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The charm of the silk fabric has allured mankind since thousands for years. The dazzle, broad range of colors and the excellent texture has made this fabric - the most amicable of all. Silk fabric is manufactured by both, naturally and artificially. There are four types of natural

According to USFDA, a combination product is one composed of any combination of a drug and device; biological product and device; drug and biological product

silk is available, namely tasar, mulberry, muga and eri. However, the higher demand for natural silk led pressure to find out other options to make silk. The four natural silk sources seem incapable to cater the increasing demands. Now here a significant question arises - Is ther

; or drug, device, and biological product and fixed dose combination would include two or more combinations of drug.

Examples of combination products may in

e any other source available to get natural silk? The answer is "YES", it's a "Spider Silk". It is true that irritate ting and ignored insect can produce good silk fibre.

Spider silk is a fibre, which is extracted from spiders. It is strong fibre, even its tensile strength is com

lude drug-coated devices, drugs packaged with delivery devices in medical kits, and drugs and devices packaged separately but intended to be used together.

pared to the steel. The tensile strength for one type of steel at 1.65 Gpa, whereas spider silk is nearly at 1.3 Gpa. But, the density of spider silk less than steel and its tensile strength to density is about five times more than steel, such as DuPont's Kelvar, aromatic nylon fi

here is enormous increase in the number of combination products entering the market in the recent years. Combination products have proven advantages but fixe

laments

Spider silk's Structure Within a distinctive fibre, there are crystalline sectors with amorphous linkages. These crystal sectors are beta-sheets, which are put together. Spider silk is very flexible, and can be stretched up to 40 percent of its original length with no br

d dose combinations are still in the process of convincing regulatory authority on their advantages over the single ingredient formulations.

Combination pro

eakage problems. This results in a high ductility. Liquid crystalline spinning of spider silk is similar to aromatic nylon.

Spider silk is made of complex molecules of protein. Spider can't be farmed such as silkworms, as they are cannibals. Due to this nature they even eat each

ucts have become life saving products for the pharmaceutical companies who doesn’t have many innovative molecules in their product pipeline and have been inc

other. The silk extracted is very fine, thus to make one square yard cloth 400 spiders are require. The fibre gets harden when it is exposed to open air that creates a problem to work with. Because of the repetitive symptoms of the DNA encoding it is difficult to recognize its seq

easingly used in the product life cycle management. Even the companies having product patents are trying to extend their product life cycle through the combi

uence. Only from 14 species the protein has been decoded.

Although various protein sequences are found in different, a common in spider silk structure is a sequence of amino acids, which self-assembled into a beta sheet group. The Ala rich blocks are distinguished by segments of

nation products and maximize the revenues. But the companies involved in this practice are overlooking that they are burdening the patients both economically

amino acids with heavier side groups. The beta sheets gathers to make crystals, on the other side, other segments makes amorphous domains. The interaction between the crystalline segments and elastic amorphous regions results exclusive spider silk properties.

Spider Silk Origin

and physically. They need to rightly judge the benefits of the combination products and they have to even look at the risks involved when combining the produ

The silk gland releases the fibre. Different spider species have different glands for their own reason like web-creation, housing, capturing the prey and defense. The visible part of the gland is called as the spinneret. The initial part of the gland is full of thiol and tyrosine,

ts. Some of the combination products were well accepted by physicians while others suffered. Companies involved in development of combination products are fi

the key ingredients in silk fibre. After making of fibres, the ampulla plays role of a storage box. Here, spinning duct sweeps-off water from the fiber and small channels also help in this process. Liquid separation is conducted at the verge the distal limb of the duct, and furth

ding difficulty in defining their combination products and facing various challenges from selecting a combination to marketing it.

Following aspects would a

er passes to the valve. The valve is anticipated to help in fixing broken fibers again, playing more in the path of a helical pump.

Artificial spider silk

It is not usually possible to utilize spiders to produce spider silk in enormous quantity to cater industrial demands, becau

dd to the challenges in developing combination products:

Which markets to tap where the combination products can do fairly well?
Which combination prod

se it is hard to manage huge number of spiders. Steps have taken in extracting the spider silk gene and using other options to manufacture the needed quantity of spider silk. In year 2000, a Canadian biotechnology company, Nexia was successful in making spider silk protein in goat

cts are meaningful and rational?
Which therapeutic categories to select?
Which Combinations can address unmet needs of the patients?
Do combin

s.

These goats hold the spider silk protein gene, and the milk produced contained considerable amount of the protein. However, the trials were unsuccessful to spin the protein into a fibre equivalent to the natural spider silk.

The spider's spinneret is able in turn the silk pro

tions increase the patient compliance?
What would be the developing cost?
How to tackle the risks encountered during combination product developmen

teins into strong domains. Particularly, the spinneret makes an incline of protein concentration, pH and pressure that leads the protein blend through liquid crystalline transitions, resulting creation the required silk structure. Imitating this process in laboratory has been witn

t?

As combination products don't fit into the traditional categories of drugs, medical devices, or biological products, the USFDA is in the process of devel

essed very tough. Nexia tried to imitate this process by pressing the solution of protein via fine holes; however, this was inefficient trial to manage the fibres appropriately.

Spider Silk Applications

Recent research in the spider silk includes its potential utilization as an

ping new procedures for reviewing their safety, efficacy and quality.

Professional from academic institutions, pharmaceutical industries, health care indust

extremely strong and versatile thing. The interest in producing the spider silk is mostly due to a blend both, its mechanical properties and the non-polluting option. The manufacturing of latest man-made fibres like Dupont's Kevlar, are made from petrochemical processing that resu

y and representatives from various regulatory agencies are working out to design the regulatory requirements for manufacture and sale of combination products

lts massive pollution. On the other hand, the manufacturing of spider silk is entirely environment-friendly, as it is produced by spiders at normal temperature, pressure and water, without any pollution. Additionally, spider silk is fully biodegradable. If the production of spider

.

As there is an increasing trend of the combination products companies manufacturing such products should be able to tackle the problems involved in the de

silk increases, it may replace Kevlar and can be used to range of products like bullet-proof clothing, wear-resistant lightweight clothing, topes, nets, seat belts, parachutes, rust-free panels on motor vehicles or boats, bio-degradable bottles and medical items.

Conclusion

The

elopment. They need to be wiser in analyzing the market trends and the regulatory requirements.

Companies that provide selfless information through particip

spider silk has raised an open challenge to scientist, engineer, spinner and weavers to manage its development and to get acquainted with inherent skills of spider in making the silk thread.

Reference

http://en.wikipedia.org/

http://www.amonline.net/

htpp://www.chm.bris.ac.uk

tion in industry events and feedback to regulatory authorities would be able to face the challenges and will be successful in developing combination products

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You will learn in this article - * Why work at home? * Utilize your skills to maximize your profits * Your options to work at home?

As small business owners, we all have at least two things in common when it comes to our companies: Keeping other people’s hands off our personal assets and paying the lowest possible taxes (this usually means having profits taxed on our individual tax returns.) That’s what the S-corporation is all about. While the limited liability company (LLC) is quickly taking its place, S-corporation benefits still do outweigh LLC benefits for many companies. But how do you know it’s right for you? Let’s take a look.

You want your testimonials to be results-based so as to do the selling for you. This article will show you how.

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