Novel Anti-Wrinkle and Anti-Aging Nano Formulations and Method of Preparation using Novel Nano Co-Delivery System

Abstract

The invention relates to new anti-wrinkle and anti-aging nanoformulations, composed of non-toxic mesoporous silica nanoparticles, natural plant extracts (as the case may be: pomegranate oil, fennel oil, rosemary oil, chamomile oil, jojoba oil, rosehip oil), biological active agents (acetyl hexapeptide-8, aspartic acid), vitamins and others. Additionally, the present invention relates a new method for preparing the nanoformulations by co-encapsulating its active agents within a multilayer nanocarrier, thereby, enhancing their delivery through the skin barrier and their controlled accumulation at the desired site.

In certain embodiments, the active molecules are co-incorporated into an inner polymeric shell (silica derivatives) and onto its surface, followed by, the protection of an outer layer of chitosan-TAT (GRKKRRQRRRPQ). The active ingredients are crossed through the skin barrier using the disclosed delivery system to promote cell growth, skin rejuvenation and wrinkle removal.

Claims

1. Anti-wrinkle and anti-aging nano-formulations for topical application to wrinkled skin tissue in the skin of a subject, wherein said nanoformulation is delivered using a nanosystem delivery that is penetrating the skin barrier using a specific mechanism, and wherein, the formulation releases the active substances in a controlled manner.

2. A method to prepare an anti-wrinkle and anti-aging nanoformulation, wherein, according to claim 1, wherein said the active ingredients are multi encapsulated such as: in a core silica biocompatible shell, followed by the co-encapsulation of other active ingredients using a polysaccharide, protein or a biodegradable polymer that has it's surface modified by cell penetrating peptides.

3. An anti-wrinkle and anti-aging nanoformulation composition according to claim 1, wherein said the active ingredients are a composition comprising essential oil and Argireline, aspartic acid, wherein the amount of active ingredients and oils in the final composition vary from about 0.1% (v/w) to about 30%(v/w) but most preferable from about 5% (v/w) to about 15% (v/w).

4. An anti-wrinkle and anti-aging nanoformulation composition according to claim 1, wherein the composition will additionally contain antimicrobial agents, wherein, the antimicrobial agents are green tea extracts, wherein they may be found in a concentration between 0.002% (v/w) to about 0.06% (v/w) but most preferable between 0.0125% (v/w) to about 0.0025% (v/w).

5. An anti-wrinkle and anti-aging nanoformulation composition according to claim 1, wherein the composition will additionally contain vitamins, wherein, the vitamins are selected from a group of: Vitamin C, Vitamin D, Vitamin K, Vitamin E, Vitamin, or/and a mixture of those, and where, the Vitamins concentration rage used is between 0.0005% (v/w) to about 0.01% (v/w) and most preferable from 0.001% (v/w) to about 0.005% (v/w).

6. An anti-wrinkle and anti-aging nanoformulation composition according to claim 1, wherein the composition will additionally contain minerals, wherein, the minerals (avoiding aluminum silicates) are selected as Mg Silicate, Zn, etc, where, they are used is a concentration rage between 0.0005% (v/w) to about 0.01% (v/w) but most preferable from about 0.001% (v/w) to about 0.005% (v/w).

7. An anti-wrinkle and anti-aging nanoformulation composition according to claim 1, wherein the composition will additionally contain moisturizer oils, wherein, the moisturizer oils are selected from a class of oils, as the case may be: pomegranate oil (Punica granatum), fennel oil (Foeniculum), citrus oil, rosemary oil (Rosmarinus officinalis), chamomile oil (Matricaria chamomilla), jojoba oil (Simmondsia chinensis), rosehip oil (Calendula officinalis), Geranium oil (Pelargonium graveolens) Lavender oil (Lavandula), tea-tree oil (Melaleuca alternifolia), Black cumin (Nigella saliva L.), coconut (Cocus nucifera), castor (Ricinus communis), safflower (Carthamus tinctorius), mustard (Brassica spp. and Sinapis alba), coriander, (Coriandrum sativum), squash (Cucurbita maxima), linseed/flax (Linum usitatissimum), Brazil nut (Bertholletia excelsa) jojoba and maize (Zea mays), and wherein, the amount of oils found in the final composition will vary between 1% (v/w) to about 60% (v/w), and most preferable from about 5% (v/w) to 40% (v/w).

8. An anti-wrinkle and anti-aging nanoformulation composition according to claim 1, wherein the composition comprises fragrances, typically from natural oils such as: coconut (Cocus nucifera), lavender (Lavandula), jasmine (Jasminum), floral, rose (Rosa), herbal, lily (Lilum), orange (Citrus X sinensis), etc, and wherein, the amount of fragrances vary between 0.005% (v/w) to about 10%(v/w), but most preferable between 0.5% (v/w) to about 5% (v/w).

9. An anti-wrinkle and anti-aging nanoformulation composition according to claim 1, wherein, the composition comprises anti-oxidants and other preservatives, and wherein, they may be Vitamin C, Optiphen Preservative, etc., in a concentration between 0.001% (v/w) to about 2% (v/w), but most preferable from 0.005% (v/w) to about 1% (WW).

10. An anti-wrinkle and anti-aging nanoformulation composition according to claim 1, wherein, the nanoformulation contain physically stabilizers used in a concentration of 0.01% (v/w) to about 2% (v/w), but most preferable between 0.005% to about 1% (v/w).

11. An anti-wrinkle and anti-aging nanoformulation composition according to claim 2, wherein, the nanocapsule contain multi layer shells comprise of: silica core shells, and polysaccharides (gums, starch, cellulose, cyclodextrines and chitosan), proteins (gelatin, casein and soy proteins), lipids (waxes, paraffin and oils).

12. An anti-wrinkle and anti-aging nanoformulation composition according to claim I, 2, wherein, the cell penetrating peptides are selected from a group of transactivation transcriptional activator protein (TAT) and polyarginine.

13. An anti-wrinkle and anti-aging nanoformulation composition according to claim 12 wherein, TAT is Gly-Tyr-Arg-Lys-Lys-Arg-Arg-Gln-Arg-Arg-Arg-His-His-His-His-His-His.

14. An anti-wrinkle and anti-aging nanoformulation composition according to claim 1-13, wherein said the active substances has anti-wrinkle and anti-aging properties and diminishes the wrinkle, wherein the nanoformulation of Example 1. diminishes 60% of the wrinkles in 30 days, when applied twice daily.

Description

DETAILED DISCLOSURE OF THE INVENTION

[0022] The invention describes both new highly efficient anti-wrinkle nanoformulations and also new method to deliver active components across the skin barrier by using a layer-by-layer co-delivery nano-system. The active ingredients disclosed herein, are both natural oils (as the case may be: pomegranate oil, fennel oil, citrus oil, rosemary oil, chamomile oil, jojoba oil, rosehip oil), Vitamins (as the case may beVitamin C, Vitamin E, Vitamin K, Omega 3), Minerals (Zn, Mg Silicates) and Argireline (Ac-Glu-Glu-Met-Gln-Arg-Arg-NH2), Aspartic acid.

[0023] The high anti-wrinkle efficiency is a result of a synergetic effect of the active components, concentrations and co-delivery system. The multi shell co-delivery system is such designed such as to have enough solubility in the lipid domain of the stratum corneum, while still having sufficient hydrophilic nature to allow partitioning into the skin inner layers for an optimum delivery. Furthermore, the nanoparticles penetration is enhanced by the presence of TAT peptide (Human Immunodeficiency Virus (HIV) Trans-activator of transcription) on the nanoparticles surface, that is increasing the zeta potential of the nanoparticles (from without TAT 5.363.72 to 11.32.1 with TAT) and therefore, increasing both the adhesion and lysosome escape of the nanoparticles into cytosol..sup.31,32 The presence of cationic charge on the surface of the nanoparticles has been reported to interact with the negative charge of the endosomal membrane resulting in destabilization of the membrane and the nanoparticles escape into the cytosol..sup.33,34

[0024] The multi layer nanoparticles-core-shell co-system can consist (but not limited) of biodegradable and biocompatible polymers and sugars (casein, polysaccharides, chitosan, etc), consisting of smaller shells nanoparticles (silica, gold shell, etc) and co-encapsulated active ingredients and CPP (cell penetrating peptides). The co-system nanoparticles have a good stability, even when very mild conditions are used to encapsulate the desired substances. In accordance with the present invention, the nanoparticles penetration and accumulation at the desired site is more superior and follows the mechanism: (a) hair follicular channels, intracellular space and intercellular space or membranes. The encapsulated compounds are released gradually in various layers of the penetration pathways.

[0025] The co-system nanoparticles size can be controlled at: 30 nm, 40 nm, 50 nm, 60 nm or so. The encapsulated nanoparticles co-system is used in a nanoemulsion as a cream in order to serve the invention purpose, such as: to promote cell growth, skin rejuvenation and wrinkle removal. Note that, the delivery system can be used to serve various other purpose such as: delivery of other active compounds to fight: eczemas, psoriasis, wound healing, burn skin healing, skin whitening, firming-up.

[0026] The present invention gains superior results based on both its composition and delivery method. The disclosed delivery system and method has the ability to incorporate many active and sensitive ingredients using a new co-encapsulation method. Using this multi layer nano-delivery, lower quantities of active compounds are transported through the skin, at the targeted site with a controlled release thus, offering a prolong effect and lower toxicity..sup.35,36 Additionally, it offers isolation and protection from the environment, therefore, improvements in stability, efficiency but also improvements in tactile and the visual appearance of the products. The method it's offering new products, in response to human needs and desires.

[0027] To date, liposomes technology have been wildly reported and use in cosmetics and medicine for incorporation of various compounds, however, to the manufacture process that requires temperatures higher than 50 C., some active components and other biological active molecules are denaturized. Other common nanoparticles used in cosmetic are polysaccharides (gums, starch, cellulose, cyclodextrines and chitosan).sup.37,38, proteins (gelatin, casein and soy proteins), lipids.sup.39 (waxes, paraffin and oils).sup.40 and synthetic polymers [acrylic polymers, polyvinyl alcohol and poly(vinylpyrrolidone)] and biodegradable polymers..sup.41,42 Additionally, polymers such as: silicates,.sup.43 clays and polyphosphates were reported. Moreover, other simple and single layer nanoparticles (ex: synthetic polymers) of a certain size (100-200 nm) have difficulties to cross the multiple layers of skin and cells through lipophilic and hydrophilic membrane. Our co-system gain superiority compared with the reported once based on its small sizes (between 20 nm-70 nm) and its capacity to co-deliver in an efficient way two or more sensitive molecule of high molecular weight.

BEST MODE FOR CARRYING OUT THE INVENTION

EXAMPLES

Example 1

Preparation of a Cosmetic Anti-Wrinkle and Anti-Aging Cream A. Using a Nano Layer-By-Layer Delivery System

[0028] Step 1. Design and Synthesis of a Layer-By-Layer Co-Delivery System (chi-MSNs)

[0029] Encapsulation of the active ingredients into the Silica Shells (MSNs)

[0030] Jojoba oil (60%), Rosehip oil (39.9%), vitamin E (0.05%) and Omega 3 (0.05%) were mixed at room temperature for 30 min to form an emulsion. After, we added dropwise under magnetic stirring both the DEODMS (final concentrations ranging from 0.005 to 0.035 mol dm.sup.3) and TEOS (0.018 mol dm.sup.3). The formed dispersion was stirred for 1 h and then left to stand for 48 h so the reaction is completed. The dispersion was then purified using centrifugation.

[0031] Co-Encapsulation of MSNs with other active ingredients and its TAT-chitosan surface modification (chi-MSNs)

[0032] The as prepared MSNs were then functionalized with argieline-8 peptide and vitamin C followed by the addition of the TAT-chitosan polymer such as:

[0033] Preparation of TAT-Chitosan

[0034] First, TAT-chitosan conjugation was performed as follows: 1 ml of 1% chitosan in 1% HCl solution containing by adjusting the pH=6 were mixed with 200 mM EDAC and 200 mM NHSS at room temperature for 5 min. After, 5 mg of HIV-1 Tat peptide was added to the chitosan solution and stirred for 4 h at room temperature. Next, 1 mg of tris(2-carboxy-ethyl)phosphine hydrochloride was added and the solution was then left undisturbed for 30 min. The sample was then purified using centrifugation.

[0035] Co-Encapsulated Process

[0036] In a typical reaction, 0.25 g of previously prepared MSNs was dispersed in 5 mL anhydrous ethanol and 0.1 mg argieline-8 peptide and 0.06 mg Vitamin C was added and the suspension was then shacked overnight at room temperature. Afterwards, 10 ml TAT-chitosan was added into the solution and the reaction was continued for another 8 h. The layer-by-layer system was then purified through centrifugation and washing with DI water. The nanoparticles can be lyophilized and used when needed.

[0037] Step. 2. The Preparation of a Cosmetic Anti-Wrinkle and Anti-Aging Cream A. Using the Layer-By-Layer Delivery System

[0038] The chi-MSNs phase was used to formulate a skin care elegant product as follows: The water-soluble ingredient: tragacanth plant extract (0.65%) was dissolved under magnetic stirring of 150 RPM at room temperature in 300 ml H.sub.2O. The emulsion was then stored for 10 days at 5 C. in CO.sub.2. The emulsion formed a homogeneous east cream (28.8%), in which, glycerin (2%) and Argieline-8 (10%), hyaluronic acid (0.2%), MG, Al Silicate (4%), was added while mixing and then the suspension was heated at moderate agitation at 75 C. Subsequently, an oil phase containing the Chi-MSNs co-system nanoparticles (5%) along with Castrol oil (20%), Grape Seed Oil (5%), Jojoba oil (2%), Citrus oil (5%), were also heated at 75 C. then added on the water phase at vigorous agitation for 30 min. The resulting emulsion was then gradually cooled down. Other Oil formulations and minerals can be added into the emulsion. The mixture is then allowed to cool at room temperature

Example 2

Preparation of a Cosmetic Anti-Wrinkle and Anti-Aging Serum A. Using a Nano Layer-By-Layer Delivery System

[0039] Step 1. Design and Synthesis of a Layer-By-Layer Co-Delivery System (chi-MSNs)

[0040] Encapsulation of the active ingredients into the Silica Shells (MSNs)

[0041] The active ingredients such as: (1) Rosehip oil (40%) and (2) Argieline (60%), were mixed at room temperature for 30 min to form an emulsion. After, we added dropwise under magnetic stirring both the DEODMS (final concentrations ranging from 0.005 to 0.035 mol dm.sup.3) and TEOS (0.018 mol dm.sup.3). The formed dispersion was stirred for 1 h and then left to stand for 48 h so the reaction is completed. The dispersion was then purified using centrifugation

[0042] Co-Encapsulation of MSNs with other active ingredients and its TAT-chitosan surface modification (chi-MSNs)

[0043] The as prepared MSNs were then functionalized with argieline-8 peptide and vitamin C followed by the addition of the TAT-chitosan polymer.

[0044] Preparation of TAT-Chitosan

[0045] First, TAT-chitosan conjugation was performed as follows: 1 ml of 1% chitosan in 1% HCl solution containing by adjusting the pH=6 were mixed with 200 mM EDAC and 200 mM NHSS at room temperature for 5 min. After, 5 mg of HIV-1 Tat peptide was added to the chitosan solution and stirred for 4 h at room temperature. Next, 1 mg of tris(2-carboxy-ethyl)phosphine hydrochloride was added and the solution was then left undisturbed for 30 min. The sample was then purified using centrifugation.

[0046] Co-Encapsulated Process

[0047] In a typical reaction, 0.25 g of previously prepared MSNs was dispersed in 5 mL anhydrous ethanol and 0.3 mg argieline-8 peptide and 0.06 mg Vitamin C was added and the suspension was then shacked overnight at room temperature. Afterwards, 10 ml TAT-chitosan was added into the solution and the reaction was continued for another 8 h. The layer-by-layer system was then purified through centrifugation and washing with DI water. The nanoparticles can be lyophilized and used when needed.

[0048] Step. 2. The Preparation of a Cosmetic Anti-Wrinkle and Anti-Aging Cream Serum Using the Layer-By-Layer Delivery System

[0049] The chi-MSNs phase was used to formulate a skin care elegant product as follows: The water-soluble ingredient: tragacanth plant extract (0.65%) was dissolved under magnetic stirring of 150 RPM at room temperature in 300 ml H.sub.2O. The emulsion was then stored for 10 days at 5 C. in CO.sub.2. The emulsion formed a homogeneous east cream (33.75%), in which, glycerin (2%) and Argieline-8 (25%), hyaluronic acid (0.2%), Mg Silicate (4%), Vitamin C (0.05%) was added while mixing and then the suspension was heated at moderate agitation at 75 C. Subsequently, an oil phase containing the Chi-MSNs co-system nanoparticles (15%) along with Rosehip oil (20%) were also heated at 75 C. then added onto the water phase at vigorous agitation for 30 min. The resulting emulsion was then gradually cooled down. The mixture is then allowed to cool at room temperature.

Example 3

Preparation of a Skin Care Anti-Wrinkle and Anti-Aging Eye Cream Using a Nano Layer-By-Layer Delivery System

[0050] Step 1. Design and Synthesis of a Layer-By-Layer Co-Delivery System (chi-MSNs)

[0051] Encapsulation of the active ingredients into the Silica Shells (MSNs)

[0052] Fennel Essential oil (33.3%), Rosemary oil (33.3%), Chamomile oil (33.3%) were mixed at room temperature for 30 min to form an emulsion. After, we added dropwise under magnetic stirring both the DEODMS (final concentrations ranging from 0.005 to 0.035 mol dm.sup.3) and TEOS (0.018 mol dm.sup.3). The formed dispersion was stirred for 1 h and then left to stand for 48 h so the reaction is completed. The dispersion was then purified using centrifugation.

[0053] Co-Encapsulation of MSNs with other active ingredients and its TAT-chitosan surface modification (chi-MSNs)

[0054] The as prepared MSNs were then functionalized with argieline-8 peptide and vitamin C followed by the addition of the TAT-chitosan polymer.

[0055] Preparation of TAT-Chitosan

[0056] First, TAT-chitosan conjugation was performed as follows: 1 ml of 1% chitosan in 1% HCl solution containing by adjusting the were mixed with 200 mM EDAC and 200 mM NHSS at room temperature for 5 min. After, 5 mg of HIV-1 Tat peptide was added to the chitosan solution and stirred for 4 h at room temperature. Next, 1 mg of tris(2-carboxy-ethyl)phosphine hydrochloride was added and the solution was then left undisturbed for 30 min. The sample was then purified using centrifugation.

[0057] Co-encapsulated Process

[0058] In a typical reaction, 0.25 g of previously prepared MSNs was dispersed in 5 mL anhydrous ethanol and 0.3 mg argieline-8 peptide was added and the suspension was then shacked overnight at room temperature. Afterwards, 10 ml TAT-chitosan was added into the solution and the reaction was continued for another 8 h. Further, 5 mg of Argieline was added onto the nanocapsule. The layer-by-layer system was then purified through centrifugation and washing with DI water. The nanoparticles can be lyophilized and used when needed.

[0059] Step. 2. The Preparation of a Cosmetic Anti-Wrinkle and Anti-Aging Eye Cream A. Using the Layer-By-Layer Delivery System

[0060] The chi-MSNs phase was used to formulate a skin care elegant product as follows: The water-soluble ingredient: tragacanth plant extract (0.65%) was dissolved under magnetic stirring of 150 RPM at room temperature in 300 ml H.sub.2O. The emulsion was then stored for 10 days at 5 C. in CO.sub.2. The emulsion formed a homogeneous east cream (40%), in which, glycerin (2%) and Argieline-8 (30%) were added while mixing and then the suspension was hated at moderate agitation at 75 C. Subsequently, an oil phase containing the Chi-MSNs co-system nanoparticles (5%) along with Rosemary oil (6%), Chamomile Oil (6%), Fennel oil (6%), Citrus oil (5%), were also heated at 75 C. then added on the water phase at vigorous agitation for 30 min. The resulting emulsion was then gradually cooled down. Other Oil formulations and minerals can be added into the emulsion. The mixture is then allowed to cool at room temperature

Example 4

Preparation of a Cosmetic Anti-Wrinkle and Anti-Aging Mask Using a Nano Layer-By-Layer Delivery System

[0061] Step 1. Design and Synthesis of a Layer-By-Layer Co-Delivery System (chi-MSNs)

[0062] Encapsulation of the active ingredients into the Silica Shells (MSNs)

[0063] Pomegranate oil (60%), vitamin A (0.05%), Vitamin E (0.05%), Vitamin K (0.05%), and Vitamin D (0.05%) and Omega 3 (0.05%) were mixed at room temperature for 30 min to form an emulsions. After, we added dropwise under magnetic stirring both the DEODMS (final concentrations ranging from 0.005 to 0.035 mol dm.sup.3) and TEOS (0.018 mol dm.sup.3). The formed dispersion was stirred for 1 h and then left to stand for 48 h so the reaction is completed. The dispersion was then purified using centrifugation.

[0064] Co-Encapsulation of MSNs with other active ingredients and its TAT-chitosan surface modification (chi-MSNs)

[0065] The as prepared MSNs were then functionalized with argieline-8 peptide and vitamin C followed by the addition of the TAT-chitosan polymer.

[0066] Preparation of TAT-Chitosan

[0067] First, TAT-chitosan conjugation was performed as follows: 1 ml of 1% chitosan in 1% HCl solution containing by adjusting the pH=6 were mixed with 200 mM EDAC and 200 mM NHSS at room temperature for 5 min. After, 5 mg of HIV-1 Tat peptide was added to the chitosan solution and stirred for 4 h at room temperature. Next, 1 mg of tris(2-carboxy-ethyl)phosphine hydrochloride was added and the solution was then left undisturbed for 30 min. The sample was then purified using centrifugation.

[0068] Co-Encapsulated Process

[0069] In a typical reaction, 0.25 g of previously prepared MSNs was dispersed in 5 mL anhydrous ethanol and 0.1 mg argieline-8 peptide, 0.06 mg Vitamin C and 0.0065 of vitamin B complex was added and the suspension was then shacked overnight at room temperature. Afterwards, 10 ml TAT-chitosan was added into the solution and the reaction was continued for another 8 h. The layer-by-layer system was then purified through centrifugation and washing with DI water. The nanoparticles can be lyophilized and used when needed.

[0070] Step. 2. The Preparation of a Cosmetic Anti-Wrinkle and Anti-Aging Cream A. Using the Layer-By-Layer Delivery System

[0071] The chi-MSNs phase was used to formulate a skin care elegant product as follows: The water-soluble ingredient: tragacanth plant extract (0.65%) was dissolved under magnetic stirring of 150 RPM at room temperature in 300 ml H.sub.2O. The emulsion was then stored for 10 days at 5 C. in CO.sub.2. The emulsion formed a homogeneous east cream (40%), in which, glycerin (2%) and Argieline-8 (10%), hyaluronic acid (0.2%), Zn, Mg Silicate (4%), was added while mixing and then the suspension was heated at moderate agitation at 75 C. Subsequently, an oil phase containing the Chi-MSNs co-system nanoparticles (5%) along with Pomegranate oil (25%), Jojoba oil (2%), Citrus oil (5%), were also heated at 75 C. then added on the water phase at vigorous agitation for 30 min. The resulting emulsion was then gradually cooled down. Other Oil formulations and minerals can be added into the emulsion. The mixture is then allowed to cool at room temperature

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