Construction of pH-responsive drug delivery platform with calcium

Construction of simple and convenient platforms for controlled delivery of anti-cancer drugs is of great importance for medical science and pharmaceutics. Here, ... Calcium carbonate (CaCO 3) has long been used as a delivery system owing to its wide availability, biocompatibility, and degradability. However, it often suffers from many ...

Calcium Carbonate Market Share, Growth & Future Scope …

The calcium carbonate market is expected to grow at 5.4 % CAGR from 2022 to 2029. It is expected to reach above USD 64.73 billion by 2029 from USD 39.1 billion in 2020. Calcium carbonate, having the chemical formula CaCO3, is a chemical substance. It is a typical substance found in rocks as the minerals calcite and aragonite, most notably as ...

Numerical modeling for crack self-healing concrete by microbial calcium

Microbial calcium carbonate offers an attractive biotechnique to fill pores volume as well as both micro and macrocracks in the affected cementitious material, resulting in barriers to inhibit water or aggressive chemical flow. ... Construction and Building Materials, Volume 144, 2017, pp. 406-411. Hao Ling, Chunxiang Qian.

Cold Sintering of Calcium Carbonate for Construction …

An alternative to traditional binder-based construction materials using "cold sintering", a hydrothermal mechanism that involves subjecting the sample to simultaneous pressure and comparatively low temperatures, was explored. Ground and precipitate calcium carbonates (GCC and PCC) were used as the primary starting materials.

Limestone: The Calcium Carbonate Chemical …

Limestone, as used by the minerals industry, is any rock composed mostly of calcium carbonate (CaCO 3). Although limestone is common in many parts of the United States, it is critically absent from some. ... It is the raw …

Calcium Carbonate Market

The Calcium Carbonate Market size is estimated at 164.42 Million tons in 2024, and is expected to reach 191.36 Million tons by 2029, growing at a CAGR of 3.08% during the forecast period (2024-2029). The outbreak of COVID-19 and resultant lockdowns and social distancing norms led to the complete shutdown of various industries in the automotive ...

Maximising the benefits of calcium carbonate in …

Cement production significantly contributes to global climate change and implementation of carbon capture, utilisation and storage (CCUS) in construction materials is considered …

Ground Calcium Carbonate | Carmeuse

Description: Carmeuse is a leading producer of ground calcium carbonate. Calcium carbonate (CaCO 3) is a very common chemical compound making up 4% of the earth's crust and is the primary constituent in limestone. While it is abundant, not all limestone is suitable for ground calcium carbonate (GCC) production due to impurities.

Recycled concrete and CO₂ from the air made into a new …

Calcium carbonate concrete is made from waste concrete and carbon dioxide from the air or industrial exhaust gasses. It shows promise as a future …

Quality improvement of mixed and ceramic recycled aggregates by

The calcium carbonate stratum on this kind of RA is easy to recognize because the microbial deposition of B. sphaericus has a characteristic appearance, it looks like a white agglomeration of globular structures, which show the imprints of bacterial cells involved in carbonate precipitation, more or less prevalent according to the bacterial ...

Calcite : Properties, Formation, Occurrence and Uses Areas

Calcium Supplements: Calcite is a natural source of calcium, and calcium carbonate derived from calcite is used in dietary supplements and antacids to provide calcium to the body. In summary, calcite's wide range of industrial and practical uses highlights its importance in various fields, from construction and manufacturing to …

Facile construction of drugs loaded lipid-coated calcium carbonate …

Facile construction of drugs loaded lipid-coated calcium carbonate as a promising pH-Dependent drug delivery system for thyroid cancer treatment Heliyon . 2023 Jul 19;9(9):e18413. doi: 10.1016/j.heliyon.2023.e18413.

Limestone | Characteristics, Formation, Texture, …

Limestone is used extensively in road and building construction, and is a material found in aggregate, cement, building stones, chalk, and crushed stone. ... When heated to temperatures of …

Facile construction of drugs loaded lipid-coated calcium carbonate …

Wang et al. stated calcium overload cancer therapy through the synthesis of pH-sensitive sodium hyaluronate-modified calcium peroxide nanoparticles (SH–CaO 2 NPs), numerous calcium-based nano-platforms, such as calcium carbonate (CaCO 3), calcium silicate (CaMgSiO 4), and calcium phosphate (CaP) have been established …

A concrete solution | EurekAlert!

Calcium carbonate concrete is made from waste concrete and carbon dioxide from the air or industrial exhaust gases. It shows promise as a future …

8 important uses of Calcium Carbonate In Construction

Calcium is used in the production of asphalt and in road construction. It is added to asphalt mixes to improve the mechanical properties and performance of asphalt pavements. Calcium helps enhance the stability, durability, and resistance to deformation of the asphalt mixture, resulting in longer-lasting and more reliable roads. 5.

Construction of calcium carbonate-liposome dual-film

Request PDF | Construction of calcium carbonate-liposome dual-film coated mesoporous silica as a delayed drug release system for antitumor therapy | As is well known to all, delivering drug ...

Bioconcrete presages new wave in environmentally friendly …

In concrete's highly alkaline environment, this CO 2 combines with calcium ions to form solid calcium carbonate, which can seal cracks up to one millimeter wide in …

Calcium carbonate

Three types of calcium carbonate-containing rock are excavated and used by industry. They are limestone, chalk and dolomite. Limestone and chalk are both forms of calcium carbonate and dolomite is a mixture of …

Maximising the benefits of calcium carbonate in …

construction materials18, offering alternatives to mined limestone. Therefore, in the context of CCUS with alkaline wastes, we argue ... calcium carbonate could be readily adjusted by fine-tuning ...

Applications of microbial calcium carbonate precipitation in …

Microbial calcium carbonate precipitation (MCP) in concrete is reportedly an effective method for environmental remediation and construction restoration [11, 12]. Bacterial concrete, a sort of self-healing concrete, can be used to treat cracks by adding a unique type of bacteria as well as a calcium-based nutrient to the concrete [ 13 ].

Review on geotechnical engineering properties of sands

As a result of urea hydrolysis, net pH increases to ~9 due to the hydroxyl ions produced during the dissolution of ammonium. Calcium carbonate minerals exist in nature as three types of anhydrous polymorphs (calcite, aragonite, vaterite); amongst the three, calcite is the most stable mineral [46].The calcium carbonate minerals produced …

Construction of calcium carbonate-liposome dual-film

As is well known to all, delivering drug precisely to the tumor site is beneficial to improve antitumor effect.In this study, we reported mesoporous silica nanoparticles (MSNs) coated with dual-film of calcium carbonate (CaCO 3) and lipid bilayer (denoted as MSNs@CaCO 3 @liposomes) innovatively which achieve sustained drug release …

8 important uses of Calcium Carbonate In Construction

Calcium carbonate is a very stable material, so makes for a durable construction material. And the ability to recycle large quantities of material and waste is …

Carbon-capturing concrete company is "taking CO2 out of …

To make cement, calcium carbonate (usually in the form of limestone) is heated to around 1,480 degrees Celsius to extract calcium oxide. This process releases …

Construction of calcium carbonate-liposome dual-film …

As is well known to all, delivering drug precisely to the tumor site is beneficial to improve antitumor effect. In this study, we reported mesoporous silica nanoparticles (MSNs) coated with dual-film of calcium carbonate (CaCO 3) and lipid bilayer (denoted as MSNs@CaCO 3 @liposomes) innovatively which achieve sustained drug release anchored at tumor …

Microbially Induced Calcium Carbonate Precipitation in Construction

Thus, the bacteria precipitate calcium carbonate that can improve the properties of cementitious materials and can act as an effective binder and a high-quality sealant for construction materials ...

Maximising the benefits of calcium carbonate in sustainable …

With the recognised reactive role of calcium carbonate in PC, there is a growing interest in harnessing various forms of calcium carbonate to enhance the …

(PDF) MICROBIAL INDUCED CALCIUM CARBONATE …

Bio-based construction, using Microbial Induced Calcium Carbonate Precipitation (MICCP) has been investigated in recent years as a potential cost-effective and environmentally friendly alternative ...

Startups are on the Verge of Transforming Concrete

Concrete has served as the foundation stone – literally – of the construction industry for hundreds of years. ... it also creates a super strong material called calcium carbonate, which reduces the total amount of concrete that needs to be used. CarbonCure is working with construction companies – like Vulcan Materials – to get this new ...