3D-printed sponge could reduce side effects of chemotherapy

The Chemical Engineer | January 28, 2019

CHEMICAL engineers at the University of California (UC), Berkeley, US, have developed a 3D-printed ‘drug sponge’ which could help reduce the side effects of chemotherapy by absorbing excess drugs. Most anti-cancer drugs are poisonous, and chemotherapy can cause major side effects, such as nausea, vomiting, diarrhoea, and suppression of the immune system. These effects can be minimised by targeting drugs to the site of the tumour using a catheter for delivery (intra-arterial chemotherapy), but typically more than half of the drug can still escape the target organ and potentially poison other organs in the body.

Spotlight

To mitigate growing environmental threats such as climate change and resource depletion, the circular economy concept has gained momentum. Traditionally, materials have been lost through incineration or landfilling; however, in a circular economy, materials are recirculated into society, ideally to the same quality levels as they had originally, so that all demands within the material loop are fulfilled and use of virgin material can be avoided. However, recycling of materials, especially from heterogeneous waste streams such as household waste (HHW), often leads to recycled material of reduced quality, which only leads to a partial closing of the material loop – and thereby only partial circularity. This aspect is currently not part of the environmental assessment of materials and is therefore yet to be quantified.

Spotlight

To mitigate growing environmental threats such as climate change and resource depletion, the circular economy concept has gained momentum. Traditionally, materials have been lost through incineration or landfilling; however, in a circular economy, materials are recirculated into society, ideally to the same quality levels as they had originally, so that all demands within the material loop are fulfilled and use of virgin material can be avoided. However, recycling of materials, especially from heterogeneous waste streams such as household waste (HHW), often leads to recycled material of reduced quality, which only leads to a partial closing of the material loop – and thereby only partial circularity. This aspect is currently not part of the environmental assessment of materials and is therefore yet to be quantified.

Related News

COMMODITIES

Chevron Phillips Chemical Expand its Alpha Olefins Business With a Second World-Scale Unit to Produce on-purpose 1-Hexene.

Chevron Phillips Chemical | May 06, 2021

Chevron Phillips Chemical declared today intends to expand its alpha olefins business with a subsequent world-scale unit to create deliberately 1-hexene. Expected limit with regards to the new unit is 266 KTA with targeted startup in 2023 and its area will be Old Ocean, Texas, close to the organization's Sweeny office. At its pinnacle, the task expects supporting in excess of 600 development occupations and 50 or more full-time positions. 1-hexene is a basic segment in the creation of superior polyethylene (PE). This plastic gum is regularly utilized in the creation of film and unbending compartments for an assortment of ordinary items, including bundling for food, detergent and pharmaceuticals, among numerous others. “As global PE demand continues to grow, this project demonstrates Chevron Phillips Chemical’s commitment to expand with customer needs and remain a leading 1-hexene supplier,” said Mitch Eichelberger, executive vice president of polymers and specialties. “Our company is grateful for the support of our customers, elected officials, as well as local businesses and residents. Old Ocean is already home to several great assets, and we look forward to becoming an even more important economic engine for the local economy, while expanding our business to meet global demand from current and future customers.” Chevron Phillips Chemical's new 1-hexene unit will utilize the most recent advancement of the organization's restrictive, intentionally innovation to deliver exceptional purity comonomer grade 1 hexene from ethylene. The new resource will saddle the most recent advances in measure configuration to amplify creation, streamline asset the board and decrease discharges. Asset productivity and diminished discharges are both fundamental to the organization's manageability technique, as laid out in definite yearly reports accessible on www.cpchem.com. Chevron Phillips Chemical at present works two full reach alpha olefin units and the world's biggest intentionally 1-hexene unit at its Cedar Bayou plant in Baytown, Texas. The new unit's area will give extra adaptability and creation to satisfy expected need from the organization's developing client base, while setting up space for proceeded with future development. About Chevron Phillips Chemical Chevron Phillips Chemical is one of the world’s top producers of olefins and polyolefins and a leading supplier of aromatics, alpha olefins, styrenics, specialty chemicals, plastic piping and polymer resins. With approximately 5,000 employees, Chevron Phillips Chemical and its affiliates own nearly $17 billion in assets, including 31 manufacturing and research facilities in six countries. Chevron Phillips Chemical is equally owned indirectly by Chevron Corporation U.S.A. Inc. and Phillips 66 Company, and is headquartered in The Woodlands, Texas.

Read More

CHEMICAL MANAGEMENT

CORRECTING and REPLACING PPG Introduces CORAFLON Platinum Powder Coatings for Architectural Metals

PPG | July 19, 2021

PPG CORAFLON Platinum fluoroethylene vinyl ether (FEVE) fluoropolymer powder coatings for architectural extrusions and sheet aluminum were introduced today. Compared to standard FEVE powder coatings, the innovative coatings technique provides higher transfer efficiency rates of more than 20% and better corrosion resistance. PPG Coraflon Platinum powder coatings are available in various colors and glosses, including micas and metallic finishes, for metal building components and architectural applications that require the industry's highest levels of corrosion and weathering resistance. A wide variety of eye-catching mineral tones and textures that mimic cement, stone, terracotta, and other natural finishes are also available. The coatings meet the Fenestration and Glazing Industrial Alliance and American Architectural Manufacturers Association (FGIA/AAMA) 2605 standards. They are supported by more than nine years of third-party testing data, including 4,000 hours of cyclic corrosion testing. In addition, they provide architects with a gloss range of five to 85, compared to 25 to 70 for standard FEVE powder coatings. This enables the coatings to have the appearance of anodized aluminum when specified in a matte (low-gloss) finish while also providing corrosion resistance and long-term colorfastness that traditional anodized processes cannot. PPG Coraflon Platinum coatings have been tested to ensure that they meet strict environmental standards, such as the European Union's Registration, Evaluation, Authorisation, and Restriction of Chemicals (REACH) standards. The powder technology is designed to be free of potentially harmful substances such as triglycidyl isocyanurate (TGIC), perfluorooctanoic acid (PFOA), fluorosurfactants, volatile organic compounds (VOCs), hazardous air pollutants (HAPs), and Living Building Challenge (LBC) Red List substances. The coatings have also been tested and found to have 70% less e-cap than competing products. PPG Coraflon Platinum coatings have a 20-year guarantee and meet AAMA 2605 standards for film integrity, chalk resistance, and color change. About PPG Every day at PPG, we work to develop and deliver the paints, coatings, and materials that our customers have relied on for over 135 years. We solve our customers' most difficult problems with dedication and creativity, working closely together to find the best way forward. With our headquarters in Pittsburgh, we operate and innovate in over 70 countries and generate $13.8 billion in net sales in 2020. Customers in the construction, consumer products, industrial, transportation markets, and aftermarkets are served by us.

Read More

RAW MATERIALS

Spartech Acquires Leading Custom Plastics Provider, Crawford Industries

Spartech &Crawford Industries | September 18, 2021

Spartech, a leading manufacturer of engineered thermoplastics and custom packaging solutions, is pleased to announce the acquisition of Crawford Industries, L.L.C. This partnership will provide Spartech with new opportunities for growth and strengthen its abilities to develop and deliver standard and custom plastic sheet and packaging products to its valued customers. "It's the beginning of a great and mutually beneficial relationship – Spartech has the desire and resources to help Crawford take its business to the next level, and they have high-quality, thin-gauge capabilities that will enhance Spartech's existing product offerings," said Spartech CEO John Inks. "Together, we will be able to offer our joint customer base a wider array of products that we can leverage into new, more complete and more customized solutions." "Joining an industry leader with 14 manufacturing sites and a unique Innovation Center, a diverse arsenal of technologies, and enduring customer partnerships will accelerate Crawford's growth initiatives," said Kendall Faulstich, Co-President of Crawford Industries. Crawford Industries has more than 50 years of experience in manufacturing thin-gauge extruded polyethylene (PE) and polypropylene (PP) sheets and converting them into unique, environmentally friendly products that will add depth to Spartech's plastic products line. Founded in 1959 by Ken Crawford, the company's ability to not only extrude, but also convert PE and PP products through printing, die cutting and a variety of finishing capabilities, gives it a distinct differential advantage in its markets and provides one-stop shopping for its customers. About Spartech Headquartered in St. Louis, Missouri with a unique Innovation Center and 14 manufacturing facilities located throughout the United States, Spartech is a leading plastics manufacturer of engineered thermoplastic materials and specialty packaging products. Meeting exact standards for everything from food packaging to aerospace and automotive applications, Spartech continues to make a world of difference with sustainable, diverse, reliable and innovative products including UltraTuf, Royalite, Korad, PreservaPak and Polycast. About Crawford Industries With plants in Crawfordsville, Indiana and Thomasville, Georgia, Crawford Industries is the leading producer of graphic-quality polyethylene and polypropylene sheet and the industry leader in printing and converting for 50 years. Crawford makes custom packaging using plastic materials that are environmentally friendly, durable and cost effective.

Read More