Patent Description:
The dangers of pathogenic agents are well known in the art. Airports and railway stations are hubs for spreading various kinds of diseases as many passengers from different locations come in close contact in one place. Passengers usually transfer pathogenic agents directly by person-to-person contact and droplet spread or indirectly by contact with contaminated objects.

<CIT> relates to the prevention of the mass spread of infectious microbes at baggage conveyors available in public areas by applying an antibacterial cast and solvent foil on the surfaces of baggage conveyor belts.

<CIT> relates to an hygienic system for use at airports, comprising a) a security tray into which passenger articles can be temporarily placed; and b) an hygienic cover for the tray made of a cleanable material provided with a plurality of rectilinear score or fold lines which, when folded, closely approximate all interior dimensions of the rectangular tray and the dimensions of the peripheral edges, and which is slip-fittable into said tray. In this manner, the handling of security containers at airports should be more hygienic.

In the review article "<NPL>et al. describe the properties of so-called metal-organic frameworks (MOFs). And, the review article <NPL>, focuses in particular on the photoluminescence properties of MOFs and their potential use for chemical and biological sensing and detection.

Other common measures to avoid a transfer of pathogenic agents include washing hands, wearing gloves or other protection equipment, and regularly wiping surfaces. It was found that some of these measures are difficult to implement during travel and others are not as effective as intended.

The present invention aims at decreasing the danger of spreading diseases at airports or other public or private facilities. One object is to provide improved methods and an improved kit of parts for preventing an indirect transfer of pathogenic agents. It is another object to provide methods and a kit of parts that allow a high throughput of passengers in spite of said countermeasures to prevent spreading of pathogenic agents, i.e., said countermeasures are practicable without significant loss of time.

Another major problem at airports or other public places is the smuggling of prohibited drugs, including narcotics, especially hidden in luggage. Currently, if drug smuggling is suspected, the baggage has to be checked individually by an airport employee, which is very time consuming. Another method for detecting drugs is the use of drug sniffing dogs, although they are still used too little to be able to check the huge amount of baggage at the airport.

The risk of transporting explosives at airports or other public places such as railway stations or trade fairs is also a known problem. The closure of these public places when lost luggage is found, due to the potential danger of containing explosives, regularly paralyses air or rail traffic for several hours. At present, there is also no fast, effective method for the early detection of explosives that does not endanger the lives of people or explosive detection dogs.

The present invention relates to a method for security inspection of baggage and/or personal items according to claim <NUM>. Said method comprises the steps of:.

wherein said metal organic framework (MOF) material is selected from the group consisting of [Zn<NUM>(bpdc)<NUM>(bpee)], [Zn(dcbpy)(DMF)]·DMF, [Zn<NUM>O(cpi)<NUM>(H<NUM><NUM>)<NUM>] 3DMA·3EtOH·<NUM><NUM><NUM>, Zn<NUM>(ccmpb)<NUM>(bib), [Zn<NUM>(tdpat)(H<NUM><NUM>)<NUM>], Zn<NUM>(btc)<NUM>, [Zn<NUM>(fdc)<NUM>(bpee)<NUM>(H<NUM><NUM>)]n·<NUM><NUM><NUM>, [Zn<NUM>(bpdc)<NUM>(bpy)] 4DMF·H<NUM><NUM>, [Zn<NUM>(hfdc)<NUM>(bpy) xDMA], [(CH<NUM>)NH<NUM>]<NUM>[Cd<NUM>(H<NUM>phhc)], [Cd<NUM>(tipb)<NUM>(btc)Cl], [Cd(tipb)(tdc)], [Cd(tipb)(fdc)], [Cd<NUM>(ttpb)<NUM>(H<NUM><NUM>)<NUM>] 6DMF, [Tb(<NUM>,<NUM>,<NUM>-btc)]n, [Tb(hbttc)(H<NUM><NUM>)<NUM>] H<NUM><NUM>, [Eu<NUM>(mfda)<NUM>(HCOO)<NUM>(H<NUM><NUM>)<NUM>·H<NUM><NUM>], Eu<NUM>(mfda)<NUM>(NO<NUM>)(DMF)<NUM>, Fe-MIL-88B-NH<NUM>, [Cu(adp)(BIB)H<NUM><NUM>]n, MIL-<NUM>-Cr, [Co(pbda)(bpy) <NUM><NUM><NUM>]n and mixtures thereof, in particular [Zn<NUM>(bpdc)<NUM>(bpee)] and/or Fe-MIL-88B-NH<NUM>.

inspecting the inlay is in particular used to prevent the transport of explosives or other hazardous compound, chemical agents, toxins and/or drugs. According to some embodiments of the method the paper and/or polymer layer, in particular the elastic polymer layer, is secured to the X-ray tray by stretching it over an, in particular protruding, edge of said X-ray tray, wherein said paper and/or polymer layer preferably contracts at or below said edge, in particular on an exterior side of the X-ray tray.

According to another embodiment the method for security inspection according to the present invention is also characterized in that at least one metal organic framework (MOF) is provided on said outer side and/or on said inner side, in particular on said inner side, adapted and arranged to detect at least one explosive or any other hazardous compound and/or wherein at least one metal organic framework (MOF) is provided on said outer side and/or on said inner side adapted and arranged to detect at least one drug, in particular cocaine, heroin, cannabis, or the like. In the meaning of the present invention, the term "metal-organic framework" (MOF) preferably refers to a one, two, or three dimensional polymer including both organic and metal or metal oxide structural units, where at least one of the metal units is bonded to least one bi-, tri- or poly-dentate organic unit. In accordance with principles of the present invention, metal organic frameworks can be used as sorbents to detect various chemical substances and/or their precursors. Preferred metal organic framework materials comprise [Zn<NUM>(bpde)<NUM>(bpee)] (bpdc=<NUM>,<NUM>'-biphenyldicarboxylate; bpee=<NUM>,<NUM>-bipyridylethene) and/or Fe-MIL-88B-NH<NUM>, wherein [Zn<NUM>(bpde)<NUM>(bpee)] is particularly preferred. The compound Fe-MIL-88B-NH<NUM> is, for example, described in Electronic Supporting Information for cg-<NUM>-01738p, "<NPL>.

In this regard it has been found advantageous that the at least one metal organic framework is provided on said outer side and/or on said inner side by way of printing, in particular using a transparent dye. Alternatively, said paper and/or polymer layer is provided on its outer side and/or on its inner side, in particular on its inner side, with another layer, in particular polymer layer, comprising at least one metal organic framework. According to another embodiment said paper and/or polymer layer is provided on its outer side and/or on its inner side, in particular on its inner side, with an, in particular transparent, coating comprising at least one metal organic framework. According to another alternative said paper and/or polymer layer can also be provided on its outer side and/or on its inner side, in particular on its inner side, with an, in particular transparent, sticker comprising at least one metal organic framework.

According to a further embodiment, the at least one metal organic framework is adapted and arranged to provide a color signal under visible, UV or IR light once it has captured an explosive, any other hazardous compound or a drug. Thus, in some embodiments of the kit of parts the MOF layer changes its colour, in particular under UV light, as soon as coming into contact with explosives and/or drugs or their deposition materials. The intoxicants or drugs or explosives release characteristic volatile substances, for example VOCs, into the ambient air. The MOFS are inlaid and aligned to absorb these volatile substances into their coarse-meshed framework and, if necessary, to complex them thereby allowing for a colour change.

The at least one metal organic framework (MOF) material in another preferred embodiment is a luminescent metal organic framework (LMOF) material.

The metal organic framework (MOF) material of the present invention is particularly arranged and adapted for the detection of NO<NUM>-containing explosives or peroxide based explosives, in particular TATB. The NO<NUM>-containing explosive can for example be selected from the group consisting of TNT, DNT, RDX, PETN, DMNP, HMX and nitrocellulose.

Hereinafter a kit of parts is described. Although various combinations of single-use inlays and X-ray trays are in principle suitable for the above described method, in various embodiments of the method in step b. the detachable single-use inlay and the X-ray tray is a kit of parts and/or single-use inlay as described hereinafter.

Accordingly, the present invention is directed as well to a sheet material, in particular a detachable, single-use inlay, suitable for being placed in an X-ray tray, according to claim <NUM>.

Accordingly, the present invention is directed as well to a kit of parts according to Claim <NUM>. Said kit of parts comprises a detachable single-use inlay and an X-ray tray, in particular an X-ray tray adapted for a security check at an airport or other public or private facility,.

In accordance with various embodiments of the present invention said kit of parts comprises a detachable single-use inlay and an X-ray tray, in particular an X-ray tray adapted for a security check at an airport or other public facility or at an private facility, the detachable single-use inlay comprising an, in particular flexible, paper and/or polymer layer having an outer side and an inner side, in particular wherein the paper and/or polymer layer has an essentially circumferential fringe area adapted to grasp and/or cover the edges of said X-ray tray.

According to some embodiments the detachable single-use inlay comprises a protective cover and has a compressed state in which the paper and/or polymer layer is compressed, in particular folded, within said protective cover, and a decompressed state, in which the paper and/or polymer layer is decompressed, in particular unfolded.

According to some embodiments in the compressed state the length and width of the single-use inlay is reduced by at least <NUM>%, in particular by at least <NUM>%, preferably by at least <NUM>%, and/or in the compressed state the length and width of the single-use inlay is smaller than <NUM>, preferably smaller than <NUM>.

According to some embodiments the paper and/or polymer layer is a non-adhesive detachable layer that is attachable by stretching said essentially circumferential fringe area over the edges of said X-ray tray.

According to some embodiments the paper and/or polymer layer is watertight.

According to some embodiments the sheet material or inlay is or comprises a polymer layer, e.g. a polymer foil, in particular made of polyethylene or polypropylene, preferably chlorinated polyethylene or chlorinated polypropylene.

According to some preferred embodiments the paper and/or polymer layer has an average material strength of <NUM> to <NUM>, preferably an average material strength of <NUM> to <NUM>, particularly preferred an average material strength of <NUM> to <NUM>.

According to some embodiments the essentially circumferential fringe area comprises an elastic band.

According to some preferred embodiments the paper and/or polymer layer is coated on the outer and/or inner side with an antibacterial composition and/or an antibacterial composition is part of the material of the paper and/or polymer layer.

According to some embodiments the paper and/or polymer layer is transparent for X-rays and/or visible light.

The disclosure also relates to a sheet material, in particular single-use inlay as described above that is adapted for an X-ray tray, in particular an X-ray tray as described for the kit of parts.

Said sheet material, in particular said inlay, which is preferably suitable for being placed in an X-ray tray, in particular a detachable single-use inlay, comprises, in particular on one or both of its sides, a metal organic framework (MOF) material selected from the group consisting of [Zn<NUM>(bpdc)<NUM>(bpee)], [Zn(dcbpy)(DMF)]·DMF, [Zn<NUM>O(cpi)<NUM>(H<NUM><NUM>)<NUM>] 3DMA·3EtOH·<NUM><NUM><NUM>, Zn<NUM>(ccmpb)<NUM>(bib), [Zn<NUM>(tdpat)(H<NUM><NUM>)<NUM>], Zn<NUM>(btc)<NUM>, [Zn<NUM>(fdc)<NUM>(bpee)<NUM>(H<NUM><NUM>)]n·<NUM><NUM><NUM>, [Zn<NUM>(bpdc)<NUM>(bpy)] 4DMF·H<NUM><NUM>, [Zn<NUM>(hfdc)<NUM>(bpy) xDMA], [(CH<NUM>)NH<NUM>]<NUM>[Cd<NUM>(H<NUM>phhc)], [Cd<NUM>(tipb)<NUM>(btc)Cl], [Cd(tipb)(tdc)], [Cd(tipb)(fdc)], [Cd<NUM>(ttpb)<NUM>(H<NUM><NUM>)<NUM>] 6DMF, [Tb(<NUM>,<NUM>,<NUM>-btc)]n, [Tb(hbttc)(H<NUM><NUM>)<NUM>] H<NUM><NUM>, [Eu<NUM>(mfda)<NUM>(HCOO)<NUM>(H<NUM><NUM>)<NUM>·H<NUM><NUM>], Eu<NUM>(mfda)<NUM>(NO<NUM>)(DMF)<NUM>, Fe-MIL-88B-NH<NUM>, [Cu(adp)(BIB)H<NUM><NUM>]n, MIL-<NUM>-Cr, [Co(pbda)(bpy) <NUM><NUM><NUM>]n and mixtures thereof.

Preferably, the metal organic framework (MOF) material to be used with the inlay according to the invention is [Zn<NUM>(bpdc)<NUM>(bpee)] and/or Fe-MIL-88B-NH<NUM>
The disclosure also relates to a use of said kit of parts and/or said sheet material, in particular single-use inlay, according to claim <NUM> to prevent the transfer of pathogenic agents from an X-ray tray of a security check to baggage and/or personal items.

Some embodiments relate to the use of said kit of parts and/or single-use inlay during X-ray screening in an airport of baggage and/or personal items disposed in the X-ray tray on the single-use inlay.

Security checks are known in the art, e.g. from airports or when entering a building that contains sensitive information. Often security checks comprise a narrow passage where passengers are scanned. Baggage and/or personal items are usually scanned separately, e. using an X-ray scanner of comparatively high intensity. The security check may be a security gate for checking baggage and/or personal items in search for weapons, drugs, bombs or other prohibited items using said X-ray scanner. The present invention helps in preventing a transmission of pathogenic agents in this specific field from an X-ray tray to baggage and/or personal items and also from baggage and/or personal items to an X-ray tray.

It was found that with the above described single-use inlay, a transfer from bacteria from the X-ray tray commonly used at security checks can be prevented. Said X-ray trays are provided to dispose baggage and/or personal items therein when they are transported, e.g. on a conveyor belt, and scanned using X-ray based scanning machines. Said X-ray trays are touched by hundreds if not thousands of passengers. Shoes are put into said X-ray trays and have pathogenic agents attached to the shoe soles. Multiple personal items, such as used handkerchiefs, money, belts, jackets, tablets, laptops and watches are disposed in said X-ray trays. The result is that said X-ray trays may inevitably be heavily contaminated with pathogenic agents. The detachable single-use inlay may be used to prevent a transfer of pathogenic agents from the X-ray trays to baggage and/or personal items or vice versa. An X-ray tray in accordance with this disclosure relates to a tray for baggage and/or personal items that is used for transporting said baggage and/or personal items through an X-ray based scanning machine, i.e., a tray adapted for the X-ray based scanning process. Often a plastic tray of suitable size is made use of. Trays made solely out of metal often cannot be used as they may prevent X-ray detection of dangerous items within baggage or dangerous personal items using said X-ray based scanning machine.

In some embodiments of the method the paper and/or polymer layer is secured to the X-ray tray by stretching it over an, in particular protruding, edge of said X-ray tray, wherein the paper and/or polymer layer preferably contracts at or below said edge, in particular on an exterior side of the X-ray tray. The X-ray tray may be any kind of transport tray suitable for transporting baggage and/or personal items through a X-ray baggage scanner, in particular a plastic transport tray of suitable size for baggage.

In some embodiments the method of the present invention is a method for security inspection of passenger's baggage and/or personal items at an airport. It may also be a method for security inspection at an entrance of a school, courthouse, football stadium, soccer stadium, railway station or any other public buildings or areas that may require enhanced security, in particular where there is an increased danger of terrorist attacks and/or where large groups of people come together. It may also be implemented at private facilities, in particular private facilities which are not accessible to the general public.

In some embodiments of the method after disposing of the single-use inlay the method comprises the step of crushing, melting and/or shredding of the single-use inlay, in particular wherein the material of the single-use inlay is recycled.

In some embodiments the method step e. can include that a security office checks the baggage manually prior to removing said baggage and/or personal items from said single-use inlay. Preferably the inlay stay connected to said x-ray tray during this checking. It is also possible that the baggage and/or personal items is scanned a second time prior to removing said baggage and/or personal items.

In some embodiments of the kit of parts the entire single-use inlay consists of one single material. Said material may be one of the polymers discussed in this disclosure. It may also be a paper material.

In some embodiments of the kit of parts the single-use inlay may comprise an imprint, such as a trade mark of a producer or a logo.

In some embodiments of the kit of parts in the compressed state the paper and/or polymer layer is vacuum-packed within the protective cover. This reduces the amount of contamination within the protective cover. Many pathogenic agents need air and/or water to survive and remain infective. Also if the protective cover is opened or a seal of the protective cover is broken, air enters and the vacuum is destroyed. This can be visibly observed by an expansion of the single-use inlay and the surrounding protective cover. The user gets a warning if the single-use inlay is not safe to use any more due to possible contamination of the inner side said single-use inlay.

In some embodiments of the kit of parts in the compressed state the paper and/or polymer layer is contained in a gastight protective cover. Said gastight protective cover may be used to maintain a vacuum. However, it is also possible to use a gas, e.g. an inert gas or purified pathogen free air, to prevent any contamination of the interior of the protective cover, i.e., of the single-use inlay within the protective cover.

In some embodiments of the kit of parts the paper and/or polymer layer is a non-adhesive detachable layer that is attachable by stretching said essentially circumferential fringe area over the edges of said X-ray tray. It was found that this provides a quick and secure attachment. If the attachment is not sufficiently secure there is a danger that the protective cover will detach and the interior may be contaminated by pathogenic agents on the surface of the X-ray tray. Also this way of attachment usually can be applied very fast. At security checks a high number of people have to be processed and the transfer of baggage and/or personal items within X-ray trays is a bottleneck for the numbers of people that are checked per minute. It is in some situations crucial that the single-use inlay can be applied as fast as possible, i.e., within a few seconds. A similar principle is known from bed sheets, where fitted sheets can be applied faster than regular sheets.

In some embodiments of the kit of parts the paper and/or polymer layer is a non-textile layer. It may be that the paper and/or polymer layer is a paper layer. Said paper layer may have a thickness of less than <NUM>. Also a polymer layer is possible. Said polymer layer may be an elastic layer. It may also have a thickness of less than <NUM>.

In some embodiments of the kit of parts the paper and/or polymer layer is watertight. This prevents a transfer of contaminated liquid form the X-ray tray to the baggage and/or personal items disposed on the single-use inlay.

In some embodiments of the kit of parts the single-use inlay has an opening. The shape of said opening may be defined by the essentially circumferential fringe area. The opening may be elastic and in some embodiments can change its size to fit over a circumferential edge of said X-ray tray.

In some embodiments of the kit of parts the single-use inlay may clutch the X-ray tray due to its elastic properties, in particular due to an elastic band and/or an elastic paper and/or polymer layer.

The X-ray trays may in some embodiments have a width of <NUM> to <NUM> and a length of <NUM> to 6o cm, wherein the length is preferably at least <NUM> to <NUM> larger than the width. In some embodiments the height is <NUM> to <NUM>, in particular <NUM>,<NUM> to <NUM>. The single-use inlay may be adapted to fit multiple sizes, in particular the aforementioned dimensions.

The X-ray tray may contain an RFID card.

The X-ray tray may consist to at least <NUM>% (w/w), in particular to at least <NUM>% (w/w), of a polymer composition. In some embodiments polypropylene is a preferred material for said X-ray tray.

In some embodiments of the kit of parts the sheet material or inlay is or comprises a polymer layer, e.g. a polymer foil, in particular made of polyethylene or polypropylene, preferably chlorinated polyethylene or chlorinated polypropylene.

In some embodiments of the kit of parts the single-use inlay may have a total weight of less than <NUM>, in particular less than <NUM>, preferably less than <NUM>. It was found that very little material is required for a sufficient protection barrier.

In some embodiments of the kit of parts the paper and/or polymer layer may have an average material strength of <NUM> to <NUM>, preferably of <NUM> to <NUM>, particularly preferred of <NUM> to <NUM>.

In some embodiments of the kit of parts the essentially circumferential fringe area comprises an elastic band. The elastic band may comprise the same material as the polymer layer. It also may be made from latex or any other suitable material. Said elastic band may be used to ensure a tight grasp at or below the edges of the X-ray tray.

In some embodiments of the kit of parts the paper and/or polymer layer is coated on the outer and/or inner side, in particular on the inner side, with an antibacterial composition and/or an antibacterial composition is part of the material of the paper and/or polymer layer.

In some embodiments the paper and/or polymer layer may be transparent for X-rays. A transparency for X-ray helps in recognizing and scanning of baggage and/or personal items within the single-use inlay.

Alternatively or additionally the paper and/or polymer layer may the transparent for visible light. This helps a security office to verify that no hidden objects are arranged below the single-use inlay.

In some embodiments of the kit of parts the single-use inlay or the sheet material of the present invention is made of at least <NUM> % (w/w), in particular of at least <NUM>% % (w/w), of a flexible film material, in particular the polymer or/paper layer. It may be that the single-use inlay is made of at least <NUM> % (w/w), in particular of at least <NUM>% % (w/w), of said polymer film, wherein the polymer film is a flexible polymer film. It may also be that the single-use inlay is made up entirely from said flexible film material, in particular said polymer and/or paper layer.

Various embodiments of the kit of parts were described above. However, the disclosure also relates to a sheet material, in particular single-use inlay, as described above as such, i. without the X-ray tray as comprised in said kit of parts. The present invention relates to a detachable single-use inlay for an X-ray tray of a security check at an airport or other public facility, comprising an, in particular flexible, paper and/or polymer layer having an outer side and an inner side, wherein the paper and/or polymer layer has an essentially circumferential fringe area adapted to grasp and/or cover the edges of said X-ray tray. Said sheet material or single-use inlays may be provided in packages of <NUM> to <NUM><NUM> units, e.g. transport boxes, wherein said boxes have an oval, rectangular or circular opening in at least one side through which the single-use inlays may be removed.

The present invention also relates to the use of a single-use inlay as described above to prevent the transfer of pathogenic agents from an X-ray tray of a security check to baggage and/or personal items and/or to detect explosives, other hazardous compounds, chemical agents or toxines and/or drugs by use of a sheet material or inlay comprising said metal organic framework materials specified herein.

With the above-described embodiments of the kit of parts according to the present invention for detecting the illicit transport of explosives, other hazardous compounds and/or drugs can already be detected when baggage and/or personal items are placed on a detachable single-use inlay placed on an X-ray tray, in particular an X-ray tray adapted for a security check at an airport or other public or private facility.

The disclosure also relates to the use of a single-use inlay as described above to during X-ray screening in an airport of baggage and/or personal items disposed in the X-ray tray on the single-use inlay, in particular when used to prevent the transfer of pathogenic agents from an X-ray tray of a security check to baggage and/or personal items and to prevent the illicit transport of explosives and/or drugs.

<FIG> shows a schematic view of a security check <NUM> at an airport. A passenger <NUM> may take an X-ray tray <NUM> from a staple, places it on the desk <NUM> and attach the single-use inlay <NUM> which comprises at least one of the metal organic framework materials as specified herein. <FIG> shows the situation of the next step, wherein the X-ray tray <NUM> with the attached single-use inlay <NUM> and containing personal items <NUM> on said inlay <NUM> is placed on the conveyor belt <NUM> that goes into the X-ray baggage scanner <NUM>. A security officer <NUM> scans another X-ray tray <NUM> comprising baggage <NUM> using X-rays. The single-use inlay is not visible as X-rays are not impeded by the single-use inlay of this embodiment. A leaving conveyor belt <NUM> may transport each X-ray tray <NUM> out of said X-ray baggage scanner.

<FIG> shows a perspective view of a security check <NUM> at an airport, wherein a passenger <NUM> is shown, who starts to attach a single-use inlay <NUM> having an essentially circumferential fringe area <NUM> to the foremost X-ray tray <NUM>. During this procedure, the X-ray tray <NUM> may be placed on a table <NUM>. Once the single-use inlay <NUM> is attached and baggage and/or personal items have been filled into the X-ray tray <NUM>, it is transported through the X-ray baggage scanner <NUM> using conveyor belts <NUM> and <NUM>. In <FIG> it can be seen how the single-use inlay <NUM> looks like once it has been attached by said passenger <NUM>.

<FIG> shows a perspective view of an X-ray tray <NUM> having side walls <NUM>, a bottom <NUM> and a protruding circumferential edge <NUM>. Said side walls <NUM> and the bottom <NUM> define a deposition area <NUM>. The X-ray tray <NUM> has an exterior side <NUM> and an interior side <NUM>.

<FIG> shows a perspective view of a single-use inlay <NUM>, according to the invention, which is decompressed and detached from any X-ray tray. Said detachable single-use inlay <NUM> for an X-ray tray comprises a polymer layer <NUM> having an outer side <NUM> and an inner side <NUM>, wherein the polymer layer <NUM> has an essentially circumferential fringe area <NUM> adapted to grasp and/or cover the edges of an X-ray tray as shown in <FIG>. This embodiment may comprise an elastic polymer layer.

<FIG> shows a schematic view of a single-use inlay which is decompressed and detached from any X-ray tray. Said detachable single-use inlay <NUM> for an X-ray tray comprises a paper layer <NUM> having an outer side (not shown) and an opposing inner side <NUM>, wherein the paper layer <NUM> has an essentially circumferential fringe area <NUM> adapted to grasp and/or cover the edges of an X-ray tray as shown in <FIG>. Within the embodiment of <FIG>, folding lines <NUM> separate the bottom from the side walls and folding lines <NUM> define the essentially circumferential fringe area <NUM>. This embodiment is non-elastic.

<FIG> shows a schematic view of a single-use inlay which is decompressed and detached from any X-ray tray. Said detachable single-use inlay <NUM> for an X-ray tray comprises a paper layer <NUM> having an outer side (not shown) and an opposing inner side <NUM> and a MOF layer <NUM> on top of the paper layer <NUM>. Both layers, the paper layer <NUM> and the MOF layer <NUM>, have an essentially circumferential fringe area <NUM> adapted to grasp and/or cover the edges of an X-ray tray as shown in <FIG>. Within the embodiment of <FIG>, folding lines <NUM> separate the bottom from the side walls and folding lines <NUM> define the essentially circumferential fringe area <NUM>.

<FIG> shows a schematic view of a single-use inlay <NUM> which is decompressed and detached from any X-ray tray. Said detachable single-use inlay <NUM> for an X-ray tray comprises a polymer layer <NUM> having an outer side <NUM> and an inner side <NUM>, wherein the polymer layer <NUM> has an essentially circumferential fringe area <NUM> adapted to grasp and/or cover the edges of an X-ray tray as shown in <FIG>. Said essentially circumferential fringe area <NUM> comprises an elastic band <NUM>, which is integrated into the fringe area.

<FIG> shows a perspective view of a detachable single-use inlay <NUM> within an X-ray tray <NUM>, wherein the polymer layer <NUM> has an essentially circumferential fringe area <NUM> that grasps and covers the edge <NUM> of said X-ray tray <NUM>. Said X-ray tray <NUM> has side walls <NUM>, a bottom <NUM> and a protruding circumferential edge <NUM>.

<FIG> shows a perspective view of a protective cover <NUM> in which the paper and/or polymer layer of the single-use inlay <NUM> may be folded or crumpled in a compressed state, e.g. compressed by removing all air from within the protective cover <NUM>. The protective cover <NUM> may be a bag containing the paper and/or polymer layer on the inside. The protective cover <NUM> may comprise welding seams <NUM>. It may also comprise weakened zones <NUM> for opening the protective cover <NUM>.

<FIG> shows a schematic view of the method for security inspection of baggage and/or personal items according to the disclosure. Said method comprises the steps of <NUM> providing an X-ray tray having a deposition area; <NUM> attaching a single-use inlay to said X-ray tray to cover said deposition area, <NUM> putting the baggage and/or personal items onto the single-use inlay, in particular without direct contact to the X-ray tray; <NUM> X-ray scanning said baggage and/or personal items disposed in said X-ray tray, wherein the X-ray tray is moved by at least one belt conveyor into and out of the scanning area; <NUM> removing the baggage and/or personal items from said single-use inlay; <NUM> detaching said single-use inlay from the X-ray tray; <NUM> disposing of said single-use inlay, in particular in a waste container; and <NUM> burning said single-use inlay or <NUM> recycling said single-use inlay.

Claim 1:
Method for security inspection of baggage and/or personal items (<NUM>, <NUM>), the method comprising the steps of:
a. providing an X-ray tray (<NUM>) having a deposition area (<NUM>);
b. attaching an single-use inlay (<NUM>) to said X-ray tray (<NUM>) to cover said deposition area (<NUM>), said single-use inlay comprising a paper and/or polymer layer (<NUM>) having an outer side (<NUM>) and an inner side (<NUM>), ;
c. putting the baggage and/or personal items (<NUM>, <NUM>) onto the single-use inlay (<NUM>);
d. X-ray scanning said baggage and/or personal items (<NUM>, <NUM>) disposed in said X-ray tray (<NUM>);
e. removing the baggage and/or personal items (<NUM>, <NUM>) from said single-use inlay (<NUM>); and
f. detaching said single-use inlay (<NUM>) from said X-ray tray (<NUM>),
characterized in that
the inlay comprises metal organic framework (MOF) material,
wherein said metal organic framework (MOF) material is selected from the group consisting of [Zn<NUM>(bpdc)<NUM>(bpee)], [Zn(dcbpy)(DMF)]·DMF, [Zn<NUM>O(cpi)<NUM>(H<NUM><NUM>)<NUM>] 3DMA·3EtOH·<NUM><NUM><NUM>, Zn<NUM>(ccmpb)<NUM>(bib), [Zn<NUM>(tdpat)(H<NUM><NUM>)<NUM>], Zn<NUM>(btc)<NUM>, [Zn<NUM>(fdc)<NUM>(bpee)<NUM>(H<NUM><NUM>)]n·<NUM><NUM><NUM>, [Zn<NUM>(bpdc)<NUM>(bpy)] 4DMF·H<NUM><NUM>, [Zn<NUM>(hfdc)<NUM>(bpy)xDMA], [(CH<NUM>)NH<NUM>]<NUM>[Cd<NUM>(H<NUM>phhc)], [Cd<NUM>(tipb)<NUM>(btc)Cl], [Cd(tipb)(tdc)], [Cd(tipb)(fdc)], [Cd<NUM>(ttpb)<NUM>(H<NUM><NUM>)<NUM>] 6DMF, [Tb(<NUM>,<NUM>,<NUM>-btc)]n, [Tb(hbttc)(H<NUM><NUM>)<NUM>] H<NUM><NUM>, [Eu<NUM>(mfda)<NUM>(HCOO)<NUM>(H<NUM><NUM>)e·H<NUM><NUM>], Eu<NUM>(mfda)<NUM>(NO<NUM>)(DMF)<NUM>, Fe-MIL-88B-NH<NUM>, [Cu(adp)(BIB)H<NUM><NUM>]n, MIL-<NUM>-Cr, [Co(pbda)(bpy) <NUM><NUM><NUM>]n and mixtures thereof.