminum source, sodium hydroxide, potassium hydroxide dispersion, and seed crystals (CHA or PHI molecular sieve seed crystals) to obtain a mixture; then, the mixture is crystallized to obtain CHA or PHI molecular sieves. The preparation method disclosed in this invention, due to the absence of solvents, results in high product yield, low-pressure and safe synthesis process, simple process, no expensive molecular sieve raw materials, and no need for calcination to remove organic components. This eliminates organic pollution and wastewater problems at the source, achieving environmental friendliness in the molecular sieve synthesis process and significantly reducing production costs.

The present disclosure discloses a method for preparing a spatial chip, a spatial chip, and a use thereof. The method comprises: hybridizing to attach a single-stranded nucleic acid molecule to a surface of a solid-phase substrate, the single-stranded nucleic acid molecule comprising a first fixed sequence, a spatial barcode sequence, a sequencing primer binding sequence and a second fixed sequence, a first probe being attached to the surface of the solid-phase substrate of the chip, and the first probe comprising a complementary sequence of the first fixed sequence and a complementary sequence of the second fixed sequence; ring closing, causing the single-stranded nucleic acid molecule to form a circular nucleic acid molecule; rolling circle amplification; sequencing, to obtain sequence information of the spatial barcode sequence; synthesizing a single-stranded nucleic acid molecule by using the rolling circle amplification product as a template, to obtain a single-stranded nucleic acid molecule library; and fixing and clustering, fixing the single-stranded nucleic acid molecule library on the surface of the solid-phase substrate to form a single-stranded nucleic acid molecule cluster. According to the present disclosure, a chip having a nucleic acid probe carrying spatial position coordinate information can be prepared.